Complete workshop repair service manual with electrical wiring diagrams for Hitachi ZX470LC-5G Excavator. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

Hitachi ZX470LC-5G Excavator service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

FILE LIST:
TOJAC91-EN-00 - Hitachi ZX470LC-5G Hydraulic Excavator Technical Manual (Operational Principle).pdf
TTJAC91-EN-00 (attach to) - Hitachi ZX470LC-5G Hydraulic Excavator Electrical Circuit Diagram.pdf
TTJAC91-EN-00 (attach to) - Hitachi ZX470LC-5G Hydraulic Excavator Electrical Circuit Diagram (47T).pdf
TTJAC91-EN-00 - Hitachi ZX470LC-5G Hydraulic Excavator Technical Manual (Troubleshooting).pdf
WJAC91-EN-00 - Hitachi ZX470LC-5G Hydraulic Excavator Workshop Manual.pdf

TOTAL PAGES: 1,755
LANGUAGE: ENGLISH
FORMAT: PDF

EXCERPT:
SECTION 5 TROUBLESHOOTING
Group 6 Troubleshooting B
Troubleshooting B (Machine Diagnosis by Using Troubleshooting Symptom) Procedure
Refer to troubleshooting B procedures for diagnosis by using trouble symptom when no fault codes are displayed.
Diagnosis Procedure
The diagnosis procedures for the displayed fault codes are explained in this group.
Perform diagnosis by using MPDr. or the service menu of monitor first.
In case any fault code has not been displayed by diagnosis, perform inspection according to the procedures when diagnosing.
When the fault code is displayed, refer to the troubleshooting A group and diagnose.
On the front section pages of this group, there are the tables indicating the relationship between machine trouble symptoms and related parts which may cause such trouble if failed. Start the troubleshooting with more probable causes selected by referring to these tables.
NOTE: Harness end connector viewed from the open end side by the all connectors image shown in this section
...

TOJAC91-EN-00 - Hitachi ZX470LC-5G Hydraulic Excavator Technical Manual (Operational Principle)...2
  TOJAC91-EN-00...2
  INTRODUCTION...4
  Symbol and Abbreviation...6
  SECTION AND GROUP CONTENTS...8
  SECTION 1 GENERAL...10
    Group 1 Specifications...12
      Specifications...12
      Working Ranges...13
    Group 2 Component Layout...14
      Main Component...14
      Electrical System (Overview)...16
      Electrical System (Rear Tray)...17
      Electrical System (Switch Panel)...18
      Electrical System (Cab Behind Side)...19
      Isolation Switch (Optional)...21
      Engine...23
      Pump Device...24
      Control Valve...25
      Check Valve / Accumulator...27
      Signal Control Valve...27
      4-Spool Solenoid Valve Unit...30
      2-Spool Solenoid Valve Unit...30
      Layout of Attachment Spec. Parts (Hydraulic System)...31
    Group 3 Component Specifications...36
      Engine...36
      Engine Accessories...40
      Hydraulic Component...41
      Electrical Component...45
  SECTION 2 SYSTEM...48
    Group 1 Controller...50
      Outline...50
      CAN Circuit...51
    Group 2 Control System...54
      Outline...54
      Engine Control...57
      Pump Control...81
      Valve Control (Standard)...99
      Other Control...125
    Group 3 Hydraulic System...134
      Outline...134
      Pilot Circuit...135
      Main Circuit...149
      Breaker/Pulverizer/Crusher Circuit (Optional)...171
    Group 4 Electrical System...180
      Outline...180
      Main Circuit...181
      Electric Power Circuit (Key Switch: OFF)...183
      CAN Circuit...185
      Accessory Circuit...187
      Preheating Circuit (Key Switch: ON, START)...189
      Starting Circuit (Key Switch: START)...191
      Charging Circuit (Key Switch: ON)...195
      Surge Voltage Prevention Circuit...199
      Pilot Shut-Off Circuit (Key switch: ON)...201
      Engine Stop Circuit...203
      Monitor Circuit...206
      Security Circuit...207
      Radio Circuit...209
