Komatsu WA270-8 Wheel Loader Shop Manual SEN06600-14 PDF

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Komatsu WA270-8 Wheel Loader Shop Manual SEN06600-14 – PDF DOWNLOAD

FILE DETAILS:

Komatsu WA270-8 Wheel Loader Shop Manual SEN06600-14 – PDF DOWNLOAD 

Language : English
Pages : 3664
Downloadable : Yes
File Type : PDF

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TABLE OF CONTENTS:

Komatsu WA270-8 Wheel Loader Shop Manual SEN06600-14 – PDF DOWNLOAD 

SERIAL NUMBERS 83001 and up

Cover 1
00 Index and Foreword 3
Index 4
Abbreviation List 25
Foreword, Safety, Basic Information 31
How to Read the Shop Manual 31
Safety Notice for Operation 33
Precautions to Prevent Fire 41
Procedures If Fire Occurs 43
Precautions for Disposing of Waste Materials 44
Procedures for Exhaust Gas Regulations 45
Precautions for DEF 46
General Character and Precautions for Handling 46
Precautions for Adding 46
Precautions for Storage 46
Precautions for Fire Hazard and Leakage 46
Other Precautions 46
Store DEF 47
Precautions When You Handle Hydraulic Equipment 48
Precautions When You Disconnect and Connect Pipings 51
Precautions When You Handle Electrical Equipment 58
Precautions When You Handle Fuel System Equipment 60
Precautions When You Handle Intake System Equipment 61
Practical Use of KOMTRAX 62
Disconnect and Connect Push-Pull Type Coupler 63
How to Disconnect and Connect Type 1 Push-Pull Type Coupler 63
How to Disconnect and Connect Type 2 Push-Pull Type Coupler 64
How to Disconnect and Connect Type 3 Push-Pull Type Coupler 65
Precautions for Disconnection and Connection of Connectors 67
How to Disconnect and Connect Deutsch Connector 71
How to Disconnect and Connect Slide Lock Type Connector 72
How to Disconnect and Connect Connector with Lock to Pull 74
How to Disconnect and Connect Connector with Lock to Push 75
How to Disconnect and Connect Connector with Housing to Rotate 77
How to Read the Codes for Electric Cable 78
Explanation of Terms for Maintenance Standard 82
Standard Tightening Torque Table 85
Conversion Table 92
01 Specifications 97
Table of Contents 98
Abbreviation List 99
Specifications 105
Specification Drawing 105
Specification Drawing: WA270-8 105
Specifications 107
Specifications: WA270-8 107
Weight Table 112
Weight Table: WA270-8 112
Table of Fuel, Coolant, and Lubricants 114
10 Structure and Function 117
Table of Contents 118
Abbreviation List 122
Urea SCR System 128
Layout Drawing of Urea SCR System 128
Urea SCR System Diagram 130
Function of Urea SCR System 131
Function of DEF System 131
Inducement Strategy 134
Component Parts of Urea SCR System 148
DEF Mixing Tube 148
SCR Assembly 149
DEF Tank 151
DEF Pump 153
DEF Injector 154
DEF Hose 155
DEF Tank Heating Valve 156
Boot-up System 157
Layout Drawing of Boot-up System (Machine with KOMTRAX Terminal) 157
Layout Drawing of Boot-up System (Machine with Gateway Function Controller) 159
System Operating Lamp System 161
System Diagram of System Operating Lamp System (Machine with KOMTRAX Terminal) 161
System Diagram of System Operating Lamp System (Machine with Gateway Function Controller) 161
Function of System Operating Lamp System (Machine with KOMTRAX Terminal) 161
Function of System Operating Lamp System (Machine with Gateway Function Controller) 162
Battery Disconnect Switch 164
Function of Battery Disconnect Switch 164
Preheating System 165
System Diagram of Preheating System 165
Function of Automatic Preheating System 165
Operation of Automatic Preheating System 165
Function of Manual Preheating System 166
Operation of Manual Preheating System 166
Engine System 167
Layout Drawing of Engine System 167
Function of Engine System 169
Engine Control System 170
System Diagram of Engine Control System (Machine with KOMTRAX Terminal) 170
System Diagram of Engine Control System (Machine with Gateway Function Controller) 172
Function of Engine Control System (Machine with KOMTRAX Terminal) 174
Function of Engine Control System (Machine with Gateway Function Controller) 175
Operation of Engine Control System (Machine with KOMTRAX Terminal) 178
Operation of Engine Control System (Machine with Gateway Function Controller) 180
Automatic Idle Stop System 182
Function of Automatic Idle Stop System 182
Component Parts of Engine System 183
Damper 183
VGT 185
EGR System 189
EGR Valve 191
EGR Cooler 193
KCCV System 195
KCCV Ventilator 197
KDPF 199
Cooling System 203
Layout Drawing of Cooling System 203
Specifications of Cooling System 204
Cooling Fan Control System 205
System Diagram of Cooling Fan Control System 205
Function of Cooling Fan Control System 205
Component Parts of Cooling System 210
Cooling Fan Motor 210
Control System 223
Layout Drawing of Control System (Machine with KOMTRAX Terminal) 223
Layout Drawing of Control System (Machine with Gateway Function Controller) 225
Machine Monitor System 227
System Diagram of Machine Monitor System (Machine with KOMTRAX Terminal) 227
System Diagram of Machine Monitor System (Machine with Gateway Function Controller) 228
Function of Machine Monitor System 228
Rearview Monitor System 230
System Diagram of Rearview Monitor System 230
Function of Rearview Monitor System 230
KOMTRAX System 231
KOMTRAX System Diagram (Machine with KOMTRAX Terminal) 231
System Diagram of KOMTRAX System (Machine with Gateway Function Controller) 231
Function of KOMTRAX System 232
Component Parts of Control System 233
Machine Monitor 233
Switch Panel 251
Rearview Monitor 252
Rearview Camera 254
KOMTRAX Terminal 255
Gateway Function Controller 257
Communication Terminal 260
Monitor Controller 262
HST Controller 267
CAN Terminating Resistor 272
Engine Controller 273
Accelerator Pedal 280
Hydraulic System 282
Layout Drawing of Hydraulic System 282
CLSS 283
Structure of CLSS 283
Function of CLSS 284
Component Parts of Hydraulic System 286
Hydraulic Tank 286
Hydraulic Oil Filter 289
Steering and Work Equipment Pump 290
Brake and Cooling Fan Pump and Transfer Lubrication Pump 303
Control Valve 304
Power Train System 334
Layout Drawing of Power Train System 334
Operation of Power Train System 336
Directional Selector Switch Control Function 337
HST Control System 339
System Diagram of HST Control System 339
Engine Overrun Prevention Function 340
Neutralizer Function 340
HST Charge System 341
System Diagram of HST Charge System 341
Function of HST Charge System 341
HST Pump Control System 342
System Diagram of HST Pump Control System 342
Directional Selection Function 342
Absorbing Torque Control Function 343
Inching Control Function 343
Travel Speed Adjustment Function (at Low Speed) 343
HST Controller Gear Shift Control Function 344
Gear Shift Function 344
Gear Shift Display Function 346
Travel Speed Adjustment Function 346
Transfer Clutch Control Function 347
HST System Protection Function 348
Transfer Protection Function 348
Direction Protection Function 348
HST Motor 1 Overrun Prevention Function 1 (Machine with KOMTRAX Terminal) 348
HST Motor 1 Overrun Prevention Function 1 (Machine with Gateway Function Controller) 349
HST Motor 1 Overrun Prevention Function 2 351
Travel Speed Limitation Function (Machine with KOMTRAX Terminal) 351
Travel Speed Limitation Function Machine with Gateway Function Controller) 352
Maximum Speed Low Fuel Consumption Control 353
Function of Maximum Speed Low Fuel Consumption Control 353
Komatsu Traction Control System (KTCS) 356
Komatsu Traction Control System (KTCS) Diagram 356
Function of Komatsu Traction Control System (KTCS) 356
Component Parts of Power Train System 362
Drive Shaft 362
HST Pump 364
HST Charge Pump 377
HST Motor 379
Transfer 385
Axle 393
Torque Proportioning Differential 395
Limited Slip Differential 399
Final Drive 403
Combination Switch 405
Work Equipment System 409
Layout Drawing of Work Equipment System 409
Work Equipment Control System 411
Work Equipment Lever Operation Function 411
PZ Auto Tilt-in Compensation Control Function 411
Work Equipment Lock System 412
Work Equipment Lock System Diagram (Applicable Machine: 83001 to 86599) 412
Work Equipment Lock System Diagram (Applicable Machine: 86600 and Up) 412
Function of Work Equipment Lock System 413
Bucket Positioner System 414
Bucket Positioner System Diagram 414
Function of Bucket Positioner System 414
Operation of Bucket Positioner System 416
Fork Positioner System 418
Fork Positioner System Diagram 418
Function of Fork Positioner System 418
Operation of Fork Positioner System 419
Remote Positioner System 422
Remote Boom Positioner System Diagram 422
