Complete service repair manual with Electrical Wiring Diagrams for Komatsu Motor Graders GD705, GD705A, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.

Komatsu Motor Graders GD705, GD705A 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.

SEAM234Y01 - Motor Grader GD705A-3 Operation & Maintenance Manual.pdf
SEAM036701 - Motor Grader GD705A-4 Operation & Maintenance Manual.pdf
SEBM022104 - Motor Grader GD705A-4 Shop Manual.pdf
SEN06489-03 - Motor Grader GD705-5 Shop Manual.pdf

Total Pages: 1,543 pages
File Format: PDF
Language: English

TABLE OF CONTENTS
SEAM036701 - Motor Grader GD705A-4 Operation & Maintenance Manual...2
  COVER...2
  FOREWORD...3
    FOREWORD...4
    SAFETY INFORMATION...7
    INTRODUCTION...9
      INTENDED USE...9
      DIRECTIONS OF MACHINE...9
    LOCATION OF PLATES,TABLE TO ENTER SERIAL NO.AND DISTRIBUTOR...10
      MACHINE SERIAL NO.PLATE POSITION...10
      ENGINE SERIAL NO.PLATE POSITION...10
      SERVICE METER POSITION...11
      TABLE TO ENTER SERIAL NO.AND DISTRIBUTOR...11
  CONTENTS...12
  SAFETY...15
    SAFETY LABELS...16
      POSITION FOR ATTACHING SAFETY LABELS...16
      SAFETY LABELS...17
    GENERAL PRECAUTIONS...21
    PRECAUTIONS DURING OPERATION...30
      BEFORE STARTING ENGINE...30
      AFTER STARTING ENGINE...32
      TRANSPORTATION...37
      BATTERY...38
      TOWING...40
    PRECAUTIONS FOR MAINTENANCE...41
      BEFORE CARRYING OUT MAINTENANCE...41
      DURING MAINTENANCE...43
    PRECAUTIONS WITH TIRES...48
  OPERATION...49
    GENERAL VIEW...50
      GENERAL VIEW OF MACHINE...50
      GENERAL VIEW OF CONTROLS AND GAUGES...51
    EXPLANATION OF COMPONENTS...53
      METERS AND LAMPS...53
      SWITCHES...57
      CONTROL LEVERS,PEDALS...62
      DUST INDICATOR...70
      ARTICULATE LOCK PIN...70
      FUSE BOX...70
    OPERATION...72
      CHECK BEFORE STARTING ENGINE...72
      STARTING ENGINE...86
      OPERATIONS,CHECKS AFTER STARTING ENGINE...90
      STOPPING ENGINE...92
      CHECK AFTER STOPPING ENGINE...93
      TRAVELING POSTURE FOR MACHINE...93
      MOVING MACHINE OFF(FORWARD,REVRESE,SHIFTING GEAR),STOPPING...94
      TURNING MACHINE...100
      OPERATING WORK EQUIPMENT...103
      WORK WHICH CAN BE CARRIED OUT USING A MOTOR GRADER...107
      PRECAUTIONS WHEN OPERATION...127
      ADJUSTING WORK EQUIPMENT POSTURE...130
      PARKING MACHINE...137
      CHECKS AFTER COMPLETION OF OPERATION...139
      LOCKING(IF EQUIPPED WITH CAB)...139
      HANDLING THE TIRES...139
    TRANSPORTATION...140
      LOADING, UNLOADING WORK...140
      PRECAUTIONS FOR LOADING...140
    COLD WEATHER OPERATION...141
      PRECAUTIONS FOR LOW TEMPERATURE...141
      CAUTIONS AFTER COMPLETION OF WORK...143
      AFTER COLD WEATHER...143
    LONG-TERM STORAGE...144
      BEFORE STORAGE...144
      DURING STORAGE...144
      AFTER STORAGE...144
    TROUBLESHOOTING...145
      AFTER RUNNING OUT OF FUEL...145
      WHEN LEANING PIPING IS DAMAGED...146
      TOWING THE MACHINE...147
      IF BATTERY IS DISCHARGED...149
      OTHER TROUBLE...153
  MAINTENANCE...158
    GUIDE TO MAINTENANCE...159
    OUTLINES OF SERVICE...161
      OUTLINE OF OIL, FUEL, COOLANT...161
      RELATING TO ELECTRIC SYSTEM...163
    WEAR PARTS LIST...164
    USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE...165
      PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS...165
    STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS...169
      TORQUE LIST...169
    PERIODIC REPLACEMENT OF CRITICAL PARTS...170
      CRITICAL PARTS...170
    MAINTENANCE SCHEDULE CHART...171
      MAINTENANCE SCHEDULE CHART...171
    SERVICE PROCEDURE...174
      INITIAL 250 HOURS SERVICE...174
      WHEN REQUIRED...175
        CLEAN INSIDE OF COOLING SYSTEM...175
        CHECK,CLEAN AND REPLACE AIR CLEANER ELEMENT...178
        CHECK ELECTRICAL INTAKE AIR HEATER...180
        REPLACE THE CUTTING EDGES,REVERSE AND REPLACE END BIT...180
        CHECK INCHING PEDAL...180
        CHECK DISC BRAKE...181
        SELECTION AND INSPECTION OF TIRES...183
      CHECK BEFORE STARTING...185
      EVERY 50 HOURS SERVICE...186
        LUBRICATING...186
      EVERY 250 HOURS SERVICE...187
        LUBRICATING...187
        CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE...190
        CHECK OIL LEVEL IN TRANSMISSION CASE, ADD OIL...192
        CHECK OIL LEVEL IN FINAL DRIVE CASE, ADD OIL...193
        CHECK OIL LEVEL IN TANDEM DRIVE CASE, ADD OIL...194
        CHECK OIL LEVEL IN CIRCLE REVERSE GEAR CASE,ADD OIL...194
        CHECK OIL LEVEL IN HYDRAULIC TANK,ADD OIL...195
        CHECK LEVEL OF BATTERY ELECTROLYTE...196
        CHECK BALL JOINT CLEARANCE,ADJUST...196
        CHECK AND TIGHTEN WHEEL HUB NUT AND HUB BOLT...197
        CHECK PARKING BRAKE LEVER STROKE,ADJUST...198
        CHECKING WHEEL RIM,LOCK RING AND SIDE RING FOR CORROSION AND WEAR...199
        CHECK FAN BELT TENSION,ADJUST...199
      EVERY 500 HOURS SERVICE...200
        REPLACE FUEL FILTER CARTRIDGE...200
        REPLACE TRANSMISSION OIL FILTER ELEMENT...201
        CLEAN,CHECK RADIATOR FINS...201
        CHECK CIRCLE GUIDE CLEARANCE,ADJUST...202
      EVERY 1000 HOURS SERVICE...204
        GREASE DRIVE SHAFT...204
        CHANGE OIL IN TRANSMISSION CASE,CLEAN STRAINER...205
        CHANGE OIL IN FINAL DRIVE CASE...206
        CHANGE OIL IN CIRCLE REVERSE GEAR CASE...207
        CHANGE OIL PIN HYDRAULIC TANK,REPLACE FILTER ELEMENT AND CLEAN STRAINER...208
        CHECK LOOSENESS IN DRAWBAR FRONT BALL JOINT...209
        CHECK TOE-IN,ADJUST...210
        REPLACE CORROSION RESISTOR CARTRIDGE...211
        CHECK FRONT WHEEL BEARING PLAY,ADJUST...211
        CHECK ALL TIGHTENING PARTS OF TURBOCHARGER...211
        CHECK PLAY OF TURBOCHARGER ROTOR...211
      EVERY 2000 HOURS SERVICE...212
        CHANGE OIL IN FRONT WHEEL BEARING...212
        CHANGE OIL IN TANDEM DRIVE CASE...212
        CHECK ALTERNATOR,STARTING MOTOR...212
        CHECK ENGINE VALVE CLEARANCE,ADJUST...212