      Air Conditioner Circuit...209
      Accessory Circuit...212
      Work Light Circuit...213
      Wiper/Washer Circuit...215
      Cab Light Circuit...217
  SECTION 3 COMPONENT OPERATION...222
    Group 1 Pump Device...224
      Outline...224
      Main Pump...225
      Regulators...227
      Pilot Pump...235
      N Sensor (Engine Speed Sensor)...235
      Pump Delivery Pressure Sensor...235
      Pump Displacement Angle Sensor...235
    Group 2 Swing Device...236
      Outline...236
      Swing Reduction Gear...237
      Swing Motor...238
      Swing Parking Brake...239
      Valve Unit...241
    Group 3 Control Valve...244
      Outline...244
      Hydraulic Circuit...261
      Flow Combiner Valve...267
      Main Relief Valve...269
      Overload Relief Valve (with Make-Up Function)...273
      Boom Overload Relief Valve (Low Pressure)...279
      Regenerative Valve...281
      Anti-Drift Valve...285
      Flow Rate Control Valve...289
      Boom Lower Meter-In Cut Valve...297
      Bypass Shut-Out Valve...299
      Auxiliary Flow Combiner Valve...301
    Group 4 Pilot Valve...304
      Outline...304
      Operation (Front Attachment /Swing and Travel Pilot Valves)...306
      Operation (Auxiliary / Counterweight Removaland Installation Pilot Valve)...314
      Shockless Function (Only for Travel Pilot Valve)...319
    Group 5 Travel Device...320
      Outline...320
      Travel Reduction Gear...321
      Travel Motor...323
      Parking Brake...325
      Travel Brake Valve...327
      Overload Relief Valve...331
      Travel Mode Control...333
    Group 6 Signal Control Valve...338
      Outline...338
      Pilot Port...339
      Shuttle Valve...344
      Shockless Valve...347
      Pump 1 Flow Rate Control Valve, Pump 2 Flow Rate Control Valve...351
      Arm Flow Rate Control Valve Control Spool, Flow Combiner Valve Control Spool, Swing Parking Brake Release Spool...353
    Group 7 Others (Upperstructure)...354
      Pilot Shut-Off Solenoid Valve...354
      Solenoid Valve...356
      Fan Motor...359
      Fan Valve...360
      Pilot Relief Valve...363
      Shockless Valve...364
      Accumulator...365
      Distribution Valve...366
    Group 8 Others (Undercarriage)...370
      Swing Bearing...370
      Center Joint...371
      Track Adjuster...372
  SERVICE MANUAL REVISION REQUEST FORM...376
TTJAC91-EN-00 (attach to) - Hitachi ZX470LC-5G Hydraulic Excavator Electrical Circuit Diagram (47T)...378
  ZX470LC-5G ELECTRICAL DIAGRAM...378
  ZX470LC-5G CONNECTORS...379
  ZX470LC-5G CAB HARNESS...380
  ZX470LC-5G MAIN HARNESS...381
  ZX470LC-5G ENGINE HARNESS...382
  ZX470LC-5G OIL COOLER SUB HARNESS...383
  ZX470LC-5G CONTROL VALVE HARNESS...384
  ZX470LC-5G PUMP HARNESS...385
  ZX470LC-5G CAMERA HARNESS...386
  ZX470LC-5G FUSE BOX HARNESS...387
  ZX470LC-5G HYDRAULIC CIRCUIT DIAGRAM (STANDARD)...388
TTJAC91-EN-00 (attach to) - Hitachi ZX470LC-5G Hydraulic Excavator Electrical Circuit Diagram...389
  ZX470LC-5G ELECTRICAL DIAGRAM...389
  ZX470LC-5G CONNECTORS...390
  ZX470LC-5G CAB HARNESS...391
  ZX470LC-5G MAIN HARNESS...392
  ZX470LC-5G ENGINE HARNESS...393
  ZX470LC-5G OIL COOLER SUB HARNESS...394
  ZX470LC-5G CONTROL VALVE HARNESS...395
  ZX470LC-5G PUMP HARNESS...396
  ZX470LC-5G CAMERA HARNESS...397
  ZX470LC-5G FUSE BOX HARNESS...398
  ZX470LC-5G HYDRAULIC CIRCUIT DIAGRAM (STANDARD)...399
  AIR CONDITIONER CIRCUIT DIAGRAM...400
TTJAC91-EN-00 - Hitachi ZX470LC-5G Hydraulic Excavator Technical Manual (Troubleshooting)...401
  TTJAC91-EN-00...401
  INTRODUCTION...403
  Symbol and Abbreviation...405
  SAFETY...407
  SECTION AND GROUP CONTENTS...449
  SECTION 4 OPERATIONAL PERFORMANCE TEST...451
    Group 1 Introduction...453
      Operational Performance Tests...453
      Preparation for Performance Tests...454