Function of Remote Boom Positioner System 422
ECSS 425
ECSS Diagram 425
Function of ECSS 425
Operation of ECSS 425
Component Parts of Work Equipment System 427
Self-Pressure Reducing Valve 427
Work Equipment Lock Solenoid Valve 432
Pilot Circuit Accumulator 433
ECSS Circuit Accumulator 434
Multifunction Mono-Lever 435
Multifunction Mono-Lever PPC Valve 437
Steering System 442
Layout Drawing of Steering System 442
Steering Column 443
Structure of Steering Column 443
Component Parts of Steering System 444
Priority Valve 444
Orbitrol Valve 447
Cushion Valve 452
2-Way Restrictor Valve 454
Secondary Steering Valve 455
Brake System 458
Layout Drawing of Brake System 458
Parking Brake Control System 460
System Diagram of Parking Brake Control System 460
Operation of Parking Brake Control System 460
Component Parts of Brake System 464
Brake Circuit Accumulator Charge Valve 464
Parking Brake Solenoid Valve 468
Brake Circuit Accumulator 470
Brake Valve 472
Slack Adjuster 475
Brake 477
Parking Brake 480
Auto-Greasing System 482
Layout Drawing of Auto-Greasing System 482
Specifications of Auto-Greasing System 484
Function of Auto-Greasing System 486
Auto-Greasing System 487
Auto-Greasing Pump 487
Undercarriage and Frame 488
Frame, Axle Mount and Center Hinge Pin 488
Structure of Frame, Axle Mount and Center Hinge Pin 488
Function of Frame, Axle Mount and Center Hinge Pin 491
Tires 493
Features of Radial Tire When Compared with Bias Tire 493
Structure of Radial Tire 493
Function of Radial Tire 494
Structure of Bias Tire 494
Function of Bias Tire 494
Work Equipment 495
Structure of Work Equipment 495
Structure of Bucket 496
CAB Related Parts 497
ROPS CAB 497
Structure of ROPS CAB (Machine with KOMTRAX Terminal) 497
Structure of ROPS CAB (Machine with Gateway Function Controller) 498
Function of ROPS CAB 498
CAB Mount 499
Structure of CAB Mount 499
Function of CAB Mount 499
20 Standard Value Table 501
Table of Contents 502
Abbreviation List 503
Standard Value Table for Engine 509
Standard Value Table for Engine: WA270-8 509
Standard Value Table for Machine 514
Standard Value Table for Machine: WA270-8 514
Machine Posture and Procedures to Measure Performance 527
30 Testing and Adjusting 531
Table of Contents 532
Precautions Before Work 536
Abbreviation List 537
Related Information on Testing and Adjusting 543
Differences In Machine Monitor Symbols 543
Tools for Testing and Adjusting 544
Sketch of Tools for Testing and Adjusting 553
Engine and Cooling System 554
Examine Engine Speed 554
How to Examine Engine Speed 554
Examine Boost Pressure 557
How to Examine Boost Pressure on Machine Monitor 557
How to Examine Boost Pressure by Testing Tool 558
Examine Exhaust Gas Temperature 560
How to Examine Exhaust Gas Temperature 560
Examine Exhaust Gas Color 562
How to Examine Exhaust Gas Color with the Handy Smoke Checker 562
How to Examine Exhaust Gas Color with Smoke Meter 564
Examine Mass Air Flow and Temperature Sensor 566
How to Examine Mass Air Flow and Temperature Sensor 566
Examine and Adjust Valve Clearance 568
How to Examine Valve Clearance 568
How to Adjust Valve Clearance 569
Examine Compression Pressure 570
How to Examine Compression Pressure 570
Examine Blowby Pressure 575
How to Examine Blowby Pressure 575
Examine Engine Oil Pressure 578
How to Examine Engine Oil Pressure 578
Examine EGR Valve and VGT Oil Pressure 580
How to Examine EGR Valve and VGT Oil Pressure 580
Examine Fuel Pressure 582
How to Examine Fuel Pressure 583
Examine Fuel Discharge, Return and Leakage 588
How to Examine Fuel Discharge, Return, and Leakage 589
Bleed Air from Fuel System 595
How to Bleed Air from Fuel System 595
Examine Fuel Circuit for Leakage 597
How to Examine Fuel System for Leakage 597
Handle Cylinder Cut-out Mode Operation 599
Handle No-Injection Cranking Operation 600
Examine KDPF, SCR and Muffler Stack for Looseness and Damage 601
How to Examine KDPF, SCR and Muffler Stack for Looseness and Damage 601
Examine Installed Condition of Cylinder Heads and Manifolds 602
How to Examine Installed Condition of Cylinder Heads and Manifolds 602
Examine Engine Piping for Damage and Looseness 603
How to Examine Engine Piping for Damage and Looseness 603
Examine and Adjust Air Conditioner Compressor Belt Tension 604
How to Examine Air Conditioner Compressor Belt 604
How to Adjust Air Conditioner Compressor Belt 604
Examine Alternator Belt 606
How to Examine Alternator Belt 606
Examine Automatic Tensioner 608
How to Examine Automatic Tensioner 608
Write Correction for Ash in Soot Accumulation to Engine Controller 611
How to Write Correction for Ash in Soot Accumulation to Engine Controller 611
Examine SCR Related Functions 612
Examine DEF Pump Raised Pressure 616
Examine Injection Volume from DEF Injector 619
Examine DEF Line Heater Relay 1 624
Examine DEF Line Heater Relay 2 628
Examine DEF Pump Heater Relay 632
Examine DEF Tank Heater Valve 636
Examine SCR Denitration Efficiency 640
Clean DEF Tank 644
How to Clean DEF Tank 644
Clean DEF Pump 648
How to Clean DEF Pump 648
Power Train 654
Examine and Adjust HST Oil Pressure 654
How to Examine HST Oil Pressure 654
How to Adjust HST Oil Pressure 656
Examine the Control Pressure of Transfer Clutch 658
How to Examine the Control Pressure of Transfer Clutch 658
Examine Drive Shaft for Looseness, Backlash, and Damage 660
How to Examine Drive Shaft for Looseness, Backlash, and Damage 660
Steering System 661
Examine Steering Wheel 661
How to Examine Steering Wheel 661
Examine and Adjust Steering Circuit Oil Pressure 663
How to Examine Steering Circuit Oil Pressure with the Machine Monitor 663
How to Examine Steering Circuit Pressure with Test Tools 664
How to Adjust Steering Circuit Oil Pressure 664
Bleed Air from Steering Cylinder Circuit 666
How to Bleed Air from Steering Cylinder Circuit 666
Brake System 667
Release Remained Pressure in Brake Accumulator Circuit 667
How to Release Remained Pressure in Brake Accumulator Circuit 667
Examine Wheel Brake Oil Pressure 668
How to Examine Wheel Brake Oil Pressure 668
Examine and Adjust Brake Accumulator Charge Pressure 670
How to Examine Brake Accumulator Charge Pressure 670
How to Adjust Brake Accumulator Charge Pressure 671
Bleed Air from Brake Circuit 672
How to Bleed Air from Brake Circuit 672
Examine Brake Performance 674
How to Examine Brake Performance 674
Examine Brake Pedal 675
How to Examine Brake Pedal 675
Examine Pressure Decrease of Wheel Brake 676
How to Examine Pressure Decrease of Wheel Brake 677
Examine Wear of Wheel Brake Disc 679
How to Examine Wear of Wheel Brake Disc 679
Examine Parking Brake Oil Pressure 681
How to Examine Parking Brake Oil Pressure 681
Examine Parking Brake Performance 683
How to Examine Parking Brake Performance 683
Release Parking Brake Manually 684
How to Release Parking Brake Manually 684
Examine Wear Volume of Parking Brake Disc 685
How to Examine Wear Quantity of Parking Brake Disc 685
Hydraulic System 686
Release Remained Pressure from Work Equipment Circuit 686
How to Release Remained Pressure from Work Equipment Circuit 686
Examine and Adjust Work Equipment Oil Pressure 688
How to Examine Work Equipment Oil Pressure 688
How to Adjust Work Equipment Oil Pressure 692
Examine and Adjust Work Equipment PPC Oil Pressure 694
How to Examine Work Equipment PPC Oil Pressure 694
How to Adjust Work Equipment PPC Oil Pressure 696
Bleed Air from Work Equipment Circuit 698
How to Bleed Air from Work Equipment Circuit 698
Examine Cooling Fan Speed 700
How to Examine Cooling Fan Speed 700
Examine Cooling Fan Circuit Oil Pressure 701
How to Examine Cooling Fan Circuit Oil Pressure 701
Bleed Air from Cooling Fan Circuit 704
How to Bleed Air from Cooling Fan Circuit 704
Examine ECSS Accumulator Nitrogen Gas Pressure and Charge Accumulator with Nitrogen Gas 706
How to Examine ECSS Accumulator Nitrogen Gas Pressure 706
How to Charge ECSS Accumulator with Nitrogen Gas 708
Work Equipment 712
Examine and Adjust Bucket Positioner 712
How to Examine Bucket Positioner 712
How to Adjust Bucket Positioner 712
Examine and Adjust Boom Potentiometer Lever 714
How to Examine Boom Potentiometer Lever 714
How to Adjust Boom Potentiometer Lever 714
CAB Related Parts 715
Examine Directional Lever 715
How to Examine Directional Lever 715
Examine Multifunction Mono-Lever 716
How to Examine Multifunction Mono-Lever 716
Examine Accelerator Pedal 718
How to Examine Accelerator Pedal 718
Adjust Play of Operator Seat 720
How to Adjust Play of Operator Seat 720
Electrical System 721
Set and Adjust Each Equipment 721
