Komatsu WA320-8 Wheel Loader Shop Manual SEN06597-14 PDF

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Komatsu WA320-8 Wheel Loader Shop Manual SEN06597-14 – PDF DOWNLOAD

FILE DETAILS:

Komatsu WA320-8 Wheel Loader Shop Manual SEN06597-14 – PDF DOWNLOAD 

Language : English
Pages : 3666
Downloadable : Yes
File Type : PDF

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TABLE OF CONTENTS:

Komatsu WA320-8 Wheel Loader Shop Manual SEN06597-14 – PDF DOWNLOAD 

SERIAL NUMBERS 85001 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: WA320-8 105
Specifications 107
Specifications: WA320-8 107
Weight Table 112
Weight Table: WA320-8 112
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 400
Final Drive 404
Combination Switch 406
Work Equipment System 410
Layout Drawing of Work Equipment System 410
Work Equipment Control System 412
Work Equipment Lever Operation Function 412
PZ Auto Tilt-in Compensation Control Function 412
Work Equipment Lock System 413
Work Equipment Lock System Diagram (Applicable Machine: 85001 to 87648) 413
Work Equipment Lock System Diagram (Applicable Machine: 87649 and Up) 413
Function of Work Equipment Lock System 414
Bucket Positioner System 415
Bucket Positioner System Diagram 415
Function of Bucket Positioner System 415
Operation of Bucket Positioner System 417
Fork Positioner System 419
Fork Positioner System Diagram 419
Function of Fork Positioner System 419
Operation of Fork Positioner System 420
Remote Positioner System 423
Remote Boom Positioner System Diagram 423
Function of Remote Boom Positioner System 423
ECSS 426
ECSS Diagram 426
Function of ECSS 426
Operation of ECSS 426
Component Parts of Work Equipment System 428
Self-Pressure Reducing Valve 428
Work Equipment Lock Solenoid Valve 433
Pilot Circuit Accumulator 434
ECSS Circuit Accumulator 435
Multifunction Mono-Lever 436
Multifunction Mono-Lever PPC Valve 438
Steering System 443
Layout Drawing of Steering System 443
Steering Column 444
Structure of Steering Column 444
Component Parts of Steering System 445
Priority Valve 445
Orbitrol Valve 448
Cushion Valve 453
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
Brake Circuit Accumulator 468
Parking Brake Solenoid Valve 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 483
Function of Auto-Greasing System 485
Auto-Greasing System 486
Auto-Greasing Pump 486
Undercarriage and Frame 487
Frame, Axle Mount and Center Hinge Pin 487
Structure of Frame, Axle Mount and Center Hinge Pin 487
Function of Frame, Axle Mount and Center Hinge Pin 491
Tires 492
Features of Radial Tire When Compared with Bias Tire 492
Structure of Radial Tire 492
Function of Radial Tire 493
Structure of Bias Tire 493
Function of Bias Tire 493
Work Equipment 494
Structure of Work Equipment 494
Structure of Bucket 495
CAB Related Parts 496
ROPS CAB 496
Structure of ROPS CAB (Machine with KOMTRAX Terminal) 496
Structure of ROPS CAB (Machine with Gateway Function Controller) 497
Function of ROPS CAB 497
CAB Mount 498
Structure of CAB Mount 498
Function of CAB Mount 498
20 Standard Value Table 499
Table of Contents 500
Abbreviation List 501
Standard Value Table for Engine 507
Standard Value Table for Engine: WA320-8 507
Standard Value Table for Machine 511
Standard Value Table for Machine: WA320-8 511
Machine Posture and Procedures to Measure Performance 524
30 Testing and Adjusting 527
Table of Contents 528
Precautions Before Work 532
Abbreviation List 533
Related Information on Testing and Adjusting 539
Differences In Machine Monitor Symbols 539
Tools for Testing and Adjusting 540
Sketch of Tools for Testing and Adjusting 549
Engine and Cooling System 550
Examine Engine Speed 550
How to Examine Engine Speed 550
Examine Boost Pressure 553
How to Examine Boost Pressure on Machine Monitor 553
How to Examine Boost Pressure by Testing Tool 554
Examine Exhaust Gas Temperature 556
How to Examine Exhaust Gas Temperature 556
Examine Exhaust Gas Color 558
How to Examine Exhaust Gas Color with the Handy Smoke Checker 558
How to Examine Exhaust Gas Color with Smoke Meter 560
Examine Mass Air Flow and Temperature Sensor 562
How to Examine Mass Air Flow and Temperature Sensor 562
Examine and Adjust Valve Clearance 564
How to Examine Valve Clearance 564
How to Adjust Valve Clearance 565