    Group 2 Standard...455
      Operational Performance Standard Table...455
      Main Pump P-Q Diagram...459
      MPDR. Monitor Indicating Values (MC)...460
      MPDr. Monitor Indicating Values (ECF)...465
      Sensor Activating Range...466
    Group 3 Engine Test...467
      Engine Speed...467
      Engine Compression Pressure...470
      Valve Clearance...472
      Nozzle...476
      Injection Timing...478
      Lubricant Consumption...479
    Group 4 Machine Performance Test...481
      Travel Speed...481
      Mistrack Check...483
      Travel Motor Leakage...484
      Swing Speed...485
      Swing Function Drift Check...486
      Swing Motor Leakage...487
      Maximum Swingable Slant Angle...488
      Swing Bearing Play...490
      Hydraulic Cylinder Cycle Time...492
      Dig Function Drift Check...494
      Control Lever Operating Force...495
      Control Lever Stroke...496
      Boom Raise/Swing Combined Operation Check...497
    Group 5 Component Test...499
      Primary Pilot Pressure...499
      Secondary Pilot Pressure...501
      4-Spool Solenoid Valve Set Pressure...502
      2-Spool Solenoid Valve Set Pressure...503
      Main Pump Delivery Pressure...505
      Main Relief Valve Set Pressure...506
      Overload Relief Valve Set Pressure...512
      Main Pump Flow Rate Measurement...516
      Swing Motor Drainage...524
      Travel Motor Drainage...526
    Group 6 Adjustment...529
      Installation and Adjustment of Pump Displacement Angle Sensor...529
      Engine Speed Adjustment and Engine Learning...534
      Positions of Governor Lever and Fuel Cut Lever...536
  SECTION 5 TROUBLESHOOTING...541
    Group 1 Diagnosing Procedure...543
      Introduction...543
      Diagnosis Procedure...544
      Electric System Inspection...547
      Precautions for Inspection and Maintenance...548
      Instructions for Disconnecting Connectors...550
      Fuse Inspection...552
      Fusible Link Inspection...555
      Battery Voltage Check...556
      Alternator Check...557
      Continuity Check...558
      Voltage and Current Measurement...560
      Check by False Signal...567
      Test Harness...568
    Group 2 Monitor...571
      Outline...571
      Operating Procedures of Service Menu(Built-In Diagnosing System)...572
      Setting Menu...609
      Inspection of Hour Meter and Fuel Gauge...611
      Fuel Gauge and Coolant Temperature Gauge...612
    Group 3 e-Service...613
      Outline...613
      List of Operation Data...614
      Snapshot Data...618
      Communication System...619
    Group 4 Component Layout...621
      Main Component...621
      Electrical System (Overview)...623
      Electrical System (Rear Tray)...624
      Electrical System (Switch Panel)...625
      Electrical System (Cab Behind Side)...626
      Isolation Switch (Optional)...628
      Engine...630
      Pump Device...631
      Control Valve...632
      Check Valve / Accumulator...634
      Signal Control Valve...634
      4-Spool Solenoid Valve Unit...637
      2-Spool Solenoid Valve Unit...637
      Layout of Attachment Spec. Parts (Hydraulic System)...638
      Layout of Control Valve...642
      Pilot Port (Signal Control Valve)...658
    Group 5 Troubleshooting A...663
      Troubleshooting A (Base Machine Diagnosis by Using Fault Codes) Procedure...663
      MC Fault Code List...665
      ECF Fault Code List...685
      Monitor Controller (Monitor) Fault Code List...686
      Monitor Controller (Information) Fault Code List...687
      Air Conditioner Controller Fault Code List...690
      Communication Terminal Fault Code List...691
      MC Fault Codes 11000 to 11002...693
      MC Fault Code 11003...694
      ECF Fault Code 16603...694
      MC Fault Codes 11006, 11007,11009...697
      ECF Fault Code 16604...697