Set and Operate Machine Monitor 725
Operator Mode 729
Function to Show Technician Identification Status Screen 729
Function to Show Operator Identification Input Screen 729
Examine Function by LCD (Liquid Crystal Display) 730
Examine Function of Service Meter and Odometer 731
How to Set Usage Limitation and Change Maintenance Password 731
Service Mode 735
How to Operate Service Mode 735
How to See Pre-defined Monitoring Information 738
How to Examine Self-Define Monitor Information 745
Abnormality Record Menu 757
How to See Maintenance Record 762
Maintenance Mode Setting 764
How to Set Phone Number Entry 769
Default Menu 771
Diagnostic Tests Menu 786
Adjustment Menu 797
No-Injection Cranking Operation 831
KOMTRAX Settings Menu 833
How to Show Service Message 838
How to Start Up KOMTRAX Terminal (Machine with KOMTRAX Terminal) 840
How to Stop Use of KOMTRAX Terminal (Machine with KOMTRAX Terminal) 844
How to Start Up KOMTRAX System (Machine with Gateway Function Controller) 846
How to Stop Use of KOMTRAX System (Machine with Gateway Function Controller) 852
Adjust Rearview Camera Angle 854
How to Adjust Rearview Camera Angle 854
Set Region of Bluetooth(R) Compatible Radio 856
How to Set Region of Bluetooth(R) Compatible Radio 856
Handle Voltage Circuit of Engine Controller 858
Handle Battery Disconnect Switch (Machine with KOMTRAX Terminal) 859
Handle Battery Disconnect Switch (Machine with Gateway Function Controller) 860
Examine Diodes 861
How to Examine Diodes by Digital Tester 861
How to Examine Diodes by Analog Tester 861
Auto-Greasing Device 862
Bleed the Air in Auto-Greasing System 862
How to Bleed the Air in Auto-Greasing System 862
Change Lubrication Time and Lubrication Interval 865
How to Change Lubrication Time and Lubrication Interval 866
Pm Clinic 868
Pm Clinic Service 868
Pm Clinic Check Sheet: WA270-8 870
40 Troubleshooting 879
Table of Contents 880
Precautions Before Work 893
Abbreviation List 894
Related Information to Troubleshooting 900
General Troubleshooting Points 900
Troubleshooting Points for Urea SCR System 901
Sequence of Events in Troubleshooting 915
Checks Before Troubleshooting 917
Inspection Procedure Before Troubleshooting 919
Walk-Around Check 919
Test in Accordance with Testing Procedure 921
Examine Fuel Level and Type 921
Examine for Impure Ingredient in Fuel 921
Examine DEF Level and Type 922
Examine Fuel Prefilter 922
Examine Fuel Main Filter 924
Examine Engine Oil Level (Oil Quantity in Oil Pan) and Type 925
Examine Coolant Level (Reservoir Tank) 926
Examine Air Cleaner Clogging 927
Clean Outer Element 927
Replace Element 929
Examine Hydraulic Oil Level 931
Examine Hydraulic Oil Strainer 931
Examine Hydraulic Oil Filter 934
Examine the Oil Level in the Transfer Case 934
Examine Oil Level in Front Axle Case 936
Examine Oil Level in Rear Axle Case 937
Bleed Air from Fuel System 937
Bleed Air from Hydraulic System 937
How to Examine Electric Equipment 938
Preparation for Troubleshooting of Electrical System 943
Procedure for Troubleshooting 952
Symptom and Troubleshooting Numbers 954
Information Shown in Troubleshooting Table 958
How to Diagnose Open Circuit of Hydraulic Pressure Sensor System Wiring Harness 960
Connector List and Layout (Machine with KOMTRAX Terminal) 963
Connector List and Layout (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) 983
Connector List and Layout (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) 1004
Connector Contact Connection Table 1025
T-Branch Box and T-Branch Adapter Table 1065
Fuse Location Table (Machine with KOMTRAX Terminal) 1071
Fuse Location Table (Machine with Gateway Function Controller) 1074
Precautions When You Clean and Replace KDPF (KCSF and KDOC) 1077
Prepare Troubleshoot Machine Monitor 1081
Procedure to Make Harness Checker on Machine Monitor LCD Unit 1083
Prepare Short Circuit Electrical Connector (For Failure Codes [CA1883] and [CA3135]) 1089
Failure Code Table 1091
Troubleshooting by Failure Code (Display of Code) 1112
Failure Code [2F00MA] 1112
Failure Code [2F00MB] 1115
Failure Code [2G42ZG] 1117
Failure Code [2G43ZG] 1119
Failure Code [6091NX] 1121
Failure Code [7RHYKA] 1123
Failure Code [7RHYKB] 1125
Failure Code [7RHYKY] 1127
Failure Code [879AKA] 1129
Failure Code [879AKB] 1131
Failure Code [879BKA] 1133
Failure Code [879BKB] 1135
Failure Code [879CKA] 1137
Failure Code [879CKB] 1139
Failure Code [879DKZ] 1141
Failure Code [879EMC] 1143
Failure Code [879FMC] 1144
Failure Code [989FN1] 1145
Failure Code [989L00] 1146
Failure Code [989M00] 1147
Failure Code [989N00] 1148
Failure Code [A1U0N3] 1149
Failure Code [A1U0N4] 1151
Failure Code [AB00KE] 1153
Failure Code [AB00KY] 1155
Failure Code [AQ10N3] 1157
Failure Code [AS00N3] 1159
Failure Code [AS00R2] 1161
Failure Code [AS00R3] 1162
Failure Code [AS00R4] 1163
Failure Code [AS00R5] 1164
Failure Code [AS00R6] 1165
Failure Code [AS00ZK] 1166
Failure Code [AS10KM] 1167
Failure Code [AS10NR] 1168
Failure Code [AS10NT] 1169
Failure Code [B@BAZG] 1170
Failure Code [B@BCNS] 1171
Failure Code [B@BCZK] 1172
Failure Code [B@C6NS] 1174
Failure Code [B@CRNS] 1176
Failure Code [CA115] 1177
Failure Code [CA122] 1178
Failure Code [CA123] 1180
Failure Code [CA131] 1182
Failure Code [CA132] 1184
Failure Code [CA144] 1187
Failure Code [CA145] 1189
Failure Code [CA153] 1191
Failure Code [CA154] 1194
Failure Code [CA187] 1196
Failure Code [CA221] 1198
Failure Code [CA222] 1200
Failure Code [CA227] 1202
Failure Code [CA234] 1203
Failure Code [CA238] 1204
Failure Code [CA239] 1206
Failure Code [CA249] 1208
Failure Code [CA256] 1210
Failure Code [CA271] 1212
Failure Code [CA272] 1214
Failure Code [CA322] 1216
Failure Code [CA323] 1218
Failure Code [CA324] 1220
Failure Code [CA325] 1222
Failure Code [CA331] 1224
Failure Code [CA332] 1226
Failure Code [CA343] 1228
Failure Code [CA351] 1229
Failure Code [CA352] 1230
Failure Code [CA356] 1233
Failure Code [CA357] 1235
Failure Code [CA386] 1238
Failure Code [CA428] 1239
Failure Code [CA429] 1241
Failure Code [CA431] 1243
Failure Code [CA432] 1246
Failure Code [CA435] 1250
Failure Code [CA441] 1252
Failure Code [CA442] 1254
Failure Code [CA449] 1255
Failure Code [CA451] 1256
Failure Code [CA452] 1258
Failure Code [CA488] 1260
Failure Code [CA515] 1261
Failure Code [CA516] 1263
Failure Code [CA553] 1265
Failure Code [CA555] 1266
Failure Code [CA556] 1267
Failure Code [CA559] 1268
Failure Code [CA595] 1271
Failure Code [CA687] 1272
Failure Code [CA689] 1274
Failure Code [CA691] 1277
Failure Code [CA692] 1279
Failure Code [CA697] 1281
Failure Code [CA698] 1282
Failure Code [CA731] 1283
Failure Code [CA778] 1285
Failure Code [CA1117] 1290
Failure Code [CA1664] 1291
Failure Code [CA1669] 1293
Failure Code [CA1673] 1294
Failure Code [CA1677] 1295
Failure Code [CA1678] 1296
Failure Code [CA1682] 1297
Failure Code [CA1683] 1302
Failure Code [CA1684] 1304
Failure Code [CA1686] 1306
Failure Code [CA1691] 1307
Failure Code [CA1694] 1310
Failure Code [CA1695] 1313
Failure Code [CA1696] 1314
Failure Code [CA1712] 1316
Failure Code [CA1713] 1319
Failure Code [CA1714] 1321
Failure Code [CA1715] 1322
Failure Code [CA1776] 1323
Failure Code [CA1777] 1326
Failure Code [CA1843] 1329
Failure Code [CA1844] 1331
Failure Code [CA1879] 1334
Failure Code [CA1881] 1337
Failure Code [CA1883] 1339
Failure Code [CA1885] 1343
Failure Code [CA1887] 1345
Failure Code [CA1921] 1347
Failure Code [CA1922] 1350
Failure Code [CA1942] 1355
Failure Code [CA1993] 1356
Failure Code [CA2185] 1359
Failure Code [CA2186] 1361
Failure Code [CA2249] 1363
Failure Code [CA2271] 1364
Failure Code [CA2272] 1367
Failure Code [CA2288] 1370
Failure Code [CA2311] 1371
Failure Code [CA2349] 1372
Failure Code [CA2353] 1375
Failure Code [CA2357] 1377
Failure Code [CA2381] 1378
Failure Code [CA2382] 1381
Failure Code [CA2383] 1384
Failure Code [CA2386] 1387
Failure Code [CA2387] 1389
Troubleshooting Flowchart 1393
Failure Code [CA2555] 1394
Failure Code [CA2556] 1397
Failure Code [CA2637] 1399
Failure Code [CA2639] 1401
Failure Code [CA2771] 1404
Failure Code [CA2777] 1410
Failure Code [CA2976] 1413
Failure Code [CA3133] 1415
Failure Code [CA3134] 1418
Failure Code [CA3135] 1420
Failure Code [CA3142] 1424
Failure Code [CA3143] 1425
Failure Code [CA3144] 1426
Failure Code [CA3146] 1428
Failure Code [CA3147] 1429
Failure Code [CA3148] 1430
Failure Code [CA3151] 1432
Failure Code [CA3165] 1438
Failure Code [CA3229] 1440
Failure Code [CA3231] 1442
Failure Code [CA3232] 1444
Failure Code [CA3235] 1448
Failure Code [CA3239] 1450
