Komatsu Wheel Loader WA380, WA380Z-Series Repair Service Manuals
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Model:
Complete service repair manual with Electrical Wiring Diagrams for Komatsu Wheel Loader WA380, WA380Z Series, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.
Komatsu Wheel Loader WA380-, WA380Z-series workshop service repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
CEBM017402 - Wheel Loader WA380-6 Shop Manual.pdf
CEBM017403 - Wheel Loader WA380-6 Shop Manual.pdf
CEBM022703 - Wheel Loader WA380-6 Shop Manual.pdf
CEBM025604 - Wheel Loader WA380-7 Shop Manual.pdf
CEBMW23091 - Wheel Loader WA380-3 Shop Manual.pdf
GSBM006102 - Cargadora Avance WA380-3 Manual de Taller.pdf
SEBM006104 - Wheel Loader WA380-3 Loader avance Shop Manual.pdf
SEBM024711 - Wheel Loader WA380-5 Shop Manual.pdf
SEBM024712 - Wheel Loader WA380-5 Shop Manual.pdf
SEBMU4230106 - Wheel Loader WA380-1 Shop Manual.pdf
SEN00769-03 - Wheel Loader WA380-6 Shop Manual.pdf
SEN05650-03 - Wheel Loader WA380-7 Shop Manual.pdf
SEN06411-00 - Wheel Loader WA380-6, WA380Z-6 Shop Manual.pdf
SEN06411-02 - Wheel Loader WA380-6, WA380Z-6 Shop Manual.pdf
SEN06573 - Wheel Loader WA380-8 Shop Manual.pdf
VEBM440101 - Wheel Loader WA380-6 Shop Manual.pdf
VEBM440102 - Wheel Loader WA380-6 Shop Manual.pdf
VEBM460104 - Wheel Loader WA380-3 Shop Manual.pdf
TEN00089-03 - Wheel Loader WA380-5 Operation & Maintenance Manual.pdf
TEN00127-07 - Wheel Loader WA380-6 Operation & Maintenance Manual.pdf
TEN00490-02 - Wheel Loader WA380-6 Operation & Maintenance Manual.pdf
TEN00534-05 - Wheel Loader WA380-7 Operation & Maintenance Manual.pdf
SEAM005801 - Wheel Loader WA380-3 Operation & Maintenance Manual.pdf
SEAMU4230101 - Wheel Loader WA380-1 Operation & Maintenance Manual.pdf
SEAMU4230104 - Wheel Loader WA380-1, WA420-1 Operation & Maintenance Manual.pdf
SEAMU4230106 - Wheel Loader WA380-1, WA420-1 Operation & Maintenance Manual.pdf
CEAM003600 - Wheel Loader WA380-3 avance plus Operation & Maintenance Manual.pdf
CEAM017204 - Wheel Loader WA380-6 Operation & Maintenance Manual.pdf
CEAM023202 - Wheel Loader WA380-6 Operation & Maintenance Manual.pdf
CEAM025804 - Wheel Loader WA380-7 Operation & Maintenance Manual.pdf
CEAMW23090 - Wheel Loader WA380-3 Operation & Maintenance Manual.pdf
GEN00114-00 - Wheel Loader WA380-7 Field Assembly Instruction.pdf
Total Pages: 13,532 pages
File Format: PDF
Language: English
TABLE OF CONTENTS
CEBM017402 - Wheel Loader WA380-6 Shop Manual...2
CEBM017402 - WA380-6 sn A53001 and UP...2
CONTENTS...3
REVISED PAGES...4
SAFETY...20
Safety Notice...20
IMPORTANT SAFETY NOTICE...20
General Precautions...20
Preparations for Work...21
Precautions During Work...21
GENERAL...22
HOW TO READ THE SHOP MANUAL...23
Volumes...23
Distribution and Updating...23
Filing Method...23
Revised Edition Mark...23
Revisions...23
Symbols...23
HOISTING INSTRUCTIONS...24
Hoisting...24
Making Signs...24
Precautions...24
Precautions for Sling Work...24
Precautions for Using Mobile Crane...25
Precautions for Using Overhead Hoist Crane...25
Selecting Wire Ropes...26
AIR CONDITIONER CIRCUITS...27
Precautions for Handling Hoses and Tubes...27
Disconnecting Hoses and Tubes...27
Connecting Hoses and Tubes...27
MAINTENANCE STANDARD TERMS...28
Handling Connectors Used for Engines...30
Slide Lock Type...30
Pull Lock Type...31
Push Lock Type...31
Turn-housing Type (Round Green Connector)...33
PRECAUTIONS FOR OPERATIONS...34
Precautions when Carrying Out Removal Work...34
Precautions when Carrying Out Installation Work...35
Precautions when Completing the Operation...36
PUSH-PULL COUPLER...37
Type 1...37
Disconnection...37
Connection...37
Type 2...38
Disconnection...38
Connection...38
Type 3...39
Disconnection...39
Connection...39
COATING MATERIALS...40
STANDARD TIGHTENING TORQUE...42
Standard Tightening Tables...42
For Bolts and Nuts...42
For Split Flange Bolts...43
For O-Ring Boss Piping Joints...43
For O-Ring Boss Plugs...44
For Hoses (Taper-Seal Type and Face-Seal Type)...44
For Face Seal Joints...45
For 102, 107, and 114 Engine Series (Bolts and Nuts)...45
For 102, 107, and 114 Engine Series (Eye Joints)...45
For 102, 107, and 114 Engine Series (Taper Screws)...46
CONVERSION TABLES...47
Method of Using the Conversion Table...47
01 GENERAL...54
SPECIFICATIONS...56
Dimension Drawing...56
Specification Tables...58
WEIGHT TABLE...63
FUEL, COOLANT, AND LUBRICANTS...65
10 STRUCTURE, FUNCTION ANDMAINTENANCE STANDARD...68
ENGINE AND COOLING SYSTEM...73
Engine and Transmission Mounting...73
Cooling System...75
Cooling Fan Pump...77
Servo Valve...82
Cooling Fan Motor System...85
Hydraulic Motor...88
Suction Valve...89
Reversible Valve...90
Safety Valve...91
POWER TRAIN SYSTEM...92
Drive Line Components...92
System Diagram...93
Drive Shaft System...95
Power Train Piping System...96
Torque Converter...97
Without Lockup Clutch...97
Power Transmitting Route...99
Oil Flow...99
With Lockup Clutch...100
Torque Flow...103
When Lockup Clutch Is Disengaged...103
When Lockup Clutch Is Engaged...103
Oil Flow...104
Transmission...105
With Lockup Clutch...105
Forward and Reverse Clutches...115
Without Lockup Clutch...115
With Lockup Clutch...116
1st and 4th Clutches...117
2nd and 3rd Clutches...118
Operation of Clutch Pack...119
Transmission Torque Flow Route...121
Forward 1st Gear Speed...121
Forward 2nd Gear Speed...123
Forward 3rd Gear Speed...125
Forward 4th Gear Speed...127
Reverse 1st Gear Speed...129
Flow Control Valve...131
Valve Assembly...133
ECMV System...135
For R, 1st, and 2nd Clutches...135
For F, 3rd, 4th, and Lockup Clutches...137
ECMV For Gear Speed Clutch...139
ECMV for Lockup Clutch...142
Main and Torque Converter Relief Valve System...145
Outline...147
Operation...147
DRIVE AXLE SYSTEM...148
Front Axle Assembly...148
Rear Axle Assembly...149
Front Differential...151
Rear Differential...153
Limited Slip Differential...156
Front Axle Carrier...157
Rear Axle Carrier...159
Final Drive...163
STEERING SYSTEM...165
Steering Piping Diagram...165
Steering Column...166
Steering Pump...167
Pump Unit...169
Servo Valve...174
LS Valve...177
PC Valve...177
Steering Valve...181
Operation of Flow Amplifier...185
Operation of Flow Control Spool...187
Operation of Steering Valve...189
Steering Relief Valve...192
Overload Relief Valve...193
Relief Valve...194
Orbitrol Valve...195
Stop Valve...199
Steering Relief Valve...200
Steering Cylinder...201
Emergency Steering Motor...203
Emergency Steering Pump (If Equipped)...204
Joystick Steering Lever Linkage...205
Steering Electric Lever...206
Joystick EPC Valve...207
Multi-Function Lever and Joystick Lever (Modification)...208
SERVICE BRAKING SYSTEM...210
Brake Piping Diagram...210
Charge Valve...211
Brake Valve...219
Accumulator (for Brakes)...224
Front Brake...225
Rear Brake...227
PARKING BRAKE SYSTEM...229
Brake Control...229
Parking Brake Unit...231
Parking Brake Solenoid Valve...233
Emergency Parking Brake Release Valve...235
UNDERCARRIAGE AND FRAME...236
Axle Mounting and Center Hinge Pin...236
Tires...241
HYDRAULIC SYSTEM...243
Piping Diagram...243
Work Equipment Control Lever System...246
Multi-Function Mono-Lever Type...247
Hydraulic Tank...249
Tank Vent System...250
Power Train Pump...251
Work Equipment Pump...253
Pump Unit...255
Servo Valve...257
LS Valve...263
PC valve...264
Work Equipment Control Valve...267
4-Spool Valve...269
CLSS...285
Outline of CLSS...285
Basic Principle...286
Pressure Compensation Control...287
Function and Operation of Each Valve...288
Unload Valve...289
Work Equipment Valve (Supply of LS Pressure)...292
LS Bypass Plug...294
Pressure Compensation Valve...295
Lift Arm Regeneration Circuit...299
Variable Lift Check Valve...301
ECSS Control Valve...302
Accumulator Charge Valve...305
PPC Valve...309
Stabilizer Valve...314
Work Equipment PPC Cutoff Solenoid Valve...319
Accumulator (for PPC Circuit)...321
Accumulator (for ECSS)...322
WORK EQUIPMENT...323
Work Equipment Linkage...323
Bucket...325
Bucket Positioner and Boom Kickout...327
Bucket Positioner...328
Boom Kick-out...328
Proximity Switch...329
Work Equipment Cylinders...335
Lift Cylinder...335
Bucket Cylinder...335
CAB ENVIRONMENT...336
ROPS Cab...336
Air Conditioner...337
Air Conditioner Piping Diagram...337
Refrigerant Circuit Diagram...339
Air Conditioner Unit...340
Blower and Intake Unit...343
Refrigerant Compressor...344
Condenser...345
Receiver...346
Air Conditioner Panel...347
ELECTRICAL SYSTEM...351
Machine Monitor System...351
System Circuit Diagram...353
Machine Monitor...354
Items Displayed on Monitor...355
Machine Monitor Operation Switches...364
Setting Machine Monitor...365
Troubleshooting Function...365
Character Display Function...366
Operator Mode Functions...367
Service Mode Functions...370
Input and Output Signals...375
Transmission Controller System...383
Gearshifting Control Function...383
Cooling Fan Control Function...402
Work Equipment Pump Swash Plate Control Function...407
Transmission Cutoff Function...409
ECSS Function...411
Electric Emergency Steering Function...413
Directional Selector Switch Control Function...415
Multi-Function Mono Lever Function...417
Joystick Steering Function...419
System Circuit Diagram...422
Transmission Controller...423
Work Equipment Controller System...425
System Circuit Diagram...427
Work Equipment Controller...429
ELECTRONIC TRANSMISSION CONTROL...431
Combination Switch...433
KICKDOWN AND HOLD SWITCH...435
Load Meter Cancel Switch and Load Meter Subtotal Switch...435
MULTI-FUNCTION KNOB...436
Modification of Multi-Function Lever...437
JOYSTICK STEERING KNOB...439
KOMTRAX TERMINAL SYSTEM...440
KOMTRAX Terminal...441
Input and Output Signals...442
ENGINE STARTING CIRCUIT...443
ENGINE STOPPING CIRCUIT...445
PREHEATING CIRCUIT...446
ENGINE POWER MODE SELECTOR CIRCUIT...447
ENGINE OUTPUT DERATING FUNCTION...448
AUTOMATIC WARM-UP FUNCTION...448
PARKING BRAKE CIRCUIT...449
SENSORS...451
Speed Sensor...451
Torque Converter Oil Temperature Sensor...452
Hydraulic Oil Temperature Sensor...452
Transmission Oil Temperature Sensor...452
Brake Oil Temperature Sensor...452
Work Equipment Pump Oil Pressure Sensor...453
Steering Pump Oil Pressure Sensor...453
Lift Cylinder Head Oil Pressure Sensor...453
Lift Cylinder Bottom Oil Pressure Sensor...453
Transmission Cutoff Oil Pressure Sensor...454
Coolant Lever Sensor...455
Fuel Level Sensor...456
Air Cleaner Clogging Sensor...457
Accelerator Pedal Sensor...458
Water-In-Fuel Sensor...459
Boom Kickout Proximity Switch...460
Bucket Positioner Proximity Switch...460
Lift Arm Potentiometer...461
20 STANDARD VALUE TABLES...462
STANDARD VALUE TABLES...463
Service Value For Engine...463
Service Values For Chassis...464
POSTURE AND PERFORMANCE MEASUREMENTS...466
Machine Posture...471
30 TESTING AND ADJUSTING...474
TOOLS...479
Tools for Testing, Adjusting, and Troubleshooting...479
ENGINE COMPONENTS...485
Engine Speed...485
Measure Engine Speed (Low and High Idle)...485
Measure Torque Converter Stall Speed...485
Measure Hydraulic Stall Speed...486
Measure Torque Converter Stall and Hydraulic Stall (Full Stall) Speed...486
Exhaust Gas Color...487
Using Handy Smoke Checker A1...487
Using Smoke Meter A2...487
Valve Clearance...489
Engine Compression...491
Blow-by Pressure...495
Engine Oil Pressure...497
Intake Air (Boost) Pressure...498
Determining a Defective Cylinder...500
Procedures...500
Determining Cylinder Group...500
Isolating the Defective Cylinder...500
FUEL SYSTEM...501
Handling Fuel System Equipment...501
Releasing Residual Pressure in Fuel System...501
Measuring Fuel Pressure...502
Measuring Pressure in Fuel Low-pressure Circuit...502
Measuring Pressure in Fuel Return Circuit...503
Measuring Fuel Negative-Pressure Circuit Pressure...504
Fuel Delivery, Return, and Leak Rate...505
Measuring Supply Pump Delivery...505
Measuring Return Rate from Supply Pump...506
Measuring Leakage from Pressure Limiter...507
Measuring Return Rate from Injector...508
Bleeding Air from Fuel Circuit...509
Testing Leakage in Fuel System...510
Handling Reduced Cylinder Mode Operation...511
Handling No-Injection Cranking Operation...511
Handling Controller Voltage Circuit...511
EXHAUST SYSTEM AND PIPING...512
Checking Muffler and Muffler Stack for Looseness and Damage...512
Checking Muffler Function...512
Checking Installed Condition of Cylinder Head and Manifolds...512
Checking Engine Piping for Damage and Looseness...512
BELTS...513
Air Conditioner Compressor Belt...513
Alternator Belt...514
DIRECTIONAL LEVER...516
Checking Operating Effort...516
Checking Stroke...516
POWER TRAIN OIL PRESSURES...517
Oil Pressure Measuring Points And Gauges...519
Measuring Transmission Hydraulic Operating Pressures...520
Transmission Main Relief Pressure...520
Torque Converter Relief Pressure (Inlet)...521
Torque Converter Outlet Pressure...522
Lockup Clutch Pressure (Lockup Clutch Specification)...523
F (Forward) Clutch Pressure...524
R (Reverse) Clutch Pressure...525
1st Clutch Pressure...526
2nd Clutch Pressure...527
3rd Clutch Pressure...528
4th Clutch Pressure...529
Lubrication Pressure...530
Adjusting Power Train Oil Pressures...531
Transmission Main Relief Valve...531
TRANSMISSION...532
Speed Sensor...532
Flushing Transmission System...533
Torque Converter, Transmission, and Hydraulic Circuit...533
Moving the Machine if Transmission Valve Fails...535
STEERING SYSTEM...539
Steering Stop Valve...539
Testing...539
Adjusting...539
Steering Wheel...541
Measuring Play in Steering Wheel...541
Measuring Operating Effort of Steering Wheel...541
Measuring Operating Time of Steering Wheel...542
Steering Oil Pressure...543
Measuring Steering Relief Pressure...543
Measuring Steering Pilot Circuit Pressure...544
Adjusting Steering Relief Pressure...545
Adjusting Steering Control Circuit Pressure...545
Bleeding Air from Steering Circuit...546
Bleeding Air from Steering Pump...546
Bleeding Air from Steering Cylinder Circuit...546
Steering Column Lock Lever...547
HYDRAULIC DRIVE FAN...549
Measuring Fan Speed...549
Measuring Fan Drive Oil Pressure...550
Bleeding Air from Hydraulic Drive Fan Circuit...551
Bleeding Air From Fan Pump...551
Bleeding Air from Fan Motor Circuit...552
WHEEL BRAKE SYSTEM...553
Measuring Pressing Angle of Brake Pedal...553
Measuring Brake Performance...554
Accumulator Charge...555
Measuring...555
Adjusting...556
Measuring Brake Oil Pressure...557
Testing Wear of Wheel Brake Disc...559
Bleeding Air from Brake Circuit...560
Releasing Residual Pressure in Brake Accumulator Circuit...560
PARKING BRAKE SYSTEM...561
Testing Parking Brake Performance...561
Measuring Parking Brake Oil Pressure...563
Checking Wear of Parking Brake Disc...565
Releasing Parking Brake Manually...566
WORK EQUIPMENT SYSTEM...567
Work Equipment Control Levers...567
Measuring Operating Effort...567
Measuring Stroke...567
PPC Oil Pressure...568
Measuring PPC Valve Basic Pressure...568
Measuring PPC Valve Output Pressure...569
Replacing PPC Relief Valve...570
Work Equipment Hydraulic Pressure...571
Measuring Work Equipment Relief Pressure...572
Measuring Unload Pressure...573
Measuring Work Equipment LS Differential Pressure...574
Adjusting Work Equipment Relief Pressure...575
Adjusting LS Differential Pressure...575
Bleeding Air from Work Equipment Circuit...576
From Work Equipment Pump (Piston Pump)...576
From Hydraulic Cylinder...576
Releasing Residual Pressure in Work Equipment Circuit...577
From Circuit Between Hydraulic Cylinders and Control Valve...577
From ECSS (Travel Damper) Circuit...577
Work Equipment Positioners...578
Bucket Positioner...578
Boom Kickout...579
Proximity Switch Operation Pilot Lamp...580
ELECTRICAL SYSTEM TROUBLESHOOTING...581
Procedure for Testing Diodes...581
When Using Digital Type Circuit Tester...581
When Using Analog Type Circuit Tester...582
Preparation for Troubleshooting Electric System...583
Machine Monitor...583
Transmission Controller...584
Work Equipment Controller...585
KOMTRAX Terminal...585
Sensors...586
Boost Pressure and Temperature Sensor (BOOST PRESS & IMT)...586
Supply Pump IMV Solenoid (FUEL REGULATOR)...586
Common Rail Pressure Sensor (FUEL RAIL PRESS)...587
Engine Coolant Temperature Sensor (COOLANT TEMP)...587
KOMTRAX TERMINAL SYSTEM...588
Terminal Installed at Plant Before Shipment...588
Terminal Retrofitted Machine After Shipment...588
Starting Operation...588
Application for the Start of Use...591
Komtrax Terminal Lamps...593
Display Contents of 7-segment And Dot For CPU...595
MACHINE MONITOR SYSTEM...596
Adjusting Machine Monitor...596
Adjusting for Replaced, Reassembled, or Added Sensor/Controller...597
Adjustment for User’s Needs...598
Special Functions of Machine Monitor (EMMS)...599
Normal and Special Functions of Machine Monitor...599
Functions and Flow of Service Mode...600
Operator Mode...603
Service Meter/Clock Display Function (1)...603
Load Meter Function (2) (if equipped)...603
Odometer Display Function (3)...603
Maintenance Monitoring Function (4)...604
Telephone Number Input Function (5)...604
Language Selection Function (6)...604
Monitor Brightness Adjustment Function (7)...604
Time Adjustment Function (8)...605
Travel Speed/Engine Speed Display Selecting Function (9)...605
Travel Speed/Engine Speed Display/Non-Display Selecting Function (10)...605
Action Code Display Function (11)...606
Failure Code Display Function (12)...606
Service Mode...608
Switching to Service Mode and Screen Display (1)...608
Electrical System Fault History Display Function (ELECTRIC FAULT) (2)...610
Mechanical System Fault History Display Function (MACHINE FAULT) (3)...612
Real-Time Monitoring Function (REAL-TIME MONITOR) (4)...613
Real-Time Monitoring Code Tables...616
Engine Reduced-Cylinder Function (CYLINDER CUT-OUT) (5)...643
No-Injection Cranking Function (6)...644
Adjustment Function (TUNING) (7)...645
Maintenance Monitoring Function (8)...662
Operating Information Display Function (OPERATION INFO) (9)...668
Optional Device Selecting Function (10)...671
Machine Serial Number Input Function (11)...675
Model Select Function (12)...675
Initialize Function (13)...676
PM-CLINIC INSPECTION TABLE...677
40 TROUBLESHOOTING...682
POINTS TO REMEMBER WHEN TROUBLESHOOTING...697
SEQUENCE OF EVENTS IN TROUBLESHOOTING...699
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE...700
Precautions when Handling Electrical Equipment...700
Handling Electronic Control Unit...705
Points to Remember when Troubleshooting Electrical Circuits...706
ELECTRIC WIRE CODE...707
Classification by Thickness...707
Classification by Color and Code...707
How to Read Electric Wire Code...708
Type, Symbol, and Material...708
Dimensions...709
HANDLING HYDRAULIC EQUIPMENT...710
CHECKS BEFORE TROUBLESHOOTING...712
Categories and Method of Using Troubleshooting Charts...713
Troubleshooting Individual Electrical Circuits...714
Chart Use...716
Chart Tips...716
Troubleshooting Individual Hydraulic Circuits...717
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS...719
X-Type Connectors...719
SWP-Type Connectors...721
M-Type Connectors...723
S-Type Connectors...725
MIC-Type Connectors...727
AMP040-Type Connectors...729
AMP070-Type Connectors...731
AMP Connector...733
L-Type Connector...733
PA-Type Connector...734
Bendix (MS) Connector...734
KES1 (Automobile) Connectors...735
F-Type Connector...736
Connectors for Relay (Socket-Type)...737
HD30 Series Connectors...738
DT Series Connectors...744
DTM Series Connectors...746
DTHD Series Connectors...746
DTP Series Connectors...747
DRC26 Series Connectors...748
DRC12, 16 Series Connectors...750
AMP Connectors for Pump Controller (CH700)...751
BOSCH Connectors for Engine...752
SUMITOMO Connectors for Engine...753
CANNON Connector for Engine...754
AMP Connectors for Engine...755
FRAMATOME Connectors for Engine...756
PACKARD Connectors for Engine...758
DT Series Connectors for Engine...759
T-BRANCH BOX and T-BRANCH ADAPTER TABLE...760
MODE CHART...765
INFORMATION CONTAINED IN TESTING PROCEDURES...768
TROUBLESHOOTING BY FAILURE CODE...770
Failure Code Table...770
FUSE BOX AND SLOW-BLOW FUSES...781
Connection Table...781
Fuse Box 1...781
Fuse Box 2...782
Slow-Blow Fuses...782
FAILURE CODES...784
1500L0...784
TORQFLOW Transmission: Double Meshing...784
15SAL1...785
ECMV F Clutch: When Command Current is OFF, Fill Signal is ON...785
15SALH...787
ECMV F Clutch: When Command Current is ON, Fill Signal is OFF...787
15SBL1...789
ECMV R Clutch: When Command Current is OFF, Fill Signal is ON...789
15SBLH...791
ECMV R Clutch: When Command Current is ON, Fill Signal is OFF...791
15SEL1...793
ECMV 1st Clutch: When Command Current is OFF, Fill Signal is ON...793
15SELH...795
ECMV 1st Clutch: When Command Current is ON, Fill Signal is OFF...795
15SFL1...797
ECMV 2nd Clutch: When Command Current is OFF, FIll Signal is ON...797
15SFLH...799
ECMV 2nd Clutch: When Command Current is ON, Fill Signal is OFF...799
15SGL1...801
ECMV 3rd Clutch: When Command Current is OFF, Fill Signal is ON...801
15GLH...803
ECMV 3rd Clutch: When Command Current is ON, Fill Signal is OFF...803
15SHL1...805
ECMV 4th Clutch: When Command Current is OFF, Fill Signal is ON...805
15SHLH...807
ECMV 4th Clutch: When Command Current is ON, Fill Signal is OFF...807
2F00MA...809
Parking Brake: Malfunction...809
2G43ZG...811
Rear Accumulator: Low Oil Pressure...811
44K0L4...813
Bucket Positioner: ON/OFF Signals Disagree...813
AA1ANX...817
Air Cleaner: Clogging...817
AB00L6...819
Alternator: Signal Disagrees with Operating State of Engine...819
AB00MA...821
Alternator: Malfunction...821
B@BAZG...823
Engine: Rotation Derating by Low Engine Oil Pressure...823
B@BAZK...824
Engine Oil: Low Level...824
B@BCNS...825
Engine Coolant: Overheating...825
B@BCZK...827
Engine Coolant: Low Level...827
B@BEBF...829
Water in Fuel Error...829
B@C7NS...831
Brake Oil: Overheating...831
b@CENS...833
Torque Converter Oil: Overheating...833
B@CENS...835
Torque Converter Oil: Overheating...835
B@HANS...837
Hydraulic Oil: Overheating...837
CA111...839
Abnormality in Engine Controller...839
CA115...840
Engine Ne or Bkup Speed Sensor Error...840
CA122...841
Charge Pressure Sensor High Error...841
CA123...843
Charge Pressure Sensor Low Error...843
CA131...845
Throttle Sensor High Error...845
CA132...847
Throttle Sensor Low Error...847
CA144...849
Coolant Temperature Sensor High Error...849
CA145...851
Coolant Temperature Sensor Low Error...851
CA153...853
Charge Temperature Sensor High Error...853
CA154...855
Charge Temperature Sensor Low Error...855
CA155...857
Derating of Speed by Abnormally High Charge Temperature...857
CA187...859
Sensor Power Supply 2 Low Error...859
CA221...861
Atmospheric Pressure Sensor High Error...861
CA222...863
Atmospheric Pressure Sensor Low Error...863
CA227...865
Sensor Power Supply 2 High Error...865
CA234...867
Engine Overspeed...867
CA238...868
Ne Speed Sensor Power Supply Error...868
CA271...869
IMV/PCV1 Short Circuit...869
CA272...871
IMV/PCV1 Disconnection...871
CA322...873
Injector #1 Open/Short Error...873
CA323...875
Injector #5 Open/Short Error...875
CA324...877
Injector #3 Open/Short Error...877
CA325...879
Injector #6 Open/Short Error...879
CA331...881
Injector #2 Open/Short Error...881
CA332...883
Injector #4 Open/Short Error...883
CA342...885
Calibration Code Inconsistency...885
CA351...887
Injectors Drive Circuit Error...887
CA352...889
Sensor Power Supply 1 Low Error...889
CA386...891
Sensor Power Supply 1 High Error...891
CA428...893
Abnormally High Level in Water Sensor...893
CA429...895
Abnormally Low Level in Water Sensor...895
CA431...897
Idle Validation Switch Error...897
CA432...901
Idle Validation Action Error...901
CA435...905
Engine Oil Pressure Switch Error...905
CA441...907
Battery Voltage Low Error...907
CA442...911
Battery Voltage High Error...911
CA449...913
Common Rail Pressure High Error 2...913
CA451...917
Common Rail Pressure Sensor High Error...917
CA452...919
Common Rail Pressure Sensor Low Error...919
CA488...921
Derating of Torque by Abnormally High Charge Temperature...921
CA553...922
Common Rail Pressure High Error 1...922
CA559...923
Supply Pump Pressure Very Low Error 1...923
CA689...925
Engine Ne Speed Sensor Error...925
CA731...927
Engine Bkup Speed Sensor Phase Error...927
CA757...928
All Continuous Data Lost Error...928
CA778...931
Engine Bkup Speed Sensor Error...931
CA1633...933
KOMNET Datalink Timeout Error...933
CA2185...935
Throttle Sensor Power Supply Voltage High Error...935
CA2186...937
Throttle Sensor Power Supply Voltage Low Error...937
CA2249...939
Supply Pump Pressure Very Low Error 2...939
CA2311...941
Abnormality in IMV Solenoid...941
CA2555...943
Intake Heater Relay Disconnection Error...943
CA2556...945
Intake Heater Relay Short Circuit Error...945
D150KA...947
Emergency Steering Relay: Disconnection...947
D150KB...949
Emergency Steering Relay: Short Circuit...949
D150KY...951
Emergency Steering Relay: Short Circuit with Power Supply Line...951
D160KA...953
Backup Lamp Relay: Disconnection...953
D160KB...955
Backup Lamp Relay: Short Circuit...955
D191KA...957
Joystick Steering Neutral Safety Relay: Disconnection...957
D191KB...959
Joystick Steering Neutral Safety Relay: Short Circuit...959
D191KY...961
Joystick Steering Neutral Safety Relay: Short Circuit with Power Supply Line...961
D192KA...963
ECSS Solenoid: Disconnection...963
D192KB...965
ECSS Solenoid: Short Circuit...965
D192KY...967
ECSS Solenoid Relay: Short Circuit with Power Supply Line...967
D193KA...969
Joystick Steering Solenoid Cut Relay: Disconnection...969
D193KB...971
Joystick Steering Solenoid Cut Relay: Short Circuit...971
D193KY...973
Joystick Steering Solenoid Cut Relay: Short Circuit with Power Supply Line...973
D5ZHKA...975
Terminal C Signal: Disconnection...975
D5ZHKB...979
Terminal C Signal: Short Circuit...979
D5ZHKZ...983
Terminal C Signal: Disconnection or Short Circuit...983
D5ZHL6...987
Terminal C Signal: Signal Does Not Match Engine Running or Stopped State...987
DA80L4...991
Auto-Grease Controller: ON/OFF Signals Disagree...991
DAF3KK...993
Machine Monitor: Low Source Voltage (input)...993
DAF5KP...995
Machine Monitor: Low Output Voltage...995
DAFRKR...999
Machine Monitor: CAN Defective Communication...999
DAQ0KK...1003
Transmission Controller: Low Source Voltage...1003
DAQ0KT...1005
Transmission Controller: Abnormality in Controller...1005
DAQ2KK...1007
Transmission Controller Load Power Supply Line: Low Source Voltage (input)...1007
DAQ9KQ...1009
Transmission Controller: Disagreement of Model Selection Signals...1009
DAQRKR...1011
CAN Communication with Transmission Controller: Defective Communication...1011
DAQRMA...1014
Transmission Controller Option Setting: Malfunction...1014
DB2RKR...1015
CAN Communication with Engine Controller: Defective Communication...1015
DB90KK...1019
Work Equipment Controller: Low Source Voltage (input)...1019
DB90KT...1021
Work Equipment Controller: Abnormality in Controller...1021
DB92KK...1023
Work Equipment Controller Load Power Supply Line: Low Source Voltage (input)...1023
DD95KX...1025
Work Equipment Controller Power Supply Output: Out-of-Input Signal Range...1025
DB99KQ...1028
Work Equipment Controller: Disagreement in Model Selection Signals...1028
DB9RKR...1029
CAB Communication with Work Equipment Controller: Defective Communication...1029
DB9RMA...1032
Work Equipment Controller Option Setting: Malfunction...1032
DB9RMC...1033
CAN Communication: Defective Operation...1033
DD15LD...1037
Switch (Panel Switch 1 n): Switch is Pressed for Long Time...1037
DD16LD...1039
Switch (Panel Switch 2 ‡): Switch is Pressed for Long Time...1039
DD17LD...1041
Switch (Panel Switch 3 <): Switch is Pressed for Long Time...1041
DD18LD...1043
Switch (Panel Switch 4 >): Switch is Pressed for Long Time...1043
DD1ALD...1045
Remote Positioner Raise/Lower Set Switch (raise): Switch is Pressed for Long Time...1045
DD1BLD...1047
Remote Positioner Raise/Lower Set Switch (lower): Switch is Pressed for Long Time...1047
DD1CLD...1049
Load Meter Subtotal Switch: Switch is Pressed for Long Time...1049
DD1FLD...1051
Load Meter Mode Selector Switch (A/B): Switch is Pressed for Long Time...1051
DD1GLD...1053
Load Meter Mode Selector Switch (+/-): Switch is Pressed for Long Time...1053
DD1HLD...1055
Load Meter Display Selector Switch: Switch is Pressed for Long Time...1055
DD1NLD...1057
Fan Reverse Switch: Switch is Pressed for Long Time...1057
DD1NL4...1059
Fan Automatic Reverse Switch: Switch is Pressed for Long Time...1059
DDB6L4...1061
Parking Brake Switch (Neutralizer): ON/OFF Signals Disagree...1061
DDE5MA...1065
Emergency Steering Drive Switch: Malfunction...1065
DDK3KA...1067
Right FNR Switch: Disconnection...1067
DDK4KA...1070
Joystick Steering FNR Switch: Disconnection...1070
DDK5L4...1073
Joystick Steering Shift UP/DOWN Switch: ON/OFF Signals Disagree...1073
DDK6KA...1075
FNR Lever Switch: Disconnection...1075
DDK6KB...1078
FNR Lever Switch: Short Circuit...1078
DDS5KA...1081
Steering Pressure Switch: Disconnected...1081
DDS5KB...1083
Steering Pressure Switch: Grounded...1083
DDT0L4...1085
Shift Mode Selector Switch: ON/OFF Signals Disagree...1085
DDT4LD...1087
Transmission Cutoff Set Switch: Switch is Pressed for Long Time...1087
DDW9LD...1089
Kickdown Switch: Switch is Pressed for Long Time...1089
DDWLLD...1091
Hold Switch: Switch is Pressed Down for Long Time...1091
DDY0LD...1093
Load Meter Cancel Switch: Switch is Pressed for Long Time...1093
DF10KA...1095
Transmission Shift Lever Switch: Disconnected...1095
DF10KB...1099
Transmission Shift Lever Switch: Short Circuit...1099
DGF1KA...1103
Transmission Oil Temperature Sensor: Disconnected...1103
DGF1KB...1105
Transmission Oil Temperature Sensor: Short Circuit...1105
DGH2KX...1107
Hydraulic Oil Temperature Sensor: Out-of-Input Signal Range...1107
DGR2KA...1109
Rear Brake Oil Temperature Sensor: Disconnected...1109
DGR2KX...1111
Rear Brake Oil Pressure Sensor: Out-of-Input Signal Range...1111
DGT1KX...1113
Torque Converter Oil Temperature Sensor: Out-of-Input Signal Range...1113
DHPCKX...1115
Lift Arm Cylinder Bottom Pressure Sensor: Out-of-Input Signal Range...1115
DHPDKX...1117
Lift Arm Cylinder Head Pressure Sensor: Out-of-Input Signal Range...1117
DHT1KX...1119
Transmission Cutoff Pressure Sensor: Out-of-Input Signal...1119
DHT8KA...1121
Steering Pump Pressure Sensor: Disconnection...1121
DHT8KB...1123
Steering Pump Pressure Sensor: Short Circuit...1123
DK59KA...1125
Lift Arm EPC Lever Potentiometer (Main): Disconnection...1125
DK59KY...1128
Lift Arm EPC Lever Potentiometer (Main): Short Circuit with Power Supply Line...1128
DK59L8...1131
Lift Arm EPC Lever Potentiometer (Main): Analog Signals Disagree...1131
DK5AKA...1135
Lift Arm EPC Lever Potentiometer (Sub): Disconnection...1135
DK5AKY...1138
Lift Arm EPC Lever Potentiometer (Sub): Short Circuit with Power Supply LIne...1138
DK5BKA...1141
Bucket EPC Lever Potentiometer (Main): Disconnection...1141
DK5BKY...1144
Bucket EPC Lever Potentiometer (Main): Short Circuit with Power Supply Line...1144
DK5BL8...1147
Bucket EPC Lever Potentiometer (Main): Analog Signals Disagree...1147
DK5CKA...1150
Bucket EPC Lever Potentiometer (Sub): Disconnection...1150
DK5CKY...1153
Bucket EPC Lever Potentiometer (Sub): Short Circuit with Power Supply Line...1153
DK5FKA...1156
Joystick Steering EPC Lever Potentiometer (Main): Disconnection...1156
DK5FKY...1159
Joystick Steering EPC Lever Potentiometer (Main): Short Circuit with Power Supply Line...1159
DK5GKA...1162
Joystick Steering EPC Lever Potentiometer (Sub): Disconnection...1162
DK5GKY...1165
Joystick Steering EPC Lever Potentiometer (Sub): Short Circuit with Power Supply Line...1165
DK5FL8...1168
Joystick Steering EPC Lever Potentiometer (Main): Analog Signals Disagree...1168
DKA0KA...1171
Lift Arm Angle Sensor: Disconnection...1171
DKA0KY...1175
Lift Arm Angle Sensor: Short Circuit with Power Supply Line...1175
DKA0L0...1177
Lift Arm Angle Sensor: Double Meshing...1177
DLT3KA...1179
Transmission Output Shaft Speed Sensor: Disconnection...1179
DLT3LC...1181
Transmission Output Shaft Speed Sensor: Out-of-Input Signal Range...1181
DT20KB...1183
Transmission Cutoff Indicator Lamp: Short Circuit...1183
DUM1KB...1185
Remote Positioner Raise Set Indicator Lamp: Short Circuit...1185
DUM2KB...1187
Remote Positioner Lower Set Indicator Lamp: Short Circuit...1187
DV00KB...1189
Alarm Buzzer: Short Circuit...1189
DW4PKA...1191
Lift Arm Raise EPC Solenoid: Disconnection...1191
DW4PKB...1193
Lift Arm Raise EPC Solenoid: Short Circuit...1193
DW4PKY...1195
Lift Arm Raise EPC Solenoid: Short Circuit with Power Supply Line...1195
DW4QKA...1197
Lift Arm Lower EPC Solenoid: Disconnection...1197
DW4QKB...1199
Lift Arm Lower EPC Solenoid: Short Circuit...1199
DW4QKY...1201
Lift Arm Lower EPC Solenoid: Short Circuit with Power Supply Line...1201
DW4RKA...1203
Bucket Tilt EPC Solenoid: Disconnection...1203
DW4RKB...1205
Bucket Tilt EPC Solenoid: Short Circuit...1205
DW4RKY...1207
Bucket Tilt EPC Solenoid: Short Circuit with Power Supply Line...1207
DW4SKA...1209
Buck Dump EPC Solenoid: Disconnection...1209
DW4SKB...1211
Bucket Dump EPC Solenoid: Short Circuit...1211
DW4SKY...1213
Bucket Dump EPC Solenoid: Short Circuit with Power Supply Line...1213
DW7BKA...1215
Fan Reverse Solenoid: Disconnection...1215
DW7BKB...1217
Fan Reverse Solenoid: Short Circuit...1217
DW7BKY...1219
Fan Reverse Solenoid: Short Circuit with Power Supply Line...1219
DWM1KA...1221
Work Equipment Neutral Lock Solenoid: Disconnection...1221
DWM1KB...1223
Work Equipment Neutral Lock Solenoid: Short Circuit...1223
DWM1KY...1225
Work Equipment Neutral Lock Solenoid: Short Circuit with Power Supply Line...1225
DWN6KA...1227
Lift Arm Raise Magnet Detent Solenoid: Disconnection...1227
DWN6KB...1229
Lift Arm Raise Magnet Detent Solenoid: Short Circuit...1229
DWN6KY...1231
Lift Arm Raise Magnet Detent Solenoid: Short Circuit with Power Supply Line...1231
DWN7KA...1233
Lift Arm Float Magnet Detent Solenoid: Disconnection...1233
DWN7KB...1235
Lift Arm Float Magnet Detent Solenoid: Short Circuit...1235
DWN7KY...1237
Lift Arm Float Magnet Detent Solenoid: Short Circuit with Power Supply Line...1237
DWN8KA...1239
Bucket Tilt Magnet Detent Solenoid: Disconnection...1239
DWN8KB...1241
Bucket Tilt Magnet Detent Solenoid: Short Circuit...1241
DWN8KY...1243
Bucket Tilt Magnet Detent Solenoid: Shorted with the Power Source...1243
DX16KA...1245
Fan Pump EPC Solenoid: Disconnection...1245
DX16KB...1247
Fan Pump EPC Solenoid: Short Circuit...1247
DX16KY...1249
Fan Pump EPC Solenoid: Short Circuit with Power Supply Line...1249
DXH1KA...1251
Lockup ECMV Solenoid: Disconnection...1251
DXH1KB...1253
Lockup ECMV Solenoid: Short Circuit...1253
DXH1KY...1255
Lockup ECMV Solenoid: Short Circuit with Power Supply Line...1255
DXH4KA...1257
1st Clutch ECMV Solenoid: Disconnection...1257
DXH4KB...1259
1st Clutch ECMV Solenoid: Short Circuit...1259
DXH4KY...1261
1st Clutch ECMV Solenoid: Short Circuit with Power Supply Line...1261
DXH5KA...1263
2nd Clutch ECMV Solenoid: Disconnection...1263
DXH5KB...1265
2nd Clutch ECMV Solenoid: Short Circuit...1265
DXH5KY...1267
2nd Clutch ECMV Solenoid: Short Circuit with Power Supply Line...1267
DXH6KA...1269
3rd Clutch ECMV Solenoid: Disconnection...1269
DXH6KB...1271
3rd Clutch ECMV Solenoid: Short Circuit...1271
DXH6KY...1273
3rd Clutch ECMV Solenoid: Short Circuit with Power Supply Line...1273
DXH7KA...1275
R Clutch ECMV Solenoid: Disconnection...1275
DXH7KB...1277
R Clutch ECMV Solenoid: Short Circuit...1277
DXH7KY...1279
R Clutch ECMV Solenoid: Short Circuit with Power Supply Line...1279
DXH8KA...1281
F Clutch ECMV Solenoid: Disconnection...1281
DXH8KB...1283
F Clutch ECMV Solenoid: Short Circuit...1283
DXH8KY...1285
F Clutch ECMV Solenoid: Short Circuit with Power Supply Line...1285
DXHHKA...1287
4th Clutch ECMV Solenoid: Disconnection...1287
DXHHKB...1289
4th Clutch ECMV Solenoid: Short Circuit...1289
DXHHKY...1291
4th Clutch ECMV Solenoid: Short Circuit with Power Supply Line...1291
DXHLKA...1293
Joystick Steering Right EPC Solenoid: Disconnection...1293
DXHLKB...1295
Joystick Steering Right EPC Solenoid: Short Circuit...1295
DXHLKY...1297
Joystick Steering Right EPC Solenoid: Short Circuit with Power Supply Line...1297
DXHMKA...1299
Joystick Steering Left EPC Solenoid: Disconnection...1299
DXHMKB...1301
Joystick Steering Left EPC Solenoid: Short Circuit...1301
DXHMKY...1303
Joystick Steering Left EPC Solenoid: Short Circuit with Power Supply Line...1303
DY30MA...1305
Motor-Driven Emergency Steering Pump Failure (during Operation of machine)...1305
DY30MC...1308
Motor-Driven Emergency Steering Pump Failure (Malfunction in Manual Mode)...1308
TROUBLESHOOTING: E-MODE...1311
Troubleshooting Electrical System...1311
Information in Troubleshooting Table...1311
E-1...1313
Engine Does Not Start...1313
E-2...1319
Wiper Does Not Operate...1319
E-3...1323
Windshield Washer Does Not Operate...1323
E-4...1327
Headlamp, Clearance Lamp, Tail Lamp, and License Lamp Do Not Light Up or Go Off...1327
E-5...1335
Working Lamp Does Not Light Up or Go Off...1335
E-6...1341
Turn Signal Lamp and Hazard Lamp Do Not Light Up or Go Off...1341
E-7...1347
Brake Lamp Does Not Light or It Keeps Lighting Up...1347
E-8...1350
Backup Lamp Does Not Light or It Keeps Lighting Up...1350
E-9...1353
Backup Buzzer Does Not Sound or It Keeps Sounding...1353
E-10...1356
Horn Does Not Sound or It Keeps Sounding...1356
E-11...1359
Alarm Buzzer Does Not Sound or It Keeps Sounding...1359
E-12...1361
Air Conditioner Does Not Operate or Stop...1361
E-13...1365
KOMTRAX System Does Not Work Properly...1365
Indicator Lamps of KOMTRAX Terminal...1367
E-14...1369
When Kickdown Switch is Turned On, Kickdown Operation Does Not Start...1369
E-15...1371
When Hold Switch is Pressed, Holding Operation Does Not Start...1371
E-16...1373
Transmission Kept in Neutral or Brake Drags when Directional Lever is Operated While Parking Brake is Applied...1373
E-17...1375
Transmission Cutoff Mode Cannot Be Set or Reset...1375
E-18...1377
Transmission Cutoff Set Cannot be Reset...1377
E-19...1379
FNR Switch Mode Cannot Be Set or Reset...1379
E-20...1381
Fan Reverse Function Cannot Be Used or Reset...1381
E-21...1383
Discharge from Loader Pump Does Not Rise from Minimum Level...1383
E-22...1385
ECSS Function Cannot Be Used or Reset...1385
E-23...1387
When Parking Brake is Turned On, Parking Brake Indicator Lamp Does Not Light Up...1387
E-24...1391
When Emergency Brake Operates, Brake Oil Pressure Caution Lamp Does Not Operate...1391
E-25...1393
Air Cleaner Clogging Indicator Lamp Does Not Light Up...1393
E-26...1395
Radiator Coolant Level Caution Lamp Does Not Light Up...1395
E-27...1397
Hydraulic Oil Temperature Gauge Does Not Rise and Hydraulic Oil Temperature Caution Lamp Does Not Light Up...1397
E-28...1399
Torque Converter Oil Temperature Gauge Does Not Rise and Torque Converter Oil Temperature Caution Lamp Does Not Light Up...1399
E-29...1401
Steering Oil Pressure Caution Lamp Does Not Light Up...1401
E-30...1403
Abnormality in Switch (n) (Panel Switch 1) Input...1403
E-31...1405
Abnormality in Switch (‡) (Panel Switch 2) Input...1405
E-32...1407
Abnormality in Switch (<) (Panel Switch 3) Input...1407
E-33...1409
Abnormality in Switch (>) (Panel Switch 4) Input...1409
TROUBLESHOOTING: H-MODE...1411
Troubleshooting Hydraulic and Mechanical Systems...1411
Using Troubleshooting Chart...1411
Failure Codes and Causes Table...1413
H-1...1417
Machine Does Not Start...1417
H-2...1419
Torque Converter Lockup is Not Switched OFF (Engine Stalls)...1419
H-3...1420
Torque Converter Lockup is Not Switched ON...1420
H-4...1421
Travel Speed is Slow, Thrusting Force is Weak, Uphill Traveling Power is Weak, Gear is Not Shifted...1421
H-5...1425
Large Shocks When Starting and Shifting Gears...1425
H-6...1429
Large Time Lag When Starting and Shifting Gear...1429
H-7...1433
Torque Converter Oil Temperature is High...1433
H-8...1434
Steering Does Not Turn...1434
H-9...1435
Steering Does Not Turn (Joystick Steering, if equipped)...1435
H-10...1436
Steering Response is Poor...1436
H-11...1437
Steering, Turning Response is Poor (Joystick Steering, if Equipped)...1437
H-12...1438
Steering is Heavy...1438
H-13...1439
When Machine Turns, It Shakes or Jerks...1439
H-14...1440
When Machine Turns, It Shakes or Jerks (Joystick Steering, if Equipped)...1440
H-15...1441
Wheel Brake Does Not Work or Does Not Work Well...1441
H-16...1442
Wheel Brake is Not Released or It Drags...1442
H-17...1443
Parking Brake Does Not Work or Does Not Work Well...1443
H-18...1444
Parking Brake is Not Released or It Drags...1444
H-19...1445
Lift Arm Does Not Rise...1445
H-20...1446
Lift Arm Speed is Low or Rising Force is Insufficient...1446
H-21...1447
When Rising, Lift Arm Starts to Move Slowly at a Specific Height...1447
H-22...1447
Lift Arm Cylinder Cannot Hold Down Bucket (Bucket Floats)...1447
H-23...1447
Hydraulic Drifts of the Lift Arm Are Large...1447
H-24...1448
Lift Arm Wobbles During Operation...1448
H-25...1449
Bucket Does Not Tilt Back...1449
H-26...1450
Bucket Speed is Low or Tilting-Back Force Is Insufficient...1450
H-27...1451
Bucket Starts to Operate Slowly in the Midst of Tilting Back...1451
H-28...1451
Bucket Cylinder Cannot Hold Down the Bucket...1451
H-29...1451
Hydraulic Drifts of the Bucket Are Large...1451
H-30...1452
Bucket Wobbles During Travel with Load...1452
H-31...1453
Lift Arm and Bucket Control Levers Do Not Move Smoothly and Are Heavy...1453
H-32...1454
During Operation of Machine, Engine Speed Drops Remarkably or Engine Stalls...1454
H-33...1454
Large Shocks When Work Equipment Starts and Stops...1454
H-34...1454
When Work Equipment Circuit is Relieved Singly, Other Work Equipment Moves...1454
H-35...1455
ECSS Does Not Operate; Pitching and Bouncing Occur...1455
50 DISASSEMBLY AND ASSEMBLY...1456
HOW TO READ THIS MANUAL...1460
Removal and Installation of Assemblies...1460
Disassembly and Assembly of Assemblies...1462
COATING MATERIALS LIST...1464
SPECIAL TOOLS LIST...1467
SKETCHES OF SPECIAL TOOLS...1470
CONNECTOR REPAIR PROCEDURES...1476
Stripping Insulation...1476
Wire Inspection...1476
Contact Terminal Removal (HD30 Type)...1477
Crimping Contact Terminal (HD30 Type)...1478
Insertion Of Contact Terminal (HD30 Type)...1479
Contact Terminal Removal (DT Type)...1480
Crimping Contact Terminal (DT Type)...1481
Insertion Of Contact Terminal (DT Type)...1482
ENGINE AND COOLING SYSTEM...1483
Alternator...1483
Crankshaft...1483
Camshaft...1483
Engine Front Seal...1483
Engine Oil Cooler...1483
Engine Rear Seal...1483
Starting Motor...1483
Thermostat...1483
Turbocharger...1483
Water Pump...1483
Cylinder Head...1484
Removal...1484
Installation...1490
Engine Hood...1497
Removal...1497
Installation...1499
Radiator...1500
Removal...1500
Installation...1501
Air Aftercooler...1502
Removal...1502
Installation...1503
Hydraulic Oil Cooler...1504
Removal...1504
Installation...1505
Engine...1506
Removal...1506
Installation...1511
Cooling Fan and Fan Motor...1513
Removal...1513
Installation...1516
FUEL SUPPLY SYSTEM...1517
Fuel Supply Pump...1517
Removal...1517
Installation...1518
Fuel Injector...1519
Removal...1519
Installation...1522
Fuel Tank...1527
Removal...1527
Installation...1529
POWER TRAIN...1530
Torque Converter and Transmission Assembly...1530
Removal...1530
Installation...1537
Torque Converter (Standard Specification)...1538
Disassembly...1538
Assembly...1541
Torque Converter (Lockup Specification)...1544
Disassembly...1544
Assembly...1547
Transmission...1552
Disassembly...1552
Assembly...1562
Clutch Pack...1573
Forward and Reverse Clutch Pack: Disassembly...1573
1st and 4th Clutch Pack: Disassembly...1577
2nd and 3rd Gear Clutch Pack: Disassembly...1580
Forward and Reverse Clutch Pack: Assembly...1586
1st and 4th Clutch Pack: Assembly...1590
2nd and 3rd Clutch Pack: Assembly...1594
Parking Brake...1599
Disassembly...1599
Assembly...1604
Front Axle...1611
Removal...1611
Installation...1612
Rear Axle...1613
Removal...1613
Installation...1616
Axle Housing...1618
Disassembly...1618
Assembly...1623
Differential Assembly...1630
Disassembly...1630
Assembly...1639
STEERING SYSTEM...1655
Steering Valve Assembly...1655
Removal...1655
Installation...1657
BRAKING SYSTEM...1658
Parking Brake Discs and Plates...1658
Removal...1658
Installation...1660
UNDERCARRAGE AND FRAME...1661
Center Hinge Pin...1661
Removal...1661
Installation...1666
Counterweight...1671
Removal...1671
Installation...1673
HYDRAULIC SYSTEM...1674
Work Equipment Control Valve...1674
Removal...1674
Installation...1676
Power Train Pump and Work Equipment Pump Assembly...1677
Removal...1677
Installation...1677
Steering Pump And Cooling Fan Pump Assembly...1678
Removal...1678
Installation...1679
Hydraulic Tank...1680
Removal...1680
Installation...1683
WORK EQUIPMENT...1684
Work Equipment Assembly...1684
Removal...1684
Installation...1687
Hydraulic Cylinder...1689
Disassembly...1689
Assembly...1693
CAB AND ATTACHMENTS...1698
Cab and Floor Frame...1698
Removal...1698
Installation...1701
Cab Glass (Stuck Glass)...1702
Removal...1702
Installation...1703
Operator Seat Assembly (Standard Specification) (ISRING HAUSEN)...1711
Disassembly...1711
Assembly...1718
Operator Seat Assembly (GRAMMER)...1723
Upper Seat...1723
Suspension...1731
AIR CONDITIONER UNIT ASSEMBLY...1759
Removal...1759
Installation...1763
ELECTRICAL SYSTEM...1764
Engine Controller Assembly...1764
Removal...1764
Installation...1764
90 DIAGRAMS AND SCHEMATICS...1766
AUTOMATIC GREASING...1768
Auto-Grease Circuit Diagram...1768
HYDRAULIC SYSTEM...1769
Power Train Hydraulic Circuit Diagram...1769
Without Lockup Clutch...1769
With Lockup Clutch...1769
Hydraulic Circuit Diagram...1770
ELECTRICAL SYSTEM...1771
Machine Monitor System Circuit Diagram...1771
Transmission Controller System Circuit Diagram...1772
Work Equipment Controller System Circuit Diagram...1773
Work Equipment Controller System Electrical Circuit Diagram...1774
Electrical Circuit Diagram (1/14)...1775
Electrical Circuit Diagram (2/14)...1776
Electrical Circuit Diagram (3/14)...1777
Electrical Circuit Diagram (4/14)...1778
Electrical Circuit Diagram (5/14)...1779
Electrical Circuit Diagram (6/14)...1780
Electrical Circuit Diagram (7/14)...1781
Electrical Circuit Diagram (8/14)...1782
Electrical Circuit Diagram (9/14)...1783
Electrical Circuit Diagram (10/14)...1784
Electrical Circuit Diagram (11/14)...1785
Electrical Circuit Diagram (12/14)...1786
Electrical Circuit Diagram (13/14)...1787
Electrical Circuit Diagram (14/14)...1788
Connector List and Stereogram...1789
Chassis...1789
Engine and Transmission...1790
Operator’s Compartment...1791
CEBM017403 - Wheel Loader WA380-6 Shop Manual...1792
CEBM017403 - WA380-6 sn A53001 and UP...0
CONTENTS...1793
REVISED PAGES...1794
SAFETY...1808
Safety Notice...1808
IMPORTANT SAFETY NOTICE...1808
General Precautions...1808
Preparations for Work...1809
Precautions During Work...1809
GENERAL...1810
HOW TO READ THE SHOP MANUAL...1811
Volumes...1811
Distribution and Updating...1811
Filing Method...1811
Revised Edition Mark...1811
Revisions...1811
Symbols...1811
HOISTING INSTRUCTIONS...1812
Hoisting...1812
Making Signs...1812
Precautions...1812
Precautions for Sling Work...1812
Precautions for Using Mobile Crane...1813
Precautions for Using Overhead Hoist Crane...1813
Selecting Wire Ropes...1814
AIR CONDITIONER CIRCUITS...1815
Precautions for Handling Hoses and Tubes...1815
Disconnecting Hoses and Tubes...1815
Connecting Hoses and Tubes...1815
MAINTENANCE STANDARD TERMS...1816
Handling Connectors Used for Engines...1818
Slide Lock Type...1818
Pull Lock Type...1819
Push Lock Type...1819
Turn-housing Type (Round Green Connector)...1821
PRECAUTIONS FOR OPERATIONS...1822
Precautions when Carrying Out Removal Work...1822
Precautions when Carrying Out Installation Work...1823
Precautions when Completing the Operation...1824
PUSH-PULL COUPLER...1825
Type 1...1825
Disconnection...1825
Connection...1825
Type 2...1826
Disconnection...1826
Connection...1826
Type 3...1827
Disconnection...1827
Connection...1827
COATING MATERIALS...1828
STANDARD TIGHTENING TORQUE...1830
Standard Tightening Tables...1830
For Bolts and Nuts...1830
For Split Flange Bolts...1831
For O-Ring Boss Piping Joints...1831
For O-Ring Boss Plugs...1832
For Hoses (Taper-Seal Type and Face-Seal Type)...1832
For Face Seal Joints...1833
For 102, 107, and 114 Engine Series (Bolts and Nuts)...1833
For 102, 107, and 114 Engine Series (Eye Joints)...1833
For 102, 107, and 114 Engine Series (Taper Screws)...1834
CONVERSION TABLES...1835
Method of Using the Conversion Table...1835
01 GENERAL...1842
SPECIFICATIONS...1844
Dimension Drawing...1844
Specification Tables...1846
WEIGHT TABLE...1851
FUEL, COOLANT, AND LUBRICANTS...1853
10 STRUCTURE, FUNCTION ANDMAINTENANCE STANDARD...1856
ENGINE AND COOLING SYSTEM...1861
Engine and Transmission Mounting...1861
Cooling System...1863
Cooling Fan Pump...1865
Servo Valve...1870
Cooling Fan Motor System...1873
Hydraulic Motor...1876
Suction Valve...1879
Reversible Valve...1877
Safety Valve...1878
POWER TRAIN SYSTEM...1880
Drive Line Components...1880
System Diagram...1881
Drive Shaft System...1883
Power Train Piping System...1884
Torque Converter...1885
Without Lockup Clutch...1885
Power Transmitting Route...1887
Oil Flow...1887
With Lockup Clutch...1888
Torque Flow...1891
When Lockup Clutch Is Disengaged...1891
When Lockup Clutch Is Engaged...1891
Oil Flow...1892
Transmission...1893
With Lockup Clutch...1893
Forward and Reverse Clutches...1903
Without Lockup Clutch...1903
With Lockup Clutch...1904
1st and 4th Clutches...1905
2nd and 3rd Clutches...1906
Operation of Clutch Pack...1907
Transmission Torque Flow Route...1909
Forward 1st Gear Speed...1909
Forward 2nd Gear Speed...1911
Forward 3rd Gear Speed...1913
Forward 4th Gear Speed...1915
Reverse 1st Gear Speed...1917
Flow Control Valve...1919
Valve Assembly...1921
ECMV System...1923
For R, 1st, and 2nd Clutches...1923
For F, 3rd, 4th, and Lockup Clutches...1925
ECMV For Gear Speed Clutch...1927
ECMV for Lockup Clutch...1930
Main and Torque Converter Relief Valve System...1933
Outline...1935
Operation...1935
DRIVE AXLE SYSTEM...1936
Front Axle Assembly...1936
Rear Axle Assembly...1937
Front Differential...1939
Rear Differential...1941
Limited Slip Differential...1944
Front Axle Carrier...1945
Rear Axle Carrier...1947
Final Drive...1951
STEERING SYSTEM...1953
Steering Piping Diagram...1953
Steering Column...1954
Steering Pump...1955
Pump Unit...1957
Servo Valve...1962
LS Valve...1965
PC Valve...1965
Steering Valve...1969
Operation of Flow Amplifier...1973
Operation of Flow Control Spool...1975
Operation of Steering Valve...1977
Steering Relief Valve...1980
Overload Relief Valve...1981
Relief Valve...1982
Orbitrol Valve...1983
Stop Valve...1987
Steering Relief Valve...1988
Steering Cylinder...1989
Emergency Steering Motor...1991
Emergency Steering Pump (If Equipped)...1992
Joystick Steering Lever Linkage...1993
Steering Electric Lever...1994
Joystick EPC Valve...1995
Multi-Function Lever and Joystick Lever (Modification)...1996
SERVICE BRAKING SYSTEM...1998
Brake Piping Diagram...1998
Charge Valve...1999
Brake Valve...2007
Accumulator (for Brakes)...2012
Front Brake...2013
Rear Brake...2015
PARKING BRAKE SYSTEM...2017
Brake Control...2017
Parking Brake Unit...2019
Parking Brake Solenoid Valve...2021
Emergency Parking Brake Release Valve...2023
UNDERCARRIAGE AND FRAME...2024
Axle Mounting and Center Hinge Pin...2024
Tires...2029
HYDRAULIC SYSTEM...2031
Piping Diagram...2031
Work Equipment Control Lever System...2034
Multi-Function Mono-Lever Type...2035
Hydraulic Tank...2037
Tank Vent System...2038
Power Train Pump...2039
Work Equipment Pump...2041
Pump Unit...2043
Servo Valve...2045
LS Valve...2051
PC valve...2052
Work Equipment Control Valve...2055
4-Spool Valve...2057
CLSS...2073
Outline of CLSS...2073
Basic Principle...2074
Pressure Compensation Control...2075
Function and Operation of Each Valve...2076
Unload Valve...2077
Work Equipment Valve (Supply of LS Pressure)...2080
LS Bypass Plug...2082
Pressure Compensation Valve...2083
Lift Arm Regeneration Circuit...2087
Variable Lift Check Valve...2089
ECSS Control Valve...2090
Accumulator Charge Valve...2093
PPC Valve...2097
Stabilizer Valve...2102
Work Equipment PPC Cutoff Solenoid Valve...2107
Accumulator (for PPC Circuit)...2109
Accumulator (for ECSS)...2110
WORK EQUIPMENT...2111
Work Equipment Linkage...2111
Bucket...2113
Bucket Positioner and Boom Kickout...2115
Bucket Positioner...2116
Boom Kick-out...2116
Proximity Switch...2117
Work Equipment Cylinders...2123
Lift Cylinder...2123
Bucket Cylinder...2123
CAB ENVIRONMENT...2124
ROPS Cab...2124
Air Conditioner...2125
Air Conditioner Piping Diagram...2125
Refrigerant Circuit Diagram...2127
Air Conditioner Unit...2128
Blower and Intake Unit...2131
Refrigerant Compressor...2132
Condenser...2133
Receiver...2134
Air Conditioner Panel...2135
ELECTRICAL SYSTEM...2139
Machine Monitor System...2139
System Circuit Diagram...2141
Machine Monitor...2142
Items Displayed on Monitor...2143
Machine Monitor Operation Switches...2152
Setting Machine Monitor...2153
Troubleshooting Function...2153
Character Display Function...2154
Operator Mode Functions...2155
Service Mode Functions...2158
Input and Output Signals...2163
Transmission Controller System...2171
Gearshifting Control Function...2171
Cooling Fan Control Function...2190
Work Equipment Pump Swash Plate Control Function...2195
Transmission Cutoff Function...2197
ECSS Function...2199
Electric Emergency Steering Function...2201
Directional Selector Switch Control Function...2203
Multi-Function Mono Lever Function...2205
Joystick Steering Function...2207
System Circuit Diagram...2210
Transmission Controller...2211
Work Equipment Controller System...2213
System Circuit Diagram...2215
Work Equipment Controller...2217
ELECTRONIC TRANSMISSION CONTROL...2219
Combination Switch...2221
KICKDOWN AND HOLD SWITCH...2223
Load Meter Cancel Switch and Load Meter Subtotal Switch...2223
MULTI-FUNCTION KNOB...2224
Modification of Multi-Function Lever...2225
JOYSTICK STEERING KNOB...2227
KOMTRAX TERMINAL SYSTEM...2228
KOMTRAX Terminal...2229
Input and Output Signals...2230
ENGINE STARTING CIRCUIT...2231
ENGINE STOPPING CIRCUIT...2233
PREHEATING CIRCUIT...2234
ENGINE POWER MODE SELECTOR CIRCUIT...2235
ENGINE OUTPUT DERATING FUNCTION...2236
AUTOMATIC WARM-UP FUNCTION...2236
PARKING BRAKE CIRCUIT...2237
SENSORS...2239
Speed Sensor...2239
Torque Converter Oil Temperature Sensor...2240
Hydraulic Oil Temperature Sensor...2240
Transmission Oil Temperature Sensor...2240
Brake Oil Temperature Sensor...2240
Work Equipment Pump Oil Pressure Sensor...2241
Steering Pump Oil Pressure Sensor...2241
Lift Cylinder Head Oil Pressure Sensor...2241
Lift Cylinder Bottom Oil Pressure Sensor...2241
Transmission Cutoff Oil Pressure Sensor...2242
Coolant Lever Sensor...2243
Fuel Level Sensor...2244
Air Cleaner Clogging Sensor...2245
Accelerator Pedal Sensor...2246
Water-In-Fuel Sensor...2247
Boom Kickout Proximity Switch...2248
Bucket Positioner Proximity Switch...2248
Lift Arm Potentiometer...2249
20 STANDARD VALUE TABLES...2250
STANDARD VALUE TABLES...2251
Service Value For Engine...2251
Service Values For Chassis...2252
POSTURE AND PERFORMANCE MEASUREMENTS...2254
Machine Posture...2259
30 TESTING AND ADJUSTING...2262
TOOLS...2267
Tools for Testing, Adjusting, and Troubleshooting...2267
ENGINE COMPONENTS...2273
Engine Speed...2273
Measure Engine Speed (Low and High Idle)...2273
Measure Torque Converter Stall Speed...2273
Measure Hydraulic Stall Speed...2274
Measure Torque Converter Stall and Hydraulic Stall (Full Stall) Speed...2274
Exhaust Gas Color...2275
Using Handy Smoke Checker A1...2275
Using Smoke Meter A2...2275
Valve Clearance...2277
Engine Compression...2279
Blow-by Pressure...2283
Engine Oil Pressure...2285
Intake Air (Boost) Pressure...2286
Determining a Defective Cylinder...2288
Procedures...2288
Determining Cylinder Group...2288
Isolating the Defective Cylinder...2288
FUEL SYSTEM...2289
Handling Fuel System Equipment...2289
Releasing Residual Pressure in Fuel System...2289
Measuring Fuel Pressure...2290
Measuring Pressure in Fuel Low-pressure Circuit...2290
Measuring Pressure in Fuel Return Circuit...2291
Measuring Fuel Negative-Pressure Circuit Pressure...2292
Fuel Delivery, Return, and Leak Rate...2293
Measuring Supply Pump Delivery...2293
Measuring Return Rate from Supply Pump...2294
Measuring Leakage from Pressure Limiter...2295
Measuring Return Rate from Injector...2296
Bleeding Air from Fuel Circuit...2297
Testing Leakage in Fuel System...2298
Handling Reduced Cylinder Mode Operation...2299
Handling No-Injection Cranking Operation...2299
Handling Controller Voltage Circuit...2299
EXHAUST SYSTEM AND PIPING...2300
Checking Muffler and Muffler Stack for Looseness and Damage...2300
Checking Muffler Function...2300
Checking Installed Condition of Cylinder Head and Manifolds...2300
Checking Engine Piping for Damage and Looseness...2300
BELTS...2301
Air Conditioner Compressor Belt...2301
Alternator Belt...2302
DIRECTIONAL LEVER...2304
Checking Operating Effort...2304
Checking Stroke...2304
POWER TRAIN OIL PRESSURES...2305
Oil Pressure Measuring Points And Gauges...2307
Measuring Transmission Hydraulic Operating Pressures...2308
Transmission Main Relief Pressure...2308
Torque Converter Relief Pressure (Inlet)...2309
Torque Converter Outlet Pressure...2310
Lockup Clutch Pressure (Lockup Clutch Specification)...2311
F (Forward) Clutch Pressure...2312
R (Reverse) Clutch Pressure...2313
1st Clutch Pressure...2314
2nd Clutch Pressure...2315
3rd Clutch Pressure...2316
4th Clutch Pressure...2317
Lubrication Pressure...2318
Adjusting Power Train Oil Pressures...2319
Transmission Main Relief Valve...2319
TRANSMISSION...2320
Speed Sensor...2320
Flushing Transmission System...2321
Torque Converter, Transmission, and Hydraulic Circuit...2321
Moving the Machine if Transmission Valve Fails...2323
STEERING SYSTEM...2327
Steering Stop Valve...2327
Testing...2327
Adjusting...2327
Steering Wheel...2329
Measuring Play in Steering Wheel...2329
Measuring Operating Effort of Steering Wheel...2329
Measuring Operating Time of Steering Wheel...2330
Steering Oil Pressure...2331
Measuring Steering Relief Pressure...2331
Measuring Steering Pilot Circuit Pressure...2332
Adjusting Steering Relief Pressure...2333
Adjusting Steering Control Circuit Pressure...2333
Bleeding Air from Steering Circuit...2334
Bleeding Air from Steering Pump...2334
Bleeding Air from Steering Cylinder Circuit...2334
Steering Column Lock Lever...2335
HYDRAULIC DRIVE FAN...2337
Measuring Fan Speed...2337
Measuring Fan Drive Oil Pressure...2338
Bleeding Air from Hydraulic Drive Fan Circuit...2339
Bleeding Air From Fan Pump...2339
Bleeding Air from Fan Motor Circuit...2340
WHEEL BRAKE SYSTEM...2341
Measuring Pressing Angle of Brake Pedal...2341
Measuring Brake Performance...2342
Accumulator Charge...2343
Measuring...2343
Adjusting...2344
Measuring Brake Oil Pressure...2345
Testing Wear of Wheel Brake Disc...2347
Bleeding Air from Brake Circuit...2348
Releasing Residual Pressure in Brake Accumulator Circuit...2348
PARKING BRAKE SYSTEM...2349
Testing Parking Brake Performance...2349
Measuring Parking Brake Oil Pressure...2351
Checking Wear of Parking Brake Disc...2353
Releasing Parking Brake Manually...2354
WORK EQUIPMENT SYSTEM...2355
Work Equipment Control Levers...2355
Measuring Operating Effort...2355
Measuring Stroke...2355
PPC Oil Pressure...2356
Measuring PPC Valve Basic Pressure...2356
Measuring PPC Valve Output Pressure...2357
Replacing PPC Relief Valve...2358
Work Equipment Hydraulic Pressure...2359
Measuring Work Equipment Relief Pressure...2360
Measuring Unload Pressure...2361
Measuring Work Equipment LS Differential Pressure...2362
Adjusting Work Equipment Relief Pressure...2363
Adjusting LS Differential Pressure...2363
Bleeding Air from Work Equipment Circuit...2364
From Work Equipment Pump (Piston Pump)...2364
From Hydraulic Cylinder...2364
Releasing Residual Pressure in Work Equipment Circuit...2365
From Circuit Between Hydraulic Cylinders and Control Valve...2365
From ECSS (Travel Damper) Circuit...2365
Work Equipment Positioners...2366
Bucket Positioner...2366
Boom Kickout...2367
Proximity Switch Operation Pilot Lamp...2368
ELECTRICAL SYSTEM TROUBLESHOOTING...2369
Procedure for Testing Diodes...2369
When Using Digital Type Circuit Tester...2369
When Using Analog Type Circuit Tester...2370
Preparation for Troubleshooting Electric System...2371
Machine Monitor...2371
Transmission Controller...2372
Work Equipment Controller...2373
KOMTRAX Terminal...2373
Sensors...2374
Boost Pressure and Temperature Sensor (BOOST PRESS & IMT)...2374
Supply Pump IMV Solenoid (FUEL REGULATOR)...2374
Common Rail Pressure Sensor (FUEL RAIL PRESS)...2375
Engine Coolant Temperature Sensor (COOLANT TEMP)...2375
KOMTRAX TERMINAL SYSTEM...2376
Terminal Installed at Plant Before Shipment...2376
Terminal Retrofitted Machine After Shipment...2376
Starting Operation...2376
Application for the Start of Use...2379
Komtrax Terminal Lamps...2381
Display Contents of 7-segment And Dot For CPU...2383
MACHINE MONITOR SYSTEM...2384
Adjusting Machine Monitor...2384
Adjusting for Replaced, Reassembled, or Added Sensor/Controller...2385
Adjustment for User’s Needs...2386
Special Functions of Machine Monitor (EMMS)...2387
Normal and Special Functions of Machine Monitor...2387
Functions and Flow of Service Mode...2388
Operator Mode...2391
Service Meter/Clock Display Function (1)...2391
Load Meter Function (2) (if equipped)...2391
Odometer Display Function (3)...2391
Maintenance Monitoring Function (4)...2392
Telephone Number Input Function (5)...2392
Language Selection Function (6)...2392
Monitor Brightness Adjustment Function (7)...2392
Time Adjustment Function (8)...2393
Travel Speed/Engine Speed Display Selecting Function (9)...2393
Travel Speed/Engine Speed Display/Non-Display Selecting Function (10)...2393
Action Code Display Function (11)...2394
Failure Code Display Function (12)...2394
Service Mode...2396
Switching to Service Mode and Screen Display (1)...2396
Electrical System Fault History Display Function (ELECTRIC FAULT) (2)...2398
Mechanical System Fault History Display Function (MACHINE FAULT) (3)...2400
Real-Time Monitoring Function (REAL-TIME MONITOR) (4)...2401
Real-Time Monitoring Code Tables...2404
Engine Reduced-Cylinder Function (CYLINDER CUT-OUT) (5)...2431
No-Injection Cranking Function (6)...2432
Adjustment Function (TUNING) (7)...2433
Maintenance Monitoring Function (8)...2450
Operating Information Display Function (OPERATION INFO) (9)...2456
Optional Device Selecting Function (10)...2459
Machine Serial Number Input Function (11)...2463
Model Select Function (12)...2463
Initialize Function (13)...2464
PM-CLINIC INSPECTION TABLE...2465
40 TROUBLESHOOTING...2470
POINTS TO REMEMBER WHEN TROUBLESHOOTING...2485
SEQUENCE OF EVENTS IN TROUBLESHOOTING...2487
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE...2488
Precautions when Handling Electrical Equipment...2488
Handling Electronic Control Unit...2493
Points to Remember when Troubleshooting Electrical Circuits...2494
ELECTRIC WIRE CODE...2495
Classification by Thickness...2495
Classification by Color and Code...2495
How to Read Electric Wire Code...2496
Type, Symbol, and Material...2496
Dimensions...2497
HANDLING HYDRAULIC EQUIPMENT...2498
CHECKS BEFORE TROUBLESHOOTING...2500
Categories and Method of Using Troubleshooting Charts...2501
Troubleshooting Individual Electrical Circuits...2502
Chart Use...2504
Chart Tips...2504
Troubleshooting Individual Hydraulic Circuits...2505
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS...2507
X-Type Connectors...2507
SWP-Type Connectors...2509
M-Type Connectors...2511
S-Type Connectors...2513
MIC-Type Connectors...2515
AMP040-Type Connectors...2517
AMP070-Type Connectors...2519
AMP Connector...2521
L-Type Connector...2521
PA-Type Connector...2522
Bendix (MS) Connector...2522
KES1 (Automobile) Connectors...2523
F-Type Connector...2524
Connectors for Relay (Socket-Type)...2525
HD30 Series Connectors...2526
DT Series Connectors...2532
DTM Series Connectors...2534
DTHD Series Connectors...2534
DTP Series Connectors...2535
DRC26 Series Connectors...2536
DRC12, 16 Series Connectors...2538
AMP Connectors for Pump Controller (CH700)...2539
BOSCH Connectors for Engine...2540
SUMITOMO Connectors for Engine...2541
CANNON Connector for Engine...2542
AMP Connectors for Engine...2543
FRAMATOME Connectors for Engine...2544
PACKARD Connectors for Engine...2546
DT Series Connectors for Engine...2547
T-BRANCH BOX and T-BRANCH ADAPTER TABLE...2548
MODE CHART...2553
INFORMATION CONTAINED IN TESTING PROCEDURES...2556
TROUBLESHOOTING BY FAILURE CODE...2558
Failure Code Table...2558
FUSE BOX AND SLOW-BLOW FUSES...2569
Connection Table...2569
Fuse Box 1...2569
Fuse Box 2...2570
Slow-Blow Fuses...2570
FAILURE CODES...2572
1500L0...2572
TORQFLOW Transmission: Double Meshing...2572
15SAL1...2573
ECMV F Clutch: When Command Current is OFF, Fill Signal is ON...2573
15SALH...2575
ECMV F Clutch: When Command Current is ON, Fill Signal is OFF...2575
15SBL1...2577
ECMV R Clutch: When Command Current is OFF, Fill Signal is ON...2577
15SBLH...2579
ECMV R Clutch: When Command Current is ON, Fill Signal is OFF...2579
15SEL1...2581
ECMV 1st Clutch: When Command Current is OFF, Fill Signal is ON...2581
15SELH...2583
ECMV 1st Clutch: When Command Current is ON, Fill Signal is OFF...2583
15SFL1...2585
ECMV 2nd Clutch: When Command Current is OFF, FIll Signal is ON...2585
15SFLH...2587
ECMV 2nd Clutch: When Command Current is ON, Fill Signal is OFF...2587
15SGL1...2589
ECMV 3rd Clutch: When Command Current is OFF, Fill Signal is ON...2589
15GLH...2591
ECMV 3rd Clutch: When Command Current is ON, Fill Signal is OFF...2591
15SHL1...2593
ECMV 4th Clutch: When Command Current is OFF, Fill Signal is ON...2593
15SHLH...2595
ECMV 4th Clutch: When Command Current is ON, Fill Signal is OFF...2595
2F00MA...2597
Parking Brake: Malfunction...2597
2G43ZG...2599
Rear Accumulator: Low Oil Pressure...2599
44K0L4...2601
Bucket Positioner: ON/OFF Signals Disagree...2601
AA1ANX...2605
Air Cleaner: Clogging...2605
AB00L6...2607
Alternator: Signal Disagrees with Operating State of Engine...2607
AB00MA...2609
Alternator: Malfunction...2609
B@BAZG...2611
Engine: Rotation Derating by Low Engine Oil Pressure...2611
B@BAZK...2612
Engine Oil: Low Level...2612
B@BCNS...2613
Engine Coolant: Overheating...2613
B@BCZK...2615
Engine Coolant: Low Level...2615
B@BEBF...2617
Water in Fuel Error...2617
B@C7NS...2619
Brake Oil: Overheating...2619
b@CENS...2621
Torque Converter Oil: Overheating...2621
B@CENS...2623
Torque Converter Oil: Overheating...2623
B@HANS...2625
Hydraulic Oil: Overheating...2625
CA111...2627
Abnormality in Engine Controller...2627
CA115...2628
Engine Ne or Bkup Speed Sensor Error...2628
CA122...2629
Charge Pressure Sensor High Error...2629
CA123...2631
Charge Pressure Sensor Low Error...2631
CA131...2633
Throttle Sensor High Error...2633
CA132...2635
Throttle Sensor Low Error...2635
CA144...2637
Coolant Temperature Sensor High Error...2637
CA145...2639
Coolant Temperature Sensor Low Error...2639
CA153...2641
Charge Temperature Sensor High Error...2641
CA154...2643
Charge Temperature Sensor Low Error...2643
CA155...2645
Derating of Speed by Abnormally High Charge Temperature...2645
CA187...2647
Sensor Power Supply 2 Low Error...2647
CA221...2649
Atmospheric Pressure Sensor High Error...2649
CA222...2651
Atmospheric Pressure Sensor Low Error...2651
CA227...2653
Sensor Power Supply 2 High Error...2653
CA234...2655
Engine Overspeed...2655
CA238...2656
Ne Speed Sensor Power Supply Error...2656
CA271...2657
IMV/PCV1 Short Circuit...2657
CA272...2659
IMV/PCV1 Disconnection...2659
CA322...2661
Injector #1 Open/Short Error...2661
CA323...2663
Injector #5 Open/Short Error...2663
CA324...2665
Injector #3 Open/Short Error...2665
CA325...2667
Injector #6 Open/Short Error...2667
CA331...2669
Injector #2 Open/Short Error...2669
CA332...2671
Injector #4 Open/Short Error...2671
CA342...2673
Calibration Code Inconsistency...2673
CA351...2675
Injectors Drive Circuit Error...2675
CA352...2677
Sensor Power Supply 1 Low Error...2677
CA386...2679
Sensor Power Supply 1 High Error...2679
CA428...2681
Abnormally High Level in Water Sensor...2681
CA429...2683
Abnormally Low Level in Water Sensor...2683
CA431...2685
Idle Validation Switch Error...2685
CA432...2689
Idle Validation Action Error...2689
CA435...2693
Engine Oil Pressure Switch Error...2693
CA441...2695
Battery Voltage Low Error...2695
CA442...2699
Battery Voltage High Error...2699
CA449...2701
Common Rail Pressure High Error 2...2701
CA451...2705
Common Rail Pressure Sensor High Error...2705
CA452...2707
Common Rail Pressure Sensor Low Error...2707
CA488...2709
Derating of Torque by Abnormally High Charge Temperature...2709
CA553...2710
Common Rail Pressure High Error 1...2710
CA559...2711
Supply Pump Pressure Very Low Error 1...2711
CA689...2713
Engine Ne Speed Sensor Error...2713
CA731...2715
Engine Bkup Speed Sensor Phase Error...2715
CA757...2716
All Continuous Data Lost Error...2716
CA778...2719
Engine Bkup Speed Sensor Error...2719
CA1633...2721
KOMNET Datalink Timeout Error...2721
CA2185...2723
Throttle Sensor Power Supply Voltage High Error...2723
CA2186...2725
Throttle Sensor Power Supply Voltage Low Error...2725
CA2249...2727
Supply Pump Pressure Very Low Error 2...2727
CA2311...2729
Abnormality in IMV Solenoid...2729
CA2555...2731
Intake Heater Relay Disconnection Error...2731
CA2556...2733
Intake Heater Relay Short Circuit Error...2733
D150KA...2735
Emergency Steering Relay: Disconnection...2735
D150KB...2737
Emergency Steering Relay: Short Circuit...2737
D150KY...2739
Emergency Steering Relay: Short Circuit with Power Supply Line...2739
D160KA...2741
Backup Lamp Relay: Disconnection...2741
D160KB...2743
Backup Lamp Relay: Short Circuit...2743
D191KA...2745
Joystick Steering Neutral Safety Relay: Disconnection...2745
D191KB...2747
Joystick Steering Neutral Safety Relay: Short Circuit...2747
D191KY...2749
Joystick Steering Neutral Safety Relay: Short Circuit with Power Supply Line...2749
D192KA...2751
ECSS Solenoid: Disconnection...2751
D192KB...2753
ECSS Solenoid: Short Circuit...2753
D192KY...2755
ECSS Solenoid Relay: Short Circuit with Power Supply Line...2755
D193KA...2757
Joystick Steering Solenoid Cut Relay: Disconnection...2757
D193KB...2759
Joystick Steering Solenoid Cut Relay: Short Circuit...2759
D193KY...2761
Joystick Steering Solenoid Cut Relay: Short Circuit with Power Supply Line...2761
D5ZHKA...2763
Terminal C Signal: Disconnection...2763
D5ZHKB...2767
Terminal C Signal: Short Circuit...2767
D5ZHKZ...2771
Terminal C Signal: Disconnection or Short Circuit...2771
D5ZHL6...2775
Terminal C Signal: Signal Does Not Match Engine Running or Stopped State...2775
DA80L4...2779
Auto-Grease Controller: ON/OFF Signals Disagree...2779
DAF3KK...2781
Machine Monitor: Low Source Voltage (input)...2781
DAF5KP...2783
Machine Monitor: Low Output Voltage...2783
DAFRKR...2787
Machine Monitor: CAN Defective Communication...2787
DAQ0KK...2791
Transmission Controller: Low Source Voltage...2791
DAQ0KT...2793
Transmission Controller: Abnormality in Controller...2793
DAQ2KK...2795
Transmission Controller Load Power Supply Line: Low Source Voltage (input)...2795
DAQ9KQ...2797
Transmission Controller: Disagreement of Model Selection Signals...2797
DAQRKR...2799
CAN Communication with Transmission Controller: Defective Communication...2799
DAQRMA...2802
Transmission Controller Option Setting: Malfunction...2802
DB2RKR...2803
CAN Communication with Engine Controller: Defective Communication...2803
DB90KK...2807
Work Equipment Controller: Low Source Voltage (input)...2807
DB90KT...2809
Work Equipment Controller: Abnormality in Controller...2809
DB92KK...2811
Work Equipment Controller Load Power Supply Line: Low Source Voltage (input)...2811
DD95KX...2813
Work Equipment Controller Power Supply Output: Out-of-Input Signal Range...2813
DB99KQ...2816
Work Equipment Controller: Disagreement in Model Selection Signals...2816
DB9RKR...2817
CAB Communication with Work Equipment Controller: Defective Communication...2817
DB9RMA...2820
Work Equipment Controller Option Setting: Malfunction...2820
DB9RMC...2821
CAN Communication: Defective Operation...2821
DD15LD...2825
Switch (Panel Switch 1 n): Switch is Pressed for Long Time...2825
DD16LD...2827
Switch (Panel Switch 2 ‡): Switch is Pressed for Long Time...2827
DD17LD...2829
Switch (Panel Switch 3 <): Switch is Pressed for Long Time...2829
DD18LD...2831
Switch (Panel Switch 4 >): Switch is Pressed for Long Time...2831
DD1ALD...2833
Remote Positioner Raise/Lower Set Switch (raise): Switch is Pressed for Long Time...2833
DD1BLD...2835
Remote Positioner Raise/Lower Set Switch (lower): Switch is Pressed for Long Time...2835
DD1CLD...2837
Load Meter Subtotal Switch: Switch is Pressed for Long Time...2837
DD1FLD...2839
Load Meter Mode Selector Switch (A/B): Switch is Pressed for Long Time...2839
DD1GLD...2841
Load Meter Mode Selector Switch (+/-): Switch is Pressed for Long Time...2841
DD1HLD...2843
Load Meter Display Selector Switch: Switch is Pressed for Long Time...2843
DD1NLD...2845
Fan Reverse Switch: Switch is Pressed for Long Time...2845
DD1NL4...2847
Fan Automatic Reverse Switch: Switch is Pressed for Long Time...2847
DDB6L4...2849
Parking Brake Switch (Neutralizer): ON/OFF Signals Disagree...2849
DDE5MA...2853
Emergency Steering Drive Switch: Malfunction...2853
DDK3KA...2855
Right FNR Switch: Disconnection...2855
DDK4KA...2858
Joystick Steering FNR Switch: Disconnection...2858
DDK5L4...2861
Joystick Steering Shift UP/DOWN Switch: ON/OFF Signals Disagree...2861
DDK6KA...2863
FNR Lever Switch: Disconnection...2863
DDK6KB...2866
FNR Lever Switch: Short Circuit...2866
DDS5KA...2869
Steering Pressure Switch: Disconnected...2869
DDS5KB...2871
Steering Pressure Switch: Grounded...2871
DDT0L4...2873
Shift Mode Selector Switch: ON/OFF Signals Disagree...2873
DDT4LD...2875
Transmission Cutoff Set Switch: Switch is Pressed for Long Time...2875
DDW9LD...2877
Kickdown Switch: Switch is Pressed for Long Time...2877
DDWLLD...2879
Hold Switch: Switch is Pressed Down for Long Time...2879
DDY0LD...2881
Load Meter Cancel Switch: Switch is Pressed for Long Time...2881
DF10KA...2883
Transmission Shift Lever Switch: Disconnected...2883
DF10KB...2887
Transmission Shift Lever Switch: Short Circuit...2887
DGF1KA...2891
Transmission Oil Temperature Sensor: Disconnected...2891
DGF1KB...2893
Transmission Oil Temperature Sensor: Short Circuit...2893
DGH2KX...2895
Hydraulic Oil Temperature Sensor: Out-of-Input Signal Range...2895
DGR2KA...2897
Rear Brake Oil Temperature Sensor: Disconnected...2897
DGR2KX...2899
Rear Brake Oil Pressure Sensor: Out-of-Input Signal Range...2899
DGT1KX...2901
Torque Converter Oil Temperature Sensor: Out-of-Input Signal Range...2901
DH21KA...2903
Loader Pump Pressure Sensor: Disconnection...2903
DH21KB...2905
Loader Pump Pressure Sensor: Power Supply Line Short...2905
DHPCKX...2907
Lift Arm Cylinder Bottom Pressure Sensor: Out-of-Input Signal Range...2907
DHPDKX...2909
Lift Arm Cylinder Head Pressure Sensor: Out-of-Input Signal Range...2909
DHT1KX...2911
Transmission Cutoff Pressure Sensor: Out-of-Input Signal...2911
DHT8KA...2913
Steering Pump Pressure Sensor: Disconnection...2913
DHT8KB...2915
Steering Pump Pressure Sensor: Short Circuit...2915
DK59KA...2917
Lift Arm EPC Lever Potentiometer (Main): Disconnection...2917
DK59KY...2920
Lift Arm EPC Lever Potentiometer (Main): Short Circuit with Power Supply Line...2920
DK59L8...2923
Lift Arm EPC Lever Potentiometer (Main): Analog Signals Disagree...2923
DK5AKA...2927
Lift Arm EPC Lever Potentiometer (Sub): Disconnection...2927
DK5AKY...2930
Lift Arm EPC Lever Potentiometer (Sub): Short Circuit with Power Supply LIne...2930
DK5BKA...2933
Bucket EPC Lever Potentiometer (Main): Disconnection...2933
DK5BKY...2936
Bucket EPC Lever Potentiometer (Main): Short Circuit with Power Supply Line...2936
DK5BL8...2939
Bucket EPC Lever Potentiometer (Main): Analog Signals Disagree...2939
DK5CKA...2942
Bucket EPC Lever Potentiometer (Sub): Disconnection...2942
DK5CKY...2945
Bucket EPC Lever Potentiometer (Sub): Short Circuit with Power Supply Line...2945
DK5FKA...2948
Joystick Steering EPC Lever Potentiometer (Main): Disconnection...2948
DK5FKY...2951
Joystick Steering EPC Lever Potentiometer (Main): Short Circuit with Power Supply Line...2951
DK5GKA...2954
Joystick Steering EPC Lever Potentiometer (Sub): Disconnection...2954
DK5GKY...2957
Joystick Steering EPC Lever Potentiometer (Sub): Short Circuit with Power Supply Line...2957
DK5FL8...2960
Joystick Steering EPC Lever Potentiometer (Main): Analog Signals Disagree...2960
DKA0KA...2963
Lift Arm Angle Sensor: Disconnection...2963
DKA0KY...2967
Lift Arm Angle Sensor: Short Circuit with Power Supply Line...2967
DKA0L0...2969
Lift Arm Angle Sensor: Double Meshing...2969
DLT3KA...2971
Transmission Output Shaft Speed Sensor: Disconnection...2971
DLT3LC...2973
Transmission Output Shaft Speed Sensor: Out-of-Input Signal Range...2973
DT20KB...2975
Transmission Cutoff Indicator Lamp: Short Circuit...2975
DUM1KB...2977
Remote Positioner Raise Set Indicator Lamp: Short Circuit...2977
DUM2KB...2979
Remote Positioner Lower Set Indicator Lamp: Short Circuit...2979
DV00KB...2981
Alarm Buzzer: Short Circuit...2981
DW4PKA...2983
Lift Arm Raise EPC Solenoid: Disconnection...2983
DW4PKB...2985
Lift Arm Raise EPC Solenoid: Short Circuit...2985
DW4PKY...2987
Lift Arm Raise EPC Solenoid: Short Circuit with Power Supply Line...2987
DW4QKA...2989
Lift Arm Lower EPC Solenoid: Disconnection...2989
DW4QKB...2991
Lift Arm Lower EPC Solenoid: Short Circuit...2991
DW4QKY...2993