      Monitor Controller (Monitor) Fault Codes 13002, 13003, 13005...697
      CAN0 Harness Check...698
      MC Fault Codes 11008, 11010...701
      Monitor Controller (Monitor) Fault Codes 13004, 13006, 13007...701
      CAN1 Harness Check...702
      MC Fault Code 11101...705
      MC Fault Codes 11200, 11202...706
      MC Fault Codes 11301, 11302...707
      MC Fault Code 11303...708
      MC Fault Codes 11304, 11325...709
      MC Fault Code 11405...710
      MC Fault Code 11408...711
      MC Fault Code 11428...712
      MC Fault Code 11901...713
      MC Fault Code 11940...714
      MC Fault Code 11941...715
      MC Fault Codes 11942, 11944...716
      MC Fault Code 11945...717
      MC Fault Code 11948...718
      MC Fault Code 11950...719
      MC Fault Code 11951...720
      MC Fault Code 11953...721
      MC Fault Codes 11955, 11956...722
      MC Fault Codes 11978, 11979...723
      MC Fault Code 11980...724
      MC Fault Code 11989...725
      MC Fault Codes 11995, 11997...726
      MC Fault Code 11998...727
      MC Fault Codes 20062...728
      ECF Fault Codes 16600 to 16602...729
      ECF Fault Code 16605...730
      ECF Fault Code 16606...731
      Air Conditioner Controller Fault Codes 11 to 22...732
      Air Conditioner Controller Fault Codes 43 to 92...733
      Monitor Controller (Information) Fault Codes 13304, 13310...734
      Monitor Controller (Information) Fault Code 13311...735
      Monitor Controller (Information) Fault Codes 20100 to 20114...736
    Group 6 Troubleshooting B...737
      Troubleshooting B (Machine Diagnosis by Using Troubleshooting Symptom) Procedure...737
      Relationship Between Machine Trouble Symptoms and Related Parts...739
      Correlation Between Trouble Symptoms and Part Failures...763
      Engine System Troubleshooting...782
      All Actuator System Troubleshooting...795
      Front Attachment System Troubleshooting...800
      Swing System Troubleshooting...813
      Travel System Troubleshooting...816
      Other System Troubleshooting...820
      Exchange Insp...827
      How to Lowering Boom in Case of Emergency and When Engine Stops...830
    Group 7 Air Conditioner...831
      Outline...831
      Functions of Main Parts...834
      Troubleshooting...839
      Air Conditioner Controller Fault Code List...840
      Air Conditioner Controller Fault Codes 11 to 22...841
      Air Conditioner Controller Fault Codes 43 to 92...842
      Work after Replacing Components...864
      Refill Compressor Oil...865
      Charge Air Conditioner with Refrigerant...866
      Hose and Pipe Tightening Torque...874
  SERVICE MANUAL REVISION REQUEST FORM...877
  The Attached Diagram List...878
WJAC91-EN-00 - Hitachi ZX470LC-5G Hydraulic Excavator Workshop Manual...879
  WJAC91-E-00...879
  INTRODUCTION...881
  SYMBOL AND ABBREVIATION...883
  SAFETY...885
  SECTION AND GROUP CONTENTS...927
  SECTION 1 GENERAL...929
    Group 1 Precautions for Disassembling and Assembling...931
      Precautions for Disassembling and Assembling...931
    Group 2 Tightening...937
      Tightening Bolts and Nuts...937
      Piping Joint...940
    Group 3 Painting...945
      Painting Specification...945
      Final Painted Color...945
    Group 4 Bleeding Air...947
      Bleeding Air from Hydraulic Oil Tank...947
      Bleeding Air from Hydraulic System...948
      Bleeding Air from Fuel System...949
      Bleeding Air from Radiator...950
    Group 5 Pressure Release Procedure...951
      Hydraulic Circuit Pressure Release Procedure...951
    Group 6 Preparation...953
      Preparation before Inspection and Maintenance...953
  SECTION 2 MAINTENANCE STANDARD...957
    Group 1 Upperstructure...959
      Main Pump...959
      Swing Motor...961
    Group 2 Undercarriage...963