Failure Code [CA3241] 1453
Failure Code [CA3242] 1456
Failure Code [CA3251] 1459
Failure Code [CA3253] 1461
Failure Code [CA3254] 1464
Failure Code [CA3255] 1467
Failure Code [CA3256] 1471
Failure Code [CA3311] 1473
Failure Code [CA3312] 1475
Failure Code [CA3313] 1478
Failure Code [CA3314] 1479
Failure Code [CA3315] 1480
Failure Code [CA3316] 1483
Failure Code [CA3317] 1484
Failure Code [CA3318] 1485
Failure Code [CA3319] 1488
Failure Code [CA3321] 1489
Failure Code [CA3322] 1491
Failure Code [CA3419] 1494
Failure Code [CA3421] 1496
Failure Code [CA3497] 1498
Failure Code [CA3498] 1499
Failure Code [CA3543] 1500
Failure Code [CA3545] 1507
Failure Code [CA3547] 1509
Failure Code [CA3558] 1510
Failure Code [CA3559] 1512
Failure Code [CA3562] 1514
Failure Code [CA3563] 1516
Failure Code [CA3567] 1519
Failure Code [CA3568] 1522
Failure Code [CA3571] 1528
Failure Code [CA3572] 1530
Failure Code [CA3574] 1532
Failure Code [CA3575] 1535
Failure Code [CA3577] 1537
Failure Code [CA3578] 1539
Failure Code [CA3582] 1541
Failure Code [CA3583] 1549
Failure Code [CA3596] 1551
Failure Code [CA3649] 1554
Failure Code [CA3681] 1556
Failure Code [CA3682] 1561
Failure Code [CA3713] 1567
Failure Code [CA3717] 1570
Failure Code [CA3718] 1571
Failure Code [CA3725] 1572
Failure Code [CA3741] 1575
Failure Code [CA3748] 1576
Failure Code [CA3751] 1579
Failure Code [CA3755] 1581
Failure Code [CA3866] 1583
Failure Code [CA3867] 1587
Failure Code [CA3868] 1590
Failure Code [CA3899] 1594
Failure Code [CA3911] 1596
Failure Code [CA3912] 1600
Failure Code [CA3932] 1602
Failure Code [CA3933] 1604
Failure Code [CA3934] 1606
Failure Code [CA3935] 1609
Failure Code [CA3936] 1611
Failure Code [CA4151] 1613
Failure Code [CA4152] 1617
Failure Code [CA4155] 1621
Failure Code [CA4156] 1623
Failure Code [CA4157] 1626
Failure Code [CA4158] 1628
Failure Code [CA4159] 1629
Failure Code [CA4161] 1630
Failure Code [CA4162] 1633
Failure Code [CA4163] 1636
Failure Code [CA4164] 1638
Failure Code [CA4165] 1640
Failure Code [CA4166] 1642
Failure Code [CA4168] 1644
Failure Code [CA4169] 1647
Failure Code [CA4171] 1649
Failure Code [CA4249] 1652
Failure Code [CA4251] 1654
Failure Code [CA4259] 1656
Failure Code [CA4261] 1659
Failure Code [CA4277] 1662
Failure Code [CA4281] 1666
Failure Code [CA4459] 1669
Failure Code [CA4461] 1671
Failure Code [CA4658] 1674
Failure Code [CA4731] 1678
Failure Code [CA4732] 1679
Failure Code [CA4739] 1680
Failure Code [CA4768] 1681
Failure Code [CA4769] 1683
Failure Code [CA4842] 1685
Failure Code [CA4952] (Machine with KOMTRAX Terminal) 1689
Failure Code [CA4952] (Machine with Gateway Function Controller) 1691
Failure Code [CA5115] 1693
Failure Code [CA5179] 1696
Failure Code [CA5181] 1698
Failure Code [CA5383] 1700
Failure Code [D103KA] 1702
Failure Code [D103KB] 1704
Failure Code [D103KY] 1706
Failure Code [D103MC] 1708
Failure Code [D104KA] 1710
Failure Code [D104KB] 1712
Failure Code [D104KY] 1714
Failure Code [D104MC] 1716
Failure Code [D110L4] 1718
Failure Code [D160KA] 1720
Failure Code [D160KY] 1722
Failure Code [D191KA] 1723
Failure Code [D191KB] 1725
Failure Code [D191KY] 1727
Failure Code [D192KA] 1728
Failure Code [D192KB] 1729
Failure Code [D192KY] 1730
Failure Code [D19JKZ] 1731
Failure Code [D1B0KA] 1733
Failure Code [D1B0KB] 1735
Failure Code [D1B0KY] 1737
Failure Code [D1B0MC] 1739
Failure Code [D1E6KA] 1741
Failure Code [D1E6KB] 1743
Failure Code [D1E6KY] 1745
Failure Code [D5ZHKA] 1747
Failure Code [D5ZHKB] 1749
Failure Code [D5ZHL6] 1751
Failure Code [D811MC] (Machine with KOMTRAX Terminal) 1752
Failure Code [D811MC] (Machine with Gateway Function Controller) 1753
Failure Code [D862KA] (Machine with KOMTRAX Terminal) 1754
Failure Code [D862KA] (Machine with Gateway Function Controller) 1755
Failure Code [D8ALKA] (Machine with KOMTRAX Terminal) 1756
Failure Code [D8ALKA] (Machine with Gateway Function Controller) 1758
Failure Code [D8ALKB] (Machine with KOMTRAX Terminal) 1760
Failure Code [D8ALKB] (Machine with Gateway Function Controller) 1762
Failure Code [D8AQK4] (Machine with KOMTRAX Terminal) 1764
Failure Code [D8AQK4] (Machine with Gateway Function Controller) 1768
Failure Code [D8AQKR] (Machine with KOMTRAX Terminal) 1772
Failure Code [D8AQKR] (Machine with Gateway Function Controller) 1776
Failure Code [D8G1KT] 1780
Failure Code [D8G6KT] 1781
Failure Code [DAF0KT] 1782
Failure Code [DAF0MB] 1783
Failure Code [DAF0MC] 1784
Failure Code [DAF3KK] 1785
Failure Code [DAF8KB] 1787
Failure Code [DAFDKB] 1788
Failure Code [DAFGMC] (Machine with KOMTRAX Terminal) 1790
Failure Code [DAFGMC] (Machine with Gateway Function Controller) 1791
Failure Code [DAFLKA] (Machine with KOMTRAX Terminal) 1792
Failure Code [DAFLKA] (Machine with Gateway Function Controller) 1794
Failure Code [DAFLKB] (Machine with KOMTRAX Terminal) 1796
Failure Code [DAFLKB] (Machine with Gateway Function Controller) 1798
Failure Code [DAFQKR] (Machine with KOMTRAX Terminal) 1800
Failure Code [DAFQKR] (Machine with Gateway Function Controller) 1805
Failure Code [DAJ0KK] 1810
Failure Code [DAJ0KT] 1813
Failure Code [DAJ0MC] 1814
Failure Code [DAJ1KA] 1815
Failure Code [DAJ2KK] 1817
Failure Code [DAJ2KT] 1820
Failure Code [DAJ4KB] 1823
Failure Code [DAJ4KZ] 1825
Failure Code [DAJ5KX] (Applicable Machine: 83001 to 86599) 1827
Failure Code [DAJ5KX] (Applicable Machine: 86600 and Up) 1829
Failure Code [DAJ6KX] (Applicable Machine: 83001 to 86599) 1831
Failure Code [DAJ6KX] (Applicable Machine: 86600 and Up) 1833
Failure Code [DAJ9KQ] 1835
Failure Code [DAJLKA] (Machine with KOMTRAX Terminal) 1836
Failure Code [DAJLKA] (Machine with Gateway Function Controller) 1838
Failure Code [DAJLKB] (Machine with KOMTRAX Terminal) 1840
Failure Code [DAJLKB] (Machine with Gateway Function Controller) 1842
Failure Code [DAJQKR] (Machine with KOMTRAX Terminal) 1844
Failure Code [DAJQKR] (Machine with Gateway Function Controller) 1849
Failure Code [DAJRKR] 1854
Failure Code [DAJRMA] 1859
Failure Code [DAZ9KQ] 1860
Failure Code [DAZQKR] (Machine with KOMTRAX Terminal) 1861
Failure Code [DAZQKR] (Machine with Gateway Function Controller) 1865
Failure Code [DB2QKR] (Machine with KOMTRAX Terminal) 1869
Failure Code [DB2QKR] (Machine with Gateway Function Controller) 1875
Failure Code [DB2RKR] 1881
Failure Code [DD1ALD] 1886
Failure Code [DDAAL6] 1888
Failure Code [DDB2L4] 1890
Failure Code [DDB6L4] 1892
Failure Code [DDD7KA] 1894
Failure Code [DDD7KY] 1896
Failure Code [DDK3KA] 1898
Failure Code [DDK3KB] 1901
Failure Code [DDK6KA] 1904
Failure Code [DDK6KB] 1907
Failure Code [DDNRLD] (Applicable Machine: 83001 to 86599) 1910
Failure Code [DDNRLD] (Applicable Machine: 86600 and Up) 1912
Failure Code [DF10KA] 1914
Failure Code [DF10KB] 1917
Failure Code [DGH1KX] 1920
Failure Code [DGR2KB] 1922
Failure Code [DGR2KZ] 1924
Failure Code [DHHBKA] 1926
Failure Code [DHHBKY] 1928
Failure Code [DHHCKA] 1930
Failure Code [DHHCKY] 1932
Failure Code [DHPCKA] 1934
Failure Code [DHPCKY] 1936
Failure Code [DHPEKA] 1938
Failure Code [DHPEKY] 1940
Failure Code [DHS8KA] 1942
Failure Code [DHS8KY] 1944
Failure Code [DHS9KA] 1946
Failure Code [DHS9KY] 1948
Failure Code [DHSDKA] 1950
Failure Code [DHSDKY] 1952
Failure Code [DHSNKA] 1954
Failure Code [DHSNKY] 1956
Failure Code [DHT8ZG] 1958
Failure Code [DHTCL6] 1959
Failure Code [DJF1KA] 1961
Failure Code [DK55KA] 1962
Failure Code [DK55KY] 1964
Failure Code [DK55L5] 1966
Failure Code [DK5DKA] (Applicable Machine: 83001 to 86599) 1967
Failure Code [DK5DKA] (Applicable Machine: 86600 and Up) 1970
Failure Code [DK5DKY] (Applicable Machine: 83001 to 86599) 1973
Failure Code [DK5DKY] (Applicable Machine: 86600 and Up) 1976
Failure Code [DK5DL8] (Applicable Machine: 83001 to 86599) 1979
Failure Code [DK5DL8] (Applicable Machine: 86600 and Up) 1983
Failure Code [DK5EKA] (Applicable Machine: 83001 to 86599) 1987
Failure Code [DK5EKA] (Applicable Machine: 86600 and Up) 1990
Failure Code [DK5EKY] (Applicable Machine: 83001 to 86599) 1993
Failure Code [DK5EKY] (Applicable Machine: 86600 and Up) 1996
Failure Code [DK70KA] 1999
Failure Code [DK70KY] 2001
Failure Code [DKA0KA] 2003
Failure Code [DKA0KY] 2006
Failure Code [DKA0L0] 2008
Failure Code [DLM3KA] 2010
Failure Code [DLM3LC] 2012
Failure Code [DLT3KX] (Applicable Machine: 83001 to 86599) 2014
Failure Code [DLT3KX] (Applicable Machine: 86600 and Up) 2016
Failure Code [DLT4KX] (Applicable Machine: 83001 to 86599) 2018
Failure Code [DLT4KX] (Applicable Machine: 86600 and Up) 2020
Failure Code [DLT4L0] 2022