        CHECK VIBRATION DAMPER...212
        CLEAN,CHECK TURBOCHARGER...213
        CLEAN ENGINE BREATHER ELEMENT...213
      EVERY 4000 HOURS SERVICE...214
        CHECK WATER PUMP...214
  SPECIFICATIONS...215
    SPECIFICATIONS...216
  OPTIONS,ATTACHMENTS...217
    HANDLING BLADE ACCUMULATOR...218
      FEATURES OF BLADE ACCUMULATOR...218
      METHOD OF OPERATING BLADE ACCUMULATOR...219
  INDEX...220
SEAM234Y01 - Motor Grader GD705A-3 Operation & Maintenance Manual...223
  COVER...223
  FOREWORD...224
  BREAKING IN YOUR NEW MACHINE...225
  CONTENTS...226
  SAFETY HINTS...227
  GENERAL LOCATIONS...239
  OPERATOR'S COMPARTMENT...241
  INSTRUMENTS AND CONTROLS...243
  CHECK BEFORE STARTING...262
  OPERATING YOUR MACHINE...270
  COLD WEATHER OPERATION...281
  WORKS TO BE CARRIED OUT BY A MOTOR GRADER...286
  OPERATING OF WORK EQUIPMENT...291
  REVERSING AND REPLACEMENT OF CUTTING EDGE AND END BIT...304
  CHANGING TIRES...306
  DRIVING ALONG ROAD...308
  HANDLING OF BATTERY...309
  TRANSPORTATION...312
  MAINTENANCE...314
    PERIODIC MAINTENANCE...315
      PRECAUTIONS FOR MAINTENANCE...316
      MAINTENANCE TABLE...323
      EVERY 50 HOURS SERVICE...331
      INITIAL 250 HOURS SERVICE...332
      EVERY 250 HOURS SERVICE...332
      EVERY 500 HOURS SERVICE...344
      EVERY 1000 HOURS SERVICE...348
      EVERY 2000 HOURS SERVICE...357
      EVERY 4000 HOURS SERVICE...361
      WHEN REQUIRED...362
    ADJUSTMENT...368
    TROUBLE SHOOTING GUIDE...369
    WEAR PARTS...373
    STORAGE...374
    SERVICE METER...376
    MACHINE AND ENGINE SERIAL NUMBERS...377
    SPECIFICATIONS...378
    FUEL AND LUBRICANTS...380
SEBM022104 - Motor Grader GD705A-4 Shop Manual...383
  COVER...383
  CONTENTS...384
  SAFETY...387
    SAFETY NOTICE...387
      GENERAL PRECAUTIONS...387
      PRECAUTIONS FOR WORK...387
      PRECAUTIONS DURING WORK...388
  FOREWARD...389
    GENERAL...389
    HOW TO READ THE SHOP MANUAL...390
      VOLUMES...390
      DISTRIBUTION AND UPDATING...390
      FILING METHOD...390
      REVISED EDITION MARK...390
      REVISIONS...390
      SYMBOLS...390
    HOISTING INSTRUCTIONS...391
      HOISTING...391
      WIRE ROPES...391
    METHOD OF DISASSEMBLING, CONNECTING PUSH-PULL TYPE COUPLER...392
    COATING MATERIALS...394
    STANDARD TIGHTENING TORQUE...396
      STANDARD TIGHTENING TORQUE OF BOLTS AND NUTS...396
      TIGHTENING TORQUE OF HOSE NUTS...397
      TIGHTENING TORQUE OF SPLIT FLANGE BOLTS...397
      TIGHTENING TORQUE FOR FLARED NUTS...397
      TIGHTENING TORQUE FOR 102 ENGINE SERIES (BOLTS AND NUTS)...398
      TIGHTENING TORQUE FOR 102 ENGINE SERIES (EYE JOINTS)...398
      TIGHTENED TORQUE FOR 102 ENGINE SERIES (TAPERED SCREWS)...398
    ELECTRIC WIRE CODE...399
      CLASSIFICATION BY THICKNESS...399
      CLASSIFICATION BY COLOR AND CODE...399
    CONVERSION TABLES...400
      METHOD OF USING THE CONVERSION TABLE...400
    UNITS...406
  01 GENERAL...407
    GENERAL ASSEMBLY DRAWING...408
    SPECIFICATIONS...409
    WEIGHT TABLE...411
    LIST OF LUBRICANT AND WATER...412
  10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD...414
    ENGINE MOUNTING...415
    RADIATOR...416
    FUEL TANK PIPING...417
    ACCELERATOR CONTROL...418
    POWER TRAIN...419
    DAMPER...421
    PTO (POWER TAKE OFF)...422
    HYDROSHIFT TRANSMISSION...424
    HYDROSHIFT TRANSMISSION CONTROL VALVE...435
    HYDROSHIFT TRANSMISSION PIPING...450
    LUBRICATION RELIEF VALVE...451
    TRANSMISSION PUMP...452
    TRANSMISSION CONTROL...455
    DRIVE SHAFT...457
    FINAL DRIVE...458
    TANDEM DRIVE...463
    STEERING PIPING...467
    STEERING WHEEL...471
    STEERING VALVE (ORBIT ROLL TYPE)...472
    STEERING SYSTEM...473
    STEERING PUMP...481
    STEERING CYLINDER...484
    FRONT AXLE...486
    WHEEL...492
    BRAKE PIPING...494
    DISC BRAKE SYSTEM...496
    BRAKE VALVE...500
    RELAY VALVE...504
    AIR GOVERNOR...506
    CHECK VALVE...508
    AIR RESERVOIR...509
    SAFETY VALVE...509
    PRESSURE SWITCH...510
    AUTOMATIC DRAIN VALVE...512
    AIR DRIER...514
    AIR COMPRESSOR...516
    PARKING BRAKE...517
    PARKING BRAKE CONTROL...520
    HYDRAULIC PIPING...522
    MAIN CONTROL VALVE...527
    PILOT CHECK VALVE...531
    DDV (DUAL DEMAND VALVE)...539
    FLOW DIVIDER VALVE...557
    HYDRAULIC PUMP...558
    CIRCLE ROTATION MOTOR...561
    HYDRAULIC CYLINDER...564
    WORK EQUIPMENT CONTROL...574
    WORK EQUIPMENT...576
  20 TESTING AND ADJUSTING...595
    STANDARD VALUE TABLE FOR ENGINE...596
    STANDARD VALUE TABLE FOR CHASSIS...597
    TESTING AND ADJUSTING...600
      TESTING AND ADJUSTING TOOL LIST (FOR ENGINE)...601
      TESTING AND ADJUSTING VALVE CLEARANCE...602
      MEASURING COMPRESSION PRESSURE...603
      MEASURING BLOW-BY...604
      TESTING AND ADJUSTING FAN BELT TENSION...605
      TESTING AND ADJUSTING FUEL INJECTION TIMING...606
      INCHING PEDAL STROKE AND OPERTING FORCE...608
      HYDROSHIFT TRANSMISSION...609
      TRANSMISSION CONTROL LEVER STROKE AND OPERATING FORCE...611
      ADJUSTING F/R CONTROL CABLE...612
      ADJUSTING TRANSMISSION CONTROL LINKAGE...613
      STEERING WHEEL...615
      CHECKING TIRE PLAY...616
      CHECKING TIRE AIR PRESSURE...616
      CHECKING TOE-IN...617
      CHECKING PARKING BRAKE LEVER STROKE AND OPERATING FORCE...619
      CHECKING WEAR OF BRAKE DISC...620
      CHECKING HYDRAULIC OIL PRESSURE...621
      CHECKING HYDRAULIC OIL TEMPERATURE...622
      WORK EQUIPMENT CONTROL LEVER STROKE AND OPERATING FORCE...623
      HYDRAULIC DRIFT OF BLADE...623
      MEASURING BLADE SINKING AMOUNT...623
    TROUBLESHOOTING...624
      POINTS TO REMEMBER WHEN TROUBLESHOOTING...625
      SEQUENCE OF EVENTS IN TROUBLESHOOTING...626
      POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE...627
      CHECKS BEFORE TROUBLESHOOTING...635
      CONNECTOR TYPES AND MOUNTING LOCATIONS...636
      CONNECTOR TABLE FOR CONNECTOR PIN NUMBERS...639
      TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)...643
        E-1 ENGINE DOES NOT START...644
        E-2 ELECTRIC SYSTEM DOES NOT WORK...647
        E-3 SERVICE METER DOES NOT WORK...648
        E-4 WATER TEMPERATURE GUAGE INDICATES ABNORMALLY HIGH TEMPERATURE...649
        E-5 WATER TEMPERATURE GUAGE DOES NOT WORK...649
        E-6 FUEL GUAGE ALWAYS INDICATES FULL...650
        E-7 FUEL GUAGE DOES NOT WORK...650
        E-8 ENGINE OIL PRESSURE GUAGE INDICATES ABNORMALLY HIGH PRESSURE...651
        E-9 ENGINE OIL PRESSURE GUAGE DOES NOT WORK...651
  30 DISASSEMBLY AND ASSEMBLY...652
    ALTERNATOR ASSEMBLY...654
      REMOVAL AND INSTALLATION...654
    STARTING MOTOR AND ASSEMBLY...655
      REMOVAL AND INSTALLATION...655
    OIL COOLER ASSMBLY...655
      REMOVAL AND INSTALLATION...655
    HYDROSHIFT TRANSMISSION OIL COOLER ASSEMBLY...656
      REMOVAL AND INSTALLATION...656
    WATER PUMP ASSEMBLY...657
      REMOVAL AND INSTALLATION...657
    FUEL INJECTION PUMP ASSEMBLY...658
      REMOVAL AND INSTALLATION...658
    AIR COMPRESSOR ASSEMBLY...659
      REMOVAL AND INSTALLATION...659
    TURBOCHARGER ASSEMBLY...660
      REMOVAL AND INSTALLATION...660
    NOZZLE HOLDER ASSEMBLY...661
      REMOVAL AND INSTALLATION...661
    CYLINDER HEAD ASSEMBLY...663
      REMOVAL...663
      INSTALLATION...669
    RADIATOR ASSEMBLY...675
      REMOVAL...675
      INSTALLATION...677
    FUEL TANK ASSEMBLY (INC. HYDRAULIC TANK)...679
      REMOVAL...679
      INSTALLATION...681
    ENGINE ASSEMBLY (INC. TRANSMISSION)...683
      REMOVAL...683
      INSTALLATION...688
    HYDROSHIFT TRANSMISSION ASSEMBLY...695
      DISASSEMBLY...695
      ASSEMBLY...705
    CAGE AND REVERSE CARRIER ASSEMBLY...716
      DISASSEMBLY AND ASSEMBLY...716
    1ST SPEED AND 2ND SPEED CARRIER ASSEMBLY...717
      DISASSEMBLY...717
      ASSEMBLY...718
    HIGH REVOLUTION CLUTCH ASSEMBLY...719
      DISASSEMBLY...719
      ASSEMBLY...720
    PLANETARY GEAR...721
      DISASSEMBLY AND ASSEMBLY...721
    HYDROSHIFT TRANSMISSION PUMP ASSEMBLY...722
      REMOVAL AND INSTALLATION...722
    TANDEM AND FINAL DRIVE ASSEMBLY...723
      REMOVAL...723
      INSTALLATION...724
    FINAL DRIVE ASSEMBLY...725
      DISASSEMBLY...725
      ASSEMBLY...731
    BEVEL GEAR ASSEMBLY...739
      DISASSEMBLY...739
      ASSEMBLY...742
    BEVEL PINION ASSEMBLY...745
      REMOVAL...745
      INSTALLATION...746
      DISASSEMBLY...748
      ASSEMBLY...749
    SPROCKET ASSEMBLY...751
      REMOVAL...751
      INSTALLATION...753
    CHAIN...755
      REMOVAL...755
      INSTALLATION...757
    FRONT AXLE ASSEMBLY...759
      REMOVAL...759
      INSTALLATION...761
    STEERING PUMP ASSEMBLY...763
      REMOVAL AND INSTALLATION...763
    STEERING CYLINDER ASSEMBLY...764
      REMOVAL AND INSTALLATION...764
    WHEEL BRAKE ASSEMBLY...765
      DISASSEMBLY...765
      ASSEMBLY...767
    HYDRAULIC TANK...769
      REMOVAL AND INSTALLATION...769
    HYDRAULIC PUMP ASSEMBLY...770
      REMOVAL AND INSTALLATION...770
    HYDRAULIC CONTROL VALVE ASSEMBLY...771
      REMOVAL...771
      INSTALLATION...772
    BLADE LIFT CYLINDER ASSEMBLY...773
      REMOVAL AND INSTALLATION...773
    DRAWBAR SHIFT CYLINDER ASSEMBLY...774
      REMOVAL AND INSTALLATION...774
    BLADE SIDE SHIFT CYLINDER ASSEMBLY...775
      REMOVAL...775
      INSTALLATION...776
    LEANING CYLINDER ASSEMBLY...777
      REMOVAL AND INSTALLATION...777
    ARTICULATE CYLINDER ASSEMBLY...778
      REMOVAL AND INSTALLATION...778
    POWER TILT CYLINDER ASSEMBLY...779
      REMOVAL AND INSTALLATION...779
    HYDRAULIC CYLINDER ASSEMBLY...780
      DISASSEMBLY...780
      ASSEMBLY...783
    BLADE ASSEMBLY...790
      REMOVAL AND INSTALLATION...790
    CIRCLE ROTATION GEAR AND HYDRAULIC MOTOR ASSEMBLY...791
      REMOVAL AND INSTALLATION...791
      DISASSEMBLY...792
      ASSEMBLY...794
  90 OTHERS...798
    HYDRAULIC CIRCUIT DIAGRAM (STD SPEC.)...799
    HYDRAULIC CIRCUIT DIAGRAM (DDV SPEC.)...801
    HYDROSHIFT TRANSMISSION CONTROL CIRCUIT DIAGRAM...803
    ELECTRICAL CIRCUIT DIAGRAM (1/2)...804
    ELECTRICAL CIRCUIT DIAGRAM (2/2)...806
    ELECTRICAL CIRCUIT DIAGRAM FOR AIR CONDITIONER...808
    ELECTRICAL CIRCUIT DIAGRAM FOR CAB...810
SEN06489-03 - Motor Grader GD705-5 Shop Manual...812
  Cover...812
  Notice of revision...814
  00 Index and foreword...822
    Foreword and general information...834
      Safety notice...834
      How to read the shop manual...839
      Explanation of terms for maintenance standard...841
      Handling of electric equipment and hydraulic components...843
      Handling of connectors newly used for engines...852
      How to read electric wire code...855
      Precautions when carrying out work...858
      Method of disassembling and connecting push-pull type coupler...861
      Standard tightening torque table...864
      List of Abbreviation...868
      Conversion table...872
  01 Specification...878
    Specification drawing...880
    Specifications...882
    Weight table...888
    Table of fuel, coolant and lubricants...889
  10 Structure and function...892
    Engine and cooling system...895
      Cooling system...895
      Cooling fan motor...897
    Power train system...904
      Power train system drawing...904
      Power train piping drawing...905
      Transmission control...906
      Torque converter...907
      Transmission...911
      Transmission control valve...931
      ECMV...933
      Main relief and torque converter relief valve...940
      Front axle...942
      Final drive...945
      Differential...948
      Differential lock solenoid valve...950
      Tandem drive...951
    Steering system...954
      Steering piping diagram...954
      Priority valve...955
      Steering valve...961
    Brake system...969
      Brake hydraulic piping diagram...969
      Brake valve...970
      Slack adjuster...975
      Accumulator (for brake)...977
      Charge valve...978
      Wheel brake...983