      Travel Motor...963
      Sprocket...964
      Center Joint...965
      Front Idler...967
      Upper Roller...969
      Lower Roller...970
      Track...971
    Group 3 Front Attachment...975
      Remove and Install Bushing...975
      Pin and Bushing...977
      Side Cutter...979
      Point...979
      Standard Dimensions for Arm and Bucket Connection...980
      Standard Dimensions for Arm and Boom Connection...982
      Cylinder...983
  SECTION 3 UPPERSTRUCTURE...987
    Group 1 Cab...989
      Removal and Installation of Cab...989
      Dimensions of Cab Glass (Standard Cab)...1005
      Dimensions of Cab Glass (H Cab)...1024
    Group 2 Counterweight...1027
      Removal and Installation of Counterweight...1031
    Group 3 Main Frame...1031
      Removal and Installation of Main Frame...1031
    Group 4 Engine...1039
      Removal and Installation of Engine...1039
    Group 5 Radiator Assembly...1081
      Replacement of Radiator and Oil Cooler...1081
    Group 6 Hydraulic Oil Tank...1105
      Removal and Installation of Hydraulic Oil Tank...1105
    Group 7 Fuel Tank...1123
      Removal and Installation of Fuel Tank...1123
    Group 8 Pump Device...1141
      Removal and Installation of Pump Device...1141
      Disassembly of Main Pump...1165
      Assembly of Main Pump...1172
      Disassembly of Regulator for Main Pump...1181
      Assembly of Regulator for Main Pump...1183
      Structure of Pilot Pump...1187
      Structure of A Sensor...1189
    Group 9 Control Valve...1191
      Removal and Installation of Control Valve...1191
      Disassembly and Assembly of Valve Unit...1217
      Disassembly of Control Valve (4-Spool Side)...1223
      Assembly of Control Valve (4-Spool Side)...1231
      Disassembly of Control Valve (5-Spool Side)...1239
      Assembly of Control Valve (5-Spool Side)...1246
    Group 10 Swing Device...1253
      Removal and Installation of Swing Device...1253
      Disassembly of Swing Device...1257
      Assembly of Swing Device...1263
      Disassembly of Swing Motor...1269
      Assembly of Swing Motor...1272
    Group 11 Pilot Valve...1277
      Removal and Installation of Pilot Valve (Left)...1277
      Removal and Installation of Pilot Valve (Right)...1283
      Removal and Installation of Travel Pilot Valve...1291
      Disassembly of Pilot Valves (Right and Left)...1295
      Assembly of Pilot Valves (Right and Left)...1298
      Disassembly of Travel Pilot Valve...1301
      Assembly of Travel Pilot Valve...1305
    Group 12 Solenoid Valve...1311
      Removal and Installation of Pilot Shut-Off Solenoid Valve...1311
      Removal and Installation of 4-Spool Solenoid Valve Unit...1315
      Removal and Installation of 2-Spool Solenoid Valve Unit...1319
      Disassembly of Pilot Shut-Off Solenoid Valve...1323
      Assembly of Pilot Shut-Off Solenoid Valve...1325
      Structure of 4-Spool Solenoid Valve Unit...1327
      Structure of 2-Spool Solenoid Valve Unit...1329
    Group 13 Signal Control Valve...1331
      Removal and Installation of Signal Control Valve...1331
      Structure of Signal Control Valve...1337
    Group 14 Shockless Valve...1339
      Removal and Installation of Shockless Valve...1339
      Structure of Shockless Valve...1341
  SECTION 4 UNDERCARRIAGE...1345
    Group 1 Swing Bearing...1347
      Removal and Installation of Swing Bearing...1347
      Disassembly of Swing Bearing...1351
      Assembly of Swing Bearing...1354
    Group 2 Travel Device...1357
      Removal and Installation of Travel Device...1357
      Disassembly of Travel Device...1361
      Assembly of Travel Device...1368
      Disassembly of Travel Motor...1377
      Assembly of Travel Motor...1381
      Disassembly of Brake Valve...1387
      Assembly of Brake Valve...1390