Failure Code [DLT4LC] (Applicable Machine: 83001 to 86599) 2023
Failure Code [DLT4LC] (Applicable Machine: 86600 and Up) 2025
Failure Code [DPQ1KR] 2027
Failure Code [DPQ2KR] 2030
Failure Code [DPQ3KR] 2033
Failure Code [DSJ0KR] (Machine with KOMTRAX Terminal) 2037
Failure Code [DSJ0KR] (Machine with Gateway Function Controller) 2042
Failure Code [DT22KB] (Applicable Machine: 83001 to 86599) 2047
Failure Code [DT22KB] (Applicable Machine: 86600 and Up) 2049
Failure Code [DV00KB] 2051
Failure Code [DW26KA] 2052
Failure Code [DW26KB] 2054
Failure Code [DW26KY] 2056
Failure Code [DW4BKA] (Applicable Machine: 83001 to 86599) 2058
Failure Code [DW4BKA] (Applicable Machine: 86600 and Up) 2060
Failure Code [DW4BKB] (Applicable Machine: 83001 to 86599) 2062
Failure Code [DW4BKB] (Applicable Machine: 86600 and Up) 2064
Failure Code [DW4BKY] (Applicable Machine: 83001 to 86599) 2066
Failure Code [DW4BKY] (Applicable Machine: 86600 and Up) 2067
Failure Code [DW4RKA] 2069
Failure Code [DW4RKB] 2071
Failure Code [DW4RKY] 2073
Failure Code [DWM1KA] (Applicable Machine: 83001 to 86599) 2075
Failure Code [DWM1KA] (Applicable Machine: 86600 and Up) 2076
Failure Code [DWM1KB] (Applicable Machine: 83001 to 86599) 2078
Failure Code [DWM1KB] (Applicable Machine: 86600 and Up) 2080
Failure Code [DWM1KY] (Applicable Machine: 83001 to 86599) 2082
Failure Code [DWM1KY] (Applicable Machine: 86600 and Up) 2083
Failure Code [DWN6KA] 2085
Failure Code [DWN6KB] 2087
Failure Code [DWN6KY] 2089
Failure Code [DWN8KA] 2090
Failure Code [DWN8KB] 2091
Failure Code [DWN8KY] 2092
Failure Code [DX19KA] 2093
Failure Code [DX19KB] 2095
Failure Code [DX19KY] 2097
Failure Code [DX20KA] 2099
Failure Code [DX20KB] 2101
Failure Code [DX20KY] 2103
Failure Code [DXAWKA] 2104
Failure Code [DXAWKB] 2107
Failure Code [DXAWKY] 2110
Failure Code [DXH7KA] 2113
Failure Code [DXH7KB] 2115
Failure Code [DXH7KY] 2117
Failure Code [DXH8KA] 2119
Failure Code [DXH8KB] 2121
Failure Code [DXH8KY] 2123
Failure Code [DXHJKA] 2125
Failure Code [DXHJKB] 2127
Failure Code [DXHJKY] 2129
Failure Code [DXHKKA] 2130
Failure Code [DXHKKB] 2132
Failure Code [DXHKKY] 2134
Failure Code [F313KA] 2135
Failure Code [F313KB] 2137
Failure Code [F314KA] 2138
Failure Code [F314KB] 2140
Failure Code [F315KB] 2142
Failure Code [F315KY] 2144
Failure Code [F316KB] 2146
Failure Code [F316KY] 2148
Failure Code [F318KB] 2150
Failure Code [F318KY] 2152
Failure Code [F31AKB] 2153
Failure Code [F31AKY] 2155
Failure Code [F31BKB] 2157
Failure Code [F31BKY] 2159
Failure Code [F31CKB] 2161
Failure Code [F31CKY] 2163
Failure Code [F31DKB] 2165
Failure Code [F31DKY] 2167
Failure Code [F31EKB] 2169
Failure Code [F31EKY] 2171
Failure Code [FS10ZE] 2173
Failure Code [H2K0KA] 2174
Failure Code [H2K0KY] 2176
Failure Code [J141N1] 2178
Failure Code [LA00L3] 2179
Failure Code [M100N1] 2180
Failure Code [M400N1] 2181
Troubleshooting of Electrical System (E-Mode) 2182
Engine Does Not Start (Engine Does Not Crank) 2182
Manual Preheating System Does Not Operate 2190
Automatic Preheating System Does Not Operate 2193
While Preheating is in Operation, Preheating Monitor Does Not Come On 2196
The LCD Unit, LED Unit, and Meter Unit of the Machine Monitor Show Nothing 2198
LCD Unit on Machine Monitor Shows Nothing 2201
Backlight of LCD Unit on Machine Monitor is Abnormal (Backlight Goes Off or Flickers) 2203
LCD Screen on Machine Monitor Does Not Show Correctly 2205
Meter Unit Display on Machine Monitor is Abnormal 2207
Night Mode Lamp of Meter Unit on Machine Monitor is Abnormal 2210
LED Unit Lamp on Machine Monitor is Abnormal 2213
Night Mode Lamp of Switch Panel on Machine Monitor is Abnormal or Switches Do Not Operate Correctly 2215
Two Switches Operation of Switch Panel on Machine Monitor Does Not Operate 2218
Switch Panel Buzzer of Machine Monitor is Abnormal 2221
Some Items of Gauges and Caution Lamps on Machine Monitor are Not Shown Normally 2224
DEF Level is Not Shown Correctly 2225
Rearview Monitor Does Not Come On or Backlight Flickers 2228
Rearview Monitor Images are Not Shown Clearly 2231
Rearview Monitor Brightness Cannot be Adjusted 2235
Night Mode Lamp of Rearview Monitor is Abnormal 2239
Radiator Coolant Level Caution Lamp Does Not Come On 2241
Parking Brake Indicator Lamp Does Not Light When Parking Brake is Set to ON (Parking) Position 2243
Brake Oil Pressure Caution Lamp Does Not Come On When Front Brake Accumulator Oil Pressure is Low 2247
Brake Oil Pressure Caution Lamp Does Not Come On When Rear Brake Accumulator Oil Pressure is Low 2248
Indication of HST Oil Temperature Gauge Does Not Increase, or HST Oil Temperature Caution Lamp Does Not Come On 2249
When the Inching Pedal is Pushed, Inching Function Does Not Work or While the Pedal is Not Pushed, Inching Function Operates 2250
Fuel Gauge Does Not Show Normally 2252
Seatbelt Caution Lamp Does Not Show Normally 2254
Alarm Buzzer Does Not Operate 2255
Alarm Buzzer Does Not Stop 2257
When the Emergency HST Pump Drive Switch is Operated, It Does Not Work or When the Emergency HST Pump Drive Switch is Not Operated, It Works 2258
Setting Does Not Change While You Operate the Traction Control Switch 2261
The Remote Positioner Does Not Work or Cannot be Released 2263
The Bucket Positioner Does Not Work or Cannot be Released 2265
Parking Brake Does Not Operate Even If It is Applied, or the Brake Drags in Forward or Reverse Travel When Parking Brake is Released 2268
Directional Selector (FNR) Switch Mode is Not Selected or Not Released 2272
PZ Auto Tilt-in Does Not Work 2274
PZ Auto Tilt-in Does Not Work (Applicable Machine: 83001 to 86599) 2275
PZ Auto Tilt-in Does Not Work (Applicable Machine: 86600 and Up) 2278
Traction Level Does Not Show MAX When Max Traction Switch is Turned on 2281
ECSS Function Cannot be Selected or Cannot be Released 2283
ECSS Function Cannot be Selected or Cannot be Released (Applicable Machine: 83001 to 86599) 2284
ECSS Function Cannot be Selected or Cannot be Released (Applicable Machine: 86600 and Up) 2286
Horn Does Not Sound 2288
Horn Does Not Stop 2291
Headlamp, Clearance Lamp, and Tail Lamp Do Not Come On 2293
Clearance Lamp and Tail Lamp Do Not Come On or Go Out 2295
Clearance Lamp and Tail Lamp Do Not Come on or Go Out (For European Union) 2299
High and Low Beams of Headlamp Do Not Come On or Go Out 2303
High and Low Beams of Headlamp Do Not Come On or Go Out (EU Specification) 2307
Low Beam of Headlamp Does Not Come On or Go Out 2311
Low Beam of Headlamp Does Not Come On or Go Out (For European Union) 2313
High Beam of Headlamp Does Not Come On or Go Out 2315
High Beam of Headlamp Does Not Come On or Go Out (For European Union) 2317
Front Working Lamp Does Not Come On or Go Out 2319
Rear Working Lamp Does Not Come On or Go Out 2324
Turn Signal Lamp and Hazard Lamp Do Not Come On or Go Out 2328
Turn Signal Lamp Does Not Come On or Go Out 2331
Turn Signal Lamps Do Not Come On or Go Out (For European Union) 2334
Hazard Lamp Does Not Come On or Go Out 2337
Hazard Lamp Does Not Come On or Go Out (For European Union) 2341
Brake Lamp Does Not Come On or Stays Lit 2345
Brake Lamp Does Not Light or Stays Lighted (For European Union) 2349
Backup Lamp Does Not Come On or Stays Lit 2353
Backup Lamp Does Not Come On or Does Not Go Out (For European Union) 2357
Backup Buzzer Does Not Sound or Continues to Sound 2361
Front Wiper Does Not Operate 2363
Rear Wiper Does Not Operate 2367
Window Washer Does Not Operate 2370
KOMTRAX System Does Not Operate Correctly 2373
Auto-Greasing Pump Display Shows [FCS] 2374
Auto-Greasing Pump Display Shows [FLL] 2375
Auto-Greasing System Does Not Operate or Stop 2376
Troubleshooting for Hydraulic and Mechanical Systems (H Mode) 2377
Information Shown in Troubleshooting Table (H-Mode) 2377
Failure Mode and Cause Table 2378
Machine Can Not Move Forward or Reverse 2392
Machine Can Not Travel FORWARD (Machine Travels REVERSE Normally) 2395
Machine Can Not Travel REVERSE (Machine Travels FORWARD Normally) 2396
Travel Speed of FORWARD Travel and REVERSE Travel is Slow, or Power is Low 2397
Forward Travel Speed is Slow or Power is Low (Machine Travels REVERSE Normally) 2401
REVERSE Travel Speed is Slow or Power is Low (Machine Travels FORWARD Normally) 2402
Engine Speed Drops Largely or Engine Stops 2403
Machine Does Not Turn 2405
Steering Wheel is Heavy to Operate 2407
Machine Sways or Large Shocks are Made While Machine Turns 2409
Machine Unintentionally Turns to One Side When Machine Travels 2410
Wheel Brakes Do Not Operate or are Weak 2411
Wheel Brakes are Not Released or Drag 2413