      Parking brake and bank control valve...984
      Parking brake...985
    Undercarriage and frame...986
      Frame...986
      Tire...987
    Hydraulic system...988
      Hydraulic system...988
      Work equipment hydraulic component layout...991
      Work equipment control...994
      Hydraulic tank...996
      Main pump...997
      Power train pump...1009
      Control valve...1011
      CLSS...1020
      Functions and operation by valve...1023
      Swivel joint...1033
      Pilot check valve...1034
      Separately installed safety valve...1038
      Accumulator (for blade)...1039
    Work equipment...1041
      Circle and drawbar...1041
      Blade...1043
      Lifter...1045
      Circle rotation motor...1047
      Circle rotation gear...1049
    Cab...1051
      Cab...1051
    Electrical system...1053
      Machine monitor...1053
      Automatic shift control system...1056
      Transmission controller...1064
      Engine controller...1067
      KOMTRAX system...1070
      Starting engine circuit...1075
      Stopping engine circuit...1077
      Preheating circuit...1078
      Engine power mode select circuit...1079
      Cooling fan control function...1080
      Sensor...1084
  20 Standard value table...1096
    Standard value table...1098
      Standard value table for engine...1098
      Standard value table for machine...1100
        Machine posture and procedure for measuring performance...1108
  30 Testing and adjusting...1110
    Related information on testing and adjusting...1113
      Tools for testing and adjusting...1113
      Sketch of tools for testing and adjusting...1116
    Engine and cooling system...1117
      Testing engine speed...1117
      Testing boost pressure...1120
      Testing exhaust gas temperature...1122
      Testing exhaust gas color...1124
      Testing and adjusting valve clearance...1126
      Testing compression pressure...1129
      Testing blowby pressure...1133
      Testing engine oil pressure...1134
      Handling equipment of fuel system devices...1135
      Releasing remaining pressure from fuel system...1135
      Testing fuel pressure...1136
      Testing fuel return rate and leakage...1141
      Bleeding air from fuel circuit...1144
      Testing fuel circuit for leakage...1145
      Handling cylinder cutout mode operation...1146
      Handling no-injection cranking operation...1146
      Testing muffler (main body) and stuck muffler for looseness and damage...1147
      Testing muffler function...1147
      Testing installed condition of cylinder heads and manifolds...1147
      Testing of engine piping for damage and looseness...1147
      Testing and adjusting air conditioner compressor belt tension...1148
      Replacing alternator belt...1149
    Power train...1150
      Testing power train oil pressure...1150
      Adjusting transmission speed sensor...1163
      Retrieval of disabled machine due to transmission valve failure...1166
      Flushing procedure for torque converter and transmission circuits...1169
      Testing and adjusting toe-in...1171
      Testing and adjusting differential lock oil pressure...1172
    Steering system...1175
      Testing and adjusting steering oil pressure...1175
      Testing oil leakage of steering cylinder...1176
      Bleeding air from steering circuit...1176
    Brake system...1177
      Testing and adjusting brake oil pressure...1177
      Releasing remaining pressure from brake circuit...1181
      Bleeding air from brake circuit...1182
      Testing wear of wheel brake disc...1183
      Testing and adjusting parking brake...1184
      Parking brake emergency releasing procedure...1186
      Procedure for charging brake accumulator with nitrogen gas...1187
    Hydraulic system...1190
      Testing and adjusting work equipment oil pressure...1190
      Testing and adjusting pump LS differential pressure...1193
      Testing lift arm lock cylinder circuit oil pressure...1195
      Testing oil leakage of work equipment cylinder...1196
      Bleeding air from work equipment circuit...1199
      Testing cooling fan pump circuit oil pressure...1200
    Work equipment system...1202
      Adjusting drawbar ball joint clearance...1202
      Testing and adjusting circle guide clearance...1203
      Adjusting circle rotation gear...1205
      Procedure for charging blade accumulator with nitrogen gas...1208
    Electrical system...1209
      Special functions of machine monitor...1209
      KOMTRAX terminal start-up procedure (ORBCOMM)...1257
      Lamp indication of KOMTRAX terminal (ORBCOMM)...1262
      KOMTRAX terminal start-up procedure (GPRS)...1265
      Lamp indication of KOMTRAX terminal (GPRS)...1268
      Handling voltage circuit of engine controller...1271
      Testing diodes...1272
    Pm Clinic...1273
      Pm Clinic service...1273
  40 Troubleshooting...1280
    General information on troubleshooting...1287
      Points to remember when troubleshooting...1287
      Sequence of events in troubleshooting...1288
      Checks before troubleshooting...1289
      Preparation work for troubleshooting of electrical system...1310
      Classification and procedures for troubleshooting...1313
      Failure codes table...1314
      Failure and troubleshooting numbers...1321
      Information in troubleshooting table...1323
      Troubleshooting method for open circuit in wiring harness of pressure sensor system...1325
      Connector list and layout...1327
      Connection table for connector pin numbers...1341
      T- branch box and T- branch adapter table...1377
      Locations of fuses...1380
    Troubleshooting by failure code...1382
      Failure code [1500L0] TORQFLOW transmission: Double engagement...1382
      Failure code [15G0MW] Transmission R clutch: Slip...1383
      Failure code [15H0MW] Transmission FH clutch: Slip...1384
      Failure code [15J0MW] Transmission FL clutch: Slip...1384