Examine Compression Pressure 566
How to Examine Compression Pressure 566
Examine Blowby Pressure 571
How to Examine Blowby Pressure 571
Examine Engine Oil Pressure 574
How to Examine Engine Oil Pressure 574
Examine EGR Valve and VGT Oil Pressure 576
How to Examine EGR Valve and VGT Oil Pressure 576
Examine Fuel Pressure 578
How to Examine Fuel Pressure 579
Examine Fuel Discharge, Return and Leakage 584
How to Examine Fuel Discharge, Return, and Leakage 585
Bleed Air from Fuel System 591
How to Bleed Air from Fuel System 591
Examine Fuel Circuit for Leakage 593
How to Examine Fuel System for Leakage 593
Handle Cylinder Cut-out Mode Operation 595
Handle No-Injection Cranking Operation 596
Examine KDPF, SCR and Muffler Stack for Looseness and Damage 597
How to Examine KDPF, SCR and Muffler Stack for Looseness and Damage 597
Examine Installed Condition of Cylinder Heads and Manifolds 598
How to Examine Installed Condition of Cylinder Heads and Manifolds 598
Examine Engine Piping for Damage and Looseness 599
How to Examine Engine Piping for Damage and Looseness 599
Examine and Adjust Air Conditioner Compressor Belt Tension 600
How to Examine Air Conditioner Compressor Belt 600
How to Adjust Air Conditioner Compressor Belt 600
Examine Alternator Belt 602
How to Examine Alternator Belt 602
Examine Automatic Tensioner 604
How to Examine Automatic Tensioner 604
Write Correction for Ash in Soot Accumulation to Engine Controller 607
How to Write Correction for Ash in Soot Accumulation to Engine Controller 607
Examine SCR Related Functions 608
Examine DEF Pump Raised Pressure 612
Examine Injection Volume from DEF Injector 615
Examine DEF Line Heater Relay 1 620
Examine DEF Line Heater Relay 2 624
Examine DEF Pump Heater Relay 628
Examine DEF Tank Heater Valve 632
Examine SCR Denitration Efficiency 636
Clean DEF Tank 640
How to Clean DEF Tank 640
Clean DEF Pump 644
How to Clean DEF Pump 644
Power Train 650
Examine and Adjust HST Oil Pressure 650
How to Examine HST Oil Pressure 650
How to Adjust HST Oil Pressure 652
Examine the Control Pressure of Transfer Clutch 654
How to Examine the Control Pressure of Transfer Clutch 654
Examine Drive Shaft for Looseness, Backlash, and Damage 656
How to Examine Drive Shaft for Looseness, Backlash, and Damage 656
Steering System 657
Examine Steering Wheel 657
How to Examine Steering Wheel 657
Examine and Adjust Steering Circuit Oil Pressure 659
How to Examine Steering Circuit Oil Pressure with the Machine Monitor 659
How to Examine Steering Circuit Pressure with Test Tools 660
How to Adjust Steering Circuit Oil Pressure 660
Bleed Air from Steering Cylinder Circuit 662
How to Bleed Air from Steering Cylinder Circuit 662
Brake System 663
Release Remained Pressure in Brake Accumulator Circuit 663
How to Release Remained Pressure in Brake Accumulator Circuit 663
Examine Wheel Brake Oil Pressure 664
How to Examine Wheel Brake Oil Pressure 664
Examine and Adjust Brake Accumulator Charge Pressure 666
How to Examine Brake Accumulator Charge Pressure 666
How to Adjust Brake Accumulator Charge Pressure 667
Bleed Air from Brake Circuit 668
How to Bleed Air from Brake Circuit 668
Examine Brake Performance 670
How to Examine Brake Performance 670
Examine Brake Pedal 671
How to Examine Brake Pedal 671
Examine Pressure Decrease of Wheel Brake 672
How to Examine Pressure Decrease of Wheel Brake 673
Examine Wear of Wheel Brake Disc 675
How to Examine Wear of Wheel Brake Disc 675
Examine Parking Brake Oil Pressure 677
How to Examine Parking Brake Oil Pressure 677
Examine Parking Brake Performance 679
How to Examine Parking Brake Performance 679
Release Parking Brake Manually 680
How to Release Parking Brake Manually 680
Examine Wear Volume of Parking Brake Disc 681
How to Examine Wear Quantity of Parking Brake Disc 681
Hydraulic System 682
Release Remained Pressure from Work Equipment Circuit 682
How to Release Remained Pressure from Work Equipment Circuit 682
Examine and Adjust Work Equipment Oil Pressure 684
How to Examine Work Equipment Oil Pressure 684
How to Adjust Work Equipment Oil Pressure 688
Examine and Adjust Work Equipment PPC Oil Pressure 690
How to Examine Work Equipment PPC Oil Pressure 690
How to Adjust Work Equipment PPC Oil Pressure 692