Parking Brake Does Not Operate or is Weak 2414
Parking Brake is Not Released or Drags 2415
Boom Does Not Rise 2417
Boom Moves Slow or Lacks Lifting Force 2420
Rising Boom Slows Down at Specified Height 2423
Lift Cylinders Can Not Hold Bucket on Ground 2424
Hydraulic Drift of Boom is Large 2426
Boom Moves Up and Down During Operation 2427
Bucket Does Not Tilt Back 2428
Bucket Moves Slow or Lacks Tilt-Back Force 2431
Bucket Slows Down During Tilt Back Operation 2434
Bucket Cylinder Does Not Hold Bucket on Ground 2435
Hydraulic Drift of Bucket is Large 2437
Bucket Tilts Back and Forth When You Carry Load (Work Equipment Valve is in Hold) 2438
Boom and Bucket Control Levers Do Not Move Smoothly and are Heavy to Move 2439
Engine Speed Drops Largely or Engine Stops When You Operate Work Equipment 2440
Large Shocks are Made When Work Equipment Starts to Move and Stops 2441
When Single Work Equipment is Released Hydraulically, Other Work Equipment Moves 2443
ECSS Does Not Operate and Machine Pitches and Bounces 2444
Fan Speed is Abnormal (Too High or Low, or Does Not Rotate) 2445
Unusual Noise is Heard from Around Fan 2448
Troubleshooting of Engine (S-Mode) 2449
Information Shown in Troubleshooting Table (S-Mode) 2449
Engine Does Not Crank When Starting Switch is Turned to Start Position 2450
Engine Cranks but No Exhaust Smoke Comes Out 2451
Fuel is Sprayed but Engine Does Not Start (Misfiring: Engine Cranks but Does Not Start) 2452
Engine Startability is Unsatisfactory 2454
Engine Does Not Pick Up Smoothly 2456
Engine Stops During Operation 2458
Engine Does Not Rotate Smoothly 2460
Engine Lacks Output (or Lacks Power) 2461
KDPF Becomes Clogged in a Short Time 2463
Engine Oil Consumption is Excessive 2465
Engine Oil Becomes Dirty Quickly 2466
Fuel Consumption is Excessive 2467
Oil is in Coolant (or Coolant Spurts Back or Coolant Level Goes Down) 2468
Engine Oil Pressure Drops 2469
Fuel Mixes Into Engine Oil 2471
Water Mixes Into Engine Oil (Milky) 2472
Coolant Temperature Increases Too High (Overheat) 2473
Unusual Noise is Heard 2474
Vibration is Excessive 2475
Air Cannot be Bled from Fuel Circuit 2476
Active Regeneration is Done Frequently 2477
Active Regeneration Continues Long 2479
White Smoke is Exhausted During Active Regeneration 2480
DEF Consumption is Excessive 2481
Foreign Materials Enter DEF (DEF Increases) 2483
Troubleshooting for Auto-Greasing System 2484
Outline of Failure Display 2484
Troubleshooting for FCS 2485
Replacement of Pump Element 2486
Troubleshooting for Grease Supply System 2487
Replace Auto-Greasing Controller 2489
Assembly procedure when disassembled in troubleshooting 2490
50 Disassembly and Assembly 2491
Table of Contents 2492
Precautions Before Work 2497
Abbreviation List 2498
Related Information on Disassembly and Assembly 2504
How to Read This Manual 2504
Coating Materials List 2505
Special Tool List 2510
Sketches of Special Tools 2533
Engine and Cooling System 2554
Remove and Install Supply Pump Assembly 2554
How to Remove Supply Pump Assembly 2555
How to Install Supply Pump Assembly 2560
Remove and Install Injector Assembly 2567
How to Remove Injector Assembly 2567
How to Install Injector Assembly 2575
Remove and Install Cylinder Head Assembly 2585
How to Remove Cylinder Head Assembly 2586
How to Install Cylinder Head Assembly 2597
Remove and Install EGR Valve Assembly 2612
How to Remove EGR Valve Assembly 2612
How to Install EGR Valve Assembly 2616
Remove and Install EGR Cooler Assembly 2620
How to Remove EGR Cooler Assembly 2620
How to Install EGR Cooler Assembly 2624
Remove and Install Starter Assembly 2628
How to Remove Starting Motor Assembly 2628
How to Install Starting Motor Assembly 2630
Remove and Install Air Conditioner Compressor Belt 2633
How to Remove Air Conditioner Compressor Belt 2633
How to Install Air Conditioner Compressor Belt 2634
Remove and Install Alternator Belt 2636
How to Remove Alternator Belt 2636
How to Install Alternator Belt 2639
Remove and Install Alternator Assembly 2641
How to Remove Alternator Assembly 2641
How to Install Alternator Assembly 2644
Remove and Install Automatic Tensioner 2648
How to Remove Automatic Tensioner 2648
How to Install Automatic Tensioner 2648
Remove and Install Radiator Assembly 2649
How to Remove Radiator Assembly 2649
How to Install Radiator Assembly 2653
Remove and Install Cooling Fan and Fan Motor Assembly 2656
How to Remove Cooling Fan and Fan Motor Assembly 2656
How to Install Cooling Fan and Fan Motor Assembly 2659
Remove and Install Hydraulic Oil Cooler Assembly 2663
How to Remove Hydraulic Oil Cooler Assembly 2663
How to Install Hydraulic Oil Cooler Assembly 2665
Remove and Install Aftercooler Assembly 2667
How to Remove Aftercooler Assembly 2667
How to Install Aftercooler Assembly 2668
Remove and Install Engine Assembly 2670
How to Remove Engine Assembly 2671
How to Install Engine Assembly 2689
Remove and Install Engine Front Oil Seal 2709
How to Remove Engine Front Oil Seal 2709
How to Install Engine Front Oil Seal 2711
Remove and Install Engine Rear Oil Seal 2714
How to Remove Engine Rear Oil Seal 2714
How to Install Engine Rear Oil Seal 2716
Remove and Install Engine Hood Assembly 2720
How to Remove Engine Hood Assembly 2720
How to Install Engine Hood Assembly 2726
Remove and Install Fuel Tank Assembly 2733
How to Remove Fuel Tank Assembly 2733
How to Install Fuel Tank Assembly 2737
Remove and Install DEF Tank Assembly 2742
How to Remove DEF Tank Assembly 2743
How to Install DEF Tank Assembly 2750
Remove and Install DEF Tank Sensor Flange Assembly 2756
How to Remove DEF Tank Sensor Flange Assembly 2756
How to Install DEF Tank Sensor Flange Assembly 2758
Remove and Install DEF Tank Sensor 2761
How to Remove DEF Tank Sensor 2761
How to Install DEF Tank Sensor 2762
Remove and Install DEF Tank Strainer 2769
How to Remove DEF Tank Strainer 2769
How to Install DEF Tank Strainer 2770
Remove and Install KDPF Assembly 2771
How to Remove KDPF Assembly 2772
How to Install KDPF Assembly 2782
Disassemble and Assemble KDPF Assembly 2794
How to Disassemble KDPF Assembly 2794
How to Assemble KDPF Assembly 2799
Remove and Install SCR Assembly 2804
How to Remove SCR Assembly 2805
How to Install SCR Assembly 2815
Remove and Install KDPF and SCR Assembly 2828
How to Remove KDPF and SCR Assembly 2829
How to Install KDPF and SCR Assembly 2839
Remove and Install Bellows Pipe Assembly 2854
How to Remove Bellows Pipe Assembly 2854
How to Install Bellows Pipe Assembly 2857
Remove and Install KCCV Assembly 2862
How to Remove KCCV Assembly 2862
How to Install KCCV Assembly 2864
Remove and Install VGT Assembly 2867
How to Remove VGT Assembly 2867
How to Install VGT Assembly 2874
Remove and Install DEF Mixing Tube 2883
How to Remove DEF Mixing Tube 2884
How to Install DEF Mixing Tube 2889
Remove and Install DEF Injector 2896
How to Remove DEF Injector 2896
How to Install DEF Injector 2898
Remove and Install DEF Pump 2902
How to Remove DEF Pump 2902
How to Install DEF Pump 2905
Remove and Install DEF Hose 2909
How to Remove DEF Hose 2909
How to Install DEF Hose 2919
Remove and Install Air Cleaner Assembly 2929
How to Remove Air Cleaner Assembly 2929
How to Install Air Cleaner Assembly 2932
Remove and Install Air Conditioner Compressor Assembly 2935
How to Remove Air Conditioner Compressor Assembly 2936
How to Install Air Conditioner Compressor Assembly 2938
Remove and Install Air Conditioner Condenser Assembly 2941
How to Remove Air Conditioner Condenser Assembly 2941
How to Install Air Conditioner Condenser Assembly 2943
Power Train 2946
Remove and Install HST Pump Assembly 2946
How to Remove HST Pump Assembly 2947
How to Install HST Pump Assembly 2953
Remove and Install HST Motor 1 Assembly 2962
How to Remove HST Motor 1 Assembly 2962
How to Install HST Motor 1 Assembly 2965
Remove and Install HST Motor 2 Assembly 2968
How to Remove HST Motor 2 Assembly 2969
How to Install HST Motor 2 Assembly 2977
Remove and Install Transfer Assembly 2986
How to Remove Transfer Assembly 2987
How to Install Transfer Assembly 2991
Disassemble and Assemble Transfer Assembly 2996
How to Disassemble Transfer Assembly 2999
How to Assemble Transfer Assembly 3018
Remove and Install Front Axle Assembly 3043
How to Remove Front Axle Assembly 3043
How to Install Front Axle Assembly 3045
Remove and Install Rear Axle Assembly 3048
How to Remove Rear Axle Assembly 3048
How to Install Rear Axle Assembly 3052
Disassemble and Assemble Axle Housing Assembly 3056
How to Disassemble Axle Housing Assembly 3057