      Failure code [15K0MW] Transmission 1st clutch: Slip...1385
      Failure code [15L0MW] Transmission 2nd clutch: Slip...1386
      Failure code [15M0MW] Transmission 3rd speed clutch: Slip...1387
      Failure code [15N0MW] Transmission 4th clutch: Slip...1388
      Failure code [15SBL1] ECMV R clutch: Fill signal is ON when command signal is OFF...1389
      Failure code [15SBMA] ECMV R clutch: Malfunction...1391
      Failure code [15SCL1] ECMV FH clutch: Fill signal is ON when command signal is OFF...1393
      Failure code [15SCMA] ECMV FH clutch: Malfunction...1395
      Failure code [15SDL1] ECMV FL clutch: Fill signal is ON when command signal is OFF...1397
      Failure code [15SDMA] ECMV FL clutch: Malfunction...1399
      Failure code [15SEL1] ECMV 1st clutch: Fill signal is ON when command signal is OFF...1401
      Failure code [15SEMA] ECMV 1st clutch: Malfunction...1403
      Failure code [15SFL1] ECMV 2nd clutch: Fill signal is ON when command signal is OFF...1405
      Failure code [15SFMA] ECMV 2nd clutch: Malfunction...1407
      Failure code [15SGL1] ECMV 3rd clutch: Fill signal is ON when command signal is OFF...1409
      Failure code [15SGMA] ECMV 3rd clutch: Malfunction...1411
      Failure code [15SHL1] ECMV 4th clutch: Fill signal is ON when command signal is OFF...1413
      Failure code [15SHMA] ECMV 4th clutch: Malfunction...1415
      Failure code [15SJMA] ECMV lockup clutch: Malfunction...1417
      Failure code [15U0NT] Inching clutch: Overheating...1417
      Failure code [2G42ZG] Front accumulater: Oil pressure drop...1418
      Failure code [2G43ZG] Rear accumulater: Pressure drop...1418
      Failure code [AA1ANX] Air cleaner: Clogging...1419
      Failure code [AB00L6] Alternator; Engine start and stop signals are not matched...1421
      Failure code [AB00MA] Alternator: Malfunction...1423
      Failure code: [B@BAZG] Derating in speed due to engine oil pressure drop...1425
      Failure code: [B@BCNS] Engine coolant overheat...1425
      Failure code [B@BEBF] Water in fuel error...1426
      Failure code: [B@CENS] Torque converter oil overheat...1427
      Failure code: [B@CKNS] Differential case: Overheat...1429
      Failure code: [B@HANS] Hydraulic oil: Overheating...1431
      Failure code [CA111] Engine controller internal error...1433
      Failure code [CA115] Engine Ne, Bkup speed sensor error...1434
      Failure code [CA122] Charge pressure sensor high error...1435
      Failure code [CA123] Charge pressure sensor low error...1437
      Failure code [CA131] Throttle sensor high error...1439
      Failure code [CA132] Throttle sensor low error...1441
      Failure code [CA144] Coolant sensor high error...1443
      Failure code [CA145] Coolant sensor low error...1445
      Failure code [CA153] Charge temperature sensor high error...1447
      Failure code [CA154] Charge temperature sensor low error...1449
      Failure code [CA155] Speed derating error by high charge temperature...1451
      Failure code [CA187] Sensor power supply 2 low error...1453
      Failure code [CA221] Atmospheric pressure sensor high error...1455
      Failure code [CA222] Atmospheric pressure sensor low error...1457
      Failure code [CA227] Sensor power supply 2 high error...1459
      Failure code [CA234] Engine overspeed...1459
      Failure code [CA238] Ne speed sensor power supply error...1460
      Failure code [CA271] IMV/IMA: Short circuit...1461
      Failure code [CA272] IMV/IMA open circuit...1463
      Failure code [CA281] Abnormal supply pump pressure balance...1465
      Failure code [CA322] Injector #1 (L#1) open/short...1467
      Failure code [CA323] Injector #5 (L#5) open/short...1469
      Failure code [CA324] Injector #3 (L#3) open/short...1471
      Failure code [CA325] Injector #6 (L#6) open/short...1473
      Failure code [CA331] Injector #2 (L#2) open/short...1475
      Failure code [CA332] Injector #4 (L#4) open/short...1477
      Failure code [CA342] Data compatibility error in engine controller...1479
      Failure code [CA351] Injector drive circuit error...1480
      Failure code [CA352] Sensor power supply 1 low error...1481
      Failure code [CA386] Sensor power supply 1 high error...1482
      Failure code [CA428] Water-in-fuel sensor high error...1483
      Failure code [CA429] Water-in-fuel sensor low error...1485
      Failure code [CA431] Idle validation switch error...1487
      Failure code [CA432] Idle validation action error...1491
      Failure code [CA435] Engine oil pressure switch error...1494
      Failure code [CA441] Power supply voltage low error...1495
      Failure code [CA442] Power supply voltage high error...1497
      Failure code [CA449] Common rail pressure high error 2...1498
      Failure code [CA451] Common rail pressure sensor high error...1499
      Failure code [CA452] Common rail pressure sensor low error...1501
      Failure code [CA488] Torque derating error by high charge temperature...1503
      Failure code [CA553] Common rail pressure high error 1...1504
      Failure code [CA559] Rail Press Low Error...1505
      Failure code [CA689] Eng Ne Speed Sensor Error...1507
      Failure code [CA731] Eng Bkup Speed Sens Phase Error...1509
      Failure code [CA757] All continuous data lost error...1510
      Failure code [CA778] Eng Bkup Speed Sensor Error...1511
      Failure code [CA1633] KOMNET (CAN communication) error...1514
      Failure code [CA2185] Throttle sensor power supply high error...1515
      Failure code [CA2186] Throttle sensor power supply low error...1517
      Failure code [CA2249] Supply pump pressure low error 2...1519
      Failure code [CA2265] Fuel Feed Pump Open Error...1521
      Failure code [CA2266] Fuel Feed Pump Short Error...1523
      Failure code [CA2311] Abnormality in IMV (IMA) solenoid...1524
      Failure code [CA2555] Intake heater relay open circuit...1525
      Failure code [CA2556] Intake heater relay short circuit...1527