    Group 3 Center Joint...1395
      Removal and Installation of Center Joint...1395
      Disassembly of Center Joint...1399
      Assembly of Center Joint...1401
      Replacement of Body and Spindle...1404
    Group 4 Track Adjuster...1405
      Removal and Installation of Track Adjuster...1405
      Disassembly of Track Adjuster...1407
      Assembly of Track Adjuster...1412
    Group 5 Front Idler...1417
      Removal and Installation of Front Idler...1417
      Disassembly of Front Idler...1419
      Assembly of Front Idler...1422
    Group 6 Upper and Lower Rollers...1427
      Removal and Installation of Upper Roller...1427
      Removal and Installation of Lower Roller...1431
      Disassembly of Lower Roller...1435
      Assembly of Lower Roller...1437
    Group 7 Track...1443
      Removal and Installation of Track...1443
  SECTION 5 FRONT ATTACHMENT...1459
    Group 1 Front Attachment...1461
      Removal and Installation of Front Attachment...1461
      Removal and Installation of Bushing...1469
    Group 2 Cylinder...1471
      Removal and Installation of Boom Cylinder...1471
      Removal and Installation of Arm Cylinder...1475
      Removal and Installation of Bucket Cylinder...1479
      Disassembly of Boom Cylinder...1483
      Assembly of Boom Cylinder...1486
      Disassembly of Arm Cylinder...1489
      Assembly of Arm Cylinder...1492
      Disassembly of Bucket Cylinder...1495
      Assembly of Bucket Cylinder...1498
  SECTION 6 ENGINE AND ACCESSORY...1503
    General Information...1505
      General Repair Instruction...1505
      Illustration Arrows...1506
      Abbreviations Charts...1507
      Nut and Bolt Angular Tightening Method...1508
      Standard Bolt Torque Specifications...1510
      Recommended Thread Locking Agents...1512
      Main Data and Specification...1513
      Performance Curve...1515
      Engine External Drawing...1516
      Service Standard...1517
      Torque Specifications...1523
      Special Tools...1531
      Troubleshooting...1533
      Lubricant Application...1543
      Sealant Application...1543
    Service Information...1545
      Identification...1545
      Lubrication System...1546
      Fuel System...1546
      Cooling System...1550
      Valve Clearance Adjustment...1551
      Compression Pressure Measurement...1553
      Recommended Lubricants...1554
      Engine Oil Viscosity Chart...1554
    Engine Mechanical...1555
      Service Precautions...1556
      General Description...1556
      Fan Center...1558
      Turbocharger...1561
      Exhaust Manifold...1563
      Inlet Manifold...1564
      Water Pump...1567
      Alternator...1569
      Oil Cooler...1572
      Injection Pump...1574
      Coupling Assembly...1578
      Cylinder Head...1581
      Rocker Arm and Shaft Assembly...1601
      Camshaft...1606
      Timing Gears...1611
      Flywheel Housing...1620
      Oil Pan...1623
      Piston...1627
      Crankshaft...1642
      Crank Pulley...1653
      Flywheel...1656
      Cylinder Block...1658
    Engine Cooling...1667
      Service Precautions...1667
      General Description...1668
      Water Pump...1669
      Thermostat...1674
    Engine Fuel...1677
      Service Precautions...1677
      General Description...1678
      Fuel Filter...1681
      Injection Nozzle Holder...1683
      Injection Pump...1689
      Injection Nozzle Holder-Tow-Stage Injection Type...1693
    Starting and Charging...1705
      Service Precautions...1705
      Alternator...1706
      Starter Motor...1715
    Engine Lubrication...1727
      Service Precaution...1727
      General Description...1728
      Oil Pump...1730
      Oil Cooler...1738
    Engine Induction...1743
      Service Precaution...1743
      Turbocharger...1744
  SERVICE MANUAL REVISION REQUEST FORM...1755