How to Assemble Axle Housing Assembly 3065
Disassemble and Assemble Differential Assembly 3075
How to Disassemble Differential Assembly 3076
How to Assemble Differential Assembly 3089
Undercarriage and Frame 3109
Remove and Install Center Hinge Pin 3109
How to Remove Center Hinge Pin 3110
How to Install Center Hinge Pin 3117
Remove and Install Counterweight Assembly 3132
How to Remove Counterweight Assembly 3132
How to Install Counterweight Assembly 3138
Hydraulic System 3143
Remove and Install Hydraulic Tank Assembly 3143
How to Remove Hydraulic Tank Assembly 3143
How to Install Hydraulic Tank Assembly 3153
Remove and Install Control Valve Assembly 3162
How to Remove Control Valve Assembly 3162
How to Install Control Valve Assembly 3168
Remove and Install Quick Coupler LS Pressure Rise Valve Assembly 3173
How to Remove Quick Coupler LS Pressure Rise Valve Assembly 3173
How to Install Quick Coupler LS Pressure Rise Valve Assembly 3176
Work Equipment 3179
Remove and Install Work Equipment Assembly 3179
How to Remove Work Equipment Assembly 3180
How to Install Work Equipment Assembly 3184
Disassemble and Assemble Work Equipment Cylinder Assembly 3195
How to Disassemble Work Equipment Cylinder Assembly 3196
How to Assemble Work Equipment Cylinder Assembly 3200
CAB Related Parts 3207
Remove and Install Operator Cab and Floor Frame Assembly 3207
How to Remove Operator Cab and Floor Frame Assembly 3208
How to Install Operator Cab and Floor Frame Assembly 3215
Remove and Install Operator Cab Glass (Adhered Glass) 3224
How to Remove Operator Cab Glass (Adhered Glass) 3224
How to Install Operator Cab Glass (Adhered Glass) 3225
Remove and Install Air Conditioner Unit Assembly 3234
How to Remove Air Conditioner Unit Assembly 3234
How to Install Air Conditioner Unit Assembly 3240
Remove and Install Operator Seat Assembly 3247
How to Remove Operator Seat Assembly 3247
How to Install Operator Seat Assembly 3247
How to Remove and Install Seat Belt 3249
How to Remove Seat Belt 3249
How to Install Seatbelt 3249
Electrical System 3251
Remove and Install Engine Controller Assembly 3251
How to Remove Engine Controller Assembly 3251
How to Install Engine Controller Assembly 3255
Remove and Install HST Controller Assembly 3260
How to Remove HST Controller Assembly 3260
How to Install HST Controller Assembly 3262
Remove and Install Air Conditioner Controller Assembly 3264
How to Remove Air Conditioner Controller Assembly 3264
How to Install Air Conditioner Controller Assembly 3265
Remove and Install Monitor Controller Assembly 3267
How to Remove Monitor Controller Assembly 3267
How to Install Monitor Controller Assembly 3270
Remove and Install Machine Monitor Assembly 3272
How to Remove Machine Monitor Assembly 3272
How to Install Machine Monitor Assembly 3275
Remove and Install Mass Air Flow and Temperature Sensor 3278
How to Remove Mass Air Flow and Temperature Sensor 3278
How to Install Mass Air Flow and Temperature Sensor 3279
Remove and Install KCCV Crankcase Pressure Sensor 3280
How to Remove KCCV Crankcase Pressure Sensor 3280
How to Install KCCV Crankcase Pressure Sensor 3281
Remove and Install KDPF Temperature Sensor 3283
How to Remove KDPF Temperature Sensor 3283
How to Install KDPF Temperature Sensor 3285
Remove and Install KDPF Differential Pressure Sensor 3288
How to Remove KDPF Differential Pressure Sensor 3288
How to Install KDPF Differential Pressure Sensor 3291
Remove and Install SCR Temperature Sensor 3294
How to Remove SCR Temperature Sensor 3294
How to Install SCR Temperature Sensor 3295
Remove and Install Ammonia Sensor 3297
How to Remove Ammonia Sensor 3297
How to Install Ammonia Sensor 3299
Remove and Install SCR Outlet NOx Sensor 3302
How to Remove SCR Outlet NOx Sensor 3302
How to Install SCR Outlet NOx Sensor 3305
Remove and Install KOMTRAX Terminal Assembly 3308
How to Remove KOMTRAX Terminal Assembly 3308
How to Install KOMTRAX Terminal Assembly 3309
Remove and Install Gateway Function Controller Assembly 3310
How to Remove Gateway Function Controller Assembly 3310
How to Install Gateway Function Controller Assembly 3311
Remove and Install Communication Terminal 3312
How to Remove Communication Terminal 3312
How to Install Communication Terminal 3314
60 Maintenance Standard 3319
Table of Contents 3320
Abbreviation List 3321
Engine and Cooling System 3327
Maintenance Standard for Engine Mount 3327
Maintenance Standard for Damper 3328
Maintenance Standard for Cooling Fan Motor 3330
Power Train 3332
Maintenance Standard for Drive Shaft 3332
Maintenance Standard for Transfer 3333
Maintenance Standard for Transfer Mount 3341
Maintenance Standard for Front Axle 3342
Maintenance Standard for Rear Axle 3343
Maintenance Standard for Front Torque Proportioning Differential 3344
Maintenance Standard for Rear Torque Proportioning Differential 3346
Maintenance Standard for Limited Slip Differential 3348
Maintenance Standard for Front Final Drive 3350
Maintenance Standard for Rear Final Drive 3352
Steering System 3354
Maintenance Standard for Steering Column 3354
Maintenance Standard for Priority Valve 3355
Maintenance Standard for Steering Cylinder 3356
Maintenance Standard for Secondary Steering Valve 3359
Brake System 3360
Maintenance Standard for Brake Circuit Accumulator Charge Valve 3360
Maintenance Standard for Slack Adjuster 3361
Maintenance Standard for Front Brake 3362
Maintenance Standard for Rear Brake 3363
Maintenance Standard for Parking Brake 3364
Maintenance Standard for Parking Brake Solenoid Valve 3366
Undercarriage and Frame 3367
Maintenance Standard for Frame, Axle Mount and Center Hinge Pin 3367
Hydraulic System 3378
Maintenance Standard for Hydraulic Tank 3378
Maintenance Standard for Brake and Cooling Fan Pump and Transfer Lubrication Pump 3379
Maintenance Standard for Steering and Work Equipment Pump 3380
Maintenance Standard for Servo Valve of Steering and Work Equipment Pump 3383
Maintenance Standard for Control Valve 3384
Maintenance Standard for Self-Pressure Reducing Valve 3396
Maintenance Standard for Multifunction Mono-Lever PPC Valve 3398
Maintenance Standard for Work Equipment Lock Solenoid Valve 3400
Work Equipment 3401
Maintenance Standard for Work Equipment Linkage 3401
Maintenance Standard for Bucket 3405
Maintenance Standard for Lift Cylinder 3406
Maintenance Standard for Bucket Cylinder 3407
CAB Related Parts 3408
Maintenance Standard for CAB Mount 3408
80 Appendix 3409
Table of Contents 3410
Precautions Before Work 3412
Abbreviation List 3413
Air Conditioner System 3419
Precautions for Refrigerant 3419
Air Conditioner Component 3420
Specifications of Air Conditioner 3422
Structure and Function of Refrigeration Cycle 3423
Outline of Refrigeration Cycle 3424
Component Parts of Air Conditioner System 3426
Air Conditioner Unit 3426
Configuration Diagram of Air Conditioner Unit 3426
Function of Air Conditioner Unit 3427
Component Parts of Air Conditioner Unit 3428
Function of Evaporator as Air Conditioner Unit Component 3428
Function of Inside Air Temperature Sensor as Air Conditioner Unit Component 3428
Function of Blower Amplifier as Air Conditioner Unit Component 3429
Function of Blower OFF Relay as Air Conditioner Unit Component 3429
Function of Compressor Clutch Relay as Air Conditioner Unit Component 3429
Function of Heater Core as Air Conditioner Unit Component 3429
Function of Evaporator Temperature Sensor as Air Conditioner Unit Component 3429
Function of Servo Motor as Air Conditioner Unit Component 3429
Function of Expansion Valve as Air Conditioner Unit Component 3430
Function of Dual Pressure Switch 3430
Air Conditioner Controller 3431
Structure of Air Conditioner Controller 3431
Compressor 3432
Structure of Compressor 3432
Specifications of Compressor 3432
Function of Compressor 3432
Condenser 3433
Structure of Condenser 3433
Specifications of Condenser 3433
Function of Condenser 3433
Receiver Drier 3434
Structure of Receiver Dryer 3434
Specifications of Receiver Dryer 3434
Function of Receiver Dryer 3434
Air Conditioner Related Sensors 3435
Function of Sunlight Sensor 3435
Function of Outside Air Temperature Sensor 3435
Explanation of Procedure for Test of and Troubleshooting of Air Conditioner 3436
Circuit Diagram and Configuration of Connector Pins of Air Conditioner 3438
System Diagram of Air Conditioner 3441
Input and Output Signals of Air Conditioner Controller 3442
Function of Air Conditioner Controller 3443
Locations of Air Conditioner Parts and Layout of Connectors 3444