Lift Arm Lower EPC Solenoid: Short Circuit with Power Supply Line...2993
DW4RKA...2995
Bucket Tilt EPC Solenoid: Disconnection...2995
DW4RKB...2997
Bucket Tilt EPC Solenoid: Short Circuit...2997
DW4RKY...2999
Bucket Tilt EPC Solenoid: Short Circuit with Power Supply Line...2999
DW4SKA...3001
Buck Dump EPC Solenoid: Disconnection...3001
DW4SKB...3003
Bucket Dump EPC Solenoid: Short Circuit...3003
DW4SKY...3005
Bucket Dump EPC Solenoid: Short Circuit with Power Supply Line...3005
DW7BKA...3007
Fan Reverse Solenoid: Disconnection...3007
DW7BKB...3009
Fan Reverse Solenoid: Short Circuit...3009
DW7BKY...3011
Fan Reverse Solenoid: Short Circuit with Power Supply Line...3011
DWM1KA...3013
Work Equipment Neutral Lock Solenoid: Disconnection...3013
DWM1KB...3015
Work Equipment Neutral Lock Solenoid: Short Circuit...3015
DWM1KY...3017
Work Equipment Neutral Lock Solenoid: Short Circuit with Power Supply Line...3017
DWN6KA...3019
Lift Arm Raise Magnet Detent Solenoid: Disconnection...3019
DWN6KB...3021
Lift Arm Raise Magnet Detent Solenoid: Short Circuit...3021
DWN6KY...3023
Lift Arm Raise Magnet Detent Solenoid: Short Circuit with Power Supply Line...3023
DWN7KA...3025
Lift Arm Float Magnet Detent Solenoid: Disconnection...3025
DWN7KB...3027
Lift Arm Float Magnet Detent Solenoid: Short Circuit...3027
DWN7KY...3029
Lift Arm Float Magnet Detent Solenoid: Short Circuit with Power Supply Line...3029
DWN8KA...3031
Bucket Tilt Magnet Detent Solenoid: Disconnection...3031
DWN8KB...3033
Bucket Tilt Magnet Detent Solenoid: Short Circuit...3033
DWN8KY...3035
Bucket Tilt Magnet Detent Solenoid: Shorted with the Power Source...3035
DX16KA...3037
Fan Pump EPC Solenoid: Disconnection...3037
DX16KB...3039
Fan Pump EPC Solenoid: Short Circuit...3039
DX16KY...3041
Fan Pump EPC Solenoid: Short Circuit with Power Supply Line...3041
DXH1KA...3043
Lockup ECMV Solenoid: Disconnection...3043
DXH1KB...3045
Lockup ECMV Solenoid: Short Circuit...3045
DXH1KY...3047
Lockup ECMV Solenoid: Short Circuit with Power Supply Line...3047
DXH4KA...3049
1st Clutch ECMV Solenoid: Disconnection...3049
DXH4KB...3051
1st Clutch ECMV Solenoid: Short Circuit...3051
DXH4KY...3053
1st Clutch ECMV Solenoid: Short Circuit with Power Supply Line...3053
DXH5KA...3055
2nd Clutch ECMV Solenoid: Disconnection...3055
DXH5KB...3057
2nd Clutch ECMV Solenoid: Short Circuit...3057
DXH5KY...3059
2nd Clutch ECMV Solenoid: Short Circuit with Power Supply Line...3059
DXH6KA...3061
3rd Clutch ECMV Solenoid: Disconnection...3061
DXH6KB...3063
3rd Clutch ECMV Solenoid: Short Circuit...3063
DXH6KY...3065
3rd Clutch ECMV Solenoid: Short Circuit with Power Supply Line...3065
DXH7KA...3067
R Clutch ECMV Solenoid: Disconnection...3067
DXH7KB...3069
R Clutch ECMV Solenoid: Short Circuit...3069
DXH7KY...3071
R Clutch ECMV Solenoid: Short Circuit with Power Supply Line...3071
DXH8KA...3073
F Clutch ECMV Solenoid: Disconnection...3073
DXH8KB...3075
F Clutch ECMV Solenoid: Short Circuit...3075
DXH8KY...3077
F Clutch ECMV Solenoid: Short Circuit with Power Supply Line...3077
DXHHKA...3079
4th Clutch ECMV Solenoid: Disconnection...3079
DXHHKB...3081
4th Clutch ECMV Solenoid: Short Circuit...3081
DXHHKY...3083
4th Clutch ECMV Solenoid: Short Circuit with Power Supply Line...3083
DXHLKA...3085
Joystick Steering Right EPC Solenoid: Disconnection...3085
DXHLKB...3087
Joystick Steering Right EPC Solenoid: Short Circuit...3087
DXHLKY...3089
Joystick Steering Right EPC Solenoid: Short Circuit with Power Supply Line...3089
DXHMKA...3091
Joystick Steering Left EPC Solenoid: Disconnection...3091
DXHMKB...3093
Joystick Steering Left EPC Solenoid: Short Circuit...3093
DXHMKY...3095
Joystick Steering Left EPC Solenoid: Short Circuit with Power Supply Line...3095
DY30MA...3097
Motor-Driven Emergency Steering Pump Failure (during Operation of machine)...3097
DY30MC...3100
Motor-Driven Emergency Steering Pump Failure (Malfunction in Manual Mode)...3100
TROUBLESHOOTING: E-MODE...3103
Troubleshooting Electrical System...3103
Information in Troubleshooting Table...3103
E-1...3105
Engine Does Not Start...3105
E-2...3111
Wiper Does Not Operate...3111
E-3...3115
Windshield Washer Does Not Operate...3115
E-4...3119
Headlamp, Clearance Lamp, Tail Lamp, and License Lamp Do Not Light Up or Go Off...3119
E-5...3127
Working Lamp Does Not Light Up or Go Off...3127
E-6...3133
Turn Signal Lamp and Hazard Lamp Do Not Light Up or Go Off...3133
E-7...3139
Brake Lamp Does Not Light or It Keeps Lighting Up...3139
E-8...3142
Backup Lamp Does Not Light or It Keeps Lighting Up...3142
E-9...3145
Backup Buzzer Does Not Sound or It Keeps Sounding...3145
E-10...3148
Horn Does Not Sound or It Keeps Sounding...3148
E-11...3151
Alarm Buzzer Does Not Sound or It Keeps Sounding...3151
E-12...3153
Air Conditioner Does Not Operate or Stop...3153
E-13...3157
KOMTRAX System Does Not Work Properly...3157
Indicator Lamps of KOMTRAX Terminal...3159
E-14...3161
When Kickdown Switch is Turned On, Kickdown Operation Does Not Start...3161
E-15...3163
When Hold Switch is Pressed, Holding Operation Does Not Start...3163
E-16...3165
Transmission Kept in Neutral or Brake Drags when Directional Lever is Operated While Parking Brake is Applied...3165
E-17...3167
Transmission Cutoff Mode Cannot Be Set or Reset...3167
E-18...3169
Transmission Cutoff Set Cannot be Reset...3169
E-19...3171
FNR Switch Mode Cannot Be Set or Reset...3171
E-20...3173
Fan Reverse Function Cannot Be Used or Reset...3173
E-21...3175
Discharge from Loader Pump Does Not Rise from Minimum Level...3175
E-22...3177
ECSS Function Cannot Be Used or Reset...3177
E-23...3179
When Parking Brake is Turned On, Parking Brake Indicator Lamp Does Not Light Up...3179
E-24...3183
When Emergency Brake Operates, Brake Oil Pressure Caution Lamp Does Not Operate...3183
E-25...3185
Air Cleaner Clogging Indicator Lamp Does Not Light Up...3185
E-26...3187
Radiator Coolant Level Caution Lamp Does Not Light Up...3187
E-27...3189
Hydraulic Oil Temperature Gauge Does Not Rise and Hydraulic Oil Temperature Caution Lamp Does Not Light Up...3189
E-28...3191
Torque Converter Oil Temperature Gauge Does Not Rise and Torque Converter Oil Temperature Caution Lamp Does Not Light Up...3191
E-29...3193
Steering Oil Pressure Caution Lamp Does Not Light Up...3193
E-30...3195
Abnormality in Switch (n) (Panel Switch 1) Input...3195
E-31...3197
Abnormality in Switch (‡) (Panel Switch 2) Input...3197
E-32...3199
Abnormality in Switch (<) (Panel Switch 3) Input...3199
E-33...3201
Abnormality in Switch (>) (Panel Switch 4) Input...3201
TROUBLESHOOTING: H-MODE...3203
Troubleshooting Hydraulic and Mechanical Systems...3203
Using Troubleshooting Chart...3203
Failure Codes and Causes Table...3205
H-1...3209
Machine Does Not Start...3209
H-2...3211
Torque Converter Lockup is Not Switched OFF (Engine Stalls)...3211
H-3...3212
Torque Converter Lockup is Not Switched ON...3212
H-4...3213
Travel Speed is Slow, Thrusting Force is Weak, Uphill Traveling Power is Weak, Gear is Not Shifted...3213
H-5...3217
Large Shocks When Starting and Shifting Gears...3217
H-6...3221
Large Time Lag When Starting and Shifting Gear...3221
H-7...3225
Torque Converter Oil Temperature is High...3225
H-8...3226
Steering Does Not Turn...3226
H-9...3227
Steering Does Not Turn (Joystick Steering, if equipped)...3227
H-10...3228
Steering Response is Poor...3228
H-11...3229
Steering, Turning Response is Poor (Joystick Steering, if Equipped)...3229
H-12...3230
Steering is Heavy...3230
H-13...3231
When Machine Turns, It Shakes or Jerks...3231
H-14...3232
When Machine Turns, It Shakes or Jerks (Joystick Steering, if Equipped)...3232
H-15...3233
Wheel Brake Does Not Work or Does Not Work Well...3233
H-16...3234
Wheel Brake is Not Released or It Drags...3234
H-17...3235
Parking Brake Does Not Work or Does Not Work Well...3235
H-18...3236
Parking Brake is Not Released or It Drags...3236
H-19...3237
Lift Arm Does Not Rise...3237
H-20...3238
Lift Arm Speed is Low or Rising Force is Insufficient...3238
H-21...3239
When Rising, Lift Arm Starts to Move Slowly at a Specific Height...3239
H-22...3239
Lift Arm Cylinder Cannot Hold Down Bucket (Bucket Floats)...3239
H-23...3239
Hydraulic Drifts of the Lift Arm Are Large...3239
H-24...3240
Lift Arm Wobbles During Operation...3240
H-25...3241
Bucket Does Not Tilt Back...3241
H-26...3242
Bucket Speed is Low or Tilting-Back Force Is Insufficient...3242
H-27...3243
Bucket Starts to Operate Slowly in the Midst of Tilting Back...3243
H-28...3243
Bucket Cylinder Cannot Hold Down the Bucket...3243
H-29...3243
Hydraulic Drifts of the Bucket Are Large...3243
H-30...3244
Bucket Wobbles During Travel with Load...3244
H-31...3245
Lift Arm and Bucket Control Levers Do Not Move Smoothly and Are Heavy...3245
H-32...3246
During Operation of Machine, Engine Speed Drops Remarkably or Engine Stalls...3246
H-33...3246
Large Shocks When Work Equipment Starts and Stops...3246
H-34...3246
When Work Equipment Circuit is Relieved Singly, Other Work Equipment Moves...3246
H-35...3247
ECSS Does Not Operate; Pitching and Bouncing Occur...3247
50 DISASSEMBLY AND ASSEMBLY...3248
HOW TO READ THIS MANUAL...3252
Removal and Installation of Assemblies...3252
Disassembly and Assembly of Assemblies...3254
COATING MATERIALS LIST...3256
SPECIAL TOOLS LIST...3259
SKETCHES OF SPECIAL TOOLS...3262
CONNECTOR REPAIR PROCEDURES...3268
Stripping Insulation...3268
Wire Inspection...3268
Contact Terminal Removal (HD30 Type)...3269
Crimping Contact Terminal (HD30 Type)...3270
Insertion Of Contact Terminal (HD30 Type)...3271
Contact Terminal Removal (DT Type)...3272
Crimping Contact Terminal (DT Type)...3273
Insertion Of Contact Terminal (DT Type)...3274
ENGINE AND COOLING SYSTEM...3275
Alternator...3275
Crankshaft...3275
Camshaft...3275
Engine Front Seal...3275
Engine Oil Cooler...3275
Engine Rear Seal...3275
Starting Motor...3275
Thermostat...3275
Turbocharger...3275
Water Pump...3275
Cylinder Head...3276
Removal...3276
Installation...3282
Engine Hood...3289
Removal...3289
Installation...3291
Radiator...3292
Removal...3292
Installation...3293
Air Aftercooler...3294
Removal...3294
Installation...3295
Hydraulic Oil Cooler...3296
Removal...3296
Installation...3297
Engine...3298
Removal...3298
Installation...3303
Cooling Fan and Fan Motor...3305
Removal...3305
Installation...3308
FUEL SUPPLY SYSTEM...3309
Fuel Supply Pump...3309
Removal...3309
Installation...3310
Fuel Injector...3311
Removal...3311
Installation...3314
Fuel Tank...3319
Removal...3319
Installation...3321
POWER TRAIN...3322
Torque Converter and Transmission Assembly...3322
Removal...3322
Installation...3329
Torque Converter (Standard Specification)...3330
Disassembly...3330
Assembly...3333
Torque Converter (Lockup Specification)...3336
Disassembly...3336
Assembly...3339
Transmission...3344
Disassembly...3344
Assembly...3354
Clutch Pack...3365
Forward and Reverse Clutch Pack: Disassembly...3365
1st and 4th Clutch Pack: Disassembly...3369
2nd and 3rd Gear Clutch Pack: Disassembly...3372
Forward and Reverse Clutch Pack: Assembly...3378
1st and 4th Clutch Pack: Assembly...3382
2nd and 3rd Clutch Pack: Assembly...3386
Parking Brake...3391
Disassembly...3391
Assembly...3396
Front Axle...3403
Removal...3403
Installation...3404
Rear Axle...3405
Removal...3405
Installation...3408
Axle Housing...3410
Disassembly...3410
Assembly...3415
Differential Assembly...3422
Disassembly...3422
Assembly...3431
STEERING SYSTEM...3447
Steering Valve Assembly...3447
Removal...3447
Installation...3449
BRAKING SYSTEM...3450
Parking Brake Discs and Plates...3450
Removal...3450
Installation...3452
UNDERCARRAGE AND FRAME...3453
Center Hinge Pin...3453
Removal...3453
Installation...3458
Counterweight...3463
Removal...3463
Installation...3465
HYDRAULIC SYSTEM...3466
Work Equipment Control Valve...3466
Removal...3466
Installation...3468
Power Train Pump and Work Equipment Pump Assembly...3469
Removal...3469
Installation...3469
Steering Pump And Cooling Fan Pump Assembly...3470
Removal...3470
Installation...3471
Hydraulic Tank...3472
Removal...3472
Installation...3475
WORK EQUIPMENT...3476
Work Equipment Assembly...3476
Removal...3476
Installation...3479
Hydraulic Cylinder...3481
Disassembly...3481
Assembly...3485
CAB AND ATTACHMENTS...3490
Cab and Floor Frame...3490
Removal...3490
Installation...3493
Cab Glass (Stuck Glass)...3494
Removal...3494
Installation...3495
Operator Seat Assembly (Standard Specification) (ISRING HAUSEN)...3503
Disassembly...3503
Assembly...3510
Operator Seat Assembly (GRAMMER)...3515
Upper Seat...3515
Suspension...3523
AIR CONDITIONER UNIT ASSEMBLY...3551
Removal...3551
Installation...3555
ELECTRICAL SYSTEM...3556
Engine Controller Assembly...3556
Removal...3556
Installation...3556
90 DIAGRAMS AND SCHEMATICS...3558
AUTOMATIC GREASING...3560
Auto-Grease Circuit Diagram...3560
HYDRAULIC SYSTEM...3561
Power Train Hydraulic Circuit Diagram...3561
Without Lockup Clutch...3561
With Lockup Clutch...3561
Hydraulic Circuit Diagram...3562
ELECTRICAL SYSTEM...3563
Machine Monitor System Circuit Diagram...3563
Transmission Controller System Circuit Diagram...3564
Work Equipment Controller System Circuit Diagram...3565
Work Equipment Controller System Electrical Circuit Diagram...3566
Electrical Circuit Diagram (1/14)...3567
Electrical Circuit Diagram (2/14)...3568
Electrical Circuit Diagram (3/14)...3569
Electrical Circuit Diagram (4/14)...3570
Electrical Circuit Diagram (5/14)...3571
Electrical Circuit Diagram (6/14)...3572
Electrical Circuit Diagram (7/14)...3573
Electrical Circuit Diagram (8/14)...3574
Electrical Circuit Diagram (9/14)...3575
Electrical Circuit Diagram (10/14)...3576
Electrical Circuit Diagram (11/14)...3577
Electrical Circuit Diagram (12/14)...3578
Electrical Circuit Diagram (13/14)...3579
Electrical Circuit Diagram (14/14)...3580
Connector List and Stereogram...3581
Chassis...3581
Engine and Transmission...3582
Operator’s Compartment...3583
CEBM022703 - Wheel Loader WA380-6 Shop Manual...3584
CEBM022703 - WA380-6 S/N A54001-UP.pdf...0
01 GENERAL...3646
SPECIFICATIONS...3648
Dimension Drawing...3648
Specification Tables...3650
WEIGHT TABLE...3655
FUEL, COOLANT, AND LUBRICANTS...3657
10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD...3660
ENGINE AND COOLING SYSTEM...3665
Engine and Transmission Mounting...3665
Torque Values...3666
Cooling System...3667
Specifications...3667
Cooling Fan Pump...3669
Type: LPV30...3669
Torque Values...3670
Torque Values...3671
Function...3672
Structure...3672
Operation...3673
Control of Delivery...3673
Servo Valve...3674
Torque Values...3674
Function...3675
Cooling Fan Motor System...3677
Type: LMF28...3677
Specifications...3678
Torque Values...3678
Hydraulic Motor...3680
Function...3680
Principle of Operation...3680
Suction Valve...3681
Function...3681
Operation...3681
Reversible Valve...3682
Safety Valve...3683
Function...3683
Operation...3683
POWER TRAIN SYSTEM...3684
Drive Line Components...3684
Outline...3684
System Diagram...3685
Outline...3686
Drive Shaft System...3687
Torque Values...3687
Outline...3687
Power Train Piping System...3688
Torque Converter...3689
Without Lockup Clutch...3689
Specifications...3689
Torque Values...3690
Power Transmitting Route...3691
Oil Flow...3691
With Lockup Clutch...3692
Specification...3692
Torque Values...3694
Torque Flow...3695
When Lockup Clutch Is Disengaged...3695
When Lockup Clutch Is Engaged...3695
Oil Flow...3696
Transmission...3697
With Lockup Clutch...3697
Torque Values...3698
Outline...3699
Torque Values...3702
Torque Values...3706
Forward and Reverse Clutches...3707
Without Lockup Clutch...3707
With Lockup Clutch...3708
1st and 4th Clutches...3709
2nd and 3rd Clutches...3710
Operation of Clutch Pack...3711
When clutch is engaged...3711
When clutch is disengaged...3711
Transmission Torque Flow Route...3713
Forward 1st Gear Speed...3713
Forward 2nd Gear Speed...3714
Forward 3rd Gear Speed...3716
Forward 4th Gear Speed...3717
Reverse 1st Gear Speed...3719
Flow Control Valve...3720
Torque Values...3722
Operation...3722
Valve Assembly...3723
Torque Values...3724
ECMV System...3725
For R, 1st, and 2nd Clutches...3725
Torque Values...3726
For F, 3rd, 4th, and Lockup Clutches...3727
ECMV For Gear Speed Clutch...3729
Outline of ECMV...3729
ECMV and Proportional Solenoid...3729
ECMV and Fill Switch...3729
Operation of ECMV...3730
Before Shifting Gear (when draining) (Range A in chart)...3730
During filling (Range B in chart)...3731
Pressure regulation (Range C in chart)...3731
ECMV for Lockup Clutch...3732
Outline...3732
Operation...3732
When Traveling in Direct Range...3733
During Filling...3733
Pressure Adjustment...3733
Main and Torque Converter Relief Valve System...3735
Torque Values...3736
Outline...3737
Torque Converter Relief Valve...3737
Main Relief Valve...3737
Operation...3737
Torque Converter Relief Valve...3737
Operation of Main Relief Valve...3737
DRIVE AXLE SYSTEM...3738
Front Axle Assembly...3738
Rear Axle Assembly...3739
Front Differential...3741
Torque Values...3742
Rear Differential...3743
Torque Values...3744
Outline...3745
While Machine is Traveling Straight...3745
When Machine Is Turning...3745
Limited Slip Differential...3746
Front Axle Carrier...3747
Torque Values...3748
Rear Axle Carrier...3749
Torque Values...3750
Operation of Limited Slip Differential...3751
Generation of Braking Torque by Right / Left Side Gears (5)...3751
While Machine is Traveling Straight...3751
When Machine Is Turning...3752
Final Drive...3753
Outline...3753
Torque Values...3754
STEERING SYSTEM...3755
Steering Piping Diagram...3755
Steering Column...3756
Torque Values...3756
Steering Pump...3757
Type: LPV63...3757
Torque Values...3758
Pump Unit...3759
Torque Values...3760
Function...3761
Structure...3761
Operation of Pump...3762
Control of Discharge Amount...3763
Servo Valve...3764
Torque Values...3766
LS Valve...3767
Function...3767
PC Valve...3767
Function...3767
Operation of Spring...3768
When pump pressure (PA) is low...3768
When pump pressure (PA) is high...3769
Steering Valve...3771
Operation of Flow Amplifier...3775
When Spool is at Neutral (when Orbitrol valve is not in operation)...3775
When Spool is in Operation (when oil flows in port (Pa))...3775
When Spool is Returned (when steering wheel is stopped)...3776
Operation of Flow Control Spool...3777
When Steering Spool is at Neutral Position...3777
When Steering Spool Operates...3778
Operation of Steering Valve...3779
At Neutral...3779
Turning Left...3780
Turning Right...3781
Steering Relief Valve...3782
Function...3782
Operation...3782
Overload Relief Valve...3783
Function...3783
Operation as Relief Valve...3783
Operation as Suction Valve...3784
Relief Valve...3784
Function...3784
Orbitrol Valve...3785
Torque Values...3785
Outline...3786
Structure...3786
Connection of Hand Pump and Sleeve...3787
Role of Centering Spring...3788
Stop Valve...3789
Steering Relief Valve...3790
Torque Values...3790
Outline...3790
Steering Cylinder...3791
Emergency Steering Motor...3793
Function...3793
Specifications...3793
Emergency Steering Pump (If Equipped)...3794
Type: SBL (1) 21...3794
Torque Value...3794
Function...3794
Joystick Steering Lever Linkage...3795
Steering Electric Lever...3796
Function...3796
Joystick EPC Valve...3797
Torque Values...3797
Function...3797
Multi-Function Lever & Joystick Lever (Modification)...3798
Required...3798
Procedure...3799
SERVICE BRAKING SYSTEM...3800
Brake Piping Diagram...3800
Charge Valve...3801
Torque Value...3801
Torque Values...3804
Function...3804
Operation...3805
When Oil is Not Supplied to Accumulator (cut-out state)...3805
When Oil is Supplied to Accumulator (cut-in state)...3806
When Cut-out Pressure is Reached...3807
Main Relief Valve (R1)...3807
PPC Relief Valve (R3)...3808
Sequence Valve (H1)...3808
Shuttle Valve (S1)...3808
Brake Valve...3809
Outline...3809
Operation...3810
When the Brake Pedal is Depressed...3810
When Brake on One Side is Operated...3811
Balancing Operation...3812
When Brake Pedal is Released...3813
Accumulator (for Brakes)...3814
Function...3814
Specifications...3814
Front Brake...3815
Outline...3816
Rear Brake...3817
Outline...3818
Operation...3818
When Brake is Operated...3818
When Brake is Released...3818
PARKING BRAKE SYSTEM...3819
Brake Control...3819
Outline...3820
Parking Brake Unit...3821
Outline...3822
Torque Values...3822
Parking Brake Solenoid Valve...3823
Torque Values...3823
Operation...3824
When Parking Brake is Applied (When solenoid is de-energized)...3824
When Parking Brake is Released (When solenoid is energized)...3824
Emergency Parking Brake Release Valve...3825
Function...3825
UNDERCARRIAGE AND FRAME...3826
Axle Mounting and Center Hinge Pin...3826
Torque Values...3826
Outline...3826
Torque Values...3827
Tires...3831
Radial Ply Tire...3831
Bias Tire...3831
HYDRAULIC SYSTEM...3833
Piping Diagram...3833
Outline...3835
Work Equipment Control Lever System...3836
Multi-Function Mono-Lever Type...3837
Hydraulic Tank...3839
Specifications...3840
Tank Vent System...3840
Power Train Pump...3841
Type: SDL (30)80...3841
Outline...3841
Work Equipment Pump...3843
Type: LPV90...3843
Torque Values...3844
Pump Unit...3845
Servo Valve...3847
Torque Values...3850
Function...3851
Structure...3851
Operation of Pump...3852
Control of Delivery...3853
LS Valve...3853
Function...3853
PC valve...3854
Function...3854
Operation...3854
When Load is Light (Fig.1)...3855
When Load is Heavy (Fig.2)...3855
When Balanced (Fig.3)...3856
Work Equipment Control Valve...3857
Outline...3857
4-Spool Valve...3859
General View...3859
Torque Values...3860
Sectional View of Valve (1/7)...3861
Torque Values...3862
Sectional View of Valve (2 /7)...3863
Sectional View of Valve (3/7)...3865
Sectional View of Valve (4/7)...3867
Sectional View of Valve (5/7)...3869
Sectional View of Valve (6/7)...3871
Sectional View of Valve (7/7)...3873
CLSS...3875
Outline of CLSS...3875
Features...3875
Structure...3875
Basic Principle...3876
Pump Swash Plate Angle Control...3876
Pressure Compensation Control...3877
Function and Operation of Each Valve...3878
Hydraulic Circuit Diagram of Valves...3878
Unload Valve...3879
When Control Valve is at Neutral Position...3879
When Control Valve is Controlled Finely...3880
When Control Valve is Operated...3881
Work Equipment Valve (Supply of LS Pressure)...3882
Work Equipment Valve (Lift Arm)...3882
Work Equipment Valve (Bucket and Service)...3883
LS Bypass Plug...3884
Pressure Compensation Valve...3885
Lift Arm Regeneration Circuit...3889
When Lift Arm is Lowered...3889
Function...3890
Operation...3890
Variable Lift Check Valve...3891
Function...3891
Operation...3891
ECSS Control Valve...3892
Function...3892
Operation...3892
Restriction on Lift Arm Raise Stroke...3893
Function...3894
Operation...3894
Accumulator Charge Valve...3895
Pressure...3896
When Valve is in Neutral and (P) is Low...3897
Function...3897
Operation...3897
When Load Pressure (P) is High...3898
Operation...3898
PPC Valve...3899
Work Equipment PPC Valve...3899
Operation...3901
When In Neutral...3901
During Fine Control...3902
Stabilizer Valve...3904
Function...3904
When in Neutral...3905
Operation...3905
Main Spool (9) is Moved from Neutral to Operating Position...3906
Operation...3906
Main Spool (9) is Moved from Operating Position to Neutral...3908
Operation...3908
Work Equipment PPC Cutoff Solenoid Valve...3909
Outline...3909
Operation...3910
Accumulator (for PPC Circuit)...3911
Outline...3911
Specifications...3911
Accumulator (for ECSS)...3912
Function...3912
Specifications...3912
WORK EQUIPMENT...3913
Work Equipment Linkage...3913
Bucket...3915
Bucket Positioner and Boom Kickout...3917
Bucket Positioner...3918
Boom Kick-out...3918
Proximity Switch...3919
When Bucket Is Tilted...3919
Function of Proximity Switch...3921
When Lift Arm Is Raised...3922
Function of Proximity Switch...3924
Work Equipment Cylinders...3925
Lift Cylinder...3925
Bucket Cylinder...3925
CAB ENVIRONMENT...3926
ROPS Cab...3926
Air Conditioner...3927
Air Conditioner Piping Diagram...3927
Specifications...3928
Refrigerant Circuit Diagram...3929
Air Conditioner Unit...3930
(Automatic Air Conditioner)...3930
Outline...3931
Cooler...3931
Heater...3931
Functions of Major Components...3931
Evaporator...3931
Heater Core...3931
Expansion Valve...3931
Blower Controller...3931
Blower Motor Relay...3931
Compressor Clutch Relay...3931
Air Mix Damper Actuator...3931
Mode Selector Damper Actuator...3932
Evaporator Temperature Sensor...3932
Dual Pressure Switch...3932
Sunlight Sensor...3932
Blower and Intake Unit...3933
Automatic Air Conditioner...3933
Functions of Major Components...3933
Refrigerant Compressor...3934
Function...3934
Specifications...3934
Condenser...3935
Function...3935
Specifications...3935
Receiver...3936
Function...3936
Specifications...3936
Air Conditioner Panel...3937
Display Unit...3937
Switch Block...3938
Outline...3939
ELECTRICAL SYSTEM...3941
Machine Monitor System...3941
Outline...3941
Operator Mode...3941
Service Mode...3942
System Circuit Diagram...3943
Machine Monitor...3944
Speedometer Specification...3944
Items Displayed on Monitor...3945
Machine Monitor Operation Switches...3954
Setting Machine Monitor...3955
Troubleshooting Function...3955
Character Display Function...3956
Operator Mode Functions...3957
Self-Check Screen (0th layer)...3957
Normal Screen (1st layer)...3957
Failure Code Screen (1st layer)...3958
Display of Functions Available for the Operator (2nd layer or below)...3959
Service Mode Functions...3960
Procedure for Switching to Service Mode...3960
Service Mode Menu...3961
Electrical System Failure History Display Function (ELECTRIC FAULT)...3962
Mechanical System Failure History Display Function (MACHINE FAULT)...3962
Real-Time Monitoring Function (REAL-TIME MONITOR)...3962
Engine Reduced-Cylinder Function (CYLINDER CUT-OUT)...3962
No Injection Cranking Function (NO INJECTION)...3963
Adjustment Function (TUNING)...3963
Maintenance Monitoring Function (MAINTENANCE MONITOR)...3963
Operating Information Display Function (OPERATION INFO)...3963
Optional Device Selecting Function (OPTIONAL SELECT)...3964
Machine Serial Number Input Function (MACHINE No. SET)...3964
Model Selection Function (MACHINE)...3964
Initialize Function (INITIALIZE)...3964
Input and Output Signals...3965
Transmission Controller System...3973
Gearshifting Control Function...3973
Electronic Modulation Function...3973
Gearshifting Display Function...3973
Automatic Gearshifting Function...3974
Auto-Shift Points Table...3975
Auto-Shift Points...3979
Shift Hold Function...3981
Kickdown Function...3981
Torque Converter Lockup Function...3982
Lockup Operating Points Table...3984
Forward...3984
Reverse...3986
Hunting Protection Function...3988
Changing Shift Points...3988
4th Gear Speed Derating Function...3988
Transmission Controller Protection Function...3989
Shift-Down Protection Function...3990
Engine Overrun Prevention Function...3990
Maximum Travel Speed Derating Function...3991
Neutralizer Function...3991
Engine Control Function...3991
Economy Operation Pilot Lamp Function...3992
Cooling Fan Control Function...3993
Fan Control...3994
Pump Protection Function...3994
Control at Start of Engine...3995
Fan Reverse Rotation Function...3996
Work Equipment Pump Swash Plate Control Function...3998
Engine Stop Prevention Control at Low Idle...3998
Pickup Auxiliary Function when Engine Speed is Low...3999
Transmission Cutoff Function...4000
ECSS Function...4002
Outline...4002
Setting Method...4002
Operation...4003
Electric Emergency Steering Function...4004
Outline...4004
Setting method...4005
Self-Check Operation of Emergency Steering...4005
Directional Selector Switch Control Function...4006
Operation of Directional Selector Switch...4006
Safety Function at Start of Engine...4007
Setting Method...4007
Multi-Function Mono Lever Function...4008
Operation of FNR Switch...4008
Safety Function at Start of Engine...4009
Shift Hold Function...4009
Kickdown Function...4009
Setting Method...4009
Joystick Steerin Function...4010
Operation of Directional Selector Switch...4011
Safety Function at Start of Engine...4011
Shift-Up and Shift-Down Function...4012
Setting Method...4012
System Circuit Diagram...4013
Transmission Controller...4014
Input and Output Signals...4014
Work Equipment Controller System...4016
Safety Function for Starting Engine...4016
Safety Function for Selecting Joystick Steering System...4016
Steering Speed Selecting Function...4017
Travel Speed-Sensitive Steering Function...4017
Adjusting Starting Current...4017
Setting Method...4017
Troubleshooting Function...4017
System Circuit Diagram...4018
Work Equipment Controller...4019
Input and Output Signals...4019
ELECTRONIC TRANSMISSION CONTROL...4021
Function...4022
Combination Switch...4023
Outline...4023
Function...4023
Operation...4024
KICKDOWN AND HOLD SWITCH...4025
Load Meter Cancel Switch and Load Meter Subtotal Switch...4025
Function...4025
MULTI-FUNCTION KNOB...4026
Function...4026
Modification of Multi-Function Lever...4027
Required...4027
Procedure...4028
JOYSTICK STEERING KNOB...4029
Function...4029
KOMTRAX TERMINAL SYSTEM...4030
KOMTRAX Terminal...4031
Model TC301...4031
Outline...4031
Input and Output Signals...4032
ENGINE STARTING CIRCUIT...4033
Function...4034
Operation...4034
ENGINE STOPPING CIRCUIT...4035
Operation...4035
PREHEATING CIRCUIT...4036
Outline...4036
Operation...4036
ENGINE POWER MODE SELECTOR CIRCUIT...4037
Function...4037
Operation...4037
ENGINE OUTPUT DERATING FUNCTION...4038
AUTOMATIC WARM-UP FUNCTION...4038
PARKING BRAKE CIRCUIT...4039
Operation...4039
When ignition switch is turned OFF...4039
When ignition switch is turned ON...4039
When low oil pressure occurs on main brake (when emergency brake is applied)...4040
SENSORS...4041
Speed Sensor...4041
Torque Converter Oil Temperature Sensor...4042
Hydraulic Oil Temperature Sensor...4042
Transmission Oil Temperature Sensor...4042
Brake Oil Temperature Sensor...4042
Work Equipment Pump Oil Pressure Sensor...4043
Steering Pump Oil Pressure Sensor...4043
Lift Cylinder Head Oil Pressure Sensor...4043
Lift Cylinder Bottom Oil Pressure Sensor...4043
Transmission Cutoff Oil Pressure Sensor...4044
Coolant Lever Sensor...4045
Fuel Level Sensor...4046
Air Cleaner Clogging Sensor...4047
Accelerator Pedal Sensor...4048
Torque Values...4048
Function...4048
Accelerator signal...4048
Idle Validation Signal...4048
Water-In-Fuel Sensor...4049
Boom Kickout Proximity Switch...4050
Bucket Positioner Proximity Switch...4050
Lift Arm Potentiometer...4051
20 STANDARD VALUE TABLES...4052
STANDARD VALUE TABLES...4053
Service Value For Engine...4053
Service Values For Chassis...4054
POSTURE AND PERFORMANCE MEASUREMENTS...4056
Machine Posture...4061
30 TESTING AND ADJUSTING...4064
TOOLS...4069
Tools for Testing, Adjusting, and Troubleshooting...4069
ENGINE COMPONENTS...4075
Engine Speed...4075
Measurement Conditions...4075
Measure Engine Speed (Low and High Idle)...4075
Measure Torque Converter Stall Speed...4075
Measure Hydraulic Stall Speed...4076
Measure Torque Converter Stall and Hydraulic Stall (Full Stall) Speed...4076
Exhaust Gas Color...4077
Special Tools Required...4077
Measurement Condition...4077
Using Handy Smoke Checker A1...4077
Using Smoke Meter A2...4077
Valve Clearance...4079
Special Tools Required...4079
Measurement Condition...4079
Engine Compression...4081
Special Tools Required...4081
Measurement Condition...4081
Blow-by Pressure...4085
Special Tools Required...4085
Measurement Conditions...4085
Engine Oil Pressure...4087
Special Tools Required...4087
Measurement Condition...4087
Intake Air (Boost) Pressure...4088
Special Tool Required...4088
Measurement Condition...4088
Determining a Defective Cylinder...4090
Procedures...4090
Determining Cylinder Group...4090
Isolating the Defective Cylinder...4090
FUEL SYSTEM...4091
Handling Fuel System Equipment...4091
Precautions for Testing and Maintaining Fuel System...4091
Precautions for Replacement of Fuel Filter Cartridge...4091
Releasing Residual Pressure in Fuel System...4091
Measuring Fuel Pressure...4092
Special Tools Required...4092
Measuring Pressure in Fuel Low-pressure Circuit...4092
Measuring Pressure in Fuel Return Circuit...4093
Measuring Fuel Negative-Pressure Circuit Pressure...4094
Fuel Delivery, Return, and Leak Rate...4095
Special Tools Required...4095
Measuring Supply Pump Delivery...4095
Measuring Return Rate from Supply Pump...4096
Measuring Leakage from Pressure Limiter...4097
Measuring Return Rate from Injector...4098
Bleeding Air from Fuel Circuit...4099
Testing Leakage in Fuel System...4100
Handling Reduced Cylinder Mode Operation...4101
Handling No-Injection Cranking Operation...4101
Handling Controller Voltage Circuit...4101
EXHAUST SYSTEM AND PIPING...4102
Checking Muffler and Muffler Stack for Looseness and Damage...4102
Checking Muffler Function...4102
Checking Installed Condition of Cylinder Head and Manifolds...4102
Checking Engine Piping for Damage and Looseness...4102
Air Intake and Exhaust Systems...4102
Cooling System...4102
Fuel System...4102
BELTS...4103
Air Conditioner Compressor Belt...4103
Testing...4103
Adjusting...4103
Alternator Belt...4104
Replacing...4104
DIRECTIONAL LEVER...4106
Special Tool Required...4106
Checking Operating Effort...4106
Checking Stroke...4106
POWER TRAIN OIL PRESSURES...4107
Oil Pressure Measuring Points And Gauges...4109
Special Tools Required...4109
Measuring Transmission Hydraulic Operating Pressures...4110
Transmission Main Relief Pressure...4110
Torque Converter Relief Pressure (Inlet)...4111
Torque Converter Outlet Pressure...4112
Lockup Clutch Pressure (Lockup Clutch Specification)...4113
F (Forward) Clutch Pressure...4114
R (Reverse) Clutch Pressure...4115
1st Clutch Pressure...4116
2nd Clutch Pressure...4117
3rd Clutch Pressure...4118
9. After completing the measurement, remove the measurement tool and make sure that the machine is back to normal condition...4118
4th Clutch Pressure...4119
Lubrication Pressure...4120
Adjusting Power Train Oil Pressures...4121
Transmission Main Relief Valve...4121
TRANSMISSION...4122
Speed Sensor...4122
Flushing Transmission System...4123
Torque Converter, Transmission, and Hydraulic Circuit...4123
Moving the Machine if Transmission Valve Fails...4125
Moving the Machine...4126
Special Tool Required...4126
STEERING SYSTEM...4129
Steering Stop Valve...4129
Testing...4129
Adjusting...4129
Steering Wheel...4131
Special Tool Required...4131
Measuring Play in Steering Wheel...4131
Measuring Operating Effort of Steering Wheel...4131
Measuring Operating Time of Steering Wheel...4132
Steering Oil Pressure...4133
Special Tools Required...4133
Measuring Steering Relief Pressure...4133
Measuring Steering Pilot Circuit Pressure...4134
Adjusting Steering Relief Pressure...4135
Adjusting Steering Control Circuit Pressure...4135
Bleeding Air from Steering Circuit...4136
Bleeding Air from Steering Pump...4136
Bleeding Air from Steering Cylinder Circuit...4136
Steering Column Lock Lever...4137
HYDRAULIC DRIVE FAN...4139
Special Tools Required...4139
Measurement Conditions:...4139
Measuring Fan Speed...4139
Measuring Fan Drive Oil Pressure...4140
Bleeding Air from Hydraulic Drive Fan Circuit...4141
Special Tools Required...4141
Bleeding Air From Fan Pump...4141
Bleeding Air from Fan Motor Circuit...4142
WHEEL BRAKE SYSTEM...4143
Measuring Brake Performance...4144
Measurement Conditions...4144
Accumulator Charge...4145
Special Tools Required...4145
Measurement Conditions...4145
Measuring...4145
Adjusting...4146
Measuring Brake Oil Pressure...4147
Special Tools Required...4147
Brake Test Kit S...4148
Testing Wear of Wheel Brake Disc...4149
Special Tools Required...4149
Bleeding Air from Brake Circuit...4150
Releasing Residual Pressure in Brake Accumulator Circuit...4150
PARKING BRAKE SYSTEM...4151
Testing Parking Brake Performance...4151
Measurement Conditions...4151
Measuring Parking Brake Oil Pressure...4153
Special Tools Required...4153
Measurement Conditions...4153
Checking Wear of Parking Brake Disc...4155
Special Tools Required...4155
Releasing Parking Brake Manually...4156
WORK EQUIPMENT SYSTEM...4157
Work Equipment Control Levers...4157
Special Tools Required...4157
Measurement Conditions...4157
Measuring Operating Effort...4157
Measuring Stroke...4157
PPC Oil Pressure...4158
Special Tools Required...4158
Measurement Condition...4158
Measuring PPC Valve Basic Pressure...4158
Measuring PPC Valve Output Pressure...4159
Replacing PPC Relief Valve...4160
Work Equipment Hydraulic Pressure...4161
Special Tools Required...4161
Measurement Condition...4161
Combination of Actuator And Valve...4161
Preparation Work...4161
Measuring Work Equipment Relief Pressure...4162
Measuring Unload Pressure...4163
Measuring Work Equipment LS Differential Pressure...4164
Adjusting Work Equipment Relief Pressure...4165
Adjusting LS Differential Pressure...4165
Bleeding Air from Work Equipment Circuit...4166
From Work Equipment Pump (Piston Pump)...4166
From Hydraulic Cylinder...4166
Releasing Residual Pressure in Work Equipment Circuit...4167
From Circuit Between Hydraulic Cylinders and Control Valve...4167
From ECSS (Travel Damper) Circuit...4167
Work Equipment Positioners...4168
Bucket Positioner...4168
Measurement Conditions...4168
Testing...4168
Adjusting Clearance...4168
Adjusting Mounting Position (Stopping Position)...4168
Boom Kickout...4169
Testing...4169
Adjusting...4169
Proximity Switch Operation Pilot Lamp...4170
ELECTRICAL SYSTEM TROUBLESHOOTING...4171
Procedure for Testing Diodes...4171
When Using Digital Type Circuit Tester...4171
When Using Analog Type Circuit Tester...4172
Preparation for Troubleshooting Electric System...4173
Machine Monitor...4173
Transmission Controller...4174
Work Equipment Controller (if equipped)...4175
KOMTRAX Terminal...4175
Sensors...4176
Boost Pressure and Temperature Sensor (BOOST PRESS & IMT)...4176
Supply Pump IMV Solenoid (FUEL REGULATOR)...4176
Common Rail Pressure Sensor (FUEL RAIL PRESS)...4177
Engine Coolant Temperature Sensor (COOLANT TEMP)...4177
KOMTRAX TERMINAL SYSTEM...4178
Terminal Installed at Plant Before Shipment...4178
Terminal Retrofitted Machine After Shipment...4178
Starting Operation...4178
Station Opening Check in Machine Side...4178
Application for the Start of Use...4181
Request for Orbcomm Terminal Activation Form...4182
Komtrax Terminal Lamps...4183
Checking Antennas...4184
Checking Terminal LED Displays...4184
Display Contents of 7-segment And Dot For CPU...4185
MACHINE MONITOR SYSTEM...4186
Adjusting Machine Monitor...4186
Adjusting for Replaced, Reassembled, or Added Sensor/Controller...4187
Adjustment for User’s Needs...4188
Special Functions of Machine Monitor (EMMS)...4189
Normal and Special Functions of Machine Monitor...4189
Functions and Flow of Service Mode...4190
Operator Mode...4193
Service Meter/Clock Display Function (1)...4193
Load Meter Function (2) (if equipped)...4193
Odometer Display Function (3)...4193
Maintenance Monitoring Function (4)...4194
1. Filter, oil replacement time display (automatic display)...4194
2. Resetting replacement time (selection menu)...4194
Telephone Number Input Function (5)...4194
Language Selection Function (6)...4194
Monitor Brightness Adjustment Function (7)...4194
Time Adjustment Function (8)...4195
Travel Speed/Engine Speed Display Selecting Function (9)...4195
Travel Speed/Engine Speed Display/Non-Display Selecting Function (10)...4195
Action Code Display Function (11)...4196
Action Codes and Actions Alerted to Operator...4196
Failure Code Display Function (12)...4196
Service Mode...4198
Switching to Service Mode and Screen Display (1)...4198
Electrical System Fault History Display Function (ELECTRIC FAULT) (2)...4200
Mechanical System Fault History Display Function (MACHINE FAULT) (3)...4202
Real-Time Monitoring Function (REAL-TIME MONITOR) (4)...4203
Real-Time Monitoring Code Tables...4206
Monitor Panel (Machine Monitor System)...4206
MON (Mechanical Monitor System)...4211
Transmission (Transmission Controller System)...4213
TM: Detailed Data for Input and Output Signals (Transmission Controller System)...4219
WRK (Work Equipment Controller Display)...4223
ENG (Engine Controller System)...4231
Engine Reduced-Cylinder Function (CYLINDER CUT-OUT) (5)...4233
No-Injection Cranking Function (6)...4234
Adjustment Function (TUNING) (7)...4235
Adjustment Function...4235
Adjustment of Transmission ECMV Current (7-1)...4236
Setting of Transmission Initial Learning (7-2)...4240
Adjustment of Transmission L Mode Gearshift Point (7-3)...4243
Adjustment of Lift Arm Angle Sensor (Raise) (for EPC lever) (7-4)...4246
Adjustment of Lift Arm Raise Lever and Variations in the Dead Zone of EPC (7-5)...4246
Adjustment of Lift Arm Lower (Float) Lever and Variations in the Dead Zone of EPC (7-6)...4246
Adjustment of Bucket Tilt Lever and Variations in the Dead Zone of EPC (7-7)...4246
Adjustment of Bucket Dump EPC Starting Current (7-8)...4247
Adjustment of 3-spool Valve EPC Cylinder Extraction Lever and Variations in the Dead Zone of EPC (7-9)...4247
Adjustment of 3-spool valve EPC Cylinder Retraction Lever and Variations in the Dead Zone of EPC (7-10)...4247
Adjustment of Joystick Steering Right Lever and Variations at EPC Starting Point (7-11)...4247
Adjustment of Joystick Steering Left Lever and Variations at EPC Starting Point (7-12)...4247
Modification of Lift Arm Lever Pattern (7-13)...4247
Modification of Bucket Lever Pattern (7-14)...4247
Adjustment of Lift Arm Lower Stop Modulation (7-15)...4247
Adjustment of Pump Cutoff Pressure in Lift Arm Raise (7-16)...4247
Adjustment of Lift Arm Angle Sensor (Raise) (7-17)...4247
Adjustment of Lift Arm Angle Sensor (Lower) (7-18)...4248
Adjustment of 2-stage Low Idle Throttle Position (7-19)...4250
Adjustment of Interval of Fan Automatic Reverse Operation (Automatic Reverse Fan) (7-20)...4250
Adjustment of Continuance of Fan Automatic Reverse Operation (Automatic Reverse Fan) (7-21)...4251
Maintenance Monitoring Function (8)...4252
Changing Maintenance Interval Time (8-1)...4252
Selecting Enabling or Disabling Timer by Item (8-2)...4254
Changing Set Default Value (8-3)...4255
Selecting between Timer Stop for All Items and Enable by Item (8-4)...4256
Operating Information Display Function (OPERATION INFO) (9)...4258
Selecting Menu...4258
Optional Device Selecting Function (10)...4261
Optional Component Setting table...4261
Change or Settlement for BOOM TYPE OPTION SELECT (10-1)...4263
Option Setting/Not Setting Selection (10-2)...4264
Setting Tire Deflection Option (10-3)...4264
Storing Option Selection (10-4)...4264
Machine Serial Number Input Function (11)...4265
Model Select Function (12)...4265
Implementing the Model Change...4265
Storing Model Change (12-2)...4266
Initialize Function (13)...4266
PM-CLINIC INSPECTION TABLE...4267
40 TROUBLESHOOTING...4272
POINTS TO REMEMBER WHEN TROUBLESHOOTING...4288
SEQUENCE OF EVENTS IN TROUBLESHOOTING...4290
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE...4291
Precautions when Handling Electrical Equipment...4291
Handling Electronic Control Unit...4296
Points to Remember when Troubleshooting Electrical Circuits...4297
ELECTRIC WIRE CODE...4298
Classification by Thickness...4298
Classification by Color and Code...4298
How to Read Electric Wire Code...4299
Type, Symbol, and Material...4299
Dimensions...4300
HANDLING HYDRAULIC EQUIPMENT...4301
CHECKS BEFORE TROUBLESHOOTING...4303
Categories and Method of Using Troubleshooting Charts...4304
Troubleshooting Individual Electrical Circuits...4305
Chart Use...4307
Chart Tips...4307
Troubleshooting Individual Hydraulic Circuits...4308
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS...4310
X-Type Connectors...4310
SWP-Type Connectors...4312
M-Type Connectors...4314
S-Type Connectors...4316
MIC-Type Connectors...4318
AMP040-Type Connectors...4320
AMP070-Type Connectors...4322
AMP Connector...4324
L-Type Connector...4324
PA-Type Connector...4325
Bendix (MS) Connector...4325
KES1 (Automobile) Connectors...4326
F-Type Connector...4327
Connectors for Relay (Socket-Type)...4328
HD30 Series Connectors...4329
DT Series Connectors...4335
DTM Series Connectors...4337
DTHD Series Connectors...4337
DTP Series Connectors...4338
DRC26 Series Connectors...4339
DRC12, 16 Series Connectors...4341
AMP Connectors for Pump Controller (CH700)...4342
BOSCH Connectors for Engine...4343
SUMITOMO Connectors for Engine...4344
CANNON Connector for Engine...4345
AMP Connectors for Engine...4346
FRAMATOME Connectors for Engine...4347
PACKARD Connectors for Engine...4349
DT Series Connectors for Engine...4350
T-BRANCH BOX and T-BRANCH ADAPTER TABLE...4351
MODE CHART...4356
INFORMATION CONTAINED IN TESTING PROCEDURES...4359
TROUBLESHOOTING BY FAILURE CODE...4361
Failure Code Table...4361
FUSE BOX AND SLOW-BLOW FUSES...4372
Connection Table...4372
Fuse Box 1...4372
Fuse Box 2...4373
Slow-Blow Fuses...4373
FAILURE CODES...4375
1500L0...4376
TORQFLOW Transmission: Double Meshing...4376
15SAL1...4377
ECMV F Clutch: When Command Current is OFF, Fill Signal is ON...4377
15SALH...4379
ECMV F Clutch: When Command Current is ON, Fill Signal is OFF...4379
15SBL1...4381
ECMV R Clutch: When Command Current is OFF, Fill Signal is ON...4381
15SBLH...4383
ECMV R Clutch: When Command Current is ON, Fill Signal is OFF...4383
15SEL1...4385
ECMV 1st Clutch: When Command Current is OFF, Fill Signal is ON...4385
15SELH...4387
ECMV 1st Clutch: When Command Current is ON, Fill Signal is OFF...4387
15SFL1...4389
ECMV 2nd Clutch: When Command Current is OFF, FIll Signal is ON...4389
15SFLH...4391
ECMV 2nd Clutch: When Command Current is ON, Fill Signal is OFF...4391
15SGL1...4393
ECMV 3rd Clutch: When Command Current is OFF, Fill Signal is ON...4393
15GLH...4395
ECMV 3rd Clutch: When Command Current is ON, Fill Signal is OFF...4395
15SHL1...4397
ECMV 4th Clutch: When Command Current is OFF, Fill Signal is ON...4397
15SHLH...4399
ECMV 4th Clutch: When Command Current is ON, Fill Signal is OFF...4399
2F00MA...4401
Parking Brake: Malfunction...4401
2G43ZG...4403
Rear Accumulator: Low Oil Pressure...4403
44K0L4...4405
Bucket Positioner: ON/OFF Signals Disagree...4405
AA1ANX...4409
Air Cleaner: Clogging...4409
AB00L6...4411
Alternator: Signal Disagrees with Operating State of Engine...4411
AB00MA...4413
Alternator: Malfunction...4413
B@BAZG...4415
Engine: Rotation Derating by Low Engine Oil Pressure...4415
B@BAZK...4416
Engine Oil: Low Level...4416
B@BCNS...4417
Engine Coolant: Overheating...4417
B@BCZK...4419
Engine Coolant: Low Level...4419
B@BEBF...4421
Water in Fuel Error...4421
B@C7NS...4423
Brake Oil: Overheating...4423
b@CENS...4425
Torque Converter Oil: Overheating...4425
B@CENS...4427
Torque Converter Oil: Overheating...4427
B@HANS...4429
Hydraulic Oil: Overheating...4429
CA111...4431
Abnormality in Engine Controller...4431
CA115...4432
Engine Ne or Bkup Speed Sensor Error...4432
CA122...4433
Charge Pressure Sensor High Error...4433
CA123...4435
Charge Pressure Sensor Low Error...4435
CA131...4437
Throttle Sensor High Error...4437
CA132...4439
Throttle Sensor Low Error...4439
CA144...4441
Coolant Temperature Sensor High Error...4441
CA145...4443
Coolant Temperature Sensor Low Error...4443
CA153...4445
Charge Temperature Sensor High Error...4445
CA154...4447
Charge Temperature Sensor Low Error...4447
CA155...4449
Derating of Speed by Abnormally High Charge Temperature...4449
CA187...4451
Sensor Power Supply 2 Low Error...4451
CA221...4453
Atmospheric Pressure Sensor High Error...4453
CA222...4455
Atmospheric Pressure Sensor Low Error...4455
CA227...4457
Sensor Power Supply 2 High Error...4457
CA234...4459
Engine Overspeed...4459
CA238...4460
Ne Speed Sensor Power Supply Error...4460
CA271...4461
IMV/PCV1 Short Circuit...4461
CA272...4463
IMV/PCV1 Disconnection...4463
CA322...4465
Injector #1 Open/Short Error...4465
CA323...4467
Injector #5 Open/Short Error...4467
CA324...4469
Injector #3 Open/Short Error...4469
CA325...4471
Injector #6 Open/Short Error...4471
CA331...4473
Injector #2 Open/Short Error...4473
CA332...4475
Injector #4 Open/Short Error...4475
CA342...4477
Calibration Code Inconsistency...4477
CA351...4479
Injectors Drive Circuit Error...4479
CA352...4481
Sensor Power Supply 1 Low Error...4481
CA386...4483
Sensor Power Supply 1 High Error...4483
CA428...4485
Abnormally High Level in Water Sensor...4485
CA429...4487
Abnormally Low Level in Water Sensor...4487
CA431...4489
Idle Validation Switch Error...4489
CA432...4493
Idle Validation Action Error...4493
CA435...4495
Engine Oil Pressure Switch Error...4495
CA441...4497
Battery Voltage Low Error...4497
CA442...4501
Battery Voltage High Error...4501
CA449...4503
Common Rail Pressure High Error 2...4503
CA451...4507
Common Rail Pressure Sensor High Error...4507
CA452...4509
Common Rail Pressure Sensor Low Error...4509
CA488...4511
Derating of Torque by Abnormally High Charge Temperature...4511
CA553...4512
Common Rail Pressure High Error 1...4512
CA559...4513
Supply Pump Pressure Very Low Error 1...4513
CA689...4515
Engine Ne Speed Sensor Error...4515
CA731...4517
Engine Bkup Speed Sensor Phase Error...4517
CA757...4518
All Continuous Data Lost Error...4518
CA778...4521
Engine Bkup Speed Sensor Error...4521
CA1633...4523
KOMNET Datalink Timeout Error...4523
CA2185...4525
Throttle Sensor Power Supply Voltage High Error...4525
CA2186...4526
Throttle Sensor Power Supply Voltage Low Error...4526
CA2249...4527
Supply Pump Pressure Very Low Error 2...4527
CA2311...4529
Abnormality in IMV Solenoid...4529
CA2555...4531
Intake Heater Relay Disconnection Error...4531
CA2556...4533
Intake Heater Relay Short Circuit Error...4533
D150KA...4535
Emergency Steering Relay: Disconnection...4535
D150KB...4537
Emergency Steering Relay: Short Circuit...4537
D150KY...4539
Emergency Steering Relay: Short Circuit with Power Supply Line...4539
D160KA...4541
Backup Lamp Relay: Disconnection...4541
D160KB...4543
Backup Lamp Relay: Short Circuit...4543
D191KA...4545
Joystick Steering Neutral Safety Relay: Disconnection...4545
D191KB...4547
Joystick Steering Neutral Safety Relay: Short Circuit...4547
D191KY...4549
Joystick Steering Neutral Safety Relay: Short Circuit with Power Supply Line...4549
D192KA...4551
ECSS Solenoid: Disconnection...4551
D192KB...4553
ECSS Solenoid: Short Circuit...4553
D192KY...4555
ECSS Solenoid Relay: Short Circuit with Power Supply Line...4555
D193KA...4557
Joystick Steering Solenoid Cut Relay: Disconnection...4557
D193KB...4559
Joystick Steering Solenoid Cut Relay: Short Circuit...4559
D193KY...4561
Joystick Steering Solenoid Cut Relay: Short Circuit with Power Supply Line...4561
D5ZHKA...4563
Terminal C Signal: Disconnection...4563
D5ZHKB...4567
Terminal C Signal: Short Circuit...4567
D5ZHKZ...4571
Terminal C Signal: Disconnection or Short Circuit...4571
D5ZHL6...4575
Terminal C Signal: Signal Does Not Match Engine Running or Stopped State...4575
DA80L4...4579
Auto-Grease Controller: ON/OFF Signals Disagree...4579
DAF3KK...4581
Machine Monitor: Low Source Voltage (input)...4581
DAF5KP...4583
Machine Monitor: Low Output Voltage...4583
DAFRKR...4587
Machine Monitor: CAN Defective Communication...4587
DAQ0KK...4591
Transmission Controller: Low Source Voltage...4591
DAQ0KT...4593
Transmission Controller: Abnormality in Controller...4593
DAQ2KK...4595
Transmission Controller Load Power Supply Line: Low Source Voltage (input)...4595
DAQ9KQ...4597
Transmission Controller: Disagreement of Model Selection Signals...4597
DAQRKR...4599
CAN Communication with Transmission Controller: Defective Communication...4599
DAQRMA...4602
Transmission Controller Option Setting: Malfunction...4602
DB2RKR...4603
CAN Communication with Engine Controller: Defective Communication...4603
DB90KK...4607
Work Equipment Controller: Low Source Voltage (input)...4607
DB90KT...4609
Work Equipment Controller: Abnormality in Controller...4609
DB92KK...4611
Work Equipment Controller Load Power Supply Line: Low Source Voltage (input)...4611
DD95KX...4613
Work Equipment Controller Power Supply Output: Out-of-Input Signal Range...4613
DB99KQ...4616
Work Equipment Controller: Disagreement in Model Selection Signals...4616
DB9RKR...4617
CAB Communication with Work Equipment Controller: Defective Communication...4617
DB9RMA...4620
Work Equipment Controller Option Setting: Malfunction...4620
DB9RMC...4621
CAN Communication: Defective Operation...4621
DD15LD...4625
Switch (Panel Switch 1 n): Switch is Pressed for Long Time...4625
DD16LD...4627
Switch (Panel Switch 2 ‡): Switch is Pressed for Long Time...4627
DD17LD...4629
Switch (Panel Switch 3 <): Switch is Pressed for Long Time...4629
DD18LD...4631
Switch (Panel Switch 4 >): Switch is Pressed for Long Time...4631
DD1ALD...4633
Remote Positioner Raise/Lower Set Switch (raise): Switch is Pressed for Long Time...4633
DD1BLD...4635
Remote Positioner Raise/Lower Set Switch (lower): Switch is Pressed for Long Time...4635
DD1CLD...4637
Load Meter Subtotal Switch: Switch is Pressed for Long Time...4637
DD1FLD...4639
Load Meter Mode Selector Switch (A/B): Switch is Pressed for Long Time...4639
DD1GLD...4641
Load Meter Mode Selector Switch (+/-): Switch is Pressed for Long Time...4641
DD1HLD...4643
Load Meter Display Selector Switch: Switch is Pressed for Long Time...4643
DD1NLD...4645
Fan Reverse Switch: Switch is Pressed for Long Time...4645
DD1NL4...4647
Fan Automatic Reverse Switch: Switch is Pressed for Long Time...4647
DDB6L4...4649
Parking Brake Switch (Neutralizer): ON/OFF Signals Disagree...4649
DDE5MA...4653
Emergency Steering Drive Switch: Malfunction...4653
DDK3KA...4655
Right FNR Switch: Disconnection...4655
DDK4KA...4658
Joystick Steering FNR Switch: Disconnection...4658
DDK5L4...4661
Joystick Steering Shift UP/DOWN Switch: ON/OFF Signals Disagree...4661
DDK6KA...4663
FNR Lever Switch: Disconnection...4663
DDK6KB...4666
FNR Lever Switch: Short Circuit...4666
DDS5KA...4669
Steering Pressure Switch: Disconnected...4669
DDS5KB...4671
Steering Pressure Switch: Grounded...4671
DDT0L4...4673
Shift Mode Selector Switch: ON/OFF Signals Disagree...4673
DDT4LD...4675
Transmission Cutoff Set Switch: Switch is Pressed for Long Time...4675
DDW9LD...4677
Kickdown Switch: Switch is Pressed for Long Time...4677
DDWLLD...4679
Hold Switch: Switch is Pressed Down for Long Time...4679
DDY0LD...4681
Load Meter Cancel Switch: Switch is Pressed for Long Time...4681
DF10KA...4683
Transmission Shift Lever Switch: Disconnected...4683
DF10KB...4687
Transmission Shift Lever Switch: Short Circuit...4687
DGF1KA...4691
Transmission Oil Temperature Sensor: Disconnected...4691
DGF1KB...4693
Transmission Oil Temperature Sensor: Short Circuit...4693
DGH2KX...4695
Hydraulic Oil Temperature Sensor: Out-of-Input Signal Range...4695
DGR2KA...4697
Rear Brake Oil Temperature Sensor: Disconnected...4697
DGR2KX...4699
Rear Brake Oil Pressure Sensor: Out-of-Input Signal Range...4699
DGT1KX...4701
Torque Converter Oil Temperature Sensor: Out-of-Input Signal Range...4701
DH21KA...4703
Loader Pump Pressure Sensor: Disconnection...4703
DH21KB...4705
Loader Pump Pressure Sensor: Power Supply Line Short...4705
DHPCKX...4707
Lift Arm Cylinder Bottom Pressure Sensor: Out-of-Input Signal Range...4707
DHPDKX...4709
Lift Arm Cylinder Head Pressure Sensor: Out-of-Input Signal Range...4709
DHT1KX...4711
Transmission Cutoff Pressure Sensor: Out-of-Input Signal...4711
DHT8KA...4713
Steering Pump Pressure Sensor: Disconnection...4713
DHT8KB...4715
Steering Pump Pressure Sensor: Short Circuit...4715
DK59KA...4717
Lift Arm EPC Lever Potentiometer (Main): Disconnection...4717
DK59KY...4720
Lift Arm EPC Lever Potentiometer (Main): Short Circuit with Power Supply Line...4720
DK59L8...4724
Lift Arm EPC Lever Potentiometer (Main): Analog Signals Disagree...4724
DK5AKA...4728
Lift Arm EPC Lever Potentiometer (Sub): Disconnection...4728
DK5AKY...4731
Lift Arm EPC Lever Potentiometer (Sub): Short Circuit with Power Supply LIne...4731
DK5BKA...4734
Bucket EPC Lever Potentiometer (Main): Disconnection...4734
DK5BKY...4737
Bucket EPC Lever Potentiometer (Main): Short Circuit with Power Supply Line...4737
DK5BL8...4740
Bucket EPC Lever Potentiometer (Main): Analog Signals Disagree...4740
DK5CKA...4743
Bucket EPC Lever Potentiometer (Sub): Disconnection...4743
DK5CKY...4746
Bucket EPC Lever Potentiometer (Sub): Short Circuit with Power Supply Line...4746
DK5FKA...4749
Joystick Steering EPC Lever Potentiometer (Main): Disconnection...4749
DK5FKY...4752
Joystick Steering EPC Lever Potentiometer (Main): Short Circuit with Power Supply Line...4752
DK5GKA...4755
Joystick Steering EPC Lever Potentiometer (Sub): Disconnection...4755
DK5GKY...4758
Joystick Steering EPC Lever Potentiometer (Sub): Short Circuit with Power Supply Line...4758
DK5FL8...4761
Joystick Steering EPC Lever Potentiometer (Main): Analog Signals Disagree...4761
DKA0KA...4764
Lift Arm Angle Sensor: Disconnection...4764
DKA0KY...4768
Lift Arm Angle Sensor: Short Circuit with Power Supply Line...4768
DKA0L0...4770
Lift Arm Angle Sensor: Double Meshing...4770
DLT3KA...4772
Transmission Output Shaft Speed Sensor: Disconnection...4772
DLT3LC...4774
Transmission Output Shaft Speed Sensor: Out-of-Input Signal Range...4774
DT20KB...4776
Transmission Cutoff Indicator Lamp: Short Circuit...4776
DUM1KB...4778
Remote Positioner Raise Set Indicator Lamp: Short Circuit...4778
DUM2KB...4780
Remote Positioner Lower Set Indicator Lamp: Short Circuit...4780
DV00KB...4782
Alarm Buzzer: Short Circuit...4782
DW4PKA...4784
Lift Arm Raise EPC Solenoid: Disconnection...4784
DW4PKB...4786
Lift Arm Raise EPC Solenoid: Short Circuit...4786
DW4PKY...4788
Lift Arm Raise EPC Solenoid: Short Circuit with Power Supply Line...4788
DW4QKA...4790
Lift Arm Lower EPC Solenoid: Disconnection...4790
DW4QKB...4792
Lift Arm Lower EPC Solenoid: Short Circuit...4792
DW4QKY...4794
Lift Arm Lower EPC Solenoid: Short Circuit with Power Supply Line...4794
DW4RKA...4796
Bucket Tilt EPC Solenoid: Disconnection...4796
DW4RKB...4798
Bucket Tilt EPC Solenoid: Short Circuit...4798
DW4RKY...4800
Bucket Tilt EPC Solenoid: Short Circuit with Power Supply Line...4800
DW4SKA...4802
Buck Dump EPC Solenoid: Disconnection...4802
DW4SKB...4804
Bucket Dump EPC Solenoid: Short Circuit...4804
DW4SKY...4806
Bucket Dump EPC Solenoid: Short Circuit with Power Supply Line...4806
DW7BKA...4808
Fan Reverse Solenoid: Disconnection...4808
DW7BKB...4810
Fan Reverse Solenoid: Short Circuit...4810
DW7BKY...4812
Fan Reverse Solenoid: Short Circuit with Power Supply Line...4812
DWM1KA...4814
Work Equipment Neutral Lock Solenoid: Disconnection...4814
DWM1KB...4816
Work Equipment Neutral Lock Solenoid: Short Circuit...4816
DWM1KY...4818
Work Equipment Neutral Lock Solenoid: Short Circuit with Power Supply Line...4818
DWN6KA...4820
Lift Arm Raise Magnet Detent Solenoid: Disconnection...4820
DWN6KB...4822
Lift Arm Raise Magnet Detent Solenoid: Short Circuit...4822
DWN6KY...4824
Lift Arm Raise Magnet Detent Solenoid: Short Circuit with Power Supply Line...4824
DWN7KA...4826
Lift Arm Float Magnet Detent Solenoid: Disconnection...4826
DWN7KB...4828
Lift Arm Float Magnet Detent Solenoid: Short Circuit...4828
DWN7KY...4830
Lift Arm Float Magnet Detent Solenoid: Short Circuit with Power Supply Line...4830
DWN8KA...4832
Bucket Tilt Magnet Detent Solenoid: Disconnection...4832
DWN8KB...4834
Bucket Tilt Magnet Detent Solenoid: Short Circuit...4834
DWN8KY...4836
Bucket Tilt Magnet Detent Solenoid: Shorted with the Power Source...4836
DX16KA...4838
Fan Pump EPC Solenoid: Disconnection...4838
DX16KB...4840
Fan Pump EPC Solenoid: Short Circuit...4840
DX16KY...4842
Fan Pump EPC Solenoid: Short Circuit with Power Supply Line...4842
DXA1KA...4844
Loader Pump EPC Solenoid: Disconnection...4844
DXH1KA...4846
Lockup ECMV Solenoid: Disconnection...4846
DXH1KB...4848
Lockup ECMV Solenoid: Short Circuit...4848
DXH1KY...4850
Lockup ECMV Solenoid: Short Circuit with Power Supply Line...4850
DXH4KA...4852
1st Clutch ECMV Solenoid: Disconnection...4852
DXH4KB...4854
1st Clutch ECMV Solenoid: Short Circuit...4854
DXH4KY...4856
1st Clutch ECMV Solenoid: Short Circuit with Power Supply Line...4856
DXH5KA...4858
2nd Clutch ECMV Solenoid: Disconnection...4858
DXH5KB...4860
2nd Clutch ECMV Solenoid: Short Circuit...4860
DXH5KY...4862
2nd Clutch ECMV Solenoid: Short Circuit with Power Supply Line...4862
DXH6KA...4864
3rd Clutch ECMV Solenoid: Disconnection...4864
DXH6KB...4866
3rd Clutch ECMV Solenoid: Short Circuit...4866
DXH6KY...4868
3rd Clutch ECMV Solenoid: Short Circuit with Power Supply Line...4868
DXH7KA...4870
R Clutch ECMV Solenoid: Disconnection...4870
DXH7KB...4872
R Clutch ECMV Solenoid: Short Circuit...4872
DXH7KY...4874
R Clutch ECMV Solenoid: Short Circuit with Power Supply Line...4874
DXH8KA...4876
F Clutch ECMV Solenoid: Disconnection...4876
DXH8KB...4878
F Clutch ECMV Solenoid: Short Circuit...4878
DXH8KY...4880
F Clutch ECMV Solenoid: Short Circuit with Power Supply Line...4880
DXHHKA...4882
4th Clutch ECMV Solenoid: Disconnection...4882
DXHHKB...4884
4th Clutch ECMV Solenoid: Short Circuit...4884
DXHHKY...4886
4th Clutch ECMV Solenoid: Short Circuit with Power Supply Line...4886
DXHLKA...4888
Joystick Steering Right EPC Solenoid: Disconnection...4888
DXHLKB...4890
Joystick Steering Right EPC Solenoid: Short Circuit...4890
DXHLKY...4892
Joystick Steering Right EPC Solenoid: Short Circuit with Power Supply Line...4892
DXHMKA...4894
Joystick Steering Left EPC Solenoid: Disconnection...4894
DXHMKB...4896
Joystick Steering Left EPC Solenoid: Short Circuit...4896
DXHMKY...4898
Joystick Steering Left EPC Solenoid: Short Circuit with Power Supply Line...4898
DY30MA...4900
Motor-Driven Emergency Steering Pump Failure (during Operation of machine)...4900
DY30MC...4903
Motor-Driven Emergency Steering Pump Failure (Malfunction in Manual Mode)...4903
TROUBLESHOOTING: E-MODE...4906
E-1...4908
Engine Does Not Start...4908
E-2...4914
Wiper Does Not Operate...4914
E-3...4918
Windshield Washer Does Not Operate...4918
E-4...4922
Headlamp, Clearance Lamp, Tail Lamp, and License Lamp Do Not Light Up or Go Off...4922
E-5...4930
Working Lamp Does Not Light Up or Go Off...4930
E-6...4936
Turn Signal Lamp and Hazard Lamp Do Not Light Up or Go Off...4936
E-7...4943
Brake Lamp Does Not Light or It Keeps Lighting Up...4943
E-8...4946
Backup Lamp Does Not Light or It Keeps Lighting Up...4946
E-9...4949
Backup Buzzer Does Not Sound or It Keeps Sounding...4949
E-10...4952
Horn Does Not Sound or It Keeps Sounding...4952
E-11...4955
Alarm Buzzer Does Not Sound or It Keeps Sounding...4955
E-12...4957
Air Conditioner Does Not Operate or Stop...4957
E-13...4961
KOMTRAX System Does Not Work Properly...4961
Indicator Lamps of KOMTRAX Terminal...4963
E-14...4965
When Kickdown Switch is Turned On, Kickdown Operation Does Not Start...4965
E-15...4967
When Hold Switch is Pressed, Holding Operation Does Not Start...4967
E-16...4969
Transmission Kept in Neutral or Brake Drags when Directional Lever is Operated While Parking Brake is Applied...4969
E-17...4971
Transmission Cutoff Mode Cannot Be Set or Reset...4971
E-18...4973
Transmission Cutoff Set Cannot be Reset...4973
E-19...4975
FN Switch Mode Cannot Be Set or Reset...4975
E-20...4977
Fan Reverse Function Cannot Be Used or Reset...4977
E-21...4979
Discharge from Loader Pump Does Not Rise from Minimum Level...4979
E-22...4981
ECSS Function Cannot Be Used or Reset...4981
E-23...4983
When Parking Brake is Turned On, Parking Brake Indicator Lamp Does Not Light Up...4983
E-24...4987
When Emergency Brake Operates, Brake Oil Pressure Caution Lamp Does Not Operate...4987
E-25...4989
Air Cleaner Clogging Indicator Lamp Does Not Light Up...4989
E-26...4991
Radiator Coolant Level Caution Lamp Does Not Light Up...4991
E-27...4993
Hydraulic Oil Temperature Gauge Does Not Rise and Hydraulic Oil Temperature Caution Lamp Does Not Light Up...4993
E-28...4995
Torque Converter Oil Temperature Gauge Does Not Rise and Torque Converter Oil Temperature Caution Lamp Does Not Light Up...4995
E-29...4997
Steering Oil Pressure Caution Lamp Does Not Light Up...4997
E-30...4999
Abnormality in Switch (n) (Panel Switch 1) Input...4999
E-31...5001
Abnormality in Switch (‡) (Panel Switch 2) Input...5001
E-32...5003
Abnormality in Switch (<) (Panel Switch 3) Input...5003
E-33...5005
Abnormality in Switch (>) (Panel Switch 4) Input...5005
Troubleshooting Electrical System...4906
Information in Troubleshooting Table...4906
TROUBLESHOOTING: H-MODE...5007
H-1...5013
Machine Does Not Start...5013
H-2...5015
Torque Converter Lockup is Not Switched OFF (Engine Stalls)...5015
H-3...5016
Torque Converter Lockup is Not Switched ON...5016
H-4...5017
Travel Speed is Slow, Thrusting Force is Weak, Uphill Traveling Power is Weak, Gear is Not Shifted...5017
H-5...5021
Large Shocks When Starting and Shifting Gears...5021
H-6...5025
Large Time Lag When Starting and Shifting Gear...5025
H-7...5029
Torque Converter Oil Temperature is High...5029
H-8...5030
Steering Does Not Turn...5030
H-9...5031
Steering Does Not Turn (Joystick Steering, if equipped)...5031
H-10...5032
Steering Response is Poor...5032
H-11...5033
Steering, Turning Response is Poor (Joystick Steering, if Equipped)...5033
H-12...5034
Steering is Heavy...5034
H-13...5035
When Machine Turns, It Shakes or Jerks...5035
H-14...5036
When Machine Turns, It Shakes or Jerks (Joystick Steering, if Equipped)...5036
H-15...5037
Wheel Brake Does Not Work or Does Not Work Well...5037
H-16...5038
Wheel Brake is Not Released or It Drags...5038
H-17...5039
Parking Brake Does Not Work or Does Not Work Well...5039
H-18...5040
Parking Brake is Not Released or It Drags...5040
H-19...5041
Lift Arm Does Not Rise...5041
H-20...5042
Lift Arm Speed is Low or Rising Force is Insufficient...5042
H-21...5043
When Rising, Lift Arm Starts to Move Slowly at a Specific Height...5043
H-22...5043
Lift Arm Cylinder Cannot Hold Down Bucket (Bucket Floats)...5043
H-23...5043
Hydraulic Drifts of the Lift Arm Are Large...5043
H-24...5044
Lift Arm Wobbles During Operation...5044
H-25...5045
Bucket Does Not Tilt Back...5045
H-26...5046
Bucket Speed is Low or Tilting-Back Force Is Insufficient...5046
H-27...5047
Bucket Starts to Operate Slowly in the Midst of Tilting Back...5047
H-28...5047
Bucket Cylinder Cannot Hold Down the Bucket...5047
H-29...5047
Hydraulic Drifts of the Bucket Are Large...5047
H-30...5048
Bucket Wobbles During Travel with Load...5048
H-31...5049
Lift Arm and Bucket Control Levers Do Not Move Smoothly and Are Heavy...5049
H-32...5050
During Operation of Machine, Engine Speed Drops Remarkably or Engine Stalls...5050
H-33...5050
Large Shocks When Work Equipment Starts and Stops...5050
H-34...5050
When Work Equipment Circuit is Relieved Singly, Other Work Equipment Moves...5050
Troubleshooting Hydraulic and Mechanical Systems...5007
Using Troubleshooting Chart...5007
Failure Codes and Causes Table...5009
50 DISASSEMBLY AND ASSEMBLY...5052
HOW TO READ THIS MANUAL...5056
Removal and Installation of Assemblies...5056
Disassembly and Assembly of Assemblies...5058
COATING MATERIALS LIST...5060
SPECIAL TOOLS LIST...5063
SKETCHES OF SPECIAL TOOLS...5066
CONNECTOR REPAIR PROCEDURES...5072
Stripping Insulation...5072
Wire Inspection...5072
Contact Terminal Removal (HD30 Type)...5073
Crimping Contact Terminal (HD30 Type)...5074
Insertion Of Contact Terminal (HD30 Type)...5075
Contact Terminal Removal (DT Type)...5076
Crimping Contact Terminal (DT Type)...5077
Insertion Of Contact Terminal (DT Type)...5078
ENGINE AND COOLING SYSTEM...5079
Alternator...5079
Crankshaft...5079
Camshaft...5079
Engine Front Seal...5079
Engine Oil Cooler...5079
Engine Rear Seal...5079
Starting Motor...5079
Thermostat...5079
Turbocharger...5079
Water Pump...5079
Cylinder Head...5080
Removal...5080
Installation...5086
Engine Hood...5093
Removal...5093
Installation...5095
Radiator...5096
Removal...5096
Installation...5097
Air Aftercooler...5098
Removal...5098
Installation...5099
Hydraulic Oil Cooler...5100
Removal...5100
Installation...5101
Engine...5102
Removal...5102
Installation...5107
Cooling Fan and Fan Motor...5109
Removal...5109
Installation...5112
FUEL SUPPLY SYSTEM...5113
Fuel Supply Pump...5113
Removal...5113
Installation...5114
Fuel Injector...5115
Removal...5115
Installation...5118
Fuel Tank...5123
Removal...5123
Installation...5125
POWER TRAIN...5126
Torque Converter and Transmission Assembly...5126
Removal...5126
Installation...5133
Torque Converter (Standard Specification)...5134
Disassembly...5134
Assembly...5137
Torque Converter (Lockup Specification)...5140
Disassembly...5140
Assembly...5143
Transmission...5148
Disassembly...5148
Assembly...5158
Clutch Pack...5169
Forward and Reverse Clutch Pack: Disassembly...5169
1st and 4th Clutch Pack: Disassembly...5173
2nd and 3rd Gear Clutch Pack: Disassembly...5176
Forward and Reverse Clutch Pack: Assembly...5182
1st and 4th Clutch Pack: Assembly...5186
2nd and 3rd Clutch Pack: Assembly...5190
Parking Brake...5195
Disassembly...5195
Assembly...5200
Front Axle...5207
Removal...5207
Installation...5208
Rear Axle...5209
Removal...5209
Installation...5212
Axle Housing...5214
Disassembly...5214
Assembly...5219
Differential Assembly...5226
Disassembly...5226
Assembly...5235
STEERING SYSTEM...5251
Steering Valve Assembly...5251
Removal...5251
Installation...5253
BRAKING SYSTEM...5254
Parking Brake Discs and Plates...5254
Removal...5254
Installation...5256
UNDERCARRAGE AND FRAME...5257
Center Hinge Pin...5257
Removal...5257
Installation...5262
Counterweight...5267
Removal...5267
Installation...5269
HYDRAULIC SYSTEM...5270
Work Equipment Control Valve...5270
Removal...5270
Installation...5272
Power Train Pump and Work Equipment Pump Assembly...5273
Removal...5273
Installation...5273
Steering Pump And Cooling Fan Pump Assembly...5274
Removal...5274
Installation...5275
Hydraulic Tank...5276
Removal...5276
Installation...5279
WORK EQUIPMENT...5280
Work Equipment Assembly...5280
Removal...5280
Installation...5283
Hydraulic Cylinder...5285
Disassembly...5285
Assembly...5289
CAB AND ATTACHMENTS...5294
Cab and Floor Frame...5294
Removal...5294
Installation...5297
Cab Glass (Stuck Glass)...5298
Removal...5298
Installation...5299
Operator Seat Assembly (Standard Specification) (ISRING HAUSEN)...5307
Disassembly...5307
Assembly...5314
Operator Seat Assembly (GRAMMER)...5319
Upper Seat...5319
Suspension...5327
AIR CONDITIONER UNIT ASSEMBLY...5355
Removal...5355
Installation...5359
ELECTRICAL SYSTEM...5360
Engine Controller Assembly...5360
Removal...5360
Installation...5360
90 DIAGRAMS AND SCHEMATICS...5362
AUTOMATIC GREASING...5364
Auto-Grease Circuit Diagram...5364
HYDRAULIC SYSTEM...5365
Power Train Hydraulic Circuit Diagram...5365
Without Lockup Clutch...5365
With Lockup Clutch...5365
Hydraulic Circuit Diagram...5366
ELECTRICAL SYSTEM...5367
Machine Monitor System Circuit Diagram...5367
Transmission Controller System Circuit Diagram...5368
Work Equipment Controller System Diagram...5369
Work Equipment Controller System Electrical Circuit Diagram...5370
Electrical Circuit Diagram (1/14)...5371
Electrical Circuit Diagram (2/14)...5372
Electrical Circuit Diagram (3/14)...5373
Electrical Circuit Diagram (4/14)...5374
Electrical Circuit Diagram (5/14)...5375
Electrical Circuit Diagram (6/14)...5376
Electrical Circuit Diagram (7/14)...5377
Electrical Circuit Diagram (8/14)...5378
Electrical Circuit Diagram (9/14)...5379
Electrical Circuit Diagram (10/14)...5380
Electrical Circuit Diagram (11/14)...5381
Electrical Circuit Diagram (12/14)...5382
Electrical Circuit Diagram (13/14)...5383
Electrical Circuit Diagram (14/14)...5384
Connector List and Stereogram...5385
Chassis...5385
Engine and Transmission...5386
Operator's Compartment...5387
CEBM025604 - Wheel Loader WA380-7 Shop Manual...5388
CEBM025604 WA380-7 S/N A64001 and UP...5388
CONTENTS...5389
00 FOREWORD...5411
SAFETY...5411
Safety Notice...5411
Important Safety Notice...5411
General Precautions...5411
Preparations For Work...5412
Precautions During Work...5412
GENERAL...5415
HOW TO READ THE SHOP MANUAL...5416
Volumes...5416
Distribution And Updating...5416
Filing Method...5416
Revised Edition Mark...5416
Revisions...5416
Symbols...5416
Unit...5416
HOISTING INSTRUCTIONS...5417
Hoisting...5417
Making Signs...5417
Precautions...5417
Precautions for Sling Work...5417
Precautions for Using Mobile Crane...5418
Precautions for Using Overhead Hoist Crane...5418
Selecting Wire Ropes...5420
HANDLING ELECTRIC EQUIPMENT AND HYDRAULIC COMPONENTS...5421
Points to Remember When Handling Electric Equipment...5421
Points to Remember When Handling Hydraulic Equipment...5433
PUSH PULL COUPLER...5435
Type 1...5435
Disconnection...5435
Connection...5435
Type 2...5436
Disconnection...5436
Connection...5436
Type 3...5437
Disconnection...5437
Connection...5437
EXPLANATION OF MAINTENANCE STANDARD TERMS...5438
HANDLING OF FUEL SYSTEM DEVICES...5439
HANDLING OF INTAKE SYSTEM PARTS...5440
STANDARD TIGHTENING TORQUE...5441
Bolts and Nuts...5441
Tightening Torque of Hose Nuts...5442
Tightening Torque of Split Flange Bolts...5442
Tightening Torque for Flared Nuts...5442
Tightening Torques for Split Flanged Bolts...5443
Tightening Torques for O-ring Boss Piping Joints...5443
Table Of Tightening Torques for O-ring Boss Plugs...5443
Tightening Torque for Hoses (Taper Seal Type and Face Seal Type)...5444
Tightening Torque for Face Seal Joints...5444
For 102, 107, and 114 Engine Series (Bolts and Nuts)...5444
For 102, 107, and 114 Engine Series (Eye Joints)...5445
For 102, 107, and 114 Engine Series (Taper Screws)...5445
ELECTRIC WIRE CODE...5446
Classification By Thickness...5446
Classification By Color And Code...5446
How To Read Electric Wire Code...5447
PRECAUTIONS FOR OPERATIONS...5451
Precautions When Carrying Out Removal Work...5451
Precautions When Carrying Out Installation Work...5452
Precautions When Completing the Operation...5453
CONVERSION TABLES...5454
Method Of Using The Conversion Table...5454
COATING MATERIALS...5460
LIST OF ABBREVIATIONS...5462
List of Abbreviations Used in the Shop Manual...5462
List of Abbreviations Used in the Circuit Diagrams...5466
01 GENERAL...5468
SPECIFICATIONS...5469
Dimension Drawing...5469
Specification Tables...5471
WEIGHT TABLE...5477
FUEL, COOLANT, AND LUBRICANTS...5479
10 STRUCTURE AND FUNCTION...5482
ENGINE AND COOLING SYSTEM...5491
Engine Related Parts...5491
KVGT...5493
Operation...5494
EGR System Piping Drawing...5499
Function...5500
EGR System Circuit Diagram...5501
EGR Valve...5502
Structure...5502
Operation...5503
EGR Cooler...5504
Operation...5504
KCCV Layout Drawing...5505
Operation...5506
KCCV Ventilator...5507
Function...5507
Operation...5508
CDR Valve...5508
KDPF...5509
Function...5511
Types of Regeneration...5511
Cooling System...5513
Specification...5514
Cooling Fan Pump...5515
Specification...5517
Function...5518
Operation...5518
Servo Valve...5519
Function...5520
Operation...5520
Cooling Fan Motor System...5521
Specifications...5521
Hydraulic Motor...5523
Suction Valve...5524
Function...5524
Operation...5524
Reversible Valve...5525
Safety Valve...5526
POWER TRAIN SYSTEM...5527
Power Train System...5527
System Diagram...5529
Drive Shaft System...5531
Function...5531
Power Train Piping System...5532
Transmission Control...5533
Function...5534
Torque Converter...5535
Specification...5535
Power Transmitting Route...5536
Oil Flow...5537
Transmission...5539
Forward and Reverse Clutches...5544
1st and 4th Clutches...5545
2nd and 3rd Clutches...5546
Structure...5546
Operation of Clutch Pack...5548
Power Transmitting Route...5549
Forward 1st...5549
Forward 2nd...5551
Forward 3rd...5553
Forward 4th...5555
Reverse 1st...5557
Transmission Control Valve...5559
Function...5560
Forward and Reverse Clutch ECMV and Gear Speed Clutch ECMV...5561
ECMV For Gear Speed Clutch...5562
Lockup Clutch ECMV...5565
ECMV for Lockup Clutch...5566
Operation...5566
Main and Torque Converter Relief Valve System...5568
Function...5569
Operation...5569
DRIVE AXLE SYSTEM...5571
Front Axle Assembly...5571
Rear Axle Assembly...5572
Front Differential...5573
Rear Differential...5574
Operation...5575
Limited Slip Differential...5576
Operation...5576
Final Drive...5579
STEERING SYSTEM...5581
Layout of Steering Devices...5581
Steering Column...5582
Steering Pump...5583
Pump Body...5585
Specification...5588
Operation...5588
Servo Valve...5590
LS Valve...5593
PC Valve...5593
Steering Valve...5597
Operation of Flow Amplifier...5599
Operation of Flow Control Spool...5600
Operation of Steering Valve...5602
Steering Relief Valve...5605
Overload Relief Valve...5606
Relief Valve...5607
Orbitrol Valve...5608
Stop Valve...5612
Emergency Steering Motor...5613
Function...5613
Specifications...5613
Emergency Steering Pump...5614
Specification...5614
BRAKE SYSTEM...5615
Layout of brake parts...5615
Charge Valve...5616
Brake Valve...5622
Function...5622
Accumulator (for Brakes)...5627
Function...5627
Specifications...5627
Brakes...5628
Front Brake...5628
Rear Brake...5629
Operation...5630
Parking Brake System...5631
Brake Control...5631
Parking Brake Unit...5632
Parking Brake Solenoid Valve...5633
Emergency Parking Brake Release Valve...5634
UNDERCARRIAGE AND FRAME...5635
Axle Mounting and Center Hinge Pin...5635
Tires...5636
Radial Ply Tire...5636
Bias Tire...5637
HYDRAULIC SYSTEM...5639
Hydraulic Component Layout...5639
Work Equipment Control Lever System...5641
3-Lever Type...5641
Multi-Function Mono-Lever Type...5642
Hydraulic Tank...5643
Specifications...5644
Breather...5644
Double Type Gear Pump...5645
Specification...5645
Function...5645
Work Equipment Pump...5647
Pump Body...5649
Function...5651
Structure...5651
Specification...5652
Operation...5652
Servo Valve...5655
LS Valve...5658
PC Valve...5659
Control Valve...5663
Structure...5672
CLSS...5673
Outline of CLSS...5673
Features...5673
Structure...5673
Basic Principle...5674
Pressure Compensation Control...5675