      Failure code [D160KA] Backup lamp relay: Open circuit, hot short circuit in wiring harness...1529
      Failure code [D160KB] Backup lamp relay: Ground fault...1531
      Failure code [D19KKZ] Differential lock relay: Open circuit, ground fault...1533
      Failure code [D5ZHL6] C terminal signal: Signal does not match to actual engine state...1535
      Failure code [DAFRKR] CAN communication failure (monitor panel)...1537
      Failure code [DAQ0KK] Transmission controller: Power supply voltage low error (input)...1539
      Failure code [DAQOKT] Transmission controller: Non-volatile memory error...1541
      Failure code [DAQ2KK] Transmission controller load power line: Power supply voltage drop (input)...1543
      Failure code [DAQ9KQ] Transmission controller model selection: Model selection signal disagreement...1545
      Failure code [DAQRKR] Transmission controller CAN communication: Communication error...1547
      Failure code [DAQRMA] Transmission controller option setting: Malfunction...1551
      Failure code [DB2RKR] Engine controller CAN communication: Communication error...1552
      Failure code [DD1PKB] RPM set switch power supply short circuit...1559
      Failure code [DD1QKB] RPM set mode switch short circuit...1561
      Failure code [DDB6L4] Transmission gearshift lever: Parking brake signal error...1563
      Failure code [DDTHKA] Fill switch for FH clutch: Open circuit...1566
      Failure code [DDTJKA] Fill switch for FL clutch: Open circuit...1566
      Failure code [DDTKKA] Fill switch for 1st clutch: Open circuit...1567
      Failure code [DDTLKA] Fill switch for 2nd clutch: Open circuit...1567
      Failure code [DDTMKA] Fill switch for 3rd clutch: Open circuit...1568
      Failure code [DDTNKA] Fill switch for R clutch: Open circuit...1569
      Failure code [DDTPKA] Fill switch for 4th clutch: Open circuit...1570
      Failure code [DF10KA] Transmission gearshift lever: No gear speed signal is input...1571
      Failure code [DF10L4] Transmission gearshift lever: Gear speed/travel direction signal error...1575
      Failure code [DGF1KX] Transmission oil temperature sensor: Input signal out of range...1577
      Failure code [DGH2KB] Hydraulic oil temperature sensor: Ground fault...1579
      Failure code [DGT1KX] Torque converter oil temperature sensor: Input signal out of range...1581
      Failure code [DGT7KB] Differential oil temperature sensor: Ground fault...1583
      Failure code [DHT5KX] Out of Range of T/C Input Pressure Sensor...1585
      Failure code [DHT5L6] Failure of T/C Oil Press Sensor...1587
      Failure code [DJF1KA] Fuel level sensor: Open circuit...1589
      Failure code [DK70KX] Inching pedal angle sensor: Input signal out of range...1591
      Failure code [DKD0KX] Articulation angle sensor: Input signal out of range...1593
      Failure code [DLF1KA] Transmission input shaft speed sensor: Open circuit...1595
      Failure code [DLF1LC] Transmission input shaft speed sensor: Speed signal does not match...1596
      Failure code [DLF2KA] Transmission intermediate shaft speed sensor: Open circuit...1597
      Failure code [DLF2LC] Transmission intermediate shaft speed sensor: Speed signal does not match...1598
      Failure code [DLM3KA] Fan speed sensor: Open circuit...1599
      Failure code [DLM3LC] Fan speed sensor: Short circuit...1600
      Failure code [DLM3MB] Radiator Fan Control Mismatch...1601
      Failure code [DLT3KA] Transmission output shaft speed sensor: Open circuit...1602
      Failure code [DV00KB] Buzzer: Short circuit...1603
      Failure code [DW4BKA] Parking brake solenoid valve: Open circuit...1605
      Failure code [DW4BKB] Parking brake solenoid valve: Short circuit...1607
      Failure code [DX16KA] Fan motor EPC solenoid: Open circuit...1608
      Failure code [DX16KB] Fan motor EPC solenoid: Short circuit...1609
      Failure code [DX16KY] Fan motor EPC solenoid: Short circuit to power supply line...1611
      Failure code [DXH1KA] Lockup ECMV solenoid: Open circuit...1613
      Failure code [DXH1KB] Lockup ECMV solenoid: Short circuit...1614
      Failure code [DXH1KY] Lockup ECMV solenoid: Short circuit to power supply line...1615
      Failure code [DXH2KA] FH clutch ECMV solenoid: Open circuit...1617
      Failure code [DXH2KB] FH clutch ECMV solenoid: Short circuit...1618
      Failure code [DXH2KY] FH clutch ECMV solenoid: Short circuit to power supply line...1619
      Failure code [DXH3KA] FL clutch ECMV solenoid: Open circuit...1621
      Failure code [DXH3KB] FL clutch ECMV solenoid: Short circuit...1622
      Failure code [DXH3KY] FL clutch ECMV solenoid: Short circuit to power supply line...1623
      Failure code [DXH4KA] 1st clutch ECMV solenoid: Open circuit...1625
      Failure code [DXH4KB] 1st clutch ECMV solenoid: Short circuit...1626
      Failure code [DXH4KY] 1st clutch ECMV solenoid: Short circuit to power supply line...1627
      Failure code [DXH5KA] 2nd clutch ECMV solenoid: Open circuit...1629
      Failure code [DXH5KB] 2nd clutch ECMV solenoid: Short circuit...1630
      Failure code [DXH5KY] 2nd clutch ECMV solenoid: Short circuit to power supply line...1631
      Failure code [DXH6KA] 3rd clutch ECMV solenoid: Open circuit...1633
      Failure code [DXH6KB] 3rd clutch ECMV solenoid: Short circuit...1634
      Failure code [DXH6KY] 3rd clutch ECMV solenoid: Short circuit to power supply line...1635
      Failure code [DXH7KA] R clutch ECMV solenoid: Open circuit...1637
      Failure code [DXH7KB] R clutch ECMV solenoid: Short circuit...1638
      Failure code [DXH7KY] R clutch ECMV solenoid: Short circuit to power supply line...1639
      Failure code [DXHHKA] 4th clutch ECMV solenoid: Open circuit...1641
      Failure code [DXHHKB] 4th clutch ECMV solenoid: Short circuit...1642
      Failure code [DXHHKY] 4th clutch ECMV solenoid: Short circuit to power supply line...1643