Examine Air Conditioner with Self-Diagnosis Function 3450
Open the Electrical System Abnormality Record Screen in Service Mode of Machine Monitor 3451
Examine Temperature Control Function 3452
How to Examine Temperature Control Function 3452
Examine Vent (Mode) Changeover 3454
How to Examine Vent (Mode) Changeover 3454
Examine Fresh/Recirc Air Changeover 3456
How to Examine Fresh/Recirc Air Changeover 3456
Examine Evaporator Temperature Sensor 3458
Examine Relay 3460
How to Examine Relay 3460
Air Conditioner Troubleshooting Chart 1 3462
Air Conditioner Troubleshooting Chart 2 3463
Failure Code [879AKA] 3466
Failure Code [879AKB] 3468
Failure Code [879BKA] 3470
Failure Code [879BKB] 3472
Failure Code [879CKA] 3474
Failure Code [879CKB] 3476
Failure Code [879DKZ] 3478
Failure Code [879EMC] 3480
Failure Code [879FMC] 3481
Troubleshooting for Power Supply System (Air Conditioner Does Not Operate) 3482
Troubleshooting for Compressor and Refrigerant System (Air is Not Cooled) 3485
Troubleshooting for Blower Motor System (No Air Comes Out or Air Flow is Abnormal) 3488
Troubleshooting for Fresh/Recirc Air Changeover 3492
Troubleshooting by Gauge Pressure 3494
Connect Service Tool 3497
How to Connect Service Tool 3498
Precautions for Disconnection and Connection of Air Conditioner Piping 3499
Handle Compressor Oil 3501
90 Circuit Diagrams 3503
Table of Contents 3504
Abbreviation List 3506
Hydraulic Circuit Diagram 3512
Symbols Used in Hydraulic Circuit Diagram 3512
Hydraulic Circuit Diagram 3517
Hydraulic Auto-Greasing Diagram (Serial Number: 83001 to 84688) 3519
Hydraulic Auto-Greasing Diagram (Serial Number: 84689 and up) 3521
Electrical Circuit Diagram 3523
Symbols Used in Electric Circuit Diagram 3523
Electrical Circuit Diagram of Machine (Machine with KOMTRAX Terminal) (1/7) 3527
Electrical Circuit Diagram of Machine (Machine with KOMTRAX Terminal) (2/7) 3529
Electrical Circuit Diagram of Machine (Machine with KOMTRAX Terminal) (3/7) 3531
Electrical Circuit Diagram of Machine (Machine with KOMTRAX Terminal) (4/7) 3533
Electrical Circuit Diagram of Machine (Machine with KOMTRAX Terminal) (5/7) 3535
Electrical Circuit Diagram of Machine (Machine with KOMTRAX Terminal) (6/7) 3537
Electrical Circuit Diagram of Machine (Machine with KOMTRAX Terminal) (7/7) 3539
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (1/6) 3541
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (2/6) 3543
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (3/6) 3545
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (4/6) 3547
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (5/6) 3549
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (6/6) 3551
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (1/6) 3553
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (2/6) 3555
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (3/6) 3557
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (4/6) 3559
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (5/6) 3561
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (6/6) 3563
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 86600 and Up) (1/8) 3565
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 86600 and Up) (2/8) 3567
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 86600 and Up) (3/8) 3569
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 86600 and Up) (4/8) 3571
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 86600 and Up) (5/8) 3573
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 86600 and Up) (6/8) 3575
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 86600 and Up) (7/8) 3577
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 86600 and Up) (8/8) 3579
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (1/9) 3581
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (2/9) 3583
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (3/9) 3585
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (4/9) 3587
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (5/9) 3589
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (6/9) 3591
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (7/9) 3593
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (8/9) 3595
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (9/9) 3597
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (1/10) 3599
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (2/10) 3601
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (3/10) 3603
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (4/10) 3605
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (5/10) 3607
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (6/10) 3609
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (7/10) 3611
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (8/10) 3613
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (9/10) 3615
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 83001 to 86599) (10/10) 3617
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (1/11) 3619
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (2/11) 3621
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (3/11) 3623
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (4/11) 3625
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (5/11) 3627
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (6/11) 3629
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (7/11) 3631
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (8/11) 3633
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (9/11) 3635
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (10/11) 3637
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 86600 and Up) (11/11) 3639
Index 3641

DESCRIPTION:

Komatsu WA270-8 Wheel Loader Shop Manual SEN06600-14 – PDF DOWNLOAD 

SERIAL NUMBERS 83001 and up

Foreword, Safety, Basic Information
How to Read the Shop Manual
• Some of the attachments and options described in this shop manual may not be available in some areas. If
they are required, consult your Komatsu distributor.
• The materials and specifications are subject to change without notice.
• Shop Manuals are available for “machine part” and “engine part”. For the engine unit, see the shop manual
for the machine which has the same engine model.
• Actual machine may differ from the images which are contained in this manual. A typical model is shown in
the illustrations of this shop manual.
• The caution lamps, pilot lamps, and symbols of the switches on the machine monitor can be different in
accordance with the machine.
• For details of the symbols shown on the machine monitor, see Structure and Operation, “Caution
Lamps Shown on Machine Monitor” and “Pilot Lamps Shown on Machine Monitor”.
• For details of the switches of the machine monitor, see Testing and Adjusting, “Set and Operate Machine
Monitor”.
• For details of the switches, see the “Operation and Maintenance Manual”.
• All “AdBlue/DEF” shown on the machine monitor is referred to as “DEF” in the shop manual. Some machine
monitors installed to the product show “DEF” as “AdBlue/DEF” in the service mode. Thus, be sure to recognize
that “DEF” and “AdBlue/DEF” are the same when you read the shop manual.
Composition of the Shop Manual
This shop manual contains technical information necessary to perform services in workshops. It is divided into
the following chapters for the ease of use.
00 Index and Foreword
This section describes the index, foreword, safety, and basic information.
01 Specification
This section describes the specifications of the machine.
10 Structure and Function
This section describes the structure and operation of each component with respect to each system. “Structure
and Function” is helpful in not only understanding the structure of each component but performing troubleshooting.
20 Standard Value Table
This section describes the standard values for new machine and failure criteria for testing and adjusting, and
troubleshooting. Use the standard values table to check the standard values for testing and adjusting, and judge
troubles in troubleshooting.
30 Testing and Adjusting
This section describes the measuring tools and measuring methods for testing and adjusting as well as the adjusting
method of each part. The standard values and repair limit for TESTING AND ADJUSTING are described
in “Standard Value Table”.
40 Troubleshooting
This section describes troubleshooting of failure part and its remedy method on the occurrence of the failure.
Descriptions of troubleshooting are sorted by failure mode.

S.V 29/12/24