Function and Operation of Each Valve...5677
Hydraulic Circuit Diagram of Valves...5677
Unload Valve...5678
Work Equipment Valve (Supply of LS Pressure)...5681
LS Bypass Plug...5683
Pressure Compensation Valve...5685
Boom Regeneration Circuit...5689
Variable Back Pressure Valve...5691
ECSS Control Valve...5692
Accumulator Charge Valve...5693
Stabilizer Valve...5697
Work Equipment Lock Solenoid Valve...5702
Accumulator (for PPC Circuit)...5703
Function...5703
Specifications...5703
Accumulator (for ECSS)...5704
WORK EQUIPMENT...5705
Work Equipment Linkage...5705
Bucket...5706
Bucket Positioner and Boom Positioner...5707
CAB AND ITS ATTACHMENTS...5708
ROPS Cab...5708
ELECTRICAL SYSTEM...5709
Engine Control System...5709
Function...5710
Operation...5710
Preheating System...5711
Automatic Preheating System...5711
Manual Preheating System...5712
Engine Power Mode Selector Circuit...5713
Function...5713
Operation...5713
Engine Output Limit Function...5714
Automatic Warm-up Function...5714
Parking Brake Control System...5715
Operation...5715
System Operating Lamp Function...5719
Function...5719
Battery Disconnect Switch Function...5721
Function...5721
Transmission Controller System...5723
Transmission Controller System Diagram...5723
Transmission Gear Shift Control Function...5725
Transmission Protection Function...5743
Engine Control Function...5745
ECSS Function...5755
Directional Switch Control Function...5756
Auto Idle Stop Function...5757
Real-time Monitoring Function Of Transmission Controller...5758
Transmission Controller Self-Diagnosis Function...5758
Work Equipment Control System...5759
Work Equipment Control System Diagram...5759
Work Equipment Control Function...5761
Work Equipment Neutral Lock Function...5762
Neutral Position and Work Equipment Speed...5764
Bucket Priority Control...5765
Boom Stop Modulation...5765
Adjustment of Lever Detent Position and Work Equipment Starting Current...5766
Swash Plate Control Function of Work Equipment Pump and Steering Pump...5766
Overheat Prevention Function of Work Equipment Controller...5770
Remote Positioner Function...5770
Semi Auto-Digging Function...5776
Electric Emergency Steering Function...5779
Real-Time Monitoring Function of Work Equipment Controller...5780
Self-Diagnosis Function of Work Equipment Controller...5780
Machine Monitor System...5781
Function...5782
Details of Monitor Controller Network Signals...5782
Machine Monitor...5786
Switch Panel...5805
Rear View Monitor System...5807
Rear View Monitor...5807
Rear View Camera...5809
KOMTRAX System...5810
KOMTRAX Terminal...5811
System Component Parts...5813
Work Equipment Controller...5819
Transmission Controller...5823
Machine Controller...5827
Work Equipment Electric Lever...5833
Throttle Position Sensor...5835
Combination Switch...5837
Kickdown Switch...5839
Hold Switch...5839
CAN Terminating Resistor...5840
Specifications...5840
Engine Oil Pressure Switch...5841
Specifications...5841
Front Brake Oil Pressure Switch...5841
Specification...5841
Rear Brake Oil Pressure Switch...5842
Specification...5842
Stop Lamp Oil Pressure Switch...5842
Specification...5842
Parking Brake Oil Pressure Switch...5843
Specification...5843
SENSORS...5845
Ambient Pressure Sensor...5845
Function...5845
Coolant Temperature Sensor...5845
Function...5846
Ne (Crankshaft) Speed Sensor...5846
Bkup (Camshaft) Speed Sensor...5846
Function...5846
Common Rail Pressure Sensor...5847
Function...5847
Exhaust Manifold Pressure Sensor...5847
Function...5847
EGR Orifice Temperature Sensor...5848
EGR Valve Lift Sensor...5848
Function...5848
KVGT Speed Sensor...5849
Function...5849
KVGT Position Sensor...5850
Function...5850
Output characteristics...5850
Mass Air Flow and Temperature Sensor...5851
Function...5851
KDPF Differential Pressure and Outlet Pressure Sensor...5851
Function...5851
KDOC Inlet Temperature Sensor...5852
Function...5852
KDOC Outlet Temperature Sensor...5852
Function...5852
KDPF Outlet Temperature Sensor...5853
Function...5853
Crankcase Pressure Sensor...5853
Function...5853
Engine Oil Level Sensor...5854
Function...5854
Transmission Input Speed Sensor...5854
Function...5854
Transmission Output Shaft Speed Sensor...5855
Function...5855
Cooling Fan Speed Sensor...5855
Function...5855
Torque Converter Oil Temperature Sensor...5856
Function...5856
Transmission Oil Temperature Sensor...5856
Function...5856
Hydraulic Oil Temperature Sensor...5857
Function...5857
Brake Oil Temperature Sensor...5857
Function...5857
Transmission Inlet Pressure Sensor...5858
Function...5858
Output characteristics...5858
Transmission Outlet Pressure Sensor...5859
Function...5859
Output characteristics...5859
Oil Pressure Sensor of Work Equipment Pump...5860
Function...5860
Output characteristics...5860
Steering Pump Oil Pressure Sensor...5860
Function...5860
Output characteristics...5861
Emergency Steering Pump Pressure Sensor...5861
Function...5861
Output characteristics...5861
Boom Cylinder Bottom Oil Pressure Sensor...5862
Function...5862
Output characteristics...5862
Transmission Cut-off Oil Pressure Sensor...5863
Function...5863
Output characteristics...5863
Coolant Level Sensor...5864
Function...5864
Fuel Level Sensor...5865
Function...5865
Air Cleaner Clogging Sensor...5866
Function...5866
Water-in-Fuel Sensor...5866
Function...5866
Boom Potentiometer...5867
Function...5867
Output characteristics...5867
Bucket Potentiometer Sensor...5868
Function...5868
Output characteristics...5868
QUICK COUPLER...5869
Quick Coupler Switch...5869
Quick Coupler Solenoid Valve...5870
Outline...5870
20 STANDARD VALUE TABLES...5872
STANDARD VALUE TABLES...5873
Service Value For Engine...5873
Service Values For Chassis...5875
Directional Levers...5875
Gear Speed Switch...5875
Work Equipment Levers...5876
Multi-Function Mono-Lever...5877
Steering Wheel...5878
Frame...5878
Accelerator Pedal...5879
Brake Pedal...5879
Tires...5879
Engine Speed...5880
Transmission and Torque Converter...5880
Steering...5881
Accumulator...5881
Power Train...5881
Wheel Brake...5883
Parking Brake...5884
PPC...5884
Work Equipment...5885
Hydraulic Fan...5886
Machine Posture...5887
30 TESTING AND ADJUSTING...5890
TOOLS...5895
Tools for Testing, Adjusting, and Troubleshooting...5895
Sketch of Tools for Testing and Adjusting...5901
ENGINE AND COOLING SYSTEM...5903
Measuring Engine Speed...5903
Measurement Conditions...5903
Testing...5903
Measuring Boost Pressure...5905
Measuring With Machine Monitor...5905
Measuring by Use of Testing Tools...5905
Testing Exhaust Gas Temperatures...5907
Testing...5907
Testing Exhaust Gas Color...5911
Testing...5911
Testing and Adjusting Valve Clearance...5915
Testing...5915
Adjusting...5917
Measuring Compression Pressure...5919
Testing...5919
Measuring Blow-By Pressure...5925
Measuring Engine Oil Pressure...5927
Measuring EGR Valve and KVGT Oil Pressure...5929
Testing...5929
Testing Fuel Pressure...5931
Testing...5932
Testing Low-Pressure Circuit (Pressure Difference)...5933
Testing Return Circuit...5934
Testing Negative-Pressure Circuit...5935
Measuring Fuel Delivery, Return and Leakage...5937
Testing...5938
Testing Supply Pump Return Rate...5939
Testing Leakage from Pressure Limiter...5941
Testing Fuel Return Rate from Injector...5942
Bleeding Air from Fuel System...5943
Checking Fuel Circuit for Leakage...5945
Handling Cylinder Cut-Out Mode Operation...5946
Handling No-Injection Cranking Operation...5946
Check of KDPF and Muffler Stack for Looseness and Damage...5946
Check of Installed Condition of Cylinder Head and Manifolds...5946
Checking Engine Piping for Damage and Looseness...5946
Testing and Adjusting Air Conditioner Compressor Belt Tension...5947
Replacing Alternator Belt...5948
POWER TRAIN SYSTEM...5949
Adjusting Transmission Output Speed Sensor...5949
Adjustment...5949
Adjusting Transmission Input Speed Sensor...5950
Adjustment...5950
Flushing Procedure for Torque Converter and Transmission Hydraulic Circuit...5951
Flushing Procedures...5951
Retrieval of Disabled Machine Due to Transmission Valve Failure...5953
How to Move...5953
Checking Oil Leakage from Axle Final Drive...5954
Checking Drive Shaft for Looseness, Play, and Damage...5955
Testing and Adjusting Power Train Oil Pressure...5957
Testing...5961
Adjustment...5974
STEERING SYSTEM...5975
Checking Directional Lever...5975
Testing...5975
Testing Steering Wheel...5977
Testing...5977
Testing Work Equipment Control Lever...5979
Testing...5979
Testing and Adjusting Steering Circuit Pressure...5981
Testing...5981
Adjustment...5983
Bleeding Air from Steering Cylinder Circuit...5984
Bleeding Air...5984
Testing and Adjusting Steering Stopper Valve...5985
Testing...5985
Adjustment...5985
BRAKE SYSTEM...5987
Testing Brake Pedal...5987
Testing...5987
Testing and Adjusting Brake Pedal Linkage...5988
Testing...5988
Adjustment...5988
Testing Braking Performance...5989
Testing...5989
Testing and Adjusting Accumulator Charge Pressure...5991
Testing...5991
Adjusting...5992
Testing Wheel Brake Oil Pressure...5993
Testing...5993
Measuring Lowering of Wheel Brake Pressure...5995
Testing...5995
Brake Test Kit...5997
Measuring Wear of Wheel Brake Disc...5998
Testing...5998
Bleeding Air From Wheel Brake Circuit...5999
Bleeding Air...5999
Releasing Remaining Pressure in Brake Accumulator Circuit...6000
Releasing Remaining Pressure...6000
Testing Parking Brake Performance...6000
Testing...6000
Testing Parking Brake Oil Pressure...6001
Testing...6001
Testing Wear of Parking Brake Disc...6003
Testing...6003
Method of Releasing Parking Brake Manually...6005
How to Release...6005
HYDRAULIC SYSTEM...6007
Checking Fan Speed...6007
Testing...6007
Measuring Fan Pump Circuit Oil Pressure...6009
Testing...6009
Bleeding Air from Hydraulic Fan Circuit...6011
Bleeding Air...6011
Testing and Adjusting Work Equipment PPC Oil Pressure...6013
Testing...6013
Adjustment...6015
Testing and Adjusting Work Equipment Oil Pressure...6017
Preparation...6017
Testing...6018
Bleeding Air from Work Equipment Circuit...6021
Bleeding Air from Work Equipment Pump (Piston Pump)...6021
Bleeding Air from Cylinder...6021
Releasing Remaining Pressure from Work Equipment Circuit...6023
Releasing Remaining Pressure Between Each Hydraulic Cylinder and Control Valve...6023
Releasing Remaining Pressure In ECSS Circuit...6023
Checking of ECSS Accumulator Nitrogen Gas Pressure and Procedure for Charging Accumulator with Nitrogen Gas...6025
Testing Nitrogen Gas Pressure in Accumulator...6025
Procedure for Charging Accumulator with Nitrogen Gas...6028
WORK EQUIPMENT...6033
Testing and Adjusting Bucket Position Detection Lever...6033
Testing...6033
Adjustment...6033
Testing and Adjusting Boom Position Detection Lever...6034
Testing...6034
Adjustment...6034
ELECTRICAL SYSTEM...6035
Adjusting Replaced, Reassembled or Added Sensor, Controller, Etc. with Machine Monitor...6035
Special Functions of Machine Monitor...6037
Ordinary Functions and Special Functions of Machine Monitor...6038
Operator Mode (outline)...6040
Service Mode...6053
Angle Adjustment of Rear View Camera...6147
Adjustment...6148
Handling Voltage Circuit of Engine Controller...6148
Handling Battery Disconnect Switch...6149
Testing Diodes...6150
Testing...6150
PM-CLINIC INSPECTION TABLE...6151
Check Sheet...6152
40 TROUBLESHOOTING...6158
POINTS TO REMEMBER WHEN TROUBLESHOOTING...6171
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE...6174
Precautions when Handling Electrical Equipment...6174
Handling Electronic Control Unit...6179
Points to Remember when Troubleshooting Electrical Circuits...6180
ELECTRIC WIRE CODE...6181
Classification by Thickness...6181
Classification by Color and Code...6181
How to Read Electric Wire Code...6182
Type, Symbol, and Material...6182
Dimensions...6183
HANDLING HYDRAULIC EQUIPMENT...6184
CHECKS BEFORE TROUBLESHOOTING...6186
Testing Procedure Before Troubleshooting...6188
Walk-Around Check...6188
Categories and Method of Using Troubleshooting Charts...6196
Information Mentioned in Troubleshooting Table...6199
Connector List...6201
Layout of Connectors (1/7)...6215
Layout of Connectors (2/7)...6216
Layout of Connectors (3/7)...6217
Layout of Connectors (4/7)...6218
Layout of Connectors (5/7)...6219
Layout of Connectors (6/7)...6220
Layout of Connectors (7/7)...6221
Diagnostic Procedure for Wiring Harness Open Circuit of Pressure Sensor System...6223
Fuse Location Table...6226
Precautions for Cleaning and Replacing KDPF (KCSF, KDOC)...6229
Dummy Temperature Sensor (for KDOC and KDPF Temperature Sensors)...6233
Short-Circuit Connector (for CA1883 and CA3135)...6234
Precautions on Troubleshooting of Machine Monitor...6235
Processing Procedure of Harness Checker for Troubleshooting of Machine Monitor LCD Unit...6237
TROUBLESHOOTING BY FAILURE CODE...6243
Failure Code Table...6243
FAILURE CODES...6255
[1500L0] Double Engagement of T/M Clutches...6255
[15SAL1] Release Trouble of ECMV (Forward)...6257
[15SALH] Malfunction of ECMV (Forward)...6259
[15SBL1] Release Trouble of ECMV (Release)...6261
[15BLH] Malfunction of ECMV (Reverse)...6263
[15SEL1] Release Trouble of ECMV (1st)...6265
[15SELH] Malfunction of ECMV (1st)...6267
[15SFL1] Release Trouble of ECMV (2nd)...6269
[15SFLH] Malfunction of ECMV (2nd)...6271
[15SGL1] Release Trouble of ECMV (3rd)...6273
[15SGLH] Malfunction of ECMV (3rd)...6275
[15SHL1] Release Trouble of ECMV (4th)...6277
[15SHLH] Malfunction of ECMV (4th)...6279
[2F00MA] Failure of Parking Brake Circuit...6281
[2G42ZG] Accumulator Oil Pressure Low (Front)...6285
[2G43ZG] Accumulator Oil Pressure Low (Rear)...6287
[879AKA] A/C Inner Sensor Open Circuit...6289
[879AKB] A/C Inner Sensor Short Circuit...6291
[879BKA] A/C Outer Sensor Open Circuit...6293
[879BKB] A/C Outer Sensor Short Circuit...6295
[879CKA] Ventilating Sensor Open Circuit...6297
[879CKB] Ventilating Sensor Short Circuit...6299
[879DKZ] Sunlight Sensor Open or Short Circuit...6301
[879EMC] Ventilation Damper Abnormality...6303
[879FMC] Air Mix Damper Abnormality...6306
[989A00] Engine Overrun Protection Activated...6309
[989L00] Engine Controller Lock Caution 1...6309
[989M00] Engine Controller Lock Caution 2...6310
[989N00] Engine Controller Lock Caution 3...6310
[A1U0N3] HC Desorb Request 1...6311
[A1U0N4] HC Desorb Request 2...6313
[AA10NX] Air Cleaner Clogging...6315
[B@BAZG] Eng Oil Press Low...6317
[B@BAZK] Eng Oil Level Low...6319
[B@BCNS] Eng Water Overheat...6321
[B@BCZK] Eng Water Level Low...6323
[B@CENS] T/C Oil Temp. Overheat...6325
[B@HANS] HYD Oil Temp. Overheat...6326
[CA115] Eng Ne and Bkup Speed Sens Error...6326
[CA122] Chg Air Press Sensor High Error...6327
[CA123] Chg Air Press Sensor Low Error...6329
[CA131] Throttle Sensor High Error...6331
[CA132] Throttle Sensor Low Error...6333
[CA144] Coolant Temp Sens High Error...6335
[CA145] Coolant Temp Sens Low Error...6337
[CA153] Chg Air Temp Sensor High Error...6339
[CA154] Chg Air Temp Sensor High Error...6341
[CA187] Sensor 2 Supply Volt Low Error...6343
[CA221] Ambient Press Sensor High Error...6345
[CA222] Ambient Press Sensor Low Error...6347
[CA227] Sensor 2 Supply Volt High Error...6350
[CA234] Eng Overspeed...6350
[CA238] Ne Speed Sensor Supply Volt Error...6351
[CA239] Ne Speed Sens Supply Volt High Error...6353
[CA271] IMV/PCV1 Short Error...6355
[CA272] IMV/PCV1 Open Error...6357
[CA295] Ambient Press Sens In Range Error...6359
[CA322] Inj #1 (L#1) Open/Short Error...6360
[CA323] Inj #5 (L#5) Open/Short Error...6362
[CA324] Inj #3 (L#3) Open/Short Error...6364
[CA325] Inj #6 (L#6) Open/Short Error...6366
[CA331] Inj #2 (L#2) Open/Short Error...6368
[CA332] Inj #4 (L#4) Open/Short Error...6370
[CA343] ECM Critical Internal Failure...6372
[CA351] Injectors Drive Circuit Error...6372
[CA352] Sensor 1 Supply Volt Low Error...6373
[CA356] Mass Air Flow Sensor High Error...6375
[CA357] Mass Air Flow Sensor Low Error...6377
[CA386] Sensor 1 Supply Volt High Error...6380
[CA428] Water in Fuel Sensor High Error...6381
[CA429] Water in Fuel Sensor Low Error...6383
[CA431] Idle Validation Switch Error...6385
[CA432] Idle Validation Process Error...6389
[CA435] Eng Oil Press Sw Error...6393
[CA441] Battery Voltage Low Error...6395
[CA442] Battery Voltage High Error...6397
[CA449] Rail Press Very High Error...6398
[CA451] Rail Press Sensor High Error...6399
[CA452] Rail Press Sensor Low Error...6401
[CA488] Chg Air Temp High Torque Derate...6403
[CA515] Rail Press Sens Sup Volt High Error...6405
[CA516] Rail Press Sens Sup Volt Low Error...6407
[CA553] Rail Press High Error...6409
[CA555] Crankcase Press High Error 1...6409
[CA556] Crankcase Press High Error 2...6410
[CA559] Rail Press Low Error...6411
[CA595] Turbo Speed High Error 2...6412
[CA687] Turbo Speed Low Error...6413
[CA689] Eng Ne Speed Sensor Error...6415
[CA691] Intake Air Temp Sens High Error...6419
[CA692] Intake Air Temp Sens Low Error...6421
[CA697] ECM Int Temp Sensor High Error...6423
[CA698] ECM Int Temp Sensor Low Error...6424
[CA731] Eng Bkup Speed Sens Phase Error...6425
[CA778] Eng Bkup Speed Sensor Error...6427
[CA1117] Persistent Data Lost Error...6431
[CA1664] KDOC Malfunction...6432
[CA1691] Regeneration Ineffective...6435
[CA1695] Sensor 5 Supply Volt High Error...6439
[CA1696] Sensor 5 Supply Volt Low Error...6441
[CA1843] Crankcase Press Sens High Error...6443
[CA1844] Crankcase Press Sens Low Error...6445
[CA1879] KDPF Delta P Sensor High Error...6447
[CA1881] KDPF Delta P Sensor Low Error...6449
[CA1883] KDPF Delta P Sens In Range Error...6451
[CA1921] KDPF Soot Load High Error 1...6457
[CA1922] KDPF Soot Load High Error 2...6459
[CA1942] Crankcase Press Sens In Range Error...6463
[CA1993] KDPF Delta Pressure Low Error...6464
[CA2185] Throt Sensor Sup Volt High Error...6467
[CA2186] Throt Sensor Sup Volt Low Error...6469
[CA2249] Rail Press Very Low Error...6470
[CA2271] EGR Valve Pos Sens High Error...6471
[CA2272] EGR Valve Pos Sens Low Error...6475
[CA2288] Turbo Speed High Error 1...6479
[CA2311] IMV Solenoid Error...6479
[CA2349] EGR Valve Solenoid Open Error...6481
[CA2353] EGR Valve Solenoid Short Error...6483
[CA2357] EGR Differential Pressure...6485
[CA2373] Exh Manifold Press. Sens High Error...6487
[CA2374] Exhaust Manifold Press Sens Low Error...6489
[CA2375] EGR Orifice Temp Sens High Error...6491
[CA2376] EGR Orifice Temp Sens Low Error...6493
[CA2381] KVGT Pos Sens High Error...6495
[CA2382] KVGT Pos Sens Low Error...6497
[CA2383] KVGT Solenoid Open Error...6501
[CA2386] KVGT Solenoid Short Error...6503
[CA2387] KVGT Servo Error...6505
[CA2554] Exh Manifold Press Sens In Range Error...6506
[CA2555] Grid Htr Relay Volt Low Error...6507
[CA2556] Grid Htr Relay Volt High Error...6509
[CA2637] KDOC Face Plugging...6511
[CA2639] Manual Stationary Regeneration Request...6513
[CA2961] EGR Orifice Temp High Error 1...6515
[CA2973] Chg Air Press Sensor In Range Error...6516
[CA3133] KDPF Outlet Press Sens High Error...6517
[CA3134] KDPF Outlet Press Sens Low Error...6519
[CA3135] KDPF Outlet Press Sens In Range Error...6521
[CA3251] KDOC Inlet Temp High Error...6526
[CA3253] KDOC Temp Error - Non Regeneration...6529
[CA3254] KDOC Outlet Temp High Error 1...6533
[CA3255] KDPF Temp Error - Non Regeneration...6537
[CA3256] KDPF Outlet Temp High Error 1...6541
[CA3311] KDOC Outlet Temp High Error 2...6545
[CA3312] KDPF Outlet Temp High Error 2...6549
[CA3313] KDOC Inlet Temp Sensor Low Error...6553
[CA3314] KDOC Inlet Temp Sens High Error...6557
[CA3315] KDOC Inlet Temp Sens In Range Error...6561
[CA3316] KDOC Outlet Temp Sens Low Error...6567
[CA3317] KDOC Outlet Temp Sens High Error...6571
[CA3318] KDOC Inlet Temp Sens In Range Error...6575
[CA3319] KDPF Outlet Temp Sens High Error...6581
[CA3321] KDPF Outlet Temp Sens Low Error...6585
[CA3322] KDPF Outlet Temp Sens In Range Error...6589
[CA3419] Mass Air Flow Sensor Sup Volt High Error...6595
[CA3421] Mass Air Flow Sensor Sup Volt Low Error...6597
[CA3741] Rail Press Valve Trip Error...6599
[D150KA] Disconnection of Emergency Steering Relay...6601
[D150KB] Ground Fault of Emergency Steering Relay...6603
[D150KY] Hot Short of Emergency Steering Relay...6605
[D160KA] Disconnection of Back-Up Lamp Relay Output...6607
[D160KB] Ground Fault of Back-Up Lamp Relay Output...6609
[D160KY] Hot Short of Back-Up Lamp Relay Output...6611
[D191KA] Disconnection of Neutral Output Relay...6613
[D191KB] Ground Fault of Neutral Output Relay...6617
[D191KY] Hot Short of Neutral Output Relay...6621
[D192KA] Disconnection of ECSS Solenoid...6623
[D192KB] Ground Fault of ECSS Solenoid...6625
[D192KY] Hot Short of ECSS Solenoid...6627
[D19JKZ] Personal Code Relay Abnormality...6629
[D1E6KA] Disconnection of Parking Brake Relay...6631
[D1E6KB] Ground Fault of Parking Brake Relay...6633
[D1E6KY] Hot Short of Parking Brake Relay...6635
[D5ZHKA] Failure of Key SW C Signal...6637
[D5ZHKB] Key SW C Signal Short Circuit...6639
[D5ZHKZ] Failure of Key SW C Signal...6641
[D5ZHL6] Disconnection of Key SW C...6645
[D811MC] KOMTRAX Error...6647
[D862KA] GPS Antenna Open Circuit...6647
[D8ALKA] Operating Lamp Open Circuit (KOMTRAX)...6649
[D8ALKB] Operating Lamp Short Circuit (KOMTRAX)...6651
[D8AQK4] CAN2 Discon (KOMTRAX) 2...6653
[D8AQKR] CAN2 Discon (KOMTRAX)...6654
[DAF0KT] Abnormality of Non-volatile Memory (MON)...6655
[DAF0MB] Monitor ROM Abnormality...6655
[DAF0MC] Monitor Error...6655
[DAF3KK] Controller Power Source Low (MON)...6657
[DAF8KB] Camera Power Supply Short Circuit...6659
[DAFDKB] Monitor 12 V Power Output Short Circuit...6661
[DAFGMC] GPS Module Error...6662
[DAFLKA] Operating Lamp Open Circuit (MON)...6663
[DAFLKB] Operating Lamp Short Circuit (MON)...6665
[DAFQKR] CAN2 Discon (Monitor)...6667
[DAQ0KK] Controller Power Source Low (T/M)...6669
[DAQ0KT] Abnormality of Non-volatile Memory (T/M)...6673
[DAQ0MC] T/M Con Error...6674
[DAQ1KA] Disconnection of Key SWACC (T/M)...6675
[DAQ2KK] Solenoid Power Source Low (T/M)...6677
[DAQ4KB] Ground Fault of Sol. Self-Holding Relay (TM)...6681
[DAQ9KQ] Inconsistency of Model Selection (T/M)...6683
[DAQLKA] Operating Lamp Open Circuit (T/M)...6685
[DAQLKB] Operating Lamp Short Circuit (T/M)...6687
[DAQQKR] CAN2 Discon (Transmission Con)...6689
[DAQRKR] CAN1 Discon (Transmission Con)...6690
[DAQRMA] Inconsistency of Option Selection (T/M)...6691
[DAZ9KQ] A/C Model Selection Abnormality...6691
[DAZQKR] CAN2 Discon (Aircon ECU)...6692
[DB2QKR] CAN2 Discon (Engine Con)...6693
[DB2RKR] CAN1 Discon (Engine Con)...6699
[DB90KK] Drop in BBC Controller Main Power Source...6705
[DB90KT] Abnormality of Non-Volatile Memory (BBC)...6707
[DB90MC] BBC Error...6707
[DB91KA] Disconnection of Key SW ACC (BBC)...6709
[DB92KK] Solenoid Power Source Low (BBC)...6711
[DB95KX] Failure of 5 V Power Source 1...6715
[DB96KX] Failure of 5 V Power Source 2...6719
[DB99KQ] Inconsistency of Model Selection (BBC)...6721
[DB9LKA] Operating Lamp Open Circuit (BBC)...6723
[DB9LKB] Operating Lamp Short Circuit (BBC)...6725
[DB9QKR] CAN2 Discon (Bucket Boom Con)...6727
[DB9RKR] CAN1 Discon (Bucket Boom Con)...6728
[DB9RMA] Inconsistency of Option Selection (BBC)...6729
[DBE5KX] Failure of 5 V Power Source...6731
[DBE6KX] Failure of 24 V Power Source...6733
[DD1ALD] Ground Fault of Remote Positioner Set SW...6735
[DDAAL6] Disconnection of Secondary Switch ENG Stop SW...6737
[DDB6L4] Neutral Signal Malfunction...6739
[DDD1LD] Failure of Bucket Positioner Set Switch...6743
[DDK3KA] FNR SW Input Signal Disconnection...6745
[DDK3KB] FNR SW Input Signal Short Circuit...6749
[DDK6KA] FNR Lever Input Signal Disconnection...6751
[DDK6KB] FNR Lever Input Signal Short Circuit...6755
[DDNRKY] Hot Short of Work Equipment Lock SW...6757
[DDT0L4] Failure of Shift Mode Select SW...6759
[DDT4LD] Ground Fault of T/M Cut Off Set SW Signal...6761
[DDT9LD] Ground Fault of T/M Cut Off Set SW Signal...6763
[DDW9LD] Ground Fault of Kick-Down Switch...6765
[DDWLLD] Ground Fault of T/M Shift Hold SW...6767
[DF10KA] Disconnection of Shift Lever Input...6769
[DF10KB] Ground Fault of Shift Lever Input...6773
[DGF1KA] Disconnection of T/M Oil Temp Sensor...6777
[DGF1KB] Ground Fault of T/M Oil Temp. Sensor...6779
[DGH2KX] Out of Range of HYD Oil Temp. Sensor...6781
[DGR2KB] Ground Fault of Brake Oil Temp. Sensor...6783
[DGR2KZ] Failure of Brake Oil Temp. Sensor...6785
[DGT1KA] Disconnection of T/C Oil Temp. Sensor...6787
[DGT1KB] Ground Fault of T/C Oil Temp. Sensor...6789
[DH21KA] Failure of Loader Pump Press. Sensor...6791
[DH21KB] Loader Pump Press. Sensor Short Circuit...6795
[DHA4KA] Failure of Air Cleaner Sensor Circuit...6797
[DHPCKX] Out of Range of Boom Bottom Press. Sensor...6799
[DHPDKX] Out of Range of Boom Head Press. Sensor...6801
[DHT1KX] Out of Range of T/M Cut Off Press. Sensor...6803
[DHT5KX] Out of Range of T/C Input Pressure Sensor...6805
[DHT7KX] Out of Range of T/C Output Pressure Sensor...6807
[DHT8KA] Failure of Steering Pump Press. Sensor...6809
[DHT8KB] Steering Pump Press. Sensor Short Circuit...6811
[DHT8ZG] Steering Oil Pressure Low...6813
[DHUDKA] Failure of Emrg. Steering Press. Sensor...6815
[DHUDKB] Emrg. Steering Press. S. Short Circuit...6819
[DJF1KA] Disconnection of Fuel Level Sensor...6821
[DK55KA] Failure of FNR Lever Potentio...6823
[DK55KY] Hot Short of FNR Lever Potentio Circuit...6827
[DK55L5] Failure of FNR Lever Potentio...6829
[DK59KA] Failure of Boom Lever Potentio (Main)...6830
[DK59KY] Hot Short of Boom Lever Potentio (Main)...6833
[DK59L8] Boom Lever Potentio (Main & Sub) Disagree...6835
[DK5AKA] Failure of Boom Lever Potentio (Sub)...6839
[DK5AKY] Hot Short of Boom Lever Potentio (Sub)...6843
[DK5BKA] Failure of Bucket Lever Potentio (Main)...6847
[DK5BKY] Hot Short of Bucket Lever Potentio (Main)...6851
[DK5BL8] Bucket Lever Potentio (Main&Sub) Disagree...6855
[DK5CKA] Failure of Bucket Lever Potentio (Sub)...6859
[DK5CKY] Hot Short of Bucket Lever Potentio (Sub)...6863
[DK5DKA] Failure of 3rd Lever Potentio (Main)...6867
[DK5DKY] Hot Short of 3rd Lever Potentio (Main)...6871
[DK5DL8] 3rd Lever Potentio (Main&Sub) Disagree...6873
[DK5EKA] Failure of 3rd Lever Potentio (Sub)...6877
[DK5EKY] Hot Short of 3rd Lever Potentio (Sub)...6879
[DK5KKA] Failure of 4th Lever Potentio (Main)...6881
[DK5KKY] Hot Short of 4th Lever Potentio (Main)...6883
[DK5KL8] 4th Lever Potentio (Main&Sub) Disagree...6885
[DK5LKA] Failure of 4th Lever Potentio (Sub)...6889
[DK5LKY] Hot Short of 4th Lever Potentio (Sub)...6891
[DKA0KA] Failure of Boom Angle Sensor...6893
[DKA0KY] Hot Short of Boom Angle Sensor Circuit...6895
[DKA0L0] Boom Angle Sensor Dislocation...6897
[DKA1KA] Failure of Bucket Angle Sensor...6899
[DKA1KY] Hot Short of Bucket Angle Sensor Circuit...6901
[DLF1KA] Disconnection of T/M Input Speed Sensor...6903
[DLF1LC] Failure of T/M Input Speed Sensor...6905
[DLM3KA] Disconnection of Radiator Fan Speed Sensor...6907
[DLM3LC] Failure of Radiator Fan Speed Sensor...6909
[DLT3KA] Disconnection of Output Speed Sens. (Main)...6911
[DLT3LC] Failure of Output Speed Sensor (Main)...6913
[DPQ1KR] LIN Discon (Switch Panel)...6915
[DPQ2KR] LIN Discon (LED Unit)...6919
[DPQ3KR] LIN DIscon (Rear View Monitor)...6923
[DJS0KR] CAN2 Discon (Meter Unit)...6927
[DT20KB] Ground Fault of T/M Cut Off Indicator...6929
[DT22KB] Ground Fault of Work Equip. Lock Indic...6931
[DV00KB] Ground Fault of Buzzer Output...6933
[DW4PKA] Disconnection of Boom EPC Solenoid (Raise)...6935
[DW4PKB] Ground Fault of Boom EPC Solenoid (Raise)...6937
[DW4PKY] Hot Short of Boom EPC Solenoid (Raise)...6939
[DW4QKA] Disconnection of Boom EPC Solenoid (Lower)...6941
[DW4QKB] Ground Fault of Boom EPC Solenoid (Lower)...6943
[DW4QKY] Hot Short of Boom EPC Solenoid (Lower)...6945
[DW4RKA] Disconnection of Bucket EPC Sol. (Tilt)...6947
[DW4RKB] Ground Fault of Bucket EPC Sol. (Tilt)...6949
[DW4RKY] Hot Short of Bucket EPC Solenoid (Tilt)...6951
[DW4SKA] Disconnection of Bucket EPC. Sol (Dump)...6953
[DW4SKB] Ground Fault of Bucket EPC Sol. (Dump)...6955
[DW4SKY] Hot Short of Bucket EPC Solenoid (Dump)...6957
[DW7BKA] Disconnection of Fan Reverse Solenoid...6959
[DW7BKB] Ground Fault of Radiator Fan Reverse Solenoid...6961
[DW7BKY] Hot Short of Radiator Fan Rev. Sol...6963
[DWM1KA] Disconnection of Neutral Lock Solenoid...6965
[DWM1KB] Ground Fault of Neutral Lock Solenoid...6967
[DWM1KY] Hot Short of Neutral Lock Solenoid...6969
[DWN6KA] Disconnection of Detent Solenoid (Boom)...6971
[DWN6KB] Ground Fault of Detent Solenoid (Boom)...6973
[DWN6KY] Hot Short of Detent Solenoid (Boom)...6975
[DWN8KA] Disconnection of Detent Solenoid (Bucket)...6977
[DWN8KB] Ground Fault of Detent Solenoid (Bucket)...6979
[DWN8KY] Hot Short of Detent Solenoid (Bucket)...6981
[DX16KA] Disconnection of Radiator Fan Pump EPC Solenoid...6983
[DX16KB] Ground Fault of Radiator Fan Pump EPC Solenoid...6985
[DX16KY] Hot Short of Radiator Fan Pump EPC Solenoid...6987
[DXA1KA] Disconnection of Loader Pump EPC Solenoid...6989
[DXA1KB] Ground Fault of Loader Pump EPC Solenoid...6991
[DXA1KY] Hot Short of Loader Pump EPC Solenoid...6993
[DXANKA] Disconnection of Steering Pump EPC Solenoid...6995
[DXANKB] Ground Fault of Steering Pump EPC Solenoid...6997
[DXANKY] Hot Short of Steering Pump EPC Solenoid...6999
[DXH1KA] Disconnection of ECMV Solenoid (Lockup)...7001
[DXH1KB] Ground Fault of ECMV Solenoid (Lockup)...7003
[DXH1KY] Hot Short of ECMV Solenoid (Lockup)...7005
[DXH4KA] Disconnection of ECMV Solenoid (1st)...7007
[DXH4KB] Ground Fault of ECMV Solenoid (1st)...7009
[DXH4KY] Hot Short of ECMV Solenoid (1st)...7011
[DXH5KA] Disconnection of ECMV Solenoid (2nd)...7013
[DXH5KB] Ground Fault of ECMV Solenoid (2nd)...7015
[DXH5KY] Hot Short of ECMV Solenoid (2nd)...7017
[DXH6KA] Disconnection of ECMV Solenoid (3rd)...7019
[DXH6KB] Ground Fault of ECMV Solenoid (3rd)...7021
[DXH6KY] Hot Short of ECMV Solenoid (3rd)...7023
[DXH7KA] Disconnection of ECMV Solenoid (Reverse)...7025
[DXH7KB] Ground Fault of ECMV Solenoid (Reverse)...7027
[DXH7KY] Hot Short of ECMV Solenoid (Reverse)...7029
[DXH8KA] Disconnection of ECMV Solenoid (Forward)...7031
[DXH8KB] Ground Fault of ECMV Solenoid (Forward)...7033
[DXH8KY] Hot Short of ECMV Solenoid (Forward)...7035
[DXHHKA] Disconnection of ECMV Solenoid (4th)...7037
[DXHHKB] Ground Fault of ECMV Solenoid (4th)...7039
[DXHHKY] Hot Short of ECMV Solenoid (4th)...7041
[DXHJKA] Disconnection of 3rd EPC Solenoid (EXT)...7043
[DXHJKB] Ground Fault of 3rd EPC Solenoid (EXT)...7045
[DXHJKY] Hot Short of 3rd EPC Solenoid (EXT)...7047
[DXHKKA] Disconnection of 3rd EPC Solenoid (RET)...7049
[DXHKKB] Ground Fault of 3rd EPC Solenoid (RET)...7051
[DXHKKY] Hot Short of 3rd EPC Solenoid (RET)...7053
[DXJEKA] Disconnection of 4th EPC Solenoid (EXT)...7055
[DXJEKB] Ground Fault of 4th EPC Solenoid (EXT)...7057
[DXJEKY] Hot Short of 4th EPC Solenoid (EXT)...7059
[DXJFKA] Disconnection of 4th EPC Solenoid (RET)...7061
[DXJFKB] Ground Fault of 4th EPC Solenoid (RET)...7063
[DXJFKY] Hot Short of 4th EPC Solenoid (RET)...7065
[DY30MA] Malfunction 1 of Emerg. Steering Motor...7067
[DY30MC] Malfunction 2 of Emerg. Steering Motor...7071
[DY30ME] Emergency Steering Long-Time Activated...7075
[H2K0KA] Failure of Quick Coupler Lock Signal...7079
[H2K0KY] Hot Short of Quick Coupler Lock Signal...7082
[LA00L3] Failure of Fan Reverse...7085
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E-MODE)...7087
E-1 Engine Does Not Start...7087
E-2 Manual Preheating System Does Not Work...7095
E-3 Automatic Preheating System Does Not Work...7099
E-4 While Preheating is Working, Preheating Monitor Does Not Light Up...7101
E-5 All of LCD Unit, LED Unit, and Meter Unit on Machine Monitor Display Nothing...7103
E-6 LCD Unit on Machine Monitor Displays Nothing...7107
E-7 Backlight of LCD Unit on Machine Monitor is Abnormal (Backlight Goes Out or Flickers)...7109
E-8 LCD on Machine Monitor Does Not Display Properly...7111
E-9 Meter Unit Display on Machine Monitor is Abnormal...7113
E-10 Night Lighting Lamp of Meter Unit on Machine Monitor is Abnormal...7117
E-11 Caution LED on Machine Monitor is Abnormal...7121
E-12 LED of Switch Panel on Machine Monitor is Abnormal or Switches Does Not Operate Properly...7125
E-13 Two Switches Operation of Switch Panel on Machine Monitor Does Not Function...7129
E-14 Switch Panel Buzzer of Machine Monitor is Abnormal...7133
E-15 Rear View Monitor Does Not Light Up or Backlight Flickers...7137
E-16 Rear View Monitor Images are not Displayed Clearly...7141
E-17 Rear View Monitor Brightness cannot be Adjusted...7145
E-18 Night Lighting Lamp of Rear View Monitor is Abnormal...7149
E-19 Some Items of Gauges and Caution Lamps on Machine Monitor are not Displayed Properly...7152
E-20 Parking Brake Indicator Lamp does not Light When the Parking Brake is Set to ON (Parking) Position...7153
E-21 When Brake Accumulator Oil Pressure Drops, the Brake Oil Pressure Caution Lamp does not Light...7157
Front Brake...7157
Rear Brake...7159
E-22 Air Cleaner Clogging Indicator Lamp does not Light...7161
E-23 Radiator Coolant Level Caution Lamp does not Light...7163
E-24 Indication of Hydraulic Oil Temperature Gauge does not Increase, or Hydraulic Oil Temperature Caution Lamp does not Light...7165
E-25 Indication of Torque Converter Oil Temperature Gauge does not Increase, or Torque Converter Oil Temperature Caution Lamp does not Light...7166
E-26 Fuel Level Gauge does not Indicate Correct Level...7167
E-27 Seat Belt Caution Lamp Indication is Abnormal...7169
E-28 Horn does not Sound...7171
E-29 Horn does not Stop Sounding...7175
E-30 Alarm Buzzer does not Sound...7177
E-31 When Starting Switch is in ON Position, Alarm Buzzer does not Stop Sounding...7179
E-32 Kick-Down does not Work when kick-Down Switch is Turned ON...7181
E-33 The Hold Switch does not Work When it is Pressed...7183
E-34 Parking Brake does not Work Even if it is Applied, or the Brake Drags When Parking Brake is Released and FR Drive is Operated...7185
E-35 Transmission Cut-Off Mode is not Selected or not Released...7189
E-36 Transmission Cut-Off Setting cannot be Released...7191
E-37 Directional Selector (FNR) Switch Mode is not Selected or not Released...7193
E-38 When Operating Engine Power Selection Switch, Engine Power Selection Function does not Operate Properly...7195
E-39 Flow of Loader Pump does not Increase from the Minimum Rate...7197
E-40 ECSS Function cannot be Selected or cannot be Released...7199
E-41 None of Headlamp, Clearance Lamp, and Tail Lamp Light...7201
E-42 Clearance Lamp and Tail Lamp do not Light Up or go Out...7203
E-43 Both "High and Low Beams" of Headlamp do not Light Up or Go Out...7207
E-44 The Headlamp "Low Beam" does not Light Up or Go Out...7211
E-45 The Headlamp "High Beam" does not Light Up or Go Out...7213
E-46 Front Working Lamp does not Light Up or Go Out...7215
E-47 Rear Working Lamp does not Light Up or Go Out...7219
E-48 All of Turn Signal Lamps and Hazard Lamps do not Light Up or Go Out...7223
E-49 Turn Signal Lamps do not Light Up or Go Out...7227
E-50 Hazard Lamp does not Light Up or Go Out...7231
E-51 Brake Lamp does not Light Up or Stays Lighted...7235
E-52 Back-Up Lamp does not Light or Continues To Light...7239
E-53 Back-Up Buzzer does not Sound or Continues to Sound...7243
E-54 Front Wiper does not Operate...7245
E-55 Rear Wiper does not Operate...7249
E-56 Window Washer does not Operate...7253
E-57 KOMTRAX System does not Operate Properly...7257
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H-MODE)...7259
Information Mentioned in Troubleshooting Table (H-mode)...7259
System Chart of Hydraulic and Mechanical Systems...7260
Failure Mode and Cause Table...7263
H-1 Machine Does Not Start...7273
H-2 Torque Converter Lockup is Not Disengaged (Engine Stalls)...7277
H-3 Torque Converter Lockup Clutch is Not Engaged...7277
H-4 Travel Speed is Slow, Bucket Thrusting Force is Weak, Gradability is Low, or Gear Speed Does Not Shift...7278
H-5 Large Shock is Made When Machine Starts or Gear is Shifted...7281
H-6 Machine Starts or Gear Speed Shifts with Long Time Lag...7285
H-7 Torque Converter Oil Temperature is High...7289
H-8 Machine Does Not Turn...7293
H-9 Turning Response is Poor...7295
H-10 Steering Wheel is Heavy to Turn...7297
H-11 Machine Sways or Large Shocks Are Made While Machine Turns...7299
H-12 Turning Radius Differs Between Right and Left Turns...7301
H-13 Wheel Brakes Do Not Work or Are Weak...7303
H-14 Wheel Brakes Are Not Released or Drag...7305
H-15 Parking Brake Does Not Work or It is Weak...7305
H-16 Parking Brake is Not Released or It Drags (Including Emergency Release System)...7306
H-17 Boom Does Not Rise...7307
H-18 Boom Moves Slow or Boom Lacks Lifting Force...7309
H-19 Rising Boom Slows Down at Certain Height...7311
H-20 Boom Cylinders Do Not Serve to Hold Bucket on Ground...7312
H-21 Hydraulic Drift of Boom is Large...7313
H-22 Boom Moves Up and Down During Operation...7314
H-23 Bucket Does Not Tilt Back...7315
H-24 Bucket Moves Slow or Bucket Lacks Tilt-Back Force...7317
H-25 Bucket Decelerates During Tilt-Back Operation...7319
H-26 Bucket Cylinder Does Not Hold Bucket on Ground...7321
H-27 Hydraulic Drift of Bucket is Large...7322
H-28 Bucket Tilts Back and Forth During Carrying Load (Work Equipment Valve in “Hold”)...7323
H-29 Boom and Bucket Control Levers Do Not Move Smoothly and Heavy to Move...7324
H-30 Operating Work Equipment Causes Engine Speed to Lower Significantly or Engine to Stall...7325
H-31 Large Shocks Are Made When Work Equipment Starts to Move and Stops...7327
H-32 When Certain Work Equipment Stalls Hydraulically, Other Work Equipment Moves...7328
H-33 E.C.S.S. (Travel Damper) Does Not Work and Machine Pitches and Bounces...7329
H-34 Air Conditioner Does Not Work While Cooling Fan Rotates in Reverse Mode...7330
H-35 Fan Speed is Abnormal (Too High or Low, or Fan Does Not Rotate)...7331
H-36 Unusual Noise is Heard from Around Fan...7332
TROUBLESHOOTING OF ENGINE (S-MODE)...7333
Information Mentioned in Troubleshooting Table (S-Mode)...7333
S-1 When Starting Switch is Turned to START Position, Engine Does Not Crank...7334
S-2 When Engine Cranks, but No Exhaust Smoke Comes Out...7335
S-3 Fuel is Being Injected but Engine Does Not Start (Misfiring: Engine Cranks but Does Not Start)...7336
S-4 Engine Startability is Poor...7338
S-5 Engine Does Not Pick Up Smoothly...7340
S-6 Engine Stops During Operation...7342
S-7 Engine Runs Rough or is Unstable...7344
S-8 Engine Lacks Power...7345
S-9 Exhaust Smoke is Black (KDPF Clogs Up Early)...7348
S-10 Engine Oil Consumption is Excessive...7350
S-11 Oil Becomes Contaminated Quickly...7351
S-12 Fuel Consumption is Excessive...7352
S-13 Oil is in Coolant (or Coolant Spurts or Coolant Level Goes Down)...7353
S-14 Engine Oil Pressure Drops...7354
S-15 Fuel Mixes in Engine Oil...7356
S-16 Water mixes into Engine Oil (Milky)...7357
S-17 Coolant Temperature Rises Too High (Overheating)...7358
S-18 Unusual Noise is Heard...7359
S-19 Vibration is Excessive...7360
S-20 Air Cannot Be Bled From Circuit...7361
S-21 Active Regeneration is Executed Frequently...7362
S-22 Active Regeneration Takes Time...7363
S-23 White Smoke is Exhausted During Active Regeneration...7364
50 DISASSEMBLY AND ASSEMBLY...7366
HOW TO READ THIS SECTION...7371
Removal and Installation of Assemblies...7371
Special Tools...7371
Removal...7371
Installation...7371
Disassembly and Assembly of Assemblies...7372
Special Tools...7372
Disassembly...7372
Assembly...7372
COATING MATERIALS LIST...7373
SPECIAL TOOLS LIST...7377
SKETCHES OF SPECIAL TOOLS...7381
CONNECTOR REPAIR PROCEDURES...7389
Stripping Insulation...7389
Wire Inspection...7389
Contact Terminal Removal (HD30 Type)...7390
Crimping Contact Terminal (HD30 Type)...7391
Insertion Of Contact Terminal (HD30 Type)...7392
Contact Terminal Removal (DT Type)...7393
Crimping Contact Terminal (DT Type)...7394
Insertion Of Contact Terminal (DT Type)...7395
ENGINE AND COOLING SYSTEM...7396
Supply Pump Assembly...7396
Removal...7396
Installation...7399
Injector Assembly...7401
Special Tools...7401
Removal...7401
Installation...7408
Cylinder Head Assembly...7415
Removal...7415
Installation...7425
Engine Hood...7441
Removal...7441
Installation...7444
Grille Assembly...7445
Removal...7445
Installation...7446
Cooling System Assembly...7447
Removal...7447
Installation...7449
Radiator Core Assembly...7451
Removal...7451
Installation...7454
After Cooler...7455
Removal...7455
Installation...7456
Hydraulic Oil Cooler...7457
Removal...7457
Installation...7457
Fuel Cooler Assembly...7458
Removal...7458
Installation...7458
Engine, Torque Converter and Transmission Assemblies...7459
Removal...7459
Installation...7467
Disconnect and Connection of Engine, Torque Converter and Transmission Assembly...7471
Disconnection...7471
Connection...7472
Engine Front Oil Seal...7473
Removal...7473
Installation...7475
Engine Rear Oil Seal...7477
Removal...7477
Installation...7478
Cooling Fan and Fan Motor Assembly...7481
Removal...7481
Installation...7482
KDPF Assembly...7483
Removal...7483
Installation...7486
Disassembly and Assembly of KDPF Assembly...7487
Disassembly...7487
Assembly...7493
KCCV Assembly...7499
Removal...7499
Installation...7499
Air Cleaner Assembly...7501
Removal...7501
Installation...7503
Fuel Tank...7505
Removal...7505
Installation...7508
POWER TRAIN...7509
Disassembly and Assembly of Torque Converter Assembly...7509
Disassembly...7509
Assembly...7512
Transmission...7519
Disassembly...7519
Assembly...7526
Transmission Clutch Pack Assembly...7537
Disassembly...7537
Assembly...7545
Differential Assembly...7558
Disassembly...7558
Assembly...7567
Parking Brake...7583
Disassembly...7583
Assembly...7586
Front Axle...7593
Removal...7593
Installation...7594
Rear Axle...7595
Removal...7595
Installation...7597
Axle Housing...7600
Disassembly...7600
Assembly...7605
STEERING SYSTEM...7613
Steering Valve Assembly...7613
Removal...7613
Installation...7614
BRAKE SYSTEM...7615
Parking Brake Discs and Plates...7615
Removal...7615
Drain the oil from the transmission case...7615
Installation...7617
UNDERCARRAGE AND FRAME...7619
Center Hinge Pin...7619
Installation...7624
Counterweight...7629
Removal...7629
Installation...7630
Full-Length Fender Assembly...7631
Removal...7631
Installation...7632
HYDRAULIC SYSTEM...7633
Hydraulic Tank Assembly...7633
Removal...7633
Installation...7636
Work Equipment Control Valve...7637
Removal...7637
Installation...7641
Power Train Pump and Work Equipment Pump Assembly...7643
Removal...7643
Installation...7644
Steering Pump And Cooling Fan Pump Assembly...7645
Installation...7646
Hydraulic Cylinder...7647
Disassembly...7647
Assembly...7651
WORK EQUIPMENT...7657
Work Equipment Assembly...7657
Removal...7657
Installation...7661
CAB AND ATTACHMENTS...7665
Cab and Floor Frame...7665
Removal...7665
Installation...7669
Cab Glass (Stuck Window Glass)...7671
Removal...7671
Installation...7672
Operator Seat Assembly...7680
Removal...7680
Installation...7681
Seat Belt...7682
Removal...7682
Installation...7682
ELECTRICAL SYSTEM...7683
Machine Monitor Assembly...7683
Removal...7683
Installation...7683
Engine Controller Assembly...7684
Removal...7684
Installation...7684
Work Equipment Controller Assembly...7686
Removal...7686
Installation...7687
Transmission Controller Assembly...7688
Removal...7688
Installation...7688
Monitor Controller Assembly...7689
Removal...7689
Installation...7691
Mass Air Flow and Temperature Sensor...7693
Removal...7693
Installation...7693
KOMTRAX Terminal Assembly...7694
Removal...7694
Installation...7694
60 MAINTENANCE STANDARD...7696
ENGINE AND COOLING SYSTEM...7699
Engine Related Parts...7699
Cooling Fan Clamp...7701
Servo Valve...7703
Cooling Fan Motor...7705
POWER TRAIN...7707
Drive Shaft...7707
Torque Converter...7708
Transmission...7711
Forward and Reverse Clutches...7717
1st and 4th Clutches...7718
2nd and 3rd Clutches...7719
Transmission Control Valve...7721
Forward and Reverse Clutch ECMV and Gear Speed Clutch ECMV...7723
Lockup Clutch ECMV...7724
Main Relief and Torque Converter Relief Valve...7725
Differential...7727
Front Differential (Standard: Conventional Differential)...7727
Rear differential (Standard: Conventional Differential)...7729
Limited Slip Differential...7731
Front Axle...7731
Rear Axle...7733
Final Drive...7735
STEERING SYSTEM...7737
Steering Column...7737
Steering Pump...7738
Pump Body...7739
Servo Valve...7741
Steering Valve...7742
Steering Cylinder...7743
Emergency Steering Pump (if equipped)...7745
Brake System...7747
Charge Valve...7747
Brakes...7749
Front Brake...7749
Rear Brake...7750
Parking Brake...7751
Parking Brake Solenoid Valve...7752
UNDERCARRIAGE AND FRAME...7753
Axle Mount and Center Hinge Pin...7753
HYDRAULIC SYSTEM...7757
Hydraulic Tank...7757
Double Type Gear Pump...7758
Power Train Charge Pump and Power Train Lubrication Pump...7758
WORK EQUIPMENT PUMP...7760
Pump Body...7761
Servo Valve...7763
CONTROL VALVE...7765
STABILIZER VALVE...7777
WORK EQUIPMENT...7779
Work Equipment Linkage...7779
BUCKET...7781
WORK EQUIPMENT CYLINDER...7783
Boom Cylinder...7783
Bucket Cylinder...7783
80 AIR CONDITIONING...7784
AIR CONDITIONER...7787
Precautions for Refrigerant...7787
Air Conditioner Component...7789
Structure and Function of Refrigeration System...7791
Overview of Refrigeration System...7792
Air Conditioner Unit...7795
Function...7796
Functions of Major Components...7798
Evaporator...7798
Heater Core...7798
Evaporator Temperature Sensor...7798
Inner Sensor...7798
Blower Amplifier...7798
Blower Off Relay...7798
Compressor Clutch Relay...7798
Servomotor...7799
Expansion Valve...7800
Dual Pressure Switch...7800
Air Conditioner Controller...7800
Compressor...7801
Condenser...7802
Receiver...7803
Sunlight Sensor...7804
Outside Air Temperature Sensor...7804
Inspection and Troubleshooting Procedure of Air Conditioner...7804
Basic Inspection and Troubleshooting Sequence...7805
Air Conditioner Circuit Diagram and Arrangement of Connector Pins...7807
System Diagram...7809
Parts and Connectors Layout...7811
Testing with Self-Diagnosis Function...7816
How to Enter Air Conditioner “Electrical Systems” Screen in Service Mode of the Machine Monitor...7817
Testing Temperature Control System...7819
Testing...7819
Testing Vent (Mode) Changeover...7821
Testing...7821
Testing FRESH/RECIRC Air Changeover...7823
Testing Relay...7824
Troubleshooting Chart 1...7825
Troubleshooting Chart 2...7826
Information Mentioned in Troubleshooting Table...7829
Information in Troubleshooting Table...7829
Troubleshooting with Gauge Pressure...7831
Testing Refrigerant Pressure...7835
Precautions for Disconnecting and Connecting Refrigerant Piping...7837
Disconnection...7837
Connection...7837
Filling Compressor Oil...7839
90 DIAGRAMS AND SCHEMATICS...7842
HYDRAULIC SYSTEM...7844
Hydraulic Circuit Diagram...7847
Power Train Hydraulic Circuit Diagram...7848
ELECTRICAL SYSTEM...7850
Symbols in Electrical Circuit Diagram...7850
Electrical Circuit Diagram (1/5)...7854
Electrical Circuit Diagram (2/5)...7855
Electrical Circuit Diagram (3/5)...7856
Electrical Circuit Diagram (4/5)...7857
Electrical Circuit Diagram (5/5)...7858
Electrical Circuit Floor Diagram (1/8)...7859
Electrical Circuit Floor Diagram (2/8)...7860
Electrical Circuit Floor Diagram (3/8)...7861
Electrical Circuit Floor Diagram (4/8)...7862
Electrical Circuit Floor Diagram (5/8)...7863
Electrical Circuit Floor Diagram (6/8)...7864
Electrical Circuit Floor Diagram (7/8)...7865
Electrical Circuit Floor Diagram (8/8)...7866
Electrical Circuit Air Conditioner Diagram...7867
CEBMW23091 - Wheel Loader WA380-3 Shop Manual...7868
CONTENTS...7869
01 GENERAL...7891
SPECIFICATION DRAWINGS...7892
SPECIFICATIONS...7893
WEIGHT TABLE...7896
FUEL, COOLANT AND LUBRICANTS...7897
ENGINE OIL SPECIFICATIONS...7898
DIESEL FUEL SPECIFICATIONS...7899
COOLANT SPECIFICATIONS...7900
10 STRUCTURE AND FUNCTION...7905
POWER TRAIN...7906
POWER TRAIN SYSTEM...7907
TORQUE CONVERTER, TRANSMISSION PIPING...7909
TRANSMISSION HYDRAULIC SYSTEM DIAGRAM...7910
TRANSMISSION HYDRAULIC CIRCUIT DIAGRAM...7911
TORQUE CONVERTER...7912
TORQUE CONVERTER OIL FILTER...7914
TRANSMISSION...7915
TRANSMISSION CONTROL VALVE...7926
DRIVE SHAFT...7950
AXLE...7951
DIFFERENTIAL...7953
FINAL DRIVE...7957
AXLE MOUNT, CENTER HINGE PIN...7958
STEERING PIPING...7960
STEERING COLUMN...7961
STEERING VALVE...7962
ORBIT-ROLL VALVE...7976
STOP VALVE...7980
EMERGENCY STEERING PUMP...7981
DIVERTER VALVE...7982
BRAKE PIPING...7985
BRAKE HYDRAULIC CIRCUIT DIAGRAM...7986
BRAKE VALVE...7987
ACCUMULATOR CHARGE VALVE...7992
ACCUMULATOR (FOR BRAKE)...7996
BRAKE...7998
PARKING BRAKE CONTROL...8000
PARKING BRAKE...8001
PARKING BRAKE SOLENOID VALVE...8002
PARKING BRAKE VALVE...8003
PARKING BRAKE EMERGENCY RELEASE SOLENOID VALVE...8004
HYDRAULIC PIPING...8005
WORK EQUIPMENT HYDRAULIC SYSTEM DIAGRAM...8007
WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM...8008
STRUCTURE AND FUNCTION WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM...8009
WORK EQUIPMENT LEVER LINKAGE...8010
HYDRAULIC TANK...8011
PPC VALVE...8013
PPC RELIEF VALVE...8018
ACCUMULATOR (FOR PPC VALVE)...8019
MAIN CONTROL VALVE...8020
WORK EQUIPMENT LINKAGE...8035
BUCKET...8037
BUCKET POSITIONER AND BOOM KICK-OUT...8038
CAB...8044
AIR CONDITIONER...8045
ELECRIC CIRCUIT DIAGRAM...8046
ELECTRIC CIRCUIT DIAGRAM (1/4)...8047
ELECTRIC CIRCUIT DIAGRAM (2/4)...8048
ELECTRIC CIRCUIT DIAGRAM (3/4)...8049
ELECTRIC CIRCUIT DIAGRAM (4/4)...8050
ELECTRIC CIRCUIT DIAGRAM...8051
ELECTRIC CIRCUIT DIAGRAM...8052
MACHINE MONITOR SYSTEM...8053
MAIN MONITOR...8054
MAINTENANCE MONITOR...8058
TRANSMISSION AUTO-SHIFT CONTROL SYSTEM...8061
E.C.S.S. (ELECTRONICALLY CONTROL SUSPENSION SYSTEM)...8068
SENSORS...8072
ENGINE STARTING CIRCUIT...8076
ENGINE STOP CIRCUIT...8077
ETHER START CIRCUIT...8078
ELECTRIC TRANSMISSION CONTROL...8079
KICK-DOWN, HOLD SWITCH...8082
KICK-DOWN ELECTRIC CIRCUIT DIAGRAM...8083
TRANSMISSION CUT-OFF FUNCTION...8088
ELECTRIC PARKING BRAKE CONTROL...8090
20 STRUCTURE AND FUNCTION...8102
STANDARD VALUE TABLE FOR ENGINE...8103
STANDARD VALUE TABLE FOR CHASSIS...8104
STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM...8108
SERVICE TOOLS FOR TESTING, ADJUSTING & TROUBLESHOOTING...8112
MEASURING ENGINE SPEEDS...8113
MEASURING INTAKE MANIFOLD PRESSURE...8113
MEASURING INTAKE AIR RESTRICTION...8113
MEASURING LUBRICATING OIL PRESSURE...8114
MEASURING FUEL FILTER INLET RESTRICTION...8114
MEASURING BLOW-BY PRESSURE...8114
MEASURING EXHAUST BACK PRESSURE...8115
MEASURING EXHAUST GAS COLOR...8116
MEASURING COOLANT TEMPERATURE...8117
MEASURING AND ADJUSTING VALVE CLEARANCE...8117
MEASURING WASTEGATE ACTUATOR CALIBRATION...8117
MEASURING STALL SPEEDS...8118
MEASURING ACCELERATOR PEDAL...8120
MEASURING OPERATING FORCE & TRAVEL OF DIRECTIONAL & SPEED LEVERS...8122
MEASURING TORQUE CONVERTER, TRANSMISSION, PARKING BRAKE OIL PRESSURE...8123
METHOD OF OPERATING EMERGENCY MANUAL SPOOL...8125
MEASURING CLEARANCE BETWEEN TIRE AND WHEEL...8127
TESTING AND ADJUSTING STEERING WHEEL...8128
TESTING AND ADJUSTING STEERING CONTROL...8131
MEASURING STEERING OIL PRESSURE...8132
MEASURING OPERATING FORCE, TRAVEL OF BRAKE PEDAL...8134
MEASURING BRAKE PERFORMANCE...8135
TESTING BRAKE OIL PRESSURE...8136
TESTING FOR BRAKE DISC WEAR...8137
BLEEDING AIR FROM BRAKE SYSTEM...8138
MEASURING PARKING BRAKE PERFORMANCE...8139
MANUAL RELEASE METHOD FOR PARKING BRAKE...8140
TESTING WEAR OF PARKING BRAKE DISC...8141
MEASURING WORK EQUIPMENT CONTROL LEVER...8142
MEASURING WORK EQUIPMENT HYDRAULIC PRESSURE...8144
MEASURING PPC VALVE PRESSURE...8146
MEASURING WORK EQUIPMENT...8148
TESTING AND ADJUSTING BUCKET POSITIONER...8150
TESTING AND ADJUSTING BOOM KICK-OUT...8151
ADJUSTING MAIN MONITOR (SPEEDOMETER MODULE)...8153
TROUBLESHOOTING...8154
POINTS TO REMEMBER WHEN TROUBLESHOOTING...8155
SEQUENCE OF EVENTS IN TROUBLESHOOTING...8156
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE...8157
HANDLING CONNECTORS...8164
CHECKS BEFORE TROUBLESHOOTING...8165
METHOD OF USING TROUBLESHOOTING CHARTS...8166
TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)...8174
S-1 Starting performance is poor (Starting always takes time)...8175
S-2 Engine does not start...8176
(1) Engine does not turn...8176
(2) Engine turns but no exhaust gas comes out (Fuel is not being injected)...8177
(3) Exhaust gas comes out but engine does not start (Fuel is being injected)...8178
S-3 Engine does not pick up smoothly (Follow-up is poor)...8179
S-4 Engine stops during operations...8180
S-5 Engine does not rotate smoothly (hunting)...8181
S-6 Engine lacks output (no power)...8182
S-7 Exhaust gas is black (incomplete combustion)...8183
S-8 Oil consumption is excessive (or exhaust gas is blue)...8184
S-9 Oil becomes contaminated quickly...8185
S-10 Fuel consumption is excessive...8186
S-11 Oil is in cooling water, or water spurts back, or water level goes down...8187
S-12 Oil pressure lamp lights up (drop in oil pressure)...8188
S-13 Oil level rises...8189
S-14 Water temperature becomes too high (overheating)...8190
S-15 Abnormal noise is made...8191
S-16 Vibration is excessive...8192
TROUBLESHOOTING OF MAIN MONITOR SYSTEM (M MODE)...8193
TROUBLE DATA DISPLAY...8195
M-1 Main monitor does not work...8197
M-2 When starting switch is turned ON and engine is started immediately, all lamps stay lighted up...8198
M-3 Speedometer display does not work properly...8199
M-4 Abnormality in shift indicator...8200
(a) Stays at N even when directional lever is at F...8200
(b) Stays at N even when directional lever is at R...8200
(c) Does not display N even when directional lever is at N and displays R when directional lever is at F...8200
(d) Does not display N even when directional lever is at N and displays F when directional lever Cause Remedy...8201
(e) Does not display lst, 4th...8201
(f) Does not display 3rd, 4th...8201
(g) Does not display 2nd, 3rd...8202
(h) Does not display 1st 2nd...8202
M-5 High beam does not light up...8203
M-6 Turn signal display does not light up...8204
(a) L.H. turn signal does not light up...8204
(b) R.H. turn signal does not light up...8204
M-7 Abnormality in parking display...8205
(a) Parking lamp does not light up...8205
(b) Parking lamp stays lighted up...8205
TROUBLESHOOTING OF MAINTENANCE MONITOR SYSTEM (K MODE)...8223
K-1 When starting switch is turned ON, all lamps on maintenance monitor do not light up for 3 seconds, maintenance monitor does...8224
(a) All lamps on maintenance monitor do not light up for 3 seconds...8224
(b) Some lamps do not light up...8225
K-2 When starting switch is turned ON, all lamps on maintenance monitor light up but do not go out...8225
K-3 When engine is started immediately after starting switch is turned...8226
K-4 When starting switch is turned ON (engine stopped), CHECK items flash...8227
(a) Engine oil level display flashes...8227
(b) Engine water level display flashes...8228
K-5 When starting switch is turned ON (engine started), CAUTION items flash...8229
(a) Engine oil pressure display flashes...8229
(b) Battery charge level display flashes...8230
(c) Brake oil pressure display flashes...8231
(d) Air cleaner display flashes...8232
K-6 CAUTION items are flashing but alarm buzzer does not sound...8233
K-7 There is no abnormality in monitor display but alarm buzzer sounds...8234
K-8 CAUTION items are flashing but warning lamp (CHECK CAUTION lamp) does not light up lamp,...8235
(a) CHECK lamp...8235
(b) CAUTION lamp...8235
K-9 There is no abnormality in maintenance monitor display but warning lamp (CHECK lamp, CAUTION lamp) lights up...8236
(a) CHECK lamp...8236
(b) CAUTION lamp...8236
K-10 Night lighting does not light up when lamp switch is turned ON (only lighting of maintenance monitor does not light up)...8237
K-11 Night lighting lights up even when lamp switch is OFF, night lighting stays lighted up...8238
K-12 Service meter does not work...8239
K-13 Service meter is running even when engine is stopped...8239
K-14 Abnormality in gauge items...8240
(a) Abnormality in fuel gauge...8240
(b) Abnormality in engine water temperature gauge...8241
(c) Abnormality in torque converter oil temperature gauge...8242
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)...8243
E-1 Engine does not start...8244
(a) Starting motor does not turn...8244
(b) Starting motor turns...8248
E-2 Engine does not stop...8250
E-3 Engine stops when machine is traveling...8250
E-4 Parking brake does not work...8251
(a) Parking brake has no effect when parking brake switch is turned ON (parking)...8251
(b) Parking brake has no effect when brake pressure drops (Does not work as emergency brake)...8251
E-5 Parking brake is applied when machine is traveling...8252
E-6 Parking brake is released when starting switch is turned ON...8254
E-7 Transmission does not change when parking brake is applied to neutral when parking brake is applied...8254
E-8 Transmission does not work normally...8255
(a) Problem in common circuit for transmission (always stays in 2nd)...8257
(b) Problem in H-L circuit...8257
(c) Problem in speed circuit...8258
(d) Problem in 4th circuit (does not enter 4th)...8258
(e) Contact in H-L circuit...8259
(f) Contact in speed circuit...8261
(g) Contact in 4th circuit (always stays in 4th)...8263
(h) Problem in FORWARD circuit (REVERSE is normal)...8264
(i) Problem in REVERSE circuit (FORWARD is normal)...8266
(j) Problem in common circuit for FORWARD and REVERSE (does not travel forward, parking brake is normal)...8268
(k) Contact in FORWARD circuit...8270
(I) Contact in REVERSE circuit...8272
(m) Problem in common circuit for FORWARD and REVERSE...8274
E-9 Kick-down switch does not work (the regular F1 to F4 shifts normally)...8275
E-10 Kick-down works only when kick-down switch is ON (Kick-down switch relay does not hold in position (self-holding function)...8277
E-11 Kick-down operation cannot be canceled...8277
(a) Not canceled even when directional lever is moved from F to N or R...8277
(b) Not canceled even when speed lever is moved from 2nd to other position (becomes 4th)...8278
E-12 Kick-down switch is actuated by mistake when traveling in 2nd...8280
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (CHASSIS RELATED) (T MODE)...8281
POWER TRAIN...8282
T-1 Machine does not start...8282
T-2 Travel speed is slow, thrusting power is weak, lacks power on slopes...8284
T-3 Excessive shock when starting machine or shifting gear...8286
T-4 Excessive time lag when starting machine or shifting...8287
T-5 Torque converter oil temperature is high...8288
STEERING SYSTEM...8289
T-6 Steering does not turn...8289
T-7 Steering wheel is heavy...8290
T-8 Steering wheel wobbles or there is excessive shock...8291
T-9 Machine steers to one side when traveling...8291
T-10 Turning radius to left and right is different...8291
BRAKE SYSTEM...8292
T-11 Brakes do not work or braking effect is poor...8292
T-12 Brakes are not released or brakes drag...8293
T-13 Parking brake is not released or brake drags...8294
WORK EQUIPMENT...8295
T-14 Boom does not rise...8295
T-15 Boom movement is slow or boom lacks lifting power...8296
T-16 When boom is raised, it moves slowly at a certain height...8297
T-17 Bucket cannot be pushed with boom cylinder (bucket floats)...8297
T-18 Excessive hydraulic drift of boom...8297
T-19 Boom shakes during operation...8297
T-20 Boom drops momentarily when control lever is operated from HOLD to RAISE...8298
T-21 Bucket does not tilt back...8299
T-22 Bucket movement is slow or tilt-back lacks power...8300
T-23 Bucket movement becomes slow during tilt-back operation...8301
T-24 Bucket cannot be pushed with bucket cylinder...8301
T-25 Excessive hydraulic drift of bucket...8301
T-26 Bucket shakes during loading operation (Main control valve at HOLD)...8302
T-27 Bucket dumps momentarily when control lever is operated from HOLD to TILT...8302
T-28 Boom, bucket control levers are heavy or do not move smoothly...8303
TROUBLESHOOTING OF ECSS (ELECTRONICALLY CONTROLLED SUSPENSION SYSTEM) (D MODE)...8304
JUDGEMENT TABLE FOR CONTROLLER ELECTRICAL SYSTEM...8305
D-1 ECSS does not work...8306
(a) Error code [d0] is displayed...8307
(b) Error code [d1] is displayed...8307
(c) Error code [d2] is displayed...8308
(e) Error code [d4] is displayed...8309
(f) No abnormality display is given...8309
D-2 ECSS cannot be canceled...8313
D-3 Output is turned ON (travel speed does not become 5 km/h) (deviates around 5 km/h)...8314
D-4 Output is turned ON when transmission is in 1st...8314
D-5 Output is turned ON when transmission is in 4th...8315
D-6 Controller LED code is not displayed...8316
D-7 ECSS is abnormal but main monitor does not give abnormality display...8316
TROUBLESHOOTING OF TRANSMISSION CONTROLLER SYSTEM (A MODE)...8317
OUTLINE...8318
1. Function...8318
2. When carrying out troubleshooting...8318
3. Failure code table...8318
4. Table of troubleshooting modes and causes...8319
A-1 Troubleshooting code [10] Modulation valve solenoid system (disconnection, short circuit)...8320
A-2 Troubleshooting code [11] Short circuit in power source for modulation valve solenoid system...8321
A-3 Troubleshooting code [12] F solenoid signal system...8322
A-4 Troubleshooting code [13] R solenoid signal system...8322
A-5 Troubleshooting code [14] Abnormality system in H-L solenoid signal...8323
A-6 Troubleshooting code [16] Abnormality in speed solenoid signal system...8324
A-7 Troubleshooting code [17] Brake output signal...8325
A-8 Troubleshooting code [20] Abnormality in directional lever signal system...8326
A-9 Troubleshooting code [21] Abnormality in speed lever signal system...8327
A-10 Troubleshooting code [22] Abnormality in travel speed signal...8328
A-11 Troubleshooting code [23] Abnormality in engine speed signal...8329
A-12 Hold switch system...8330
A-13 Kick-down switch system...8330
A-14 Kick-down output signal system...8331
A-15 Transmission cut-off signal system...8332
A-16 Neutralizer signal system...8333
A-17 Buzzer signal system...8334
A-18 Network signal system...8335
A-19 Controller power source system...8336
A-20 Abnormality in model selection wiring harness...8337
TROUBLESHOOTING OF EAGLE AIR CONDITIONER...8338
30 DISASSEMBLY AND ASSEMBLY...8342
METHOD OF USING MANUAL...8344
PRECAUTIONS WHEN CARRYING OUT OPERATION...8345
SPECIAL TOOL LIST...8347
STARTING MOTOR...8349
REMOVAL AND INSTALLATION (SEE ENGINE SHOP MANUAL)...8349
ENGINE OIL COOLER...8351
REMOVAL AND INSTALLATION (SEE ENGINE SHOP MANUAL)...8351
FUEL INJECTION PUMP...8352
REMOVAL (SEE ENGINE SHOP MANUAL)...8352
INSTALLATION (SEE ENGINE SHOP MANUAL)...8353
WATER PUMP...8354
REMOVAL AND INSTALLATION (SEE ENGINE SHOP MANUAL)...8354
TURBOCHARGER...8355
REMOVAL AND INSTALLATION (SEE ENGINE SHOP MANUAL)...8355
NOZZLE HOLDER...8356
REMOVAL AND INSTALLATION (SEE ENGINE SHOP MANUAL)...8356
THERMOSTAT...8357
REMOVAL AND INSTALLATION (SEE ENGINE SHOP MANUAL)...8357
CYLINDER HEAD...8358
REMOVAL (SEE ENGINE SHOP MANUAL)...8358
INSTALLATION (SEE ENGINE SHOP MANUAL)...8359
RADIATOR...8360
REMOVAL...8360
INSTALLATION ...8363
ENGINE...8364
REMOVAL ...8364
ENGINE...8365
TORQUE CONVERTER CHARGING PUMP...8366
REMOVAL...8366
INSTALLATION...8367
TORQUE CONVERTER, TRANSMISSION...8368
REMOVAL...8368
INSTALLATION...8372
TORQUE CONVERTER...8373
DISASSEMBLY...8373
ASSEMBLY...8375
TRANSMISSION...8378
DISASSEMBLY...8378
ASSEMBLY...8388
TRANSMISSION CLUTCH PACK...8401
DISASSEMBLY...8401
ASSEMBLY...8408
TRANSMISSION CONTROL VALVE...8420
REMOVAL...8420
INSTALLATION...8422
DISASSEMBLY...8423
ASSEMBLY...8425
TRANSMISSION ACCUMULATOR VALVE...8428
DISASSEMBLY...8428
ASSEMBLY...8429
DRIVE SHAFT...8430
DISASSEMBLY...8430
ASSEMBLY...8433
FRONT AXLE...8435
REMOVAL...8435
INSTALLATION...8437
REAR AXLE...8438
REMOVAL...8438
INSTALLATION...8442
DIFFERENTIAL...8444
DISASSEMBLY...8444
ASSEMBLY...8449
AXLE HOUSING...8459
DISASSEMBLY...8459
ASSEMBLY...8466
CENTER HINGE PIN...8476
REMOVAL...8476
INSTALLATION...8480
STEERING VALVE...8483
REMOVAL...8483
INSTALLATION...8485
DISASSEMBLY...8486
ASSEMBLY...8490
ORBIT-ROLL VALVE...8493
REMOVAL...8493
INSTALLATION...8494
DISASSEMBLY...8495
ASSEMBLY...8498
STEERING CYLINDER...8503
REMOVAL...8503
INSTALLATION...8504
BRAKE VALUE...8505
REMOVAL...8505
INSTALLATION...8506
RIGHT BRAKE VALVE...8507
DISASSEMBLY...8507
ASSEMBLY...8508
LEFT BRAKE VALVE...8509
DISASSEMBLY...8509
ASSEMBLY...8510
PARKING BRAKE DISC...8511
REMOVAL...8511
INSTALLATION...8513
HYDRAULIC TANK...8514
REMOVAL...8514
INSTALLATION...8516
HYDRAULIC FILTER...8517
HYDRAULIC, STEERING, SWITCH, PPC PUMP...8518
REMOVAL...8518
INSTALLATION...8521
MAIN CONTROL VALVE...8522
REMOVAL...8522
INSTALLATION...8524
DISASSEMBLY...8525
ASSEMBLY...8527
3 SPOOL VALVE...8530
DISASSEMBLY...8530
ASSEMBLY...8532
PPC VALVE...8535
REMOVAL...8535
INSTALLATION...8537
DISASSEMBLY...8538
ASSEMBLY...8539
BUCKET CYLINDER...8540
REMOVAL...8540
INSTALLATION...8542
BOOM CYLINDER...8543
REMOVAL...8543
INSTALLATION...8544
HYDRAULIC CYLINDER...8545
DISASSEMBLY...8545
ASSEMBLY...8548
WORK EQUIPMENT...8551
REMOVAL...8551
INSTALLATION...8554
COUNTERWEIGHT...8556
REMOVAL AND INSTALLATION...8556
FUEL TANK...8557
REMOVAL...8557
INSTALLATION...8559
CAB, FLOOR FRAME...8560
REMOVAL...8560
INSTALLATION...8563
CAB...8564
REMOVAL...8564
INSTALLATION...8565
MAIN MONITOR...8566
REMOVAL...8566
INSTALLATION...8567
MAINTENANCE MONITOR...8568
REMOVAL AND INSTALLATION...8568
AIR CONDITIONER UNIT...8569
REMOVAL...8569
INSTALLATION...8574
AIR CONDITIONER CONDENSER...8575
REMOVAL...8575
INSTALLATION...8576
DRY RECEIVER...8577
REMOVAL AND INSTALLATION...8577
AIR CONDITIONER CONDENSER COMPRESSOR...8578
REMOVAL AND INSTALLATION...8578
40 MAINTENANCE STANDARD...8579
ENGINE MOUNT, TRANSMISSION MOUNT...8580
TORQUE CONVERTER CHARGING PUMP...8581
TORQUE CONVERTER...8582
TRANSMISSION...8583
TRANSMISSION CONTROL VALVE...8592
FLOW CONTROL VALVE...8596
ACCUMULATOR VALVE...8597
DRIVE SHAFT...8598
DIFFERENTIAL (1/2)...8599
FINAL DRIVE...8602
AXLE MOUNT...8604
CENTER HINGE PIN...8605
STEERING COLUMN...8607
STEERING VALVE...8608
STEERING CYLINDER MOUNT...8609
BRAKE...8610
BRAKE VALVE...8611
PARKING BRAKE...8614
MAIN CONTROL VALVE...8615
PPC VALVE...8619
HYDRAULIC CYLINDER...8620
WORK EQUIPMENT LINKAGE...8621
BUCKET...8623
BUCKET POSITIONER AND BOOM KICK-OUT...8624
GSBM006102 - Cargadora Avance WA380-3 Manual de Taller...8626
PORTADA...8626
CONTENIDO...8627
SEGURIDAD...8628
PROLOGO...8630
FORMA DE LEER EL MANUAL DE TALLER...8631
INSTRUCCIONES PARA ELEVACIÓN DE PESOS...8632
MATERIALES DE RECUBRIMIENTO...8633
TORSIÓN ESTÁNDAR...8634
TABLAS DE CONVERSIÓN...8637
01 GENERAL...8643
DIBUJO DE ENSAMBLAJE GENERAL...8644
ESPECIFICACIONES...8645
TABLA DE PESO...8648
SELECCION APROPIADA DE COMBUSTIBLE, REFRIGERANTE Y LUBRICANTES...8649
10 ESTRUCTURA Y FUNCIONAMIENTO...8651
TREN DE POTENCIA...8653
SISTEMA DEL TREN DE POTENCIA...8654
CONVERTIDOR DE TORSIÓN, TUBERÍAS DE LA TRANSMISIÓN...8656
DIAGRAMA DEL SISTEMA HIDRÁULICO DE LA TRANSMISIÓN...8658
DIAGRAMA DEL CIRCUITO HIDRÁULICO DE LA TRANSMISIÓN...8659
CONVERTIDOR DE TORSIÓN...8660
FILTRO DE ACEITE DEL CONVERTIDOR...8662
TRANSMISIÓN...8664
VÁLVULA DE CONTROL DE LA TRANSMISION...8674
EJE TRANSMISOR...8696
DIFERENCIAL...8699
MANDO FINAL...8703
MONTAJE DEL EJE, PASADOR CENTRAL DE ARTICULACIÓN...8704
TUBERÍAS DE DIRECCIÓN...8706
COLUMNA DE LA DIRECCION...8707
VÁLVULA DE LA DIRECCIÓN...8708
CARRETE DE DIRECCIÓN EN OPERACIÓN...8710
OPERACIÓN DE LA VÁLVULA DE DIRECCIÓN...8715
VÁLVULA DE ALIVIO DE LA DIRECCIÓN...8718
VÁLVULA ORBIT-ROLL...8722
VÁLVULA DE PARADA...8726
BOMBA DE EMERGENCIA PARA LA DIRECCIÓN...8727
VÁLVULA DESVIADORA...8728
TUBERÍAS PARA LOS FRENOS...8732
DIAGRAMA DEL CIRCUITO HIDRÁULICO DE LOS FRENOS...8733
VÁLVULA DEL FRENO...8734
VÁLVULA DE CARGA DEL ACUMULADOR...8739
ACUMULADOR (PARA EL FRENO)...8743
FRENO...8745
CONTROL DEL FRENO DE ESTACIONAMIENTO...8747
FRENO DE ESTACIONAMIENTO...8748
VALVULA SOLENOIDE DEL FRENO DE ESTACIONAMIENTO...8749
TUBERÍAS HIDRÁULICAS...8753
DIAGRAMA DEL SISTEMA HIDRÁULICO DEL EQUIPO DE TRABAJO...8754
DIAGRAMA DEL CIRCUITO HIDRÁULICO DEL EQUIPO DE TRABAJO...8755
VARILLAJE DE LAS PALANCAS DEL EQUIPO DE TRABAJO...8757
TANQUE HIDRÁULICO...8758
VÁLVULA DE DESVÍO DEL FILTRO DE ACEITE...8759
VÁLVULA PPC...8760
VÁLVULA DE CONTROL PRINCIPAL...8768
VARILLAJE DEL EQUIPO DE TRABAJO...8784
CUCHARÓN...8786
CABINA...8793
ACONDICIONADOR DE AIRE...8794
DIAGRAMA DEL CIRCUITO ELECTRICO...8804
SISTEMA MONITOR DE LA MAQUINA...8812
MONITOR PRINCIPAL...8813
MONITOR DE MANTENIMIENTO...8818
SISTEMA DE CONTROL DEL EQUIPO DE TRABAJO...8821
CONTROLADOR...8826
POTENCIÓMETRO...8827
E.C.S.S...8828
SENSORES...8832
CIRCUITO DE ARRANQUE DEL MOTOR...8836
CIRCUITO DE PARADA DEL MOTOR...8837
CIRCUITO DE PRECALENTAMIENTO...8838
DISYUNTOR DEL DESCONECTOR...8842
DIAGRAMA DEL CIRCUITO ELÉCTRICO DEL DESCONECTOR...8843
INTERRUPTOR DE CORTE DE LA TRANSMISION...8848
CONTROL ELECTRICO DEL FRENO DE ESTACIONAMIENTO...8851
20 PRUEBAS Y REGULACIONES...8863
TABLA ESTANDARD DE VALORES PARA EL MOTOR...8864
TABLA ESTANDARD DE VALORES PARA EL CHASIS...8865
TABLA ESTANDARD DE VALORES PARA EL SISTEMA ELECTRICO...8869
LISTADO DE HERRAMIENTAS PARA PRUEBAS Y REGULACIONES...8873
AJUSTE DE LA HOLGURA DE LAS VALVULAS...8874
MEDICIÓN DE LA PRESIÓN DE COMPRESION...8875
MEDICIÓN DE FUGAS DE COMPRESIÓN...8876
COMPROBACIÓN Y AJUSTE DE LA SINCRONIZACION DE LA INYECCION...8877
MEDICIÓN DEL COLOR DEL HUMO DEL ESCAPE...8879
MEDICIÓN DE LA PRESIÓN DEL AIRE DE ADMISION (PRESION REFORZADORA)...8880
MEDICIÓN DE LA TEMPERATURA DE LOS GASES DE ESCAPE...8881
MEDICIÓN DE LA PRESIÓN DE ACEITE DEL MOTOR...8882
MEDICIÓN DE LA VELOCIDAD DEL MOTOR...8883
PRUEBAS Y AJUSTES DE LA TENSIÓN DE LA CORREA DEL VENTILADOR...8884
MÉTODO PARA AJUSTAR EL CABLE DEL MOTOR DE PARADA DEL MOTOR DE COMBUSTION...8885
MEDICIÓN DEL PEDAL DEL ACELERADOR...8887
MEDICIÓN DE LA FUERZA DE OPERACION, RECORRIDO DE LA PALANCA DE VELOCIDAD...8889
MEDICIÓN DE LA PRESIONA DE ACEITE DEL CONVERTIDOR, TRANSMISION Y FRENO DE ESTACIONAMIENTO...8892
MÉTODO DE OPERACIÓN DEL CARRETE MANUAL DE EMERGENCIA...8894
MEDICIÓN DE LA HOLGURA ENTRE EL NEUMATICO Y LA RUEDA...8896
PRUEBA Y AJUSTE DEL VOLANTE DE LA DIRECCION...8897
MEDICIÓN DE LA PRESIÓN DEL ACEITE DE LA DIRECCION...8901
MEDICIÓN DE LA FUERZA DE OPERACION, RECORRIDO DEL PEDAL DEL FRENO...8903
MEDICIÓN DEL COMPORTAMIENTO DE LOS FRENOS...8904
COMPROBACIÓN DE LA PRESIÓN DEL ACEITE DE LOS FRENOS...8905
COMPROBACIÓN DEL DESGASTE DE LOS DISCOS DEL FRENO...8906
PURGA DEL AIRE EN EL SISTEMA DE FRENOS...8907
MEDICIÓN DEL COMPORTAMIENTO DEL FRENO DE ESTACIONAMIENTO...8908
MÉTODO PARA SOLTAR MANUALMENTE EL FRENO DE ESTACIONAMIENTO...8909
COMPROBACIÓN DEL DESGASTE DEL DISCO DEL FRENO DE ESTACIONAMIENTO...8910
MEDICIÓN DE LA PALANCA DE CONTROL DEL EQUIPO DE TRABAJO...8911
MEDICIÓN DE LA PRESIÓN HIDRÁULICA DEL EQUIPO DE TRABAJO...8913
MEDICIÓN DE LA PRESIÓN EN LA VALVULA PPC...8915
MEDICIÓN DEL EQUIPO DE TRABAJO...8917
COMPROBACIÓN Y AJUSTE DEL POSICIONADOR DEL CUCHARON...8919
PRUEBAS Y AJUSTES DEL DESCONECTOR DEL CUCHARON...8920
AJUSTE DEL MONITOR PRINCIPAL (MODULO DEL VELOCIMETRO)...8922
AJUSTE DE LOS POTENCIÓMETROS DE LOS ANGULOS DEL BRAZO Y DEL CUCHARON...8923
LOCALIZACIÓN DE FALLAS Y AVERÍAS...8924
SECUENCIA DE EVENTOS EN LA LOCALIZACIÓN DE FALLAS Y AVERIAS...8926
PRECAUCIONES AL REALIZAR EL MANTENIMIENTO...8927
MANIPULACIÓN DE CONECTORES...8934
COMPROBACIONES ANTES DE LOCALIZAR FALLAS Y AVERÍAS...8935
MÉTODO PARA EL USO DE LAS TABLAS DE LOCALIZACIÓN DE FALLAS Y AVERIAS...8937
TIPOS DE CONECTORES Y UBICACIONES DE MONTAJE...8945
DIAGRAMA (1/3) DEL UBICACIÓN DE LAS CLAVIJAS DE CONEXIÓN...8946
TABLA DE CONEXIONES SEGÚN LOS NUMEROS DE LAS ESPIGAS DE LOS CONECTORES...8951
LOCALIZACIÓN DE FALLAS Y AVERÍAS EN EL SISTEMA DEL MOTOR (MODO S)...8958
LOCALIZACIÓN DE FALLAS Y AVERÍAS EN EL SISTEMA MONITOR PRINCIPAL (MODO M)...8977
LOCALIZACIÓN DE FALLAS Y A. MONITOR MANT. (MODO K)...9010
LOCALIZACIÓN DE FALLAS Y AVERÍAS EN EL SIST. ELECTRICO (MODO E)...9030
LOCALIZACIÓN DE FALLAS Y AVERIAS DEL SISTEMA HIDRAULICO Y MECANICO (RELACIONADAS CON EL CHASIS) (MODO T)...9072
TREN DE POTENCIA...9073
SISTEMA DE LA DIRECCIÓN...9080
SISTEMA DE FRENOS...9083
EQUIPO DE TRABAJO...9086
LOCALIZACIÓN DE FALLAS Y AVERÍAS DEL ECSS (MODO D)...9095
LOCALIZACION DE FALLAS Y AVERIAS DEL SISTEMA CONTROLADOR DEL EQUIPO DE TRABAJO (MODO W)...9108
SEBM006104 - Wheel Loader WA380-3 Loader avance Shop Manual...9141
CONTENTS...9142
01 GENERAL...9164
GENERAL ASSEMBLY DRAWING ...9165
SPECIFICATIONS ...9167
WEIGHT TABLE ...9170
LIST OF LUBRICANT AND WATER ...9172
10 STRUCTURE AND FUNCTION ...9174
POWER TRAIN ...9175
POWER TRAIN SYSTEM ...9176
TORQUE CONVERTER, TRANSMISSION PIPING ...9178
TRANSMISSION HYDRAULIC SYSTEM DIAGRAM ...9179
TRANSMISSION HYDRAULIC CIRCUIT DIAGRAM ...9180
TORQUE CONVERTER ...9181
TORQUE CONVERTER OIL FILTER ...9183
TRANSMISSION ...9184
TRANSMISSION CONTROL VALVE ...9194
DRIVE SHAFT ...9216
AXLE...9217
DIFFERENTIAL ...9219
FINAL DRIVE ...9223
AXLE MOUNT, CENTER HINGE PIN ...9224
STEERING PIPING ...9226
STEERING COLUMN ...9227
STEERING VALVE ...9228
ORBIT-ROLL VALVE ...9242
STOP VALVE ...9246
EMERGENCY STEERING PUMP ...9247
DIVERTER VALVE ...9248
BREAK PIPING...9251
BRAKE HYDRAULIC CIRCUIT DIAGRAM ...9252
BRAKE VALVE ...9253
ACCUMULATOR CHARGE VALVE...9258
ACCUMULATOR (FOR BRAKE) ...9264
BRAKE...9266
PARKING BRAKE CONTROL ...9268
PARKING BRAKE ...9269
PARKING BRAKE SOLENOID VALVE ...9270
PARKING BRAKE VALVE ...9271
PARKING BRAKE EMERGENCY RELEASE SOLENOID VALVE ...9272
HYDRAULIC PIPING...9273
WORK EQUIPMENT HYDRAULIC SYSTEM DIAGRAM...9274
WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM...9275
WORK EQUIPMENT LEVER LINKAGE ...9279
HYDRAULIC TANK ...9280
PPC VALVE ...9282
PPC RELIEF VALVE...9287
ACCUMULATOR (FOR PPC VALVE) ...9288
MAIN CONTROL VALVE ...9289
WORK EQUIPMENT LINKAGE ...9304
BUCKET ...9306
BUCKET POSITIONER AND BOOM KICK-OUT ...9307
CAB...9313
ROPS CAB ...9315
AIR CONDITIONER ...9316
ELECTRIC CIRCUIT DIAGRAM ...9327
MACHINE MONITOR SYSTEM ...9328
MAIN MONITOR ...9329
MAINTENANCE MONITOR ...9334
WORK EQUIPMENT CONTROL SYSTEM ...9337
E.C.S.S. (Electronically Controlled Suspension System) ...9344
SENSORS ...9348
ENGINE STARTING CIRCUIT ...9352
ENGINE STOP CIRCUIT ...9353
PREHEATING CIRCUIT...9354
ELECTRIC TRANSMISSION CONTROL ...9355
KICK-DOWN SWITCH ...9358
KICK-DOWN ELECTRIC CIRCUIT DIAGRAM ...9359
TRANSMISSION CUT-OFF SWITCH ...9364
TRANSMISSION CUT-OFF FUNCTION ...9365
ELECTRIC PARKING BRAKE CONTROL ...9367
20 TESTING AND ADJUSTING ...9379
STANDARD VALUE TABLE FOR ENGINE ...9380
STANDARD VALUE TABLE FOR CHASSIS ...9381
STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM ...9385
TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING ...9389
ADJUSTING VALVE CLEARANCE ...9390
MEASURING COMPRESSION PRESSURE ...9391
MEASURING BLOW-BY PRESSURE ...9392
TESTING AND ADJUSTING FUEL INJECTION TIMING ...9393
MEASURING EXHAUST COLOR ...9395
MEASURING INTAKE AIR PRESSURE (BOOST PRESSURE) ...9396
MEASURING EXHAUST GAS TEMPERATURE ...9397
MEASURING ENGINE OIL PRESSURE ...9398
MEASURING ENGINE SPEED ...9399
TESTING AND ADJUSTING FAN BELT TENSION ...9400
METHOD FOR ADJUSTING ENGINE STOP MOTOR CABLE ...9401
MEASURING ACCELERATOR PEDAL ...9403
MEASURING OPERATING FORCE, TRAVEL OF SPEED LEVER ...9405
MEASURING STALL SPEED ...9406
MEASURING TORQUE CONVERTER, TRANSMISSION, PARKING BRAKE OIL PRESSURE ...9408
METHOD OF OPERATING EMERGENCY MANUALSPOOL ...9410
MEASURING CLEARANCE BETWEEN TIRE AND WHEEL ...9412
TESTING AND ADJUSTING STEERING WHEEL ...9413
TESTING AND ADJUSTING STEERING CONTROL ...9416
MEASURING STEERING OIL PRESSURE ...9417
MEASURING OPERATING FORCE, TRAVEL OF BRAKE PEDAL ...9419
MEASURING BRAKE PERFORMANCE ...9420
TESTING BRAKE OIL PRESSURE ...9421
TESTING FOR BRAKE DISC WEAR ...9422
BLEEDING AIR FROM BRAKE SYSTEM ...9423
MEASURING PARKING BRAKE PERFORMANCE ...9424
MANUAL RELEASE METHOD FOR PARKING BRAKE ...9425
TESTING WEAR OF PARKING BRAKE DISC ...9426
MEASURING WORK EQUIPMENT CONTROL LEVER ...9427
MEASURING WORK EQUIPMENT HYDRAULIC PRESSURE ...9429
MEASURING PPC VALVE PRESSURE ...9431
MEASURING WORK EQUIPMENT ...9433
TESTING AND ADJUSTING BUCKET POSITIONER ...9435
TESTING AND ADJUSTING BOOM KICK-OUT ...9436
ADJUSTING MAIN MONITOR (SPEEDOMETER MODULE) ...9438
ADJUSTING BOOM, BUCKET ANGLE POTENTIOMETER ...9439
TROUBLESHOOTING...9440
POINTS TO REMEMBER WHEN TROUBLESHOOTING ...9441
SEQUENCE OF EVENTS IN TROUBLESHOOTING ...9442
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE ...9443
HANDLING CONNECTORS ...9450
CHECKS BEFORE TROUBLESHOOTING ...9451
METHOD OF USING TROUBLESHOOTING CHARTS ...9452
CONNECTOR TYPES AND MOUNTING LOCATIONS...9460
CONNECTOR PIN ARRANGEMENT DIAGRAM...9461
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS ...9466
TROUBLESHOOTING OF ENGINE SYSTEM (S MODE) ...9473
S-1 Starting performance is poor (Starting always takes time) ...9474
S-2 Engine does not start ...9475
(1) Engine does not turn...9475
(2) Engine turns but no exhaust gas comes out (Fuel is not being injected)...9476
(3) Exhaust gas comes out but engine does not start (Fuel is being injected)...9477
S-3 Engine does not pick up smoothly (Follow-up is poor) ...9478
S-4 Engine stops during operations ...9479
S-5 Engine does not rotate smoothly (hunting) ...9480
S-6 Engine lacks output (no power) ...9481
S-7 Exhaust gas is black (incomplete combustion) ...9482
S-8 Oil consumption is excessive (or exhaust gas is blue) ...9483
S-9 Oil becomes contaminated quickly ...9484
S-10 Fuel consumption is excessive ...9485
S-11 Oil is in cooling water, or water spurts back, or water level goes down...9486
S-12 Oil pressure lamp lights up (drop in oil pressure) ...9487
S-13 Oil level rises ...9488
S-14 Water temperature becomes too high (overheating) ...9489
S-15 Abnormal noise is made...9490
S-16 Vibration is excessive...9491
TROUBLESHOOTING OF MAIN MONITOR SYSTEM (M MODE) ...9492
TROUBLE DATA DISPLAY ...9494
M-1 Main monitor does not work...9496
M-2 When starting switch is turned ON and engine is started immediately, all lamps stay lighted up ...9497