    Troubleshooting of electrical system (E-mode)...1645
      E-1 Engine does not start (Starting motor does not turn)...1645
      E-2 Preheating does not work...1651
      E-3 When starting switch is turned to ON position, machine monitor displays nothing...1656
      E-4 When starting switch is turned to ON position, machine monitor does not reach standard screen...1659
      E-5 When starting switch is turned to ON position, caution monitor flashes or lights up, or machine monitor does not display correct screen...1659
      E-6 Emergency stop monitor lights up while engine is running...1660
      E-7 Speedometer or engine tachometer does not indicate correctly...1664
      E-8 Engine coolant temperature gauge does not indicate correctly...1665
      E-9 Articulation angle indicator does not indicate correctly...1667
      E-10 Torque converter oil temperature gauge does not indicate correctly...1669
      E-11 Fuel level gauge does not indicate correctly...1671
      E-12 Character display does not display correctly...1673
      E-13 Centralized warning lamp does not light up or does not go off...1675
      E-14 Alarm buzzer does not sound or does not stop sounding...1677
      E-15 Machine monitor mode selector switch does not work...1679
      E-16 Transmission mode does not switch...1683
      E-17 Engine mode does not switch...1685
      E-18 Differential lock function does not work or cannot be reset [for machine with differential lock specification]...1687
      E-19 Lift arm lock pin does not lock lift arm or does not unlock it [for machine with lift arm specification]...1691
      E-20 Blade accumulator function does not work or is not reset [for machine with blade accumulator specification]...1693
      E-21 Horn does not sound or does not stop sounding...1697
      E-22 Backup alarm does not sound or does not stop sounding...1699
      E-23 Headlamp, clearance lamp and tail lamp do not light up or do not go off...1702
      E-24 Working lamp does not light up or does not go off...1709
      E-25 Fog lamp does not light up or does not go off...1715
      E-26 Turn signal lamp and hazard lamp do not flash...1717
      E-27 Stop lamp does not light up or does not go off...1723
      E-28 Backup lamp does not light up or does not go off...1725
      E-29 Windshield wiper does not operate...1727
      E-30 Window washer does not operate...1735
      E-31 KOMTRAX system does not operate correctly...1739
    Troubleshooting for hydraulic and mechanical system (H-mode)...1743
      Information described in troubleshooting table (H-mode)...1743
      H-1 Engine speed drops significantly or engine stalls...1744
      H-2 Machine does not move off (both forward and reverse)...1745
      H-3 Gear speed does not shift...1746
      H-4 Travel speed or power is low...1747
      H-5 Torque converter lockup does not operate or is not canceled...1749
      H-6 Machine starts or gear speed shifts with long time lag...1750
      H-7 Torque converter oil temperature is high...1751
      H-8 Differential lock function does not operate or is not canceled...1752
      H-9 Steering speed or power is insufficient...1753
      H-10 Steering wheel does not move...1754
      H-11 Wheel brakes do not work or are weak...1755
      H-12 Wheel brakes are not released or drag...1756
      H-13 Parking brake does not work or it is weak...1757
      H-14 Parking brake (including emergency release system) is not released or drags...1758
      H-15 All work equipment operates slowly or lacks power...1759
      H-16 All work equipments do not operate...1760
      H-17 Unusual noise is heard from around hydraulic pump...1761
      H-18 Blade lift speed or power is low...1762
      H-19 Hydraulic drift of lifted blade is large...1763
      H-20 Drawbar side shift speed or power is low...1764
      H-21 Blade cross slide speed or power is low...1765
      H-22 Power tilt speed or power is low...1766
      H-23 Articulate speed or power is low...1767
      H-24 Leaning speed or power is insufficient...1768
      H-25 Hydraulic drift (tilting) of leaning is large...1769
      H-26 Blade does not rotate...1770
      H-27 Lift arm lock pin is not locked or is not canceled...1771
      H-28 Blade accumulator does not operate or is not canceled [blade accumulator specifications]...1772
      H-29 Fan rotation is abnormal (such as excessive noise or vibration of fan, or overheating)...1773
      H-30 Unusual noise is heard from around fan...1774
    Troubleshooting of engine (S-mode)...1776
      Method of using troubleshooting charts...1776
      S-1 Starting performance is poor...1779
      S-2 Engine does not start...1780
      S-3 Engine does not pick up smoothly...1783
      S-4 Engine stops during operations...1784
      S-5 Engine does not rotate smoothly...1785
      S-6 Engine lacks output (or lacks power)...1786
      S-7 Exhaust smoke is black (incomplete combustion)...1787
      S-8 Oil consumption is excessive (or exhaust smoke is blue)...1788
      S-9 Oil becomes contaminated quickly...1789
      S-10 Fuel consumption is excessive...1790
      S-11 Oil is in coolant (or coolant spurts back, or coolant level goes down)...1791
      S-12 Oil pressure drops...1792
      S-13 Oil level rises (water, fuel in oil)...1793
      S-14 Coolant temperature becomes too high (overheating)...1794
      S-15 Abnormal noise is made...1795
      S-16 Vibration is excessive...1796
    Shop Manual...1798
  50 Disassembly and assembly...1798
    Related information on disassembly and assembly...1801
      How to read this manual...1801
      Coating materials list...1803
      Special tools list...1807
      Sketches of special tools...1812
    Engine and cooling system...1846
      Removal and installation of fuel supply pump assembly...1846
      Removal and installation of fuel injector assembly...1849
      Removal and installation of cylinder head assembly...1858