M-3 Speedometer display does not work properly ...9498
M-4 Abnormality in shift indicator ...9499
(a) Stays at N even when directional lever is at F...9499
(b) Stays at N even when directional lever is at R...9499
(c) Does not display N even when directional lever is at N and displays R when directional lever is at F...9499
(d) Does not display N even when directional lever is at N and displays F when directional lever is at R...9500
(e) Does not display lst, 4th...9500
(f) Does not display 3rd, 4th...9500
(g) Does not display 2nd, 3rd...9501
(h) Does not display 1st, 2nd...9501
M-5 High beam does not light up ...9502
M-6 Turn signal display does not light up ...9503
(a) L.H. turn signal does not light up...9503
(b) R.H. turn signal does not light up...9503
M-7 Abnormality in parking display ...9504
(a) Parking lamp does not light up...9504
(b) Parking lamp stays lighted up...9504
M-8 Abnormality in preheating system (QGS) ...9505
(a) Does not carry out preheating...9505
(b) Always carries out preheating for 1 minute...9506
(c) Preheating stays on...9506
(d) Preheating time becomes shorter, or there is variation...9507
M-9 Night lighting does not light up ...9508
M-10 Abnormality in front working lamp ...9509
(a) Neither monitor display nor front working lamp light up...9509
(b) Working lamp lights up but monitor display does not light up...9509
(c) Monitor lights up but working lamp does not light up...9509
M-11 Abnormality in rear working lamp...9510
(a) Neither monitor display nor rear working lamp light up...9510
(b) Working lamp lights up but monitor display does not light up...9510
(c) Monitor lights up but working lamp does not light up...9510
M-12 Abnormality in transmission cut-off...9512
(a) When monitor switch is pressed, cut-off function is not switched and display is not given...9512
(b) Monitor display goes out but cut-off function stays on...9512
(c) Monitor display lights up but cut-off function is not actuated...9513
M-13 Abnormality in parking brake dragging warning...9514
(a) When parking brake is applied, buzzer sounds (intermittently) even when directional lever is at N, and caution lamp flashes...9514
(b) When parking brake is applied, buzzer does not sound and caution lamp does not light up even when directional lever is at po...9514
M-14 When parking brake dragging warning is given, buzzer and caution lamp are actuated continuously, or they are not actuated...9515
(a) Actuated continuously...9515
(b) Not actuated...9515
M-15 Abnormality in buzzer...9516
(a) Buzzer does not sound when starting switch is turned ON (during self-check)...9516
(b) Buzzer always sounds...9516
M-16 Condition of monitor switches is not stored in memory...9517
M-17 Abnormality in failure display mode...9518
(a) Does not enter failure display mode...9518
(b) Time for time elapsed since failure on failure display mode does not advance...9518
M-18 Abnormality in emergency steering normal display...9519
(a) Emergency steering normal display does not light up...9519
(b) Emergency steering normal display stays lighted up...9519
M-19 Abnormality in emergency steering actuation display...9520
(a) Emergency steering actuation display does not light up...9520
(b) Emergency steering actuation display stays lighted up...9520
M-20 Abnormality in auto-greasing system...9521
(a) Forced greasing cannot be carried out...9521
(b) Monitor display flashes rapidly (2 times/sec)...9521
(c) When no more grease remains, monitor display flashes rapidly (2 times/sec)...9521
(d) Monitor display flashes slowly (1 time/sec)...9522
(e) Monitor display goes out...9522
M-21 Abnormality in ECSS system...9523
(a) Display does not change when switch is pressed...9523
(b) Monitor display lights up but ECSS function does not work...9523
M-22 Buzzer does not sound when auto-leveling switch is actuated...9523
M-23 Failure code is not sent to main monitor (abnormality in network)...9524
TROUBLESHOOTING OF MAINTENANCE MONITOR SYSTEM (K MODE) ...9525
K-1 When starting switch is turned ON, all lamps on maintenance monitor do not light up for 3 sec., maintenance monitor does not...9526
(a) All lamps on maintenance monitor do not light up for 3 seconds...9526
(b) Some lamps do not light up...9527
K-2 When starting switch is turned ON, all lamps on maintenance monitor light up but do not go out ...9527
K-3 When engine is started immediately after starting switch is turned ON (within 3 seconds), all lamps on maintenance monitor do not go out ...9528
K-4 When starting switch is turned ON (engine stopped), CHECK items flash ...9529
(a) Engine oil level display flashes...9529
(b) Engine water level display flashes...9530
K-5 When starting switch is turned ON (engine started), CAUTION items flash ...9531
(a) Engine oil pressure display flashes...9531
(b) Battery charge level display flashes...9532
(c) Brake oil pressure display flashes...9533
(d) Air cleaner display flashes...9534
K-6 CAUTION items are flashing but alarm buzzer does not sound ...9535
K-7 There is no abnormality in monitor display but alarm buzzer sounds ...9536
K-8 CAUTION items are flashing but warning lamp (CHECK lamp, CAUTION lamp) does not light up ...9537
(a) CHECK lamp...9537
(b) CAUTION lamp...9537
K-9 There is no abnormality in maintenance monitor display but warning lamp (CHECK lamp, CAUTION lamp) lights up ...9538
(a) CHECK lamp...9538
(b) CAUTION lamp...9538
K-10 Night lighting does not light up when lamp switch is turned ON (only lighting of maintenance monitor does not light up) ...9539
K-11 Night lighting lights up even when lamp switch is OFF, night lighting stays lighted up ...9540
K-12 Service meter does not work ...9541
K-13 Service meter is running even when engine is stopped...9541
K-14 Abnormality in gauge items ...9542
(a) Abnormality in fuel gauge...9542
(b) Abnormality in engine water temperature gauge...9543
(c) Abnormality in torque converter oil temperature gauge...9544
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE) ...9545
E-1 Engine does not start ...9546
(a) Starting motor does not turn...9546
(b) Starting motor turns...9550
E-2 Engine does not stop ...9552
E-3 Engine stops when machine is traveling ...9552
E-4 Parking brake does not work ...9553
(a) Parking brake has no effect when parking brake switch is turned ON (parking)...9553
(b) Parking brake has no effect when brake pressure drops (Does not work as emergency brake)...9553
E-5 Parking brake is applied when machine is traveling ...9554
E-6 Parking brake is released when starting switch is turned ON ...9556
E-7 Transmission does when parking brake is applied (but parking brake works normally) ...9556
E-8 Transmission does not work normally ...9557
(a) Problem in common circuit for transmission (always stays in 2nd)...9559
(b) Problem in H-L circuit...9559
(c) Problem in speed circuit...9560
(d) Problem in 4th circuit (does not enter 4th)...9560
(e) Contact in H-L circuit...9561
(f) Contact in speed circuit...9563
(g) Contact in 4th circuit (always stays in 4th)...9565
(h) Problem in FORWARD circuit (REVERSE is normal)...9566
(i) Problem in REVERSE circuit (FORWARD is normal)...9568
(j) Problem in common circuit for FORWARD and REVERSE (does not travel forward, parking brake is normal)...9570
(k) Contact in FORWARD circuit...9572
(I) Contact in REVERSE circuit...9574
(m) Problem in common circuit for FORWARD and REVERSE...9576
E-9 Kick-down switch does not work (the regular F1 to F4 shifts normally)...9577
E-10 Kick-down works only when kick-down switch is ON (Kick-down switch relay does not hold in position (self-holding function) ...9579
E-11 Kick-down operation cannot be canceled ...9579
(a) Not canceled even when directional lever is moved from F to N or R...9579
(b) Not canceled even when speed lever is moved from 2nd to other position (becomes 4th)...9580
E-12 Kick-down switch is actuated by mistake when traveling in 2nd ...9582
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (CHASSIS RELATED) (T MODE) ...9583
POWER TRAIN ...9584
T-1 Machine does not start ...9584
T-2 Travel speed is slow, thrusting power is weak, lacks power on slopes ...9586
T-3 Excessive shock when starting machine or shifting gear ...9588
T-4 Excessive time lag when starting machine or shifting gear ...9589
T-5 Torque converter oil temperature is high ...9590
STEERING SYSTEM ...9591
T-6 Steering does not turn ...9591
T-7 Steering wheel is heavy ...9592
T-8 Steering wheel wobbles or there is excessive shock ...9593
T-9 Machine steers to one side when traveling ...9593
T-10 Turning radius to left and right is different ...9593
BRAKE SYSTEM ...9594
T-11 Brakes do not work or braking effect is poor ...9594
T-12 Brakes are not released or brakes drag ...9595
T-13 Parking brake is not released or brake drags ...9596
WORK EQUIPMENT ...9597
T-14 Boom does not rise ...9597
T-15 Boom movement is slow or boom lacks lifting power ...9598
T-16 When boom is raised, it moves slowly at a certain height ...9599
T-17 Bucket cannot be pushed with cylinder (bucket floats) ...9599
T-18 Excessive hydraulic drift of boom ...9599
T-19 Boom shakes during operation ...9599
T-20 Boom drops momentarily when control lever is operated from HOLD to RAISE ...9600
T-21 Bucket does not tilt back ...9601
T-22 Bucket movement is slow or tilt-back lacks power ...9602
T-23 Bucket movement becomes slow during tilt-back operation ...9603
T-24 Bucket cannot be pushed with bucket cylinder ...9603
T-25 Excessive hydraulic drift of bucket ...9603
T-26 Bucket shakes during loading operation (Main control valve at HOLD) ...9604
T-27 Bucket dumps momentarily when control lever is operated from HOLD to TILT ...9604
T-28 Boom, bucket control levers are heavy or do not move smoothly ...9605
TROUBLESHOOTING OF ECSS (ELECTRONICALLY CONTROLLED SUSPENSION SYSTEM) (D MODE) ...9606
JUDGEMENT TABLE FOR CONTROLLER ELECTRICAL SYSTEM ...9607
D-1 ECSS does not work ...9608
(a) Error code [d0] is displayed...9609
(b) Error code [d1] is displayed...9609
(c) Error code [d2] is displayed...9610
(d) Error code [d3] is displayed...9610
(e) Error code [d4] is displayed...9611
(f) No abnormality display is given...9611
D-2 ECSS cannot be canceled ...9615
D-3 Output is turned ON (travel speed does not become 5 km/h) (deviates around 5 km/h) ...9616
D-4 Output is turned ON when transmission...9616
D-5 Output is turned ON when transmission is in 4th ...9617
D-6 Controller LED code is not displayed ...9618
D-7 ECSS is abnormal but main monitor does not give abnormality display ...9618
TROUBLESHOOTING OF WORK EQUIPMENT CONTROLLER SYSTEM (W MODE) ...9619
OUTLINE ...9621
1. Function...9621
2. When carrying out troubleshooting...9621
3. Failure code table...9621
4. Table of troubleshooting modes and causes...9622
W-1 Failure code [40] Abnormality in bucket dump solenoid system ...9624
W-2 Failure code [41] Short circuit in power source when bucket DUMP, TILT solenoids are OFF ...9625
W-3 Failure code [42] Abnormality in bucket tilt solenoid system ...9626
W-4 Failure code [43] Abnormality in damping solenoid system ...9627
W-5 Failure code [44]Short circuit in power source at hot end of damping solenoid ...9628
W-6 Failure code [45]Short circuit in power source at return end of damping solenoid ...9628
W-7 Failure code [48] Abnormality in bucket lever kick-out relay system ...9629
W-8 Failure code [49] Abnormality in boom lever kick-out relay system ...9631
W-9 Failure code [50] Abnormality in auto-leveler relay system ...9632
W-10 Failure code [51] Disconnection in boom RAISE, LOWER detection pressure switch ...9633
W-11 Failure code [52] Abnormality in boom angle potentiometer system ...9634
W-12 Failure code [53] Abnormality in bucket angle potentiometer system ...9634
W-13 Failure code [54] Abnormality in model selection wiring harness ...9636
W-14 Sensor cannot be adjusted ...9637
W-15 Does not carry out auto-leveling ...9638
(a) Auto-leveler switch system...9638
(b) Auto-leveler LED system...9638
(c) Bucket lever neutral switch system...9639
(d) Engine speed signal system...9640
W-16 Auto-leveler cannot be set ...9641
(a) Auto-leveler set switch system...9641
(b) Auto-leveler set LED system...9641
W-17 Remote positioner RAISE, LOWER LEDs do not light up ...9642
(a) Remote positioner switch system...9642
(b) Remote positioner LED system...9642
W-18 Remote positioner set LEDs do not flash ...9643
(a) Remote positioner switch system...9643
(b) Remote positioner LED system...9643
W-19 Bucket does not tilt immediately at boom FLOAT detent when remote positioner is at RAISE and auto mode is ON ...9644
W-20 Buzzer for switch operation does not sound ...9645
W-21 Bucket correction, boom stop response are slow ...9646
W-22 Bucket (lever) control ...9647
(a) Bucket kick-out does not work even when bucket is at maximum tilt...9647
(b) Lever is not held by detent...9648
W-23 Failure code is not displayed on main monitor ...9650
W-24 Maintenance monitor check ...9651
30 DISASSEMBLY AND ASSEMBLY...9652
METHOD OF USING MANUAL ...9654
PRECAUTIONS WHEN CARRYING OUT OPERATION ...9655
SPECIAL TOOL LIST ...9657
STARTING MOTOR ...9659
REMOVAL AND INSTALLATION...9659
ALTERNATOR ...9660
REMOVAL AND INSTALLATION...9660
ENGINE OIL COOLER ...9661
REMOVAL AND INSTALLATION...9661
FUEL INJECTION PUMP ...9662
REMOVAL...9662
INSTALLATION...9663
WATER PUMP ...9664
REMOVAL AND INSTALLATION...9664
TURBOCHARGER...9666
REMOVAL AND INSTALLATION...9666
NOZZLE HOLDER ...9667
REMOVAL AND INSTALLATION...9667
THERMOSTAT ...9668
REMOVAL AND INSTALLATION...9668
CYLINDER HEAD...9669
REMOVAL...9669
INSTALLATION...9674
RADIATOR...9676
REMOVAL...9676
INSTALLATION...9679
ENGINE...9680
REMOVAL...9680
INSTALLATION...9685
TORQUE CONVERTER CHARGING PUMP...9686
REMOVAL...9686
INSTALLATION...9687
TORQUE CONVERTER, TRANSMISSION...9688
REMOVAL...9688
INSTALLATION...9692
TORQUE CONVERTER...9693
DISASSEMBLY...9693
ASSEMBLY...9695
TRANSMISSION...9698
DISASSEMBLY...9698
ASSEMBLY...9708
TRANSMISSION CLUTCH PACK...9722
DISASSEMBLY...9722
ASSEMBLY...9728
TRANSMISSION CONTROL VALVE...9740
REMOVAL...9740
INSTALLATION...9742
DISASSEMBLY...9743
ASSEMBLY...9745
TRANSMISSION ACCUMULATOR VALVE...9748
DISASSEMBLY...9748
ASSEMBLY...9749
TRANSMISSION MODULATING VALVE...9750
DISASSEMBLY...9750
ASSEMBLY...9751
DRIVE SHAFT...9752
DISASSEMBLY...9752
ASSEMBLY...9755
FRONT AXLE...9757
REMOVAL...9757
INSTALLATION...9759
REAR AXLE...9760
REMOVAL...9760
INSTALLATION...9764
DIFFERENTIAL...9766
DISASSEMBLY...9766
ASSEMBLY...9771
AXLE HOUSING...9781
DISASSEMBLY...9781
ASSEMBLY...9788
CENTER HINGE PIN...9798
REMOVAL...9798
INSTALLATION...9802
STEERING VALVE...9805
REMOVAL...9805
INSTALLATION...9807
DISASSEMBLY...9808
ASSEMBLY...9812
ORBIT-ROLL VALVE...9815
REMOVAL...9815
INSTALLATION...9816
DISASSEMBLY...9817
ASSEMBLY...9820
STEERING CYLINDER...9825
REMOVAL...9825
INSTALLATION...9826
BRAKE VALVE...9827
REMOVAL...9827
INSTALLATION ...9828
RIGHT BRAKE VALVE (TANDEM) ...9829
DISASSEMBLY...9829
ASSEMBLY ...9830
LEFT BRAKE VALVE (SINGLE) ...9831
DISASSEMBLY...9831
ASSEMBLY ...9832
PARKING BRAKE DISC ...9833
REMOVAL...9833
INSTALLATION...9835
HYDRAULIC TANK...9836
REMOVAL...9836
INSTALLATION...9838
HYDRAULIC FILTER...9839
REMOVAL AND INSTALLATION...9839
HYDRAULIC, STEERING, SWITCH, PPC PUMP...9840
REMOVAL...9840
INSTALLATION...9843
MAIN CONTROL VALVE...9844
REMOVAL...9844
INSTALLATION ...9846
DISASSEMBLY...9847
ASSEMBLY...9849
PPC VALVE ...9852
REMOVAL...9852
INSTALLATION...9854
DISASSEMBLY...9855
ASSEMBLY ...9856
BUCKET CYLINDER...9857
REMOVAL...9857
INSTALLATION...9859
BOOM CYLINDER ...9860
REMOVAL...9860
INSTALLATION...9861
HYDRAULIC CYLINDER ...9862
DISASSEMBLY...9862
ASSEMBLY...9865
WORK EQUIPMENT...9868
REMOVAL...9868
INSTALLATION ...9871
COUNTERWEIGHT ...9873
REMOVAL AND INSTALLATION...9873
FUEL TANK ...9874
REMOVAL...9874
INSTALLATION ...9876
CAB, FLOOR FRAME...9877
REMOVAL...9877
INSTALLATION...9880
CAB...9881
REMOVAL...9881
INSTALLATION...9882
MAIN MONITOR...9883
REMOVAL...9883
INSTALLATION...9884
MAINTENANCE MONITOR...9885
REMOVAL AND INSTALLATION...9885
AIR CONDITIONER UNIT ...9886
REMOVAL...9886
INSTALLATION ...9891
AIR CONDITIONER CONDENSER...9892
REMOVAL...9892
INSTALLATION...9893
DRY RECEIVER...9894
REMOVAL AND INSTALLATION...9894
AIR CONDITIONER CONDENSER COMPRESSOR ...9895
REMOVAL AND INSTALLATION...9895
40 MAINTENANCE STANDARD ...9896
ENGINE MOUNT, TRANSMISSION MOUNT ...9897
TORQUE CONVERTER CHARGING PUMP ...9898
TORQUE CONVERTER ...9899
TRANSMISSION...9900
TRANSMISSION CONTROL VALVE ...9908
MODULATION VALVE ASSEMBLY ...9912
ACCUMULATOR VALVE ...9913
DRIVE SHAFT ...9914
DIFFERENTIAL ...9915
FINAL DRIVE ...9918
AXLE MOUNT ...9920
CENTER HINGE PIN ...9921
STEERING COLUMN ...9923
STEERING VALVE ...9924
STEERING CYLINDER MOUNT ...9925
BRAKE ...9926
BRAKE VALVE ...9927
PARKING BRAKE ...9930
HYDRAULIC PUMP...9931
MAIN CONTROL VALVE ...9932
PPC VALVE ...9936
HYDRAULIC CYLINDER ...9937
WORK EQUIPMENT LINKAGE ...9938
BUCKET ...9940
BUCKET POSITIONER AND BOOM KICK-OUT ...9941
SEBM024711 - Wheel Loader WA380-5 Shop Manual...9943
COVER...9943
CONTENTS...9944
01 GENERAL...9971
GENERAL ASSEMBLY DRAWING...9972
SPECIFICATIONS...9973
WEIGHT TABLE...9977
LIST OF LUBRICANT AND COOLANT...9979
10 STRUCTURE AND FUNCTION, MAINTENANCE STANDARD...9980
COOLING SYSTEM...9981
ENGINE MOUNT, TRANSMISSION MOUNT...9982
POWER TRAIN...9983
POWER TRAIN SYSTEM DIAGRAM...9984
DRIVE SHAFT (PROPELLER SHAFT)...9987
TORQUE CONVERTER, TRANSMISSION PIPING...9988
TORQUE CONVERTER...9989
TRANSMISSION...9997
TRANSMISSION CONTROL VALVE...10012
AXLE...10027
DIFFERENTIAL...10029
FINAL DRIVE...10038
AXLE MOUNTING,CENTER HINGE PIN...10041
STEERING PIPING...10045
STEERING COLUMN, ORBIT-ROLL...10046
STEERING VALVE...10047
ORBIT-ROLL VALVE...10062
STOP VALVE...10066
STEERING PUMP, SWITCH PUMP...10067
EMERGENCY STEERING PUMP (IF EQUIPPED)...10069
EMERGENCY STEERING MOTOR (IF EQUIPPED)...10070
STEERING CYLINDER...10071
JOYSTICK STEERING LEVER (IF EQUIPPED)...10073
STEERING LEVER (IF EQUIPPED)...10074
STEERING SWITCH VALVE (IF EQUIPPED)...10076
BRAKE PIPING...10077
BRAKE VALVE...10079
CHARGE VALVE...10086
ACCUMULATOR (FOR BRAKE)...10090
BRAKE...10092
PARKING BRAKE CONTROL...10097
PARKING BRAKE...10098
PARKING BRAKE SOLENOID VALVE...10100
PARKING BRAKE EMERGENCY RELEASE VALVE...10102
HYDRAULI PIPING...10103
WORK EQUIPMENT CONTROL LEVER...10106
HYDRAULIC TANK...10108
TORQUE CONVERTER CHARGING, WORK EQUIPMENT, AND PILOT CONTROL PUMPS...10110
PPC RELIEF VALVE...10112
E.C.S.S. VALVE (IF EQUIPPED)...10114
WORK EQUIPMENT CONTROL VALVE...10116
WORK EQUIPMENT PPC VALVE...10133
PPC VALVE (FOR MULTI FUNCTION MONO LEVER)...10139
EPC SOLENOID VALVE (IF EQUIPPED)...10145
SHUT OFF VALVE (IF EQUIPPED)...10148
ATTACHMENT PPC VALVE (IF EQUIPPED)...10149
COOLING FAN MOTOR...10153
COOLING FAN MOTOR DRIVE PUMP...10158
WORK EQUIPMENT LINKAGE...10166
BUCKET...10168
BUCKET POSITIONER, LIFT ARM KICK-OUT...10169
WORK EQUIPMENT CYLINDER...10175
CAB...10176
AIR CONDITIONER (IF EQUIPPED)...10177
MACHINE MONITORING SYSTEM...10178
MACHINE MONITOR...10185
TRANSMISSION CONTROL SYSTEM...10251
TRANSMISSION CONTROLLER...10279
WORK EQUIPMENT CONTROL SYSTEM (IF EQUIPPED)...10281
WORK EQUIPMENT CONTROLLER (IF EQUIPPED)...10296
ELECTRIC TRANSMISSION CONTROL...10298
KICK DOWN, HOLD SWITCH...10302
ENGINE STARTING CIRCUIT...10303
ENGINE STOP CIRCUIT...10305
PREHEATING CIRCUIT...10306
ENGINE POWER MODE SELECTOR CIRCUIT...10307
PARKING BRAKE CIRCUIT...10308
SENSORS...10312
20 TESTING AND ADJUSTING...10322
STANDARD VALUE TABLE FOR ENGINE...10323
STANDARD VALUE TABLE FOR CHASSIS...10324
TESTING AND ADJUSTING...10331
TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING...10332
MEASURING ENGINE SPEED...10333
MEASURING EXHAUST COLOR...10335
MEASURING EXHAUST TEMPERATURE...10336
ADJUSTING VALVE CLEARANCE...10337
MEASURING COMPRESSION PRESSURE...10339
MEASURING BLOW-BY PRESSURE...10340
MEASURING ENGINE OIL PRESSURE...10341
MEASURING INTAKE AIR PRESSURE (BOOST PRESSURE)...10342
TESTING AND ADJUSTING FUEL INJECTION TIMING...10343
ADJUSTING ENGINE SPEED SENSOR...10344
BLEEDING AIR FROM FUEL CIRCUIT...10345
ADJUSTING ENGINE STOP SOLENOID...10346
ADJUSTING ACCELERATOR PEDAL...10347
ADJUSTING TRANSMISSION SPEED SENSOR...10349
TESTING AND ADJUSTING POWER TRAIN OIL PRESSURE...10350
DRAWING OF SPECIAL TOOL...10354
PROCEDURE FOR FLUSHING TORQUE CONVERTER, TRANSMISSION HYDRAULIC CIRCUIT...10355
PROCEDURE FOR MOVING MACHINE WHEN TRANSMISSION VALVE FAILS...10356
TESTING AND ADJUSTING STEERING CONTROL...10358
TESTING AND ADJUSTING STEERING OIL PRESSURE...10359
TESTING HYDRAULIC FAN...10361
MEASURING BRAKE OIL PRESSURE...10362
TESTING WEAR OF WHEEL BRAKE DISC...10364
BLEEDING AIR FROM BRAKE CIRCUIT...10365
TESTING WEAR OF PARKING BRAKE DISC...10366
MANUAL RELEASE METHOD FOR PARKING BRAKE...10367
TESTING AND ADJUSTING ACCUMULATOR CHARGE PRESSURE...10368
TESTING AND ADJUSTING WORKING EQUIPMENT PPC OIL PRESSURE...10370
TESTING AND ADJUSTING WORK EQUIPMENT HYDRAULIC PRESSURE...10372
TESTING AND ADJUSTING BUCKET POSITIONER...10374
TESTING AND ADJUSTING LIFT ARM KICK-OUT...10375
CHECKING PROXIMITY SWITCH ACTUATION PILOT LAMP...10376
ADJUSTING MACHINE MONITOR...10377
TESTING AND ADJUSTING LOAD METER...10380
BLEEDING AIR ...10384
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT...10385
RELEASING REMAINING PRESSURE IN E.C.S.S. CIRCUIT...10385
PM CLINIC INSPECTION TABLE...10386
TROUBLESHOOTING...10388
POINTS TO REMEMBER WHEN TROUBLESHOOTING...10389
SEQUENCE OF EVENTS IN TROUBLESHOOTING...10390
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE...10391
CHECKS BEFORE TROUBLESHOOTING...10399
SPECIAL FUNCTIONS OF MACHINE MONITOR...10400
CATEGORIES, PROCEDURE, AND METHOD OF USING TROUBLESHOOTING CHARTS...10433
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS...10441
T-ADAPTER TABLE...10463
TROUBLESHOOTING OF TRANSMISSION CONTROL SYSTEM (TM MODE)...10466
CONNECTOR TYPES AND MOUNTING LOCATIONS...10469
CONNECTOR LAYOUT DRAWING...10477
TRANSMISSION CONTROL SYSTEM DIAGRAM...10483
ERROR CODE [1500L1] (DOUBLE ENGAGEMENT DETECTED) IS DISPLAYED...10486
ERROR CODE [15SAL1] (F_ECMV FILL SWITCH SYSTEM SHORT-CIRCUITED) IS DISPLAYED...10487
ERROR CODE [15SALH] (F_ECMV FILL SWITCH SYSTEM DISCONNECTED) IS DISPLAYED...10488
ERROR CODE [15SBL1] (R_ECMV FILL SWITCH SYSTEM SHORT-CIRCUITED) IS DISPLAYED...10489
ERROR CODE [15SBLH] (R_ECMV FILL SWITCH SYSTEM DISCONNECTED) IS DISPLAYED...10490
ERROR CODE [15SEL1] (1ST_ECMV FILL SWITCH SYSTEM SHORT-CIRCUITED) IS DISPLAYED...10491
ERROR CODE [15SELH] (1ST_ECMV FILL SWITCH SYSTEM DISCONNECTED) IS DISPLAYED...10492
ERROR CODE [15SFL1] (2ND_ECMV FILL SWITCH SYSTEM SHORT-CIRCUITED) IS DISPLAYED...10493
ERROR CODE [15SFLH] (2ND_ECMV FILL SWITCH SYSTEM DISCONNECTED) IS DISPLAYED...10494
ERROR CODE [15SGL1] (3RD_ECMV FILL SWITCH SYSTEM SHORT-CIRCUITED) IS DISPLAYED...10495
ERROR CODE [15SGLH] (3RD_ECMV FILL SWITCH SYSTEM DISCONNECTED) IS DISPLAYED...10496
ERROR CODE [15SHL1] (4TH_ECMV FILL SWITCH SYSTEM SHORT-CIRCUITED) IS DISPLAYED...10497
ERROR CODE [15SHLH] (4TH_ECMV FILL SWITCH SYSTEM DISCONNECTED) IS DISPLAYED...10498
ERROR CODE [15SJL1] (LOCKUP_ECMV FILL SWITCH SYSTEM SHORT-CIRCUITED) IS DISPLAYED...10499
ERROR CODE [15SJLH] (LOCKUP_ECMV FILL SWITCH SYSTEM DISCONNECTED) IS DISPLAYED...10500
ERROR CODE [989F00] (TRANSMISSION PROTECTION CAUTION) IS DISPLAYED...10501
ERROR CODE [B@C7NS] (REAR BRAKE COOLING OIL OVERHEAT) IS DISPLAYED...10502
ERROR CODE [D150KA] (EMERGENCY STEERING RELAY OUTPUT SYSTEM DISCONNECTED) IS DISPLAYED...10503
ERROR CODE [D150KB] (EMERGENCY STEERING RELAY OUTPUT SYSTEM GROUNDED) IS DISPLAYED...10504
ERROR CODE [D160KA] (BACKUP LAMP RELAY OUTPUT SYSTEM DISCONNECTED) IS DISPLAYED...10505
ERROR CODE [D160KB] (BACKUP LAMP RELAY OUTPUT SYSTEM GROUNDED) IS DISPLAYED...10506
ERROR CODE [D191KA] (NEUTRAL SAFETY RELAY OUTPUT SYSTEM DISCONNECTED) IS DISPLAYED...10507
ERROR CODE [D191KB] (NEUTRAL SAFETY RELAY OUTPUT SYSTEM GROUNDED) IS DISPLAYED...10509
ERROR CODE [D192KA] (E.C.S.S. R RELAY OUTPUT SYSTEM DISCONNECTED) IS DISPLAYED...10511
ERROR CODE [D192KB] (E.C.S.S. RELAY OUTPUT SYSTEM GROUNDED) IS DISPLAYED...10512
ERROR CODE [D198KB] (GROUND FAULT IN THE LOW TEMPERATURE BYPASS RELAY SYSTEM) IS DISPLAYED...10513
ERROR CODE [D198KY] (HOT-SHORT IN THE LOW-TEMPERATURE BYPASS RELAY SYSTEM) IS DISPLAYED...10514
ERROR CODE [DAQ0KK] (CONTROLLER POWER SUPPLY VOLTAGE LOWERED) IS DISPLAYED...10515
ERROR CODE [DAQ2KK] (DEFECTIVE SOLENOID POWER SUPPLY SYSTEM) IS DISPLAYED...10516
ERROR CODE [DAQ9KQ] (MODEL SELECTION SIGNAL MISMATCH) IS DISPLAYED...10517
ERROR CODE [DDK3KA] (RIGHT FNR SWITCH SIGNAL NOT INPUT) IS DISPLAYED...10518
ERROR CODE [DDK3KB] (MULTIPLE RIGHT FNR SWITCH SIGNAL INPUT) IS DISPLAYED...10520
ERROR CODE [DDK4KA] (JOYSTICK FORWARD/REVERSE SWITCH SIGNAL IS NOT INPUT) IS DISPLAYED...10522
ERROR CODE [DDK4KB] (MULTIPLE JOYSTICK FORWARD/REVERSE SWITCH SIGNALS ARE INPUT) IS DISPLAYED...10524
ERROR CODE [DDK5LD] (SHORT CIRCUIT WITH POWER SOURCE IN JOYSTICK SHIFT_UP/SHIFT_DOWN SWITCH) IS DISPLAYED...10526
ERROR CODE [DDK6KA] (FORWARD-REVERSE LEVER SIGNAL NOT INPUT) IS DISPLAYED...10527
ERROR CODE [DDK6KB] (MULTIPLE FORWARD-REVERSE LEVER SIGNAL INPUT) IS DISPLAYED...10529
ERROR CODE [DDS5KA] (STEERING PRESSURE SWITCH DISCONNECTED) IS DISPLAYED...10531
ERROR CODE [DDS5KB] (STEERING PRESSURE SWITCH GROUNDED) IS DISPLAYED...10532
ERROR CODE [DDT0L4] (MANUAL/AUTO-SHIFT SELECTOR SWITCH SELECTION FAILURE) IS DISPLAYED...10533
ERROR CODE [DDT4LD] (GROUND FAULT OF TRANSMISSION CUT-OFF SETTING SWITCH) IS DISPLAYED...10535
ERROR CODE [DDW9LD] (GROUND FAULT OF KICKDOWN SWITCH SYSTEM) IS DISPLAYED...10536
ERROR CODE [DDWLLD] (GROUND FAULT OF HOLD SWITCH SYSTEM) IS DISPLAYED...10538
ERROR CODE [DF10KA] (NO INPUT OF GEAR SHIFT LEVER SIGNAL) IS DISPLAYED...10540
ERROR CODE [DF10KB] (INPUT OF MULTIPLE GEAR SHIFT LEVER SIGNALS) IS DISPLAYED...10542
ERROR CODE [DGF1KX] (TRANSMISSION OIL TEMPERATURE SENSOR SYSTEM FAILURE) IS DISPLAYED...10544
ERROR CODE [DGR2KA] (REAR BRAKE OIL TEMPERATURE SENSOR SYSTEM DISCONNECTION) IS DISPLAYED...10545
ERROR CODE [DGR2KB] (GROUND FAULT OF REAR BRAKE OIL TEMPERATURE SENSOR SYSTEM) IS DISPLAYED...10546
ERROR CODE [DHT1KX] (TRANSMISSION CUT-OFF (LEFT BRAKE PRESSURE SENSOR) SIGNAL DISCONTINUITY) IS DISPLAYED...10547
ERROR CODE [DLE2KA] (ENGINE REVOLUTION SENSOR SYSTEM DISCONTINUITY) IS DISPLAYED...10548
ERROR CODE [DLE2LC] (ENGINE REVOLUTION SENSOR FAILURE) IS DISPLAYED...10549
ERROR CODE [DLT3KA] (SPEED SENSOR (TRANSMISSION OUTPUT SHAFT REVOLUTION) SYSTEM DISCONTINUITY) IS DISPLAYED...10550
ERROR CODE [DT20KB] (GROUND FAULT OF BUILT-IN INDICATOR LAMP SYSTEM OF TRANSMISSION CUT-OFF SWITCH) IS DISPLAYED...10551
ERROR CODE [DW7BKA] (FAN PUMP REVERSE SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...10552
ERROR CODE [DW7BKB] (FAN PUMP REVERSE SOLENOID SYSTEM SHORT-CIRCUITING) IS DISPLAYED...10553
ERROR CODE [DW7CKA] (SWITCH PUMP CUT-OFF RELAY DISCONTINUITY) IS DISPLAYED...10554
ERROR CODE [DW7CKB] (SWITCH PUMP CUT-OFF RELAY GROUND FAULT) IS DISPLAYED...10555
ERROR CODE [DX16KA] (FAN PUMP EPC SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...10556
ERROR CODE [DX16KB] (FAN PUMP EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...10557
ERROR CODE [DXH1KA] (LOCK-UP CLUTCH_ECMV SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...10558
ERROR CODE [DXH1KB] (LOCK-UP CLUTCH_ECMV SOLENOID SYSTEM SHORT-CIRCUITING) IS DISPLAYED...10559
ERROR CODE [DXH4KA] (1ST_ECMV SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...10560
ERROR CODE [DXH4KB] (1ST_ECMV SOLENOID SYSTEM SHORT-CIRCUITING) IS DISPLAYED...10561
ERROR CODE [DXH5KA] (2ND_ECMV SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...10562
ERROR CODE [DXH5KB] (2ND_ECMV SOLENOID SYSTEM SHORT-CIRCUITING) IS DISPLAYED...10563
ERROR CODE [DXH6KA] (3RD_ECMV SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...10564
ERROR CODE [DXH6KB] (3RD_ECMV SOLENOID SYSTEM SHORT-CIRCUITING) IS DISPLAYED...10565
ERROR CODE [DXH7KA] (R_ECMV SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...10566
ERROR CODE [DXH7KB] (R_ECMV SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...10567
ERROR CODE [DXH8KA] (F_ECMV SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...10568
ERROR CODE [DXH8KB] (F_ECMV SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...10569
ERROR CODE [DXHHKA] (4TH_ECMV SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...10570
ERROR CODE [DXHHKB] (4TH_ECMV SOLENOID SYSTEM SHORT-CIRCUITING) IS DISPLAYED...10571
ERROR CODE [DY30MA] (MOTOR-DRIVEN EMERGENCY STEERING PUMP FAILURE (MALFUNCTION IN MANUAL MODE))...10572
ERROR CODE [DY30MC] (MOTOR-DRIVEN EMERGENCY STEERING PUMP FAILURE (MALFUNCTION IN MANUAL MODE))...10574
TROUBLESHOOTING CODE [TM-1] DISCONTINUITY OR HOT SHORT-CIRCUITING OF KICKDOWN SWITCH SYSTEM...10576
TROUBLESHOOTING CODE [TM-2] HOLD SWITCH SYSTEM DISCONTINUITY OR HOT SHORT-CIRCUITING...10578
TROUBLESHOOTING CODE [TM-3] TORQUE CONVERTER LOCK-UP SWITCH SYSTEM FAILURE...10580
TROUBLESHOOTING CODE [TM-4] NEUTRALIZER SIGNAL (PARKING BRAKE SWITCH SIGNAL) SYSTEM FAILURE...10581
TROUBLESHOOTING CODE [TM-5] EMERGENCY STEERING SWITCH (MOTOR-DRIVEN EMERGENCY STEERING OPERATION SWITCH) SIGNAL SYSTEM FAILURE...10583
TROUBLESHOOTING CODE [TM-6] TRANSMISSION CUT-OFF SWITCH SYSTEM DISCONTINUITY OR GROUND FAULT...10585
TROUBLESHOOTING CODE [TM-7] TRANSMISSION CUT-OFF SETTING SWITCH SYSTEM DISCONTINUITY OR HOT SHORT-CIRCUITING...10586
TROUBLESHOOTING CODE [TM-8] TRANSMISSION CUT-OFF (LEFT BRAKE SENSOR) SIGNAL SHORT-CIRCUITING...10587
TROUBLESHOOTING CODE [TM-9a] JOYSTICK SHIFT_UP/SHIFT_DOWN SWITCH SYSTEM FAILURE (DISCONTINUITY OR GROUND FAULT)...10588
TROUBLESHOOTING CODE [TM-9b] JOYSTICK ON/OFF CHANGE OVER SWITCH SYSTEM FAILURE...10589
TROUBLESHOOTING CODE [TM-10] FNR SWITCH MODE CHANGE OVER SWITCH SYSTEM FAILURE...10591
TROUBLESHOOTING CODE [TM-11] STARTING SWITCH "C" (IGN_C) SIGNAL SYSTEM FAILURE...10592
TROUBLESHOOTING CODE [TM-12] ENGINE POWER MODE SWITCH DISCONTINUITY OR GROUND FAULT...10594
TROUBLESHOOTING CODE [TM-13] TRAVEL DAMPER ON/OFF SWITCH DISCONTINUITY OR GROUND FAULT...10595
TROUBLESHOOTING CODE [TM-14] HYDRAULIC FAN REVERSE SWITCH SIGNAL SYSTEM HOT SHORT-CIRCUITING OR DISCONTINUITY...10596
TROUBLESHOOTING CODE [TM-15] MOTOR-DRIVEN EMERGENCY STEERING RELAY OUTPUT SYSTEM HOT SHORT-CIRCUITING...10597
TROUBLESHOOTING CODE [TM-16] TRAVEL DAMPER RELAY OUTPUT SYSTEM HOT SHORT-CIRCUITING...10598
TROUBLESHOOTING CODE [TM-17] SWITCH PUMP CUT-OFF RELAY OUTPUT SYSTEM HOT SHORT-CIRCUITING...10599
TROUBLESHOOTING CODE [TM-18] BACK LAMP RELAY OUTPUT SYSTEM HOT SHORT-CIRCUITING...10600
TROUBLESHOOTING CODE [TM-19] NEUTRAL OUTPUT SYSTEM HOT SHORT-CIRCUITING...10601
TROUBLESHOOTING CODE [TM-20] FECMV SOLENOID SYSTEM HOT SHORT-CIRCUITING...10602
TROUBLESHOOTING CODE [TM-21] RECMV SOLENOID SYSTEM HOT SHORT-CIRCUITING...10603
TROUBLESHOOTING CODE [TM-22] 1ST ECMV SOLENOID SYSTEM HOT SHORT-CIRCUITING...10604
TROUBLESHOOTING CODE [TM-23] 2ND ECMV SOLENOID SYSTEM HOT SHORT-CIRCUITING...10605
TROUBLESHOOTING CODE [TM-24] 3RD ECMV SOLENOID SYSTEM HOT SHORT-CIRCUITING...10606
TROUBLESHOOTING CODE [TM-25] 4TH ECMV SOLENOID SYSTEM HOT SHORT-CIRCUITING...10607
TROUBLESHOOTING CODE [TM-26] LOCK-UP ECMV SOLENOID SYSTEM HOT SHORT-CIRCUITING...10608
TROUBLESHOOTING CODE [TM-27] FAN PUMP EPC SOLENOID SYSTEM HOT SHORT-CIRCUITING...10609
TROUBLESHOOTING CODE [TM-28] FAN REVERSE SOLENOID SYSTEM HOT SHORT-CIRCUITING...10610
TROUBLESHOOTING CODE [TM-29] SPEED SENSOR (TRANSMISSION OUTPUT SHAFT REVOLUTION) SYSTEM FAILURE...10611
TROUBLESHOOTING CODE [TM-30] E.C.S.S. SOLENOID SYSTEM DISCONTINUITY OR GROUND FAULT...10612
TROUBLESHOOTING OF WORK EQUIPMENT CONTROL SYSTEM (WRK MODE)...10613
CONNECTOR TYPES AND MOUNTING LOCATIONS...10616
CONNECTOR LAYOUT DRAWING...10624
WORK EQUIPMENT CONTROL SYSTEM DIAGRAM...10632
FAILURE CODE [D193KA] (DEFECTIVE JOYSTICK STEERING CUT RELAY SYSTEM (MAIN SYSTEM DISCONNECTED)) IS DISPLAYED...10635
FAILURE CODE [D193KB] (THE JOYSTICK SOLENOID CUT RELAY OUTPUT SYSTEM IS GROUNDED PROPERLY) IS DISPLAYED...10636
FAILURE CODE [DB90KK] (LOWERING WORK EQUIPMENT CONTROLLER POWER SUPPLY) IS DISPLAYED...10637
FAILURE CODE [DB92KK] (DEFECTIVE SOLENOID ELECTRIC POWER SUPPLY SYSTEM) IS DISPLAYED...10638
FAILURE CODE [DB95KX] (DEFECTIVE 5 V ELECTRIC POWER SUPPLY SYSTEM) IS DISPLAYED...10639
FAILURE CODE [DD1ALD] (DEFECTIVE REMOTE POSITIONER UP SET SWITCH (GROUND FAULT)) IS DISPLAYED...10641
FAILURE CODE [DD1BLD] (DEFECTIVE REMOTE POSITIONER DOWN SET SWITCH (GROUND FAULT)) IS DISPLAYED...10642
FAILURE CODE [DFA0KM] (DEFECTIVE NEUTRAL CAUTION FOR JOYSTICK WORK EQUIPMENT LEVER) IS DISPLAYED...10643
FAILURE CODE [DK59KA] (DEFECTIVE LIFT ARM EPC LEVER POTENTIOMETER SYSTEM (MAIN CIRCUIT DISCONTINUITY OR GROUND FAULT)) IS DISPLAYED...10644
FAILURE CODE [DK59KY] (DEFECTIVE LIFT ARM EPC LEVER POTENTIOMETER SYSTEM (MAIN SHORT CIRCUIT)) IS DISPLAYED...10645
FAILURE CODE [DK59L8] (DEFECTIVE LIFT ARM EPC POTENTIOMETER SYSTEM (DISPLACEMENT OF MAIN AND SUB-CIRCUIT)) IS DISPLAYED...10646
FAILURE CODE [DK5AKA] (DEFECTIVE LIFT ARM EPC LEVER POTENTIOMETER SYSTEM (DISCONNECTION OF MAIN) (DISCONNECTION,GROUND OF SUB)) IS DISPLAYED...10647
FAILURE CODE [DK5AKY] (DEFECTIVE LIFT ARM EPC LEVER POTENTIOMETER SYSTEM (SHORT SUB-CIRCUIT)) IS DISPLAYED...10648
FAILURE CODE [DK5BKA] (DEFECTIVE BUCKET EPC LEVER POTENTIOMETER SYSTEM (MAIN CIRCUIT DISCONTINUITY OR GROUND FAULT)) IS DISPLAYED...10649
FAILURE CODE [DK5BKY] (DEFECTIVE BUCKET EPC LEVER POTENTIOMETER SYSTEM (MAIN SHORTED)) IS DISPLAYED...10650
FAILURE CODE [DK5BL8] (DEFECTIVE INPUT SIGNAL FOR BUCKET EPC LEVER POTENTIOMETER SYSTEM (DISPLACEMENT OF MAIN AND SUB-CIRCUIT)) IS DISPLAYED...10651
FAILURE CODE [DK5CKA] (DEFECTIVE BUCKET EPC LEVER POTENTIOMETER SYSTEM (SUB-CIRCUIT DISCONTINUITY OR GROUND FAULT)) IS DISPLAYED...10652
FAILURE CODE [DK5CKY] (DEFECTIVE BUCKET EPC LEVER POTENTIOMETER SYSTEM (SHORT SUB-CIRCUIT)) IS DISPLAYED...10653
FAILURE CODE [DK5DKA] (DEFECTIVE 3RD VALVE LEVER POTENTIOMETER SYSTEM (MAIN CIRCUIT DISCONTINUITY OR GROUND FAULT)) IS DISPLAYED...10654
FAILURE CODE [DK5DKY] (DEFECTIVE 3RD VALVE LEVER POTENTIOMETER SYSTEM (MAIN CIRCUIT SHORT CIRCUIT)) IS DISPLAYED...10655
FAILURE CODE [DK5DL8] (DEFECTIVE 3RD VALVE EPC LEVER POTENTIOMETER SYSTEM INPUT SIGNAL (DISPLACEMENT OF MAIN AND SUB-CIRCUIT)) IS DISPLAYED...10656
FAILURE CODE [DK5EKA] (DEFECTIVE 3RD VALVE EPC LEVER POTENTIOMETER SYSTEM (SUB-CIRCUIT DISCONTINUITY OR GROUND FAULT)) IS DISPLAYED...10657
FAILURE CODE [DK5EKY] (DEFECTIVE 3RD VALVE EPC LEVER POTENTIOMETER SYSTEM (SHORT SUB-CIRCUIT)) IS DISPLAYED...10658
FAILURE CODE [DK5FKA] (DEFECTIVE JOYSTICK STEERING EPC LEVER POTENTIOMETER SYSTEM (MAIN CIRCUIT DISCONTINUITY OR GROUND FAULT)) IS DISPLAYED...10659
FAILURE CODE [DK5FKY] (DEFECTIVE JOYSTICK STEERING EPC LEVER POTENTIOMETER SYSTEM (MAIN CIRCUIT SHORTED)) IS DISPLAYED...10660
FAILURE CODE [DK5FKM] (JOYSTICK STEERING EPC LEVER NEUTRAL SYSTEM CAUTION) IS DISPLAYED...10661
FAILURE CODE [DK5FL8] (DEFECTIVE JOYSTICK STEERING EPC LEVER POTENTIOMETER SYSTEM INPUT SIGNAL (DEVIATION OF POSITIONAL SIGNALS OF MAIN AND SUB-CIRCUITS)) IS DISPLAYED...10662
FAILURE CODE [DG5GKA] (DEFECTIVE JOYSTICK STEERING EPC LEVER POTENTIOMETER SYSTEM (DISCONNECTION OR GROUND FAULT OF SUB-CIRCUIT)) IS DISPLAYED...10663
FAILURE CODE [DK5GKY] (DEFECTIVE JOYSTICK STEERING EPC LEVER POTENTIOMETER SYSTEM (SUB-CIRCUIT SHORT CIRCUIT)) IS DISPLAYED...10664
FAILURE CODE [DKA0KA] (DEFECTIVE LIFT ARM ANGLE SENSOR SYSTEM (DISCONNECTION OR GROUND FAULT)) IS DISPLAYED...10665
FAILURE CODE [DKA0KY] (DEFECTIVE LIFT ARM ANGLE SENSOR SYSTEM (SHORT CIRCUIT)) IS DISPLAYED...10666
FAILURE CODE [DLE2LC] (DEFECTIVE ENGINE SPEED SENSOR SYSTEM) IS DISPLAYED...10667
FAILURE CODE [DLT3LC] (DEFECTIVE TRANSMISSION OUTPUT AXIS SPEED SENSOR SYSTEM (DISCONNECTED)) IS DISPLAYED...10668
FAILURE CODE [DUM1KB] (REMOTE POSITIONER RAISE LAMP SYSTEM GROUND FAULT) IS DISPLAYED...10669
FAILURE CODE [DUM2KB] (REMOTE POSITIONER LOWER LAMP SYSTEM GROUND FAULT) IS DISPLAYED...10670
FAILURE CODE [DW4PKA] (DISCONNECTED LIFT ARM RAISE EPC SOLENOID SYSTEM) IS DISPLAYED...10671
FAILURE CODE [DW4PKB] (LIFT ARM RAISE EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...10672
FAILURE CODE [DW4QKA] (DISCONNECTED LIFT ARM LOWER EPC SOLENOID SYSTEM) IS DISPLAYED...10673
FAILURE CODE [DW4QKB] (LIFT ARM LOWER EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...10674
FAILURE CODE [DW4RKA] (DISCONNECTED BUCKET TILT EPC SOLENOID SYSTEM) IS DISPLAYED...10675
FAILURE CODE [DW4RKB] (BUCKET TILT EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...10676
FAILURE CODE [DW4SKA] (BUCKET DUMP EPC SOLENOID SYSTEM DISCONNECTION) IS DISPLAYED...10677
FAILURE CODE [DW4SKB] (BUCKET DUMP EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...10678
FAILURE CODE [DWM1KA] (WORK EQUIPMENT NEUTRAL LOCK SOLENOID SYSTEM DISCONNECTION) IS DISPLAYED...10679
FAILURE CODE [DWM1KB] (WORK EQUIPMENT NEUTRAL LOCK SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...10680
FAILURE CODE [DWN6KA] (LIFT ARM RAISE MAGNET DETENT SYSTEM DISCONNECTION) IS DISPLAYED...10681
FAILURE CODE [DWN6KB] (LIFT ARM RAISE MAGNET DETENT SYSTEM GROUND FAULT) IS DISPLAYED...10682
FAILURE CODE [DWN7KA] (LIFT ARM FLOATING MAGNET DETENT SYSTEM DISCONNECTION) IS DISPLAYED...10683
FAILURE CODE [DWN7KB] (LIFT ARM FLOATING MAGNET DETENT SYSTEM GROUND FAULT) IS DISPLAYED...10684
FAILURE CODE [DWN8KA] (BUCKET TILT MAGNET DETENT SYSTEM DISCONNECTION) IS DISPLAYED...10685
FAILURE CODE [DWN8KB] (BUCKET TILT MAGNET DETENT SYSTEM FAILURE (POWER SUPPLY SYSTEM GROUND FAULT)) IS DISPLAYED...10686
FAILURE CODE [DXHJKA] (3RD VALVE EXTENSION EPC SOLENOID SYSTEM DISCONNECTION) IS DISPLAYED...10687
FAILURE CODE [DXHJKB] (3RD VALVE EXTENSION EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...10688
FAILURE CODE [DXHKKA] (3RD VALVE RETRACTION EPC SOLENOID SYSTEM DISCONNECTION) IS DISPLAYED...10689
FAILURE CODE [DXHKKB] (3RD VALVE RETRACTION EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...10690
FAILURE CODE [DXHLKA] (JOYSTICK STEERING RIGHT-HAND EPC SOLENOID SYSTEM DISCONNECTION) IS DISPLAYED...10691
FAILURE CODE [DXHLKB] (JOYSTICK STEERING RIGHT-HAND EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...10692
FAILURE CODE [DXHMKA] (JOYSTICK STEERING LEFT-HAND EPC SOLENOID SYSTEM DISCONNECTION) IS DISPLAYED...10693
FAILURE CODE [DXHMKB] (JOYSTICK STEERING LEFT-HAND EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...10694
TROUBLESHOOTING CODE [WRK-1] DEFECTIVE LIFT ARM LOCK SWITCH SYSTEM...10695
TROUBLESHOOTING CODE [WRK-2] DEFECTIVE REMOTE POSITIONER RAISE SETTING SWITCH SYSTEM...10696
TROUBLESHOOTING CODE [WRK-3] DEFECTIVE REMOTE POSITIONER LOWER SETTING SWITCH SYSTEM...10697
TROUBLESHOOTING CODE [WRK-4] DEFECTIVE REMOTE POSITIONER RAISE SELECTION SWITCH SYSTEM...10699
TROUBLESHOOTING CODE [WRK-5] DEFECTIVE REMOTE POSITIONER LOWER ON/OFF SWITCH SYSTEM...10701
TROUBLESHOOTING CODE [WRK-6] DEFECTIVE BUCKET CYLINDER PROXIMITY SWITCH SYSTEM...10703
TROUBLESHOOTING CODE [WRK-7] DEFECTIVE BUCKET CYLINDER FULL STROKE DETECTION SWITCH SYSTEM...10705
TROUBLESHOOTING CODE [WRK-8] DEFECTIVE SEMI-AUTOMATIC DIGGING HARD SELECTION SWITCH SYSTEM...10706
TROUBLESHOOTING CODE [WRK-9] DEFECTIVE SEMI-AUTOMATIC DIGGING SOFT SELECTION SWITCH SYSTEM...10707
TROUBLESHOOTING CODE [WRK-10] DEFECTIVE JOYSTICK ON/OFF SWITCH SYSTEM...10708
TROUBLESHOOTING CODE [WRK-11] DEFECTIVE JOYSTICK STEERING SPEED HI/LO SWITCH SYSTEM...10710
TROUBLESHOOTING CODE [WRK-12] DEFECTIVE JOYSTICK SOLENOID CUT RELAY OUTPUT SYSTEM...10711
TROUBLESHOOTING CODE [WRK-13] HOT SHORT-CIRCUITED LIFT ARM RAISE MAGNET DETENT OUTPUT SYSTEM...10712
TROUBLESHOOTING CODE [WRK-14] HOT SHORT-CIRCUITED LIFT ARM FLOATING MAGNET DETENT OUTPUT SYSTEM...10713
TROUBLESHOOTING CODE [WRK-15] HOT SHORT-CIRCUITED BUCKET TILT MAGNET DETENT OUTPUT SYSTEM...10714
TROUBLESHOOTING CODE [WRK-16] HOT SHORT-CIRCUITED WORK EQUIPMENT NEUTRAL LOCK SOLENOID OUTPUT SYSTEM...10715
TROUBLESHOOTING CODE [WRK-17] HOT SHORT-CIRCUITED LIFT ARM RAISE EPC SOLENOID SYSTEM...10716
TROUBLESHOOTING CODE [WRK-18] HOT SHORT-CIRCUITED LIFT ARM LOWER EPC SOLENOID SYSTEM...10717
TROUBLESHOOTING CODE [WRK-19] HOT SHORT-CIRCUITED BUCKET TILT EPC SOLENOID SYSTEM...10718
TROUBLESHOOTING CODE [WRK-20] HOT SHORT-CIRCUITED BUCKET DUMP EPC SOLENOID SYSTEM...10719
TROUBLESHOOTING CODE [WRK-21] HOT SHORT-CIRCUITED 3 VALVES EXTENSION EPC SOLENOID SYSTEM...10720
TROUBLESHOOTING CODE [WRK-22] HOT SHORT-CIRCUITED 3 VALVES RETRACTION EPC SOLENOID SYSTEM...10721
TROUBLESHOOTING CODE [WRK-23] HOT SHORT-CIRCUITED JOYSTICK STEERING RIGHT EPC SOLENOID SYSTEM...10722
TROUBLESHOOTING CODE [WRK-24] HOT SHORT-CIRCUITED JOYSTICK STEERING LEFT EPC SOLENOID SYSTEM...10723
TROUBLESHOOTING CODE [WRK-25] DEFECTIVE BUCKET POSITIONER, LIFT ARM KICK-OUT AND FLOATING HOLDING FUNCTION...10724
TROUBLESHOOTING CODE [WRK-26] DEFECTIVE LIFT ARM KICK-OUT FUNCTION AND CANCELLATION...10726
TROUBLESHOOTING CODE [WRK-27] DEFECTIVE BUCKET LEVELER FUNCTION AND CANCELLATION...10728
TROUBLESHOOTING CODE [WRK-28] DEFECTIVE LIFT ARM FLOATING HOLDING AND CANCELLATION...10730
TROUBLESHOOTING OF MONITOR SYSTEM (MON MODE)...10731
CONNECTOR TYPES AND MOUNTING LOCATIONS...10733
CONNECTOR LAYOUT DRAWING...10741
MONITOR SYSTEM DIAGRAM...10747
FAILURE CODE [2F00MA] DRAGGING OF PARKING BRAKE...10751
FAILURE CODE [2G42ZG] ACCUMULATOR OIL PRESSURE (FRONT CIRCUIT) LOW...10753
FAILURE CODE [2G43ZG] ACCUMULATOR OIL PRESSURE (REAR BRAKE CIRCUIT) LOW...10754
FAILURE CODE [AA1ANX] AIR CLEANER 1 CLOGGED...10755
FAILURE CODE [AB00L6] DEFECTIVE BATTERY CHARGING CIRCUIT (ALTERNATOR TERMINAL R SIGNAL DETECTED WHEN ENGINE STOPPED...10757
FAILURE CODE [AB00MA] DEFECTIVE BATTERY CHARGING CIRCUIT (NO ALTERNATOR TERMINAL R SIGNAL DETECTED, DETECTION FAILURE)...10758
FAILURE CODE [B@BAZG] ENGINE OIL PRESSURE LOW...10759
FAILURE CODE [B@BAZK] ENGINE OIL LEVEL LOW...10760
FAILURE CODE [B@BCNS] ENGINE WATER TEMPERATURE OVERHEATING...10761
FAILURE CODE [B@BCZK] ALARM INDICATING LOW COOLANT LEVEL...10762
FAILURE CODE [B@HANS] HYDRAULIC OIL TEMPERATURE OVERHEATING...10763
FAILURE CODE [B@CENS] TORQUE CONVERTER OIL TEMPERATURE OVERHEATING...10764
FAILURE CODE [D182KZ] THE PREHEATER RELAY COIL IS DISCONNECTED OR SHIRT-CIRCUITED...10765
FAILURE CODE [D5ZHL6] STARTING SWITCH C (IGN"C") INPUT FAILURE...10767
FAILURE CODE [DA80L4] AUTO GREASE INPUT FAILURE...10768
FAILURE CODE [DAF3KK] SW POWER SUPPLY (FOR OPERATION) = ON AND NSW POWER SUPPLY (FOR MEMORY) IS OFF...10769
FAILURE CODE [DAF5KP] 5V POWER SUPPLY OUTPUT FAILURE...10771
FAILURE CODE [DAF6KP] 24V POWER SUPPLY OUTPUT FAILURE...10772
FAILURE CODE [DAFBKM] WRONG INFORMATION ON MODEL SELECTION...10774
FAILURE CODE [DAFSKQ] WRONG INFORMATION ON METER DISPLAY SELECTION...10775
FAILURE CODE [DAQSKR] S-NET COMMUNICATION FAILURE (BETWEEN MONITOR PANEL AND TRANSMISSION CONTROLLER) ...10776
FAILURE CODE [DBQSKR] S-NET COMMUNICATION FAILURE (BETWEEN MONITOR PANEL AND WORK EQUIPMENT CONTROLLER) ...10777
FAILURE CODE [DB9SKR] S-NET COMMUNICATION FAILURE (BETWEEN MONITOR PANEL AND WORK EQUIPMENT CONTROLLER) ...10778
FAILURE CODE [DD15LD] MONITOR PANEL MODE SELECTOR SWITCH 1 (PANEL SW1) INPUT ERROR...10779
FAILURE CODE [DD16LD] MONITOR PANEL MODE SELECTOR SWITCH 1 (PANEL SW2) INPUT ERROR...10780
FAILURE CODE [DD17LD] THE MONITOR PANEL MODE SELECTOR SWITCH 2 (PANEL SW3) INPUT CIRCUIT REMAINS CLOSED FOR MORE THAN ONE MINUTE...10781
FAILURE CODE [DD18LD] MONITOR PANEL MODE SELECTOR SWITCH 2 (PANEL SW4) INPUT ERROR...10782
FAILURE CODE [DD1CLD] SUB-TOTAL SWITCH FAILURE...10783
FAILURE CODE [DDS5L6] DECREASED STEERING OIL PRESSURE...10785
FAILURE CODE [DDY0LD] CANCEL SWITCH FAILURE...10787
FAILURE CODE [DGE2KX] ENGINE WATER TEMPERATURE SENSOR SYSTEM FAILURE...10789
FAILURE CODE [DGE3L6] ABNORMAL CONNECTION OF ENGINE WATER TEMPERATURE (LOW TEMPERATURE) SENSOR SYSTEM...10790
FAILURE CODE [DGH2KX] HYDRAULIC OIL TEMPERATURE SENSOR SYSTEM FAILURE...10791
FAILURE CODE [DGT1KX] TORQUE CONVERTER OIL TEMPERATURE SENSOR SYSTEM FAILURE...10792
FAILURE CODE [DHE4L6] ENGINE OIL PRESSURE SENSOR SYSTEM FAILURE...10793
FAILURE CODE [DHPCKX] BOTTOM PRESSURE SENSOR FAILURE...10794
FAILURE CODE [DHPDKX] HEAD PRESSURE SENSOR FAILURE...10796
FAILURE CODE [DKA0KX] LIFT ARM ANGLE SENSOR FAILURE...10798
FAILURE CODE [DV00KB] SHORT-CIRCUITED ALARM BUZZER OUTPUT SYSTEM...10799
FAILURE CODE [DY30ME] THE EMERGENCY STEERING REMAINS ACTUATED FOR MORE THAN ONE MINUTE...10800
TROUBLESHOOTING CODE [MON-1] THE PARKING BRAKE INDICATOR LAMP DOES NOT LIGHT UP WHEN THE PARKING BRAKE SWITCH IS TURNED ON (THE PARKING BRAKE INDICATOR SWITCH CIRCUIT SUFFERS A GROUND FAULT)...10802
TROUBLESHOOTING CODE [MON-2] THE BRAKE OIL PRESSURE CAUTION LAMP DOES NOT LIGHT UP WHEN THE EMERGENCY BRAKE IS APPLIED (FRONT CIRCUIT)...10804
TROUBLESHOOTING CODE [MON-3] THE BRAKE OIL PRESSURE CAUTION LAMP DOES NOT LIGHT UP WHEN THE EMERGENCY BRAKE IS APPLIED (REAR CIRCUIT)...10805
TROUBLESHOOTING CODE [MON-4] THE AIR CLEANER CLOGGING INDICATOR LAMP DOES NOT LIGHT ON...10806
TROUBLESHOOTING CODE [MON-5] THE ENGINE HYDRAULIC CAUTION LAMP DOES NOT LIGHT ON...10808
TROUBLESHOOTING CODE [MON-6] THE ENGINE OIL LEVEL CAUTION LAMP DOES NOT LIGHT ON...10809
TROUBLESHOOTING CODE [MON-7] THE ENGINE WATER TEMPERATURE CAUTION LAMP DOES NOT LIGHT ON...10810
TROUBLESHOOTING CODE [MON-8] THE RADIATOR WATER VOLUME CAUTION LAMP DOES NOT LIGHT ON...10811
TROUBLESHOOTING CODE [MON-9] THE HYDRAULIC OIL TEMPERATURE CAUTION LAMP DOES NOT LIGHT ON...10812
TROUBLESHOOTING CODE [MON-10] THE TORQUE CONVERTER OIL TEMPERATURE CAUTION LAMP DOES NOT LIGHT ON...10813
TROUBLESHOOTING CODE [MON-11] THE STEERING HYDRAULIC CAUTION LAMP DOES NOT LIGHT ON...10814
TROUBLESHOOTING CODE [MON-12] INPUT FAULT IN MONITOR PANEL MODE SWITCH 1 (PANEL SW1)...10815
TROUBLESHOOTING CODE [MON-13] INPUT FAULT IN MONITOR PANEL MODE SWITCH 1 (PANEL SW2)...10816
TROUBLESHOOTING CODE [MON-14] INPUT FAULT IN MONITOR PANEL MODE SWITCH 2 (PANEL SW3)...10817
TROUBLESHOOTING CODE [MON-15] INPUT FAULT IN MONITOR PANEL MODE SWITCH 2 (PANEL SW4)...10818
TROUBLESHOOTING CODE [MON-16] DEFECTIVE SUBTOTAL SWITCH...10819
TROUBLESHOOTING CODE [MON-17] DEFECTIVE CANCEL SWITCH...10820
TROUBLESHOOTING CODE [MON-18] DEFECTIVE BOTTOM PRESSURE SENSOR (HOT SHORT FAULT)...10821
TROUBLESHOOTING CODE [MON-19] DEFECTIVE HEAD SENSOR...10822
TROUBLESHOOTING CODE [MON-20] THE ALARM BUZZER DOES NOT SOUND OR STOP (DISCONNECTION OR SHORT CIRCUIT WITH CHASSIS GROUND IN BUZZER OUTPUT SYSTEM)...10823
TROUBLESHOOTING OF HYDRAULIC, MECHANICAL SYSTEM (H MODE)...10824
H-1 THE MACHINE DOES NOT START...10825
H-2 THE LOCK-UP CLUTCH IS NOT RELEASED (THE ENGINE STOPS) (WHEN THE LOCK-UP CLUTCH IS PROVIDED)...10827
H-3...10828
a. THE TRAVEL SPEED IS SLOW, THE THRUSTING FORCE IS WEAK, THE UPHILL TRAVELING POWER IS WEAK, AND THE GEAR IS NOT SHIFTED...10828
b. THE TORQUE CONVERTER LOCK-UP CLUTCH IS NOT LET IN (IF THE LOCK-UP CLUTCH IS EQUIPPED)...10830
H-4 SHOCKS ARE LARGE AT THE TIMES OF STARTING AND SHIFTING GEAR...10831
H-5 TIME LAG IS LARGE AT THE TIMES OF STARTING AND SHIFTING GEAR...10833
H-6 THE TORQUE CONVERTER OIL TEMPERATURE IS HIGH...10835
H-7 THE STEERING WHEEL DOES NOT TURN...10836
H-8 THE STEERING WHEEL IS HEAVY...10837
H-9 THE STEERING WHEEL FLUCTUATES OR IS STRONGLY SHOCKED ...10838
H-10 THE MACHINE STEERS TO ONE SIDE WHEN STAVELING...10838
H-11 THE RIGHT AND LEFT SWING RADII ARE DIFFERENT...10838
H-12 THE BRAKE DOES NOT WORK OR DOES NOT WORK WELL...10839
H-13 THE BRAKE IS NOT RELEASED OR IS DRAGGED...10840
H-14 THE BRAKE IS NOT RELEASED OR DRAGGED...10841
H-15 THE LIFT ARM DOES NOT RISE...10842
H-16 THE LIFT ARM MOVES SLOWLY OR THE LIFT ARM RISING FORCE IS INSUFFICIENT...10843
H-17 WHEN RISING,THE LIFT ARM COMES TO MOVE SLOWLY AT SPECIFIC HEIGHT...10844
H-18 THE LIFT ARM CYLINDER CANNOT HOLD DOWN THE BUCKET (THE BUCKET RISES IN THE AIR)...10844
H-19 HYDRAULIC DRIFTS OF THE BOOM OCCUR OFTEN...10844
H-20 THE LIFT ARM WOBBLES DURING OPERATION...10844
H-21 WHEN THE CONTROL LEVER IS SWITCHED FROM "HOLD" TO "RAISE", THE LIFT ARM FALLS TEMPORARILY...10845
H-22 THE BUCKET DOES NOT TILT BACK...10846
H-23 THE BUCKET MOVES SLOWLY OR THE TILTING-BACK FORCE IS INSUFFICIENT...10847
H-24 THE BUCKET COMES TO OPERATE SLOWLY IN HE MIDST OF TILTING-BACK...10848
H-25 THE BUCKET CYLINDER CANNOT HOLD DOWN THE BUCKET...10848
H-26 HYDRAULIC DRIFTS OF THE BUCKET OCCUR OFTEN...10848
H-27 THE BUCKET WOBBLES DURING TRAVEL CARGO (THE WORK EQUIPMENT VALVE IS SET TO "HOLD")...10849
H-28 WHEN THE CONTROL LEVER IS SWITCHED FROM "HOLD" TO "TILT", THE BUCKET FALLS TEMPORARILY...10849
H-29 THE CONTROL LEVERS OF LIFT ARM AND BUCKET DO NOT MOVE SMOOTHLY AND HEAVY...10850
H-30 E.C.S.S. DOES NOT WORK, AND THERE IS PITCING AND BOUNCING...10851
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)...10852
CONNECTOR TYPES AND MOUNTING LOCATIONS...10853
CONNECTOR LAYOUT DRAWING...10861
ELECTRICAL SYSTEM DIAGRAM...10867
TROUBLESHOOTING CODE [E-1-a] (THE ENGINE DOES NOT START. (STARTING SYSTEM))...10868
TROUBLESHOOTING CODE [E-1-b] (THE ENGINE DOES NOT START. (ENGINE STOP SOLENOID SYSTEM))...10872
TROUBLESHOOTING CODE [E-2] (THE ENGINE DOES NOT STOP)...10874
TROUBLESHOOTING CODE [E-3] (PREHEATING IS IMPOSSIBLE OR CONSTANT)...10876
TROUBLESHOOTING CODE [E-4] (THE ENGINE POWER MODES CANNOT BE SELECTED)...10878
TROUBLESHOOTING CODE [E-5] (THE FRONT WIPER DOES NOT FUNCTION)...10880
TROUBLESHOOTING CODE [E-6] (THE REAR WIPER DOES NOT FUNCTION)...10883
TROUBLESHOOTING CODE [E-7] (THE SIDE WIPER DOES NOT FUNCTION (IF EQUIPPED))...10884
TROUBLESHOOTING CODE [E-8] (THE WIND WASHER DOES NOT FUNCTION)...10885
TROUBLESHOOTING CODE [E-9] (THE HEADLAMP (LO BEAM) DOES NOT LIGHT ON)...10888
TROUBLESHOOTING CODE [E-10] (THE HEADLAMP (HI BEAM) DOES NOT FUNCTION)...10891
TROUBLESHOOTING CODE [E-11] (THE CLEARANCE LAMP DOES NOT LIGHT ON (SMALL LAMP))...10893
TROUBLESHOOTING CODE [E-12] (THE TURN SIGNAL DOES NOT BLINK)...10894
TROUBLESHOOTING CODE [E-13] (THE HORN DOES NOT SOUND)...10896
TROUBLESHOOTING CODE [E-14] (THE AIR CONDITIONER DOES NOT WORK OR DOES NOT STOP)...10898
TROUBLESHOOTING OF ENGINE (S MODE)...10901
METHOD OF USING TROUBLESHOOTING CHARTS...10902
S-1 STARTING PREFORMANCE IS POOR (STARTING ALWAYS TAKES TIME)...10906
S-2 ENGINE DOES NOT START...10907
(1) ENGINE DOES NOT TURN...10907
(2) ENGINE TURN BUT NO EXHAUST SMOKE COMES OUT (FUEL IS BEING INJECTED)...10908
(3) EXHAUST SMOKE COMES OUT BUT ENGINE DOES NOT START (FUEL IS BEING INJECTED)...10909
S-3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR)...10910
S-4 ENGINE STOPS DURING OPERATIONS...10911
S-5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING)...10912
S-6 ENGINE LACKS OUTPUT (OR LACKS POWER)...10913
S-7 EXHAUST SMOKE IS BLACK (INCOMPLATE COMBUSTION)...10914
S-8 OIL CONSUMPTION IS ESCESSIVE (OR EXHAUST SMOKE IS BLUE)...10915
S-9 OIL BECOMES CONTAMINATED QUICKLY...10916
S-10 FUEL CONSUMPTION IS EXCESSIVE...10917
S-11 OIL IS IN COOLING COOLANT, OR COOLANT SPURTS BACK, OR COOLANT LEVEL GOES DOWN...10918
S-12 OIL PRESSURE CAUTION LAMP LIGHTS UP (DROP IN OIL PRESSURE)...10919
S-13 OIL LEVEL RISES (WATER, FUEL IN OIL)...10920
S-14 COOLANT TEMPERATURE BECOMES TOO HIGH (OVERHEATING)...10921
S-15 ABNORMAL NOISE IS MADE...10922
S-16 VIBRATION IS EXCESSIVE...10923
30 DISASSEMBLY AND ASSEMBLY...10924
METHOD OF USING MANUAL...10925
PRECAUTIONS WHEN CARRYING OUT OPERATION...10927
SPECIAL TOOL LIST...10929
REMOVAL AND INSTALLATION OF ENGINE ASSEMBLY...10941
REMOVAL AND INSTALLATION OF CYLINDER HEAD ASSEMBLY...10945
REMOVAL AND INSTALLATION OF RADIATOR AND FAN MOTOR ASSEMBLY...10950
REMOVAL AND INSTALLATION OF AFTERCOOLER ASSEMBLY...10952
REMOVAL AND INSTALLATION OF FUEL INJECTION PUMP...10952
REMOVAL AND INSTALLATION OF NOZZLE HOLDER ASSEMBLY...10955
REMOVAL AND INSTALLATION OF FAN AND MOTOR ASSEMBLY...10957
REMOVAL AND INSTALLATION OF FUEL TANK ASSEMBLY...10958
REMOVAL AND INSTALLATION OF PARKING BRAKE DISC PLATE...10960
REMOVAL AND INSTALLATION OF TORQUE CONVERTER AND TRANSMISSION ASSEMBLY...10963
DISASSEMBLY AND ASSEMBLY OF TRANSMISSION ASSEMBLY...10967
DISASSEMBLY AND ASSEMBLY OF TRANSMISSION CLUTCH PACK ASSEMBLY...10979
DISASSEMBLY AND ASSEMBLY OF PARKING BRAKE ASSEMBLY...10994
DISASSEMBLY AND ASSEMBLY OF TORQUE CONVERTER ASSEMBLY (STANDARD SPECIFICATION)...11002
DISASSEMBLY AND ASSEMBLY OF TORQUE CONVERTER ASSEMBLY (LOCK-UP SPECIFICATION)...11006
REMOVAL AND INSTALLATION OF REAR AXLE ASSEMBLY...11012
REMOVAL AND INSTALLATION OF FRONT AXLE ASSEMBLY...11015
DISASSEMBLY AND ASSEMBLY OF AXLE HOUSING ASSEMBLY...11016
DISASSEMBLY AND ASSEMBLY OF DIFFERENTIAL ASSEMBLY...11024
REMOVAL AND INSTALLATION OF CENTER HINGE PIN...11043
REMOVAL AND INSTALLATION OF CAB ASSEMBLY...11050
REMOVAL AND INSTALLATION OF CAB AND FLOOR FRAME ASSEMBLY...11051
REMOVAL AND INSTALLATION OF TRANSMISSION OF OPERATOR'S CAB GLASS (STUCK GLASS)...11054
REMOVAL AND INSTALLATION OF TRANSMISSION, WORK EQUIPMENT, AND PPC PUMP ASSEMBLY...11062
REMOVAL AND INSTALLATION OF STEERING, SWITCHING, AND FAN PUMP ASSEMBLY...11063
REMOVAL AND INSTALLATION OF STEERING DEMAND VALVE ASSEMBLY...11064
REMOVAL AND INSTALLATION OF E.C.S.S. VALVE ASSEMBLY...11065
REMOVAL AND INSTALLATION OF WORK EQUIPMENT VALVE ASSEMBLY...11066
DISASSEMBLY AND ASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY (STEERING, LIFT, AND BUCKET CYLINDER ASSEMBLY)...11068
REMOVAL AND INSTALLATION OF HYDRAULIC TANK ASSEMBLY...11076
REMOVAL AND INSTALLATION OF WORK EQUIPMENT ASSEMBLY...11078
REMOVAL AND INSTALLATION OF COUNTER WEIGHT...11082
REMOVAL AND INSTALLATION OF AIR CONDITIONER UNIT ASSEMBLY...11083
REMOVAL AND INSTALLATION OF AIR CONDITIONER COMPRESSOR ASSEMBLY...11086
DISASSEMBLY, ASSEMBLY OF OPERATOR'S SEAT ASSEMBLY...11087
90 OTHERS...11097
POWER TRAIN OIL CIRCUIT DIAGRAM (WITHOUT TORQUE CONVERTER LOCKUP CLUTCH)...11098
POWER TRAIN OIL CIRCUIT DIAGRAM (WITH TORQUE CONVERTER LOCKUP CLUTCH)...11099
BRAKE OIL CIRCUIT DIAGRAM...11100
WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM...11101
WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM (FOR ELECTRIC WORK EQUIPMENT LEVER)...11102
ELECTRICAL CIRCUIT DIAGRAM...11103
1/8 (1/4)...11103
1/8 (2/4)...11104
1/8 (3/4)...11105
1/8 (4/4)...11106
2/8 (1/4)...11107
2/8 (2/4)...11108
2/8 (3/4)...11109
2/8 (4/4)...11110
3/8...11111
4/8...11112
5/8...11113
6/8...11114
7/8...11115
8/8...11116
SEBM024712 - Wheel Loader WA380-5 Shop Manual...11117
COVER...11117
CONTENTS...11118
01 GENERAL...11145
GENERAL ASSEMBLY DRAWING...11146
SPECIFICATIONS...11147
WEIGHT TABLE...11151
LIST OF LUBRICANT AND COOLANT...11153
10 STRUCTURE AND FUNCTION, MAINTENANCE STANDARD...11155
COOLING SYSTEM...11156
ENGINE MOUNT, TRANSMISSION MOUNT...11157
POWER TRAIN...11158
POWER TRAIN SYSTEM DIAGRAM...11159
DRIVE SHAFT (PROPELLER SHAFT)...11162
TORQUE CONVERTER, TRANSMISSION PIPING...11163
TORQUE CONVERTER...11164
TRANSMISSION...11172
TRANSMISSION CONTROL VALVE...11188
AXLE...11206
DIFFERENTIAL...11208
FINAL DRIVE...11217
AXLE MOUNTING,CENTER HINGE PIN...11220
STEERING PIPING...11224
STEERING COLUMN, ORBIT-ROLL...11225
STEERING VALVE...11226
ORBIT-ROLL VALVE...11241
STOP VALVE...11245
STEERING PUMP, SWITCH PUMP...11246
EMERGENCY STEERING PUMP (IF EQUIPPED)...11248
EMERGENCY STEERING MOTOR (IF EQUIPPED)...11249
STEERING CYLINDER...11250
JOYSTICK STEERING LEVER (IF EQUIPPED)...11252
STEERING LEVER (IF EQUIPPED)...11253
STEERING SWITCH VALVE (IF EQUIPPED)...11255
BRAKE PIPING...11256
BRAKE VALVE...11258
CHARGE VALVE...11265
ACCUMULATOR (FOR BRAKE)...11269
BRAKE...11271
PARKING BRAKE CONTROL...11276
PARKING BRAKE...11277
PARKING BRAKE SOLENOID VALVE...11279
PARKING BRAKE EMERGENCY RELEASE VALVE...11281
HYDRAULI PIPING...11282
WORK EQUIPMENT CONTROL LEVER...11285
HYDRAULIC TANK...11287
TORQUE CONVERTER CHARGING, WORK EQUIPMENT, AND PILOT CONTROL PUMPS...11289
PPC RELIEF VALVE...11291
E.C.S.S. VALVE (IF EQUIPPED)...11293
WORK EQUIPMENT CONTROL VALVE...11295
WORK EQUIPMENT PPC VALVE...11312
PPC VALVE (FOR MULTI FUNCTION MONO LEVER)...11318
EPC SOLENOID VALVE (IF EQUIPPED)...11324
SHUT OFF VALVE (IF EQUIPPED)...11327
ATTACHMENT PPC VALVE (IF EQUIPPED)...11328
COOLING FAN MOTOR...11332
COOLING FAN MOTOR DRIVE PUMP...11337
WORK EQUIPMENT LINKAGE...11345
BUCKET...11347
BUCKET POSITIONER, LIFT ARM KICK-OUT...11348
WORK EQUIPMENT CYLINDER...11354
CAB...11355
AIR CONDITIONER (IF EQUIPPED)...11356
MACHINE MONITORING SYSTEM...11357
MACHINE MONITOR...11364
TRANSMISSION CONTROL SYSTEM...11434
TRANSMISSION CONTROLLER...11462
WORK EQUIPMENT CONTROL SYSTEM (IF EQUIPPED)...11464
WORK EQUIPMENT CONTROLLER (IF EQUIPPED)...11480
ELECTRIC TRANSMISSION CONTROL...11482
KICK DOWN, HOLD SWITCH...11486
ENGINE STARTING CIRCUIT...11487
ENGINE STOP CIRCUIT...11489
PREHEATING CIRCUIT...11490
ENGINE POWER MODE SELECTOR CIRCUIT...11491
PARKING BRAKE CIRCUIT...11492
SENSORS...11496
20 TESTING AND ADJUSTING...11507
STANDARD VALUE TABLE FOR ENGINE...11508
STANDARD VALUE TABLE FOR CHASSIS...11509
TESTING AND ADJUSTING...11517
TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING...11519
MEASURING ENGINE SPEED...11520
MEASURING EXHAUST COLOR...11522
MEASURING EXHAUST TEMPERATURE...11523
ADJUSTING VALVE CLEARANCE...11524
MEASURING COMPRESSION PRESSURE...11526
MEASURING BLOW-BY PRESSURE...11527
MEASURING ENGINE OIL PRESSURE...11528
MEASURING INTAKE AIR PRESSURE (BOOST PRESSURE)...11529
TESTING AND ADJUSTING FUEL INJECTION TIMING...11530
ADJUSTING ENGINE SPEED SENSOR...11531
BLEEDING AIR FROM FUEL CIRCUIT...11532
ADJUSTING ENGINE STOP SOLENOID...11533
ADJUSTING ACCELERATOR PEDAL...11535
ADJUSTING TRANSMISSION SPEED SENSOR...11537
TESTING AND ADJUSTING POWER TRAIN OIL PRESSURE...11538
DRAWING OF SPECIAL TOOL...11542
PROCEDURE FOR FLUSHING TORQUE CONVERTER, TRANSMISSION HYDRAULIC CIRCUIT...11543
PROCEDURE FOR MOVING MACHINE WHEN TRANSMISSION VALVE FAILS...11544
TESTING AND ADJUSTING STEERING CONTROL...11546
TESTING AND ADJUSTING STEERING OIL PRESSURE...11547
TESTING HYDRAULIC FAN...11549
MEASURING BRAKE OIL PRESSURE...11550
TESTING WEAR OF WHEEL BRAKE DISC...11552
BLEEDING AIR FROM BRAKE CIRCUIT...11553
TESTING WEAR OF PARKING BRAKE DISC...11554
MANUAL RELEASE METHOD FOR PARKING BRAKE...11555
TESTING AND ADJUSTING ACCUMULATOR CHARGE PRESSURE...11556
TESTING AND ADJUSTING WORKING EQUIPMENT PPC OIL PRESSURE...11558
TESTING AND ADJUSTING WORK EQUIPMENT HYDRAULIC PRESSURE...11560
TESTING AND ADJUSTING BUCKET POSITIONER...11562
TESTING AND ADJUSTING LIFT ARM KICK-OUT...11563
CHECKING PROXIMITY SWITCH ACTUATION PILOT LAMP...11564
ADJUSTING MACHINE MONITOR...11565
TESTING AND ADJUSTING LOAD METER...11568
BLEEDING AIR ...11572
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT...11573
RELEASING REMAINING PRESSURE IN E.C.S.S. CIRCUIT...11573
PM CLINIC INSPECTION TABLE...11574
TROUBLESHOOTING...11577
POINTS TO REMEMBER WHEN TROUBLESHOOTING...11578
SEQUENCE OF EVENTS IN TROUBLESHOOTING...11579
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE...11580
CHECKS BEFORE TROUBLESHOOTING...11588
SPECIAL FUNCTIONS OF MACHINE MONITOR...11590
CATEGORIES, PROCEDURE, AND METHOD OF USING TROUBLESHOOTING CHARTS...11625
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS...11634
T-ADAPTER TABLE...11657
TROUBLESHOOTING OF TRANSMISSION CONTROL SYSTEM (TM MODE)...11661
CONNECTOR TYPES AND MOUNTING LOCATIONS...11665
CONNECTOR LAYOUT DRAWING...11674
TRANSMISSION CONTROL SYSTEM DIAGRAM...11680
ERROR CODE [1500L1] (DOUBLE ENGAGEMENT DETECTED) IS DISPLAYED...11683
ERROR CODE [15SAL1] (F_ECMV FILL SWITCH SYSTEM SHORT-CIRCUITED) IS DISPLAYED...11684
ERROR CODE [15SALH] (F_ECMV FILL SWITCH SYSTEM DISCONNECTED) IS DISPLAYED...11685
ERROR CODE [15SBL1] (R_ECMV FILL SWITCH SYSTEM SHORT-CIRCUITED) IS DISPLAYED...11686
ERROR CODE [15SBLH] (R_ECMV FILL SWITCH SYSTEM DISCONNECTED) IS DISPLAYED...11687
ERROR CODE [15SEL1] (1ST_ECMV FILL SWITCH SYSTEM SHORT-CIRCUITED) IS DISPLAYED...11688
ERROR CODE [15SELH] (1ST_ECMV FILL SWITCH SYSTEM DISCONNECTED) IS DISPLAYED...11689
ERROR CODE [15SFL1] (2ND_ECMV FILL SWITCH SYSTEM SHORT-CIRCUITED) IS DISPLAYED...11690
ERROR CODE [15SFLH] (2ND_ECMV FILL SWITCH SYSTEM DISCONNECTED) IS DISPLAYED...11691
ERROR CODE [15SGL1] (3RD_ECMV FILL SWITCH SYSTEM SHORT-CIRCUITED) IS DISPLAYED...11692
ERROR CODE [15SGLH] (3RD_ECMV FILL SWITCH SYSTEM DISCONNECTED) IS DISPLAYED...11693
ERROR CODE [15SHL1] (4TH_ECMV FILL SWITCH SYSTEM SHORT-CIRCUITED) IS DISPLAYED...11694
ERROR CODE [15SHLH] (4TH_ECMV FILL SWITCH SYSTEM DISCONNECTED) IS DISPLAYED...11695
ERROR CODE [15SJL1] (LOCKUP_ECMV FILL SWITCH SYSTEM SHORT-CIRCUITED) IS DISPLAYED...11696
ERROR CODE [15SJLH] (LOCKUP_ECMV FILL SWITCH SYSTEM DISCONNECTED) IS DISPLAYED...11697
ERROR CODE [989F00] (TRANSMISSION PROTECTION CAUTION) IS DISPLAYED...11698
ERROR CODE [B@C7NS] (REAR BRAKE COOLING OIL OVERHEAT) IS DISPLAYED...11700
ERROR CODE [D150KA] (EMERGENCY STEERING RELAY OUTPUT SYSTEM DISCONNECTED) IS DISPLAYED...11701
ERROR CODE [D150KB] (EMERGENCY STEERING RELAY OUTPUT SYSTEM GROUNDED) IS DISPLAYED...11702
ERROR CODE [D160KA] (BACKUP LAMP RELAY OUTPUT SYSTEM DISCONNECTED) IS DISPLAYED...11703
ERROR CODE [D160KB] (BACKUP LAMP RELAY OUTPUT SYSTEM GROUNDED) IS DISPLAYED...11704
ERROR CODE [D191KA] (NEUTRAL SAFETY RELAY OUTPUT SYSTEM DISCONNECTED) IS DISPLAYED...11706
ERROR CODE [D191KB] (NEUTRAL SAFETY RELAY OUTPUT SYSTEM GROUNDED) IS DISPLAYED...11708
ERROR CODE [D192KA] (E.C.S.S. R RELAY OUTPUT SYSTEM DISCONNECTED) IS DISPLAYED...11710
ERROR CODE [D192KB] (E.C.S.S. RELAY OUTPUT SYSTEM GROUNDED) IS DISPLAYED...11711
ERROR CODE [D198KB] (GROUND FAULT IN THE LOW TEMPERATURE BYPASS RELAY SYSTEM) IS DISPLAYED...11712
ERROR CODE [D198KY] (HOT-SHORT IN THE LOW-TEMPERATURE BYPASS RELAY SYSTEM) IS DISPLAYED...11713
ERROR CODE [DAQ0KK] (CONTROLLER POWER SUPPLY VOLTAGE LOWERED) IS DISPLAYED...11714
ERROR CODE [DAQ2KK] (DEFECTIVE SOLENOID POWER SUPPLY SYSTEM) IS DISPLAYED...11715
ERROR CODE [DAQ9KQ] (MODEL SELECTION SIGNAL MISMATCH) IS DISPLAYED...11716
ERROR CODE [DDK3KA] (RIGHT FNR SWITCH SIGNAL NOT INPUT) IS DISPLAYED...11718
ERROR CODE [DDK3KB] (MULTIPLE RIGHT FNR SWITCH SIGNAL INPUT) IS DISPLAYED...11720
ERROR CODE [DDK4KA] (JOYSTICK FORWARD/REVERSE SWITCH SIGNAL IS NOT INPUT) IS DISPLAYED...11723
ERROR CODE [DDK4KB] (MULTIPLE JOYSTICK FORWARD/REVERSE SWITCH SIGNALS ARE INPUT) IS DISPLAYED...11725
ERROR CODE [DDK5LD] (SHORT CIRCUIT WITH POWER SOURCE IN JOYSTICK SHIFT_UP/SHIFT_DOWN SWITCH) IS DISPLAYED...11727
ERROR CODE [DDK6KA] (FORWARD-REVERSE LEVER SIGNAL NOT INPUT) IS DISPLAYED...11728
ERROR CODE [DDK6KB] (MULTIPLE FORWARD-REVERSE LEVER SIGNAL INPUT) IS DISPLAYED...11730
ERROR CODE [DDS5KA] (STEERING PRESSURE SWITCH DISCONNECTED) IS DISPLAYED...11732
ERROR CODE [DDS5KB] (STEERING PRESSURE SWITCH GROUNDED) IS DISPLAYED...11733
ERROR CODE [DDT0L4] (MANUAL/AUTO-SHIFT SELECTOR SWITCH SELECTION FAILURE) IS DISPLAYED...11734
ERROR CODE [DDT4LD] (GROUND FAULT OF TRANSMISSION CUT-OFF SETTING SWITCH) IS DISPLAYED...11736
ERROR CODE [DDW9LD] (GROUND FAULT OF KICKDOWN SWITCH SYSTEM) IS DISPLAYED...11737
ERROR CODE [DDWLLD] (GROUND FAULT OF HOLD SWITCH SYSTEM) IS DISPLAYED...11740
ERROR CODE [DF10KA] (NO INPUT OF GEAR SHIFT LEVER SIGNAL) IS DISPLAYED...11742
ERROR CODE [DF10KB] (INPUT OF MULTIPLE GEAR SHIFT LEVER SIGNALS) IS DISPLAYED...11744
ERROR CODE [DGF1KX] (TRANSMISSION OIL TEMPERATURE SENSOR SYSTEM FAILURE) IS DISPLAYED...11746
ERROR CODE [DGR2KA] (REAR BRAKE OIL TEMPERATURE SENSOR SYSTEM DISCONNECTION) IS DISPLAYED...11747
ERROR CODE [DGR2KB] (GROUND FAULT OF REAR BRAKE OIL TEMPERATURE SENSOR SYSTEM) IS DISPLAYED...11748
ERROR CODE [DHT1KX] (TRANSMISSION CUT-OFF (LEFT BRAKE PRESSURE SENSOR) SIGNAL DISCONTINUITY) IS DISPLAYED...11749
ERROR CODE [DLE2KA] (ENGINE REVOLUTION SENSOR SYSTEM DISCONTINUITY) IS DISPLAYED...11750
ERROR CODE [DLE2LC] (ENGINE REVOLUTION SENSOR FAILURE) IS DISPLAYED...11751
ERROR CODE [DLT3KA] (SPEED SENSOR (TRANSMISSION OUTPUT SHAFT REVOLUTION) SYSTEM DISCONTINUITY) IS DISPLAYED...11752
ERROR CODE [DT20KB] (GROUND FAULT OF BUILT-IN INDICATOR LAMP SYSTEM OF TRANSMISSION CUT-OFF SWITCH) IS DISPLAYED...11753
ERROR CODE [DW7BKA] (FAN PUMP REVERSE SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...11754
ERROR CODE [DW7BKB] (FAN PUMP REVERSE SOLENOID SYSTEM SHORT-CIRCUITING) IS DISPLAYED...11755
ERROR CODE [DW7CKA] (SWITCH PUMP CUT-OFF RELAY DISCONTINUITY) IS DISPLAYED...11756
ERROR CODE [DW7CKB] (SWITCH PUMP CUT-OFF RELAY GROUND FAULT) IS DISPLAYED...11757
ERROR CODE [DX16KA] (FAN PUMP EPC SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...11758
ERROR CODE [DX16KB] (FAN PUMP EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...11759
ERROR CODE [DXH1KA] (LOCK-UP CLUTCH_ECMV SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...11760
ERROR CODE [DXH1KB] (LOCK-UP CLUTCH_ECMV SOLENOID SYSTEM SHORT-CIRCUITING) IS DISPLAYED...11761
ERROR CODE [DXH4KA] (1ST_ECMV SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...11762
ERROR CODE [DXH4KB] (1ST_ECMV SOLENOID SYSTEM SHORT-CIRCUITING) IS DISPLAYED...11763
ERROR CODE [DXH5KA] (2ND_ECMV SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...11764
ERROR CODE [DXH5KB] (2ND_ECMV SOLENOID SYSTEM SHORT-CIRCUITING) IS DISPLAYED...11765
ERROR CODE [DXH6KA] (3RD_ECMV SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...11766
ERROR CODE [DXH6KB] (3RD_ECMV SOLENOID SYSTEM SHORT-CIRCUITING) IS DISPLAYED...11767
ERROR CODE [DXH7KA] (R_ECMV SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...11768
ERROR CODE [DXH7KB] (R_ECMV SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...11769
ERROR CODE [DXH8KA] (F_ECMV SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...11770
ERROR CODE [DXH8KB] (F_ECMV SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...11771
ERROR CODE [DXHHKA] (4TH_ECMV SOLENOID SYSTEM DISCONTINUITY) IS DISPLAYED...11772
ERROR CODE [DXHHKB] (4TH_ECMV SOLENOID SYSTEM SHORT-CIRCUITING) IS DISPLAYED...11773
ERROR CODE [DY30MA] (MOTOR-DRIVEN EMERGENCY STEERING PUMP FAILURE (MALFUNCTION IN MANUAL MODE))...11774
ERROR CODE [DY30MC] (MOTOR-DRIVEN EMERGENCY STEERING PUMP FAILURE (MALFUNCTION IN MANUAL MODE))...11776
TROUBLESHOOTING CODE [TM-1] DISCONTINUITY OR HOT SHORT-CIRCUITING OF KICKDOWN SWITCH SYSTEM...11778
TROUBLESHOOTING CODE [TM-2] HOLD SWITCH SYSTEM DISCONTINUITY OR HOT SHORT-CIRCUITING...11780
TROUBLESHOOTING CODE [TM-3] TORQUE CONVERTER LOCK-UP SWITCH SYSTEM FAILURE...11782
TROUBLESHOOTING CODE [TM-4] NEUTRALIZER SIGNAL (PARKING BRAKE SWITCH SIGNAL) SYSTEM FAILURE...11784
TROUBLESHOOTING CODE [TM-5] EMERGENCY STEERING SWITCH (MOTOR-DRIVEN EMERGENCY STEERING OPERATION SWITCH) SIGNAL SYSTEM FAILURE...11786
TROUBLESHOOTING CODE [TM-6] TRANSMISSION CUT-OFF SWITCH SYSTEM DISCONTINUITY OR GROUND FAULT...11788
TROUBLESHOOTING CODE [TM-7] TRANSMISSION CUT-OFF SETTING SWITCH SYSTEM DISCONTINUITY OR HOT SHORT-CIRCUITING...11789
TROUBLESHOOTING CODE [TM-8] TRANSMISSION CUT-OFF (LEFT BRAKE SENSOR) SIGNAL SHORT-CIRCUITING...11790
TROUBLESHOOTING CODE [TM-9a] JOYSTICK SHIFT_UP/SHIFT_DOWN SWITCH SYSTEM FAILURE (DISCONTINUITY OR GROUND FAULT)...11791
TROUBLESHOOTING CODE [TM-9b] JOYSTICK ON/OFF CHANGE OVER SWITCH SYSTEM FAILURE...11792
TROUBLESHOOTING CODE [TM-10] FNR SWITCH MODE CHANGE OVER SWITCH SYSTEM FAILURE...11794
TROUBLESHOOTING CODE [TM-11] STARTING SWITCH "C" (IGN_C) SIGNAL SYSTEM FAILURE...11796
TROUBLESHOOTING CODE [TM-12] ENGINE POWER MODE SWITCH DISCONTINUITY OR GROUND FAULT...11798
TROUBLESHOOTING CODE [TM-13] TRAVEL DAMPER ON/OFF SWITCH DISCONTINUITY OR GROUND FAULT...11799
TROUBLESHOOTING CODE [TM-14] HYDRAULIC FAN REVERSE SWITCH SIGNAL SYSTEM HOT SHORT-CIRCUITING OR DISCONTINUITY...11800
TROUBLESHOOTING CODE [TM-15] MOTOR-DRIVEN EMERGENCY STEERING RELAY OUTPUT SYSTEM HOT SHORT-CIRCUITING...11801
TROUBLESHOOTING CODE [TM-16] TRAVEL DAMPER RELAY OUTPUT SYSTEM HOT SHORT-CIRCUITING...11802
TROUBLESHOOTING CODE [TM-17] SWITCH PUMP CUT-OFF RELAY OUTPUT SYSTEM HOT SHORT-CIRCUITING...11803
TROUBLESHOOTING CODE [TM-18] BACK LAMP RELAY OUTPUT SYSTEM HOT SHORT-CIRCUITING...11804
TROUBLESHOOTING CODE [TM-19] NEUTRAL OUTPUT SYSTEM HOT SHORT-CIRCUITING...11805
TROUBLESHOOTING CODE [TM-20] FECMV SOLENOID SYSTEM HOT SHORT-CIRCUITING...11806
TROUBLESHOOTING CODE [TM-21] RECMV SOLENOID SYSTEM HOT SHORT-CIRCUITING...11807
TROUBLESHOOTING CODE [TM-22] 1ST ECMV SOLENOID SYSTEM HOT SHORT-CIRCUITING...11808
TROUBLESHOOTING CODE [TM-23] 2ND ECMV SOLENOID SYSTEM HOT SHORT-CIRCUITING...11809
TROUBLESHOOTING CODE [TM-24] 3RD ECMV SOLENOID SYSTEM HOT SHORT-CIRCUITING...11810
TROUBLESHOOTING CODE [TM-25] 4TH ECMV SOLENOID SYSTEM HOT SHORT-CIRCUITING...11811
TROUBLESHOOTING CODE [TM-26] LOCK-UP ECMV SOLENOID SYSTEM HOT SHORT-CIRCUITING...11812
TROUBLESHOOTING CODE [TM-27] FAN PUMP EPC SOLENOID SYSTEM HOT SHORT-CIRCUITING...11813
TROUBLESHOOTING CODE [TM-28] FAN REVERSE SOLENOID SYSTEM HOT SHORT-CIRCUITING...11814
TROUBLESHOOTING CODE [TM-29] SPEED SENSOR (TRANSMISSION OUTPUT SHAFT REVOLUTION) SYSTEM FAILURE...11815
TROUBLESHOOTING CODE [TM-30] E.C.S.S. SOLENOID SYSTEM DISCONTINUITY OR GROUND FAULT...11816
TROUBLESHOOTING OF WORK EQUIPMENT CONTROL SYSTEM (WRK MODE)...11817
CONNECTOR TYPES AND MOUNTING LOCATIONS...11821
CONNECTOR LAYOUT DRAWING...11830
WORK EQUIPMENT CONTROL SYSTEM DIAGRAM...11838
FAILURE CODE [D193KA] (DEFECTIVE JOYSTICK STEERING CUT RELAY SYSTEM (MAIN SYSTEM DISCONNECTED)) IS DISPLAYED...11841
FAILURE CODE [D193KB] (THE JOYSTICK SOLENOID CUT RELAY OUTPUT SYSTEM IS GROUNDED PROPERLY) IS DISPLAYED...11842
FAILURE CODE [DB90KK] (LOWERING WORK EQUIPMENT CONTROLLER POWER SUPPLY) IS DISPLAYED...11843
FAILURE CODE [DB92KK] (DEFECTIVE SOLENOID ELECTRIC POWER SUPPLY SYSTEM) IS DISPLAYED...11844
FAILURE CODE [DB95KX] (DEFECTIVE 5 V ELECTRIC POWER SUPPLY SYSTEM) IS DISPLAYED...11846
FAILURE CODE [DD1ALD] (DEFECTIVE REMOTE POSITIONER UP SET SWITCH (GROUND FAULT)) IS DISPLAYED...11848
FAILURE CODE [DD1BLD] (DEFECTIVE REMOTE POSITIONER DOWN SET SWITCH (GROUND FAULT)) IS DISPLAYED...11849
FAILURE CODE [DFA0KM] (DEFECTIVE NEUTRAL CAUTION FOR JOYSTICK WORK EQUIPMENT LEVER) IS DISPLAYED...11850
FAILURE CODE [DK59KA] (DEFECTIVE LIFT ARM EPC LEVER POTENTIOMETER SYSTEM (MAIN CIRCUIT DISCONTINUITY OR GROUND FAULT)) IS DISPLAYED...11851
FAILURE CODE [DK59KY] (DEFECTIVE LIFT ARM EPC LEVER POTENTIOMETER SYSTEM (MAIN SHORT CIRCUIT)) IS DISPLAYED...11852
FAILURE CODE [DK59L8] (DEFECTIVE LIFT ARM EPC POTENTIOMETER SYSTEM (DISPLACEMENT OF MAIN AND SUB-CIRCUIT)) IS DISPLAYED...11853
FAILURE CODE [DK5AKA] (DEFECTIVE LIFT ARM EPC LEVER POTENTIOMETER SYSTEM (DISCONNECTION OF MAIN) (DISCONNECTION,GROUND OF SUB)) IS DISPLAYED...11854
FAILURE CODE [DK5AKY] (DEFECTIVE LIFT ARM EPC LEVER POTENTIOMETER SYSTEM (SHORT SUB-CIRCUIT)) IS DISPLAYED...11855
FAILURE CODE [DK5BKA] (DEFECTIVE BUCKET EPC LEVER POTENTIOMETER SYSTEM (MAIN CIRCUIT DISCONTINUITY OR GROUND FAULT)) IS DISPLAYED...11856
FAILURE CODE [DK5BKY] (DEFECTIVE BUCKET EPC LEVER POTENTIOMETER SYSTEM (MAIN SHORTED)) IS DISPLAYED...11857
FAILURE CODE [DK5BL8] (DEFECTIVE INPUT SIGNAL FOR BUCKET EPC LEVER POTENTIOMETER SYSTEM (DISPLACEMENT OF MAIN AND SUB-CIRCUIT)) IS DISPLAYED...11858
FAILURE CODE [DK5CKA] (DEFECTIVE BUCKET EPC LEVER POTENTIOMETER SYSTEM (SUB-CIRCUIT DISCONTINUITY OR GROUND FAULT)) IS DISPLAYED...11859
FAILURE CODE [DK5CKY] (DEFECTIVE BUCKET EPC LEVER POTENTIOMETER SYSTEM (SHORT SUB-CIRCUIT)) IS DISPLAYED...11860
FAILURE CODE [DK5DKA] (DEFECTIVE 3RD VALVE LEVER POTENTIOMETER SYSTEM (MAIN CIRCUIT DISCONTINUITY OR GROUND FAULT)) IS DISPLAYED...11861
FAILURE CODE [DK5DKY] (DEFECTIVE 3RD VALVE LEVER POTENTIOMETER SYSTEM (MAIN CIRCUIT SHORT CIRCUIT)) IS DISPLAYED...11862
FAILURE CODE [DK5DL8] (DEFECTIVE 3RD VALVE EPC LEVER POTENTIOMETER SYSTEM INPUT SIGNAL (DISPLACEMENT OF MAIN AND SUB-CIRCUIT)) IS DISPLAYED...11863
FAILURE CODE [DK5EKA] (DEFECTIVE 3RD VALVE EPC LEVER POTENTIOMETER SYSTEM (SUB-CIRCUIT DISCONTINUITY OR GROUND FAULT)) IS DISPLAYED...11864
FAILURE CODE [DK5EKY] (DEFECTIVE 3RD VALVE EPC LEVER POTENTIOMETER SYSTEM (SHORT SUB-CIRCUIT)) IS DISPLAYED...11865
FAILURE CODE [DK5FKA] (DEFECTIVE JOYSTICK STEERING EPC LEVER POTENTIOMETER SYSTEM (MAIN CIRCUIT DISCONTINUITY OR GROUND FAULT)) IS DISPLAYED...11866
FAILURE CODE [DK5FKY] (DEFECTIVE JOYSTICK STEERING EPC LEVER POTENTIOMETER SYSTEM (MAIN CIRCUIT SHORTED)) IS DISPLAYED...11867
FAILURE CODE [DK5FKM] (JOYSTICK STEERING EPC LEVER NEUTRAL SYSTEM CAUTION) IS DISPLAYED...11868
FAILURE CODE [DK5FL8] (DEFECTIVE JOYSTICK STEERING EPC LEVER POTENTIOMETER SYSTEM INPUT SIGNAL (DEVIATION OF POSITIONAL SIGNALS OF MAIN AND SUB-CIRCUITS)) IS DISPLAYED...11869
FAILURE CODE [DG5GKA] (DEFECTIVE JOYSTICK STEERING EPC LEVER POTENTIOMETER SYSTEM (DISCONNECTION OR GROUND FAULT OF SUB-CIRCUIT)) IS DISPLAYED...11870
FAILURE CODE [DK5GKY] (DEFECTIVE JOYSTICK STEERING EPC LEVER POTENTIOMETER SYSTEM (SUB-CIRCUIT SHORT CIRCUIT)) IS DISPLAYED...11871
FAILURE CODE [DKA0KA] (DEFECTIVE LIFT ARM ANGLE SENSOR SYSTEM (DISCONNECTION OR GROUND FAULT)) IS DISPLAYED...11872
FAILURE CODE [DKA0KY] (DEFECTIVE LIFT ARM ANGLE SENSOR SYSTEM (SHORT CIRCUIT)) IS DISPLAYED...11873
FAILURE CODE [DLE2LC] (DEFECTIVE ENGINE SPEED SENSOR SYSTEM) IS DISPLAYED...11874
FAILURE CODE [DLT3LC] (DEFECTIVE TRANSMISSION OUTPUT AXIS SPEED SENSOR SYSTEM (DISCONNECTED)) IS DISPLAYED...11875
FAILURE CODE [DUM1KB] (REMOTE POSITIONER RAISE LAMP SYSTEM GROUND FAULT) IS DISPLAYED...11876
FAILURE CODE [DUM2KB] (REMOTE POSITIONER LOWER LAMP SYSTEM GROUND FAULT) IS DISPLAYED...11877
FAILURE CODE [DW4PKA] (DISCONNECTED LIFT ARM RAISE EPC SOLENOID SYSTEM) IS DISPLAYED...11878
FAILURE CODE [DW4PKB] (LIFT ARM RAISE EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...11879
FAILURE CODE [DW4QKA] (DISCONNECTED LIFT ARM LOWER EPC SOLENOID SYSTEM) IS DISPLAYED...11880
FAILURE CODE [DW4QKB] (LIFT ARM LOWER EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...11881
FAILURE CODE [DW4RKA] (DISCONNECTED BUCKET TILT EPC SOLENOID SYSTEM) IS DISPLAYED...11882
FAILURE CODE [DW4RKB] (BUCKET TILT EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...11883
FAILURE CODE [DW4SKA] (BUCKET DUMP EPC SOLENOID SYSTEM DISCONNECTION) IS DISPLAYED...11884
FAILURE CODE [DW4SKB] (BUCKET DUMP EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...11885
FAILURE CODE [DWM1KA] (WORK EQUIPMENT NEUTRAL LOCK SOLENOID SYSTEM DISCONNECTION) IS DISPLAYED...11886
FAILURE CODE [DWM1KB] (WORK EQUIPMENT NEUTRAL LOCK SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...11887
FAILURE CODE [DWN6KA] (LIFT ARM RAISE MAGNET DETENT SYSTEM DISCONNECTION) IS DISPLAYED...11888
FAILURE CODE [DWN6KB] (LIFT ARM RAISE MAGNET DETENT SYSTEM GROUND FAULT) IS DISPLAYED...11889
FAILURE CODE [DWN7KA] (LIFT ARM FLOATING MAGNET DETENT SYSTEM DISCONNECTION) IS DISPLAYED...11890
FAILURE CODE [DWN7KB] (LIFT ARM FLOATING MAGNET DETENT SYSTEM GROUND FAULT) IS DISPLAYED...11891
FAILURE CODE [DWN8KA] (BUCKET TILT MAGNET DETENT SYSTEM DISCONNECTION) IS DISPLAYED...11892
FAILURE CODE [DWN8KB] (BUCKET TILT MAGNET DETENT SYSTEM FAILURE (POWER SUPPLY SYSTEM GROUND FAULT)) IS DISPLAYED...11893
FAILURE CODE [DXHJKA] (3RD VALVE EXTENSION EPC SOLENOID SYSTEM DISCONNECTION) IS DISPLAYED...11894
FAILURE CODE [DXHJKB] (3RD VALVE EXTENSION EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...11895
FAILURE CODE [DXHKKA] (3RD VALVE RETRACTION EPC SOLENOID SYSTEM DISCONNECTION) IS DISPLAYED...11896
FAILURE CODE [DXHKKB] (3RD VALVE RETRACTION EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...11897
FAILURE CODE [DXHLKA] (JOYSTICK STEERING RIGHT-HAND EPC SOLENOID SYSTEM DISCONNECTION) IS DISPLAYED...11898
FAILURE CODE [DXHLKB] (JOYSTICK STEERING RIGHT-HAND EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...11899
FAILURE CODE [DXHMKA] (JOYSTICK STEERING LEFT-HAND EPC SOLENOID SYSTEM DISCONNECTION) IS DISPLAYED...11900
FAILURE CODE [DXHMKB] (JOYSTICK STEERING LEFT-HAND EPC SOLENOID SYSTEM GROUND FAULT) IS DISPLAYED...11901
TROUBLESHOOTING CODE [WRK-1] DEFECTIVE LIFT ARM LOCK SWITCH SYSTEM...11902
TROUBLESHOOTING CODE [WRK-2] DEFECTIVE REMOTE POSITIONER RAISE SETTING SWITCH SYSTEM...11903
TROUBLESHOOTING CODE [WRK-3] DEFECTIVE REMOTE POSITIONER LOWER SETTING SWITCH SYSTEM...11904
TROUBLESHOOTING CODE [WRK-4] DEFECTIVE REMOTE POSITIONER RAISE SELECTION SWITCH SYSTEM...11906
TROUBLESHOOTING CODE [WRK-5] DEFECTIVE REMOTE POSITIONER LOWER ON/OFF SWITCH SYSTEM...11908
TROUBLESHOOTING CODE [WRK-6] DEFECTIVE BUCKET CYLINDER PROXIMITY SWITCH SYSTEM...11910
TROUBLESHOOTING CODE [WRK-7] DEFECTIVE BUCKET CYLINDER FULL STROKE DETECTION SWITCH SYSTEM...11912
TROUBLESHOOTING CODE [WRK-8] DEFECTIVE SEMI-AUTOMATIC DIGGING HARD SELECTION SWITCH SYSTEM...11913
TROUBLESHOOTING CODE [WRK-9] DEFECTIVE SEMI-AUTOMATIC DIGGING SOFT SELECTION SWITCH SYSTEM...11914
TROUBLESHOOTING CODE [WRK-10] DEFECTIVE JOYSTICK ON/OFF SWITCH SYSTEM...11916
TROUBLESHOOTING CODE [WRK-11] DEFECTIVE JOYSTICK STEERING SPEED HI/LO SWITCH SYSTEM...11918
TROUBLESHOOTING CODE [WRK-12] DEFECTIVE JOYSTICK SOLENOID CUT RELAY OUTPUT SYSTEM...11919
TROUBLESHOOTING CODE [WRK-13] HOT SHORT-CIRCUITED LIFT ARM RAISE MAGNET DETENT OUTPUT SYSTEM...11920
TROUBLESHOOTING CODE [WRK-14] HOT SHORT-CIRCUITED LIFT ARM FLOATING MAGNET DETENT OUTPUT SYSTEM...11921
TROUBLESHOOTING CODE [WRK-15] HOT SHORT-CIRCUITED BUCKET TILT MAGNET DETENT OUTPUT SYSTEM...11922
TROUBLESHOOTING CODE [WRK-16] HOT SHORT-CIRCUITED WORK EQUIPMENT NEUTRAL LOCK SOLENOID OUTPUT SYSTEM...11923
TROUBLESHOOTING CODE [WRK-17] HOT SHORT-CIRCUITED LIFT ARM RAISE EPC SOLENOID SYSTEM...11924
TROUBLESHOOTING CODE [WRK-18] HOT SHORT-CIRCUITED LIFT ARM LOWER EPC SOLENOID SYSTEM...11925
TROUBLESHOOTING CODE [WRK-19] HOT SHORT-CIRCUITED BUCKET TILT EPC SOLENOID SYSTEM...11926
TROUBLESHOOTING CODE [WRK-20] HOT SHORT-CIRCUITED BUCKET DUMP EPC SOLENOID SYSTEM...11927
TROUBLESHOOTING CODE [WRK-21] HOT SHORT-CIRCUITED 3 VALVES EXTENSION EPC SOLENOID SYSTEM...11928
TROUBLESHOOTING CODE [WRK-22] HOT SHORT-CIRCUITED 3 VALVES RETRACTION EPC SOLENOID SYSTEM...11929
TROUBLESHOOTING CODE [WRK-23] HOT SHORT-CIRCUITED JOYSTICK STEERING RIGHT EPC SOLENOID SYSTEM...11930
TROUBLESHOOTING CODE [WRK-24] HOT SHORT-CIRCUITED JOYSTICK STEERING LEFT EPC SOLENOID SYSTEM...11931
TROUBLESHOOTING CODE [WRK-25] DEFECTIVE BUCKET POSITIONER, LIFT ARM KICK-OUT AND FLOATING HOLDING FUNCTION...11932
TROUBLESHOOTING CODE [WRK-26] DEFECTIVE LIFT ARM KICK-OUT FUNCTION AND CANCELLATION...11934
TROUBLESHOOTING CODE [WRK-27] DEFECTIVE BUCKET LEVELER FUNCTION AND CANCELLATION...11936
TROUBLESHOOTING CODE [WRK-28] DEFECTIVE LIFT ARM FLOATING HOLDING AND CANCELLATION...11938
TROUBLESHOOTING OF MONITOR SYSTEM (MON MODE)...11939
CONNECTOR TYPES AND MOUNTING LOCATIONS...11941
CONNECTOR LAYOUT DRAWING...11950
MONITOR SYSTEM DIAGRAM...11956
FAILURE CODE [2F00MA] DRAGGING OF PARKING BRAKE...11960
FAILURE CODE [2G42ZG] ACCUMULATOR OIL PRESSURE (FRONT CIRCUIT) LOW...11962
FAILURE CODE [2G43ZG] ACCUMULATOR OIL PRESSURE (REAR BRAKE CIRCUIT) LOW...11963
FAILURE CODE [AA1ANX] AIR CLEANER 1 CLOGGED...11964
FAILURE CODE [AB00L6] DEFECTIVE BATTERY CHARGING CIRCUIT (ALTERNATOR TERMINAL R SIGNAL DETECTED WHEN ENGINE STOPPED...11966
FAILURE CODE [AB00MA] DEFECTIVE BATTERY CHARGING CIRCUIT (NO ALTERNATOR TERMINAL R SIGNAL DETECTED, DETECTION FAILURE)...11967
FAILURE CODE [B@BAZG] ENGINE OIL PRESSURE LOW...11968
FAILURE CODE [B@BAZK] ENGINE OIL LEVEL LOW...11969
FAILURE CODE [B@BCNS] ENGINE WATER TEMPERATURE OVERHEATING...11970
FAILURE CODE [B@BCZK] ALARM INDICATING LOW COOLANT LEVEL...11971
FAILURE CODE [B@HANS] HYDRAULIC OIL TEMPERATURE OVERHEATING...11972
FAILURE CODE [B@CENS] TORQUE CONVERTER OIL TEMPERATURE OVERHEATING...11973
FAILURE CODE [D182KZ] THE PREHEATER RELAY COIL IS DISCONNECTED OR SHIRT-CIRCUITED...11974
FAILURE CODE [D5ZHL6] STARTING SWITCH C (IGN"C") INPUT FAILURE...11976
FAILURE CODE [DA80L4] AUTO GREASE INPUT FAILURE...11977
FAILURE CODE [DAF3KK] SW POWER SUPPLY (FOR OPERATION) = ON AND NSW POWER SUPPLY (FOR MEMORY) IS OFF...11978
FAILURE CODE [DAF5KP] 5V POWER SUPPLY OUTPUT FAILURE...11980
FAILURE CODE [DAF6KP] 24V POWER SUPPLY OUTPUT FAILURE...11982
FAILURE CODE [DAFBKM] WRONG INFORMATION ON MODEL SELECTION...11984
FAILURE CODE [DAFSKQ] WRONG INFORMATION ON METER DISPLAY SELECTION...11985
FAILURE CODE [DAQSKR] S-NET COMMUNICATION FAILURE (BETWEEN MONITOR PANEL AND TRANSMISSION CONTROLLER) ...11986
FAILURE CODE [DBQSKR] S-NET COMMUNICATION FAILURE (BETWEEN MONITOR PANEL AND WORK EQUIPMENT CONTROLLER) ...11988
FAILURE CODE [DB9SKR] S-NET COMMUNICATION FAILURE (BETWEEN MONITOR PANEL AND WORK EQUIPMENT CONTROLLER) ...11989
FAILURE CODE [DD15LD] MONITOR PANEL MODE SELECTOR SWITCH 1 (PANEL SW1) INPUT ERROR...11990
FAILURE CODE [DD16LD] MONITOR PANEL MODE SELECTOR SWITCH 1 (PANEL SW2) INPUT ERROR...11991
FAILURE CODE [DD17LD] THE MONITOR PANEL MODE SELECTOR SWITCH 2 (PANEL SW3) INPUT CIRCUIT REMAINS CLOSED FOR MORE THAN ONE MINUTE...11992
FAILURE CODE [DD18LD] MONITOR PANEL MODE SELECTOR SWITCH 2 (PANEL SW4) INPUT ERROR...11993
FAILURE CODE [DD1CLD] SUB-TOTAL SWITCH FAILURE...11994
FAILURE CODE [DDS5L6] DECREASED STEERING OIL PRESSURE...11996
FAILURE CODE [DDY0LD] CANCEL SWITCH FAILURE...11998
FAILURE CODE [DGE2KX] ENGINE WATER TEMPERATURE SENSOR SYSTEM FAILURE...12000
FAILURE CODE [DGE3L6] ABNORMAL CONNECTION OF ENGINE WATER TEMPERATURE (LOW TEMPERATURE) SENSOR SYSTEM...12001
FAILURE CODE [DGH2KX] HYDRAULIC OIL TEMPERATURE SENSOR SYSTEM FAILURE...12002
FAILURE CODE [DGT1KX] TORQUE CONVERTER OIL TEMPERATURE SENSOR SYSTEM FAILURE...12003
FAILURE CODE [DHE4L6] ENGINE OIL PRESSURE SENSOR SYSTEM FAILURE...12004
FAILURE CODE [DHPCKX] BOTTOM PRESSURE SENSOR FAILURE...12006
FAILURE CODE [DHPDKX] HEAD PRESSURE SENSOR FAILURE...12008
FAILURE CODE [DKA0KX] LIFT ARM ANGLE SENSOR FAILURE...12010
FAILURE CODE [DV00KB] SHORT-CIRCUITED ALARM BUZZER OUTPUT SYSTEM...12011
FAILURE CODE [DY30ME] THE EMERGENCY STEERING REMAINS ACTUATED FOR MORE THAN ONE MINUTE...12012
TROUBLESHOOTING CODE [MON-1] THE PARKING BRAKE INDICATOR LAMP DOES NOT LIGHT UP WHEN THE PARKING BRAKE SWITCH IS TURNED ON (THE PARKING BRAKE INDICATOR SWITCH CIRCUIT SUFFERS A GROUND FAULT)...12014
TROUBLESHOOTING CODE [MON-2] THE BRAKE OIL PRESSURE CAUTION LAMP DOES NOT LIGHT UP WHEN THE EMERGENCY BRAKE IS APPLIED (FRONT CIRCUIT)...12016
TROUBLESHOOTING CODE [MON-3] THE BRAKE OIL PRESSURE CAUTION LAMP DOES NOT LIGHT UP WHEN THE EMERGENCY BRAKE IS APPLIED (REAR CIRCUIT)...12017
TROUBLESHOOTING CODE [MON-4] THE AIR CLEANER CLOGGING INDICATOR LAMP DOES NOT LIGHT ON...12018
TROUBLESHOOTING CODE [MON-5] THE ENGINE HYDRAULIC CAUTION LAMP DOES NOT LIGHT ON...12020
TROUBLESHOOTING CODE [MON-6] THE ENGINE OIL LEVEL CAUTION LAMP DOES NOT LIGHT ON...12021
TROUBLESHOOTING CODE [MON-7] THE ENGINE WATER TEMPERATURE CAUTION LAMP DOES NOT LIGHT ON...12022
TROUBLESHOOTING CODE [MON-8] THE RADIATOR WATER VOLUME CAUTION LAMP DOES NOT LIGHT ON...12023
TROUBLESHOOTING CODE [MON-9] THE HYDRAULIC OIL TEMPERATURE CAUTION LAMP DOES NOT LIGHT ON...12024
TROUBLESHOOTING CODE [MON-10] THE TORQUE CONVERTER OIL TEMPERATURE CAUTION LAMP DOES NOT LIGHT ON...12025
TROUBLESHOOTING CODE [MON-11] THE STEERING HYDRAULIC CAUTION LAMP DOES NOT LIGHT ON...12026
TROUBLESHOOTING CODE [MON-12] INPUT FAULT IN MONITOR PANEL MODE SWITCH 1 (PANEL SW1)...12027
TROUBLESHOOTING CODE [MON-13] INPUT FAULT IN MONITOR PANEL MODE SWITCH 1 (PANEL SW2)...12028
TROUBLESHOOTING CODE [MON-14] INPUT FAULT IN MONITOR PANEL MODE SWITCH 2 (PANEL SW3)...12029
TROUBLESHOOTING CODE [MON-15] INPUT FAULT IN MONITOR PANEL MODE SWITCH 2 (PANEL SW4)...12030
TROUBLESHOOTING CODE [MON-16] DEFECTIVE SUBTOTAL SWITCH...12031
TROUBLESHOOTING CODE [MON-17] DEFECTIVE CANCEL SWITCH...12032
TROUBLESHOOTING CODE [MON-18] DEFECTIVE BOTTOM PRESSURE SENSOR (HOT SHORT FAULT)...12033
TROUBLESHOOTING CODE [MON-19] DEFECTIVE HEAD SENSOR...12034
TROUBLESHOOTING CODE [MON-20] THE ALARM BUZZER DOES NOT SOUND OR STOP (DISCONNECTION OR SHORT CIRCUIT WITH CHASSIS GROUND IN BUZZER OUTPUT SYSTEM)...12035
TROUBLESHOOTING OF HYDRAULIC, MECHANICAL SYSTEM (H MODE)...12037
H-1 THE MACHINE DOES NOT START...12038
H-2 THE LOCK-UP CLUTCH IS NOT RELEASED (THE ENGINE STOPS) (WHEN THE LOCK-UP CLUTCH IS PROVIDED)...12040
H-3...12041
a. THE TRAVEL SPEED IS SLOW, THE THRUSTING FORCE IS WEAK, THE UPHILL TRAVELING POWER IS WEAK, AND THE GEAR IS NOT SHIFTED...12041
b. THE TORQUE CONVERTER LOCK-UP CLUTCH IS NOT LET IN (IF THE LOCK-UP CLUTCH IS EQUIPPED)...12043
H-4 SHOCKS ARE LARGE AT THE TIMES OF STARTING AND SHIFTING GEAR...12044
H-5 TIME LAG IS LARGE AT THE TIMES OF STARTING AND SHIFTING GEAR...12046
H-6 THE TORQUE CONVERTER OIL TEMPERATURE IS HIGH...12048
H-7 THE STEERING WHEEL DOES NOT TURN...12049
H-8 THE STEERING WHEEL IS HEAVY...12050
H-9 THE STEERING WHEEL FLUCTUATES OR IS STRONGLY SHOCKED ...12051
H-10 THE MACHINE STEERS TO ONE SIDE WHEN STAVELING...12051
H-11 THE RIGHT AND LEFT SWING RADII ARE DIFFERENT...12051
H-12 THE BRAKE DOES NOT WORK OR DOES NOT WORK WELL...12052
H-13 THE BRAKE IS NOT RELEASED OR IS DRAGGED...12053
H-14 THE BRAKE IS NOT RELEASED OR DRAGGED...12054
H-15 THE LIFT ARM DOES NOT RISE...12055
H-16 THE LIFT ARM MOVES SLOWLY OR THE LIFT ARM RISING FORCE IS INSUFFICIENT...12056
H-17 WHEN RISING,THE LIFT ARM COMES TO MOVE SLOWLY AT SPECIFIC HEIGHT...12057
H-18 THE LIFT ARM CYLINDER CANNOT HOLD DOWN THE BUCKET (THE BUCKET RISES IN THE AIR)...12057
H-19 HYDRAULIC DRIFTS OF THE BOOM OCCUR OFTEN...12057
H-20 THE LIFT ARM WOBBLES DURING OPERATION...12057
H-21 WHEN THE CONTROL LEVER IS SWITCHED FROM "HOLD" TO "RAISE", THE LIFT ARM FALLS TEMPORARILY...12058
H-22 THE BUCKET DOES NOT TILT BACK...12059
H-23 THE BUCKET MOVES SLOWLY OR THE TILTING-BACK FORCE IS INSUFFICIENT...12060
H-24 THE BUCKET COMES TO OPERATE SLOWLY IN HE MIDST OF TILTING-BACK...12061
H-25 THE BUCKET CYLINDER CANNOT HOLD DOWN THE BUCKET...12061
H-26 HYDRAULIC DRIFTS OF THE BUCKET OCCUR OFTEN...12061
H-27 THE BUCKET WOBBLES DURING TRAVEL CARGO (THE WORK EQUIPMENT VALVE IS SET TO "HOLD")...12062
H-28 WHEN THE CONTROL LEVER IS SWITCHED FROM "HOLD" TO "TILT", THE BUCKET FALLS TEMPORARILY...12062
H-29 THE CONTROL LEVERS OF LIFT ARM AND BUCKET DO NOT MOVE SMOOTHLY AND HEAVY...12063
H-30 E.C.S.S. DOES NOT WORK, AND THERE IS PITCING AND BOUNCING...12064
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)...12065
CONNECTOR TYPES AND MOUNTING LOCATIONS...12067
CONNECTOR LAYOUT DRAWING...12076
ELECTRICAL SYSTEM DIAGRAM...12082
TROUBLESHOOTING CODE [E-1-a] (THE ENGINE DOES NOT START. (STARTING SYSTEM))...12084
TROUBLESHOOTING CODE [E-1-b] (THE ENGINE DOES NOT START. (ENGINE STOP SOLENOID SYSTEM))...12088
TROUBLESHOOTING CODE [E-2] (THE ENGINE DOES NOT STOP)...12090
TROUBLESHOOTING CODE [E-3] (PREHEATING IS IMPOSSIBLE OR CONSTANT)...12092
TROUBLESHOOTING CODE [E-4] (THE ENGINE POWER MODES CANNOT BE SELECTED)...12094
TROUBLESHOOTING CODE [E-5] (THE FRONT WIPER DOES NOT FUNCTION)...12096
TROUBLESHOOTING CODE [E-6] (THE REAR WIPER DOES NOT FUNCTION)...12099
TROUBLESHOOTING CODE [E-7] (THE SIDE WIPER DOES NOT FUNCTION (IF EQUIPPED))...12100
TROUBLESHOOTING CODE [E-8] (THE WIND WASHER DOES NOT FUNCTION)...12101
TROUBLESHOOTING CODE [E-9] (THE HEADLAMP (LO BEAM) DOES NOT LIGHT ON)...12104
TROUBLESHOOTING CODE [E-10] (THE HEADLAMP (HI BEAM) DOES NOT FUNCTION)...12107
TROUBLESHOOTING CODE [E-11] (THE CLEARANCE LAMP DOES NOT LIGHT ON (SMALL LAMP))...12109
TROUBLESHOOTING CODE [E-12] (THE TURN SIGNAL DOES NOT BLINK)...12110
TROUBLESHOOTING CODE [E-13] (THE HORN DOES NOT SOUND)...12112
TROUBLESHOOTING CODE [E-14] (THE AIR CONDITIONER DOES NOT WORK OR DOES NOT STOP)...12114
TROUBLESHOOTING OF ENGINE (S MODE)...12117
METHOD OF USING TROUBLESHOOTING CHARTS...12118
S-1 STARTING PREFORMANCE IS POOR (STARTING ALWAYS TAKES TIME)...12122
S-2 ENGINE DOES NOT START...12123
(1) ENGINE DOES NOT TURN...12123
(2) ENGINE TURN BUT NO EXHAUST SMOKE COMES OUT (FUEL IS BEING INJECTED)...12124
(3) EXHAUST SMOKE COMES OUT BUT ENGINE DOES NOT START (FUEL IS BEING INJECTED)...12125
S-3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR)...12126
S-4 ENGINE STOPS DURING OPERATIONS...12127
S-5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING)...12128
S-6 ENGINE LACKS OUTPUT (OR LACKS POWER)...12129
S-7 EXHAUST SMOKE IS BLACK (INCOMPLATE COMBUSTION)...12130
S-8 OIL CONSUMPTION IS ESCESSIVE (OR EXHAUST SMOKE IS BLUE)...12131
S-9 OIL BECOMES CONTAMINATED QUICKLY...12132
S-10 FUEL CONSUMPTION IS EXCESSIVE...12133
S-11 OIL IS IN COOLING COOLANT, OR COOLANT SPURTS BACK, OR COOLANT LEVEL GOES DOWN...12134
S-12 OIL PRESSURE CAUTION LAMP LIGHTS UP (DROP IN OIL PRESSURE)...12135
S-13 OIL LEVEL RISES (WATER, FUEL IN OIL)...12136
S-14 COOLANT TEMPERATURE BECOMES TOO HIGH (OVERHEATING)...12137
S-15 ABNORMAL NOISE IS MADE...12138
S-16 VIBRATION IS EXCESSIVE...12139
30 DISASSEMBLY AND ASSEMBLY...12141
METHOD OF USING MANUAL...12142
PRECAUTIONS WHEN CARRYING OUT OPERATION...12144
SPECIAL TOOL LIST...12147
REMOVAL AND INSTALLATION OF ENGINE ASSEMBLY...12159
REMOVAL AND INSTALLATION OF CYLINDER HEAD ASSEMBLY...12163
REMOVAL AND INSTALLATION OF RADIATOR AND FAN MOTOR ASSEMBLY...12168
REMOVAL AND INSTALLATION OF AFTERCOOLER ASSEMBLY...12170
REMOVAL AND INSTALLATION OF FUEL INJECTION PUMP...12170
REMOVAL AND INSTALLATION OF NOZZLE HOLDER ASSEMBLY...12173
REMOVAL AND INSTALLATION OF FAN AND MOTOR ASSEMBLY...12175
REMOVAL AND INSTALLATION OF FUEL TANK ASSEMBLY...12176
REMOVAL AND INSTALLATION OF PARKING BRAKE DISC PLATE...12178
REMOVAL AND INSTALLATION OF TORQUE CONVERTER AND TRANSMISSION ASSEMBLY...12181
DISASSEMBLY AND ASSEMBLY OF TRANSMISSION ASSEMBLY...12185
DISASSEMBLY AND ASSEMBLY OF TRANSMISSION CLUTCH PACK ASSEMBLY...12197
DISASSEMBLY AND ASSEMBLY OF PARKING BRAKE ASSEMBLY...12212
DISASSEMBLY AND ASSEMBLY OF TORQUE CONVERTER ASSEMBLY (STANDARD SPECIFICATION)...12220
DISASSEMBLY AND ASSEMBLY OF TORQUE CONVERTER ASSEMBLY (LOCK-UP SPECIFICATION)...12224
REMOVAL AND INSTALLATION OF REAR AXLE ASSEMBLY...12230
REMOVAL AND INSTALLATION OF FRONT AXLE ASSEMBLY...12233
DISASSEMBLY AND ASSEMBLY OF AXLE HOUSING ASSEMBLY...12234
DISASSEMBLY AND ASSEMBLY OF DIFFERENTIAL ASSEMBLY...12242
REMOVAL AND INSTALLATION OF CENTER HINGE PIN...12261
REMOVAL AND INSTALLATION OF CAB ASSEMBLY...12268
REMOVAL AND INSTALLATION OF CAB AND FLOOR FRAME ASSEMBLY...12269
REMOVAL AND INSTALLATION OF TRANSMISSION OF OPERATOR'S CAB GLASS (STUCK GLASS)...12272
REMOVAL AND INSTALLATION OF TRANSMISSION, WORK EQUIPMENT, AND PPC PUMP ASSEMBLY...12280
REMOVAL AND INSTALLATION OF STEERING, SWITCHING, AND FAN PUMP ASSEMBLY...12281
REMOVAL AND INSTALLATION OF STEERING DEMAND VALVE ASSEMBLY...12282
REMOVAL AND INSTALLATION OF STEERING VALVE OIL SEAL...12283
REMOVAL AND INSTALLATION OF E.C.S.S. VALVE ASSEMBLY...12285
REMOVAL AND INSTALLATION OF WORK EQUIPMENT VALVE ASSEMBLY...12286
DISASSEMBLY AND ASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY (STEERING, LIFT, AND BUCKET CYLINDER ASSEMBLY)...12288
REMOVAL AND INSTALLATION OF HYDRAULIC TANK ASSEMBLY...12296
REMOVAL AND INSTALLATION OF WORK EQUIPMENT ASSEMBLY...12298
REMOVAL AND INSTALLATION OF COUNTER WEIGHT...12302
REMOVAL AND INSTALLATION OF AIR CONDITIONER UNIT ASSEMBLY...12303
REMOVAL AND INSTALLATION OF AIR CONDITIONER COMPRESSOR ASSEMBLY...12306
DISASSEMBLY, ASSEMBLY OF OPERATOR'S SEAT ASSEMBLY...12307
90 OTHERS...12317
POWER TRAIN OIL CIRCUIT DIAGRAM (WITHOUT TORQUE CONVERTER LOCKUP CLUTCH)...12319
POWER TRAIN OIL CIRCUIT DIAGRAM (WITH TORQUE CONVERTER LOCKUP CLUTCH)...12321
BRAKE OIL CIRCUIT DIAGRAM...12323
WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM...12325
WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM (FOR ELECTRIC WORK EQUIPMENT LEVER)...12326
ELECTRICAL CIRCUIT DIAGRAM...12327
1/8 (1/4)...12327
1/8 (2/4)...12328
1/8 (3/4)...12329
1/8 (4/4)...12330
2/8 (1/4)...12331
2/8 (2/4)...12332
2/8 (3/4)...12333
2/8 (4/4)...12334
3/8...12335
4/8...12336
5/8...12337
6/8...12338
7/8...12339
8/8...12340
SEBMU4230106 - Wheel Loader WA380-1 Shop Manual...12341
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sebmu4230106 a3 tek..pdf...0
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SEN00769-03 - Wheel Loader WA380-6 Shop Manual...13417
COVER...13417
00 Index and foreword...13419
Index...13419
Composition of shop manual...13420
Table of contents...13422
Foreword and general information...13435
Safety notice...13436
How to read the shop manual...13441
Explanation of terms for maintenance standard...13443
Handling electric equipment and hydraulic component...13445
How to read electric wire code...13457
Precautions when carrying out operation...13460
Method of disassembling and connecting push-pull type coupler...13463
Standard tightening torque table...13466
Conversion table...13470
01 Specification...13477
Specification and technical data...13477
Specification and technical data...13479
Specification dimension drawing...13479
Specifications...13480
Weight table...13484
Table of fuel, coolant and lubricants...13486
10 Structure, function and maintenance standard...13489
Engine and cooling system...13489
Engine and cooling system...13490
Engine mount and transmission mount...13490
Cooling system...13491
Cooling fan pump...13492
Cooling fan motor...13500
Power train...13507
Power train...13509
Power train...13509
Power train system diagram...13510
Drive shaft...13512
Power train piping diagram...13513
Torque converter...13514
Transmission...13522
Flow control valve...13539
Valve assembly...13540
ECMV...13541
Main relief valve and torque converter relief valve...13548
Axle...13550
Front axle...13550
Rear axle...13551
Differential...13552
Front differential...13552
Rear differential...13553
Limited slip differential...13557
Final drive...13564
Steering system...13569
Steering system...13570
Steering piping diagram...13570
Steering column...13571
Steering pump...13572
Steering valve...13583
Orbit-roll valve...13598
Stop valve...13602
Steering relief valve...13603
Steering cylinder...13604
Emergency steering motor...13606
Emergency steering pump...13607
Brake system...13609
Brake system...13610
Brake piping diagram...13610
Charge valve...13611
Brake valve...13618
Accumulator (for brake)...13623
Brake...13624
Parking brake control...13629
Parking brake...13630
Parking brake solenoid valve...13632
Emergency parking brake release valve...13634
Undercarriage and frame...13637
Undercarriage and frame...13638
Axle mount and center hinge pin...13638
Tires...13642
Hydraulic system, Part 1...13645
Hydraulic system, Part 1...13646
Hydraulic piping diagram...13646
Work equipment control lever linkage...13649
Hydraulic tank...13650
Breather...13651
Power train pump...13652
Work equipment pump...13653
Work equipment control valve...13664
CLSS...13678
Outline of CLSS...13678
Basic principle...13679
Each function and operation of each valve...13682
Hydraulic circuit diagram and names of valves...13682
Area ratio of pressure compensation valve...13692
Lift arm regeneration circuit...13694
Variable lift check valve...13696
ECSS control valve...13697
Restriction on lift arm raise stroke...13698
Accumulator charge valve...13700
Hydraulic system, Part 2...13705
Hydraulic system, Part 2...13706
PPC valve...13706
Stabilizer valve...13712
Accumulator (for PPC circuit)...13717
Accumulator (for ECSS)...13718
Work equipment...13721
Work equipment...13722
Work equipment linkage...13722
Bucket...13724
Bucket positioner and boom kick-out...13725
Work equipment cylinder...13731
Cab and its attachments...13733
Cab and its attachments...13735
Cab...13735
Air conditioner...13736
Air conditioner piping diagram...13736
Air conditioner unit...13739
Blower and intake unit...13741
Compressor...13742
Condenser...13743
Receiver...13744
Air conditioner panel...13746
Electrical system, Part 1...13749
Electrical system, Part 1...13750
Machine monitor system...13750
System circuit diagram...13752
Machine monitor...13755
List of items displayed on monitor...13756
Machine monitor operation switch...13760
Setting of machine monitor...13761
Character display...13762
Operator mode functions...13763
Service mode functions...13766
Input and output signals...13771
Electrical system, Part 2...13777
Electrical system, Part 2...13778
Electrical system (Transmission controller system)...13778
Transmission controller...13810
Electrical system, Part 3...13813
Electrical system, Part 3...13813
Electric transmission control...13814
Kickdown switch and hold switch...13818
KOMTRAX terminal system...13820
Engine starting circuit...13822
Engine stopping circuit...13824
Preheating circuit...13825
Engine power mode selector circuit...13826
Engine output derating function...13827
Parking brake circuit...13828
Automatic warm-up function...13827
Sensor...13830
20 Standard value table...13839
Standard service value table...13839
Standard service value table...13840
Standard service value table for engine...13840
Standard service value table for chassis...13841
30 Testing and adjusting...13849
Testing and adjusting, Part 1...13849
Testing and adjusting, Part 1...13851
Tools for testing, adjusting, and troubleshooting...13851
Measuring engine speed...13854
Measuring exhaust gas color...13856
Adjusting valve clearance...13858
Measuring compression pressure...13860
Measuring blow-by pressure...13863
Measuring engine oil pressure...13864
Measuring intake air (boost) pressure...13865
Handling fuel system equipment...13866
Releasing residual pressure in fuel system...13866
Measuring fuel pressure...13867
Measuring fuel return rate and leakage...13869
Bleeding air from fuel circuit...13872
Testing leakage in fuel system...13874
Handling reduced cylinder mode operation...13875
Handling no-injection cranking operation...13875
Handling controller voltage circuit...13876
Testing and adjusting air conditioner compressor belt tension...13877
Adjusting transmission speed sensor...13878
Measuring directional lever...13879
Measuring and adjusting power train oil pressure...13880
Procedure for flushing torque converter and transmission hydraulic circuit...13895
Method of moving machine when transmission valve is broken...13896
Testing and adjusting steering stop valve...13898
Testing and adjusting steering wheel...13900
Testing steering oil pressure...13902
Bleeding air from steering circuit...13905
Testing and adjusting, Part 2...13907
Testing and adjusting, Part 2...13909
Testing hydraulic drive fan...13909
Bleeding air from hydraulic drive fan circuit...13911
Measuring brake pedal...13913
Measuring brake performance...13914
Testing and adjusting accumulator charge pressure...13915
Testing wheel brake oil pressure...13916
Measuring wear of wheel brake disc...13918
Bleeding air from wheel brakecircuit...13919
Releasing residual pressure in brake accumulator circuit...13920
Testing parking brake performance...13921
Measuring parking brake oil pressure...13922
Testing wear of parking brake disc...13924
Method of releasing parking brake manually...13925
Measuring and adjusting work equipment control lever...13926
Measuring and adjusting work equipment PPC oil pressure...13927
Measuring and adjusting work equipment oil pressure...13930
Bleeding air from work equipment circuit...13934
Releasing residual pressure in work equipment circuit...13935
Testing and adjusting bucket positioner...13936
Testing and adjusting boom kickout...13938
Checking proximity switch operation pilot lamp...13939
Procedure for testing diodes...13940
Preparation work for troubleshooting for electric system...13941
How to start operation of KOMTRAX terminal...13946
Lamp display of KOMTRAX terminal...13951
Adjusting machine monitor...13954
Adjusting replaced, reassembled or added sensor, controller, etc. with machine monitor...13955
Testing and adjusting, Part 3...13959
Testing and adjusting, Part 3...13960
Special functions of machine monitor (EMMS)...13960
Pm-click inspection table...14019
40 Troubleshooting...14023
General information on troubleshooting...14023
General information on troubleshooting...14024
Points to remember when troubleshooting...14024
Sequence of events in troubleshooting...14025
Testing before troubleshooting...14026
Classification and procedures of troubleshooting...14027
Connection table for connector pin numbers...14030
T-branch box and T-branch adapter table...14053
Troubleshooting by failure code (Display of code), Part 1...14057
Troubleshooting by failure code (Display of code), Part 1...14059
Failure codes list...14059
Before carrying out troubleshooting for electrical system...14066
Information contained troubleshooting table...14069
Failure code [1500L0] (TORQFLOW transmission: Double meshing)...14071
Failure code [15SAL1] (ECMV F clutch: When command current is OFF, fill signal is ON)...14072
Failure code [15SALH] (ECMV F clutch: When command current is ON, fill signal is OFF)...14074
Failure code [15SBL1] (ECMV R clutch: When command current is OFF, fill signal is ON)...14076
Failure code [15SBLH] (ECMV R clutch: When command current is ON, fill signal is OFF)...14078
Failure code [15SEL1] (ECMV 1st clutch: When command current is OFF, fill signal is ON)...14080
Failure code [15SELH] (ECMV 1st clutch: When command current is ON, fill signal is OFF)...14082
Failure code [15SFL1] (ECMV 2nd clutch: When command current is OFF, fill signal is ON)...14084
Failure code [15SFLH] (ECMV 2nd clutch: When command current is ON, fill signal is OFF)...14086
Failure code [15SGL1] (ECMV 3rd clutch: When command current is OFF, fill signal is ON)...14088
Failure code [15SGLH] (ECMV 3rd clutch: When command current is ON, fill signal is OFF)...14090
Failure code [15SHL1] (ECMV 4th clutch: When command current is OFF, fill signal is ON)...14092
Failure code [15SHLH] (ECMV 4th clutch: When command current is ON, fill signal is OFF)...14094
Failure code [2F00MA] (Parking brake: Malfunction)...14096
Troubleshooting by failure code (Display of code), Part 2...14099
Troubleshooting by failure code (Display of code), Part 2...14102
Failure code [2G43ZG] (Accumulator: Low oil pressure)...14102
Failure code [AA1ANX] (Air cleaner: Clogging)...14104
Failure code [AB00L6] (Alternator: Signal disagrees with operating state of engine)...14106
Failure code [AB00MA] (Alternator: Malfunction)...14108
Failure code [B@BAZG] (Rotation derating by low engine oil pressure)...14110
Failure code [B@BAZK] (Engine oil: Low level)...14111
Failure code [B@BCNS] (Coolant: Overheating)...14112
Failure code [B@BCZK] (Coolant: Low level)...14114
Failure code [B@C7NS] (Brake oil: Overheating)...14116
Failure code [b@CENS] (Torque converter oil: Overheating)...14118
Failure code [B@CENS] (Torque converter oil: Overheating)...14120
Failure code [B@HANS] (Hydraulic oil: Overheating)...14122
Failure code [CA111] (Abnormality in engine controller)...14124
Failure code [CA115] (Engine Ne or Bkup speed sensor error)...14125
Failure code [CA122] (Charge pressure sensor high error)...14126
Failure code [CA123] (Charge pressure sensor low error)...14128
Failure code [CA131] (Throttle sensor high error)...14130
Failure code [CA132] (Throttle sensor low error)...14132
Failure code [CA144] (Coolant sensor high error)...14134
Failure code [CA145] (Coolant sensor low error)...14136
Failure code [CA153] (Charge temperature sensor high error)...14138
Failure code [CA154] (Charge temperature sensor low error)...14140
Failure code [CA155] (Derating of speed by abnormally high charge temperature)...14142
Failure code [CA187] (Sensor power supply 2 low error)...14144
Failure code [CA221] (Atmospheric pressure sensor high error)...14146
Failure code [CA222] (Atmospheric sensor low error)...14148
Failure code [CA227] (Sensor power supply 2 high error)...14150
Troubleshooting by failure code (Display of code), Part 3...14153
Troubleshooting by failure code (Display of code), Part 3...14155
Failure code [CA234] (Engine overspeed)...14155
Failure code [CA238] (Ne speed sensor power supply error)...14156
Failure code [CA271] (PCV1 Short circuit)...14157
Failure code [CA272] (PCV1 Disconnection)...14158
Failure code [CA322] (Injector #1 (L/B #1) open/short error)...14160
Failure code [CA323] (Injector #5 (L/B #5) open/short error)...14162
Failure code [CA324] (Injector #3 (L/B #3) open/short error)...14164
Failure code [CA325] (Injector #6 (L/B #6) open/short error)...14166
Failure code [CA331] (Injector #2 (L/B #2) open/short error)...14168
Failure code [CA332] (Injector #4 (L/B #4) open/short error)...14170
Failure code [CA342] (Calibration code inconsistency)...14172
Failure code [CA351] (Injectors drive circuit error)...14173
Failure code [CA352] (Sensor power supply 1 low error)...14175
Failure code [CA386] (Sensor power supply 1 high error)...14177
Failure code [CA428] (Abnormally high level in water sensor)...14178
Failure code [CA429] (Abnormally low level in water sensor)...14180
Failure code [CA431] (Idle validation switch error)...14182
Failure code [CA432] (Idle validation action error)...14184
Failure code [CA435] (Engine oil pressure switch error)...14186
Failure code [CA441] (Battery voltage low error)...14187
Failure code [CA442] (Battery voltage high error)...14190
Failure code [CA449] Common rail pressure high error 2...14192
Failure code [CA451] (Common rail pressure sensor high error)...14193
Failure code [CA452] (Common rail pressure sensor low error)...14195
Failure code [CA488] (Derating of torque by abnormally high charge temperature)...14197
Failure code [CA553] (Common rail pressure high error 1)...14198
Failure code [CA559] (Supply pump pressure very low error)...14199
Failure code [CA689] (Engine Ne speed sensor error)...14200
Failure code [CA731] (Engine Bkup speed sensor phase error)...14202
Failure code [CA757] (All continuous data lost error)...14203
Failure code [CA778] (Engine Bkup speed sensor error)...14206
Failure code [CA1117] (Partial engine controller data loss error)...14208
Failure code [CA1633] (KOMNET datalink timeout error)...14211
Troubleshooting by failure code (Display of code), Part 4...14215
Troubleshooting by failure code (Display of code), Part 4...14217
Failure code [CA2185] (Throttle sensor supply voltage high error)...14217
Failure code [CA2186] (Throttle sensor power supply low error)...14218
Failure code [CA2249] (Supply pump pressure very low error 2)...14219
Failure code [CA2311] (Abnormality in IMV solenoid)...14220
Failure code [CA2555] (Intake heater relay disconnection error)...14222
Failure code [CA2556] (Intake heater relay short circuit error)...14224
Failure code [D150KA] (Emergency steering relay: Disconnection)...14226
Failure code [D150KB] (Emergency steering relay: Short circuit)...14228
Failure code [D150KY] (Emergency steering relay: Short circuit with power supply line)...14230
Failure code [D160KA] (Backup lamp relay: Disconnection)...14232
Failure code [D160KB] (Backup lamp relay: Short circuit)...14234
Failure code [D191KA] (Joystick steering neutral safety relay: Disconnection)...14236
Failure code [D191KB] (Joystick steering neutral safety relay: Short circuit)...14238
Failure code [D191KY] (Joystick steering neutral safety relay: Short circuit with power supply line)...14240
Failure code [D192KA] (ECSS solenoid: Disconnection)...14242
Failure code [D192KB] (ECSS solenoid: Short circuit)...14243
Failure code [D192KY] (ECSS solenoid: Short circuit with power supply line)...14244
Failure code [D5ZHKA] (Terminal C signal: Disconnection)...14245
Failure code [D5ZHKB] (Terminal C signal: Short circuit)...14249
Failure code [D5ZHL6] (Terminal C signal: Signal does not match engine running or stopped state)...14253
Failure code [DA80L4] (Auto grease controller: ON/OFF signals disagree)...14256
Failure code [DAF3KK] (Machine monitor: Low source voltage (input))...14258
Failure code [DAF5KP] (Machine monitor: Low output voltage)...14260
Failure code [DAFRKR] (CAN communication with machine monitor: Defective communication (Abnormality in target component system))...14263
Failure code [DAQ0KK] (Transmission controller: Low source voltage)...14265
Failure code [DAQ0KT] (Transmission controller: Abnormality incontroller)...14267
Failure code [DAQ2KK] (Transmission controller load power supply line: Low source voltage (input))...14268
Failure code [DAQ9KQ] (Transmission controller model selection: Disagreement of model selection signals)...14270
Troubleshooting by failure code (Display of code), Part 5...14273
Troubleshooting by failure code (Display of code), Part 5...14275
Failure code [DAQRKR] (CAN communication with transmission controller: Defective communication (Abnormality in target component system))...14275
Failure code [DAQRMA] (Transmission controller option setting:Malfunction)...14277
Failure code [DB2RKR] (CAN communication with engine controller: Defective communication (Abnormality in target component system)...14278
Failure code [DB99KQ] (Work equipment controller model selection: Disagreement in model selection signals)...14281
Failure code [DB9RKR] CAN communication with work equipment controller: Defective communication (Abnormality in target component system))...14282
Failure code [DB9RMA] (Work equipment controller option setting: Malfunction)...14284
Failure code [DD15LD] switch (Panel switch 1): Switch is kept pressed for long time...14286
Failure code [DD16LD] switch (Panel switch 2): Switch is kept pressed for long time...14288
Failure code [DD17LD] < switch (Panel switch 3): Switch is kept pressed for long time...14290
Failure code [DD17LD] < switch (Panel switch 3): Switch is kept pressed for long time...14292
Failure code [DD1CLD] Load meter subtotal switch: Switch is keptpressed for long time...14294
Failure code [DD1FLD] Load meter mode selector switch (A/B): Switchis kept pressed for long time...14296
Failure code [DD1GLD] Load meter mode selector switch (+/–): Switch is kept pressed for long time...14298
Failure code [DD1HLD] (Load meter display selector switch: Switch is kept pressed for long time)...14300
Failure code [DD1NLD] (Fan reverse switch: Switch is kept pressed for long time)...14302
Failure code [DD1NL4] (Fan automatic reverse switch: Switch is kept pressed for long time)...14304
Failure code [DDB6L4] (Parking brake switch (Neutralizer): ON/OFF signals disagree)...14306
Troubleshooting by failure code (Display of code), Part 6...14311
Troubleshooting by failure code (Display of code), Part 6...14314
Failure code [DDK3KA] (Right FNR switch: Disconnection)...14314
Failure code [DDK6KA] (FNR lever switch: Disconnection)...14317
Failure code [DDK6KB] (FNR lever switch: Short circuit)...14320
Failure code [DDT0L4] (Shift mode selector switch: ON/OFF signals disagree)...14322
Failure code [DDT4LD] (Transmission cut-off set switch: Switch is kept pressed for long time)...14324
Failure code [DDW9LD] (Kick-down switch: Switch is kept pressed for long time)...14326
Failure code [DDWLLD] (Hold switch: Switch is kept pressed for long time)...14328
Failure code [DDY0LD] (Load meter cancel switch: Switch is kept pressed for long time)...14330
Failure code [DF10KA] (Transmission shift lever switch: Disconnected)...14332
Failure code [DF10KB] (Transmission shift lever switch: Short circuit)...14336
Failure code [DGF1KA] (Transmission oil temperature sensor: Disconnected)...14338
Failure code [DGF1KB] (Transmission oil temperature sensor: Short circuit)...14340
Failure code [DGH2KX] (Hydraulic oil temperature sensor: Out of input signal range)...14342
Failure code [DGR2KA] (Rear brake oil temperature sensor: Disconnected)...14344
Failure code [DGR2KX] (Rear brake oil temperature sensor: Out of input signal range)...14346
Failure code [DGT1KX] (Torque converter oil temperature sensor: Out of input signal range)...14348
Troubleshooting by failure code (Display of code), Part 7...14351
Troubleshooting by failure code (Display of code), Part 7...14352
Failure code [DHPCKX] (Lift arm cylinder bottom pressure sensor: Out of input signal range)...14352
Failure code [DHPDKX] (Lift arm cylinder head pressure sensor: Out of input signal range)...14354
Failure code [DHT1KX] (Transmission cut-off pressure sensor: Out of input signal range)...14356
Failure code [DHT8KA] (Steering pump pressure sensor: Disconnection)...14358
Failure code [DHT8KB] (Steering pump pressure sensor: Short circuit)...14360
Troubleshooting by failure code (Display of code), Part 8...14363
Troubleshooting by failure code (Display of code), Part 8...14364
Failure code [DLT3KA] (Transmission output shaft speed sensor: Disconnection)...14364
Failure code [DLT3LC] (Transmission output shaft speed sensor: Out of input signal range)...14366
Failure code [DT20KB] (Transmission cut-off indicator lamp: Short circuit)...14368
Failure code [DV00KB] (Alarm buzzer: Short circuit)...14370
Troubleshooting by failure code (Display of code), Part 9...14373
Troubleshooting by failure code (Display of code), Part 9...14374
Failure code [DW7BKA] (Fan reverse solenoid: Disconnection)...14374
Failure code [DW7BKB] (Fan reverse solenoid: Short circuit)...14375
Failure code [DW7BKY] (Fan reverse solenoid: Short circuit with power supply line)...14376
Failure code [DX16KA] (Fan pump EPC solenoid: Disconnection)...14378
Failure code [DX16KB] (Fan pump EPC solenoid: Short circuit)...14379
Failure code [DX16KY] (Fan pump EPC solenoid: Short circuit with power supply line)...14380
Failure code [DXH1KA] (Lockup ECMV solenoid: Disconnection)...14382
Failure code [DXH1KB] (Lockup ECMV solenoid: Short circuit)...14384
Failure code [DXH1KY] (Lockup ECMV solenoid: Short circuit with power supply line)...14386
Failure code [DXH4KA] (1st clutch ECMV solenoid: Disconnection)...14388
Failure code [DXH4KB] (1st clutch ECMV solenoid: Short circuit)...14390
Troubleshooting by failure code (Display of code), Part 10...14393
Troubleshooting by failure code (Display of code), Part 10...14396
Failure code [DXH4KY] (1st clutch ECMV solenoid: Short circuit with power supply line)...14396
Failure code [DXH5KA] (2nd clutch ECMV solenoid: Disconnection)...14398
Failure code [DXH5KB] (2nd clutch ECMV solenoid: Short circuit)...14400
Failure code [DXH5KY] (2nd clutch ECMV solenoid: Short circuit with power supply line)...14402
Failure code [DXH6KA] (3rd clutch ECMV solenoid: Disconnection)...14404
Failure code [DXH6KB] (3rd clutch ECMV solenoid: Short circuit)...14406
Failure code [DXH6KY] (3rd clutch ECMV solenoid: Short circuit with power supply line)...14408
Failure code [DXH7KA] (R clutch ECMV solenoid: Disconnection)...14410
Failure code [DXH7KB] (R clutch ECMV solenoid: Short circuit)...14412
Failure code [DXH7KY] (R clutch ECMV solenoid: Short circuit with power supply line)...14414
Failure code [DXH8KA] (F clutch ECMV solenoid: Disconnection)...14416
Failure code [DXH8KB] (F clutch ECMV solenoid: Short circuit)...14418
Failure code [DXH8KY] (F clutch ECMV solenoid: Short circuit with power supply line)...14420
Failure code [DXHHKA] (4th clutch ECMV solenoid: Disconnection)...14422
Failure code [DXHHKB] (4th clutch ECMV solenoid: Short circuit)...14424
Failure code [DXHHKY] (4th clutch ECMV solenoid: Short circuit with power supply line)...14426
Troubleshooting of electrical system (E-mode)...14429
Troubleshooting of electrical system (E-mode)...14431
Before carrying out troubleshooting for electrical system...14431
Information in troubleshooting table...14434
E-1 Engine does not start...14435
E-2 Wiper does not operate...14442
E-3 Windshield washer does not operate...14446
E-4 Headlamp, clearance lamp, tail lamp, and license lamp do not light up or go off...14449
E-5 Working lamp does not light up or go off...14457
E-6 Turn signal lamp and hazard lamp do not light up or go off...14462
E-7 Brake lamp does not light or it keeps lighting up...14468
E-8 Backup lamp does not light or it keeps lighting up...14470
E-9 Backup buzzer does not sound or it keeps sounding...14472
E-10 Horn does not sound or it keeps sounding...14474
E-11 Alarm buzzer does not sound or it keeps sounding...14476
E-12 Air conditioner does not operate or stop...14478
E-13 The KOMTRAX system does not work properly...14481
Troubleshooting of hydraulic and mechanical system (H-mode)...14485
Troubleshooting of hydraulic and mechanical system (H-mode)...14487
Method of using troubleshooting chart...14487
Table of failure modes and causes...14490
H-1 The machine does not start...14494
H-2 Torque converter lockup is not switched off (engine stalls) [Machine with lockup clutch (if equipped)]...14496
H-3 Torque converter lockup is not switched on [Machine with lockup clutch (if equipped)]...14497
H-4 The travel speed is slow, the thrusting force is weak, the uphill traveling power is weak, and the gear is not shifted...14498
H-5 Shocks are large at the times of starting and shifting gear...14500
H-6 Time lag is large at the times of starting and shifting gear...14502
H-7 The torque converter oil temperature is high...14504
H-8 Steering does not turn...14505
H-9 Steering does not turn [Machine with joystick steering (if equipped)]...14506
H-10 Steering response is low...14507
H-11 Turning, response of steering is poor [machine with joystick steering (if equipped)]...14508
H-12 Steering is heavy...14509
H-13 When machine turns, it shakes or makes large shocks...14510
H-14 When machine turns, it shakes or makes large shocks [machine with joystick steering (if equipped)]...14511
H-15 The wheel brake does not work or does not work well...14512
H-16 The wheel brake is not released or it drags...14513
H-17 The parking brake does not work or does not work well...14514
H-18 The parking brake is not released or it drags (including emergency release system)...14515
H-19 Lift arm does not rise...14516
H-20 Lift arm speed is low or rising force of lift arm is insufficient...14517
H-21 When rising, the lift arm comes to move slowly at specific height...14518
H-22 The lift arm cylinder cannot hold down the bucket (Bucket floats)...14518
H-23 Hydraulic drifts of the lift arm is large...14518
H-24 The lift arm wobbles during operation...14518
H-25 Bucket does not tilt back...14519
H-26 Bucket speed is low or tilting back force is insufficient...14520
H-27 The bucket comes to operate slowly in the midst of tilting-back...14521
H-28 The bucket cylinder cannot hold down the bucket...14521
H-29 Hydraulic drifts of the bucket is large...14521
H-30 The bucket wobbles during travel with cargo (The work equipment valve is set to “HOLD”)...14521
H-31 Lift arm and bucket control levers do not move smoothly and are heavy...14522
H-32 During operation of the machine, engine speed lowers remarkably or engine stalls...14523
H-33 Large shock is made when work equipment starts and stops...14523
H-34 When work equipment circuit is relieved singly, other work equipment moves...14523
H-35 ECSS does not operate, and pitching, bouncing occur...14524
Troubleshooting of engine (S-mode)...14527
Troubleshooting of engine (S-mode)...14529
Method of using troubleshooting chart...14529
S-1 Engine does not start easily...14532
S-2 Engine does not start...14533
S-3 Engine does not pick up smoothly...14536
S-4 Engine stops during operations...14537
S-5 Engine does not rotate smoothly...14538
S-6 Engine lacks output (or lacks power)...14539
S-7 Exhaust smoke is black (Incomplete combustion)...14540
S-8 Oil consumption is excessive (or exhaust smoke is blue)...14541
S-9 Engine oil becomes contaminated quickly...14542
S-10 Fuel consumption is excessive...14543
S-11 Coolant contains oil (blows back or reduces)...14544
S-12 Oil pressure drops...14545
S-13 Oil level rises (Water, fuel in oil)...14546
S-14 Coolant temperature rises too high (Overheating)...14547
S-15 Abnormal noise is made...14548
S-16 Vibration is excessive...14549
50 Disassembly and assembly...14551
General information on disassembly and assembly...14551
General information on disassembly and assembly...14552
How to read this manual...14552
Coating materials list...14554
Special tools list...14557
Engine and cooling system...14561
Engine and cooling system...14562
Removal and installation of fuel supply pump assembly...14562
Removal and installation of fuel injector assembly...14564
Removal and installation of cylinder head assembly...14569
Removal and installation of engine hood...14578
Removal and installation of radiator assembly...14580
Removal and installation of air aftercooler...14582
Removal and installation of hydraulic oil cooler assembly...14584
Removal and installation of engine assembly...14586
Removal and installation of cooling fan and fan motor assembly...14591
Removal and installation of fuel tank assembly...14594
Power train...14597
Power train...14598
Removal and installation of torque converter and transmission assembly...14598
Disassembly and assembly of torque converter assembly (Standard specification)...14604
Disassembly and assembly of torque converter assembly (Lockup specification)...14608
Disassembly and assembly of transmission assembly...14614
Disassembly and assembly of transmission clutch pack assembly...14629
Disassembly and assembly of parking brake assembly...14645
Removal and installation of front axle assembly...14650
Removal and installation of rear axle assembly...14652
Disassembly and assembly of axle housing...14655
Disassembly and assembly of differential assembly...14664
Steering system...14679
Steering system...14680
Removal and installation of steering demand valve assembly...14680
Brake system...14683
Brake system...14684
Removal and installation of parking brake discs and plates...14684
Undercarriage and frame...14687
Undercarriage and frame...14688
Removal and installation of center hinge pin...14688
Removal and installation of counterweight...14696
Hydraulic system...14699
Hydraulic system...14700
Removal and installation of work equipment control valve assembly...14700
Removal and installation of power train pump and work equipment pump assembly...14702
Removal and installation of steering pump and cooling fan pump assembly...14703
Removal and installation of hydraulic tank assembly...14704
Work equipment...14709
Work equipment...14710
Removal and installation of work equipment assembly...14710
Disassembly and assembly of hydraulic cylinder assembly...14714
Cab and its attachments...14723
Cab and its attachments...14724
Removal and installation of operator's cab and floor frame assembly...14724
Removal and installation of operator's cab glass (stuck glass)...14727
Removal and installation of air conditioner unit assembly...14735
Electrical system...14739
Electrical system...14740
Removal and installation of engine controller assembly...14740
90 Diagrams and drawings...14743
Hydraulic diagrams and drawings...14743
Hydraulic diagrams and drawings...14744
Power train hydraulic circuit diagram...14744
Hydraulic circuit diagram...14747
Electrical diagrams and drawings...14750
Electrical diagrams and drawings...14752
Electrical circuit diagram (1/2)...14752
Electrical circuit diagram (2/2)...14753
Connector arrangement diagram...14754
SEN05650-03 - Wheel Loader WA380-7 Shop Manual...14757
COVER...14757
00 Index and foreword ...14759
Index ...14760
Foreword, safety and general information ...14776
Important safety notice ...14776
How to read the shop manual ...14783
Explanation of terms for maintenance standard ...14785
Handling equipment of fuel system devices ...14787
Handling of intake system parts ...14788
Handling of hydraulic equipment ...14789
Method of disconnecting and connecting of push-pull type coupler ...14791
Handling of electrical equipment ...14794
How to read electric wire code ...14802
Precautions when performing operation ...14805
Practical use of KOMTRAX ...14809
Standard tightening torque table ...14810
List of abbreviation ...14814
Conversion table ...14819
01 Specification ...14825
Table of contents ...14826
Specifications ...14827
Specification drawing ...14827
Specification ...14829
Weight table ...14835
Table of fuel, coolant and lubricants ...14837
10 Structure and function ...14839
Table of contents ...14840
Engine and cooling system ...14842
Engine related parts ...14842
KVGT ...14844
EGR system piping drawing ...14851
EGR system circuit diagram ...14853
EGR valve ...14855
EGR cooler ...14857
KCCV layout drawing ...14858
KCCV ventilator ...14860
KDPF ...14862
Cooling system ...14866
Cooling fan pump ...14869
Cooling fan motor ...14878
Power train ...14886
Power train system ...14886
Drive shaft ...14889
Power train piping drawing ...14890
Transmission control ...14891
Torque converter ...14893
Transmission ...14898
Transmission control valve ...14917
Forward and reverse clutch ECMV and gear speed clutch ECMV ...14920
Lockup clutch ECMV ...14927
Main relief and torque converter relief valve ...14931
Axle ...14933
Differential ...14935
Limited slip differential ...14939
Final drive ...14943
Steering system ...14945
Layout of steering devices ...14945
Steering column ...14946
Steering pump ...14947
Steering valve ...14959
Orbit-roll valve ...14973
Stop valve ...14979
Emergency steering motor ...14980
Emergency steering pump ...14981
Brake system ...14982
Layout of brake parts ...14982
Charge valve ...14984
Brake valve ...14990
Accumulator (for brake) ...14994
Brake ...14995
Parking brake control ...14998
Parking brake ...14999
Parking brake solenoid valve ...15000
Parking brake emergency release valve ...15003
Undercarriage and frame ...15004
Axle mount and center hinge pin ...15004
Tire ...15005
Hydraulic system ...15007
Hydraulic component layout ...15007
Work equipment control ...15009
Hydraulic tank ...15011
Double type gear pump ...15013
Work equipment pump ...15014
Control valve ...15026
CLSS ...15036
Hydraulic circuit diagram and name of valves ...15040
Accumulator charge valve ...15055
Stabilizer valve ...15059
Work equipment lock solenoid valve ...15064
Accumulator (for PPC circuit) ...15065
Accumulator (for ECSS) ...15066
Work equipment ...15067
Work equipment linkage ...15067
Bucket ...15068
Bucket positioner and boom positioner ...15069
Cab and its attachments ...15070
ROPS cab ...15070
Electrical system ...15071
Engine control system ...15071
Preheating system ...15073
Engine power mode selector circuit ...15075
Engine output limit function ...15076
Automatic warm-up function ...15077
Parking brake control system ...15078
System operating lamp function ...15080
Battery disconnect switch function ...15082
Transmission controller system ...15084
Work equipment control system ...15119
Machine monitor system ...15140
Rear view monitor system ...15166
KOMTRAX system ...15169
System component parts ...15172
Sensor ...15205
20 Standard value tables ...15227
Table of contents ...15228
Standard service value table ...15229
Standard value table for engine ...15229
Standard value table for machine ...15231
30 Testing and adjusting ...15245
Table of contents ...15246
General information on testing and adjusting ...15248
Tools for testing and adjusting ...15248
Sketch of tools for testing and adjusting ...15253
Engine and cooling system ...15254
Testing engine speed ...15254
Measuring boost pressure ...15255
Testing exhaust gas temperature ...15257
Testing exhaust gas color ...15259
Testing and adjusting valve clearance ...15261
Measuring compression pressure ...15263
Testing blowby pressure ...15267
Testing engine oil pressure ...15269
Testing EGR valve and KVGT driving oil pressure ...15270
Testing fuel pressure ...15271
Testing fuel delivery, return and leakage ...15276
Bleeding air from fuel system ...15282
Testing fuel circuit for leakage ...15284
Handling cylinder cutout mode operation ...15285
Handling no injection cranking operation ...15286
Testing of KDPF and muffler stack for looseness and damage ...15287
Testing of installed condition of cylinder head and manifolds ...15288
Testing engine piping for damage and looseness ...15289
Testing and adjusting air conditioner compressor belt tension ...15290
Replacing alternator belt ...15291
Power train ...15292
Adjusting transmission output speed sensor ...15292
Adjusting transmission input speed sensor ...15293
Flushing procedure for torque converter and transmission hydraulic circuit ...15294
Retrieval of disabled machine due to transmission valve failure ...15295
Checking oil leakage from axle final drive ...15297
Testing drive shaft for looseness, backlash, and damage ...15298
Testing and adjusting power train oil pressure ...15299
Steering system ...15314
Testing directional lever ...15314
Testing steering wheel ...15315
Testing work equipment control lever ...15317
Testing and adjusting steering circuit pressure ...15319
Bleeding air from steering cylinder circuit. ...15322
Testing and adjusting steering stopper valve ...15323
Brake system ...15324
Testing brake pedal ...15324
Testing and adjusting brake pedal linkage ...15325
Testing braking performance ...15326
Measuring accumulator nitrogen gas pressure and charging procedure for accumulator nitrogen gas ...15327
Testing and adjusting of accumulator charge pressure ...15331
Testing wheel brake oil pressure ...15333
Testing lowering of wheel brake pressure ...15334
Measuring wear of wheel brake disc ...15337
Bleeding air from wheel brake circuit ...15338
Releasing remaining pressure in brake accumulator circuit ...15339
Testing parking brake performance ...15340
Testing parking brake oil pressure ...15341
Testing wear of parking brake disc ...15343
Method of releasing parking brake manually ...15344
Hydraulic system ...15345
Checking fan speed ...15345
Measuring fan pump circuit oil pressure ...15346
Bleeding air from hydraulic fan circuit ...15347
Testing and adjusting work equipment PPC oil pressure ...15348
Testing and adjusting work equipment oil pressure ...15351
Bleeding air from work equipment circuit ...15355
Releasing remaining pressure from work equipment circuit ...15356
Checking of E.C.S.S. accumulator nitrogen gas pressure and procedure for charging accumulator with nitrogen gas ...15357
Work equipment ...15361
Testing and adjusting bucket position detection lever ...15361
Testing and adjusting boom position detection lever ...15362
Electrical system ...15363
Adjusting replaced, reassembled or added sensor, controller, etc. with machine monitor ...15363
Special functions of machine monitor ...15365
Angle adjustment of rear view camera ...15459
Handling voltage circuit of engine controller ...15460
Handling battery disconnect switch ...15461
Testing diodes ...15462
Pm clinic ...15463
Pm Clinic service ...15463
Check sheet ...15464
40 Troubleshooting ...15469
Table of contents ...15470
General information on troubleshooting ...15480
Troubleshooting points ...15480
Sequence of events in troubleshooting ...15482
Check before troubleshooting ...15484
Inspection procedure before troubleshooting ...15486
Preparation work for troubleshooting of electrical system ...15503
Classification and procedures for troubleshooting ...15509
Symptom and troubleshooting numbers ...15512
Information in troubleshooting table ...15515
Connector list and layout ...15517
T-branch box and T-branch adapter table ...15533
Procedure for troubleshooting wiring harness of pressure sensor system for open circuit ...15539
Fuse location table ...15542
Precautions for KDPF (KCSF and KDOC) Cleaning and Replacement ...15545
Precautions on troubleshooting of machine monitor ...15548
Processing procedure of harness checker for troubleshooting of machine monitor LCD unit ...15550
Fabrication of dummy temperature sensor (for KDOC and KDPF temperature sensors) ...15555
Fabrication of short-circuit connector (for CA1883 and CA3135) ...15556
Failure codes table ...15557
Troubleshooting by failure code (Display of code) ...15571
Failure code [1500L0] Double Engagement of T/M Clutches ...15571
Failure code [15SAL1] Release Trouble of ECMV (Forward) ...15572
Failure code [15SALH] Malfunction of ECMV (Forward) ...15574
Failure code [15SBL1] Release Trouble of ECMV (Reverse) ...15576
Failure code [15SBLH] Malfunction of ECMV (Reverse) ...15578
Failure code [15SEL1] Release Trouble of ECMV (1st) ...15580
Failure code [15SELH] Malfunction of ECMV (1st) ...15582
Failure code [15SFL1] Release Trouble of ECMV (2nd) ...15584
Failure code [15SFLH] Malfunction of ECMV (2nd) ...15586
Failure code [15SGL1] Release Trouble of ECMV (3rd) ...15588
Failure code [15SGLH] Malfunction of ECMV (3rd) ...15590
Failure code [15SHL1] Release Trouble of ECMV (4th) ...15592
Failure code [15SHLH] Malfunction of ECMV (4th) ...15594
Failure code [2F00MA] Failure of Parking Brake Circuit ...15596
Failure code [2G42ZG] Accumulator Oil Pressure Low (Front) ...15599
Failure code [2G43ZG] Accumulator Oil Pressure Low (Rear) ...15601
Failure code [879AKA] A/C Inner Sensor Open Circuit ...15603
Failure code [879AKB] A/C Inner Sensor Short Circuit ...15604
Failure code [879BKA] A/C Outer Sensor Open Circuit ...15605
Failure code [879BKB] A/C Outer Sensor Short Circuit ...15606
Failure code [879CKA] Ventilating Sensor Open Circuit ...15607
Failure code [879CKB] Ventilating Sensor Short Circuit ...15608
Failure code [879DKZ] Sunlight Sensor Open or Short Circuit ...15609
Failure code [879EMC] Ventilation Damper Abnormality ...15610
Failure code [879FMC] Air Mix Damper Abnormality ...15611
Failure code [989A00] Engine Overrun Prevention Activated ...15612
Failure code [989L00] Engine Controller Lock Caution 1 ...15613
Failure code [989M00] Engine Controller Lock Caution 2 ...15614
Failure code [989N00] Engine Controller Lock Caution 3 ...15615
Failure code [A1U0N3] HC Desorb Request 1 ...15616
Failure code [A1U0N4] HC Desorb Request 2 ...15618
Failure code [AA10NX] Air Cleaner Clogging ...15620
Failure code [B@BAZG] Eng Oil Press Low ...15622
Failure code [B@BAZK] Engine Oil Level Low ...15623
Failure code [B@BCNS] Eng Water Overheat ...15624
Failure code [B@BCZK] Eng Water Level Low ...15625
Failure code [B@CENS] T/C Oil Temp. Overheat ...15627
Failure code [B@HANS] HYD Oil Temp. Overheat ...15628
Failure code [CA115] Eng Ne and Bkup Speed Sens Error ...15629
Failure code [CA122] Chg Air Press Sensor High Error ...15630
Failure code [CA123] Chg Air Press Sensor Low Error ...15632
Failure code [CA131] Throttle Sensor High Error ...15634
Failure code [CA132] Throttle Sensor Low Error ...15636
Failure code [CA144] Coolant Temp Sens High Error ...15638
Failure code [CA145] Coolant Temp Sens Low Error ...15640
Failure code [CA153] Chg Air Temp Sensor High Error ...15642
Failure code [CA154] Chg Air Temp Sensor Low Error ...15644
Failure code [CA187] Sensor 2 Supply Volt Low Error ...15646
Failure code [CA221] Ambient Press Sens High Error ...15648
Failure code [CA222] Ambient Press Sens Low Error ...15650
Failure code [CA227] Sensor 2 Supply Volt High Error ...15652
Failure code [CA234] Eng Overspeed ...15653
Failure code [CA238] Ne Speed Sensor Supply Volt Error ...15654
Failure code [CA239] Ne Speed Sens Supply Volt High Error ...15655
Failure code [CA271] IMV/PCV1 Short Error ...15656
Failure code [CA272] IMV/PCV1 Open Error ...15658
Failure code [CA295] Ambient Press Sens In Range Error ...15660
Failure code [CA322] Inj #1(L#1) Open/Short Error ...15661
Failure code [CA323] Inj #5(L#5) Open/Short Error ...15663
Failure code [CA324] Inj #3(L#3) Open/Short Error ...15665
Failure code [CA325] Inj #6(L#6) Open/Short Error ...15667
Failure code [CA331] Inj #2(L#2) Open/Short Error ...15669
Failure code [CA332] Inj #4(L#4) Open/Short Error ...15671
Failure code [CA343] ECM Critical Internal Failure ...15673
Failure code [CA351] Injectors Drive Circuit Error ...15674
Failure code [CA352] Sensor 1 Supply Volt Low Error ...15675
Failure code [CA356] Mass Air Flow Sensor High Error ...15677
Failure code [CA357] Mass Air Flow Sensor Low Error ...15679
Failure code [CA386] Sensor 1 Supply Volt High Error ...15681
Failure code [CA428] Water in Fuel Sensor High Error ...15682
Failure code [CA429] Water in Fuel Sensor Low Error ...15684
Failure code [CA431] Idle Validation Sw Error ...15686
Failure code [CA432] Idle Validation Process Error ...15689
Failure code [CA435] Eng Oil Press Sw Error ...15692
Failure code [CA441] Battery Voltage Low Error ...15693
Failure code [CA442] Battery Voltage High Error ...15695
Failure code [CA449] Rail Press Very High Error ...15696
Failure code [CA451] Rail Press Sensor High Error ...15697
Failure code [CA452] Rail Press Sensor Low Error ...15699
Failure code [CA488] Chg Air Temp High Torque Derate ...15701
Failure code [CA515] Rail Press Sens Sup Volt High Error ...15702
Failure code [CA516] Rail Press Sens Sup Volt Low Error ...15704
Failure code [CA553] Rail Press High Error ...15706
Failure code [CA555] Crankcase Press High Error 1 ...15707
Failure code [CA556] Crankcase Press High Error 2 ...15708
Failure code [CA559] Rail Press Low Error ...15709
Failure code [CA595] Turbo Speed High Error 2 ...15711
Failure code [CA687] Turbo Speed Low Error ...15712
Failure code [CA689] Eng Ne Speed Sensor Error ...15714
Failure code [CA691] Intake Air Temp Sens High Error ...15716
Failure code [CA692] Intake Air Temp Sens Low Error ...15718
Failure code [CA697] ECM Internal Temp Sensor High Error ...15720
Failure code [CA698] ECM Int Temp Sensor Low Error ...15721
Failure code [CA731] Eng Bkup Speed Sens Phase Error ...15722
Failure code [CA778] Eng Bkup Speed Sensor Error ...15724
Failure code [CA1117] Persistent Data Lost Error ...15729
Failure code [CA1664] KDOC Malfunction ...15730
Failure code [CA1691] Regeneration Ineffective ...15733
Failure code [CA1695] Sensor 5 Supply Volt High Error ...15736
Failure code [CA1696] Sensor 5 Supply Volt Low Error ...15737
Failure code [CA1843] Crankcase Press Sens High Error ...15739
Failure code [CA1844] Crankcase Press Sens Low Error ...15741
Failure code [CA1879] KDPF Delta P Sensor High Error ...15743
Failure code [CA1881] KDPF Delta P Sensor Low Error ...15745
Failure code [CA1883] KDPF Delta P Sens In Range Error ...15747
Failure code [CA1921] KDPF Soot Load High Error 1 ...15752
Failure code [CA1922] KDPF Soot Load High Error 2 ...15755
Failure code [CA1942] Crankcase Press Sens In Range Error ...15759
Failure code [CA1993] KDPF Delta Pressure Low Error ...15760
Failure code [CA2185] Throt Sensor Sup Volt High Error ...15763
Failure code [CA2186] Throt Sensor Sup Volt Low Error ...15765
Failure code [CA2249] Rail Press Very Low Error ...15767
Failure code [CA2271] EGR Valve Pos Sens High Error ...15768
Failure code [CA2272] EGR Valve Pos Sens Low Error ...15770
Failure code [CA2288] Turbo Speed High Error 1 ...15773
Failure code [CA2311] IMV Solenoid Error ...15774
Failure code [CA2349] EGR Valve Solenoid Open Error ...15775
Failure code [CA2353] EGR Valve Solenoid Short Error ...15777
Failure code [CA2357] EGR Valve Servo Error ...15779
Failure code [CA2373] Exhaust Manifold Press Sens High error ...15780
Failure code [CA2374] Exhaust Manifold Press Sens Low error ...15782
Failure code [CA2375] EGR Orifice Temp Sens High Error ...15784
Failure code [CA2376] EGR Orifice Temp Sens Low Error ...15786
Failure code [CA2381] KVGT Pos Sens High Error ...15788
Failure code [CA2382] KVGT Pos Sens Low Error ...15790
Failure code [CA2383] KVGT Solenoid Open Error ...15793
Failure code [CA2386] KVGT Solenoid Short Error ...15795
Failure code [CA2387] KVGT Servo Error ...15797
Failure code [CA2554] Exh Manifold Press Sens In Range Error ...15798
Failure code [CA2555] Grid Htr Relay Volt Low Error ...15799
Failure code [CA2556] Grid Htr Relay Volt High Error ...15801
Failure code [CA2637] KDOC Face Plugging ...15803
Failure code [CA2639] Manual Stationary Regeneration Request ...15805
Failure code [CA2961] EGR Orifice Temp High Error 1 ...15808
Failure code [CA2973] Chg Air Press Sensor In Range Error ...15809
Failure code [CA3133] KDPF Outlet Press Sens High Error ...15810
Failure code [CA3134] KDPF Outlet Press Sens Low Error ...15812
Failure code [CA3135] KDPF Outlet Press Sens In Range Error ...15814
Failure code [CA3251] KDOC Inlet Temp High Error ...15818
Failure code [CA3253] KDOC Temp Error - Non Regeneration ...15821
Failure code [CA3254] KDOC Outlet Temp High Error 1 ...15824
Failure code [CA3255] KDPF Temp Error - Non Regeneration ...15827
Failure code [CA3256] KDPF Outlet Temp High Error 1 ...15830
Failure code [CA3311] KDOC Outlet Temp High Error 2 ...15833
Failure code [CA3312] KDPF Outlet Temp High Error 2 ...15836
Failure code [CA3313] KDOC Inlet Temp Sensor Low Error ...15839
Failure code [CA3314] KDOC Inlet Temp Sens High Error ...15842
Failure code [CA3315] KDOC Inlet Temp Sens In Range Error ...15846
Failure code [CA3316] KDOC Outlet Temp Sens Low Error ...15851
Failure code [CA3317] KDOC Outlet Temp Sens High Error ...15854
Failure code [CA3318] KDOC Outlet Temp Sens In Range Error ...15858
Failure code [CA3319] KDPF Outlet Temp Sens High Error ...15863
Failure code [CA3321] KDPF Outlet Temp Sens Low Error ...15867
Failure code [CA3322] KDPF Outlet Temp Sens In Range Error ...15870
Failure code [CA3419] Mass Air Flow Sensor Sup Volt High Error ...15874
Failure code [CA3421] Mass Air Flow Sensor Sup Volt Low Error ...15876
Failure code [CA3741] Rail Press Valve Trip Error ...15878
Failure code [D150KA] Disconnection of Emerg. Steering Relay ...15879
Failure code [D150KB] Ground Fault of Emerg. Steering Relay ...15881
Failure code [D150KY] Hot Short of Emergency Steering Relay ...15883
Failure code [D160KA] Disconnection of Backup Lamp Relay Output ...15885
Failure code [D160KB] Ground Fault of Backup Lamp Relay Output ...15887
Failure code [D160KY] Hot Short of Backup Lamp Relay Output ...15889
Failure code [D191KA] Disconnection of Neutral Output Relay ...15891
Failure code [D191KB] Ground Fault of Neutral Output Relay ...15894
Failure code [D191KY] Hot Short of Neutral Output Relay ...15897
Failure code [D192KA] Disconnection of ECSS Solenoid ...15899
Failure code [D192KB] Ground Fault of ECSS Solenoid ...15901
Failure code [D192KY] Hot Short of ECSS Solenoid ...15902
Failure code [D19JKZ] Personal Code Relay Abnormality ...15903
Failure code [D1E6KA] Disconnection of Parking Brake Relay ...15905
Failure code [D1E6KB] Ground Fault of Parking Brake Relay ...15907
Failure code [D1E6KY] Hot Short of Parking Brake Relay ...15909
Failure code [D5ZHKA] Failure of Key SW C Signal ...15911
Failure code [D5ZHKB] Key SW C Signal Short Circuit ...15913
Failure code [D5ZHKZ] Failure of Key SW C Signal ...15915
Failure code [D5ZHL6] Disconnection of Key SW C ...15917
Failure code [D811MC] KOMTRAX Error ...15919
Failure code [D862KA] GPS Antenna Open Circuit ...15920
Failure code [D8ALKA] Operating Lamp Open Circuit (KOMTRAX) ...15921
Failure code [D8ALKB] Operating Lamp Short Circuit (KOMTRAX) ...15923
Failure code [D8AQK4] CAN2 Discon (KOMTRAX) 2 ...15925
Failure code [D8AQKR] CAN2 Discon (KOMTRAX) ...15926
Failure code [DAF0KT] Abnormality of Non-volatile Memory (MON) ...15927
Failure code [DAF0MB] Monitor ROM Abnormality ...15928
Failure code [DAF0MC] Monitor Error ...15929
Failure code [DAF3KK] Controller Power Source Low (MON) ...15930
Failure code [DAF8KB] Camera Power Supply Short Circuit ...15932
Failure code [DAFDKB] Monitor 12V Power Output Short Circuit ...15933
Failure code [DAFGMC] GPS Module Error ...15935
Failure code [DAFLKA] Operating Lamp Open Circuit (MON) ...15936
Failure code [DAFLKB] Operating Lamp Short Circuit (MON) ...15938
Failure code [DAFQKR] CAN2 Discon (Monitor) ...15940
Failure code [DAQ0KK] Controller Power Source Low (T/M) ...15941
Failure code [DAQ0KT] Abnormality of Non-volatile Memory (T/M) ...15944
Failure code [DAQ0MC] T/M Con Error ...15945
Failure code [DAQ1KA] Disconnection of Key SW ACC (T/M) ...15946
Failure code [DAQ2KK] Solenoid Power Source Low (T/M) ...15948
Failure code [DAQ4KB] Ground Fault of Sol. Self-Holding Relay ...15951
Failure code [DAQ9KQ] Inconsistency of Model Selection (T/M) ...15953
Failure code [DAQLKA] Operating Lamp Open Circuit (T/M) ...15954
Failure code [DAQLKB] Operating Lamp Short Circuit (T/M) ...15956
Failure code [DAQQKR] CAN2 Discon (Transmission Con) ...15958
Failure code [DAQRKR] CAN1 Discon (Transmission Con) ...15959
Failure code [DAQRMA] Inconsistency of Option Selection (T/M) ...15960
Failure code [DAZ9KQ] A/C Model Selection Abnormality ...15961
Failure code [DAZQKR] CAN2 Discon (Aircon ECU) ...15962
Failure code [DB2QKR] CAN2 Discon (Engine Con) ...15963
Failure code [DB2RKR] CAN1 Discon (Engine Con) ...15968
Failure code [DB90KK] Drop in BBC Controller Main Power Source ...15974
Failure code [DB90KT] Abnormality of Non-volatile Memory (BBC) ...15976
Failure code [DB90MC] BBC Error ...15977
Failure code [DB91KA] Disconnection of Key SW ACC (BBC) ...15978
Failure code [DB92KK] Solenoid Power Source Low (BBC) ...15980
Failure code [DB95KX] Failure of 5 V Power Source 1 ...15982
Failure code [DB96KX] Failure of 5 V Power Source 2 ...15986
Failure code [DB99KQ] Inconsistency of Model Selection (BBC) ...15990
Failure code [DB9LKA] Operating Lamp Open Circuit (BBC) ...15991
Failure code [DB9LKB] Operating Lamp Short Circuit (BBC) ...15993
Failure code [DB9QKR] CAN2 Discon (Bucket Boom Con) ...15995
Failure code [DB9RKR] CAN1 Discon (Bucket Boom Con) ...15996
Failure code [DB9RMA] Inconsistency of Option Selection (BBC) ...15997
Failure code [DBE5KX] Failure of 5 V Power Source ...15998
Failure code [DBE6KX] Failure of 24 V Power Source ...16000
Failure code [DD1ALD] Ground Fault of Remote Positioner Set SW ...16002
Failure code [DDAAL6] Discon Engine Shutdown Secondary Switch ...16006
Failure code [DDB6L4] Neutral Signal Malfunction ...16008
Failure code [DDD1LD] Failure of Bucket Positioner Set Switch ...16011
Failure code [DDK3KA] FNR SW Input Signal Disconnection ...16015
Failure code [DDK3KB] FNR SW Input Signal Short Circuit ...16020
Failure code [DDK6KA] FNR Lever Input Signal Disconnection ...16024
Failure code [DDK6KB] FNR Lever Input Signal Short Circuit ...16027
Failure code [DDNRKY] Hot Short of Work Equipment Lock SW ...16029
Failure code [DDT0L4] Failure of Shift Mode Select SW ...16033
Failure code [DDT4LD] Ground Fault of T/M Cut Off Set SW Signal ...16037
Failure code [DDT9LD] Ground Fault of T/M Cut Off SW Signal ...16041
Failure code [DDW9LD] Ground Fault of Kickdown Switch ...16045
Failure code [DDWLLD] Ground Fault of T/M Shift Hold SW ...16049
Failure code [DF10KA] Disconnection of Shift Lever Input ...16053
Failure code [DF10KB] Ground Fault of Shift Lever Input ...16055
Failure code [DGF1KA] Disconnection of T/M Oil Temp. Sensor ...16058
Failure code [DGF1KB] Ground Fault of T/M Oil Temp. Sensor ...16060
Failure code [DGH2KX] Out of Range of HYD Oil Temp. Sensor ...16062
Failure code [DGR2KB] Ground Fault of Brake Oil Temp. Sensor ...16064
Failure code [DGR2KZ] Failure of Brake Oil Temp. Sensor ...16065
Failure code [DGT1KA] Disconnection of T/C Oil Temp. Sensor ...16067
Failure code [DGT1KB] Ground Fault of T/C Oil Temp. Sensor ...16069
Failure code [DH21KA] Failure of Loader Pump Press. Sensor ...16071
Failure code [DH21KB] Loader Pump Press. Sensor Short Circuit ...16073
Failure code [DHA4KA] Failure of Air Cleaner Sensor Circuit ...16075
Failure code [DHPCKX] Out of Range of Boom Bottom Press. Sensor ...16077
Failure code [DHPDKX] Out of Range of Boom Head Press. Sensor ...16079
Failure code [DHT1KX] Out of Range of T/M Cut Off Press. Sensor ...16081
Failure code [DHT5KX] Out of Range of T/C Input Pressure Sensor ...16083
Failure code [DHT7KX] Out of Range of T/C Output Pressure Sensor ...16086
Failure code [DHT8KA] Failure of Steering Pump Press. Sensor ...16088
Failure code [DHT8KB] Steering Pump Press. Sensor Short Circuit ...16090
Failure code [DHT8ZG] Steering Oil Pressure Low ...16092
Failure code [DHUDKA] Failure of Emrg. Steering Press. Sensor ...16093
Failure code [DHUDKB] Emrg. Steering Press. S. Short Circuit ...16095
Failure code [DJF1KA] Disconnection of Fuel Level Sensor ...16097
Failure code [DK55KA] Failure of FNR Lever Potentio ...16099
Failure code [DK55KY] Hot Short of FNR Lever Potentio Circuit ...16102
Failure code [DK55L5] Failure of FNR Lever Potentio ...16104
Failure code [DK59KA] Failure of Boom Lever Potentio (Main) ...16105
Failure code [DK59KY] Hot Short of Boom Lever Potentio (Main) ...16111
Failure code [DK59L8] Boom Lever Potentio (Main & Sub) Disagree ...16116
Failure code [DK5AKA] Failure of Boom Lever Potentio (Sub) ...16123
Failure code [DK5AKY] Hot Short of Boom Lever Potentio (Sub) ...16129
Failure code [DK5BKA] Failure of Bucket Lever Potentio (Main) ...16134
Failure code [DK5BKY] Hot Short of Bucket Lever Potentio (Main) ...16139
Failure code [DK5BL8] Bucket Lever Potentio (Main&Sub) Disagree ...16144
Failure code [DK5CKA] Failure of Bucket Lever Potentio (Sub) ...16151
Failure code [DK5CKY] Hot Short of Bucket Lever Potentio (Sub) ...16156
Failure code [DK5DKA] Failure of 3rd Lever Potentio (Main) ...16161
Failure code [DK5DKY] Hot Short of 3rd Lever Potentio (Main) ...16166
Failure code [DK5DL8] 3rd Lever Potentio (Main & Sub) Disagree ...16170
Failure code [DK5EKA] Failure of 3rd Lever Potentio (Sub) ...16176
Failure code [DK5EKY] Hot Short of 3rd Lever Potentio (Sub) ...16181
Failure code [DK5KKA] Failure of 4th Lever Potentio (Main) ...16185
Failure code [DK5KKY] Hot Short of 4th Lever Potentio (Main) ...16190
Failure code [DK5KL8] 4th Lever Potentio (Main & Sub) Disagree ...16194
Failure code [DK5LKA] Failure of 4th Lever Potentio (Sub) ...16200
Failure code [DK5LKY] Hot Short of 4th Lever Potentio (Sub) ...16205
Failure code [DKA0KA] Failure of Boom Angle Sensor ...16209
Failure code [DKA0KY] Hot Short of Boom Angle Sensor Circuit ...16211
Failure code [DKA0L0] Boom Angle Sensor Dislocation ...16213
Failure code [DKA1KA] Failure of Bucket Angle Sensor ...16215
Failure code [DKA1KY] Hot Short of Bucket Angle Sensor Circuit ...16218
Failure code [DLF1KA] Disconnection of T/M Input Speed Sensor ...16220
Failure code [DLF1LC] Failure of T/M Input Speed Sensor ...16222
Failure code [DLM3KA] Disconnection of Radiator Fan Speed Sensor ...16224
Failure code [DLM3LC] Failure of Radiator Fan Speed Sensor ...16226
Failure code [DLT3KA] Disconnection of Output Speed Sens. (Main) ...16228
Failure code [DLT3LC] Failure of Output Speed Sensor (Main) ...16230
Failure code [DPQ1KR] LIN Discon (Switch Panel) ...16232
Failure code [DPQ2KR] LIN Discon (LED Unit) ...16235
Failure code [DPQ3KR] LIN Discon (Rear View Monitor) ...16238
Failure code [DSJ0KR] CAN2 Discon (Meter Unit) ...16241
Failure code [DT20KB] Ground Fault of T/M Cut Off Indicator ...16242
Failure code [DT22KB] Ground Fault of Work Equip. Lock Indic. ...16246
Failure code [DV00KB] Ground Fault of Buzzer Output ...16250
Failure code [DW4PKA] Disconnection of Boom EPC Solenoid (Raise) ...16252
Failure code [DW4PKB] Ground Fault of Boom EPC Solenoid (Raise) ...16254
Failure code [DW4PKY] Hot Short of Boom EPC Solenoid (Raise) ...16256
Failure code [DW4QKA] Disconnection of Boom EPC Solenoid (Lower) ...16258
Failure code [DW4QKB] Ground Fault of Boom EPC Solenoid (Lower) ...16260
Failure code [DW4QKY] Hot Short of Boom EPC Solenoid (Lower) ...16262
Failure code [DW4RKA] Disconnection of Bucket EPC Sol. (Tilt) ...16264
Failure code [DW4RKB] Ground Fault of Bucket EPC Solenoid (Tilt) ...16266
Failure code [DW4RKY] Hot Short of Bucket EPC Solenoid (Tilt) ...16268
Failure code [DW4SKA] Disconnection of Bucket EPC Sol. (Dump) ...16270
Failure code [DW4SKB] Ground Fault of Bucket EPC Solenoid (Dump) ...16272
Failure code [DW4SKY] Hot Short of Bucket EPC Solenoid (Dump) ...16274
Failure code [DW7BKA] Disconnection of Fan Reverse Solenoid ...16276
Failure code [DW7BKB] Ground Fault of Radiator Fan Rev. Sol. ...16277
Failure code [DW7BKY] Hot Short of Radiator Fan Rev. Sol. ...16279
Failure code [DWM1KA] Disconnection of Neutral Lock Solenoid ...16280
Failure code [DWM1KB] Ground Fault of Neutral Lock Solenoid ...16282
Failure code [DWM1KY] Hot Short of Neutral Lock Solenoid ...16284
Failure code [DWN6KA] Disconnection of Detent Solenoid (Boom) ...16286
Failure code [DWN6KB] Ground Fault of Detent Solenoid (Boom) ...16290
Failure code [DWN6KY] Hot Short of Detent Solenoid (Boom) ...16294
Failure code [DWN8KA] Disconnection of Detent Solenoid (Bucket) ...16298
Failure code [DWN8KB] Ground Fault of Detent Solenoid (Bucket) ...16302
Failure code [DWN8KY] Hot Short of Detent Solenoid (Bucket) ...16306
Failure code [DX16KA] Disconnection of Rad. Fan Pump EPC Sol. ...16310
Failure code [DX16KB] Ground Fault of Rad. Fan Pump EPC Sol. ...16312
Failure code [DX16KY] Hot Short of Radiator Fan Pump EPC Sol. ...16314
Failure code [DXA1KA] Disconnection of Loader Pump EPC Solenoid ...16316
Failure code [DXA1KB] Ground Fault of Loader Pump EPC Solenoid ...16318
Failure code [DXA1KY] Hot Short of Loader Pump EPC Solenoid ...16320
Failure code [DXANKA] Disconnection of Steering Pump EPC Sol. ...16321
Failure code [DXANKB] Ground Fault of Steering Pump EPC Solenoid ...16323
Failure code [DXANKY] Hot Short of Steering Pump EPC Solenoid ...16325
Failure code [DXH1KA] Disconnection of ECMV Solenoid (Lockup) ...16326
Failure code [DXH1KB] Ground Fault of ECMV Solenoid (Lockup) ...16328
Failure code [DXH1KY] Hot Short of ECMV Solenoid (Lockup) ...16330
Failure code [DXH4KA] Disconnection of ECMV Solenoid (1st) ...16332
Failure code [DXH4KB] Ground Fault of ECMV Solenoid (1st) ...16334
Failure code [DXH4KY] Hot Short of ECMV Solenoid (1st) ...16336
Failure code [DXH5KA] Disconnection of ECMV Solenoid (2nd) ...16338
Failure code [DXH5KB] Ground Fault of ECMV Solenoid (2nd) ...16340
Failure code [DXH5KY] Hot Short of ECMV Solenoid (2nd) ...16342
Failure code [DXH6KA] Disconnection of ECMV Solenoid (3rd) ...16344
Failure code [DXH6KB] Ground Fault of ECMV Solenoid (3rd) ...16345
Failure code [DXH6KY] Hot Short of ECMV Solenoid (3rd) ...16347
Failure code [DXH7KA] Disconnection of ECMV Solenoid (Reverse) ...16349
Failure code [DXH7KB] Ground Fault of ECMV Solenoid (Reverse) ...16351
Failure code [DXH7KY] Hot Short of ECMV Solenoid (Reverse) ...16353
Failure code [DXH8KA] Disconnection of ECMV Solenoid (Forward) ...16355
Failure code [DXH8KB] Ground Fault of ECMV Solenoid (Forward) ...16356
Failure code [DXH8KY] Hot Short of ECMV Solenoid (Forward) ...16358
Failure code [DXHHKA] Disconnection of ECMV Solenoid (4th) ...16360
Failure code [DXHHKB] Ground Fault of ECMV Solenoid (4th) ...16362
Failure code [DXHHKY] Hot Short of ECMV Solenoid (4th) ...16364
Failure code [DXHJKA] Disconnection of 3rd EPC Solenoid (EXT) ...16366
Failure code [DXHJKB] Ground Fault of 3rd EPC Solenoid (EXT) ...16368
Failure code [DXHJKY] Hot Short of 3rd EPC Solenoid (EXT) ...16370
Failure code [DXHKKA] Disconnection of 3rd EPC Solenoid (RET) ...16372
Failure code [DXHKKB] Ground Fault of 3rd EPC Solenoid (RET) ...16374
Failure code [DXHKKY] Hot Short of 3rd EPC Solenoid (RET) ...16376
Failure code [DXJEKA] Disconnection of 4th EPC Solenoid (EXT) ...16378
Failure code [DXJEKB] Ground Fault of 4th EPC Solenoid (EXT) ...16380
Failure code [DXJEKY] Hot Short of 4th EPC Solenoid (EXT) ...16382
Failure code [DXJFKA] Disconnection of 4th EPC Solenoid (RET) ...16384
Failure code [DXJFKB] Ground Fault of 4th EPC Solenoid (RET) ...16386
Failure code [DXJFKY] Hot Short of 4th EPC Solenoid (RET) ...16388
Failure code [DY30MA] Malfunction 1 of Emerg. Steering Motor ...16390
Failure code [DY30MC] Malfunction 2 of Emerg. Steering Motor ...16393
Failure code [DY30ME] Emerg. Steering Long-Time Activated ...16397
Failure code [H2K0KA] Failure of Quick Coupler Lock Signal ...16399
Failure code [H2K0KY] Hot Short of Quick Coupler Lock Signal ...16402
Failure code [LA00L3] Failure of Fan Reverse ...16404
Troubleshooting of electrical system (E-mode) ...16405
E-1 Engine does not start ...16405
E-2 Manual preheating system does not work ...16412
E-3 Automatic preheating system does not work ...16415
E-4 While preheating is working, preheating monitor does not light up ...16417
E-5 All of LCD unit, LED unit, and meter unit on machine monitor display nothing ...16419