      Removal and installation of engine front oil seal assembly...1871
      Removal and installation of engine rear oil seal assembly...1874
      Removal and installation of cooling fan pump assembly...1879
      Removal and installation of cooling fan and fan motor assembly...1881
      Removal and installation of radiator assembly...1886
      Removal and installation of aftercooler assembly...1890
      Removal and installation of power train oil cooler assembly...1893
      Removal and installation of fuel tank assembly...1896
      Removal and installation of engine hood assembly...1900
    Power train...1902
      Removal and installation of engine and transmission assembly...1902
      Disconnection and connection of transmission and torque converter assembly from/to engine...1910
      Disassembly and assembly of transmission assembly...1912
      Disassembly and assembly of torque converter assembly...1951
      Removal and installation of tandem drive and final drive assembly...1963
      Disassembly and assembly of tandem drive assembly...1967
      Disassembly and assembly of final drive assembly...1973
    Steering system...1992
      Removal and installation of steering valve (Orbitrol) assembly...1992
      Disassembly and assembly of steering valve (Orbitrol)...1998
    Brake system...2009
      Disassembly and assembly of wheel brake assembly...2009
    Undercarriage and frame...2017
      Removal and installation of center hinge pin...2017
    Hydraulic system...2030
      Removal and installation of hydraulic tank, battery and frame assembly...2030
      Removal and installation of hydraulic tank assembly...2035
      Removal and installation of control valve assembly...2038
      Disassembly and assembly of control valve assembly...2044
      Disassembly and assembly of hydraulic cylinder assembly...2047
    Work equipment...2051
      Removal and installation of blade assembly...2051
      Disassembly and assembly of circle drawbar assembly...2053
      Removal and installation of circle rotation gear assembly...2056
      Disassembly and assembly of circle rotation gear assembly...2059
      Removal and installation of ripper assembly...2066
    Cab and its attachments...2067
      Removal and installation of operator's cab assembly...2067
      Removal and installation of floor frame assembly...2079
      Removal and installation of operator's cab glass (adhered window glass)...2083
      Removal and installation of air conditioner unit assembly...2093
    Electrical system...2099
      Removal and installation of engine controller assembly...2099
      Removal and installation of starting motor...2101
      Removal and installation of battery...2103
      Removal and installation of machine monitor assembly...2105
      Removal and installation of transmission controller assembly...2107
      Removal and installation of KOMTRAX terminal assembly (ORBCOMM)...2109
      Removal and installation of KOMTRAX terminal assembly (GPRS)...2111
  60 Maintenance standard...2114
    Engine and cooling system...2116
      Engine mount and transmission mount...2116
      Cooling system...2117
      Cooling fan motor...2118
    Power train system...2121
      Torque converter...2121
      Transmission...2124
      Transmission control valve...2133
      ECMV...2134
      Main relief valve and torque converter relief valve...2136
      Front axle...2137
      Final drive...2140
      Differential...2143
      Tandem drive...2145
    Brake system...2147
      Slack adjuster...2147
      Wheel brake...2148
      Parking brake...2149
    Undercarriage and frame...2150
      Frame...2150
    Hydraulic system...2151
      Main pump...2151
      Power train pump...2155
      Control valve...2157
      Hydraulic cylinder...2166
    Work equipment...2169
      Circle and drawbar...2169
      Blade...2171
      Lifter...2173
      Circle rotation gear...2174
  80 Appendix...2176
    Air conditioner...2178
      Precautions for refrigerant...2178
      Air conditioner components...2179
      Structure and function of refrigeration system...2181
      Overview of refrigeration system...2182
      Air conditioner unit...2183
      Compressor...2186
      Condenser...2187
      Receiver drier...2188
      Air conditioner control panel...2189
      Procedure for check and troubleshooting...2191
      Circuit diagram and layout of connector pins...2193
      System diagram...2195
      Detail of air conditioner unit...2197
      Parts and connectors layout...2199
      Testing air leakage (ducts)...2201
      Check with self-diagnosis (control panel display)...2203
      Testing temperature control...2204
      Testing Fresh/Recirc air changeover...2205
      Testing evaporator temperature sensor...2206
      Testing relays...2207
      Testing blower amp...2208
      Troubleshooting Chart 1...2209
      Troubleshooting Chart 2...2211
      Information in troubleshooting table...2213
      Troubleshooting for power supply system (Air conditioner does not operate)...2215
      Troubleshooting of compressor and refrigerant system (Air is not cooled)...2217
      Troubleshooting for blower motor system (Air does not come out or air flow is improper)...2221
      Troubleshooting for temperature control...2223
      Troubleshooting for FRESH/RECIRC air changeover...2225
      Troubleshooting with gauge pressure...2227
      Connection of service tool...2229
      Precautions for disconnecting and connecting air conditioner piping...2231
      Handling compressor oil...2233
  90 Diagrams and drawings...2236
    Hydraulic diagrams and drawings...2238
      Symbols used in hydraulic circuit diagrams...2238
      Hydraulic circuit diagram...2240
    Electrical diagrams and drawings...2242
      Symbols used in electric circuit diagrams...2242
      Electrical circuit diagram...2246
  Index...2255

Komatsu Motor Graders GD705, GD705A Workshop Service Repair Manuals