E-6 LCD unit on machine monitor displays nothing ...16422
E-7 Backlight of LCD unit on machine monitor is abnormal (Backlight goes out or flickers) ...16424
E-8 LCD on machine monitor does not display properly ...16426
E-9 Meter unit display on machine monitor is abnormal ...16428
E-10 Night lighting lamp of meter unit on machine monitor is abnormal ...16431
E-11 Caution LED on machine monitor is abnormal ...16434
E-12 LED of switch panel on machine monitor is abnormal or switches does not operate properly ...16436
E-13 Two switches operation of switch panel on machine monitor does not function ...16438
E-14 Switch panel buzzer of machine monitor is abnormal ...16441
E-15 Rear view monitor does not light up or backlight flickers ...16443
E-16 Rear view monitor images are not displayed clearly ...16446
E-17 Rear view monitor brightness cannot be adjusted ...16449
E-18 Night lighting lamp of rear view monitor is abnormal ...16452
E-19 Some items of gauges and caution lamps on machine monitor are not displayed properly ...16454
E-20 Parking brake indicator lamp does not light when the parking brake is set to ON (Parking) position ...16455
E-21 When brake accumulator oil pressure drops, the brake oil pressure caution lamp does not light ...16459
E-22 Air cleaner clogging indicator lamp does not light ...16461
E-23 Radiator coolant level caution lamp does not light ...16462
E-24 Indication of hydraulic oil temperature gauge does not increase, or hydraulic oil temperature caution lamp does not light ...16464
E-25 Indication of torque converter oil temperature gauge does not increase, or torque converter oil temperature caution lamp does not light ...16466
E-26 Fuel level gauge does not indicate correct level ...16467
E-27 Seat belt caution lamp indication is abnormal ...16469
E-28 Horn does not sound ...16470
E-29 Horn does not stop sounding ...16473
E-30 Alarm buzzer does not sound ...16475
E-31 When starting switch is in ON position, alarm buzzer does not stop sounding ...16476
E-32 Kickdown does not work when kickdown switch is turned ON ...16477
E-33 The hold switch does not work when it is pressed ...16479
E-34 Parking brake does not work even if it is applied, or the brake drags when parking brake is released and FR drive is operated ...16481
E-35 Transmission cut-off mode is not selected or not released ...16484
E-36 Transmission cut-off setting cannot be released ...16486
E-37 Directional selector (FNR) switch mode is not selected or not released ...16488
E-38 When operating engine power selection switch, engine power selection function does not operate properly ...16490
E-39 Flow of loader pump does not increase from the minimum rate ...16492
E-40 ECSS function cannot be selected or cannot be released ...16493
E-41 None of headlamp, clearance lamp, and tail lamp lights ...16495
E-42 Clearance lamp and tail lamp do not light up or go out ...16497
E-43 Both "High and Low beams" of headlamp do not light up or go out ...16500
E-44 The headlamp "Low beam" does not light up or go out ...16504
E-45 The headlamp "High beam" does not light up or go out ...16506
E-46 Front working lamp does not light up or go out ...16508
E-47 Rear working lamp does not light up or go out ...16511
E-48 All of turn signal lamps and hazard lamps do not light up or go out ...16514
E-49 Turn signal lamps do not light up or go out ...16517
E-50 Hazard lamp does not light up or go out ...16520
E-51 Brake lamp does not light up or stays lighted ...16523
E-52 Backup lamp does not light or continues to light ...16526
E-53 Backup buzzer does not sound or continues to sound ...16529
E-54 Front wiper does not operate ...16531
E-55 Rear wiper does not operate ...16534
E-56 Window washer does not operate ...16536
E-57 KOMTRAX system does not operate properly ...16539
Troubleshooting of hydraulic and mechanical system (H-mode) ...16541
Information described in troubleshooting table (H-mode) ...16541
System chart of hydraulic and mechanical systems ...16542
Failure mode and cause table ...16544
H-1 Machine does not start ...16550
H-2 Torque converter lockup clutch is not disengaged (engine stalls) ...16553
H-3 Torque converter lockup clutch is not engaged ...16554
H-4 Travel speed is slow, bucket thrust force is weak, gradability is low, or gear speed does not shift ...16555
H-5 Large shock is made when machine starts or gear is shifted ...16558
H-6 Machine starts or gear speed shifts with long time lag ...16561
H-7 Torque converter oil temperature is high ...16563
H-8 Machine does not turn ...16566
H-9 Turning response is poor ...16568
H-10 Steering wheel is heavy to turn ...16570
H-11 Machine sways or large shocks are made while machine turns ...16571
H-12 Turning radius differs between right and left turns ...16573
H-13 Wheel brakes do not work or are weak ...16574
H-14 Wheel brakes are not released or drag ...16575
H-15 Parking brake does not work or it is weak ...16576
H-16 Parking brake is not released or drags (including emergency release system) ...16577
H-17 Boom does not rise ...16578
H-18 Boom moves slow or boom lacks lifting force ...16580
H-19 Rising boom slows down at certain height ...16582
H-20 Lift cylinders do not serve to hold bucket on ground ...16583
H-21 Hydraulic drift of boom is large ...16584
H-22 Boom moves up and down during operation ...16585
H-23 Bucket does not tilt back ...16586
H-24 Bucket moves slow or bucket lacks tilt-back force ...16588
H-25 Bucket decelerates during tilt-back operation ...16590
H-26 Bucket cylinder does not hold bucket on ground ...16591
H-27 Hydraulic drift of bucket is large ...16592
H-28 Bucket tilts back and forth during carrying load (work equipment valve in "HOLD") ...16593
H-29 Boom and bucket control levers do not move smoothly and heavy to move ...16594
H-30 Operating work equipment causes engine speed to lower significantly or engine to stall ...16596
H-31 Large shocks are made when work equipment starts to move and stops ...16597
H-32 When certain work equipment stalls hydraulically, other work equipment moves ...16599
H-33 E.C.S.S. (travel damper) does not work and machine pitches and bounces ...16600
H-34 Air conditioner does not work while cooling fan rotates in reverse mode ...16601
H-35 Fan speed is abnormal (too high or low, or fan doe not rotate) ...16602
H-36 Unusual noise is heard from around fan ...16603
Troubleshooting of engine (S-mode) ...16604
Information described in troubleshooting table (S mode) ...16604
S-1 Engine does not crank when starting switch is turned to "START" position ...16605
S-2 Engine cranks but no exhaust smoke comes out ...16606
S-3 Fuel is being injected but engine does not start (misfiring: engine cranks but does not start) ...16607
S-4 Engine startability is poor ...16608
S-5 Engine does not pick up smoothly ...16610
S-6 Engine stops during operation ...16612
S-7 Engine runs rough or is unstable ...16614
S-8 Engine lacks power ...16615
S-9 Exhaust smoke is black (KDPF gets clogged in a short time) ...16617
S-10 Engine oil consumption is excessive ...16619
S-11 Engine oil becomes contaminated early ...16620
S-12 Fuel consumption is excessive ...16621
S-13 Oil is in coolant (or coolant spurts or coolant level goes down) ...16622
S-14 Oil pressure drops ...16623
S-15 Fuel mixes into engine oil ...16624
S-16 Water mixes into engine oil (milky) ...16625
S-17 Coolant temperature rises too high (overheating) ...16626
S-18 Unusual noise is heard ...16627
S-19 Vibration is excessive ...16628
S-20 Air cannot be bled from fuel circuit ...16629
S-21 Active regeneration is executed frequently ...16630
S-22 Active regeneration takes time ...16631
S-23 White smoke is exhausted during active regeneration ...16632
50 Disassembly and assembly ...16633
Table of contents ...16634
General information on disassembly and assembly ...16636
How to read this manual ...16636
Coating materials list ...16638
Special tools list ...16642
Sketches of special tools ...16645
Engine and cooling system ...16652
Removal and installation of supply pump assembly ...16652
Removal and installation of injector assembly ...16655
Removal and installation of cylinder head assembly ...16666
Removal and installation of engine hood assembly ...16685
Removal and installation of grille assembly ...16688
Removal and installation of cooling system assembly ...16689
Removal and installation of radiator core assembly ...16692
Removal and installation of aftercooler ...16695
Removal and installation of hydraulic oil cooler assembly ...16697
Removal and installation of fuel cooler assembly ...16698
Removal and installation of engine, torque converter and transmission assemblies ...16699
Disconnection and connection of engine, torque converter and transmission assembly ...16706
Removal and installation of engine front oil seal ...16708
Removal and installation of engine rear oil seal ...16711
Removal and installation of cooling fan and fan motor assembly ...16714
Removal and installation of KDPF assembly ...16716
Disassembly and assembly of KDPF assembly ...16719
Removal and installation of KCCV assembly ...16728
Removal and installation of air cleaner assembly ...16729
Removal and installation of fuel tank assembly ...16731
Power train ...16734
Disassembly and assembly of torque converter assembly ...16734
Disassembly and assembly of transmission assembly ...16741
Disassembly and assembly of transmission clutch pack assembly ...16754
Disassembly and assembly of differential assembly ...16768
Disassembly and assembly of parking brake assembly ...16786
Removal and installation of front axle assembly ...16794
Removal and installation of rear axle assembly ...16795
Disassembly and assembly of axle housing assembly ...16798
Steering system ...16807
Removal and installation of steering valve assembly ...16807
Brake system ...16809
Removal and installation of parking brake disc and plate ...16809
Undercarriage and frame ...16812
Removal and installation of center hinge pin ...16812
Removal and installation of counterweight assembly ...16820
Removal and installation of full-length fender assembly ...16822
Hydraulic system ...16823
Removal and installation of hydraulic tank assembly ...16823
Removal and installation of work equipment controll valve assembly ...16826
Removal and installation of power train pump and work equipment hydraulic pump assembly ...16829
Removal and installation of steering pump and cooling fan pump assembly ...16830
Disassembly and assembly of hydraulic cylinder assembly ...16832
Work equipment ...16839
Removal and installation of work equipment assembly ...16839
Cab and its attachments ...16844
Removal and installation of operator's cab and floor frame assembly ...16844
Removal and installation of operator's cab glass (stuck window glass) ...16848
Removal and installation of operator's seat assembly ...16856
Removal and installation of seat belt ...16858
Electrical system ...16859
Removal and installation of machine monitor assembly ...16859
Removal and installation of engine controller assembly ...16860
Removal and installation of work equipment controller assembly ...16861
Removal and installation of transmission controller assembly ...16863
Removal and installation of monitor controller assembly ...16864
Removal and installation of mass air flow and temperature sensor ...16866
Removal and installation of KOMTRAX terminal assembly ...16867
60 Maintenance standard ...16869
Table of contents ...16870
Engine and cooling system ...16871
Engine related parts ...16871
Cooling fan pump ...16872
Cooling fan motor ...16875
Power train ...16877
Drive shaft ...16877
Torque converter ...16878
Transmission ...16880
Transmission control valve ...16887
Forward and reverse clutch ECMV and gear speed clutch ECMV ...16888
Lockup clutch ECMV ...16889
Main relief and torque converter relief valve ...16890
Differential ...16891
Limited slip differential ...16894
Final drive ...16898
Steering system ...16900
Steering column ...16900
Steering pump ...16901
Steering valve ...16905
Steering cylinder ...16907
Emergency steering pump ...16909
Brake system ...16910
Charge valve ...16910
Brake ...16912
Parking brake ...16914
Parking brake solenoid valve ...16915
Undercarriage and frame ...16916
Axle mount and center hinge pin ...16916
Hydraulic system ...16920
Hydraulic tank ...16920
Double type gear pump ...16921
Work equipment pump ...16922
Control valve ...16927
Stabilizer valve ...16938
Work equipment ...16939
Work equipment linkage ...16939
Bucket ...16942
Work equipment cylinder ...16943
80 Appendix ...16945
Table of contents ...16946
Air conditioner components ...16947
Precautions for refrigerant ...16947
Air conditioner component ...16948
Configuration and function of refrigeration cycle ...16950
Outline of refrigeration cycle ...16951
Air conditioner unit ...16953
Dual pressure switch ...16958
Air conditioner controller ...16959
Compressor ...16960
Condenser ...16961
Receiver drier ...16962
Sunlight sensor ...16964
Outer temperature sensor (outside air temperature sensor) ...16965
Procedure for testing and troubleshooting ...16966
Circuit diagram and arrangement of connector pins ...16968
System diagram ...16970
Parts and connectors layout ...16972
Testing with self-diagnosis function ...16977
Testing temperature control system ...16980
Testing vent (mode) changeover ...16982
Testing FRESH/RECIRC air changeover ...16984
Check evaporator temperature sensor ...16986
Testing relays ...16988
Troubleshooting chart 1 ...16990
Troubleshooting chart 2 ...16991
Information in troubleshooting table ...16993
Failure code list related to air conditioner ...16994
Failure code [879AKA] A/C Inner Sensor Open Circuit ...16995
Failure code [879AKB] A/C Inner Sensor Short Circuit ...16997
Failure code [879BKA] A/C Outer Sensor Open Circuit ...16999
Failure code [879BKB] A/C Outer Sensor Short Circuit ...17001
Failure code [879CKA] Ventilating Sensor Open Circuit ...17003
Failure code [879CKB] Ventilating Sensor Short Circuit ...17005
Failure code [879DKZ] Sunlight Sensor Open or Short Circuit ...17007
Failure code [879EMC] Ventilation Damper Abnormality ...17009
Failure code [879FMC] Air Mix Damper Abnormality ...17012
A-1 Troubleshooting for power supply and CAN communication system (Air conditioner does not operate) ...17015
A-2 Troubleshooting for compressor and refrigerant system (Air is not cooled) ...17018
A-3 Troubleshooting for blower motor system (No air comes out or air flow is abnormal) ...17021
A-4 Troubleshooting for FRESH/RECIRC air changeover ...17024
Troubleshooting with gauge pressure ...17026
Connection of service tool ...17029
Precautions for disconnecting and connecting hoses and tubes in air conditioner circuit ...17031
Handling of compressor oil ...17033
90 Diagrams and drawings ...17035
Table of contents ...17036
Hydraulic circuit diagram ...17037
Symbols in hydraulic circuit diagram ...17037
Power train hydraulic circuit diagram ...17041
Hydraulic circuit diagram...17043
Electric circuit diagram ...17044
Symbols in electric circuit diagram ...17044
Electric circuit diagram of machine body...17048
Electric circuit diagram of floor...17054
INDEX...17070
SEN06411-00 - Wheel Loader WA380-6, WA380Z-6 Shop Manual...17084
Cover...17084
00 Index and foreword...0
Index...17085
Composition of shop manual...17086
Table of contents...17088
Foreword and general information...17101
Safety notice...17102
How to read the shop manual...17107
Explanation of terms for maintenance standard...17109
Handling of electric equipment and hydraulic component...17111
Handling of connectors newly used for engines...17120
How to read electric wire code...17123
Precautions when carrying out operation...17126
Method of disassembling and connecting push-pull type coupler...17129
Standard tightening torque table...17132
Conversion table...17136
01 Specification...17143
Specification and technical data...0
Specification dimension drawing...17144
Specifications...17146
Weight table...17154
Table of fuel, coolant and lubricants...17158
10 Structure, function and maintenance standard...0
Engine and cooling system...17161
Engine mount and transmission mount...17162
Cooling system...17163
Cooling fan pump...17165
Brake and fan pump...17172
Cooling fan motor...17173
Power train...17187
Power train...17189
Power train system diagram...17190
Drive shaft...17193
Power train piping diagram...17194
Torque converter...17196
Transmission...17204
Flow control valve...17238
Valve assembly...17240
ECMV...17241
Main relief valve and torque converter relief valve...17249
Differential...17253
Limited slip differential...17257
Final drive...17264
Steering system...17269
Steering piping diagram...17270
Steering column...17272
Steering pump...17274
Steering valve...17294
Orbit-roll valve...17309
Stop valve...17317
Steering relief valve...17318
Steering cylinder...17319
Emergency steering motor...17321
Emergency steering pump...17322
Joystick steering lever linkage...17323
Steering electric lever...17324
Joystick EPC valve...17325
Brake system...17327
Brake piping diagram...17328
Charge valve...17330
Brake valve...17337
Accumulator (for brake)...17342
Brake...17344
Parking brake control...17349
Parking brake...17350
Parking brake solenoid valve...17352
Emergency parking brake release valve...17354
Undercarriage and frame...17357
Axle mount and center hinge pin...17358
Tires...17363
Hydraulic system, Part 1...17365
Hydraulic piping diagram...17366
Work equipment control lever linkage...17372
Hydraulic tank...17375
Power train pump...17379
Work equipment pump...17380
Work equipment control valve...17402
CLSS...17430
Each function and operation of each valve...17434
Hydraulic system, Part 2...17467
PPC valve...17468
Stabilizer valve...17474
Accumulator (for PPC circuit)...17480
Accumulator (for ECSS)...17481
Work equipment PPC cut-off solenoid valve...17482
Work equipment...17485
Work equipment linkage...17486
Bucket...17490
Bucket positioner and boom kick-out...17492
Work equipment cylinder...17498
Cab and its attachments...17501
Cab...17503
Air conditioner...17504
Electrical system, Part 1...17525
Machine monitor system...17526
Machine monitor...17534
Electrical system, Part 2...17593
Electrical system (Transmission controller system)...17594
Transmission controller...17638
Electrical system (Work equipment controller system)...17642
Work equipment controller...17648
Electrical system, Part 3...17651
Electric transmission control...17652
Kickdown switch and hold switch...17656
Multi-function knob...17658
Joystick steering knob...17659
KOMTRAX terminal system...17660
Engine starting circuit...17662
Engine stopping circuit...17666
Preheating circuit...17668
Engine power mode selector circuit...17669
Engine output derating function...17670
Automatic warm-up function...17670
Parking brake circuit...17672
Sensor...17674
20 Standard value table...0
Standard service value table...17685
Standard service value table for engine...17686
Standard service value table for chassis...17688
30 Testing and adjusting...0
Testing and adjusting, Part 1...17701
Tools for testing, adjusting, and troubleshooting...17703
Testing engine speed...17710
Testing exhaust gas color...17712
Adjusting valve clearance...17714
Testing compression pressure...17719
Testing blow-by pressure...17725
Testing engine oil pressure...17726
Testing intake air (boost) pressure1...17728
Handling fuel system equipment...17730
Releasing residual pressure in fuel system...17730
Testing fuel pressure...17731
Testing fuel delivery, return and leak amount...17736
Bleeding air from fuel circuit...17744
Testing leakage in fuel system...17745
Handling reduced cylinder mode operation...17746
Handling no-injection cranking operation...17746
Handling controller voltage circuit1...17747
Testing muffler (main body) and muffler stack for looseness or damage...17747
Testing muffler for functions...17748
Testing cylinder head and manifold parts for tightness...17748
Testing engine piping for damage and tightness...17749
Testing and adjusting air conditioner compressor belt tension...17750
Replacing alternator belt...17751
Adjusting transmission speed sensor...17753
Adjusting length of directional lever...17754
Adjusting length of gearshift lever...17754
Testing directional lever...17755
Testing and adjusting power train oil pressure...17756
Procedure for flushing torque converter and transmission hydraulic circuit...17785
Method of moving machine when transmission valve is broken...17786
Testing axle end for oil leakage...17790
Testing drive shaft for looseness, backlash and damage...17790
Testing and adjusting steering stop valve...17791
Testing and adjusting steering wheel...17793
Testing and adjusting steering oil pressure...17795
Bleeding air from steering circuit...17798
Testing and adjusting, Part 2...17801
Testing hydraulic drive fan...17803
Bleeding air from hydraulic drive fan circuit...17807
Testing brake pedal...17810
Testing and adjusting brake pedal linkage...17811
Testing brake performance...17812
Testing and adjusting accumulator charge pressure...17813
Testing wheel brake oil pressure...17815
Testing wheel brake oil pressure drop...17816
Testing wear of wheel brake disc...17818
Bleeding air from wheel brake circuit...17819
Releasing residual pressure in brake accumulator circuit...17820
Testing parking brake performance...17821
Testing parking brake oil pressure...17822
Testing wear of parking brake disc...17824
Method of releasing parking brake manually...17825
Testing and adjusting work equipment control lever...17826
Testing and adjusting worke quipment PPC oil pressure...17827
Testing and adjusting work equipment oil pressure...17833
Bleeding air from work equipment circuit...17837
Releasing residual pressure in work equipment circuit...17838
Procedure for testing of nitrogen gas pressure and charging of nitrogen gas of ECSS (Electronically Controlled Suspension System) accumulator...17840
Testing and adjusting bucket positioner...17846
Testing and adjusting boom kick-out...17848
Checking proximity switch operation pilot lamp...17849
Procedure for testing diodes...17850
Preparation work for troubleshooting for electric system...17851
How to start operation of KOMTRAX terminal...17860
Lamp display of KOMTRAX terminal...17865
Testing and adjusting, Part 3...17869
Adjusting replaced, reassembled or added sensor, controller, etc. with machine monitor...17871
Special functions of machine monitor (EMMS)...17873
Pm-clinic inspection table...17942
40 Troubleshooting...0
Failure code table and fuse locations...17949
Failure code table...17950
Fuse locations...17967
General information on troubleshooting...17973
Points to remember when troubleshooting...17974
Sequence of events in troubleshooting...17975
Testing before troubleshooting...17977
Classification and procedures of troubleshooting...17978
Information contained in troubleshooting table...17981
Connection table for connector pin numbers...17983
T- branch box and T- branch adapter table...18019
Troubleshooting by failure code (Display of code), Part 1...18023
Failure code [1500L0] (TORQFLOW transmission: Double meshing)...18025
Failure code [15SAL1] (ECMV F clutch: When command current is OFF, fill signal is ON)...18026
Failure code [15SALH] (ECMV F clutch: When command current is ON, fill signal is OFF)...18028
Failure code [15SBL1] (ECMV R clutch: When command current is OFF, fill signal is ON)...18030
Failure code [15SBLH] (ECMV R clutch: When command current is ON, fill signal is OFF)...18032
Failure code [15SEL1] (ECMV 1st clutch: When command current is OFF, fill signal is ON)...18034
Failure code [15SELH] (ECMV 1st clutch: When command current is ON, fill signal is OFF)...18036
Failure code [15SFL1] (ECMV 2nd clutch: When command current is OFF, fill signal is ON)...18038
Failure code [15SFLH] (ECMV 2nd clutch: When command current is ON, fill signal is OFF)...18040
Failure code [15SGL1] (ECMV 3rd clutch: When command current is OFF, fill signal is ON)...18042
Failure code [15SGLH] (ECMV 3rd clutch: When command current is ON, fill signal is OFF)...18044
Failure code [15SHL1] (ECMV 4th clutch: When command current is OFF, fill signal is ON)...18046
Failure code [15SHLH] (ECMV 4th clutch: When command current is ON, fill signal is OFF)...18048
Failure code [2F00MA] (Parking brake: Malfunction)...18050
Failure code [2G43ZG] (Accumulator: Low oil pressure)...18053
Failure code [44K0L4] (Bucket positioner: ON/OFF signals disagree)...18057
Troubleshooting by failure code (Display of code), Part 2...18061
Failure code [AA1ANX] (Air cleaner: Clogging)...18064
Failure code [AB00L6] (Alternator: Signal disagrees with operating state of engine)...18067
Failure code [AB00MA] (Alternator: Malfunction)...18071
Failure code [B@BAZG] (Rotation derating by low engine oil pressure)...18075
Failure code [B@BAZK] (Engine oil: Low level)...18076
Failure code [B@BCNS] (Coolant: Overheating)...18077
Failure code [B@BCZK] (Coolant: Low level)...18079
Failure code [B@BEBF] (Water in fuel error)...18082
Failure code [B@C7NS] (Brake oil: Overheating)...18084
Failure code [b@CENS] (Torque converter oil: Overheating)...18086
Failure code [B@CENS] (Torque converter oil: Overheating)...18089
Failure code [B@HANS] (Hydraulic oil: Overheating)...18092
Failure code [CA111] (Abnormality in engine controller)...18094
Failure code [CA115] (Engine Ne or Bkup speed sensor error)...18095
Failure code [CA122] (Charge pressure sensor high error)...18096
Failure code [CA123] (Charge pressure sensor low error)...18098
Failure code [CA131] (Throttle sensor high error)...18100
Failure code [CA132] (Throttle sensor low error)...18102
Failure code [CA144] (Coolant sensor high error)...18104
Failure code [CA145] (Coolant sensor low error)...18106
Failure code [CA153] (Charge temperature sensor high error)...18108
Failure code [CA154] (Charge temperature sensor low error)...18110
Failure code [CA155] (Derating of speed by abnormally high charge temperature)...18112
Failure code [CA187] (Sensor power supply 2 low error)...18114
Failure code [CA221] (Atmospheric pressure sensor high error)...18116
Failure code [CA222] (Atmospheric sensor low error)...18118
Failure code [CA227] (Sensor power supply 2 high error)...18120
Failure code [CA234] (Engine overspeed)...18121
Failure code [CA238] (Ne speed sensor power supply error)...18122
Troubleshooting by failure code (Display of code), Part 3...18125
Failure code [CA271] (IMV/PCV1 Short circuit)...18127
Failure code [CA272] (IMV/PCV1 Disconnection)...18128
Failure code [CA322] (Injector #1 open/short error)...18130
Failure code [CA323] (Injector #5 open/short error)...18132
Failure code [CA324] (Injector #3 open/short error)...18134
Failure code [CA325] (Injector #6 open/short error)...18136
Failure code [CA331] (Injector #2 open/short error)...18138
Failure code [CA332] (Injector #4 open/short error)...18140
Failure code [CA342] (Calibration code inconsistency)...18142
Failure code [CA351] (Injectors drive circuit error)...18144
Failure code [CA352] (Sensor power supply 1 low error)...18147
Failure code [CA386] (Sensor power supply 1 high error)...18149
Failure code [CA428] (Abnormally high level in water sensor)...18150
Failure code [CA429] (Abnormally low level in water sensor)...18151
Failure code [CA431] (Idle validation switch error)...18152
Failure code [CA432] (Idle validation action error)...18155
Failure code [CA435] (Engine oil pressure switch error)...18157
Failure code [CA441] (Battery voltage low error)...18158
Failure code [CA442] (Battery voltage high error)...18162
Failure code [CA449] Common rail pressure high error 2...18165
Failure code [CA451] (Common rail pressure sensor high error)...18167
Failure code [CA452] (Common rail pressure sensor low error)...18169
Failure code [CA488] (Derating of torque by abnormally high charge temperature)...18171
Failure code [CA553] (Common rail pressure high error 1)...18172
Failure code [CA559] (Supply pump pressure very low error)...18173
Failure code [CA689] (Engine Ne speed sensor error)...18174
Failure code [CA731] (Engine Bkup speed sensor phase error)...18177
Failure code [CA757] (All continuous data lost error)...18178
Failure code [CA778] (Engine Bkup speed sensor error)...18182
Failure code [CA1633] (KOMNET datalink timeout error)...18185
Failure code [CA2185] (Throttle sensor power supply voltage high error)...18188
Failure code [CA2186] (Throttle sensor power supply voltage low error)...18189
Troubleshooting by failure code (Display of code), Part 4...18191
Failure code [CA2249] (Supply pump pressure very low error 2)...18193
Failure code [CA2311] (Abnormality in IMV solenoid)...18194
Failure code [CA2555] (Intake heater relay disconnection error)...18196
Failure code [CA2556] (Intake heater relay short circuit error)...18199
Failure code [D150KA] (Emergency steering relay: Disconnection)...18202
Failure code [D150KB] (Emergency steering relay: Short circuit)...18205
Failure code [D150KY] (Emergency steering relay: Short circuit with power supply line)...18208
Failure code [D160KA] (Backup lamp relay: Disconnection)...18211
Failure code [D160KB] (Backup lamp relay: Short circuit)...18214
Failure code [D191KA] (Joystick steering neutral safety relay: Disconnection)...18217
Failure code [D191KB] (Joystick steering neutral safety relay: Short circuit)...18219
Failure code [D191KY] (Joystick steering neutral safety relay: Short circuit with power supply line)...18221
Failure code [D192KA] (ECSS solenoid: Disconnection)...18223
Failure code [D192KB] (ECSS solenoid: Short circuit)...18224
Failure code [D192KY] (ECSS solenoid: Short circuit with power supply line)...18225
Failure code [D193KA] (Joystick steering solenoid cut relay: Disconnection)...18226
Failure code [D193KB] (Joystick steering solenoid cut relay: Short circuit)...18228
Failure code [D193KY] (Joystick steering solenoid cut relay: Short circuit with power supply line)...18230
Failure code [D5ZHKA] (Terminal C signal: Disconnection)...18233
Failure code [D5ZHKB] (Terminal C signal: Short circuit)...18239
Failure code [D5ZHKZ] (Terminal C signal: Disconnection or short circuit)...18244
Failure code [D5ZHL6] (Terminal C signal: Signal does not match engine running or stopped state)...18251
Failure code [DA80L4] (Auto grease controller: ON/OFF signals disagree)...18256
Failure code [DAF3KK] (Machine monitor: Low source voltage (input)...18258
Failure code [DAF5KP] (Machine monitor: Low output voltage)...18262
Failure code [DAFRKR] (CAN communication with machine monitor: Defective communication (Abnormality in target component system)...18266
Troubleshooting by failure code (Display of code), Part 5...18271
Failure code [DAQ0KK] (Transmission controller: Low source voltage)...18274
Failure code [DAQ0KT] (Transmission controller: Abnormality in controller)...18278
Failure code [DAQ2KK] (Transmission controller load power supply line: Low source voltage (input)...18279
Failure code [DAQ9KQ] (Transmission controller model selection: Disagreement of model selection signals)...18282
Failure code [DAQRKR] (CAN communication with transmission controller: Defective communication (Abnormality in target component system)...18283
Failure code [DAQRMA] (Transmission controller option setting: Malfunction)...18289
Failure code [DB2RKR] (CAN communication with engine controller: Defective communication (Abnormality in target component system)...18290
Failure code [DB90KK] Work equipment controller: Low source voltage (input)...18294
Failure code [DB90KT] Work equipment controller: Abnormality in controller...18296
Failure code [DB92KK] Work equipment controller load power supply line: Low source voltage (input)...18297
Failure code [DB95KX] Work equipment controller power supply output: Out of input signal range...18299
Failure code [DB99KQ] (Work equipment controller model selection: Disagreement in model selection signals)...18302
Failure code [DB9RKR] CAN communication with work equipment controller: Defective communication (Abnormality in target component system)...18303
Failure code [DB9RMA] (Work equipment controller option setting: Malfunction)...18305
Failure code [DB9RMC] (CAN communication with transmission controller, engine controller and machine monitor: Defective operation)...18306
Failure code [DD15LD] ■ switch (Panel switch 1): Switch is kept pressed for long time...18310
Failure code [DD16LD] <> switch (Panel switch 2): Switch is kept pressed for long time...18313
Failure code [DD17LD] < switch (Panel switch 3): Switch is kept pressed for long time...18316
Failure code [DD18LD] > switch (Panel switch 4): Switch is kept pressed for long time...18319
Failure code [DD1ALD] Remote positioner raise/lower set switch (raise): Switch is kept pressed for long time...18322
Failure code [DD1BLD] Remote positioner raise/lower set switch (lower): Switch is kept pressed for long time...18324
Failure code [DD1CLD] Load meter subtotal switch: Switch is kept pressed for long time...18326
Failure code [DD1FLD] Load meter mode selector switch (A/B): Switch is kept pressed for long time...18328
Failure code [DD1GLD] Load meter mode selector switch (+/-): Switch is kept pressed for long time...18330
Failure code [DD1HLD] (Load meter display selector switch: Switch is kept pressed for long time)...18332
Failure code [DD1NLD] (Fan reverse switch: Switch is kept pressed for long time)...18334
Failure code [DD1NL4] (Fan automatic reverse switch: Switch is kept pressed for long time)...18336
Failure code [DDB6L4] (Parking brake switch (Neutralizer): ON/OFF signals disagree)...18338
Troubleshooting by failure code (Display of code), Part 6...18343
Failure code [DDE5MA] (Emergency steering drive switch: Malfunction)...18346
Failure code [DDK3KA] (Right FNR switch: Disconnection)...18349
Failure code [DDK4KA] (Joystick steering FNR switch: Disconnection)...18352
Failure code [DDK5L4] (Joystick steering shift-up/down switch: ON/OFF signals disagree)...18355
Failure code [DDK6KA] (FNR lever switch: Disconnection)...18357
Failure code [DDK6KB] (FNR lever switch: Short circuit)...18364
Failure code [DDS5KA] (Steering pressure switch: Disconnected)...18368
Failure code [DDS5KB] (Steering pressure switch: Grounded)...18370
Failure code [DDT0L4] (Shift mode selector switch: ON/OFF signals disagree)...18372
Failure code [DDT4LD] (Transmission cut-off set switch: Switch is kept pressed for long time)...18375
Failure code [DDW9LD] (Kick-down switch: Switch is kept pressed for long time)...18378
Failure code [DDWLLD] (Hold switch: Switch is kept pressed for long time)...18381
Failure code [DDY0LD] (Load meter cancel switch: Switch is kept pressed for long time)...18384
Failure code [DF10KA] (Transmission shift lever switch: Disconnected)...18386
Failure code [DF10KB] (Transmission shift lever switch: Short circuit)...18390
Failure code [DGF1KA] (Transmission oil temperature sensor: Disconnected)...18393
Failure code [DGF1KB] (Transmission oil temperature sensor: Short circuit)...18396
Failure code [DGH2KX] (Hydraulic oil temperature sensor: Out of input signal range)...18399
Failure code [DGR2KA] (Rear brake oil temperature sensor: Disconnected)...18401
Failure code [DGR2KX] (Rear brake oil temperature sensor: Out of input signal range)...18403
Failure code [DGT1KX] (Torque converter oil temperature sensor: Out of input signal range)...18405
Failure code [DH21KA] (Loader pump pressure sensor: Disconnection)...18408
Failure code [DH21KB] (Loader pump pressure sensor: Power supply line short)...18410
Troubleshooting by failure code (Display of code), Part 7...18413
Failure code [DHPCKX] (Lift arm cylinder bottom pressure sensor: Out of input signal range)...18416
Failure code [DHPDKX] (Lift arm cylinder head pressure sensor: Out of input signal range)...18418
Failure code [DHT1KX] (Transmission cut-off pressure sensor: Out of input signal range)...18420
Failure code [DHT8KA] (Steering pump pressure sensor: Disconnection)...18424
Failure code [DHT8KB] (Steering pump pressure sensor: Short circuit)...18426
Failure code [DK59KA] (Lift arm EPC lever potentiometer (Main): Disconnection)...18428
Failure code [DK59KY] (Lift arm EPC lever potentiometer (Main): Short circuit with power supply line)...18431
Failure code [DK59L8] (Lift arm EPC lever potentiometer (Main): Analog signals disagree)...18434
Failure code [DK5AKA] (Lift arm EPC lever potentiometer (Sub): Disconnection)...18437
Failure code [DK5AKY] (Lift arm EPC lever potentiometer (Sub): Short circuit with power supply line)...18440
Failure code [DK5BKA] (Bucket EPC lever potentiometer (Main): Disconnection)...18443
Failure code [DK5BKY] (Bucket EPC lever potentiometer (Main): Short circuit with power supply line)...18446
Failure code [DK5BL8] (Bucket EPC lever potentiometer (Main): Analog signals disagree)...18449
Failure code [DK5CKA] (Bucket EPC lever potentiometer (Sub): Disconnection)...18452
Failure code [DK5CKY] (Bucket EPC lever potentiometer (Sub): Short circuit with power supply line)...18455
Troubleshooting by failure code (Display of code), Part 8...18459
Failure code [DK5FKA] (Joystick steering EPC lever potentiometer (Main): Disconnection)...18461
Failure code [DK5FKY] (Joystick steering EPC lever potentiometer (Main): Short circuit with power supply line)...18464
Failure code [DK5GKA] (Joystick steering EPC lever potentiometer (Sub): Disconnection)...18466
Failure code [DK5GKY] (Joystick steering EPC lever potentiometer (Sub): Short circuit with power supply line)...18470
Failure code [DK5FL8] (Joystick steering EPC lever potentiometer (Main): Analog signals disagree)...18472
Failure code [DKA0KA] (Lift arm angle sensor: Disconnection)...18476
Failure code [DKA0KY] (Lift arm angle sensor: Short circuit with power supply line)...18478
Failure code [DKA0L0] (Lift arm angle sensor: Dislocation of sensor)...18480
Failure code [DLT3KA] (Transmission output shaft speed sensor: Disconnection)...18482
Failure code [DLT3LC] (Transmission output shaft speed sensor: Out of input signal range)...18484
Failure code [DT20KB] (Transmission cut-off indicator lamp: Short circuit)...18486
Failure code [DUM1KB] (Remote positioner raise set indicator lamp: Short circuit)...18490
Failure code [DUM2KB] (Remote positioner lower set indicator lamp: Short circuit)...18492
Failure code [DV00KB] (Alarm buzzer: Short circuit)...18494
Failure code [DW4PKA] (Lift arm raise EPC solenoid: Disconnection)...18496
Failure code [DW4PKB] (Lift arm raise EPC solenoid: Short circuit)...18498
Failure code [DW4PKY] (Lift arm raise EPC solenoid: Short circuit with power supply line)...18500
Failure code [DW4QKA] (Lift arm lower EPC solenoid: Disconnection)...18502
Failure code [DW4QKB] (Lift arm lower EPC solenoid: Short circuit)...18503
Failure code [DW4QKY] (Lift arm lower EPC solenoid: Short circuit with power supply line)...18504
Failure code [DW4RKA] (Bucket tilt EPC solenoid: Disconnection)...18506
Failure code [DW4RKB] (Bucket tilt EPC solenoid: Short circuit)...18507
Failure code [DW4RKY] (Bucket tilt EPC solenoid: Short circuit with power supply line)...18508
Troubleshooting by failure code (Display of code), Part 9...18511
Failure code [DW4SKA] (Bucket dump EPC solenoid: Disconnection)...18513
Failure code [DW4SKB] (Bucket dump EPC solenoid: Short circuit)...18514
Failure code [DW4SKY] (Bucket dump EPC solenoid: Short circuit with power supply line)...18516
Failure code [DW7BKA] (Fan reverse solenoid: Disconnection)...18518
Failure code [DW7BKB] (Fan reverse solenoid: Short circuit)...18520
Failure code [DW7BKY] (Fan reverse solenoid: Short circuit with power supply line)...18522
Failure code [DWM1KA] (Work equipment neutral lock solenoid: Disconnection)...18524
Failure code [DWM1KB] (Work equipment neutral lock solenoid: Short circuit)...18526
Failure code [DWM1KY] (Work equipment neutral lock solenoid: Short circuit with power supply line)...18528
Failure code [DWN6KA] (Lift arm raise magnet detent solenoid: Disconnection)...18530
Failure code [DWN6KB] (Lift arm raise magnet detent solenoid: Short circuit)...18532
Failure code [DWN6KY] (Lift arm raise magnet detent solenoid: Short circuit with power supply line)...18534
Failure code [DWN7KA] (Lift arm float magnet detent solenoid: Disconnection)...18536
Failure code [DWN7KB] (Lift arm float magnet detent solenoid: Short circuit)...18538
Failure code [DWN7KY] (Lift arm float magnet detent solenoid: Short circuit with power supply line)...18540
Failure code [DWN8KA] (Bucket tilt magnet detent solenoid: Disconnection)...18542
Failure code [DWN8KB] (Bucket tilt magnet detent solenoid: Short circuit)...18544
Failure code [DWN8KY] (Bucket tilt magnet detent solenoid: Shorted with the power source)...18546
Failure code [DX16KA] (Fan pump EPC solenoid: Disconnection) (WA380-6)...18548
Failure code [DX16KA] (Fan motor EPC solenoid: Disconnection) (WA380Z-6)...18549
Failure code [DX16KB] (Fan pump EPC solenoid: Short circuit) (WA380-6)...18550
Failure code [DX16KB] (Fan motor EPC solenoid: Short circuit) (WA380Z-6)...18551
Failure code [DX16KY] (Fan motor EPC solenoid: Short circuit with power supply line) (WA380Z-6)...18553
Failure code [DXA1KA] (Loader pump EPC solenoid: Disconnection)...18554
Failure code [DXA1KB] (Loader pump EPC solenoid: Short circuit)...18556
Failure code [DXH1KA] (Lockup ECMV solenoid: Disconnection)...18558
Failure code [DXH1KB] (Lockup ECMV solenoid: Short circuit)...18560
Failure code [DXH1KY] (Lockup ECMV solenoid: Short circuit with power supply line)...18562
Failure code [DXH4KA] (1st clutch ECMV solenoid: Disconnection)...18564
Failure code [DXH4KB] (1st clutch ECMV solenoid: Short circuit)...18566
Failure code [DXH4KY] (1st clutch ECMV solenoid: Short circuit with power supply line)...18568
Troubleshooting by failure code (Display of code), Part 10...18571
Failure code [DXH5KA] (2nd clutch ECMV solenoid: Disconnection)...18574
Failure code [DXH5KB] (2nd clutch ECMV solenoid: Short circuit)...18576
Failure code [DXH5KY] (2nd clutch ECMV solenoid: Short circuit with power supply line)...18578
Failure code [DXH6KA] (3rd clutch ECMV solenoid: Disconnection)...18580
Failure code [DXH6KB] (3rd clutch ECMV solenoid: Short circuit)...18582
Failure code [DXH6KY] (3rd clutch ECMV solenoid: Short circuit with power supply line)...18584
Failure code [DXH7KA] (R clutch ECMV solenoid: Disconnection)...18586
Failure code [DXH7KB] (R clutch ECMV solenoid: Short circuit)...18588
Failure code [DXH7KY] (R clutch ECMV solenoid: Short circuit with power supply line)...18590
Failure code [DXH8KA] (F clutch ECMV solenoid: Disconnection)...18592
Failure code [DXH8KB] (F clutch ECMV solenoid: Short circuit)...18594
Failure code [DXH8KY] (F clutch ECMV solenoid: Short circuit with power supply line)...18596
Failure code [DXHHKA] (4th clutch ECMV solenoid: Disconnection)...18598
Failure code [DXHHKB] (4th clutch ECMV solenoid: Short circuit)...18600
Failure code [DXHHKY] (4th clutch ECMV solenoid: Short circuit with power supply line)...18602
Failure code [DXHLKA] (Joystick steering right EPC solenoid: Disconnection)...18604
Failure code [DXHLKB] (Joystick steering right EPC solenoid: Short circuit)...18606
Failure code [DXHLKY] (Joystick steering right EPC solenoid: Short circuit with power supply line)...18608
Failure code [DXHMKA] (Joystick steering left EPC solenoid: Disconnection)...18610
Failure code [DXHMKB] (Joystick steering left EPC solenoid: Short circuit)...18612
Failure code [DXHMKY] (Joystick steering left EPC solenoid: Short circuit with power supply line)...18614
Failure code [DY30MA] Motor-driven emergency steering pump failure (During operation of machine)...18616
Failure code [DY30MC] Motor-driven emergency steering pump failure (Malfunction in manual mode)...18621
Troubleshooting of electrical system (E-mode)...18629
Installing positions of fuses...18631
Information in troubleshooting table...18636
E-1 Engine does not start...18637
E-2 Wiper does not operate...18650
E-3 Windshield washer does not operate...18655
E-4 Headlamp, clearance lamp, tail lamp, and license lamp do not light up or go off...18659
E-5 Working lamp does not light up or go off...18675
E-6 Turn signal lamp and hazard lamp do not light up or go off...18685
E-7 Brake lamp does not light or it keeps lighting up...18697
E-8 Backup lamp does not light or it keeps lighting up...18701
E-9 Backup buzzer does not sound or it keeps sounding...18705
E-10 Horn does not sound or it keeps sounding...18708
E-11 Alarm buzzer does not sound or it keeps sounding...18712
E-12 Air conditioner does not operate or stop...18714
E-13 The KOMTRAX system does not work properly...18718
E-14 When kick-down switch is turned ON, kick-down operation does not start...18721
E-15 When hold switch is pressed, holding operation does not start...18724
E-16 Transmission is kept in neutral, or brake drags when directional lever is operated while parking brake is applied...18727
E-17 Transmission cut-off mode cannot be set or reset...18730
E-18 Transmission cut-off set cannot be reset...18733
E-19 FNR switch mode cannot be set or reset...18736
E-20 Fan reverse function cannot be used or reset...18738
E-21 Discharge from loader pump does not rise from minimum level...18740
E-22 ECSS function cannot be used or reset...18742
E-23 When parking brake is turned ON, parking brake indicator lamp does not light up...18744
E-24 When emergency brake operates, brake oil pressure caution lamp does not operate...18748
E-25 Air cleaner clogging indicator lamp does not light up...18752
E-26 Radiator coolant level caution lamp does not light up...18755
E-27 Hydraulic oil temperature gauge does not rise and hydraulic oil temperature caution lamp does not light up...18757
E-28 Torque converter oil temperature gauge does not rise and torque converter oil temperature caution lamp does not light up...18759
E-29 Steering oil pressure caution lamp does not light up...18761
E-30 Abnormality in ■ switch (panel switch 1) input...18764
E-31 Abnormality in <> switch (panel switch 2) input...18767
名称未設定...18770
E-32 Abnormality in < switch (panel switch 3) input...18770
E-33 Abnormality in > switch (panel switch 4) input...18773
Troubleshooting of hydraulic and mechanical system (H-mode)...18777
Method of using troubleshooting chart...18779
Table of failure modes and causes...18782
H-1 The machine does not start...18790
H-2 Torque converter lockup is not switched off (engine stalls) [Machine with lockup clutch]...18792
H-3 Torque converter lockup is not switched on [Machine with lockup clutch]...18793
H-4 The travel speed is slow, the thrusting force is weak, the uphill traveling power is weak, and the gear is not shifted...18794
H-5 Shocks are large at the times of starting and shifting gear...18796
H-6 Time lag is large at the times of starting and shifting gear...18798
H-7 The torque converter oil temperature is high...18800
H-8 Steering does not turn...18801
H-9 Steering does not turn [Machine with joystick steering]...18802
H-10 Steering response is low...18803
H-11 Turning, response of steering is poor [machine with joystick steering]...18804
H-12 Steering is heavy...18805
H-13 When machine turns, it shakes or makes large shocks...18806
H-14 When machine turns, it shakes or makes large shocks [machine with joystick steering]...18807
H-15 The wheel brake does not work or does not work well...18808
H-16 The wheel brake is not released or it drags...18809
H-17 The parking brake does not work or does not work well...18810
H-18 The parking brake is not released or it drags (including emergency release system)...18811
H-19 Lift arm does not rise...18812
H-20 Lift arm speed is low or rising force of lift arm is insufficient...18813
H-21 When rising, the lift arm comes to move slowly at specific height...18814
H-22 The lift arm cylinder cannot hold down the bucket (Bucket floats)...18814
H-23 Hydraulic drifts of the lift arm is large...18814
H-24 The lift arm wobbles during operation...18814
H-25 Bucket does not tilt back...18815
H-26 Bucket speed is low or tilting back force is insufficient...18816
H-27 The bucket comes to operate slowly in the midst of tilting-back...18817
H-28 The bucket cylinder cannot hold down the bucket...18817
H-29 Hydraulic drifts of the bucket is large...18817
H-30 The bucket wobbles during travel with cargo (The work equipment valve is set to “HOLD”)...18817
H-31 Lift arm and bucket control levers do not move smoothly and are heavy...18818
H-32 During operation of the machine, engine speed lowers remarkably or engine stalls...18819
H-33 Large shock is made when work equipment starts and stops...18819
H-34 When work equipment circuit is relieved singly, other work equipment moves...18819
H-35 ECSS does not operate, and pitching, bouncing occur...18820
H-36 Fan revolution is abnormal (Fan sound/ vibration is abnormally large or engine overheats)...18821
Troubleshooting of engine (S-mode)...18823
Method of using troubleshooting charts...18825
S-1 Engine does not start easily...18828
S-2 Engine does not start...18829
S-3 Engine does not pick up smoothly...18832
S-4 Engine stops during operations...18833
S-5 Engine does not rotate smoothly...18834
S-6 Engine lacks output (or lacks power)...18835
S-7 Exhaust smoke is black (Incomplete combustion)...18836
S-8 Oil consumption is excessive (or exhaust smoke is blue)...18837
S-9 Engine oil becomes contaminated quickly...18838
S-10 Fuel consumption is excessive...18839
S-11 Coolant contains oil (blows back or reduces)...18840
S-12 Oil pressure drops...18841
S-13 Oil level rises (Water, fuel in oil)...18842
S-14 Coolant temperature rises too high (Overheating)...18843
S-15 Abnormal noise is made...18844
S-16 Vibration is excessive...18845
50 Disassembly and assembly...0
General information on disassembly and assembly...18847
How to read this manual...18848
Coating materials list...18850
Special tools list...18853
Sketches of special tools...18856
Engine and cooling system...18863
Removal and installation of fuel supply pump assembly...18864
Removal and installation of fuel injector assembly...18868
Removal and installation of cylinder head assembly...18882
Removal and installation of engine hood assembly...18904
Removal and installation of radiator assembly...18909
Removal and installation of air aftercooler...18914
Removal and installation of hydraulic oil cooler assembly...18916
Removal and installation of engine assembly...18918
Removal and installation of engine front oil seal assembly...18923
Removal and installation of engine rear oil seal assembly...18927
Removal and installation of cooling fan and fan motor assembly...18930
Removal and installation of fuel tank assembly...18936
Power train...18939
Removal and installation of torque converter and transmission assembly...18940
Disassembly and assembly of torque converter assembly (Standard specification)...18946
Disassembly and assembly of torque converter assembly (Lockup specification)...18950
Disassembly and assembly of transmission assembly...18956
Disassembly and assembly of transmission clutch pack assembly...18973
Disassembly and assembly of parking brake assembly...18992
Removal and installation of front axle assembly...19001
Removal and installation of rear axle assembly...19003
Disassembly and assembly of axle housing...19006
Disassembly and assembly of differential assembly...19015
Steering system...19035
Removal and installation of steering valve assembly...19036
Brake system...19041
Removal and installation of parking brake discs and plates...19042
Undercarriage and frame...19047
Removal and installation of center hinge pin...19048
Removal and installation of counterweight...19056
Hydraulic system...19061
Removal and installation of work equipment control valve assembly...19062
Removal and installation of power train pump and work equipment pump assembly...19068
Removal and installation of steering pump and cooling fan pump assembly...19069
Removal and installation of hydraulic tank assembly...19071
Work equipment...19075
Removal and installation of work equipment assembly...19076
Disassembly and assembly of hydraulic cylinder assembly...19080
Cab and its attachments...19089
Removal and installation of operator's cab and floor frame assembly...19090
Removal and installation of operator's cab glass (stuck glass)...19094
Disassembly and assembly of operator's seat assembly (Standard specification)...19102
Removal and installation of air conditioner unit assembly...19144
Electrical system...19149
Removal and installation of engine controller assembly...19150
90 Diagrams and drawings...0
Hydraulic diagrams and drawings...19153
Power train hydraulic circuit diagram...19154
Automatic greasing circuit diagram...19156
Hydraulic circuit diagram (WA380-6)...19159
Hydraulic circuit diagram (WA380Z-6)...19160
Electrical diagrams and drawings...19163
Electrical circuit diagram (WA380-6)...19165
Electrical circuit diagram (WA380Z-6)...19179
Work equipment controller system electrical circuit diagram (WA380-6)...19188
Connector list and stereogram (WA380-6)...19189
Connector list and stereogram (WA380Z-6)...19190
SEN06411-02 - Wheel Loader WA380-6, WA380Z-6 Shop Manual...19193
Cover...19193
00 Index and foreword...0
Index...19195
Composition of shop manual...19196
Table of contents...19198
Foreword and general information...19211
Safety notice...19212
How to read the shop manual...19217
Explanation of terms for maintenance standard...19219
Handling of electric equipment and hydraulic component...19221
Handling of connectors newly used for engines...19230
How to read electric wire code...19233
Precautions when carrying out operation...19236
Method of disassembling and connecting push-pull type coupler...19239
Standard tightening torque table...19242
Conversion table...19246
01 Specification...19253
Specification and technical data...0
Specification dimension drawing...19254
Specifications...19256
Weight table...19264
Table of fuel, coolant and lubricants...19268
10 Structure, function and maintenance standard...0
Engine and cooling system...19271
Engine mount and transmission mount...19272
Cooling system...19273
Cooling fan pump...19275
Brake and fan pump...19282
Cooling fan motor...19283
Power train...19297
Power train...19299
Power train system diagram...19300
Drive shaft...19303
Power train piping diagram...19304
Torque converter...19306
Transmission...19314
Flow control valve...19348
Valve assembly...19350
ECMV...19351
Main relief valve and torque converter relief valve...19359
Differential...19363
Limited slip differential...19367
Final drive...19374
Steering system...19379
Steering piping diagram...19380
Steering column...19382
Steering pump...19384
Steering valve...19404
Orbit-roll valve...19419
Stop valve...19427
Steering relief valve...19428
Steering cylinder...19429
Emergency steering motor...19431
Emergency steering pump...19432
Joystick steering lever linkage...19433
Steering electric lever...19434
Joystick EPC valve...19435
Brake system...19437
Brake piping diagram...19438
Charge valve...19440
Brake valve...19447
Accumulator (for brake)...19452
Brake...19454
Parking brake control...19459
Parking brake...19460
Parking brake solenoid valve...19462
Emergency parking brake release valve...19464
Undercarriage and frame...19467
Axle mount and center hinge pin...19468
Tires...19473
Hydraulic system, Part 1...19475
Hydraulic piping diagram...19476
Work equipment control lever linkage...19482
Hydraulic tank...19485
Power train pump...19489
Work equipment pump...19490
Work equipment control valve...19512
CLSS...19540
Each function and operation of each valve...19544
Hydraulic system, Part 2...19577
PPC valve...19578
Stabilizer valve...19584
Accumulator (for PPC circuit)...19590
Accumulator (for ECSS)...19591
Work equipment PPC cut-off solenoid valve...19592
Work equipment...19595
Work equipment linkage...19596
Bucket...19600
Bucket positioner and boom kick-out...19602
Work equipment cylinder...19608
Cab and its attachments...19611
Cab...19613
Air conditioner...19614
Electrical system, Part 1...19635
Machine monitor system...19636
Machine monitor...19644
Electrical system, Part 2...19703
Electrical system (Transmission controller system)...19704
Transmission controller...19748
Electrical system (Work equipment controller system)...19752
Work equipment controller...19758
Electrical system, Part 3...19761
Electric transmission control...19762
Kickdown switch and hold switch...19766
Multi-function knob...19768
Joystick steering knob...19769
KOMTRAX terminal system...19770
Engine starting circuit...19772
Engine stopping circuit...19776
Preheating circuit...19778
Engine power mode selector circuit...19779
Engine output derating function...19780
Automatic warm-up function...19780
Parking brake circuit...19782
Sensor...19784
20 Standard value table...0
Standard service value table...19795
Standard service value table for engine...19796
Standard service value table for chassis...19798
30 Testing and adjusting...0
Testing and adjusting, Part 1...19811
Tools for testing, adjusting, and troubleshooting...19813
Testing engine speed...19820
Testing exhaust gas color...19822
Adjusting valve clearance...19824
Testing compression pressure...19829
Testing blow-by pressure...19835
Testing engine oil pressure...19836
Testing intake air (boost) pressure...19838
Handling fuel system equipment...19840
Releasing residual pressure in fuel system...19840
Testing fuel pressure...19841
Testing fuel delivery, return and leak amount...19846
Bleeding air from fuel circuit...19854
Testing leakage in fuel system...19856
Handling reduced cylinder mode operation...19857
Handling no-injection cranking operation...19857
Handling controller voltage circuit...19858
Testing muffler (main body) and muffler stack for looseness or damage...19858
Testing muffler for functions...19859
Testing cylinder head and manifold parts for tightness...19859
Testing engine piping for damage and tightness...19860
Testing and adjusting air conditioner compressor belt tension...19861
Replacing alternator belt...19862
Adjusting transmission speed sensor...19863
Adjusting length of directional lever...19864
Adjusting length of gearshift lever...19864
Testing directional lever...19865
Testing and adjusting power train oil pressure...19866
Procedure for flushing torque converter and transmission hydraulic circuit...19895
Method of moving machine when transmission valve is broken...19896
Testing axle end for oil leakage...19900
Testing drive shaft for looseness, backlash and damage...19900
Testing and adjusting steering stop valve...19901
Testing and adjusting steering wheel...19903
Testing and adjusting steering oil pressure...19905
Bleeding air from steering circuit...19908
Testing and adjusting, Part 2...19911
Testing hydraulic drive fan...19913
Bleeding air from hydraulic drive fan circuit...19917
Testing brake pedal...19920
Testing and adjusting brake pedal linkage...19921
Testing brake performance...19922
Testing and adjusting accumulator charge pressure...19923
Testing wheel brake oil pressure...19925
Testing wheel brake oil pressure drop...19926
Testing wear of wheel brake disc...19928
Bleeding air from wheel brake circuit...19929
Releasing residual pressure in brake accumulator circuit...19930
Testing parking brake performance...19931
Testing parking brake oil pressure...19932
Testing wear of parking brake disc...19934
Method of releasing parking brake manually...19935
Testing and adjusting work equipment control lever...19936
Testing and adjusting worke quipment PPC oil pressure...19937
Testing and adjusting work equipment oil pressure...19943
Bleeding air from work equipment circuit...19947
Releasing residual pressure in work equipment circuit...19948
Procedure for testing of nitrogen gas pressure and charging of nitrogen gas of ECSS (Electronically Controlled Suspension System) accumulator...19950
Testing and adjusting bucket positioner...19956
Testing and adjusting boom kick-out...19958
Checking proximity switch operation pilot lamp...19959
Procedure for testing diodes...19960
Preparation work for troubleshooting for electric system...19961
How to start operation of KOMTRAX terminal...19970
Lamp display of KOMTRAX terminal...19975
Testing and adjusting, Part 3...19979
Adjusting replaced, reassembled or added sensor, controller, etc. with machine monitor...19981
Special functions of machine monitor (EMMS)...19983
Pm-clinic inspection table...20052
40 Troubleshooting...0
Failure code table and fuse locations...20059
Failure code table...20060
Fuse locations...20077
General information on troubleshooting...20083
Points to remember when troubleshooting...20084
Sequence of events in troubleshooting...20085
Testing before troubleshooting...20087
Classification and procedures of troubleshooting...20088
Information contained in troubleshooting table...20091
Connection table for connector pin numbers...20093
T- branch box and T- branch adapter table...20129
Troubleshooting by failure code (Display of code), Part 1...20133
Failure code [1500L0] (TORQFLOW transmission: Double meshing)...20135
Failure code [15SAL1] (ECMV F clutch: When command current is OFF, fill signal is ON)...20136
Failure code [15SALH] (ECMV F clutch: When command current is ON, fill signal is OFF)...20138
Failure code [15SBL1] (ECMV R clutch: When command current is OFF, fill signal is ON)...20140
Failure code [15SBLH] (ECMV R clutch: When command current is ON, fill signal is OFF)...20142
Failure code [15SEL1] (ECMV 1st clutch: When command current is OFF, fill signal is ON)...20144
Failure code [15SELH] (ECMV 1st clutch: When command current is ON, fill signal is OFF)...20146
Failure code [15SFL1] (ECMV 2nd clutch: When command current is OFF, fill signal is ON)...20148
Failure code [15SFLH] (ECMV 2nd clutch: When command current is ON, fill signal is OFF)...20150
Failure code [15SGL1] (ECMV 3rd clutch: When command current is OFF, fill signal is ON)...20152
Failure code [15SGLH] (ECMV 3rd clutch: When command current is ON, fill signal is OFF)...20154
Failure code [15SHL1] (ECMV 4th clutch: When command current is OFF, fill signal is ON)...20156
Failure code [15SHLH] (ECMV 4th clutch: When command current is ON, fill signal is OFF)...20158
Failure code [2F00MA] (Parking brake: Malfunction)...20160
Failure code [2G43ZG] (Accumulator: Low oil pressure)...20163
Failure code [44K0L4] (Bucket positioner: ON/OFF signals disagree)...20167
Troubleshooting by failure code (Display of code), Part 2...20171
Failure code [AA1ANX] (Air cleaner: Clogging)...20174
Failure code [AB00L6] (Alternator: Signal disagrees with operating state of engine)...20177
Failure code [AB00MA] (Alternator: Malfunction)...20181
Failure code [B@BAZG] (Rotation derating by low engine oil pressure)...20185
Failure code [B@BAZK] (Engine oil: Low level)...20186
Failure code [B@BCNS] (Coolant: Overheating)...20187
Failure code [B@BCZK] (Coolant: Low level)...20189
Failure code [B@BEBF] (Water in fuel error)...20192
Failure code [B@C7NS] (Brake oil: Overheating)...20194
Failure code [b@CENS] (Torque converter oil: Overheating)...20196
Failure code [B@CENS] (Torque converter oil: Overheating)...20199
Failure code [B@HANS] (Hydraulic oil: Overheating)...20202
Failure code [CA111] (Abnormality in engine controller)...20204
Failure code [CA115] (Engine Ne or Bkup speed sensor error)...20205
Failure code [CA122] (Charge pressure sensor high error)...20206
Failure code [CA123] (Charge pressure sensor low error)...20208
Failure code [CA131] (Throttle sensor high error)...20210
Failure code [CA132] (Throttle sensor low error)...20212
Failure code [CA144] (Coolant sensor high error)...20214
Failure code [CA145] (Coolant sensor low error)...20216
Failure code [CA153] (Charge temperature sensor high error)...20218
Failure code [CA154] (Charge temperature sensor low error)...20220
Failure code [CA155] (Derating of speed by abnormally high charge temperature)...20222
Failure code [CA187] (Sensor power supply 2 low error)...20224
Failure code [CA221] (Atmospheric pressure sensor high error)...20226
Failure code [CA222] (Atmospheric sensor low error)...20228
Failure code [CA227] (Sensor power supply 2 high error)...20230
Failure code [CA234] (Engine overspeed)...20231
Failure code [CA238] (Ne speed sensor power supply error)...20232
Troubleshooting by failure code (Display of code), Part 3...20235
Failure code [CA271] (IMV/PCV1 Short circuit)...20237
Failure code [CA272] (IMV/PCV1 Disconnection)...20238
Failure code [CA322] (Injector #1 open/short error)...20240
Failure code [CA323] (Injector #5 open/short error)...20242
Failure code [CA324] (Injector #3 open/short error)...20244
Failure code [CA325] (Injector #6 open/short error)...20246
Failure code [CA331] (Injector #2 open/short error)...20248
Failure code [CA332] (Injector #4 open/short error)...20250
Failure code [CA342] (Calibration code inconsistency)...20252
Failure code [CA351] (Injectors drive circuit error)...20254
Failure code [CA352] (Sensor power supply 1 low error)...20257
Failure code [CA386] (Sensor power supply 1 high error)...20259
Failure code [CA428] (Abnormally high level in water sensor)...20260
Failure code [CA429] (Abnormally low level in water sensor)...20261
Failure code [CA431] (Idle validation switch error)...20262
Failure code [CA432] (Idle validation action error)...20265
Failure code [CA435] (Engine oil pressure switch error)...20267
Failure code [CA441] (Battery voltage low error)...20268
Failure code [CA442] (Battery voltage high error)...20272
Failure code [CA449] Common rail pressure high error 2...20275
Failure code [CA451] (Common rail pressure sensor high error)...20277
Failure code [CA452] (Common rail pressure sensor low error)...20279
Failure code [CA488] (Derating of torque by abnormally high charge temperature)...20281
Failure code [CA553] (Common rail pressure high error 1)...20282
Failure code [CA559] (Supply pump pressure very low error)...20283
Failure code [CA689] (Engine Ne speed sensor error)...20284
Failure code [CA731] (Engine Bkup speed sensor phase error)...20287
Failure code [CA757] (All continuous data lost error)...20288
Failure code [CA778] (Engine Bkup speed sensor error)...20292
Failure code [CA1633] (KOMNET datalink timeout error)...20295
Failure code [CA2185] (Throttle sensor power supply voltage high error)...20298
Failure code [CA2186] (Throttle sensor power supply voltage low error)...20299
Troubleshooting by failure code (Display of code), Part 4...20301
Failure code [CA2249] (Supply pump pressure very low error 2)...20303
Failure code [CA2311] (Abnormality in IMV solenoid)...20304
Failure code [CA2555] (Intake heater relay disconnection error)...20306
Failure code [CA2556] (Intake heater relay short circuit error)...20309
Failure code [D150KA] (Emergency steering relay: Disconnection)...20312
Failure code [D150KB] (Emergency steering relay: Short circuit)...20315
Failure code [D150KY] (Emergency steering relay: Short circuit with power supply line)...20318
Failure code [D160KA] (Backup lamp relay: Disconnection)...20321
Failure code [D160KB] (Backup lamp relay: Short circuit)...20324
Failure code [D191KA] (Joystick steering neutral safety relay: Disconnection)...20327
Failure code [D191KB] (Joystick steering neutral safety relay: Short circuit)...20329
Failure code [D191KY] (Joystick steering neutral safety relay: Short circuit with power supply line)...20331
Failure code [D192KA] (ECSS solenoid: Disconnection)...20333
Failure code [D192KB] (ECSS solenoid: Short circuit)...20334
Failure code [D192KY] (ECSS solenoid: Short circuit with power supply line)...20335
Failure code [D193KA] (Joystick steering solenoid cut relay: Disconnection)...20336
Failure code [D193KB] (Joystick steering solenoid cut relay: Short circuit)...20338
Failure code [D193KY] (Joystick steering solenoid cut relay: Short circuit with power supply line)...20340
Failure code [D5ZHKA] (Terminal C signal: Disconnection)...20343
Failure code [D5ZHKB] (Terminal C signal: Short circuit)...20349
Failure code [D5ZHKZ] (Terminal C signal: Disconnection or short circuit)...20354
Failure code [D5ZHL6] (Terminal C signal: Signal does not match engine running or stopped state)...20361
Failure code [DA80L4] (Auto grease controller: ON/OFF signals disagree)...20366
Failure code [DAF3KK] (Machine monitor: Low source voltage (input)...20368
Failure code [DAF5KP] (Machine monitor: Low output voltage)...20372
Failure code [DAFRKR] (CAN communication with machine monitor: Defective communication (Abnormality in target component system)...20376
Troubleshooting by failure code (Display of code), Part 5...20381
Failure code [DAQ0KK] (Transmission controller: Low source voltage)...20384
Failure code [DAQ0KT] (Transmission controller: Abnormality in controller)...20388
Failure code [DAQ2KK] (Transmission controller load power supply line: Low source voltage (input)...20389
Failure code [DAQ9KQ] (Transmission controller model selection: Disagreement of model selection signals)...20392
Failure code [DAQRKR] (CAN communication with transmission controller: Defective communication (Abnormality in target component system)...20393
Failure code [DAQRMA] (Transmission controller option setting: Malfunction)...20399
Failure code [DB2RKR] (CAN communication with engine controller: Defective communication (Abnormality in target component system)...20400
Failure code [DB90KK] Work equipment controller: Low source voltage (input)...20404
Failure code [DB90KT] Work equipment controller: Abnormality in controller...20406
Failure code [DB92KK] Work equipment controller load power supply line: Low source voltage (input)...20407
Failure code [DB95KX] Work equipment controller power supply output: Out of input signal range...20409
Failure code [DB99KQ] (Work equipment controller model selection: Disagreement in model selection signals)...20412
Failure code [DB9RKR] CAN communication with work equipment controller: Defective communication (Abnormality in target component system)...20413
Failure code [DB9RMA] (Work equipment controller option setting: Malfunction)...20415
Failure code [DB9RMC] (CAN communication with transmission controller, engine controller and machine monitor: Defective operation)...20416
Failure code [DD15LD] ■ switch (Panel switch 1): Switch is kept pressed for long time...20420
Failure code [DD16LD] <> switch (Panel switch 2): Switch is kept pressed for long time...20423
Failure code [DD17LD] < switch (Panel switch 3): Switch is kept pressed for long time...20426
Failure code [DD18LD] > switch (Panel switch 4): Switch is kept pressed for long time...20429
Failure code [DD1ALD] Remote positioner raise/lower set switch (raise): Switch is kept pressed for long time...20432
Failure code [DD1BLD] Remote positioner raise/lower set switch (lower): Switch is kept pressed for long time...20434
Failure code [DD1CLD] Load meter subtotal switch: Switch is kept pressed for long time...20436
Failure code [DD1FLD] Load meter mode selector switch (A/B): Switch is kept pressed for long time...20438
Failure code [DD1GLD] Load meter mode selector switch (+/-): Switch is kept pressed for long time...20440
Failure code [DD1HLD] (Load meter display selector switch: Switch is kept pressed for long time)...20442
Failure code [DD1NLD] (Fan reverse switch: Switch is kept pressed for long time)...20444
Failure code [DD1NL4] (Fan automatic reverse switch: Switch is kept pressed for long time)...20446
Failure code [DDB6L4] (Parking brake switch (Neutralizer): ON/OFF signals disagree)...20448
Troubleshooting by failure code (Display of code), Part 6...20453
Failure code [DDE5MA] (Emergency steering drive switch: Malfunction)...20456
Failure code [DDK3KA] (Right FNR switch: Disconnection)...20459
Failure code [DDK4KA] (Joystick steering FNR switch: Disconnection)...20462
Failure code [DDK5L4] (Joystick steering shift-up/down switch: ON/OFF signals disagree)...20465
Failure code [DDK6KA] (FNR lever switch: Disconnection)...20467
Failure code [DDK6KB] (FNR lever switch: Short circuit)...20474
Failure code [DDS5KA] (Steering pressure switch: Disconnected)...20478
Failure code [DDS5KB] (Steering pressure switch: Grounded)...20480
Failure code [DDT0L4] (Shift mode selector switch: ON/OFF signals disagree)...20482
Failure code [DDT4LD] (Transmission cut-off set switch: Switch is kept pressed for long time)...20485
Failure code [DDW9LD] (Kick-down switch: Switch is kept pressed for long time)...20488
Failure code [DDWLLD] (Hold switch: Switch is kept pressed for long time)...20491
Failure code [DDY0LD] (Load meter cancel switch: Switch is kept pressed for long time)...20494
Failure code [DF10KA] (Transmission shift lever switch: Disconnected)...20496
Failure code [DF10KB] (Transmission shift lever switch: Short circuit)...20500
Failure code [DGF1KA] (Transmission oil temperature sensor: Disconnected)...20503
Failure code [DGF1KB] (Transmission oil temperature sensor: Short circuit)...20506
Failure code [DGH2KX] (Hydraulic oil temperature sensor: Out of input signal range)...20509
Failure code [DGR2KA] (Rear brake oil temperature sensor: Disconnected)...20511
Failure code [DGR2KX] (Rear brake oil temperature sensor: Out of input signal range)...20513
Failure code [DGT1KX] (Torque converter oil temperature sensor: Out of input signal range)...20515
Failure code [DH21KA] (Loader pump pressure sensor: Disconnection)...20518
Failure code [DH21KB] (Loader pump pressure sensor: Power supply line short)...20520
Troubleshooting by failure code (Display of code), Part 7...20523
Failure code [DHPCKX] (Lift arm cylinder bottom pressure sensor: Out of input signal range)...20526
Failure code [DHPDKX] (Lift arm cylinder head pressure sensor: Out of input signal range)...20528
Failure code [DHT1KX] (Transmission cut-off pressure sensor: Out of input signal range)...20530
Failure code [DHT8KA] (Steering pump pressure sensor: Disconnection)...20534
Failure code [DHT8KB] (Steering pump pressure sensor: Short circuit)...20536
Failure code [DK59KA] (Lift arm EPC lever potentiometer (Main): Disconnection)...20538
Failure code [DK59KY] (Lift arm EPC lever potentiometer (Main): Short circuit with power supply line)...20541
Failure code [DK59L8] (Lift arm EPC lever potentiometer (Main): Analog signals disagree)...20544
Failure code [DK5AKA] (Lift arm EPC lever potentiometer (Sub): Disconnection)...20547
Failure code [DK5AKY] (Lift arm EPC lever potentiometer (Sub): Short circuit with power supply line)...20550
Failure code [DK5BKA] (Bucket EPC lever potentiometer (Main): Disconnection)...20553
Failure code [DK5BKY] (Bucket EPC lever potentiometer (Main): Short circuit with power supply line)...20556
Failure code [DK5BL8] (Bucket EPC lever potentiometer (Main): Analog signals disagree)...20559
Failure code [DK5CKA] (Bucket EPC lever potentiometer (Sub): Disconnection)...20562
Failure code [DK5CKY] (Bucket EPC lever potentiometer (Sub): Short circuit with power supply line)...20565
Troubleshooting by failure code (Display of code), Part 8...20569
Failure code [DK5FKA] (Joystick steering EPC lever potentiometer (Main): Disconnection)...20571
Failure code [DK5FKY] (Joystick steering EPC lever potentiometer (Main): Short circuit with power supply line)...20574
Failure code [DK5GKA] (Joystick steering EPC lever potentiometer (Sub): Disconnection)...20576
Failure code [DK5GKY] (Joystick steering EPC lever potentiometer (Sub): Short circuit with power supply line)...20580
Failure code [DK5FL8] (Joystick steering EPC lever potentiometer (Main): Analog signals disagree)...20582
Failure code [DKA0KA] (Lift arm angle sensor: Disconnection)...20586
Failure code [DKA0KY] (Lift arm angle sensor: Short circuit with power supply line)...20588
Failure code [DKA0L0] (Lift arm angle sensor: Dislocation of sensor)...20590
Failure code [DLT3KA] (Transmission output shaft speed sensor: Disconnection)...20592
Failure code [DLT3LC] (Transmission output shaft speed sensor: Out of input signal range)...20594
Failure code [DT20KB] (Transmission cut-off indicator lamp: Short circuit)...20596
Failure code [DUM1KB] (Remote positioner raise set indicator lamp: Short circuit)...20600
Failure code [DUM2KB] (Remote positioner lower set indicator lamp: Short circuit)...20602
Failure code [DV00KB] (Alarm buzzer: Short circuit)...20604
Failure code [DW4PKA] (Lift arm raise EPC solenoid: Disconnection)...20606
Failure code [DW4PKB] (Lift arm raise EPC solenoid: Short circuit)...20608
Failure code [DW4PKY] (Lift arm raise EPC solenoid: Short circuit with power supply line)...20610
Failure code [DW4QKA] (Lift arm lower EPC solenoid: Disconnection)...20612
Failure code [DW4QKB] (Lift arm lower EPC solenoid: Short circuit)...20613
Failure code [DW4QKY] (Lift arm lower EPC solenoid: Short circuit with power supply line)...20614
Failure code [DW4RKA] (Bucket tilt EPC solenoid: Disconnection)...20616
Failure code [DW4RKB] (Bucket tilt EPC solenoid: Short circuit)...20617
Failure code [DW4RKY] (Bucket tilt EPC solenoid: Short circuit with power supply line)...20618
Troubleshooting by failure code (Display of code), Part 9...20621
Failure code [DW4SKA] (Bucket dump EPC solenoid: Disconnection)...20623
Failure code [DW4SKB] (Bucket dump EPC solenoid: Short circuit)...20624
Failure code [DW4SKY] (Bucket dump EPC solenoid: Short circuit with power supply line)...20626
Failure code [DW7BKA] (Fan reverse solenoid: Disconnection)...20628
Failure code [DW7BKB] (Fan reverse solenoid: Short circuit)...20630
Failure code [DW7BKY] (Fan reverse solenoid: Short circuit with power supply line)...20632
Failure code [DWM1KA] (Work equipment neutral lock solenoid: Disconnection)...20634
Failure code [DWM1KB] (Work equipment neutral lock solenoid: Short circuit)...20636
Failure code [DWM1KY] (Work equipment neutral lock solenoid: Short circuit with power supply line)...20638
Failure code [DWN6KA] (Lift arm raise magnet detent solenoid: Disconnection)...20640
Failure code [DWN6KB] (Lift arm raise magnet detent solenoid: Short circuit)...20642
Failure code [DWN6KY] (Lift arm raise magnet detent solenoid: Short circuit with power supply line)...20644
Failure code [DWN7KA] (Lift arm float magnet detent solenoid: Disconnection)...20646
Failure code [DWN7KB] (Lift arm float magnet detent solenoid: Short circuit)...20648
Failure code [DWN7KY] (Lift arm float magnet detent solenoid: Short circuit with power supply line)...20650
Failure code [DWN8KA] (Bucket tilt magnet detent solenoid: Disconnection)...20652
Failure code [DWN8KB] (Bucket tilt magnet detent solenoid: Short circuit)...20654
Failure code [DWN8KY] (Bucket tilt magnet detent solenoid: Shorted with the power source)...20656
Failure code [DX16KA] (Fan pump EPC solenoid: Disconnection) (WA380-6)...20658
Failure code [DX16KA] (Fan motor EPC solenoid: Disconnection) (WA380Z-6)...20659
Failure code [DX16KB] (Fan pump EPC solenoid: Short circuit) (WA380-6)...20660
Failure code [DX16KB] (Fan motor EPC solenoid: Short circuit) (WA380Z-6)...20661
Failure code [DX16KY] (Fan motor EPC solenoid: Short circuit with power supply line) (WA380Z-6)...20663
Failure code [DXA1KA] (Loader pump EPC solenoid: Disconnection)...20664
Failure code [DXA1KB] (Loader pump EPC solenoid: Short circuit)...20666
Failure code [DXH1KA] (Lockup ECMV solenoid: Disconnection)...20668
Failure code [DXH1KB] (Lockup ECMV solenoid: Short circuit)...20670
Failure code [DXH1KY] (Lockup ECMV solenoid: Short circuit with power supply line)...20672
Failure code [DXH4KA] (1st clutch ECMV solenoid: Disconnection)...20674
Failure code [DXH4KB] (1st clutch ECMV solenoid: Short circuit)...20676
Failure code [DXH4KY] (1st clutch ECMV solenoid: Short circuit with power supply line)...20678
Troubleshooting by failure code (Display of code), Part 10...20681
Failure code [DXH5KA] (2nd clutch ECMV solenoid: Disconnection)...20684
Failure code [DXH5KB] (2nd clutch ECMV solenoid: Short circuit)...20686
Failure code [DXH5KY] (2nd clutch ECMV solenoid: Short circuit with power supply line)...20688
Failure code [DXH6KA] (3rd clutch ECMV solenoid: Disconnection)...20690
Failure code [DXH6KB] (3rd clutch ECMV solenoid: Short circuit)...20692
Failure code [DXH6KY] (3rd clutch ECMV solenoid: Short circuit with power supply line)...20694
Failure code [DXH7KA] (R clutch ECMV solenoid: Disconnection)...20696
Failure code [DXH7KB] (R clutch ECMV solenoid: Short circuit)...20698
Failure code [DXH7KY] (R clutch ECMV solenoid: Short circuit with power supply line)...20700
Failure code [DXH8KA] (F clutch ECMV solenoid: Disconnection)...20702
Failure code [DXH8KB] (F clutch ECMV solenoid: Short circuit)...20704
Failure code [DXH8KY] (F clutch ECMV solenoid: Short circuit with power supply line)...20706
Failure code [DXHHKA] (4th clutch ECMV solenoid: Disconnection)...20708
Failure code [DXHHKB] (4th clutch ECMV solenoid: Short circuit)...20710
Failure code [DXHHKY] (4th clutch ECMV solenoid: Short circuit with power supply line)...20712
Failure code [DXHLKA] (Joystick steering right EPC solenoid: Disconnection)...20714
Failure code [DXHLKB] (Joystick steering right EPC solenoid: Short circuit)...20716
Failure code [DXHLKY] (Joystick steering right EPC solenoid: Short circuit with power supply line)...20718
Failure code [DXHMKA] (Joystick steering left EPC solenoid: Disconnection)...20720
Failure code [DXHMKB] (Joystick steering left EPC solenoid: Short circuit)...20722
Failure code [DXHMKY] (Joystick steering left EPC solenoid: Short circuit with power supply line)...20724
Failure code [DY30MA] Motor-driven emergency steering pump failure (During operation of machine)...20726
Failure code [DY30MC] Motor-driven emergency steering pump failure (Malfunction in manual mode)...20731
Troubleshooting of electrical system (E-mode)...20739
Installing positions of fuses...20741
Information in troubleshooting table...20746
E-1 Engine does not start...20747
E-2 Wiper does not operate...20760
E-3 Windshield washer does not operate...20765
E-4 Headlamp, clearance lamp, tail lamp, and license lamp do not light up or go off...20769
E-5 Working lamp does not light up or go off...20785
E-6 Turn signal lamp and hazard lamp do not light up or go off...20795
E-7 Brake lamp does not light or it keeps lighting up...20807
E-8 Backup lamp does not light or it keeps lighting up...20811
E-9 Backup buzzer does not sound or it keeps sounding...20815
E-10 Horn does not sound or it keeps sounding...20818
E-11 Alarm buzzer does not sound or it keeps sounding...20822
E-12 Air conditioner does not operate or stop...20824
E-13 The KOMTRAX system does not work properly...20828
E-14 When kick-down switch is turned ON, kick-down operation does not start...20831
E-15 When hold switch is pressed, holding operation does not start...20834
E-16 Transmission is kept in neutral, or brake drags when directional lever is operated while parking brake is applied...20837
E-17 Transmission cut-off mode cannot be set or reset...20840
E-18 Transmission cut-off set cannot be reset...20843
E-19 FNR switch mode cannot be set or reset...20846
E-20 Fan reverse function cannot be used or reset...20848
E-21 Discharge from loader pump does not rise from minimum level...20850
E-22 ECSS function cannot be used or reset...20852
E-23 When parking brake is turned ON, parking brake indicator lamp does not light up...20854
E-24 When emergency brake operates, brake oil pressure caution lamp does not operate...20858
E-25 Air cleaner clogging indicator lamp does not light up...20862
E-26 Radiator coolant level caution lamp does not light up...20865
E-27 Hydraulic oil temperature gauge does not rise and hydraulic oil temperature caution lamp does not light up...20867
E-28 Torque converter oil temperature gauge does not rise and torque converter oil temperature caution lamp does not light up...20869
E-29 Steering oil pressure caution lamp does not light up...20871
E-30 Abnormality in ■ switch (panel switch 1) input...20874
E-31 Abnormality in <> switch (panel switch 2) input...20877
名称未設定...20880
E-32 Abnormality in < switch (panel switch 3) input...20880
E-33 Abnormality in > switch (panel switch 4) input...20883
Troubleshooting of hydraulic and mechanical system (H-mode)...20887
Method of using troubleshooting chart...20889
Table of failure modes and causes...20892
H-1 The machine does not start...20900
H-2 Torque converter lockup is not switched off (engine stalls) [Machine with lockup clutch]...20902
H-3 Torque converter lockup is not switched on [Machine with lockup clutch]...20903
H-4 The travel speed is slow, the thrusting force is weak, the uphill traveling power is weak, and the gear is not shifted...20904
H-5 Shocks are large at the times of starting and shifting gear...20906
H-6 Time lag is large at the times of starting and shifting gear...20908
H-7 The torque converter oil temperature is high...20910
H-8 Steering does not turn...20911
H-9 Steering does not turn [Machine with joystick steering]...20912
H-10 Steering response is low...20913
H-11 Turning, response of steering is poor [machine with joystick steering]...20914
H-12 Steering is heavy...20915
H-13 When machine turns, it shakes or makes large shocks...20916
H-14 When machine turns, it shakes or makes large shocks [machine with joystick steering]...20917
H-15 The wheel brake does not work or does not work well...20918
H-16 The wheel brake is not released or it drags...20919
H-17 The parking brake does not work or does not work well...20920
H-18 The parking brake is not released or it drags (including emergency release system)...20921
H-19 Lift arm does not rise...20922
H-20 Lift arm speed is low or rising force of lift arm is insufficient...20923
H-21 When rising, the lift arm comes to move slowly at specific height...20924
H-22 The lift arm cylinder cannot hold down the bucket (Bucket floats)...20924
H-23 Hydraulic drifts of the lift arm is large...20924
H-24 The lift arm wobbles during operation...20924
H-25 Bucket does not tilt back...20925
H-26 Bucket speed is low or tilting back force is insufficient...20926
H-27 The bucket comes to operate slowly in the midst of tilting-back...20927
H-28 The bucket cylinder cannot hold down the bucket...20927
H-29 Hydraulic drifts of the bucket is large...20927
H-30 The bucket wobbles during travel with cargo (The work equipment valve is set to “HOLD”)...20927
H-31 Lift arm and bucket control levers do not move smoothly and are heavy...20928
H-32 During operation of the machine, engine speed lowers remarkably or engine stalls...20929
H-33 Large shock is made when work equipment starts and stops...20929
H-34 When work equipment circuit is relieved singly, other work equipment moves...20929
H-35 ECSS does not operate, and pitching, bouncing occur...20930
H-36 Fan revolution is abnormal (Fan sound/ vibration is abnormally large or engine overheats)...20931
Troubleshooting of engine (S-mode)...20933
Method of using troubleshooting charts...20935
S-1 Engine does not start easily...20938
S-2 Engine does not start...20939
S-3 Engine does not pick up smoothly...20942
S-4 Engine stops during operations...20943
S-5 Engine does not rotate smoothly...20944
S-6 Engine lacks output (or lacks power)...20945
S-7 Exhaust smoke is black (Incomplete combustion)...20946
S-8 Oil consumption is excessive (or exhaust smoke is blue)...20947
S-9 Engine oil becomes contaminated quickly...20948
S-10 Fuel consumption is excessive...20949
S-11 Coolant contains oil (blows back or reduces)...20950
S-12 Oil pressure drops...20951
S-13 Oil level rises (Water, fuel in oil)...20952
S-14 Coolant temperature rises too high (Overheating)...20953
S-15 Abnormal noise is made...20954
S-16 Vibration is excessive...20955
50 Disassembly and assembly...0
General information on disassembly and assembly...20957
How to read this manual...20958
Coating materials list...20960
Special tools list...20963
Sketches of special tools...20966
Engine and cooling system...20973
Removal and installation of fuel supply pump assembly...20974
Removal and installation of fuel injector assembly...20978
Removal and installation of cylinder head assembly...20992
Removal and installation of engine hood assembly...21014
Removal and installation of radiator assembly...21019
Removal and installation of air aftercooler...21024
Removal and installation of hydraulic oil cooler assembly...21026
Removal and installation of engine assembly...21028
Removal and installation of engine front oil seal assembly...21033
Removal and installation of engine rear oil seal assembly...21037
Removal and installation of cooling fan and fan motor assembly...21040
Removal and installation of fuel tank assembly...21046
Power train...21049
Removal and installation of torque converter and transmission assembly...21050
Disassembly and assembly of torque converter assembly (Standard specification)...21056
Disassembly and assembly of torque converter assembly (Lockup specification)...21060
Disassembly and assembly of transmission assembly...21066
Disassembly and assembly of transmission clutch pack assembly...21083
Disassembly and assembly of parking brake assembly...21102
Removal and installation of front axle assembly...21111
Removal and installation of rear axle assembly...21113
Disassembly and assembly of axle housing...21116
Disassembly and assembly of differential assembly...21125
Steering system...21145
Removal and installation of steering valve assembly...21146
Brake system...21151
Removal and installation of parking brake discs and plates...21152
Undercarriage and frame...21157
Removal and installation of center hinge pin...21158
Removal and installation of counterweight...21166
Hydraulic system...21171
Removal and installation of work equipment control valve assembly...21172
Removal and installation of power train pump and work equipment pump assembly...21178
Removal and installation of steering pump and cooling fan pump assembly...21179
Removal and installation of hydraulic tank assembly...21181
Work equipment...21185
Removal and installation of work equipment assembly...21186
Disassembly and assembly of hydraulic cylinder assembly...21190
Cab and its attachments...21199
Removal and installation of operator's cab and floor frame assembly...21200
Removal and installation of operator's cab glass (stuck glass)...21204
Disassembly and assembly of operator's seat assembly (Standard specification)...21212
Removal and installation of air conditioner unit assembly...21254
Electrical system...21259
Removal and installation of engine controller assembly...21260
90 Diagrams and drawings...0
Hydraulic diagrams and drawings...21263
Power train hydraulic circuit diagram...21264
Automatic greasing circuit diagram...21266
Hydraulic circuit diagram (WA380-6)...21269
Hydraulic circuit diagram (WA380Z-6)...21270
Electrical diagrams and drawings...21273
Electrical circuit diagram...21275
Work equipment controller system electrical circuit diagram...21298
Connector list and stereogram...21299
SEN06573 - Wheel Loader WA380-8 Shop Manual...21303
COVER...21303
00 INDEX AND FOREWORD...21305
INDEX...21306
ABBREVIATION LIST...21326
FOREWORD, SAFETY, BASIC INFORMATION...21332
HOW TO READ THE SHOP MANUAL...21332
SAFETY NOTICE FOR OPERATION...21334
PRECAUTIONS TO PREVENT FIRE...21342
ACTIONS IF FIRE OCCURS...21344
PRECAUTIONS FOR DISPOSING OF WASTE MATERIALS...21345
ACTIONS TAKEN TO MEET EXHAUST GAS REGULATIONS...21346
PRECAUTIONS FOR DEF...21347
GENERAL CHARACTER AND PRECAUTIONS FOR HANDLING...21347
PRECAUTIONS FOR ADDING...21347
PRECAUTIONS FOR STORING...21347
PRECAUTIONS FOR FIRE HAZARD AND LEAKAGE...21347
THE OTHER PRECAUTIONS...21347
STORE AdBlue/DEF...21348
PRECAUTIONS FOR HANDLING HYDRAULIC EQUIPMENT...21349
PRECAUTIONS FOR DISCONNECTION AND CONNECTION OF PIPINGS...21352
PRECAUTIONS FOR HANDLING ELECTRICAL EQUIPMENT...21358
PRECAUTIONS FOR HANDLING FUEL SYSTEM EQUIPMENT...21360
PRECAUTIONS FOR HANDLING INTAKE SYSTEM EQUIPMENT...21361
PRACTICAL USE OF KOMTRAX...21362
DISCONNECT AND CONNECT PUSH-PULL TYPE COUPLER...21363
METHOD FOR DISCONNECTING AND CONNECTING TYPE 1 PUSH-PULL TYPE COUPLER...21363
METHOD FOR DISCONNECTING AND CONNECTING TYPE 2 PUSH-PULL TYPE COUPLER...21364
METHOD FOR DISCONNECTING AND CONNECTING TYPE 3 PUSH-PULL TYPE COUPLER...21365
PRECAUTIONS FOR DISCONNECTION AND CONNECTION OF CONNECTORS...21367
METHOD FOR DISCONNECTING AND CONNECTING DEUTSCH CONNECTOR...21371
METHOD FOR DISCONNECTING AND CONNECTING SLIDE LOCK TYPE CONNECTOR...21372
METHOD FOR DISCONNECTING AND CONNECTING CONNECTOR WITH LOCK TO PULL...21374
METHOD FOR DISCONNECTING AND CONNECTING CONNECTOR WITH LOCK TO PUSH...21375
METHOD FOR DISCONNECTING AND CONNECTING CONNECTOR WITH HOUSING TO ROTATE...21377
HOW TO READ ELECTRICAL WIRE CODE...21378
EXPLANATION OF TERMS FOR MAINTENANCE STANDARD...21382
STANDARD TIGHTENING TORQUE TABLE...21385
CONVERSION TABLE...21392
01 SPECIFICATIONS...21397
CONTENTS...21398
ABBREVIATION LIST...21399
SPECIFICATIONS...21405
SPECIFICATION DRAWING...21405
SPECIFICATION DRAWING: WA380-8...21405
SPECIFICATIONS...21407
SPECIFICATIONS: WA380-8...21407
WEIGHT TABLE...21412
WEIGHT TABLE: WA380-8...21412
TABLE OF FUEL, COOLANT, AND LUBRICANTS...21414
10 STRUCTURE AND FUNCTION...21417
CONTENTS...21418
ABBREVIATION LIST...21423
UREA SCR SYSTEM...21429
LAYOUT DRAWING OF UREA SCR SYSTEM...21429
UREA SCR SYSTEM DIAGRAM...21433
FUNCTION OF UREA SCR SYSTEM...21434
FUNCTION OF AdBlue/DEF SYSTEM...21434
INDUCEMENT STRATEGY...21437
COMPONENT PARTS OF UREA SCR SYSTEM...21452
AdBlue/DEF MIXING TUBE...21452
SCR ASSEMBLY...21453
AdBlue/DEF TANK...21455
AdBlue/DEF PUMP...21457
AdBlue/DEF INJECTOR...21458
AdBlue/DEF HOSE...21459
AdBlue/DEF TANK HEATING VALVE...21460
BOOT-UP SYSTEM...21461
LAYOUT DRAWING OF BOOT-UP SYSTEM...21461
SYSTEM OPERATING LAMP SYSTEM...21462
SYSTEM OPERATING LAMP SYSTEM DIAGRAM...21462
FUNCTION OF SYSTEM OPERATING LAMP SYSTEM...21462
BATTERY DISCONNECT SWITCH...21463
LAYOUT DRAWING OF BATTERY DISCONNECT SWITCH...21463
FUNCTION OF BATTERY DISCONNECT SWITCH...21463
PREHEATING SYSTEM...21465
PREHEATING SYSTEM DIAGRAM...21465
FUNCTION OF AUTOMATIC PREHEATING SYSTEM...21465
OPERATION OF AUTOMATIC PREHEATING SYSTEM...21465
FUNCTION OF MANUAL PREHEATING SYSTEM...21466
OPERATION OF MANUAL PREHEATING SYSTEM...21466
ENGINE SYSTEM...21467
LAYOUT DRAWING OF ENGINE SYSTEM...21467
FUNCTION OF ENGINE SYSTEM...21468
ENGINE CONTROL SYSTEM...21469
ENGINE CONTROL SYSTEM DIAGRAM...21469
FUNCTION OF ENGINE CONTROL SYSTEM...21470
OPERATION OF ENGINE CONTROL SYSTEM...21473
ENGINE POWER MODE SELECTOR SYSTEM...21475
ENGINE POWER MODE SELECTOR SYSTEM DIAGRAM...21475
FUNCTION OF ENGINE POWER MODE SELECTOR SYSTEM...21475
OPERATION OF ENGINE POWER MODE SELECTOR SYSTEM...21475
AUTOMATIC IDLE STOP SYSTEM...21477
FUNCTION OF AUTOMATIC IDLE STOP SYSTEM...21477
COMPONENT PARTS OF ENGINE SYSTEM...21478
VGT...21478
EGR SYSTEM...21482
EGR VALVE...21484
EGR COOLER...21486
KCCV SYSTEM...21488
KCCV VENTILATOR...21490
KDPF...21492
COOLING SYSTEM...21496
LAYOUT DRAWING OF COOLING SYSTEM...21496
SPECIFICATIONS OF COOLING SYSTEM...21497
COOLING FAN CONTROL SYSTEM...21499
COOLING FAN CONTROL SYSTEM DIAGRAM...21499
FUNCTION OF COOLING FAN CONTROL SYSTEM...21499
COMPONENT PARTS OF COOLING SYSTEM...21504
BRAKE AND COOLING FAN PUMP...21504
COOLING FAN MOTOR...21512
CONTROL SYSTEM...21518
LAYOUT DRAWING OF CONTROL SYSTEM...21518
MACHINE MONITOR SYSTEM...21520
MACHINE MONITOR SYSTEM DIAGRAM...21520
FUNCTION OF MACHINE MONITOR SYSTEM...21520
REARVIEW MONITOR SYSTEM...21522
REARVIEW MONITOR SYSTEM DIAGRAM...21522
FUNCTION OF REARVIEW MONITOR SYSTEM...21522
KOMTRAX SYSTEM...21523
KOMTRAX SYSTEM DIAGRAM...21523
FUNCTION OF KOMTRAX SYSTEM...21523
COMPONENT PARTS OF CONTROL SYSTEM...21524
MACHINE MONITOR...21524
SWITCH PANEL...21544
REARVIEW MONITOR...21545
REARVIEW CAMERA...21547
KOMTRAX TERMINAL...21548
TRANSMISSION CONTROLLER...21550
WORK EQUIPMENT CONTROLLER...21554
MONITOR CONTROLLER...21558
CAN TERMINATING RESISTOR...21563
ENGINE CONTROLLER...21564
ACCELERATOR PEDAL...21571
HYDRAULIC SYSTEM...21573
LAYOUT DRAWING OF HYDRAULIC SYSTEM...21573
CLSS...21574
STRUCTURE OF CLSS...21574
FUNCTION OF CLSS...21575
WORK EQUIPMENT PUMP AND STEERING PUMP CONTROL SYSTEM...21577
SWASH PLATE CONTROL FUNCTION OF WORK EQUIPMENT PUMP AND STEERING PUMP...21577
PICKUP ASSISTANCE CONTROL FUNCTION WHEN ENGINE SPEED IS LOW...21577
OVERHEAT PREVENTION FUNCTION OF WORK EQUIPMENT CIRCUIT...21577
COMPONENT PARTS OF HYDRAULIC SYSTEM...21578
HYDRAULIC TANK...21578
WORK EQUIPMENT PUMP...21581
STEERING PUMP...21595
POWER TRAIN CHARGE PUMP AND POWER TRAIN LUBRICATION PUMP...21607
CONTROL VALVE...21608
STABILIZER VALVE...21646
POWER TRAIN SYSTEM...21652
LAYOUT DRAWING OF POWER TRAIN SYSTEM...21652
OPERATION OF POWER TRAIN SYSTEM...21655
TRANSMISSION CONTROL SYSTEM...21656
TRANSMISSION CONTROL SYSTEM DIAGRAM...21656
TRANSMISSION GEAR SHIFT CONTROL SYSTEM...21658
ELECTRIC MODULATION FUNCTION SYSTEM DIAGRAM...21658
ELECTRIC MODULATION FUNCTION...21659
DISPLAY FUNCTION OF GEAR SHIFT...21659
AUTOMATIC GEAR SHIFT FUNCTION...21659
SHIFT HOLD FUNCTION...21660
KICKDOWN FUNCTION...21660
AUTOMATIC KICKDOWN FUNCTION...21661
TORQUE CONVERTER LOCKUP FUNCTION...21661
HUNTING PREVENTION FUNCTION...21662
ADJUSTING FUNCTION OF TRANSMISSION INITIAL LEARNING AND ECMV CURRENT...21662
SHIFT POINT CHANGING FUNCTION...21662
4TH GEAR SPEED LIMITATION FUNCTION...21662
TRANSMISSION PROTECTION FUNCTION...21664
PROTECTION FUNCTION WHEN TRAVEL DIRECTION IS CHANGED...21664
SHIFT DOWN PROTECTION FUNCTION...21664
ENGINE OVERRUN PREVENTION FUNCTION...21665
MAXIMUM SPEED LIMITATION FUNCTION...21665
NEUTRALIZER FUNCTION...21665
DIRECTIONAL SELECTOR SWITCH CONTROL FUNCTION...21667
TRANSMISSION CUT-OFF FUNCTION...21669
COMPONENT PARTS OF POWER TRAIN SYSTEM...21671
DRIVE SHAFT...21671
TORQUE CONVERTER...21673
LOCKUP CLUTCH ECMV...21676
TRANSMISSION...21679
TRANSMISSION CONTROL VALVE...21695
FORWARD AND REVERSE CLUTCH ECMV AND GEAR SPEED CLUTCH ECMV...21697
MAIN RELIEF VALVE AND TORQUE CONVERTER RELIEF VALVE...21702
AXLE...21704
CONVENTIONAL DIFFERENTIAL...21707
LIMITED SLIP DIFFERENTIAL...21710
FINAL DRIVE...21714
COMBINATION SWITCH...21716
SHIFT HOLD SWITCH...21720
KICKDOWN SWITCH...21721
WORK EQUIPMENT SYSTEM...21722
LAYOUT DRAWING OF WORK EQUIPMENT SYSTEM...21722
WORK EQUIPMENT SYSTEM DIAGRAM...21724
WORK EQUIPMENT CONTROL SYSTEM...21726
WORK EQUIPMENT SPEED PATTERN CONTROL FUNCTION BY WORK EQUIPMENT LEVER STROKE...21726
WORK EQUIPMENT LEVER DETENT POSITION AND WORK EQUIPMENT STARTUP CURRENT CONTROL FUNCTION...21727
WORK EQUIPMENT LEVER OPERATING FUNCTION SYSTEM DIAGRAM...21728
WORK EQUIPMENT LEVER OPERATION FUNCTION...21729
BUCKET PRIORITY CONTROL FUNCTION...21729
BOOM STOP MODULATION FUNCTION...21729
WORK EQUIPMENT NEUTRAL LOCK SYSTEM...21731
WORK EQUIPMENT NEUTRAL LOCK SYSTEM DIAGRAM...21731
FUNCTION OF WORK EQUIPMENT NEUTRAL LOCK SYSTEM...21731
REMOTE POSITIONER SYSTEM...21733
REMOTE BUCKET POSITIONER SYSTEM DIAGRAM...21733
FUNCTION OF REMOTE BUCKET POSITIONER SYSTEM...21733
REMOTE BOOM POSITIONER SYSTEM DIAGRAM...21734
FUNCTION OF REMOTE BOOM POSITIONER SYSTEM...21734
BUCKET POSITIONER AND BOOM POSITIONER...21738
STRUCTURE OF BUCKET POSITIONER AND BOOM POSITIONER...21738
AUTO-DIGGING SYSTEM...21739
AUTO-DIGGING SYSTEM DIAGRAM...21739
FUNCTION OF AUTO-DIGGING SYSTEM...21739
SEMI AUTO-DIGGING SYSTEM...21741
SEMI AUTO-DIGGING SYSTEM DIAGRAM...21741
FUNCTION OF SEMI AUTO-DIGGING SYSTEM...21741
ECSS...21743
ECSS DIAGRAM...21743
FUNCTION OF ECSS...21743
OPERATION OF ECSS...21743
COMPONENT PARTS OF WORK EQUIPMENT SYSTEM...21745
WORK EQUIPMENT LOCK SOLENOID VALVE...21745
PILOT CIRCUIT ACCUMULATOR...21746
ECSS CIRCUIT ACCUMULATOR...21747
WORK EQUIPMENT ELECTRIC LEVER...21749
MULTIFUNCTION MONO-LEVER...21752
STEERING SYSTEM...21753
LAYOUT DRAWING OF STEERING SYSTEM...21753
SECONDARY STEERING SYSTEM...21754
SECONDARY STEERING SYSTEM DIAGRAM...21754
FUNCTION OF SECONDARY STEERING SYSTEM...21754
STEERING COLUMN...21756
STRUCTURE OF STEERING COLUMN...21756
COMPONENT PARTS OF STEERING SYSTEM...21757
ORBITROL VALVE...21757
STOP VALVE...21761
STEERING VALVE...21762
SECONDARY STEERING PUMP...21775
SECONDARY STEERING MOTOR...21776
BRAKE SYSTEM...21777
LAYOUT DRAWING OF BRAKE SYSTEM...21777
LAYOUT DRAWING OF BRAKE COOLING SYSTEM...21778
PARKING BRAKE CONTROL SYSTEM...21779
PARKING BRAKE CONTROL SYSTEM DIAGRAM...21779
OPERATION OF PARKING BRAKE CONTROL SYSTEM...21779
BRAKE COOLING CONTROL SYSTEM...21781
BRAKE COOLING CONTROL SYSTEM DIAGRAM...21781
FUNCTION OF BRAKE COOLING CONTROL SYSTEM...21781
COMPONENT PARTS OF BRAKE SYSTEM...21782
CHARGE VALVE...21782
PARKING BRAKE SOLENOID VALVE...21788
PARKING BRAKE EMERGENCY RELEASE VALVE...21790
BRAKE CIRCUIT ACCUMULATOR...21791
BRAKE VALVE...21793
BRAKE...21797
PARKING BRAKE...21800
FLOW PRIORITY VALVE...21802
BRAKE COOLING MOTOR...21804
BRAKE COOLING PUMP...21805
BRAKE COOLING OIL COOLER...21806
AUTO-GREASING SYSTEM...21807
LAYOUT DRAWING OF AUTO-GREASING SYSTEM...21807
SPECIFICATIONS OF AUTO-GREASING SYSTEM...21808
FUNCTION OF AUTO-GREASING SYSTEM...21810
COMPONENT PARTS OF AUTO-GREASING SYSTEM...21811
AUTO-GREASING PUMP...21811
UNDERCARRIAGE AND FRAME...21812
FRAME, AXLE MOUNT AND CENTER HINGE PIN...21812
STRUCTURE OF FRAME, AXLE MOUNT AND CENTER HINGE PIN...21812
FUNCTION OF FRAME, AXLE MOUNT AND CENTER HINGE PIN...21813
TIRE...21814
FEATURES OF RADIAL TIRE WHEN COMPARED WITH BIAS TIRE...21814
STRUCTURE OF RADIAL TIRE...21814
FUNCTION OF RADIAL TIRE...21814
STRUCTURE OF BIAS TIRE...21815
FUNCTION OF BIAS TIRE...21815
WORK EQUIPMENT...21816
STRUCTURE OF WORK EQUIPMENT...21816
STRUCTURE OF BUCKET...21817
CAB AND ITS ATTACHMENTS...21818
ROPS CAB...21818
STRUCTURE OF ROPS CAB...21818
FUNCTION OF ROPS CAB...21818
20 STANDARD VALUE TABLE...21819
CONTENTS...21820
ABBREVIATION LIST...21821
STANDARD VALUE TABLE FOR ENGINE...21827
STANDARD VALUE TABLE FOR ENGINE: WA380-8...21827
STANDARD VALUE TABLE FOR MACHINE...21831
STANDARD VALUE TABLE FOR MACHINE: WA380-8...21831
MACHINE POSTURE AND PROCEDURE FOR MEASURING PERFORMANCE...21850
STANDARD VALUE TABLE FOR ELECTRICAL...21853
STANDARD VALUE TABLE FOR ELECTRICITY...21853
30 TESTING AND ADJUSTING...21875
CONTENTS...21876
ABBREVIATION LIST...21880
RELATED INFORMATION ON TESTING AND ADJUSTING...21886
TOOLS FOR TESTING AND ADJUSTING...21886
SKETCH OF TOOLS FOR TESTING AND ADJUSTING...21895
ENGINE AND COOLING SYSTEM...21896
TEST ENGINE SPEED...21896
METHOD FOR TESTING ENGINE SPEED...21896
TEST BOOST PRESSURE...21902
METHOD FOR TESTING BOOST PRESSURE ON MACHINE MONITOR...21902
METHOD FOR TESTING BOOST PRESSURE BY TESTING TOOL...21903
TEST EXHAUST GAS TEMPERATURE...21906
METHOD FOR TESTING EXHAUST GAS TEMPERATURE...21906
TEST EXHAUST GAS COLOR...21908
METHOD FOR TESTING EXHAUST GAS COLOR BY HANDY SMOKE CHECKER...21908
METHOD FOR TESTING EXHAUST GAS COLOR BY SMOKE METER...21909
TEST AND ADJUST VALVE CLEARANCE...21911
METHOD FOR TESTING VALVE CLEARANCE...21911
METHOD FOR ADJUSTING VALVE CLEARANCE...21912
TEST COMPRESSION PRESSURE...21914
METHOD FOR TESTING COMPRESSION PRESSURE...21914
TEST BLOWBY PRESSURE...21919
METHOD FOR TESTING BLOWBY PRESSURE...21919
TEST ENGINE OIL PRESSURE...21922
METHOD FOR TESTING ENGINE OIL PRESSURE...21922
TEST EGR VALVE AND VGT OIL PRESSURE...21924
METHOD FOR TESTING EGR VALVE AND VGT OIL PRESSURE...21924
TEST FUEL PRESSURE...21926
METHOD FOR TESTING FUEL PRESSURE...21927
TEST FUEL DISCHARGE, RETURN AND LEAKAGE...21932
METHOD FOR TESTING FUEL DISCHARGE, RETURN AND LEAKAGE...21933
BLEED AIR FROM FUEL SYSTEM...21939
METHOD FOR BLEEDING AIR FROM FUEL SYSTEM...21939
TEST FUEL CIRCUIT FOR LEAKAGE...21941
METHOD FOR TESTING FUEL CIRCUIT FOR LEAKAGE...21941
HANDLE CYLINDER CUT-OUT MODE OPERATION...21943
HANDLE NO-INJECTION CRANKING OPERATION...21944
TEST KDPF, SCR AND MUFFLER STACK FOR LOOSENESS AND DAMAGE...21945
METHOD FOR TESTING KDPF, SCR AND MUFFLER STACK FOR LOOSENESS AND DAMAGE...21945
TEST INSTALLED CONDITION OF CYLINDER HEADS AND MANIFOLDS...21946
METHOD FOR TESTING INSTALLED CONDITION OF CYLINDER HEADS AND MANIFOLDS...21946
TEST ENGINE PIPING FOR DAMAGE AND LOOSENESS...21947
METHOD FOR TESTING ENGINE PIPING FOR DAMAGE AND LOOSENESS...21947
TEST AND ADJUST AIR CONDITIONER COMPRESSOR BELT TENSION...21948
METHOD FOR CHECKING AIR CONDITIONER COMPRESSOR BELT...21948
METHOD FOR ADJUSTING AIR CONDITIONER COMPRESSOR BELT...21948
TEST ALTERNATOR BELT...21950
METHOD FOR TESTING ALTERNATOR BELT...21950
TEST AUTOMATIC TENSIONER...21952
METHOD FOR TESTING AUTOMATIC TENSIONER...21952
WRITE ASH IN SOOT ACCUMULATION CORRECTION TO ENGINE CONTROLLER...21955
METHOD FOR WRITING ASH IN SOOT ACCUMULATION CORRECTION TO ENGINE CONTROLLER...21955
TEST SCR RELATED FUNCTIONS...21956
TEST AdBlue/DEF PUMP RAISED PRESSURE...21960
TEST INJECTION AMOUNT FROM AdBlue/DEF INJECTOR...21963
TEST AdBlue/DEF LINE HEATER RELAY 1...21968
TEST AdBlue/DEF LINE HEATER RELAY 2...21972
TEST AdBlue/DEF PUMP HEATER RELAY...21976
TEST AdBlue/DEF TANK HEATER VALVE...21980
TEST SCR NOx REMOVAL EFFICIENCY...21984
CLEAN AdBlue/DEF TANK...21988
METHOD FOR CLEANING AdBlue/DEF TANK...21988
POWER TRAIN...21992
TEST AND ADJUST POWER TRAIN OIL PRESSURE...21992
METHOD FOR TESTING POWER TRAIN OIL PRESSURE...21995
METHOD FOR ADJUSTING POWER TRAIN OIL PRESSURE...22009
ADJUST TRANSMISSION INPUT SPEED SENSOR...22011
METHOD FOR ADJUSTING TRANSMISSION INPUT SPEED SENSOR...22011
ADJUST TRANSMISSION OUTPUT SHAFT SPEED SENSOR...22012
METHOD FOR ADJUSTING TRANSMISSION OUTPUT SHAFT SPEED SENSOR...22012
FLUSH TORQUE CONVERTER AND TRANSMISSION HYDRAULIC CIRCUIT...22013
METHOD FOR FLUSHING TORQUE CONVERTER AND TRANSMISSION HYDRAULIC CIRCUIT...22013
MOVE DISABLED MACHINE DUE TO TRANSMISSION VALVE FAILURE...22015
METHOD FOR MOVING DISABLED MACHINE DUE TO TRANSMISSION VALVE FAILURE...22015
TEST DRIVE SHAFT FOR LOOSENESS, BACKLASH, AND DAMAGE...22017
METHOD FOR TESTING DRIVE SHAFT FOR LOOSENESS, BACKLASH, AND DAMAGE...22017
STEERING SYSTEM...22018
TEST STEERING WHEEL...22018
METHOD FOR TESTING STEERING WHEEL...22018
TEST AND ADJUST STEERING CIRCUIT OIL PRESSURE...22020
METHOD FOR TESTING STEERING CIRCUIT OIL PRESSURE...22020
METHOD FOR ADJUSTING STEERING CIRCUIT OIL PRESSURE...22022
BLEED AIR FROM STEERING CYLINDER CIRCUIT...22024
METHOD FOR BLEEDING AIR FROM STEERING CYLINDER CIRCUIT...22024
TEST AND ADJUST STEERING STOP VALVE...22025
METHOD FOR TESTING STEERING STOP VALVE...22025
METHOD FOR ADJUSTING STEERING STOP VALVE...22025
BRAKE SYSTEM...22026
RELEASE REMAINING PRESSURE IN BRAKE ACCUMULATOR CIRCUIT...22026
METHOD FOR RELEASING REMAINING PRESSURE IN BRAKE ACCUMULATOR CIRCUIT...22026
TEST WHEEL BRAKE OIL PRESSURE...22027
METHOD FOR TESTING WHEEL BRAKE OIL PRESSURE...22027
TEST AND ADJUST BRAKE ACCUMULATOR CHARGE PRESSURE...22029
METHOD FOR TESTING BRAKE ACCUMULATOR CHARGE PRESSURE...22029
METHOD FOR ADJUSTING BRAKE ACCUMULATOR CHARGE PRESSURE...22030
TEST AND CHARGE ACCUMULATOR NITROGEN GAS PRESSURE FOR BRAKE...22031
METHOD FOR TESTING ACCUMULATOR NITROGEN GAS PRESSURE FOR BRAKE...22031
METHOD FOR CHARGING ACCUMULATOR NITROGEN GAS PRESSURE FOR BRAKE...22033
TEST BRAKING PERFORMANCE...22036
METHOD FOR TESTING BRAKING PERFORMANCE...22036
TEST BRAKE PEDAL...22037
METHOD FOR TESTING BRAKE PEDAL...22037
BLEED AIR FROM BRAKE CIRCUIT...22038
METHOD FOR BLEEDING AIR FROM BRAKE CIRCUIT...22038
TEST AND ADJUST BRAKE PEDAL AND LINKAGE...22039
METHOD FOR TESTING BRAKE PEDAL AND LINKAGE...22039
METHOD FOR ADJUSTING BRAKE PEDAL AND LINKAGE...22039
TEST LOWERING OF WHEEL BRAKE PRESSURE...22040
METHOD FOR TESTING LOWERING OF WHEEL BRAKE PRESSURE...22041
TEST WEAR OF WHEEL BRAKE DISC...22043
METHOD FOR TESTING WEAR OF WHEEL BRAKE DISC...22043
TEST PARKING BRAKE OIL PRESSURE...22045
METHOD FOR TESTING PARKING BRAKE OIL PRESSURE...22045
TEST PARKING BRAKE PERFORMANCE...22047
METHOD FOR TESTING PARKING BRAKE PERFORMANCE...22047
RELEASE PARKING BRAKE MANUALLY...22048
METHOD FOR RELEASING PARKING BRAKE MANUALLY...22048
TEST WEAR AMOUNT OF PARKING BRAKE DISC...22050
METHOD FOR TESTING WEAR AMOUNT OF PARKING BRAKE DISC...22050
HYDRAULIC SYSTEM...22052
RELEASE REMAINING PRESSURE FROM WORK EQUIPMENT CIRCUIT...22052
METHOD FOR RELEASING REMAINING PRESSURE FROM WORK EQUIPMENT CIRCUIT...22052
TEST AND ADJUST WORK EQUIPMENT OIL PRESSURE...22054
METHOD FOR TESTING WORK EQUIPMENT OIL PRESSURE...22054
METHOD FOR ADJUSTING WORK EQUIPMENT OIL PRESSURE...22058
TEST AND ADJUST WORK EQUIPMENT EPC OIL PRESSURE...22060
METHOD FOR TESTING WORK EQUIPMENT EPC OIL PRESSURE...22060
METHOD FOR ADJUSTING WORK EQUIPMENT EPC OIL PRESSURE...22062
BLEED AIR FROM WORK EQUIPMENT CIRCUIT...22063
METHOD FOR BLEEDING REMAINING PRESSURE FROM WORK EQUIPMENT CIRCUIT...22063
TEST COOLING FAN SPEED...22064
METHOD FOR TESTING COOLING FAN SPEED...22064
TEST COOLING FAN CIRCUIT OIL PRESSURE...22066
METHOD FOR TESTING COOLING FAN CIRCUIT OIL PRESSURE...22066
BLEED AIR FROM COOLING FAN CIRCUIT...22069
METHOD FOR BLEEDING AIR FROM COOLING FAN CIRCUIT...22069
TEST ECSS ACCUMULATOR NITROGEN GAS PRESSURE AND CHARGE ACCUMULATOR WITH NITROGEN GAS...22071
METHOD FOR TESTING ECSS ACCUMULATOR NITROGEN GAS PRESSURE...22071
METHOD FOR CHARGING ECSS ACCUMULATOR WITH NITROGEN GAS...22073
WORK EQUIPMENT...22077
TEST AND ADJUST BUCKET POSITIONER DETECTION LEVER...22077
METHOD FOR TESTING BUCKET POTENTIOMETER LEVER...22077
METHOD FOR ADJUSTING BUCKET POTENTIOMETER LEVER...22077
TEST AND ADJUST BOOM POTENTIOMETER LEVER...22079
METHOD FOR TESTING BOOM POTENTIOMETER LEVER...22079
METHOD FOR ADJUSTING BOOM POTENTIOMETER LEVER...22079
CAB AND ITS ATTACHMENTS...22080
TEST DIRECTIONAL LEVER...22080
METHOD FOR TESTING DIRECTIONAL LEVER...22080
TEST WORK EQUIPMENT CONTROL LEVER...22081
METHOD FOR TESTING WORK EQUIPMENT CONTROL LEVER...22081
ELECTRICAL SYSTEM...22084
SET AND ADJUST EACH EQUIPMENT...22084
SET AND OPERATE MACHINE MONITOR...22088
OPERATOR MODE...22092
DISPLAY FUNCTION OF TECHNICIAN IDENTIFICATION STATUS SCREEN...22092
DISPLAY FUNCTION OF OPERATOR IDENTIFICATION INPUT SCREEN...22092
CHECKING FUNCTION BY LCD (LIQUID CRYSTAL DISPLAY)...22093
CHECKING FUNCTION OF SERVICE METER AND ODOMETER...22094
METHOD FOR SETTING USAGE LIMITATION AND CHANGING MAINTENANCE PASSWORD...22094
SERVICE MODE...22098
METHOD FOR OPERATING SERVICE MODE...22098
METHOD FOR CHECKING PRE-DEFINED MONITORING INFORMATION...22101
METHOD FOR CHECKING SELF-DEFINE MONITORING INFORMATION...22108
ABNORMALITY RECORD MENU...22123
METHOD FOR CONFIRMING MAINTENANCE RECORD...22128
METHOD FOR OPERATING MAINTENANCE MODE SETTING...22130
METHOD FOR OPERATING PHONE NUMBER ENTRY SETTING...22135
DEFAULT MENU...22137
DIAGNOSTIC TESTS MENU...22153
ADJUSTMENT MENU...22163
METHOD FOR PERFORMING NO-INJECTION CRANKING...22210
KOMTRAX SETTINGS MENU...22212
METHOD FOR DISPLAYING SERVICE MESSAGE...22214
METHOD FOR STARTING UP KOMTRAX TERMINAL...22216
ADJUST REARVIEW CAMERA ANGLE...22221
METHOD FOR ADJUSTING REAR VIEW CAMERA ANGLE...22221
HANDLE VOLTAGE CIRCUIT OF ENGINE CONTROLLER...22223
HANDLE BATTERY DISCONNECT SWITCH...22224
TEST DIODES...22225
METHOD FOR TESTING DIODE USING DIGITAL TESTER...22225
METHOD FOR TESTING DIODE USING ANALOG TESTER...22225
AUTO-GREASING DEVICE...22226
BLEED THE AIR OF AUTO-GREASING SYSTEM...22226
METHOD FOR BLEEDING THE AIR OF AUTO-GREASING SYSTEM...22226
CHANGING OF LUBRICATION TIME AND LUBRICATION INTERVAL TIMES...22229
METHOD FOR CHANGING THE LUBRICATION TIME AND LUBRICATION INTERVAL TIMES...22230
Pm CLINIC...22232
Pm CLINIC SERVICE...22232
Pm CLINIC CHECK SHEET: WA380-8...22235
40 TROUBLESHOOTING...22245
CONTENTS...22246
ABBREVIATION LIST...22259
RELATED INFORMATION ON TROUBLESHOOTING...22265
GENERAL TROUBLESHOOTING POINTS...22265
TROUBLESHOOTING POINTS FOR UREA SCR SYSTEM...22266
SEQUENCE OF EVENTS IN TROUBLESHOOTING...22278
CHECKS BEFORE TROUBLESHOOTING...22280
INSPECTION PROCEDURE BEFORE TROUBLESHOOTING...22282
WALK-AROUND CHECK...22282
TESTING IN ACCORDANCE WITH TESTING PROCEDURE...22284
CHECK FUEL LEVEL AND TYPE...22284
FUEL - CHECK FOR FOREIGN MATERIAL...22284
CHECK AdBule/DEF LEVEL AND TYPE...22285
CHECK FUEL PREFILTER...22285
CHECK MAIN FILTER...22287
OIL PAN - CHECK ENGINE OIL LEVEL AND TYPE...22288
CHECK COOLANT LEVEL (RESERVOIR TANK)...22289
CHECK CLOGGING OF AIR CLEANER...22290
OUTER ELEMENT - CLEAN...22290
REPLACE ELEMENT...22292
CHECK HYDRAULIC OIL LEVEL...22293
CHECK HYDRAULIC OIL STRAINER...22294
CHECK HYDRAULIC FILTER...22295
CHECK OIL LEVEL IN TRANSMISSION CASE...22297
CHECK OIL LEVEL IN FRONT AXLE CASE...22298
CHECK OIL LEVEL IN REAR AXLE CASE...22299
BLEED AIR FROM FUEL SYSTEM...22300
BLEED AIR FROM HYDRAULIC SYSTEM...22300
METHOD FOR CHECKING ELECTRIC EQUIPMENTmethod...22300
ELECTRICAL SYSTEM TROUBLESHOOTING - PREPARATION...22306
PROCEDURE FOR TESTING AND TROUBLESHOOTING...22318
SYMPTOM AND TROUBLESHOOTING NUMBERS...22320
INFORMATION DESCRIBED IN TROUBLESHOOTING TABLE...22325
TROUBLESHOOTING METHOD FOR OPEN CIRCUIT IN WIRING HARNESS OF PRESSURE SENSOR SYSTEM...22327
CONNECTORS LIST AND LAYOUT...22330
CONNECTOR CONTACT IDENTIFICATION...22350
T-BRANCH BOX AND T-BRANCH ADAPTER TABLE...22390
FUSE LOCATION TABLE...22396
PRECAUTIONS FOR CLEANING AND REPLACING KDPF (KCSF and KDOC)...22400
PREPARATION FOR TROUBLESHOOTING OF MACHINE MONITOR...22404
PROCEDURES FOR CREATING HARNESS CHECKER ON MACHINE MONITOR LCD UNIT...22406
PREPARATION OF SHORT CIRCUIT ELECTRICAL CONNECTOR (FOR FAILURE CODES [CA1883] AND [CA3135])...22412
FAILURE CODES TABLE...22414
TROUBLESHOOTING BY FAILURE CODE (DISPLAY OF CODE)...22438
FAILURE CODE [1500L0]...22438
FAILURE CODE [15SAL1]...22439
FAILURE CODE [15SALH]...22441
FAILURE CODE [15SBL1]...22443
FAILURE CODE [15SBLH]...22445
FAILURE CODE [15SEL1]...22447
FAILURE CODE [15SELH]...22449
FAILURE CODE [15SFL1]...22451
FAILURE CODE [15SFLH]...22453
FAILURE CODE [15SGL1]...22455
FAILURE CODE [15SGLH]...22457
FAILURE CODE [15SHL1]...22459
FAILURE CODE [15SHLH]...22461
FAILURE CODE [2F00MA]...22464
FAILURE CODE [2F00MB]...22468
FAILURE CODE [2G42ZG]...22471
FAILURE CODE [2G43ZG]...22473
FAILURE CODE [879AKA]...22475
FAILURE CODE [879AKB]...22477
FAILURE CODE [879BKA]...22479
FAILURE CODE [879BKB]...22481
FAILURE CODE [879CKA]...22483
FAILURE CODE [879CKB]...22485
FAILURE CODE [879DKZ]...22487
FAILURE CODE [879EMC]...22489
FAILURE CODE [879FMC]...22492
FAILURE CODE [989A00]...22495
FAILURE CODE [989L00]...22496
FAILURE CODE [989M00]...22497
FAILURE CODE [989N00]...22498
FAILURE CODE [A1U0N3]...22499
FAILURE CODE [A1U0N4]...22501
FAILURE CODE [AA10NX]...22503
FAILURE CODE [AB00KE]...22505
FAILURE CODE [AB00KY]...22507
FAILURE CODE [AQ10N3]...22509
FAILURE CODE [AS00N3]...22511
FAILURE CODE [AS00R2]...22513
FAILURE CODE [AS00R3]...22514
FAILURE CODE [AS00R4]...22515
FAILURE CODE [AS00R5]...22516
FAILURE CODE [AS00R6]...22517
FAILURE CODE [AS00ZK]...22518
FAILURE CODE [AS10KM]...22519
FAILURE CODE [AS10NR]...22520
FAILURE CODE [AS10NT]...22521
FAILURE CODE [B@BAZG]...22522
FAILURE CODE [B@BAZK]...22523
FAILURE CODE [B@BCNS]...22525
FAILURE CODE [B@BCZK]...22526
FAILURE CODE [B@C7NS]...22528
FAILURE CODE [B@CENS]...22530
FAILURE CODE [B@HANS]...22531
FAILURE CODE [CA115]...22532
FAILURE CODE [CA122]...22533
FAILURE CODE [CA123]...22535
FAILURE CODE [CA131]...22537
FAILURE CODE [CA132]...22539
FAILURE CODE [CA144]...22542
FAILURE CODE [CA145]...22544
FAILURE CODE [CA153]...22546
FAILURE CODE [CA154]...22549
FAILURE CODE [CA187]...22551
FAILURE CODE [CA221]...22553
FAILURE CODE [CA222]...22555
FAILURE CODE [CA227]...22557
FAILURE CODE [CA234]...22558
FAILURE CODE [CA238]...22559
FAILURE CODE [CA239]...22561
FAILURE CODE [CA249]...22563
FAILURE CODE [CA256]...22565
FAILURE CODE [CA271]...22567
FAILURE CODE [CA272]...22569
FAILURE CODE [CA322]...22571
FAILURE CODE [CA323]...22573
FAILURE CODE [CA324]...22575
FAILURE CODE [CA325]...22577
FAILURE CODE [CA331]...22579
FAILURE CODE [CA332]...22581
FAILURE CODE [CA343]...22583
FAILURE CODE [CA351]...22584
FAILURE CODE [CA352]...22585
FAILURE CODE [CA356]...22588
FAILURE CODE [CA357]...22590
FAILURE CODE [CA386]...22593
FAILURE CODE [CA428]...22594
FAILURE CODE [CA429]...22596
FAILURE CODE [CA431]...22598
FAILURE CODE [CA432]...22601
FAILURE CODE [CA435]...22605
FAILURE CODE [CA441]...22607
FAILURE CODE [CA442]...22609
FAILURE CODE [CA449]...22610
FAILURE CODE [CA451]...22611
FAILURE CODE [CA452]...22613
FAILURE CODE [CA488]...22615
FAILURE CODE [CA515]...22616
FAILURE CODE [CA516]...22618
FAILURE CODE [CA553]...22620
FAILURE CODE [CA555]...22621
FAILURE CODE [CA556]...22622
FAILURE CODE [CA559]...22623
FAILURE CODE [CA595]...22626
FAILURE CODE [CA687]...22627
FAILURE CODE [CA689]...22629
FAILURE CODE [CA691]...22632
FAILURE CODE [CA692]...22634
FAILURE CODE [CA697]...22636
FAILURE CODE [CA698]...22637
FAILURE CODE [CA731]...22638
FAILURE CODE [CA778]...22640
FAILURE CODE [CA1117]...22645
FAILURE CODE [CA1664]...22646
FAILURE CODE [CA1669]...22649
FAILURE CODE [CA1673]...22650
FAILURE CODE [CA1677]...22651
FAILURE CODE [CA1678]...22652
FAILURE CODE [CA1682]...22653
FAILURE CODE [CA1683]...22655
FAILURE CODE [CA1684]...22657
FAILURE CODE [CA1686]...22659
FAILURE CODE [CA1691]...22660
FAILURE CODE [CA1694]...22663
FAILURE CODE [CA1695]...22666
FAILURE CODE [CA1696]...22667
FAILURE CODE [CA1712]...22669
FAILURE CODE [CA1713]...22672
FAILURE CODE [CA1714]...22674
FAILURE CODE [CA1715]...22675
FAILURE CODE [CA1776]...22676
FAILURE CODE [CA1777]...22679
FAILURE CODE [CA1843]...22682
FAILURE CODE [CA1844]...22684
FAILURE CODE [CA1879]...22687
FAILURE CODE [CA1881]...22690
FAILURE CODE [CA1883]...22692
FAILURE CODE [CA1885]...22696
FAILURE CODE [CA1887]...22698
FAILURE CODE [CA1921]...22700
FAILURE CODE [CA1922]...22703
FAILURE CODE [CA1942]...22708
FAILURE CODE [CA1993]...22709
FAILURE CODE [CA2185]...22712
FAILURE CODE [CA2186]...22714
FAILURE CODE [CA2249]...22716
FAILURE CODE [CA2271]...22717
FAILURE CODE [CA2272]...22720
FAILURE CODE [CA2288]...22723
FAILURE CODE [CA2311]...22724
FAILURE CODE [CA2349]...22725
FAILURE CODE [CA2353]...22728
FAILURE CODE [CA2357]...22730
FAILURE CODE [CA2381]...22731
FAILURE CODE [CA2382]...22734
FAILURE CODE [CA2383]...22737
FAILURE CODE [CA2386]...22740
FAILURE CODE [CA2387]...22742
FAILURE CODE [CA2555]...22743
FAILURE CODE [CA2556]...22746
FAILURE CODE [CA2637]...22748
FAILURE CODE [CA2639]...22750
FAILURE CODE [CA2771]...22753
FAILURE CODE [CA2777]...22759
FAILURE CODE [CA2976]...22762
FAILURE CODE [CA3133]...22764
FAILURE CODE [CA3134]...22767
FAILURE CODE [CA3135]...22769
FAILURE CODE [CA3142]...22773
FAILURE CODE [CA3143]...22774
FAILURE CODE [CA3144]...22775
FAILURE CODE [CA3146]...22778
FAILURE CODE [CA3147]...22779
FAILURE CODE [CA3148]...22780
FAILURE CODE [CA3151]...22782
FAILURE CODE [CA3165]...22788
FAILURE CODE [CA3229]...22790
FAILURE CODE [CA3231]...22792
FAILURE CODE [CA3232]...22794
FAILURE CODE [CA3235]...22798
FAILURE CODE [CA3239]...22800
FAILURE CODE [CA3241]...22803
FAILURE CODE [CA3242]...22806
FAILURE CODE [CA3251]...22809
FAILURE CODE [CA3253]...22811
FAILURE CODE [CA3254]...22814
FAILURE CODE [CA3255]...22817
FAILURE CODE [CA3256]...22821
FAILURE CODE [CA3311]...22823
FAILURE CODE [CA3312]...22825
FAILURE CODE [CA3313]...22828
FAILURE CODE [CA3314]...22829
FAILURE CODE [CA3315]...22830
FAILURE CODE [CA3316]...22833
FAILURE CODE [CA3317]...22834
FAILURE CODE [CA3318]...22835
FAILURE CODE [CA3319]...22838
FAILURE CODE [CA3321]...22839
FAILURE CODE [CA3322]...22841
FAILURE CODE [CA3419]...22844
FAILURE CODE [CA3421]...22846
FAILURE CODE [CA3497]...22848
FAILURE CODE [CA3498]...22849
FAILURE CODE [CA3543]...22850
FAILURE CODE [CA3545]...22857
FAILURE CODE [CA3547]...22859
FAILURE CODE [CA3558]...22860
FAILURE CODE [CA3559]...22862
FAILURE CODE [CA3562]...22864
FAILURE CODE [CA3563]...22866
FAILURE CODE [CA3567]...22869
FAILURE CODE [CA3568]...22873
FAILURE CODE [CA3571]...22877
FAILURE CODE [CA3572]...22879
FAILURE CODE [CA3574]...22881
FAILURE CODE [CA3575]...22883
FAILURE CODE [CA3577]...22885
FAILURE CODE [CA3578]...22887
FAILURE CODE [CA3582]...22889
FAILURE CODE [CA3583]...22895
FAILURE CODE [CA3596]...22897
FAILURE CODE [CA3649]...22899
FAILURE CODE [CA3681]...22901
FAILURE CODE [CA3682]...22906
FAILURE CODE [CA3713]...22912
FAILURE CODE [CA3717]...22915
FAILURE CODE [CA3718]...22916
FAILURE CODE [CA3725]...22917
FAILURE CODE [CA3741]...22920
FAILURE CODE [CA3748]...22921
FAILURE CODE [CA3751]...22924
FAILURE CODE [CA3755]...22926
FAILURE CODE [CA3866]...22928
FAILURE CODE [CA3867]...22931
FAILURE CODE [CA3868]...22934
FAILURE CODE [CA3899]...22938
FAILURE CODE [CA3911]...22940
FAILURE CODE [CA3912]...22944
FAILURE CODE [CA3932]...22946
FAILURE CODE [CA3933]...22948
FAILURE CODE [CA3934]...22950
FAILURE CODE [CA3935]...22953
FAILURE CODE [CA3936]...22955
FAILURE CODE [CA4151]...22957
FAILURE CODE [CA4152]...22961
FAILURE CODE [CA4155]...22965
FAILURE CODE [CA4156]...22968
FAILURE CODE [CA4157]...22971
FAILURE CODE [CA4158]...22973
FAILURE CODE [CA4159]...22974
FAILURE CODE [CA4161]...22975
FAILURE CODE [CA4162]...22978
FAILURE CODE [CA4163]...22981
FAILURE CODE [CA4164]...22983
FAILURE CODE [CA4165]...22985
FAILURE CODE [CA4166]...22987
FAILURE CODE [CA4168]...22989
FAILURE CODE [CA4169]...22992
FAILURE CODE [CA4171]...22994
FAILURE CODE [CA4249]...22997
FAILURE CODE [CA4251]...22999
FAILURE CODE [CA4259]...23001
FAILURE CODE [CA4261]...23004
FAILURE CODE [CA4277]...23007
FAILURE CODE [CA4281]...23010
FAILURE CODE [CA4459]...23013
FAILURE CODE [CA4461]...23016
FAILURE CODE [CA4658]...23019
FAILURE CODE [CA4731]...23023
FAILURE CODE [CA4732]...23024
FAILURE CODE [CA4739]...23025
FAILURE CODE [CA4768]...23026
FAILURE CODE [CA4769]...23028
FAILURE CODE [CA4842]...23031
FAILURE CODE [CA4952]...23034
FAILURE CODE [CA5115]...23036
FAILURE CODE [CA5179]...23039
FAILURE CODE [CA5181]...23041
FAILURE CODE [CA5383]...23043
FAILURE CODE [D150KA]...23045
FAILURE CODE [D150KB]...23047
FAILURE CODE [D150KY]...23049
FAILURE CODE [D160KA]...23051
FAILURE CODE [D160KB]...23053
FAILURE CODE [D160KY]...23055
FAILURE CODE [D191KA]...23057
FAILURE CODE [D191KB]...23060
FAILURE CODE [D191KY]...23063
FAILURE CODE [D192KA]...23065
FAILURE CODE [D192KB]...23067
FAILURE CODE [D192KY]...23069
FAILURE CODE [D19JKZ]...23070
FAILURE CODE [D1E6KA]...23072
FAILURE CODE [D1E6KB]...23074
FAILURE CODE [D1E6KY]...23076
FAILURE CODE [D5ZHKA]...23078
FAILURE CODE [D5ZHKB]...23080
FAILURE CODE [D5ZHKZ]...23082
FAILURE CODE [D5ZHL6]...23085
FAILURE CODE [D5ZMLD]...23087
FAILURE CODE [D811MC]...23089
FAILURE CODE [D862KA]...23090
FAILURE CODE [D8ALKA]...23091
FAILURE CODE [D8ALKB]...23093
FAILURE CODE [D8AQK4]...23095
FAILURE CODE [D8AQKR]...23096
FAILURE CODE [DAF0KT]...23098
FAILURE CODE [DAF0MB]...23099
FAILURE CODE [DAF0MC]...23100
FAILURE CODE [DAF3KK]...23101
FAILURE CODE [DAF8KB]...23103
FAILURE CODE [DAFDKB]...23105
FAILURE CODE [DAFGMC]...23107
FAILURE CODE [DAFLKA]...23108
FAILURE CODE [DAFLKB]...23110
FAILURE CODE [DAFQKR]...23112
FAILURE CODE [DAQ0KK]...23113
FAILURE CODE [DAQ0KT]...23116
FAILURE CODE [DAQ0MC]...23117
FAILURE CODE [DAQ1KA]...23118
FAILURE CODE [DAQ2KK]...23120
FAILURE CODE [DAQ4KB]...23123
FAILURE CODE [DAQ9KQ]...23125
FAILURE CODE [DAQLKA]...23126
FAILURE CODE [DAQLKB]...23128
FAILURE CODE [DAQQKR]...23130
FAILURE CODE [DAQRKR]...23131
FAILURE CODE [DAQRMA]...23132
FAILURE CODE [DAZ9KQ]...23133
FAILURE CODE [DAZQKR]...23134
FAILURE CODE [DB2QKR]...23135
FAILURE CODE [DB2RKR]...23140
FAILURE CODE [DB90KK]...23146
FAILURE CODE [DB90KT]...23149
FAILURE CODE [DB90MC]...23150
FAILURE CODE [DB91KA]...23151
FAILURE CODE [DB92KK]...23153
FAILURE CODE [DB95KX]...23156
FAILURE CODE [DB96KX]...23159
FAILURE CODE [DB99KQ]...23161
FAILURE CODE [DB9LKA]...23162
FAILURE CODE [DB9LKB]...23164
FAILURE CODE [DB9QKR]...23166
FAILURE CODE [DB9RKR]...23167
FAILURE CODE [DB9RMA]...23168
FAILURE CODE [DBE5KX]...23169
FAILURE CODE [DBE6KX]...23171
FAILURE CODE [DD1ALD]...23173
FAILURE CODE [DDAAL6]...23175
FAILURE CODE [DDB6L4]...23177
FAILURE CODE [DDD1LD]...23180
FAILURE CODE [DDK3KA]...23182
FAILURE CODE [DDK3KB]...23185
FAILURE CODE [DDK6KA]...23188
FAILURE CODE [DDK6KB]...23191
FAILURE CODE [DDKLKA]...23194
FAILURE CODE [DDKLKB]...23197
FAILURE CODE [DDNRKY]...23199
FAILURE CODE [DDNTKY]...23201
FAILURE CODE [DDT0L4]...23203
FAILURE CODE [DDT4LD]...23205
FAILURE CODE [DDT9LD]...23207
FAILURE CODE [DDTALD]...23209
FAILURE CODE [DDW9LD]...23211
FAILURE CODE [DDWLLD]...23213
FAILURE CODE [DF10KA]...23215
FAILURE CODE [DF10KB]...23218
FAILURE CODE [DGF1KA]...23221
FAILURE CODE [DGF1KB]...23223
FAILURE CODE [DGH2KX]...23225
FAILURE CODE [DGR2KB]...23227
FAILURE CODE [DGR2KZ]...23229
FAILURE CODE [DGT1KA]...23231
FAILURE CODE [DGT1KB]...23233
FAILURE CODE [DH21KA]...23235
FAILURE CODE [DH21KB]...23238
FAILURE CODE [DHA4KA]...23240
FAILURE CODE [DHAAMA]...23242
FAILURE CODE [DHACMA]...23244
FAILURE CODE [DHPCKX]...23246
FAILURE CODE [DHPDKX]...23249
FAILURE CODE [DHT1KX]...23252
FAILURE CODE [DHT5KX]...23255
FAILURE CODE [DHT7KX]...23258
FAILURE CODE [DHT8KA]...23261
FAILURE CODE [DHT8KB]...23264
FAILURE CODE [DHT8ZG]...23266
FAILURE CODE [DHUDKA]...23267
FAILURE CODE [DHUDKB]...23270
FAILURE CODE [DJF1KA]...23272
FAILURE CODE [DK55KA]...23274
FAILURE CODE [DK55KY]...23277
FAILURE CODE [DK55L5]...23279
FAILURE CODE [DK59KA]...23280
FAILURE CODE [DK59KY]...23284
FAILURE CODE [DK59L8]...23288
FAILURE CODE [DK5AKA]...23293
FAILURE CODE [DK5AKY]...23297
FAILURE CODE [DK5BKA]...23301
FAILURE CODE [DK5BKY]...23305
FAILURE CODE [DK5BL8]...23309
FAILURE CODE [DK5CKA]...23314
FAILURE CODE [DK5CKY]...23318
FAILURE CODE [DK5DKA]...23322
FAILURE CODE [DK5DKY]...23325
FAILURE CODE [DK5DL8]...23328
FAILURE CODE [DK5EKA]...23332
FAILURE CODE [DK5EKY]...23335
FAILURE CODE [DK5KKA]...23338
FAILURE CODE [DK5KKY]...23341
FAILURE CODE [DK5KL8]...23344
FAILURE CODE [DK5LKA]...23348
FAILURE CODE [DK5LKY]...23351
FAILURE CODE [DKA0KA]...23354
FAILURE CODE [DKA0KY]...23357
FAILURE CODE [DKA0L0]...23360
FAILURE CODE [DKA1KA]...23363
FAILURE CODE [DKA1KY]...23366
FAILURE CODE [DLF1KA]...23369
FAILURE CODE [DLF1LC]...23371
FAILURE CODE [DLM3KA]...23373
FAILURE CODE [DLM3LC]...23375
FAILURE CODE [DLT3KA]...23377
FAILURE CODE [DLT3LC]...23379
FAILURE CODE [DPQ1KR]...23381
FAILURE CODE [DPQ2KR]...23384
FAILURE CODE [DPQ3KR]...23387
FAILURE CODE [DSJ0KR]...23390
FAILURE CODE [DT20KB]...23393
FAILURE CODE [DT22KB]...23395
FAILURE CODE [DT23KB]...23397
FAILURE CODE [DV00KB]...23399
FAILURE CODE [DW4PKA]...23401
FAILURE CODE [DW4PKB]...23403
FAILURE CODE [DW4PKY]...23405
FAILURE CODE [DW4QKA]...23407
FAILURE CODE [DW4QKB]...23409
FAILURE CODE [DW4QKY]...23411
FAILURE CODE [DW4RKA]...23413
FAILURE CODE [DW4RKB]...23415
FAILURE CODE [DW4RKY]...23417
FAILURE CODE [DW4SKA]...23419
FAILURE CODE [DW4SKB]...23421
FAILURE CODE [DW4SKY]...23423
FAILURE CODE [DW7BKA]...23425
FAILURE CODE [DW7BKB]...23427
FAILURE CODE [DW7BKY]...23429
FAILURE CODE [DWM1KA]...23431
FAILURE CODE [DWM1KB]...23433
FAILURE CODE [DWM1KY]...23435
FAILURE CODE [DWN6KA]...23437
FAILURE CODE [DWN6KB]...23439
FAILURE CODE [DWN6KY]...23441
FAILURE CODE [DWN8KA]...23443
FAILURE CODE [DWN8KB]...23445
FAILURE CODE [DWN8KY]...23447
FAILURE CODE [DX16KA]...23449
FAILURE CODE [DX16KB]...23451
FAILURE CODE [DX16KY]...23453
FAILURE CODE [DXA1KA]...23455
FAILURE CODE [DXA1KB]...23457
FAILURE CODE [DXA1KY]...23459
FAILURE CODE [DXANKA]...23461
FAILURE CODE [DXANKB]...23463
FAILURE CODE [DXANKY]...23465
FAILURE CODE [DXH1KA]...23467
FAILURE CODE [DXH1KB]...23469
FAILURE CODE [DXH1KY]...23471
FAILURE CODE [DXH4KA]...23473
FAILURE CODE [DXH4KB]...23475
FAILURE CODE [DXH4KY]...23477
FAILURE CODE [DXH5KA]...23479
FAILURE CODE [DXH5KB]...23481
FAILURE CODE [DXH5KY]...23483
FAILURE CODE [DXH6KA]...23485
FAILURE CODE [DXH6KB]...23487
FAILURE CODE [DXH6KY]...23489
FAILURE CODE [DXH7KA]...23491
FAILURE CODE [DXH7KB]...23493
FAILURE CODE [DXH7KY]...23495
FAILURE CODE [DXH8KA]...23497
FAILURE CODE [DXH8KB]...23499
FAILURE CODE [DXH8KY]...23501
FAILURE CODE [DXHHKA]...23503
FAILURE CODE [DXHHKB]...23505
FAILURE CODE [DXHHKY]...23507
FAILURE CODE [DXHJKA]...23509
FAILURE CODE [DXHJKB]...23511
FAILURE CODE [DXHJKY]...23513
FAILURE CODE [DXHKKA]...23515
FAILURE CODE [DXHKKB]...23517
FAILURE CODE [DXHKKY]...23519
FAILURE CODE [DXJEKA]...23521
FAILURE CODE [DXJEKB]...23523
FAILURE CODE [DXJEKY]...23525
FAILURE CODE [DXJFKA]...23527
FAILURE CODE [DXJFKB]...23529
FAILURE CODE [DXJFKY]...23531
FAILURE CODE [DY30MA]...23533
FAILURE CODE [DY30MC]...23537
FAILURE CODE [DY30ME]...23542
FAILURE CODE [LA00L3]...23544
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E-MODE)...23545
E-1 ENGINE DOES NOT START (ENGINE DOES NOT CRANK)...23545
E-2 MANUAL PREHEATING SYSTEM DOES NOT WORK...23552
E-3 AUTOMATIC PREHEATING SYSTEM DOES NOT WORK...23555
E-4 WHILE PREHEATING IS WORKING, PREHEATING MONITOR DOES NOT LIGHT UP...23558
E-5 ALL OF LCD UNIT, LED UNIT, AND METER UNIT ON MACHINE MONITOR DISPLAY NOTHING...23560
E-6 LCD UNIT ON MACHINE MONITOR DISPLAYS NOTHING...23563
E-7 BACKLIGHT OF LCD UNIT ON MACHINE MONITOR IS ABNORMAL, (BACKLIGHT GOES OUT OR FLICKERS)...23566
E-8 LCD ON MACHINE MONITOR DOES NOT DISPLAY PROPERLY...23569
E-9 METER UNIT DISPLAY ON MACHINE MONITOR IS ABNORMAL...23572
E-10 NIGHT LIGHTING LAMP OF METER UNIT ON MACHINE MONITOR IS ABNORMAL...23575
E-11 LED UNIT LAMP ON MACHINE MONITOR IS ABNORMAL...23579
E-12 NIGHT LIGHTING LAMP OF SWITCH PANEL ON MACHINE MONITOR IS ABNORMAL OR SWITCH DOES NOT OPERATE PROPERLY...23581
E-13 2 SWITCHES OPERATION OF SWITCH PANEL ON MACHINE MONITOR DOES NOT FUNCTION...23584
E-14 SWITCH PANEL BUZZER OF MACHINE MONITOR IS ABNORMAL...23587
E-15 SOME ITEMS OF GAUGES AND CAUTION LAMPS ON MACHINE MONITOR ARE NOT DISPLAYED PROPERLY...23590
E-16 REARVIEW MONITOR DOES NOT LIGHT UP OR BACKLIGHT FLICKERS...23591
E-17 REARVIEW MONITOR IMAGES ARE NOT DISPLAYED CLEARLY...23594
E-18 REARVIEW MONITOR BRIGHTNESS CANNOT BE ADJUSTED...23597
E-19 NIGHT LIGHTING LAMP OF REARVIEW MONITOR IS ABNORMAL...23601
E-20 AIR CLEANER CLOGGING INDICATOR LAMP DOES NOT LIGHT UP...23603
E-21 RADIATOR COOLANT LEVEL CAUTION LAMP DOES NOT LIGHT UP...23605
E-22 PARKING BRAKE INDICATOR LAMP DOES NOT LIGHT WHEN THE PARKING BRAKE IS SET TO ON (PARKING) POSITION...23607
E-23 WHEN FRONT BRAKE ACCUMULATOR OIL PRESSURE DROPS, THE BRAKE OIL PRESSURE CAUTION LAMP DOES NOT LIGHT UP...23611
E-24 WHEN REAR BRAKE ACCUMULATOR OIL PRESSURE DROPS, THE BRAKE OIL PRESSURE CAUTION LAMP DOES NOT LIGHT UP...23612
E-25 FUEL LEVEL GAUGE DOES NOT INDICATE CORRECT LEVEL...23613
E-26 TORQUE CONVERTER OIL TEMPERATURE GAUGE DOES NOT INCREASE, OR TORQUE CONVERTER OIL TEMPERATURE CAUTION LAMP DOES NOT LIGHT UP...23615
E-27 INDICATION OF HYDRAULIC OIL TEMPERATURE GAUGE DOES NOT INCREASE, OR HYDRAULIC OIL TEMPERATURE CAUTION LAMP DOES NOT LIGHT...23616
E-28 SEAT BELT CAUTION LAMP INDICATION IS ABNORMAL...23618
E-29 ALARM BUZZER DOES NOT SOUND...23619
E-30 ALARM BUZZER DOES NOT STOP SOUNDING...23621
E-31 KICKDOWN DOES NOT WORK WHEN KICKDOWN SWITCH IS TURNED ON...23622
E-32 HOLD SWITCH DOES NOT WORK WHEN IT IS PRESSED...23624
E-33 BRAKE DOES NOT WORK WHEN PARKING BRAKE IS APPLIED OR BRAKE DRAGS WHILE TRAVELING WHEN PARKING BRAKE IS RELEASED...23626
E-34 TRANSMISSION CUT-OFF MODE IS NOT SELECTED OR NOT RELEASED...23630
E-35 TRANSMISSION CUT-OFF SETTING CANNOT BE RELEASED...23632
E-36 DIRECTIONAL SELECTOR (FNR) SWITCH MODE IS NOT SELECTED OR NOT RELEASED...23634
E-37 ENGINE MODE SELECTOR FUNCTION DOES NOT OPERATE NORMALLY WHEN ENGINE POWER MODE SELECTOR SWITCH IS OPERATED...23636
E-38 FLOW OF LOADER PUMP DOES NOT INCREASE FROM THE MINIMUM RATE...23638
E-39 ECSS FUNCTION CANNOT BE SELECTED OR CANNOT BE RELEASED...23639
E-40 HORN DOES NOT SOUND...23641
E-41 HORN DOES NOT STOP SOUNDING...23644
E-42 NONE OF HEADLAMP, CLEARANCE LAMP, AND TAIL LAMP LIGHTS...23646
E-43 CLEARANCE LAMP AND TAIL LAMP DO NOT LIGHT UP OR GO OUT...23648
E-44 BOTH HIGH AND LOW BEAMS OF HEADLAMP DO NOT LIGHT UP OR GO OUT...23652
E-45 LOW BEAM OF HEADLAMP DOES NOT LIGHT UP OR GO OUT...23656
E-46 HIGH BEAM OF HEADLAMP DOES NOT LIGHT UP OR GO OUT...23658
E-47 FRONT WORKING LAMP DOES NOT LIGHT UP OR GO OUT...23660
E-48 FRONT WORKING LAMP DOES NOT LIGHT UP OR GO OUT (FOR EUROPEAN UNION)...23665
E-49 REAR WORKING LAMP DOES NOT LIGHT UP OR GO OUT...23670
E-50 REAR WORKING LAMP DOES NOT LIGHT UP OR GO OUT (FOR EUROPEAN UNION)...23674
E-51 ALL OF TURN SIGNAL LAMPS AND HAZARD LAMPS DO NOT LIGHT UP OR GO OUT...23679
E-52 TURN SIGNAL LAMPS DO NOT LIGHT UP OR GO OUT...23682
E-53 HAZARD LAMP DOES NOT LIGHT UP OR GO OUT...23685
E-54 BRAKE LAMP DOES NOT LIGHT OR STAYS LIGHTED...23689
E-55 BACKUP LAMP DOES NOT LIGHT UP OR DOES NOT GO OUT...23693
E-56 BACKUP BUZZER DOES NOT SOUND OR CONTINUES TO SOUND...23696
E-57 FRONT WIPER DOES NOT OPERATE...23698
E-58 REAR WIPER DOES NOT OPERATE...23702
E-59 WINDOW WASHER DOES NOT OPERATE...23705
E-60 KOMTRAX SYSTEM DOES NOT OPERATE NORMALLY...23708
E-61 [FCS] IS DISPLAYED ON THE SCREEN OF AUTO-GREASING PUMP...23709
E-62 [FLL] IS DISPLAYED ON THE SCREEN OF AUTO-GREASING PUMP...23711
E-63 AUTO-GREASING SYSTEM DOES NOT OPERATE OR STOP...23712
TROUBLESHOOTING FOR HYDRAULIC AND MECHANICAL SYSTEMS (H MODE)...23714
INFORMATION MENTIONED IN TROUBLESHOOTING TABLE (H MODE)...23714
FAILURE MODE AND CAUSE TABLE...23715
H-1 MACHINE DOES NOT START...23728
H-2 LOCKUP IS NOT RELEASED...23732
H-3 TORQUE CONVERTER LOCKUP CLUTCH DOES NOT ENGAGE...23733
H-4 TRAVEL SPEED IS SLOW, BUCKET THRUST FORCE IS WEAK, GRADABILITY IS LOW, OR GEAR SPEED DOES NOT SHIFT...23734
H-5 LARGE SHOCK IS MADE WHEN MACHINE MOVES OFF OR GEAR IS SHIFTED...23737
H-6 LARGE TIME LAG IS OBSERVED WHEN MACHINE STARTS AND GEAR IS SHIFTED...23740
H-7 OIL TEMPERATURE OF TORQUE CONVERTER IS HIGH...23743
H-8 MACHINE DOES NOT TURN (FOR STEERING WHEEL SPEC)...23746
H-9 TURNING RESPONSE IS POOR (FOR STEERING WHEEL SPEC)...23749
H-10 STEERING WHEEL IS HEAVY TO OPERATE...23752
H-11 MACHINE SWAYS OR LARGE SHOCKS ARE MADE WHILE MACHINE TURNS (FOR STEERING WHEEL SPEC)...23753
H-12 TURNING RADIUS DIFFERS BETWEEN RIGHT AND LEFT TURNS...23755
H-13 WHEEL BRAKES DO NOT WORK OR ARE WEAK...23756
H-14 WHEEL BRAKES ARE NOT RELEASED OR DRAG...23758
H-15 PARKING BRAKE DOES NOT WORK OR IT IS WEAK...23759
H-16 PARKING BRAKE IS NOT RELEASED OR DRAGS...23760
H-17 BOOM DOES NOT RISE...23761
H-18 BOOM MOVES SLOW OR BOOM LACKS LIFTING FORCE...23764
H-19 RISING BOOM SLOWS DOWN AT CERTAIN HEIGHT...23767
H-20 LIFT CYLINDERS DO NOT SERVE TO HOLD BUCKET ON GROUND...23768
H-21 HYDRAULIC DRIFT OF BOOM IS LARGE...23770
H-22 BOOM MOVES UP AND DOWN DURING OPERATION...23771
H-23 BUCKET DOES NOT TILT BACK...23772
H-24 BUCKET MOVES SLOW OR LACKS TILT-BACK FORCE...23775
H-25 BUCKET DECELERATES DURING TILT-BACK OPERATION...23778
H-26 BUCKET CYLINDER DOES NOT HOLD BUCKET ON GROUND...23779
H-27 HYDRAULIC DRIFT OF BUCKET IS LARGE...23781
H-28 BUCKET TILTS BACK AND FORTH DURING CARRYING LOAD (WORK EQUIPMENT VALVE IN HOLD)...23782
H-29 BOOM AND BUCKET CONTROL LEVERS DO NOT MOVE SMOOTHLY AND ARE HEAVY TO MOVE (2-LEVER TYPE OR 3-LEVER TYPE)...23783
H-30 BOOM AND BUCKET CONTROL LEVERS DO NOT MOVE SMOOTHLY AND ARE HEAVY TO MOVE (MULTI-FUNCTION MONO-LEVER TYPE)...23784
H-31 WHEN OPERATING WORK EQUIPMENT ENGINE SPEED DROPS LARGELY OR ENGINE STOPS...23785
H-32 LARGE SHOCKS ARE MADE WHEN WORK EQUIPMENT STARTS TO MOVE AND STOPS...23786
H-33 WHEN CERTAIN WORK EQUIPMENT STALLS HYDRAULICALLY, OTHER WORK EQUIPMENT MOVES...23788
H-34 E.C.S.S. (TRAVEL DAMPER) DOES NOT WORK AND MACHINE PITCHES AND BOUNCES...23789
H-35 BUCKET DOES NOT STOP AT THE POSITION WHICH IS SET WITH REMOTE BUCKET POSITIONER...23790
H-36 FAN SPEED IS ABNORMAL (TOO HIGH OR LOW, OR STATIONARY)...23791
H-37 UNUSUAL NOISE IS HEARD FROM AROUND FAN...23793
TROUBLESHOOTING OF ENGINE (S-MODE)...23794
INFORMATION MENTIONED IN TROUBLESHOOTING TABLE (S MODE)...23794
S-1 ENGINE DOES NOT CRANK WHEN STARTING SWITCH IS TURNED TO START POSITION...23795
S-2 ENGINE CRANKS BUT NO EXHAUST GAS COMES OUT...23796
S-3 FUEL IS BEING INJECTED BUT ENGINE DOES NOT START (MISFIRING: ENGINE CRANKS BUT DOES NOT START)...23797
S-4 ENGINE STARTABILITY IS POOR...23799
S-5 ENGINE DOES NOT PICK UP SMOOTHLY...23801
S-6 ENGINE STOPS DURING OPERATION...23803
S-7 ENGINE RUNS ROUGH OR IS UNSTABLE...23805
S-8 ENGINE LACKS POWER...23806
S-9 KDPF GETS CLOGGED IN A SHORT TIME...23808
S-10 ENGINE OIL CONSUMPTION IS EXCESSIVE...23810
S-11 OIL BECOMES CONTAMINATED QUICKLY...23811
S-12 FUEL CONSUMPTION IS EXCESSIVE...23812
S-13 OIL IS IN COOLANT (OR COOLANT SPURTS BACK OR COOLANT LEVEL GOES DOWN)...23813
S-14 OIL PRESSURE DROPS...23814
S-15 FUEL MIXES INTO ENGINE OIL...23816
S-16 WATER MIXES INTO ENGINE OIL (MILKY)...23817
S-17 COOLANT TEMPERATURE RISES TOO HIGH (OVERHEATING)...23818
S-18 UNUSUAL NOISE IS HEARD...23819
S-19 VIBRATION IS EXCESSIVE...23820
S-20 AIR CANNOT BE BLED FROM FUEL CIRCUIT...23821
S-21 ACTIVE REGENERATION IS EXECUTED FREQUENTLY...23822
S-22 ACTIVE REGENERATION TAKES TIME...23824
S-23 WHITE SMOKE IS EXHAUSTED DURING ACTIVE REGENERATION...23825
S-24 AdBlue/DEF CONSUMPTION IS EXCESSIVE...23826
S-25 FOREIGN MATERIALS ENTER AdBlue/DEF (AdBlue/DEF INCREASES)...23828
TROUBLESHOOTING FOR AUTO-GREASING SYSTEM...23829
OUTLINE OF FAILURE DISPLAY...23829
TROUBLESHOOTING FOR FCS...23830
TROUBLESHOOTING FOR AUTO-GREASING PUMP...23831
REPLACEMENT OF PUMP ELEMENT...23834
TROUBLESHOOTING FOR GREASE SUPPLY SYSTEM...23835
REPLACEMENT OF AUTO-GREASING CONTROLLER...23837
PROCEDURE FOR ASSEMBLING WHEN DISASSEMBLING FOR TROUBLESHOOTING...23838
50 DISASSEMBLY AND ASSEMBLY...23839
CONTENTS...23840
ABBREVIATION LIST...23845
RELATED INFORMATION ON DISASSEMBLY AND ASSEMBLY...23851
HOW TO READ THIS MANUAL...23851
COATING MATERIALS LIST...23853
SPECIAL TOOLS LIST...23858
SKETCHES OF SPECIAL TOOLS...23877
ENGINE AND COOLING SYSTEM...23885
REMOVE AND INSTALL SUPPLY PUMP ASSEMBLY...23885
METHOD FOR REMOVING SUPPLY PUMP ASSEMBLY...23885
METHOD FOR INSTALLING SUPPLY PUMP ASSEMBLY...23888
REMOVE AND INSTALL INJECTOR ASSEMBLY...23891
METHOD FOR REMOVING INJECTOR ASSEMBLY...23891
METHOD FOR INSTALLING INJECTOR ASSEMBLY...23897
REMOVE AND INSTALL CYLINDER HEAD ASSEMBLY...23906
METHOD FOR REMOVING CYLINDER HEAD ASSEMBLY...23907
METHOD FOR INSTALLING CYLINDER HEAD ASSEMBLY...23918
REMOVE AND INSTALL EGR VALVE ASSEMBLY...23934
METHOD FOR REMOVING EGR VALVE ASSEMBLY...23934
METHOD FOR INSTALLING EGR VALVE ASSEMBLY...23935
REMOVE AND INSTALL EGR COOLER ASSEMBLY...23937
METHOD FOR REMOVING EGR COOLER ASSEMBLY...23937
METHOD FOR INSTALLING EGR COOLER ASSEMBLY...23939
REMOVE AND INSTALL STARTING MOTOR ASSEMBLY...23943
METHOD FOR REMOVING STARTING MOTOR ASSEMBLY...23943
METHOD FOR INSTALLING STARTING MOTOR ASSEMBLY...23944
REMOVE AND INSTALL AIR CONDITIONER COMPRESSOR BELT...23946
METHOD FOR REMOVING AIR CONDITIONER COMPRESSOR BELT...23946
METHOD FOR INSTALLING AIR CONDITIONER COMPRESSOR BELT...23947
REMOVE AND INSTALL ALTERNATOR BELT...23949
METHOD FOR REMOVING ALTERNATOR BELT...23949
METHOD FOR INSTALLING ALTERNATOR BELT...23950
REMOVE AND INSTALL AUTOMATIC TENSIONER...23952
METHOD FOR REMOVING AUTOMATIC TENSIONER...23952
METHOD FOR INSTALLING AUTOMATIC TENSIONER...23952
REMOVE AND INSTALL RADIATOR CORE...23953
METHOD FOR REMOVING RADIATOR CORE...23953
METHOD FOR INSTALLING RADIATOR CORE...23960
REMOVE AND INSTALL COOLING FAN AND FAN MOTOR ASSEMBLY...23967
METHOD FOR REMOVING COOLING FAN AND COOLING FAN MOTOR ASSEMBLY...23967
METHOD FOR INSTALLING COOLING FAN AND COOLING FAN MOTOR ASSEMBLY...23970
REMOVE AND INSTALL HYDRAULIC OIL COOLER ASSEMBLY...23973
METHOD FOR REMOVING HYDRAULIC OIL COOLER ASSEMBLY...23973
METHOD FOR INSTALLING HYDRAULIC OIL COOLER ASSEMBLY...23975
REMOVE AND INSTALL AFTERCOOLER ASSEMBLY...23977
METHOD FOR REMOVING AFTERCOOLER ASSEMBLY...23977
METHOD FOR INSTALLING AFTERCOOLER ASSEMBLY...23981
REMOVE AND INSTALL POWER TRAIN OIL COOLER ASSEMBLY...23986
METHOD FOR REMOVING POWER TRAIN OIL COOLER ASSEMBLY...23986
METHOD FOR INSTALLING POWER TRAIN OIL COOLER ASSEMBLY...23989
REMOVE AND INSTALL ENGINE, TORQUE CONVERTER AND TRANSMISSION ASSEMBLY...23993
METHOD FOR REMOVING ENGINE, TORQUE CONVERTER AND TRANSMISSION ASSEMBLY...23994
METHOD FOR INSTALLING ENGINE, TORQUE CONVERTER AND TRANSMISSION ASSEMBLY...24008
DISCONNECT AND CONNECT ENGINE, TORQUE CONVERTER AND TRANSMISSION ASSEMBLY...24023
METHOD FOR DISCONNECTING ENGINE, TORQUE CONVERTER AND TRANSMISSION ASSEMBLY...24023
METHOD FOR CONNECTING ENGINE, TORQUE CONVERTER AND TRANSMISSION ASSEMBLY...24024
REMOVE AND INSTALL ENGINE FRONT OIL SEAL...24025
METHOD FOR REMOVING ENGINE FRONT OIL SEAL...24025
METHOD FOR INSTALLING ENGINE FRONT OIL SEAL...24026
REMOVE AND INSTALL ENGINE REAR OIL SEAL...24028
METHOD FOR REMOVING ENGINE REAR OIL SEAL...24028
METHOD FOR INSTALLING ENGINE REAR OIL SEAL...24029
REMOVE AND INSTALL ENGINE HOOD ASSEMBLY...24033
METHOD FOR REMOVING ENGINE HOOD ASSEMBLY...24033
METHOD FOR INSTALLING ENGINE HOOD ASSEMBLY...24037
REMOVE AND INSTALL FUEL TANK ASSEMBLY...24041
METHOD FOR REMOVING FUEL TANK ASSEMBLY...24041
METHOD FOR INSTALLING FUEL TANK ASSEMBLY...24043
REMOVE AND INSTALL AdBlue/DEF TANK ASSEMBLY...24046
METHOD FOR REMOVING AdBlue/DEF TANK ASSEMBLY...24046
METHOD FOR INSTALLING AdBlue/DEF TANK ASSEMBLY...24051
REMOVE AND INSTALL AdBlue/DEF TANK SENSOR FLANGE ASSEMBLY...24055
METHOD FOR REMOVING AdBlue/DEF TANK SENSOR FLANGE ASSEMBLY...24055
METHOD FOR INSTALLING AdBlue/DEF TANK SENSOR FLANGE ASSEMBLY...24055
REMOVE AND INSTALL AdBlue/DEF TANK SENSOR...24057
METHOD FOR REMOVING AdBlue/DEF TANK SENSOR...24057
METHOD FOR INSTALLING AdBlue/DEF TANK SENSOR...24057
REMOVE AND INSTALL AdBlue/DEF TANK STRAINER...24059
METHOD FOR REMOVING AdBlue/DEF TANK STRAINER...24059
METHOD FOR INSTALLING AdBlue/DEF TANK STRAINER...24059
REMOVE AND INSTALL KDPF ASSEMBLY...24060
METHOD FOR REMOVING KDPF ASSEMBLY...24061
METHOD FOR INSTALLING KDPF ASSEMBLY...24070
DISASSEMBLE AND ASSEMBLE OF KDPF ASSEMBLY...24083
METHOD FOR DISASSEMBLING KDPF ASSEMBLY...24083
METHOD FOR ASSEMBLING KDPF ASSEMBLY...24087
REMOVE AND INSTALL SCR ASSEMBLY...24092
METHOD FOR REMOVING SCR ASSEMBLY...24093
METHOD FOR INSTALLING SCR ASSEMBLY...24101
REMOVE AND INSTALL KDPF, SCR ASSEMBLY...24113
METHOD FOR REMOVING KDPF, SCR ASSEMBLY...24113
METHOD FOR INSTALLING KDPF, SCR ASSEMBLY...24121
REMOVE AND INSTALL KCCV ASSEMBLY...24131
METHOD FOR REMOVING KCCV ASSEMBLY...24131
METHOD FOR INSTALLING KCCV ASSEMBLY...24132
REMOVE AND INSTALL VGT ASSEMBLY...24134
METHOD FOR REMOVING KVGT ASSEMBLY...24134
METHOD FOR INSTALLING KVGT ASSEMBLY...24137
REMOVE AND INSTALL AdBlue/DEF MIXING TUBE...24141
METHOD FOR REMOVING AdBlue/DEF MIXING TUBE...24142
METHOD FOR INSTALLING AdBlue/DEF MIXING TUBE...24149
REMOVE AND INSTALL AdBlue/DEF INJECTOR...24157
METHOD FOR REMOVING AdBlue/DEF INJECTOR...24157
METHOD FOR INSTALLING AdBlue/DEF INJECTOR...24160
REMOVE AND INSTALL AdBlue/DEF PUMP...24163
METHOD FOR REMOVING AdBlue/DEF PUMP...24163
METHOD FOR INSTALLING AdBlue/DEF PUMP...24166
REMOVE AND INSTALL AdBlue/DEF HOSE...24169
METHOD FOR REMOVING AdBlue/DEF HOSE...24170
METHOD FOR INSTALLING AdBlue/DEF HOSE...24175
REMOVE AND INSTALL AIR CLEANER ASSEMBLY...24183
METHOD FOR REMOVING AIR CLEANER ASSEMBLY...24183
METHOD FOR INSTALLING AIR CLEANER ASSEMBLY...24185
REMOVE AND INSTALL AIR CONDITIONER COMPRESSOR ASSEMBLY...24187
METHOD FOR REMOVING AIR CONDITIONER COMPRESSOR ASSEMBLY...24187
METHOD FOR INSTALLING AIR CONDITIONER COMPRESSOR ASSEMBLY...24189
REMOVE AND INSTALL AIR CONDITIONER CONDENSER ASSEMBLY...24192
METHOD FOR REMOVING AIR CONDITIONER CONDENSER ASSEMBLY...24192
METHOD FOR INSTALLING AIR CONDITIONER CONDENSER ASSEMBLY...24193
POWER TRAIN...24195
DISASSEMBLE AND ASSEMBLE TORQUE CONVERTER ASSEMBLY...24195
METHOD FOR DISASSEMBLING TORQUE CONVERTER ASSEMBLY...24196
METHOD FOR ASSEMBLING TORQUE CONVERTER ASSEMBLY...24199
DISASSEMBLE AND ASSEMBLE TRANSMISSION ASSEMBLY...24205
METHOD FOR DISASSEMBLING TRANSMISSION ASSEMBLY...24206
METHOD FOR ASSEMBLING TRANSMISSION ASSEMBLY...24214
DISASSEMBLE AND ASSEMBLE TRANSMISSION GEAR KIT WITH CLUTCH ASSEMBLY...24226
METHOD FOR DISASSEMBLING TRANSMISSION GEAR KIT WITH CLUTCH ASSEMBLY...24227
METHOD FOR ASSEMBLING TRANSMISSION GEAR KIT WITH CLUTCH ASSEMBLY...24236
DISASSEMBLE AND ASSEMBLE PARKING BRAKE ASSEMBLY...24248
METHOD FOR DISASSEMBLING PARKING BRAKE ASSEMBLY...24249
METHOD FOR ASSEMBLING PARKING BRAKE ASSEMBLY...24251
REMOVE AND INSTALL FRONT AXLE ASSEMBLY...24259
METHOD FOR REMOVING FRONT AXLE ASSEMBLY...24259
METHOD FOR INSTALLING FRONT AXLE ASSEMBLY...24260
REMOVE AND INSTALL REAR AXLE ASSEMBLY...24263
METHOD FOR REMOVING REAR AXLE ASSEMBLY...24263
METHOD FOR INSTALLING REAR AXLE ASSEMBLY...24266
DISASSEMBLE AND ASSEMBLE AXLE HOUSING ASSEMBLY...24271
METHOD FOR DISASSEMBLING AXLE HOUSING ASSEMBLY...24272
METHOD FOR ASSEMBLING AXLE HOUSING ASSEMBLY...24277
DISASSEMBLE AND ASSEMBLE DIFFERENTIAL ASSEMBLY...24285
METHOD FOR DISASSEMBLING DIFFERENTIAL ASSEMBLY...24286
METHOD FOR ASSEMBLING DIFFERENTIAL ASSEMBLY...24296
STEERING SYSTEM...24314
REMOVE AND INSTALL STEERING VALVE ASSEMBLY...24314
METHOD FOR REMOVING STEERING VALVE ASSEMBLY...24314
METHOD FOR INSTALLING STEERING VALVE ASSEMBLY...24316
BRAKE SYSTEM...24319
REMOVE AND INSTALL PARKING BRAKE DISC AND PLATE...24319
METHOD FOR REMOVING PARKING BRAKE DISC AND PLATE...24319
METHOD FOR INSTALLING PARKING BRAKE DISC AND PLATE...24322
UNDERCARRIAGE AND FRAME...24325
REMOVE AND INSTALL CENTER HINGE PIN...24325
METHOD FOR REMOVING CENTER HINGE PIN...24325
METHOD FOR INSTALLING CENTER HINGE PIN...24330
REMOVE AND INSTALL COUNTERWEIGHT ASSEMBLY...24337
METHOD FOR REMOVING COUNTERWEIGHT ASSEMBLY...24337
METHOD FOR INSTALLING COUNTERWEIGHT ASSEMBLY...24342
REMOVE AND INSTALL FULL-LENGTH FENDER ASSEMBLY...24347
METHOD FOR REMOVING FULL-LENGTH FENDER ASSEMBLY...24347
METHOD FOR INSTALLING FULL-LENGTH FENDER ASSEMBLY...24348
HYDRAULIC SYSTEM...24349
REMOVE AND INSTALL HYDRAULIC TANK ASSEMBLY...24349
METHOD FOR REMOVING HYDRAULIC TANK ASSEMBLY...24349
METHOD FOR INSTALLING HYDRAULIC TANK ASSEMBLY...24352
REMOVE AND INSTALL WORK EQUIPMENT PUMP AND POWER TRAIN PUMP ASSEMBLY...24356
METHOD FOR REMOVING WORK EQUIPMENT PUMP AND POWER TRAIN PUMP ASSEMBLY...24356
METHOD FOR INSTALLING WORK EQUIPMENT PUMP AND POWER TRAIN PUMP ASSEMBLY...24358
REMOVE AND INSTALL STEERING PUMP AND COOLING FAN PUMP ASSEMBLY...24360
METHOD FOR REMOVING STEERING PUMP AND COOLING FAN PUMP ASSEMBLY...24360
METHOD FOR INSTALLING STEERING PUMP AND COOLING FAN PUMP ASSEMBLY...24362
REMOVE AND INSTALL CONTROL VALVE ASSEMBLY...24364
METHOD FOR REMOVING CONTROL VALVE ASSEMBLY...24364
METHOD FOR INSTALLING CONTROL VALVE ASSEMBLY...24368
WORK EQUIPMENT...24372
REMOVE AND INSTALL WORK EQUIPMENT ASSEMBLY...24372
METHOD FOR REMOVING WORK EQUIPMENT ASSEMBLY...24372
METHOD FOR INSTALLING WORK EQUIPMENT ASSEMBLY...24376
DISASSEMBLE AND ASSEMBLE HYDRAULIC CYLINDER ASSEMBLY...24382
METHOD FOR DISASSEMBLING HYDRAULIC CYLINDER ASSEMBLY...24383
METHOD FOR ASSEMBLING HYDRAULIC CYLINDER ASSEMBLY...24386
CAB AND ITS ATTACHMENTS...24392
REMOVE AND INSTALL OPERATOR'S CAB ASSEMBLY...24392
METHOD FOR REMOVING OPERATOR'S CAB ASSEMBLY...24392
METHOD FOR INSTALLING OPERATOR'S CAB ASSEMBLY...24396
REMOVE AND INSTALL OPERATOR'S CAB GLASS (ADHERED GLASS)...24402
METHOD FOR REMOVING OPERATOR'S CAB GLASS (ADHERED GLASS)...24402
METHOD FOR INSTALLING OPERATOR'S CAB GLASS (ADHERED GLASS)...24403
REMOVE AND INSTALL AIR CONDITIONER UNIT ASSEMBLY...24412
METHOD FOR REMOVING AIR CONDITIONER UNIT ASSEMBLY...24412
METHOD FOR INSTALLING AIR CONDITIONER UNIT ASSEMBLY...24418
REMOVE AND INSTALL OPERATOR'S SEAT ASSEMBLY...24424
METHOD FOR REMOVING OPERATOR'S SEAT ASSEMBLY...24424
METHOD FOR INSTALLING OPERATOR'S SEAT ASSEMBLY...24426
REMOVE AND INSTALL SEAT BELT...24428
METHOD FOR REMOVING SEAT BELT...24428
METHOD FOR INSTALLING SEAT BELT...24428
ELECTRICAL SYSTEM...24430
REMOVE AND INSTALL ENGINE CONTROLLER ASSEMBLY...24430
METHOD FOR REMOVING ENGINE CONTROLLER ASSEMBLY...24430
METHOD FOR INSTALLING ENGINE CONTROLLER ASSEMBLY...24432
REMOVE AND INSTALL WORK EQUIPMENT CONTROLLER ASSEMBLY...24435
METHOD FOR REMOVING WORK EQUIPMENT CONTROLLER ASSEMBLY...24435
METHOD FOR INSTALLING WORK EQUIPMENT CONTROLLER ASSEMBLY...24436
REMOVE AND INSTALL TRANSMISSION CONTROLLER ASSEMBLY...24439
METHOD FOR REMOVING TRANSMISSION CONTROLLER ASSEMBLY...24439
METHOD FOR INSTALLING TRANSMISSION CONTROLLER ASSEMBLY...24439
REMOVE AND INSTALL MONITOR CONTROLLER ASSEMBLY...24441
METHOD FOR REMOVING MONITOR CONTROLLER ASSEMBLY...24441
METHOD FOR INSTALLING MONITOR CONTROLLER ASSEMBLY...24443
REMOVE AND INSTALL MACHINE MONITOR ASSEMBLY...24445
METHOD FOR REMOVING MACHINE MONITOR ASSEMBLY...24445
METHOD FOR INSTALLING MACHINE MONITOR ASSEMBLY...24446
REMOVE AND INSTALL MASS AIR FLOW AND TEMPERATURE SENSOR...24448
METHOD FOR REMOVING MASS AIR FLOW AND TEMPERATURE SENSOR...24448
METHOD FOR INSTALLING MASS AIR FLOW AND TEMPERATURE SENSOR...24448
REMOVE AND INSTALL KCCV CRANKCASE PRESSURE SENSOR...24450
METHOD FOR REMOVING KCCV CRANKCASE PRESSURE SENSOR...24450
METHOD FOR INSTALLING KCCV CRANKCASE PRESSURE SENSOR...24451
REMOVE AND INSTALL KDPF TEMPERATURE SENSOR...24452
METHOD FOR REMOVING KDPF TEMPERATURE SENSOR...24452
METHOD FOR INSTALLING KDPF TEMPERATURE SENSOR...24455
REMOVE AND INSTALL KDPF DIFFERENTIAL PRESSURE SENSOR...24458
METHOD FOR REMOVING KDPF DIFFERENTIAL PRESSURE SENSOR...24458
METHOD FOR INSTALLING KDPF DIFFERENTIAL PRESSURE SENSOR...24461
REMOVE AND INSTALL SCR TEMPERATURE SENSOR...24464
METHOD FOR REMOVING SCR TEMPERATURE SENSOR...24464
METHOD FOR INSTALLING SCR TEMPERATURE SENSOR...24467
REMOVE AND INSTALL AMMONIA SENSOR...24470
METHOD FOR REMOVING AMMONIA SENSOR...24470
METHOD FOR INSTALLING AMMONIA SENSOR...24471
REMOVE AND INSTALL SCR OUTLET NOx SENSOR...24473
METHOD FOR REMOVING SCR OUTLET NOx SENSOR...24473
METHOD FOR INSTALLING SCR OUTLET NOx SENSOR...24474
REMOVE AND INSTALL KOMTRAX TERMINAL ASSEMBLY...24476
METHOD FOR REMOVING KOMTRAX TERMINAL ASSEMBLY...24476
METHOD FOR INSTALLING KOMTRAX TERMINAL ASSEMBLY...24477
60 MAINTENANCE STANDARD...24479
CONTENTS...24480
ABBREVIATION LIST...24482
ENGINE AND COOLING SYSTEM...24488
MAINTENANCE STANDARD OF ENGINE MOUNT...24488
MAINTENANCE STANDARD OF BRAKE AND COOLING FAN PUMP...24489
MAINTENANCE STANDARD OF SERVO VALVE OF BRAKE AND COOLING FAN PUMP...24491
MAINTENANCE STANDARD OF COOLING FAN MOTOR...24492
POWER TRAIN...24494
MAINTENANCE STANDARD OF DRIVE SHAFT...24494
MAINTENANCE STANDARD OF TORQUE CONVERTER...24495
MAINTENANCE STANDARD OF LOCKUP CLUTCH ECMV...24497
MAINTENANCE STANDARD OF TRANSMISSION...24498
MAINTENANCE STANDARD OF F, R CLUTCH...24503
MAINTENANCE STANDARD OF 1ST, 4TH CLUTCH...24504
MAINTENANCE STANDARD OF 2ND, 3RD CLUTCH...24505
MAINTENANCE STANDARD OF TRANSMISSION CONTROL VALVE...24506
MAINTENANCE STANDARD OF FORWARD AND REVERSE CLUTCH ECMV AND GEAR SPEED CLUTCH ECMV...24507
MAINTENANCE STANDARD OF MAIN RELIEF VALVE AND TORQUE CONVERTER RELIEF VALVE...24508
MAINTENANCE STANDARD OF FRONT AXLE...24509
MAINTENANCE STANDARD OF REAR AXLE...24510
MAINTENANCE STANDARD OF FRONT CONVENTIONAL DIFFERENTIAL...24511
MAINTENANCE STANDARD OF REAR CONVENTIONAL DIFFERENTIAL...24512
MAINTENANCE STANDARD OF FRONT LIMITED SLIP DIFFERENTIAL...24513
MAINTENANCE STANDARD OF REAR LIMITED SLIP DIFFERENTIAL...24515
MAINTENANCE STANDARD OF FINAL DRIVE...24517
STEERING SYSTEM...24519
MAINTENANCE STANDARD OF STEERING COLUMN...24519
MAINTENANCE STANDARD OF STEERING PUMP...24520
MAINTENANCE STANDARD OF SERVO VALVE OF STEERING PUMP...24523
MAINTENANCE STANDARD OF STEERING VALVE...24524
MAINTENANCE STANDARD OF STEERING CYLINDER...24526
MAINTENANCE STANDARD OF SECONDARY STEERING PUMP...24528
BRAKE SYSTEM...24529
MAINTENANCE STANDARD OF CHARGE VALVE...24529
MAINTENANCE STANDARD OF BRAKE CIRCUIT ACCUMULATOR...24531
MAINTENANCE STANDARD OF FRONT BRAKE...24532
MAINTENANCE STANDARD OF REAR BRAKE...24533
MAINTENANCE STANDARD OF PARKING BRAKE...24534
MAINTENANCE STANDARD OF PARKING BRAKE SOLENOID VALVE...24535
MAINTENANCE STANDARD OF FLOW PRIORITY VALVE...24536
MAINTENANCE STANDARD OF BRAKE COOLING PUMP...24537
MAINTENANCE STANDARD OF BRAKE COOLING STRAINER...24538
UNDERCARRIAGE AND FRAME...24539
MAINTENANCE STANDARD OF FRAME, AXLE MOUNT AND CENTER HINGE PIN...24539
HYDRAULIC SYSTEM...24544
MAINTENANCE STANDARD OF HYDRAULIC TANK...24544
MAINTENANCE STANDARD OF WORK EQUIPMENT PUMP...24545
MAINTENANCE STANDARD OF SERVO VALVEWORK OF EQUIPMENT PUMP...24548
MAINTENANCE STANDARD OF POWER TRAIN CHARGE PUMP AND POWER TRAIN LUBRICATION PUMP...24550
MAINTENANCE STANDARD OF CONTROL VALVE...24551
MAINTENANCE STANDARD OF STABILIZER VALVE...24563
MAINTENANCE STANDARD OF WORK EQUIPMENT LOCK SOLENOID VALVE...24564
WORK EQUIPMENT...24565
MAINTENANCE STANDARD OF WORK EQUIPMENT LINKAGE...24565
MAINTENANCE STANDARD OF BUCKET...24568
MAINTENANCE STANDARD OF LIFT CYLINDER...24569
MAINTENANCE STANDARD OF BUCKET CYLINDER...24570
80 APPENDIX...24571
CONTENTS...24572
ABBREVIATION LIST...24574
AIR CONDITIONER SYSTEM...24580
PRECAUTIONS FOR REFRIGERANT...24580
AIR CONDITIONER COMPONENT...24581
SPECIFICATIONS OF AIR CONDITIONER...24583
CONFIGURATION AND FUNCTION OF REFRIGERATION CYCLE...24584
OUTLINE OF REFRIGERATION CYCLE...24585
COMPONENT PARTS OF AIR CONDITIONER SYSTEM...24587
AIR CONDITIONER UNIT...24587
CONFIGURATION DIAGRAM OF AIR CONDITIONER UNIT...24587
FUNCTION OF AIR CONDITIONER UNIT...24588
COMPONENT PARTS OF AIR CONDITIONER UNIT...24589
FUNCTION OF EVAPORATOR AS AIR CONDITIONER UNIT COMPONENT...24589
FUNCTION OF INSIDE AIR TEMPERATURE SENSOR AS AIR CONDITIONER UNIT COMPONENT...24589
FUNCTION OF BLOWER AMPLIFIER AS AIR CONDITIONER UNIT COMPONENT...24590
FUNCTION OF BLOWER OFF RELAY AS AIR CONDITIONER UNIT COMPONENT...24590
FUNCTION OF COMPRESSOR CLUTCH RELAY AS AIR CONDITIONER UNIT COMPONENT...24590
FUNCTION OF HEATER CORE AS AIR CONDITIONER UNIT COMPONENT...24590
FUNCTION OF EVAPORATOR TEMPERATURE SENSOR AS AIR CONDITIONER UNIT COMPONENT...24590
FUNCTION OF SERVO MOTOR AS AIR CONDITIONER UNIT COMPONENT...24591
FUNCTION OF EXPANSION VALVE AS AIR CONDITIONER UNIT COMPONENT...24591
FUNCTION OF DUAL PRESSURE SWITCH...24591
AIR CONDITIONER CONTROLLER...24592
STRUCTURE OF AIR CONDITIONER CONTROLLER...24592
COMPRESSOR...24593
STRUCTURE OF COMPRESSOR...24593
SPECIFICATIONS OF COMPRESSOR...24593
FUNCTION OF COMPRESSOR...24593
CONDENSER...24594
STRUCTURE OF CONDENSER...24594
SPECIFICATIONS OF CONDENSER...24594
FUNCTION OF CONDENSER...24594
RECEIVER DRIER...24595
STRUCTURE OF RECEIVER DRIER...24595
SPECIFICATIONS OF RECEIVER DRIER...24595
FUNCTION OF RECEIVER DRIER...24595
SENSORS FOR AIR CONDITIONER SYSTEM...24596
FUNCTION OF SUNLIGHT SENSOR...24596
FUNCTION OF AMBIENT TEMPERATURE SENSOR...24596
EXPLANATION OF PROCEDURE FOR TESTING AND TROUBLESHOOTING OF AIR CONDITIONER...24597
CIRCUIT DIAGRAM AND ARRANGEMENT OF CONNECTOR PINS FOR AIR CONDITIONER...24599
AIR CONDITIONER SYSTEM DIAGRAM...24602
INPUT AND OUTPUT SIGNALS OF AIR CONDITIONER CONTROLLER...24603
FUNCTION OF AIR CONDITIONER CONTROLLER...24604
INSTALLATION LOCATIONS OF AIR CONDITIONER PARTS AND ARRANGEMENT OF CONNECTORS...24605
TESTING AIR CONDITIONER USING SELF-DIAGNOSIS FUNCTION...24611
HOW TO OPEN THE ELECTRICAL SYSTEM ABNORMALITY RECORD SCREEN IN SERVICE MODE OF THE MACHINE MONITOR...24612
CHECK TEMPERATURE CONTROL FUNCTION...24613
METHOD FOR CHECKING TEMPERATURE CONTROL FUNCTION...24613
TEST VENT (MODE) CHANGEOVER...24615
METHOD FOR TESTING VENT (MODE) CHANGEOVER...24615
TESTING FRESH/RECIRC AIR CHANGEOVER...24617
METHOD FOR TESTING FRESH/RECIRC AIR CHANGEOVER...24617
TEST EVAPORATOR TEMPERATURE SENSOR...24619
TEST RELAYS...24621
METHOD FOR TESTING RELAYS...24621
AIR CONDITIONER TROUBLESHOOTING CHART 1...24623
AIR CONDITIONER TROUBLESHOOTING CHART 2...24624
FAILURE CODE [879AKA]...24627
FAILURE CODE [879AKB]...24629
FAILURE CODE [879BKA]...24631
FAILURE CODE [879BKB]...24633
FAILURE CODE [879CKA]...24635
FAILURE CODE [879CKB]...24637
FAILURE CODE [879DKZ]...24639
FAILURE CODE [879EMC]...24641
FAILURE CODE [879FMC]...24644
A-1 TROUBLESHOOTING FOR POWER SUPPLY SYSTEM (AIR CONDITIONER DOES NOT OPERATE)...24647
A-2 TROUBLESHOOTING FOR COMPRESSOR AND REFRIGERANT SYSTEM (AIR IS NOT COOLED)...24650
A-3 TROUBLESHOOTING FOR BLOWER MOTOR SYSTEM (NO AIR COMES OUT OR AIR FLOW IS ABNORMAL)...24653
A-4 TROUBLESHOOTING FOR FRESH/RECIRC AIR CHANGEOVER...24657
TROUBLESHOOTING USING GAUGE PRESSURE...24659
CONNECTION OF SERVICE TOOL...24662
METHOD FOR CONNECTING SERVICE TOOL...24663
PRECAUTIONS FOR DISCONNECTING AND CONNECTING HOSES AND TUBES IN AIR CONDITIONER PIPINGS...24664
HANDLE COMPRESSOR OIL...24666
90 CIRCUIT DIAGRAMS...24669
CONTENTS...24670
ABBREVIATION LIST...24671
HYDRAULIC CIRCUIT DIAGRAM...24677
SYMBOLS USED IN HYDRAULIC CIRCUIT DIAGRAM...24677
HYDRAULIC CIRCUIT DIAGRAM...24681
POWER TRAIN HYDRAULIC CIRCUIT DIAGRAM...24682
HYDRAULIC OIL PRESSURE OF BRAKE COOLING SYSTEM...24684
HYDRAULIC AUTO-GREASING DIAGRAM...24686
ELECTRICAL CIRCUIT DIAGRAM...24687
SYMBOLS USED IN ELECTRICAL CIRCUIT DIAGRAM...24687
ELECTRICAL CIRCUIT DIAGRAM OF MACHINE (1/10)...24691
ELECTRICAL CIRCUIT DIAGRAM OF MACHINE (2/10)...24692
ELECTRICAL CIRCUIT DIAGRAM OF MACHINE (3/10)...24693
ELECTRICAL CIRCUIT DIAGRAM OF MACHINE (4/10)...24694
ELECTRICAL CIRCUIT DIAGRAM OF MACHINE (5/10)...24695
ELECTRICAL CIRCUIT DIAGRAM OF MACHINE (6/10)...24696
ELECTRICAL CIRCUIT DIAGRAM OF MACHINE (7/10)...24697
ELECTRICAL CIRCUIT DIAGRAM OF MACHINE (8/10)...24698
ELECTRICAL CIRCUIT DIAGRAM OF MACHINE (9/10)...24699
ELECTRICAL CIRCUIT DIAGRAM OF MACHINE (10/10)...24700
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR NORTH AMERICA) (1/8)...24701
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR NORTH AMERICA) (2/8)...24702
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR NORTH AMERICA) (3/8)...24703
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR NORTH AMERICA) (4/8)...24704
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR NORTH AMERICA) (5/8)...24705
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR NORTH AMERICA) (6/8)...24706
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR NORTH AMERICA) (7/8)...24707
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR NORTH AMERICA) (8/8)...24708
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR EUROPEAN UNION AND JAPAN) (1/9)...24709
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR EUROPEAN UNION AND JAPAN) (2/9)...24710
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR EUROPEAN UNION AND JAPAN) (3/9)...24711
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR EUROPEAN UNION AND JAPAN) (4/9)...24712
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR EUROPEAN UNION AND JAPAN) (5/9)...24713
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR EUROPEAN UNION AND JAPAN) (6/9)...24714
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR EUROPEAN UNION AND JAPAN) (7/9)...24715
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR EUROPEAN UNION AND JAPAN) (8/9)...24716
ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (FOR EUROPEAN UNION AND JAPAN) (9/9)...24717
INDEX...24718
VEBM440101 - Wheel Loader WA380-6 Shop Manual...24740
VEBM440101 WA380-6...24740
00 Index and foreword...24742
Composition of shop manual...24743
Table of contents...24745
Index and foreword...24756
Safety notice...24757
How to read the shop manual...24762
Explanation of terms for maintenance standard...24764
Handling electric equipment and hydraulic component...24766
How to read electric wire code...24778
Precautions when carrying out operation...24781
Method of disassembling and connecting push-pull type coupler...24784
Standard tightening torque table...24787
Conversion table...24791
01 Specification...24796
Specification and technical data...24798
Specification dimension drawing...24798
Specifications...24799
Weight table...24803
Table of fuel, coolant and lubricants...24805
10 Structure, function and maintenance standard...24806
Engine and cooling system...24807
Engine mount and transmission mount...24807
Cooling system...24808
Cooling fan pump...24809
Cooling fan motor...24817
Power train...24826
Power train...24826
Power train system diagram...24827
Drive shaft...24829
Power train piping diagram...24830
Torque converter...24831
Transmission...24839
Flow control valve...24856
Valve assembly...24857
ECMV...24858
Main relief valve and torque converter relief valve...24865
Axle...24867
Differential...24869
Limited slip differential...24874
Final drive...24881
Steering system...24885
Steering piping diagram...24885
Steering column...24886
Steering pump...24887
Steering valve...24898
Orbit-roll valve...24913
Stop valve...24917
Steering relief valve...24918
Steering cylinder...24919
Emergency steering motor...24921
Emergency steering pump...24922
Brake system...24925
Brake piping diagram...24925
Charge valve...24926
Brake valve...24933
Accumulator (for brake)...24938
Brake...24939
Parking brake control...24944
Parking brake...24945
Parking brake solenoid valve...24947
Emergency parking brake release valve...24949
Undercarriage and frame...24951
Axle mount and center hinge pin...24951
Tires...24955
Hydraulic system, Part 1...24957
Hydraulic piping diagram...24957
Work equipment control lever linkage...24960
Hydraulic tank...24961
Power train pump...24963
Work equipment pump...24964
Work equipment control valve...24975
CLSS...24989
Each function and operation of each valve...24993
Hydraulic system, Part 2...25017
PPC valve...25017
Stabilizer valve...25023
Accumulator (for PPC circuit)...25028
Accumulator (for ECSS)...25029
Work equipment...25031
Work equipment linkage...25031
Bucket...25033
Bucket positioner and boom kick-out...25034
Work equipment cylinder...25040
Cab and its attachments...25044
Cab...25044
Air conditioner...25045
Electrical system, Part 1...25059
Machine monitor system...25059
Machine monitor...25064
Electrical system, Part 2...25087
Electrical system (Transmission controller system)...25087
Transmission controller...25121
Electrical system, Part 3...25125
Electric transmission control...25125
Kickdown switch and hold switch...25129
KOMTRAX terminal system...25131
Engine starting circuit...25133
Engine stopping circuit...25135
Preheating circuit...25136
Engine power mode selector circuit...25137
Engine output derating function...25138
Automatic warm-up function...25138
Parking brake circuit...25139
Sensor...25141
Standard service value table...25151
Standard service value table for engine...25151
Standard service value table for chassis...25152
20 Standard value table...25150
Standard service value table...25151
30 Testing and adjusting...25160
Testing and adjusting, Part 1...25162
Tools for testing, adjusting, and troubleshooting...25162
Measuring engine speed...25165
Measuring exhaust gas color...25167
Adjusting valve clearance...25169
Measuring compression pressure...25171
Measuring blow-by pressure...25174
Measuring engine oil pressure...25175
Measuring intake air (boost) pressure...25176
Handling fuel system equipment...25177
Releasing residual pressure in fuel system...25177
Measuring fuel pressure...25178
Measuring fuel return rate and leakage...25180
Bleeding air from fuel circuit...25183
Testing leakage in fuel system...25185
Handling reduced cylinder mode operation...25186
Handling no-injection cranking operation...25186
Handling controller voltage circuit...25187
Testing and adjusting air conditioner compressor belt tension...25188
Adjusting transmission speed sensor...25189
Measuring directional lever...25190
Measuring and adjusting power train oil pressure...25191
Procedure for flushing torque converter and transmission hydraulic circuit...25206
Method of moving machine when transmission valve is broken...25207
Testing and adjusting steering stop valve...25209
Testing and adjusting steering wheel...25211
Testing steering oil pressure...25213
Bleeding air from steering circuit...25216
Testing and adjusting, Part 2...25220
Testing hydraulic drive fan...25220
Bleeding air from hydraulic drive fan circuit...25222
Measuring brake pedal...25224
Measuring brake performance...25225
Testing and adjusting accumulator charge pressure...25226
Testing wheel brake oil pressure...25227
Measuring wear of wheel brake disc...25229
Bleeding air from wheel brake circuit...25230
Releasing residual pressure in brake accumulator circuit...25231
Testing parking brake performance...25232
Measuring parking brake oil pressure...25233
Testing wear of parking brake disc...25235
Method of releasing parking brake manually...25236
Measuring and adjusting work equipment control lever...25237
Measuring and adjusting work equipment PPC oil pressure...25238
Measuring and adjusting work equipment oil pressure...25241
Bleeding air from work equipment circuit...25245
Releasing residual pressure in work equipment circuit...25246
Testing and adjusting bucket positioner...25247
Testing and adjusting boom kick- out...25249
Checking proximity switch operation pilot lamp...25250
Procedure for testing diodes...25251
Preparation work for troubleshooting for electric system...25252
How to start operation of KOMTRAX terminal...25257
Lamp display of KOMTRAX terminal...25262
Adjusting machine monitor...25265
Adjusting replaced, reassembled or added sensor, controller, etc. with machine monitor...25266
Testing and adjusting, Part 3...25269
Special functions of machine monitor (EMMS)...25269
Pm-click inspection table...25328
40 Troubleshooting...25330
General information on troubleshooting...25331
Points to remember when troubleshooting...25331
Sequence of events in troubleshooting...25332
Testing before troubleshooting...25333
Classification and procedures of troubleshooting...25334
Connection table for connector pin numbers...25337
T-branch box and T-branch adapter table...25360
Troubleshooting by failure code (Display of code), Part 1...25366
Failure codes list...25366
Before carrying out troubleshooting for electrical system...25373
Information contained troubleshooting table...25376
Failure code [1500L0] (TORQFLOW transmission: Double meshing)...25378
Failure code [15SAL1] (ECMV F clutch: When command current is OFF, fill signal is ON)...25379
Failure code [15SALH] (ECMV F clutch: When command current is ON, fill signal is OFF)...25381
Failure code [15SBL1] (ECMV R clutch: When command current is OFF, fill signal is ON)...25383
Failure code [15SBLH] (ECMV R clutch: When command current is ON, fill signal is OFF)...25385
Failure code [15SEL1] (ECMV 1st clutch: When command current is OFF, fill signal is ON)...25387
Failure code [15SELH] (ECMV 1st clutch: When command current is ON, fill signal is OFF)...25389
Failure code [15SFL1] (ECMV 2nd clutch: When command current is OFF, fill signal is ON)...25391
Failure code [15SFLH] (ECMV 2nd clutch: When command current is ON, fill signal is OFF)...25393
Failure code [15SGL1] (ECMV 3rd clutch: When command current is OFF, fill signal is ON)...25395
Failure code [15SGLH] (ECMV 3rd clutch: When command current is ON, fill signal is OFF)...25397
Failure code [15SHL1] (ECMV 4th clutch: When command current is OFF, fill signal is ON)...25399
Failure code [15SHLH] (ECMV 4th clutch: When command current is ON, fill signal is OFF)...25401
Failure code [2F00MA] (Parking brake: Malfunction)...25403
Troubleshooting by failure code (Display of code), Part 2...25409
Failure code [2G43ZG] (Accumulator: Low oil pressure)...25409
Failure code [AA1ANX] (Air cleaner: Clogging)...25411
Failure code [AB00L6] (Alternator: Signal disagrees with operating state of engine)...25413
Failure code [AB00MA] (Alternator: Malfunction)...25415
Failure code [B@BAZG] (Rotation derating by low engine oil pressure)...25417
Failure code [B@BAZK] (Engine oil: Low level)...25418
Failure code [B@BCNS] (Coolant: Overheating)...25419
Failure code [B@BCZK] (Coolant: Low level)...25421
Failure code [B@C7NS] (Brake oil: Overheating)...25423
Failure code [b@CENS] (Torque converter oil: Overheating)...25425
Failure code [B@CENS] (Torque converter oil: Overheating)...25427
Failure code [B@HANS] (Hydraulic oil: Overheating)...25429
Failure code [CA111] (Abnormality in engine controller)...25431
Failure code [CA115] (Engine Ne or Bkup speed sensor error)...25432
Failure code [CA122] (Charge pressure sensor high error)...25433
Failure code [CA123] (Charge pressure sensor low error)...25435
Failure code [CA131] (Throttle sensor high error)...25437
Failure code [CA132] (Throttle sensor low error)...25439
Failure code [CA144] (Coolant sensor high error)...25441
Failure code [CA145] (Coolant sensor low error)...25443
Failure code [CA153] (Charge temperature sensor high error)...25445
Failure code [CA154] (Charge temperature sensor low error)...25447
Failure code [CA155] (Derating of speed by abnormally high charge temperature)...25449
Failure code [CA187] (Sensor power supply 2 low error)...25451
Failure code [CA221] (Atmospheric pressure sensor high error)...25453
Failure code [CA222] (Atmospheric sensor low error)...25455
Failure code [CA227] (Sensor power supply 2 high error)...25457
Troubleshooting by failure code (Display of code), Part 3...25460
Failure code [CA234] (Engine overspeed)...25460
Failure code [CA238] (Ne speed sensor power supply error)...25461
Failure code [CA271] (PCV1 Short circuit)...25462
Failure code [CA272] (PCV1 Disconnection)...25463
Failure code [CA322] (Injector #1 (L/B #1) open/short error)...25465
Failure code [CA323] (Injector #5 (L/B #5) open/short error)...25467
Failure code [CA324] (Injector #3 (L/B #3) open/short error)...25469
Failure code [CA325] (Injector #6 (L/B #6) open/short error)...25471
Failure code [CA331] (Injector #2 (L/B #2) open/short error)...25473
Failure code [CA332] (Injector #4 (L/B #4) open/short error)...25475
Failure code [CA342] (Calibration code inconsistency)...25477
Failure code [CA351] (Injectors drive circuit error)...25478
Failure code [CA352] (Sensor power supply 1 low error)...25480
Failure code [CA386] (Sensor power supply 1 high error)...25482
Failure code [CA428] (Abnormally high level in water sensor)...25483
Failure code [CA429] (Abnormally low level in water sensor)...25485
Failure code [CA431] (Idle validation switch error)...25487
Failure code [CA432] (Idle validation action error)...25489
Failure code [CA435] (Engine oil pressure switch error)...25491
Failure code [CA441] (Battery voltage low error)...25492
Failure code [CA442] (Battery voltage high error)...25495
Failure code [CA449] Common rail pressure high error 2...25497
Failure code [CA451] (Common rail pressure sensor high error)...25498
Failure code [CA452] (Common rail pressure sensor low error)...25500
Failure code [CA488] (Derating of torque by abnormally high charge temperature)...25502
Failure code [CA553] (Common rail pressure high error 1)...25503
Failure code [CA559] (Supply pump pressure very low error)...25504
Failure code [CA689] (Engine Ne speed sensor error)...25505
Failure code [CA731] (Engine Bkup speed sensor phase error)...25507
Failure code [CA757] (All continuous data lost error)...25508
Failure code [CA778] (Engine Bkup speed sensor error)...25511
Failure code [CA1117] (Partial engine controller data loss error)...25513
Failure code [CA1633] (KOMNET datalink timeout error)...25516
Troubleshooting by failure code (Display of code), Part 4...25520
Failure code [CA2185] (Throttle sensor supply voltage high error)...25520
Failure code [CA2186] (Throttle sensor power supply low error)...25521
Failure code [CA2249] (Supply pump pressure very low error 2)...25522
Failure code [CA2311] (Abnormality in IMV solenoid)...25523
Failure code [CA2555] (Intake heater relay disconnection error)...25525
Failure code [CA2556] (Intake heater relay short circuit error)...25527
Failure code [D150KA] (Emergency steering relay: Disconnection)...25529
Failure code [D150KB] (Emergency steering relay: Short circuit)...25531
Failure code [D150KY] (Emergency steering relay: Short circuit with power supply line)...25533
Failure code [D160KA] (Backup lamp relay: Disconnection)...25535
Failure code [D160KB] (Backup lamp relay: Short circuit)...25537
Failure code [D191KA] (Joystick steering neutral safety relay: Disconnection)...25539
Failure code [D191KB] (Joystick steering neutral safety relay: Short circuit)...25541
Failure code [D191KY] (Joystick steering neutral safety relay: Short circuit with power supply line)...25543
Failure code [D192KA] (ECSS solenoid: Disconnection)...25545
Failure code [D192KB] (ECSS solenoid: Short circuit)...25546
Failure code [D192KY] (ECSS solenoid: Short circuit with power supply line)...25547
Failure code [D5ZHKA] (Terminal C signal: Disconnection)...25548
Failure code [D5ZHKB] (Terminal C signal: Short circuit)...25552
Failure code [D5ZHL6] (Terminal C signal: Signal does not match engine running or stopped state)...25556
Failure code [DA80L4] (Auto grease controller: ON/OFF signals disagree)...25559
Failure code [DAF3KK] (Machine monitor: Low source voltage (input))...25561
Failure code [DAF5KP] (Machine monitor: Low output voltage)...25563
Failure code [DAFRKR] (CAN communication with machine monitor: Defective communication (Abnormality in target component system))...25566
Failure code [DAQ0KK] (Transmission controller: Low source voltage)...25568
Failure code [DAQ0KT] (Transmission controller: Abnormality in controller)...25570
Failure code [DAQ2KK] (Transmission controller load power supply line: Low source voltage (input))...25571
Failure code [DAQ9KQ] (Transmission controller model selection: Disagreement of model selection signals)...25573
Troubleshooting by failure code (Display of code), Part 5...25576
Failure code [DAQRKR] (CAN communication with transmission controller: Defective communication (Abnormality in target component system))...25576
Failure code [DAQRMA] (Transmission controller option setting: Malfunction)...25578
Failure code [DB2RKR] (CAN communication with engine controller: Defective communication (Abnormality in target component system)...25579
Failure code [DB99KQ] (Work equipment controller model selection: Disagreement in model selection signals)...25582
Failure code [DB9RKR] CAN communication with work equipment controller: Defective communication (Abnormality in target component system))...25583
Failure code [DB9RMA] (Work equipment controller option setting: Malfunction)...25585
Failure code [DD15LD] t switch (Panel switch 1): Switch is kept pressed for long time...25587
Failure code [DD16LD] U switch (Panel switch 2): Switch is kept pressed for long time...25589
Failure code [DD17LD] < switch (Panel switch 3): Switch is kept pressed for long time...25591
Failure code [DD18LD] > switch (Panel switch 4): Switch is kept pressed for long time...25593
Failure code [DD1CLD] Load meter subtotal switch: Switch is kept pressed for long time...25595
Failure code [DD1FLD] Load meter mode selector switch (A/B): Switch is kept pressed for long time...25597
Failure code [DD1GLD] Load meter mode selector switch (+/-): Switch is kept pressed for long time...25599
Failure code [DD1HLD] (Load meter display selector switch: Switch is kept pressed for long time)...25601
Failure code [DD1NLD] (Fan reverse switch: Switch is kept pressed for long time)...25603
Failure code [DD1NL4] (Fan automatic reverse switch: Switch is kept pressed for long time)...25605
Failure code [DDB6L4] (Parking brake switch (Neutralizer): ON/OFF signals disagree)...25607
Troubleshooting by failure code (Display of code), Part 6...25613
Failure code [DDK3KA] (Right FNR switch: Disconnection)...25613
Failure code [DDK6KA] (FNR lever switch: Disconnection)...25616
Failure code [DDK6KB] (FNR lever switch: Short circuit)...25619
Failure code [DDT0L4] (Shift mode selector switch: ON/OFF signals disagree)...25621
Failure code [DDT4LD] (Transmission cut-off set switch: Switch is kept pressed for long time)...25623
Failure code [DDW9LD] (Kick-down switch: Switch is kept pressed for long time)...25625
Failure code [DDWLLD] (Hold switch: Switch is kept pressed for long time)...25627
Failure code [DDY0LD] (Load meter cancel switch: Switch is kept pressed for long time)...25629
Failure code [DF10KA] (Transmission shift lever switch: Disconnected)...25631
Failure code [DF10KB] (Transmission shift lever switch: Short circuit)...25635
Failure code [DGF1KA] (Transmission oil temperature sensor: Disconnected)...25637
Failure code [DGF1KB] (Transmission oil temperature sensor: Short circuit)...25639
Failure code [DGH2KX] (Hydraulic oil temperature sensor: Out of input signal range)...25641
Failure code [DGR2KA] (Rear brake oil temperature sensor: Disconnected)...25643
Failure code [DGR2KX] (Rear brake oil temperature sensor: Out of input signal range)...25645
Failure code [DGT1KX] (Torque converter oil temperature sensor: Out of input signal range)...25647
Troubleshooting by failure code (Display of code), Part 7...25651
Failure code [DHPCKX] (Lift arm cylinder bottom pressure sensor: Out of input signal range)...25651
Failure code [DHPDKX] (Lift arm cylinder head pressure sensor: Out of input signal range)...25653
Failure code [DHT1KX] (Transmission cut-off pressure sensor: Out of input signal range)...25655
Failure code [DHT8KA] (Steering pump pressure sensor: Disconnection)...25657
Failure code [DHT8KB] (Steering pump pressure sensor: Short circuit)...25659
Troubleshooting by failure code (Display of code), Part 8...25663
Failure code [DLT3KA] (Transmission output shaft speed sensor: Disconnection)...25663
Failure code [DLT3LC] (Transmission output shaft speed sensor: Out of input signal range)...25665
Failure code [DT20KB] (Transmission cut-off indicator lamp: Short circuit)...25667
Failure code [DV00KB] (Alarm buzzer: Short circuit)...25669
Troubleshooting by failure code (Display of code), Part 9...25673
Failure code [DW7BKA] (Fan reverse solenoid: Disconnection)...25673
Failure code [DW7BKB] (Fan reverse solenoid: Short circuit)...25674
Failure code [DW7BKY] (Fan reverse solenoid: Short circuit with power supply line)...25675
Failure code [DX16KA] (Fan pump EPC solenoid: Disconnection)...25677
Failure code [DX16KB] (Fan pump EPC solenoid: Short circuit)...25678
Failure code [DX16KY] (Fan pump EPC solenoid: Short circuit with power supply line)...25679
Failure code [DXH1KA] (Lockup ECMV solenoid: Disconnection)...25681
Failure code [DXH1KB] (Lockup ECMV solenoid: Short circuit)...25683
Failure code [DXH1KY] (Lockup ECMV solenoid: Short circuit with power supply line)...25685
Failure code [DXH4KA] (1st clutch ECMV solenoid: Disconnection)...25687
Failure code [DXH4KB] (1st clutch ECMV solenoid: Short circuit)...25689
Troubleshooting by failure code (Display of code), Part 10...25695
Failure code [DXH4KY] (1st clutch ECMV solenoid: Short circuit with power supply line)...25695
Failure code [DXH5KA] (2nd clutch ECMV solenoid: Disconnection)...25697
Failure code [DXH5KB] (2nd clutch ECMV solenoid: Short circuit)...25699
Failure code [DXH5KY] (2nd clutch ECMV solenoid: Short circuit with power supply line)...25701
Failure code [DXH6KA] (3rd clutch ECMV solenoid: Disconnection)...25703
Failure code [DXH6KB] (3rd clutch ECMV solenoid: Short circuit)...25705
Failure code [DXH6KY] (3rd clutch ECMV solenoid: Short circuit with power supply line)...25707
Failure code [DXH7KA] (R clutch ECMV solenoid: Disconnection)...25709
Failure code [DXH7KB] (R clutch ECMV solenoid: Short circuit)...25711
Failure code [DXH7KY] (R clutch ECMV solenoid: Short circuit with power supply line)...25713
Failure code [DXH8KA] (F clutch ECMV solenoid: Disconnection)...25715
Failure code [DXH8KB] (F clutch ECMV solenoid: Short circuit)...25717
Failure code [DXH8KY] (F clutch ECMV solenoid: Short circuit with power supply line)...25719
Failure code [DXHHKA] (4th clutch ECMV solenoid: Disconnection)...25721
Failure code [DXHHKB] (4th clutch ECMV solenoid: Short circuit)...25723
Failure code [DXHHKY] (4th clutch ECMV solenoid: Short circuit with power supply line)...25725
Troubleshooting of electrical system (E-mode)...25730
Before carrying out troubleshooting for electrical system...25730
Information in troubleshooting table...25733
E-1 Engine does not start...25734
E-2 Wiper does not operate...25741
E-3 Windshield washer does not operate...25745
E-4 Headlamp, clearance lamp, tail lamp, and license lamp do not light up or go off...25749
E-5 Working lamp does not light up or go off...25757
E-6 Turn signal lamp and hazard lamp do not light up or go off...25762
E-7 Brake lamp does not light or it keeps lighting up...25768
E-8 Backup lamp does not light or it keeps lighting up...25770
E-9 Backup buzzer does not sound or it keeps sounding...25772
E-10 Horn does not sound or it keeps sounding...25774
E-11 Alarm buzzer does not sound or it keeps sounding...25777
E-12 Air conditioner does not operate or stop...25779
E-13 The KOMTRAX system does not work properly...25782
Troubleshooting of hydraulic and mechanical system (H-mode)...25786
Method of using troubleshooting chart...25786
Table of failure modes and causes...25789
H-1 The machine does not start...25793
H-2 Torque converter lockup is not switched off (engine stalls) [Machine with lockup clutch (if equipped)]...25795
H-3 Torque converter lockup is not switched on [Machine with lockup clutch (if equipped)]...25796
H-4 The travel speed is slow, the thrusting force is weak, the uphill traveling power is weak, and the gear is not shifted...25797
H-5 Shocks are large at the times of starting and shifting gear...25799
H-6 Time lag is large at the times of starting and shifting gear...25801
H-7 The torque converter oil temperature is high...25803
H-8 Steering does not turn...25804
H-9 Steering does not turn [Machine with joystick steering (if equipped)]...25805
H-10 Steering response is low...25806
H-11 Turning, response of steering is poor [machine with joystick steering (if equipped)]...25807
H-12 Steering is heavy...25808
H-13 When machine turns, it shakes or makes large shocks...25809
H-14 When machine turns, it shakes or makes large shocks [machine with joystick steering (if equipped)]...25810
H-15 The wheel brake does not work or does not work well...25811
H-16 The wheel brake is not released or it drags...25812
H-17 The parking brake does not work or does not work well...25813
H-18 The parking brake is not released or it drags (including emergency release system)...25814
H-19 Lift arm does not rise...25815
H-20 Lift arm speed is low or rising force of lift arm is insufficient...25816
H-21 When rising, the lift arm comes to move slowly at specific height...25817
H-22 The lift arm cylinder cannot hold down the bucket (Bucket floats)...25817
H-23 Hydraulic drifts of the lift arm is large...25817
H-24 The lift arm wobbles during operation...25817
H-25 Bucket does not tilt back...25818
H-26 Bucket speed is low or tilting back force is insufficient...25819
H-27 The bucket comes to operate slowly in the midst of tilting-back...25820
H-28 The bucket cylinder cannot hold down the bucket...25820
H-29 Hydraulic drifts of the bucket is large...25820
H-30 The bucket wobbles during travel with cargo (The work equipment valve is set to “HOLD”)...25820
H-31 Lift arm and bucket control levers do not move smoothly and are heavy...25821
H-32 During operation of the machine, engine speed lowers remarkably or engine stalls...25822
H-33 Large shock is made when work equipment starts and stops...25822
H-34 When work equipment circuit is relieved singly, other work equipment moves...25822
H-35 ECSS does not operate, and pitching, bouncing occur...25823
Troubleshooting of engine (S-mode)...25826
Method of using troubleshooting chart...25826
S-1 Engine does not start easily...25829
S-2 Engine does not start...25830
S-3 Engine does not pick up smoothly...25833
S-4 Engine stops during operations...25834
S-5 Engine does not rotate smoothly...25835
S-6 Engine lacks output (or lacks power)...25836
S-7 Exhaust smoke is black (Incomplete combustion)...25837
S-8 Oil consumption is excessive (or exhaust smoke is blue)...25838
S-9 Engine oil becomes contaminated quickly...25839
S-10 Fuel consumption is excessive...25840
S-11 Coolant contains oil (blows back or reduces)...25841
S-12 Oil pressure drops...25842
S-13 Oil level rises (Water, fuel in oil)...25843
S-14 Coolant temperature rises too high (Overheating)...25844
S-15 Abnormal noise is made...25845
S-16 Vibration is excessive...25846
50 Disassembly and assembly...25848
General information on disassembly and assembly...25849
How to read this manual...25849
Coating materials list...25851
Special tools list...25854
Engine and cooling system...25857
Removal and installation of fuel supply pump assembly...25857
Removal and installation of fuel injector assembly...25859
Removal and installation of cylinder head assembly...25864
Removal and installation of engine hood...25873
Removal and installation of radiator assembly...25875
Removal and installation of air aftercooler...25877
Removal and installation of hydraulic oil cooler assembly...25879
Removal and installation of engine assembly...25881
Removal and installation of cooling fan and fan motor assembly...25886
Removal and installation of fuel tank assembly...25889
Power train...25893
Removal and installation of torque converter and transmission assembly...25893
Disassembly and assembly of torque converter assembly (Standard specification)...25899
Disassembly and assembly of torque converter assembly (Lockup specification)...25903
Disassembly and assembly of transmission assembly...25909
Disassembly and assembly of transmission clutch pack assembly...25924
Disassembly and assembly of parking brake assembly...25940
Removal and installation of front axle assembly...25945
Removal and installation of rear axle assembly...25947
Disassembly and assembly of axle housing...25950
Disassembly and assembly of differential assembly...25959
Steering system...25973
Removal and installation of steering demand valve assembly...25973
Brake system...25977
Removal and installation of parking brake discs and plates...25977
Undercarriage and frame...25981
Removal and installation of center hinge pin...25981
Removal and installation of counterweight...25989
Hydraulic system...25993
Removal and installation of work equipment control valve assembly...25993
Removal and installation of power train pump and work equipment pump assembly...25995
Removal and installation of steering pump and cooling fan pump assembly...25996
Removal and installation of hydraulic tank assembly...25997
Work equipment...26001
Removal and installation of work equipment assembly...26001
Disassembly and assembly of hydraulic cylinder assembly...26005
Cab and its attachments...26015
Removal and installation of operator's cab and floor frame assembly...26015
Removal and installation of operator's cab glass (stuck glass)...26018
Removal and installation of air conditioner unit assembly...26026
Electrical system...26031
Removal and installation of engine controller assembly...26031
90 Diagrams and drawings...26032
Hydraulic diagrams and drawings...26032
Hydraulic diagrams and drawings...26033
Power train hydraulic circuit diagram...26033
Hydraulic circuit diagram...26036
Electrical diagrams and drawings...26040
Electrical circuit diagram (1/2)...26040
Electrical circuit diagram (2/2)...26041
Connector arrangement diagram...26042
VEBM440102 - Wheel Loader WA380-6 Shop Manual...26043
Cover...26043
00 Index and foreword...26045
Index...26045
Composition of shop manual...26046
Table of contents...26048
Foreword and general information...26063
Safety notice...26064
How to read the shop manual...26069
Explanation of terms for maintenance standard...26071
Handling of electric equipment and hydraulic component...26073
Handling of connectors newly used for engines...26082
How to read electric wire code...26085
Precautions when carrying out operation...26088
Method of disassembling and connecting push-pull type coupler...26091
Standard tightening torque table...26094
Conversion table...26098
01 Specification...26103
Specification and technical data...26103
Specification dimension drawing...26105
Specifications...26106
Weight table...26110
Table of fuel, coolant and lubricants...26112
10 Structure, function and maintenance standard...26115
Engine and cooling system...26115
Engine mount and transmission mount...26116
Cooling system...26117
Cooling fan pump...26118
Cooling fan motor...26126
Power train...26133
Power train...26135
Power train system diagram...26136
Drive shaft...26138
Power train piping diagram...26139
Torque converter...26140
Transmission...26148
Flow control valve...26165
Valve assembly...26166
ECMV...26167
Main relief valve and torque converter relief valve...26174
Axle...26176
Differential...26178
Limited slip differential...26183
Final drive...26190
Steering system...26193
Steering piping diagram...26195
Steering column...26196
Steering pump...26197
Steering valve...26209
Orbit-roll valve...26224
Stop valve...26232
Steering relief valve...26233
Steering cylinder...26234
Emergency steering motor...26236
Emergency steering pump...26237
Joystick steering lever linkage...26238
Steering electric lever...26239
Joystick EPC valve...26240
Brake system...26241
Brake piping diagram...26242
Charge valve...26243
Brake valve...26250
Accumulator (for brake)...26255
Brake...26256
Parking brake control...26261
Parking brake...26262
Parking brake solenoid valve...26264
Emergency parking brake release valve...26266
Undercarriage and frame...26267
Axle mount and center hinge pin...26268
Tires...26272
Hydraulic system, Part 1...26273
Hydraulic piping diagram...26274
Work equipment control lever linkage...26277
Hydraulic tank...26280
Power train pump...26282
Work equipment pump...26283
Work equipment control valve...26294
CLSS...26308
Each function and operation of each valve...26312
Hydraulic system, Part 2...26335
PPC valve...26336
Stabilizer valve...26342
Accumulator (for PPC circuit)...26348
Accumulator (for ECSS)...26349
Work equipment PPC cut-off solenoid valve...26350
Work equipment...26353
Work equipment linkage...26354
Bucket...26356
Bucket positioner and boom kick-out...26357
Work equipment cylinder...26363
Cab and its attachments...26365
Cab...26367
Air conditioner...26368
Electrical system, Part 1...26385
Machine monitor system...26386
Machine monitor...26390
Electrical system, Part 2...26423
Electrical system (Transmission controller system)...26424
Transmission controller...26470
Electrical system (Work equipment controller system)...26472
Work equipment controller...26478
Electrical system, Part 3...26481
Electric transmission control...26484
Kickdown switch and hold switch...26488
Load meter cancel switch and load meter subtotal switch...26488
Multi-function knob...26489
Joystick steering knob...26490
KOMTRAX terminal system...26492
Engine starting circuit...26494
Engine stopping circuit...26496
Preheating circuit...26497
Engine power mode selector circuit...26498
Engine output derating function...26499
Automatic warm-up function...26499
Parking brake circuit...26500
Sensor...26502
Central Lubrication System (CLS)...26511
Function of central lubrication system (CLS)...26512
Auto-grease pump...26512
Changing the lubrication interval times...26513
Operating the central lubrication system...26514
Display and control unit...26515
LED-display...26515
Push buttons...26515
Three-digit LED display...26516
Check central lubrication system, fill up grease...26517
20 Standard value table...26519
Standard service value table...26519
Standard service value table for engine...26520
Standard service value table for chassis...26521
30 Testing and adjusting...26529
Testing and adjusting, Part 1...26529
Tools for testing, adjusting, and troubleshooting...26531
Testing engine speed...26538
Testing exhaust gas color...26540
Adjusting valve clearance...26542
Testing compression pressure...26544
Testing blow-by pressure...26547
Testing engine oil pressure...26548
Testing intake air (boost) pressure...26549
Handling fuel system equipment...26550
Releasing residual pressure in fuel system...26550
Testing fuel pressure...26551
Testing fuel delivery, return and leak amount...26553
Bleeding air from fuel circuit...26556
Testing leakage in fuel system...26557
Handling reduced cylinder mode operation...26558
Handling no-injection cranking operation...26558
Handling controller voltage circuit...26559
Testing and adjusting air conditioner compressor belt tension...26560
Replacing alternator belt...26561
Adjusting transmission speed sensor...26562
Testing directional lever...26563
Testing and adjusting power train oil pressure...26564
Procedure for flushing torque converter and transmission hydraulic circuit...26579
Method of moving machine when transmission valve is broken...26580
Testing and adjusting steering stop valve...26582
Testing and adjusting steering wheel...26584
Testing and adjusting steering oil pressure...26586
Bleeding air from steering circuit...26589
Testing and adjusting, Part 2...26591
Testing hydraulic drive fan...26593
Bleeding air from hydraulic drive fan circuit...26595
Testing brake pedal...26597
Testing brake performance...26598
Testing and adjusting accumulator charge pressure...26599
Testing wheel brake oil pressure...26600
Testing wear of wheel brake disc...26602
Bleeding air from wheel brake circuit...26603
Releasing residual pressure in brake accumulator circuit...26604
Testing parking brake performance...26605
Testing parking brake oil pressure...26606
Testing wear of parking brake disc...26608
Method of releasing parking brake manually...26609
Testing and adjusting work equipment control lever...26610
Testing and adjusting work equipment PPC oil pressure...26611
Testing and adjusting work equipment oil pressure...26614
Bleeding air from work equipment circuit...26618
Releasing residual pressure in work equipment circuit...26619
Procedure for testing of nitrogen gas pressure and charging of nitrogen gas of ECSS (Electronically Controlled Suspension System) accumulator...26620
Testing and adjusting bucket positioner...26626
Testing and adjusting boom kick-out...26628
Checking proximity switch operation pilot lamp...26629
Procedure for testing diodes...26630
Preparation work for troubleshooting for electric system...26631
How to start operation of KOMTRAX terminal...26636
Lamp display of KOMTRAX terminal...26641
Testing and adjusting, Part 3...26645
Adjusting replaced, reassembled or added sensor, controller, etc. with machine monitor...26647
Special functions of machine monitor (EMMS)...26649
Pm-clinic inspection table...26718
40 Troubleshooting...26721
Failure code table and fuse locations...26721
Failure code table...26722
Fuse locations...26732
General information on troubleshooting...26735
Points to remember when troubleshooting...26736
Sequence of events in troubleshooting...26737
Testing before troubleshooting...26738
Classification and procedures of troubleshooting...26739
Information contained in troubleshooting table...26742
Connection table for connector pin numbers...26744
T- branch box and T- branch adapter table...26780
“ * ” Shows not T-adapter but socket...26782
Troubleshooting by failure code (Display of code), Part 1...26783
Failure code [1500L0] (TORQFLOW transmission: Double meshing)...26785
Failure code [15SAL1] (ECMV F clutch: When command current is OFF, fill signal is ON)...26786
Failure code [15SALH] (ECMV F clutch: When command current is ON, fill signal is OFF)...26788
Failure code [15SBL1] (ECMV R clutch: When command current is OFF, fill signal is ON)...26790
Failure code [15SBLH] (ECMV R clutch: When command current is ON, fill signal is OFF)...26792
Failure code [15SEL1] (ECMV 1st clutch: When command current is OFF, fill signal is ON)...26794
Failure code [15SELH] (ECMV 1st clutch: When command current is ON, fill signal is OFF)...26796
Failure code [15SFL1] (ECMV 2nd clutch: When command current is OFF, fill signal is ON)...26798
Failure code [15SFLH] (ECMV 2nd clutch: When command current is ON, fill signal is OFF)...26800
Failure code [15SGL1] (ECMV 3rd clutch: When command current is OFF, fill signal is ON)...26802
Failure code [15SGLH] (ECMV 3rd clutch: When command current is ON, fill signal is OFF)...26804
Failure code [15SHL1] (ECMV 4th clutch: When command current is OFF, fill signal is ON)...26806
Failure code [15SHLH] (ECMV 4th clutch: When command current is ON, fill signal is OFF)...26808
Failure code [2F00MA] (Parking brake: Malfunction)...26810
Failure code [2G43ZG] (Accumulator: Low oil pressure)...26812
Failure code [44K0L4] (Bucket positioner: ON/OFF signals disagree)...26814
Troubleshooting by failure code (Display of code), Part 2...26817
Failure code [AA1ANX] (Air cleaner: Clogging)...26820
Failure code [AB00L6] (Alternator: Signal disagrees with operating state of engine)...26822
Failure code [AB00MA] (Alternator: Malfunction)...26824
Failure code [B@BAZG] (Rotation derating by low engine oil pressure)...26826
Failure code [B@BAZK] (Engine oil: Low level)...26827
Failure code [B@BCNS] (Coolant: Overheating)...26828
Failure code [B@BCZK] (Coolant: Low level)...26830
Failure code [B@BEBF] (Water in fuel error)...26832
Failure code [B@C7NS] (Brake oil: Overheating)...26834
Failure code [b@CENS] (Torque converter oil: Overheating)...26836
Failure code [B@CENS] (Torque converter oil: Overheating)...26838
Failure code [B@HANS] (Hydraulic oil: Overheating)...26840
Failure code [CA111] (Abnormality in engine controller)...26842
Failure code [CA115] (Engine Ne or Bkup speed sensor error)...26843
Failure code [CA122] (Charge pressure sensor high error)...26844
Failure code [CA123] (Charge pressure sensor low error)...26846
Failure code [CA131] (Throttle sensor high error)...26848
Failure code [CA132] (Throttle sensor low error)...26850
Failure code [CA144] (Coolant sensor high error)...26852
Failure code [CA145] (Coolant sensor low error)...26854
Failure code [CA153] (Charge temperature sensor high error)...26856
Failure code [CA154] (Charge temperature sensor low error)...26858
Failure code [CA155] (Derating of speed by abnormally high charge temperature)...26860
Failure code [CA187] (Sensor power supply 2 low error)...26862
Failure code [CA221] (Atmospheric pressure sensor high error)...26864
Failure code [CA222] (Atmospheric sensor low error)...26866
Failure code [CA227] (Sensor power supply 2 high error)...26868
Failure code [CA234] (Engine overspeed)...26869
Failure code [CA238] (Ne speed sensor power supply error)...26870
Troubleshooting by failure code (Display of code), Part 3...26871
Failure code [CA271] (IMV/PCV1 Short circuit)...26873
Failure code [CA272] (IMV/PCV1 Disconnection)...26874
Failure code [CA322] (Injector #1 open/short error)...26876
Failure code [CA323] (Injector #5 open/short error)...26878
Failure code [CA324] (Injector #3 open/short error)...26880
Failure code [CA325] (Injector #6 open/short error)...26882
Failure code [CA331] (Injector #2 open/short error)...26884
Failure code [CA332] (Injector #4 open/short error)...26886
Failure code [CA342] (Calibration code inconsistency)...26888
Failure code [CA351] (Injectors drive circuit error)...26890
Failure code [CA352] (Sensor power supply 1 low error)...26892
Failure code [CA386] (Sensor power supply 1 high error)...26894
Failure code [CA428] (Abnormally high level in water sensor)...26895
Failure code [CA429] (Abnormally low level in water sensor)...26896
Failure code [CA431] (Idle validation switch error)...26897
Failure code [CA432] (Idle validation action error)...26900
Failure code [CA435] (Engine oil pressure switch error)...26902
Failure code [CA441] (Battery voltage low error)...26903
Failure code [CA442] (Battery voltage high error)...26906
Failure code [CA449] Common rail pressure high error 2...26908
Failure code [CA451] (Common rail pressure sensor high error)...26910
Failure code [CA452] (Common rail pressure sensor low error)...26912
Failure code [CA488] (Derating of torque by abnormally high charge temperature)...26914
Failure code [CA553] (Common rail pressure high error 1)...26915
Failure code [CA559] (Supply pump pressure very low error)...26916
Failure code [CA689] (Engine Ne speed sensor error)...26918
Failure code [CA731] (Engine Bkup speed sensor phase error)...26920
Failure code [CA757] (All continuous data lost error)...26921
Failure code [CA778] (Engine Bkup speed sensor error)...26924
Failure code [CA1633] (KOMNET datalink timeout error)...26926
Failure code [CA2185] (Throttle sensor power supply voltage high error)...26928
Failure code [CA2186] (Throttle sensor power supply voltage low error)...26929
Troubleshooting by failure code (Display of code), Part 4...26931
Failure code [CA2249] (Supply pump pressure very low error 2)...26933
Failure code [CA2311] (Abnormality in IMV solenoid)...26934
Failure code [CA2555] (Intake heater relay disconnection error)...26936
Failure code [CA2556] (Intake heater relay short circuit error)...26938
Failure code [D150KA] (Emergency steering relay: Disconnection)...26940
Failure code [D150KB] (Emergency steering relay: Short circuit)...26942
Failure code [D150KY] (Emergency steering relay: Short circuit with power supply line)...26944
Failure code [D160KA] (Backup lamp relay: Disconnection)...26946
Failure code [D160KB] (Backup lamp relay: Short circuit)...26948
Failure code [D191KA] (Joystick steering neutral safety relay: Disconnection)...26950
Failure code [D191KB] (Joystick steering neutral safety relay: Short circuit)...26952
Failure code [D191KY] (Joystick steering neutral safety relay: Short circuit with power supply line)...26954
Failure code [D192KA] (ECSS solenoid: Disconnection)...26956
Failure code [D192KB] (ECSS solenoid: Short circuit)...26957
Failure code [D192KY] (ECSS solenoid: Short circuit with power supply line)...26958
Failure code [D193KA] (Joystick steering solenoid cut relay: Disconnection)...26960
Failure code [D193KB] (Joystick steering solenoid cut relay: Short circuit)...26962
Failure code [D193KY] (Joystick steering solenoid cut relay: Short circuit with power supply line)...26964
Failure code [D5ZHKA] (Terminal C signal: Disconnection)...26967
Failure code [D5ZHKB] (Terminal C signal: Short circuit)...26971
Failure code [D5ZHKZ] (Terminal C signal: Disconnection or short circuit)...26974
Failure code [D5ZHL6] (Terminal C signal: Signal does not match engine running or stopped state)...26979
Failure code [DA80L4] (Auto grease controller: ON/OFF signals disagree)...26982
Failure code [DAF3KK] (Machine monitor: Low source voltage (input)...26984
Failure code [DAF5KP] (Machine monitor: Low output voltage)...26986
Failure code [DAFRKR] (CAN communication with machine monitor: Defective communication (Abnormality in target component system)...26990
Troubleshooting by failure code (Display of code), Part 5...26993
Failure code [DAQ0KK] (Transmission controller: Low source voltage)...26996
Failure code [DAQ0KT] (Transmission controller: Abnormality in controller)...26998
Failure code [DAQ2KK] (Transmission controller load power supply line: Low source voltage (input)...26999
Failure code [DAQ9KQ] (Transmission controller model selection: Disagreement of model selection signals)...27001
Failure code [DAQRKR] (CAN communication with transmission controller: Defective communication (Abnormality in target component system)...27002
Failure code [DAQRMA] (Transmission controller option setting: Malfunction)...27005
Failure code [DB2RKR] (CAN communication with engine controller: Defective communication (Abnormality in target component system)...27006
Failure code [DB90KK] Work equipment controller: Low source voltage (input)...27008
Failure code [DB90KT] Work equipment controller: Abnormality in controller...27010
Failure code [DB92KK] Work equipment controller load power supply line: Low source voltage (input)...27011
Failure code [DB95KX] Work equipment controller power supply output: Out of input signal range...27013
Failure code [DB99KQ] (Work equipment controller model selection: Disagreement in model selection signals)...27016
Failure code [DB9RKR] CAN communication with work equipment controller: Defective communication (Abnormality in target component system)...27017
Failure code [DB9RMA] (Work equipment controller option setting: Malfunction)...27019
Failure code [DB9RMC] (CAN communication with transmission controller, engine controller and machine monitor: Defective operation)...27020
Failure code [DD15LD] t switch (Panel switch 1): Switch is kept pressed for long time...27024
Failure code [DD16LD] U switch (Panel switch 2): Switch is kept pressed for long time...27026
Failure code [DD17LD] < switch (Panel switch 3): Switch is kept pressed for long time...27028
Failure code [DD18LD] > switch (Panel switch 4): Switch is kept pressed for long time...27030
Failure code [DD1ALD] Remote positioner raise/lower set switch (raise): Switch is kept pressed for long time...27032
Failure code [DD1BLD] Remote positioner raise/lower set switch (lower): Switch is kept pressed for long time...27034
Failure code [DD1CLD] Load meter subtotal switch: Switch is kept pressed for long time...27036
Failure code [DD1FLD] Load meter mode selector switch (A/B): Switch is kept pressed for long time...27038
Failure code [DD1GLD] Load meter mode selector switch (+/–): Switch is kept pressed for long time...27040
Failure code [DD1HLD] (Load meter display selector switch: Switch is kept pressed for long time)...27042
Failure code [DD1NLD] (Fan reverse switch: Switch is kept pressed for long time)...27044
Failure code [DD1NL4] (Fan automatic reverse switch: Switch is kept pressed for long time)...27046
Failure code [DDB6L4] (Parking brake switch (Neutralizer): ON/OFF signals disagree)...27048
Troubleshooting by failure code (Display of code), Part 6...27051
Failure code [DDE5MA] (Emergency steering drive switch: Malfunction)...27054
Failure code [DDK3KA] (Right FNR switch: Disconnection)...27056
Failure code [DDK4KA] (Joystick steering FNR switch: Disconnection)...27059
Failure code [DDK5L4] (Joystick steering shift-up/down switch: ON/OFF signals disagree)...27062
Failure code [DDK6KA] (FNR lever switch: Disconnection)...27064
Failure code [DDK6KB] (FNR lever switch: Short circuit)...27068
Failure code [DDS5KA] (Steering pressure switch: Disconnected)...27070
Failure code [DDS5KB] (Steering pressure switch: Grounded)...27072
Failure code [DDT0L4] (Shift mode selector switch: ON/OFF signals disagree)...27074
Failure code [DDT4LD] (Transmission cut-off set switch: Switch is kept pressed for long time)...27076
Failure code [DDW9LD] (Kick-down switch: Switch is kept pressed for long time)...27078
Failure code [DDWLLD] (Hold switch: Switch is kept pressed for long time)...27080
Failure code [DDY0LD] (Load meter cancel switch: Switch is kept pressed for long time)...27082
Failure code [DF10KA] (Transmission shift lever switch: Disconnected)...27084
Failure code [DF10KB] (Transmission shift lever switch: Short circuit)...27088
Failure code [DGF1KA] (Transmission oil temperature sensor: Disconnected)...27090
Failure code [DGF1KB] (Transmission oil temperature sensor: Short circuit)...27092
Failure code [DGH2KX] (Hydraulic oil temperature sensor: Out of input signal range)...27094
Failure code [DGR2KA] (Rear brake oil temperature sensor: Disconnected)...27096
Failure code [DGR2KX] (Rear brake oil temperature sensor: Out of input signal range)...27098
Failure code [DGT1KX] (Torque converter oil temperature sensor: Out of input signal range)...27100
Failure code [DH21KA] (Loader pump pressure sensor: Disconnection)...27102
Failure code [DH21KB] (Loader pump pressure sensor: Power supply line short)...27104
Troubleshooting by failure code (Display of code), Part 7...27107
Failure code [DHPCKX] (Lift arm cylinder bottom pressure sensor: Out of input signal range)...27110
Failure code [DHPDKX] (Lift arm cylinder head pressure sensor: Out of input signal range)...27112
Failure code [DHT1KX] (Transmission cut-off pressure sensor: Out of input signal range)...27114
Failure code [DHT8KA] (Steering pump pressure sensor: Disconnection)...27116
Failure code [DHT8KB] (Steering pump pressure sensor: Short circuit)...27118
Failure code [DK59KA] (Lift arm EPC lever potentiometer (Main): Disconnection)...27120
Failure code [DK59KY] (Lift arm EPC lever potentiometer (Main): Short circuit with power supply line)...27123
Failure code [DK59L8] (Lift arm EPC lever potentiometer (Main): Analog signals disagree)...27126
Failure code [DK5AKA] (Lift arm EPC lever potentiometer (Sub): Disconnection)...27129
Failure code [DK5AKY] (Lift arm EPC lever potentiometer (Sub): Short circuit with power supply line)...27132
Failure code [DK5BKA] (Bucket EPC lever potentiometer (Main): Disconnection)...27135
Failure code [DK5BKY] (Bucket EPC lever potentiometer (Main): Short circuit with power supply line)...27138
Failure code [DK5BL8] (Bucket EPC lever potentiometer (Main): Analog signals disagree)...27141
Failure code [DK5CKA] (Bucket EPC lever potentiometer (Sub): Disconnection)...27144
Failure code [DK5CKY] (Bucket EPC lever potentiometer (Sub): Short circuit with power supply line)...27147
Troubleshooting by failure code (Display of code), Part 8...27151
Failure code [DK5FKA] (Joystick steering EPC lever potentiometer (Main): Disconnection)...27153
Failure code [DK5FKY] (Joystick steering EPC lever potentiometer (Main): Short circuit with power supply line)...27156
Failure code [DK5GKA] (Joystick steering EPC lever potentiometer (Sub): Disconnection)...27158
Failure code [DK5GKY] (Joystick steering EPC lever potentiometer (Sub): Short circuit with power supply line)...27162
Failure code [DK5FL8] (Joystick steering EPC lever potentiometer (Main): Analog signals disagree)...27164
Failure code [DKA0KA] (Lift arm angle sensor: Disconnection)...27168
Failure code [DKA0KY] (Lift arm angle sensor: Short circuit with power supply line)...27170
Failure code [DKA0L0] (Lift arm angle sensor: Dislocation of sensor)...27172
Failure code [DLT3KA] (Transmission output shaft speed sensor: Disconnection)...27174
Failure code [DLT3LC] (Transmission output shaft speed sensor: Out of input signal range)...27176
Failure code [DT20KB] (Transmission cut-off indicator lamp: Short circuit)...27178
Failure code [DUM1KB] (Remote positioner raise set indicator lamp: Short circuit)...27180
Failure code [DUM2KB] (Remote positioner lower set indicator lamp: Short circuit)...27182
Failure code [DV00KB] (Alarm buzzer: Short circuit)...27184
Failure code [DW4PKA] (Lift arm raise EPC solenoid: Disconnection)...27186
Failure code [DW4PKB] (Lift arm raise EPC solenoid: Short circuit)...27188
Failure code [DW4PKY] (Lift arm raise EPC solenoid: Short circuit with power supply line)...27190
Failure code [DW4QKA] (Lift arm lower EPC solenoid: Disconnection)...27192
Failure code [DW4QKB] (Lift arm lower EPC solenoid: Short circuit)...27193
Failure code [DW4QKY] (Lift arm lower EPC solenoid: Short circuit with power supply line)...27194
Failure code [DW4RKA] (Bucket tilt EPC solenoid: Disconnection)...27196
Failure code [DW4RKB] (Bucket tilt EPC solenoid: Short circuit)...27197
Failure code [DW4RKY] (Bucket tilt EPC solenoid: Short circuit with power supply line)...27198
Troubleshooting by failure code (Display of code), Part 9...27201
Failure code [DW4SKA] (Bucket dump EPC solenoid: Disconnection)...27203
Failure code [DW4SKB] (Bucket dump EPC solenoid: Short circuit)...27204
Failure code [DW4SKY] (Bucket dump EPC solenoid: Short circuit with power supply line)...27206
Failure code [DW7BKA] (Fan reverse solenoid: Disconnection)...27208
Failure code [DW7BKB] (Fan reverse solenoid: Short circuit)...27209
Failure code [DW7BKY] (Fan reverse solenoid: Short circuit with power supply line)...27210
Failure code [DWM1KA] (Work equipment neutral lock solenoid: Disconnection)...27212
Failure code [DWM1KB] (Work equipment neutral lock solenoid: Short circuit)...27214
Failure code [DWM1KY] (Work equipment neutral lock solenoid: Short circuit with power supply line)...27216
Failure code [DWN6KA] (Lift arm raise magnet detent solenoid: Disconnection)...27218
Failure code [DWN6KB] (Lift arm raise magnet detent solenoid: Short circuit)...27220
Failure code [DWN6KY] (Lift arm raise magnet detent solenoid: Short circuit with power supply line)...27222
Failure code [DWN7KA] (Lift arm float magnet detent solenoid: Disconnection)...27224
Failure code [DWN7KB] (Lift arm float magnet detent solenoid: Short circuit)...27226
Failure code [DWN7KY] (Lift arm float magnet detent solenoid: Short circuit with power supply line)...27228
Failure code [DWN8KA] (Bucket tilt magnet detent solenoid: Disconnection)...27230
Failure code [DWN8KB] (Bucket tilt magnet detent solenoid: Short circuit)...27232
Failure code [DWN8KY] (Bucket tilt magnet detent solenoid: Shorted with the power source)...27234
Failure code [DX16KA] (Fan pump EPC solenoid: Disconnection)...27236
Failure code [DX16KB] (Fan pump EPC solenoid: Short circuit)...27237
Failure code [DX16KY] (Fan pump EPC solenoid: Short circuit with power supply line)...27238
Failure code [DXH1KA] (Lockup ECMV solenoid: Disconnection)...27240
Failure code [DXH1KB] (Lockup ECMV solenoid: Short circuit)...27242
Failure code [DXH1KY] (Lockup ECMV solenoid: Short circuit with power supply line)...27244
Failure code [DXH4KA] (1st clutch ECMV solenoid: Disconnection)...27246
Failure code [DXH4KB] (1st clutch ECMV solenoid: Short circuit)...27248
Failure code [DXH4KY] (1st clutch ECMV solenoid: Short circuit with power supply line)...27250
Troubleshooting by failure code (Display of code), Part 10...27253
Failure code [DXH5KA] (2nd clutch ECMV solenoid: Disconnection)...27256
Failure code [DXH5KB] (2nd clutch ECMV solenoid: Short circuit)...27258
Failure code [DXH5KY] (2nd clutch ECMV solenoid: Short circuit with power supply line)...27260
Failure code [DXH6KA] (3rd clutch ECMV solenoid: Disconnection)...27262
Failure code [DXH6KB] (3rd clutch ECMV solenoid: Short circuit)...27264
Failure code [DXH6KY] (3rd clutch ECMV solenoid: Short circuit with power supply line)...27266
Failure code [DXH7KA] (R clutch ECMV solenoid: Disconnection)...27268
Failure code [DXH7KB] (R clutch ECMV solenoid: Short circuit)...27270
Failure code [DXH7KY] (R clutch ECMV solenoid: Short circuit with power supply line)...27272
Failure code [DXH8KA] (F clutch ECMV solenoid: Disconnection)...27274
Failure code [DXH8KB] (F clutch ECMV solenoid: Short circuit)...27276
Failure code [DXH8KY] (F clutch ECMV solenoid: Short circuit with power supply line)...27278
Failure code [DXHHKA] (4th clutch ECMV solenoid: Disconnection)...27280
Failure code [DXHHKB] (4th clutch ECMV solenoid: Short circuit)...27282
Failure code [DXHHKY] (4th clutch ECMV solenoid: Short circuit with power supply line)...27284
Failure code [DXHLKA] (Joystick steering right EPC solenoid: Disconnection)...27286
Failure code [DXHLKB] (Joystick steering right EPC solenoid: Short circuit)...27288
Failure code [DXHLKY] (Joystick steering right EPC solenoid: Short circuit with power supply line)...27290
Failure code [DXHMKA] (Joystick steering left EPC solenoid: Disconnection)...27292
Failure code [DXHMKB] (Joystick steering left EPC solenoid: Short circuit)...27294
Failure code [DXHMKY] (Joystick steering left EPC solenoid: Short circuit with power supply line)...27296
Failure code [DY30MA] Motor-driven emergency steering pump failure (During operation of machine)...27298
Failure code [DY30MC] Motor-driven emergency steering pump failure (Malfunction in manual mode)...27301
Troubleshooting of electrical system (E-mode)...27305
Installing positions of fuses...27307
Information in troubleshooting table...27310
E-1 Engine does not start...27311
E-2 Wiper does not operate...27318
E-3 Windshield washer does not operate...27322
E-4 Headlamp, clearance lamp, tail lamp, and license lamp do not light up or go off...27325
E-5 Working lamp does not light up or go off...27333
E-6 Turn signal lamp and hazard lamp do not light up or go off...27338
E-7 Brake lamp does not light or it keeps lighting up...27344
E-8 Backup lamp does not light or it keeps lighting up...27346
E-9 Backup buzzer does not sound or it keeps sounding...27348
E-10 Horn does not sound or it keeps sounding...27350
E-11 Alarm buzzer does not sound or it keeps sounding...27352
E-12 Air conditioner does not operate or stop...27354
E-13 The KOMTRAX system does not work properly...27357
E-14 When kick-down switch is turned ON, kick-down operation does not start...27360
E-15 When hold switch is pressed, holding operation does not start...27362
E-16 Transmission is kept in neutral, or brake drags when directional lever is operated while parking brake is applied...27364
E-17 Transmission cut-off mode cannot be set or reset...27366
E-18 Transmission cut-off set cannot be reset...27368
E-19 FNR switch mode cannot be set or reset...27370
E-20 Fan reverse function cannot be used or reset...27372
E-21 Discharge from loader pump does not rise from minimum level...27374
E-22 ECSS function cannot be used or reset...27376
E-23 When parking brake is turned ON, parking brake indicator lamp does not light up...27378
E-24 When emergency brake operates, brake oil pressure caution lamp does not operate...27382
E-25 Air cleaner clogging indicator lamp does not light up...27384
E-26 Radiator coolant level caution lamp does not light up...27386
E-27 Hydraulic oil temperature gauge does not rise and hydraulic oil temperature caution lamp does not light up...27387
E-28 Torque converter oil temperature gauge does not rise and torque converter oil temperature caution lamp does not light up...27388
E-29 Steering oil pressure caution lamp does not light up...27390
E-30 Abnormality in t switch (panel switch 1) input...27392
E-31 Abnormality in U switch (panel switch 2) input...27394
E-32 Abnormality in < switch (panel switch 3) input...27396
E-33 Abnormality in > switch (panel switch 4) input...27398
Troubleshooting of hydraulic and mechanical system (H-mode)...27401
Method of using troubleshooting chart...27403
Table of failure modes and causes...27406
H-1 The machine does not start...27410
H-2 Torque converter lockup is not switched off (engine stalls) [Machine with lockup clutch (if equipped)]...27412
H-3 Torque converter lockup is not switched on [Machine with lockup clutch (if equipped)]...27413
H-4 The travel speed is slow, the thrusting force is weak, the uphill traveling power is weak, and the gear is not shifted...27414
H-5 Shocks are large at the times of starting and shifting gear...27416
H-6 Time lag is large at the times of starting and shifting gear...27418
H-7 The torque converter oil temperature is high...27420
H-8 Steering does not turn...27421
H-9 Steering does not turn [Machine with joystick steering (if equipped)]...27422
H-10 Steering response is low...27423
H-11 Turning, response of steering is poor [machine with joystick steering (if equipped)]...27424
H-12 Steering is heavy...27425
H-13 When machine turns, it shakes or makes large shocks...27426
H-14 When machine turns, it shakes or makes large shocks [machine with joystick steering (if equipped)]...27427
H-15 The wheel brake does not work or does not work well...27428
H-16 The wheel brake is not released or it drags...27429
H-17 The parking brake does not work or does not work well...27430
H-18 The parking brake is not released or it drags (including emergency release system)...27431
H-19 Lift arm does not rise...27432
H-20 Lift arm speed is low or rising force of lift arm is insufficient...27433
H-21 When rising, the lift arm comes to move slowly at specific height...27434
H-22 The lift arm cylinder cannot hold down the bucket (Bucket floats)...27434
H-23 Hydraulic drifts of the lift arm is large...27434
H-24 The lift arm wobbles during operation...27434
H-25 Bucket does not tilt back...27435
H-26 Bucket speed is low or tilting back force is insufficient...27436
H-27 The bucket comes to operate slowly in the midst of tilting-back...27437
H-28 The bucket cylinder cannot hold down the bucket...27437
H-29 Hydraulic drifts of the bucket is large...27437
H-30 The bucket wobbles during travel with cargo (The work equipment valve is set to “HOLD”)...27437
H-31 Lift arm and bucket control levers do not move smoothly and are heavy...27438
H-32 During operation of the machine, engine speed lowers remarkably or engine stalls...27439
H-33 Large shock is made when work equipment starts and stops...27439
H-34 When work equipment circuit is relieved singly, other work equipment moves...27439
H-35 ECSS does not operate, and pitching, bouncing occur...27440
Troubleshooting of engine (S-mode)...27441
Method of using troubleshooting charts...27443
S-1 Engine does not start easily...27446
S-2 Engine does not start...27447
S-3 Engine does not pick up smoothly...27450
S-4 Engine stops during operations...27451
S-5 Engine does not rotate smoothly...27452
S-6 Engine lacks output (or lacks power)...27453
S-7 Exhaust smoke is black (Incomplete combustion)...27454
S-8 Oil consumption is excessive (or exhaust smoke is blue)...27455
S-9 Engine oil becomes contaminated quickly...27456
S-10 Fuel consumption is excessive...27457
S-11 Coolant contains oil (blows back or reduces)...27458
S-12 Oil pressure drops...27459
S-13 Oil level rises (Water, fuel in oil)...27460
S-14 Coolant temperature rises too high (Overheating)...27461
S-15 Abnormal noise is made...27462
S-16 Vibration is excessive...27463
Troubleshooting of Central Lubrication System (CLS)...27465
Trouble...27466
Troubleshooting FPS...27467
Troubleshooting...27468
Pump Faults...27468
Replace pump element...27470
Check power supply...27470
Changing the control unit:...27470
Troubleshooting – grease system faults...27471
Venting of the system...27472
General assembly advice...27473
50 Disassembly and assembly...27475
General information on disassembly and assembly...27475
How to read this manual...27476
Coating materials list...27478
Special tools list...27481
Sketches of special tools...27484
Engine and cooling system...27491
Removal and installation of fuel supply pump assembly...27492
Removal and installation of fuel injector assembly...27495
Removal and installation of cylinder head assembly...27502
Removal and installation of engine hood assembly...27513
Removal and installation of radiator assembly...27515
Removal and installation of air aftercooler...27517
Removal and installation of hydraulic oil cooler assembly...27519
Removal and installation of engine assembly...27521
Removal and installation of engine front oil seal assembly...27526
Removal and installation of engine rear oil seal assembly...27529
Removal and installation of cooling fan and fan motor assembly...27532
Removal and installation of fuel tank assembly...27535
Power train...27537
Removal and installation of torque converter and transmission assembly...27538
Disassembly and assembly of torque converter assembly (Standard specification)...27544
Disassembly and assembly of torque converter assembly (Lockup specification)...27548
Disassembly and assembly of transmission assembly...27554
Disassembly and assembly of transmission clutch pack assembly...27570
Disassembly and assembly of parking brake assembly...27588
Removal and installation of front axle assembly...27597
Removal and installation of rear axle assembly...27599
Disassembly and assembly of axle housing...27602
Disassembly and assembly of differential assembly...27611
Steering system...27631
Removal and installation of steering valve assembly...27632
Brake system...27635
Removal and installation of parking brake discs and plates...27636
Undercarriage and frame...27639
Removal and installation of center hinge pin...27640
Removal and installation of counterweight...27648
Hydraulic system...27651
Removal and installation of work equipment control valve assembly...27652
Removal and installation of power train pump and work equipment pump assembly...27655
Removal and installation of steering pump and cooling fan pump assembly...27656
Removal and installation of hydraulic tank assembly...27657
Work equipment...27661
Removal and installation of work equipment assembly...27662
Disassembly and assembly of hydraulic cylinder assembly...27666
Cab and its attachments...27675
Removal and installation of operator's cab and floor frame assembly...27676
Removal and installation of operator's cab glass (stuck glass)...27679
Disassembly and assembly of operator's seat assembly (Standard specification)...27687
Disassembly and assembly of operator's seat assembly (Manufactured by GRAMMER)...27696
Removal and installation of air conditioner unit assembly...27729
Electrical system...27733
Removal and installation of engine controller assembly...27734
90 Diagrams and drawings...27735
Hydraulic diagrams and drawings...27735
Power train hydraulic circuit diagram...27736
Automatic greasing circuit diagram...27738
Electrical diagrams and drawings...27743
Connector list and tables...27761
Connector list...27762
Connector diagram 1/3...27772
Connector diagram 2/3...27774
Connector diagram 3/3...27774
VEBM460104 - Wheel Loader WA380-3 Shop Manual...27776
Contents...27777
01 General...27784
Up to SN WA380H20500...27786
Dimensions and weights...27786
Dimensions and weights high-lift...27787
Specifications...27788
Weight table...27791
List of lubricant and water...27792
SN WA380H20501 and up...27793
Dimensions and weights...27793
Specifications...27794
Weight table...27797
List of lubricant and water...27798
Outlines of service...27800
General view of controls and gauges...27803
Torque list...27805
10 Structure and function...27806
Power train...27808
Power train system...27809
Torque converter, transmission piping...27811
Transmission hydraulic circuit diagram...27812
Torque converter...27814
Torque converter oil filter...27816
Transmission...27818
Transmission control valve...27828
Upper valve...27829
Transmission solenoid valve...27831
Pilot reducing valve...27832
Main relief valve...27833
Torque converter outlet port valve...27834
Priority valve...27835
Directional selector valve...27836
H-L selector valve and range selector valve...27837
Emergency manuel spool...27839
Electronic control modulation valve (ECMV)...27840
Pilot oil filter...27843
Accumulator valve...27844
Flow control valve...27846
Check valve...27847
Drife shaft...27848
Axle...27849
Differential...27851
Final drive...27856
Axle mount, center hinge pin...27857
Steering piping...27860
Steering control, orbit roll...27861
Orbit roll valve...27862
Steering valve...27863
Overload relief valve...27864
Steering relief valve...27866
Operation of demand valve...27867
Emergency steering...27874
Brake piping...27884
Park brake and foot brake circuits...27885
Brake valve...27886
Accumulator charge valve...27891
Accumulator for brake system...27895
Brake circuit diagram...27897
Brake...27909
Parking brake control...27911
Parking brake...27912
Parking brake valve...27913
Hydraulic piping...27914
Work equipment hydraulic system diagram...27915
Work equipment lever linkage...27925
Hydraulic tank...27926
Oil filter bypass valve...27927
PPC valve...27928
Operation of PPC valve...27933
PPC relief valve...27936
Accumulator (for PPC valve)...27937
Main control valve (up to H20383)...27938
Relief valve (up to H20383)...27942
Safety valve with suction (up to H20383)...27943
Suction valve (up to H20383)...27944
Main control valve (from H20384 up to H20836)...27945
Safety valve with suction (H20384 and up)...27947
Antcavitation valve (H20384 and up)...27948
Safety valve (H20384 and up)...27948
Main control valve (H20837 and up)...27949
Operation of cut-off valve (up to H20383)...27951
Work equipment valve operation...27953
Hydraulic safety system (up to H20836)...27959
Hydraulic safety system location (up to H20836)...27960
Hydraulic safety valve (up to H20836)...27961
Work equipment linkage...27962
Bucket...27964
Bucket positioner and boom kick-out...27965
Wiring diagrams...27972
Machine monitor system...28016
Transmission auot-shift control system...28023
Transmission controller...28028
ECSS (ALS electronic)...28030
Sensors...28040
Engine starting circuit...28045
Engine stop circuit...28046
Preheating circuit...28047
Electric transmission...28052
Combination switch...28053
Kick-down, hold switch...28055
Kick-down electric circuit diagram...28056
Transmission cut-off function...28061
Parking brake: transmission neutralizer...28062
Air conditioner...28064
20 Testing and adjusting...28118
Standard value table for engine...28119
Standard value table for chassis...28121
Tesz certificate...28125
Standard value table for electrical system...28129
Tools for testing, adjusting and troubleshooting...28142
Adjusting valve clearance...28144
Measuring compression pressure...28148
Measuring blow-by pressure...28150
Testing and adjusting fuel injection timing...28152
Measuring intake air pressure ...28154
Measuring engine oil pressure...28155
Measuring engine speed...28156
Measuring stall speed...28157
Testing the fan belt tension...28159
Measuring turbocharger clearance...28160
Turbocharger wastegate actuator - visual inspection...28161
Turbocharger wastegate actuator - functional checking...28163
Adjusting valve clearance...28164
Measuring compression pressure...28165
Measuring blow-by pressure...28166
Testing and adjusting fuel injection timing...28167
Measuring exhaust color...28170
Measuring inkake air pressure (boost pressure)...28171
Measuring exhaust gas pressure...28172
Measuring engine oil pressure...28173
Measuring engine speed...28174
Testing and adjusting fan belt tension...28175
Method for adjusting engine stop cable...28176
Measuring accelerator pedal...28178
Basic adjustment of accelerator pedal...28180
Measuring operating force, travel of speed lever...28182
Measuring stall speed...28183
Measuring torque converter, transmission, parking brake oil pressure...28185
Method of operating emergency manual spool...28187
Measuring clearance between tire and wheel...28189
Measuring steering oil pressure...28192
Measuring operating force, travel of brake pedal...28194
Measuring brake performance...28195
Testing brake oil pressure...28196
Testing for brake disk wear...28197
Bleeding air from brake system...28198
Measuring parking brake performance...28199
Manual release method for parking brake...28200
Testing wear of parking brake disk...28201
Measuring work equipment control lever...28202
Measuring work equipment hydraulic pressure...28204
Measuring PPC-valve pressure...28206
Measuring work equipment...28210
Testing and adjusting bucket positioner...28212
Testing and adjusting boom kick-out...28213
Adjusting main monitor...28215
Gas side test and topping up gas pressure...28216
Hydraulic accumulator...28218
Troubleshooting...28220
POINTS TO REMEMBER WHEN TROUBLESHOOTING...28221
SEQUENCE OF EVENTS IN TROUBLESHOOTING...28222
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE...28223
HANDLING CONNECTORS...28230
CHECKS BEFORE TROUBLESHOOTING...28231
METHOD OF USING TROUBLESHOOTING CHARTS...28232
CONNECTOR TYPES AND MOUNTING LOCATION...28241
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS...28250
TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)...28258
TROUBLESHOOTING OF MAIN MONITOR SYSTEM (M MODE)...28278
TROUBLESHOOTING OF MAINTENANCE MONITOR SYSTEM (K MODE)...28316
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)...28336
TROUBLESHOOTING OF TRANSMISSION CONTROLLER SYSTEM (A MODE)...28374
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (T MODE)...28394
TROUBLESHOOTING OF ECSS (D MODE)...28418
30 Disassembly and assembly...28432
Precautions when carrying out operations...28434
Special tool list...28437
Starting motor...28440
Alternator...28441
Engine oil cooler...28442
Fuel injection pump...28443
Water pump...28447
Turbocharger...28448
Nozzle holder...28449
Thermostat...28450
Cylinder head...28451
Radiator...28458
Engine...28462
Torque converter charging pump...28468
Torque converter, transmission...28470
Torque converter...28475
Transmission...28480
Transmission clutch pack...28504
Transmission control valve...28524
Transmission accumulator valve...28532
Drive shaft...28534
Front axle...28539
Rear axle...28540
Differential...28546
Axle housing...28561
Center hinge pin...28578
Steering gear...28585
Steering valve...28588
Steering cylinder...28605
Brake valve...28607
Right brake valve (tandem)...28609
Left brake valve (single)...28611
Parking brake disc...28613
Hydraulic tank...28616
Hydraulic filter...28619
Hydraulic, steering, switch, PPC pump...28620
Main control valve...28624
PPC valve...28632
Bucket cylinder...28637
Boom cylinder...28640
Hydraulic cylinder...28642
Work equipment...28648
Counterweight...28653
Fuel tank...28654
Cab, floor frame...28657
Cab...28660
Main monitor...28662
Maintenance monitor...28664
Air conditioner unit...28665
Air conditioner condenser...28671
Dry receiver...28673
Air conditioner condenser compressor...28674
40 Maintenance standard...28676
Engine mount, transmission mount...28677
Torque converter charging pump...28678
Torque converter...28679
Transmission...28680
Transmission control valve...28688
Flow control valve...28692
Accumulator valve...28693
Drive shaft...28694
Differential...28695
Final drive...28698
Axle mount...28700
Center hinge pin...28701
Steering column...28703
Steering valve...28704
Steering cylinder mount...28705
Brake...28706
Brake valve...28707
Parking brake...28710
Hydraulic pump...28711
Main control valve...28712
PPC valve...28716
Hydraulic cylinder...28717
Work equipment linkage...28718
Bucket...28720
Bucket positioner and boom kick-out...28721
Diagrams...28722
Komatsu Wheel Loader WA380, WA380Z-series Repair Service Manuals