Bleed Air from Work Equipment Circuit 694
How to Bleed Air from Work Equipment Circuit 694
Examine Cooling Fan Speed 696
How to Examine Cooling Fan Speed 696
Examine Cooling Fan Circuit Oil Pressure 697
How to Examine Cooling Fan Circuit Oil Pressure 697
Bleed Air from Cooling Fan Circuit 700
How to Bleed Air from Cooling Fan Circuit 700
Examine ECSS Accumulator Nitrogen Gas Pressure and Charge Accumulator with Nitrogen Gas 702
How to Examine ECSS Accumulator Nitrogen Gas Pressure 702
How to Charge ECSS Accumulator with Nitrogen Gas 704
Work Equipment 708
Examine and Adjust Bucket Positioner 708
How to Examine Bucket Positioner 708
How to Adjust Bucket Positioner 708
Examine and Adjust Boom Potentiometer Lever 710
How to Examine Boom Potentiometer Lever 710
How to Adjust Boom Potentiometer Lever 710
CAB Related Parts 711
Examine Directional Lever 711
How to Examine Directional Lever 711
Examine Multifunction Mono-Lever 712
How to Examine Multifunction Mono-Lever 712
Examine Accelerator Pedal 714
How to Examine Accelerator Pedal 714
Adjust Play of Operator Seat 716
How to Adjust Play of Operator Seat 716
Electrical System 717
Set and Adjust Each Equipment 717
Set and Operate Machine Monitor 721
Operator Mode 725
Function to Show Technician Identification Status Screen 725
Function to Show Operator Identification Input Screen 725
Examine Function by LCD (Liquid Crystal Display) 726
Examine Function of Service Meter and Odometer 727
How to Set Usage Limitation and Change Maintenance Password 727
Service Mode 731
How to Operate Service Mode 731
How to See Pre-defined Monitoring Information 734
How to Examine Self-Define Monitor Information 741
Abnormality Record Menu 753
How to See Maintenance Record 758
Maintenance Mode Setting 760
How to Set Phone Number Entry 765
Default Menu 767
Diagnostic Tests Menu 782
Adjustment Menu 793
No-Injection Cranking Operation 827
KOMTRAX Settings Menu 829
How to Show Service Message 834
How to Start Up KOMTRAX Terminal (Machine with KOMTRAX Terminal) 836
How to Stop Use of KOMTRAX Terminal (Machine with KOMTRAX Terminal) 840
How to Start Up KOMTRAX System (Machine with Gateway Function Controller) 842
How to Stop Use of KOMTRAX System (Machine with Gateway Function Controller) 848
Adjust Rearview Camera Angle 850
How to Adjust Rearview Camera Angle 850
Set Region of Bluetooth(R) Compatible Radio 852
How to Set Region of Bluetooth(R) Compatible Radio 852
Handle Voltage Circuit of Engine Controller 854
Handle Battery Disconnect Switch (Machine with KOMTRAX Terminal) 855
Handle Battery Disconnect Switch (Machine with Gateway Function Controller) 856
Examine Diodes 857
How to Examine Diodes by Digital Tester 857
How to Examine Diodes by Analog Tester 857
Auto-Greasing Device 858
Bleed the Air in Auto-Greasing System 858
How to Bleed the Air in Auto-Greasing System 858
Change Lubrication Time and Lubrication Interval 861
How to Change Lubrication Time and Lubrication Interval 862
Pm Clinic 864
Pm Clinic Service 864
Pm Clinic Check Sheet: WA320-8 866
40 Troubleshooting 873
Table of Contents 874
Precautions Before Work 887
Abbreviation List 888
Related Information to Troubleshooting 894
General Troubleshooting Points 894
Troubleshooting Points for Urea SCR System 895
Sequence of Events in Troubleshooting 909
Checks Before Troubleshooting 911
Inspection Procedure Before Troubleshooting 913
Walk-Around Check 913
Test in Accordance with Testing Procedure 915
Examine Fuel Level and Type 915
Examine for Impure Ingredient in Fuel 915
Examine DEF Level and Type 916
Examine Fuel Prefilter 916
Examine Fuel Main Filter 918
Examine Engine Oil Level (Oil Quantity in Oil Pan) and Type 919
Examine Coolant Level (Reservoir Tank) 920
Examine Air Cleaner Clogging 921
Clean Outer Element 922
Replace Element 923
Examine Hydraulic Oil Level 925
Examine Hydraulic Oil Strainer 925
Examine Hydraulic Oil Filter 928
Examine the Oil Level in the Transfer Case 928
Examine Oil Level in Front Axle Case 930
Examine Oil Level in Rear Axle Case 931
Bleed Air from Fuel System 931
Bleed Air from Hydraulic System 931
How to Examine Electric Equipment 932
Preparation for Troubleshooting of Electrical System 937
Procedure for Troubleshooting 946
Symptom and Troubleshooting Numbers 948
Information Shown in Troubleshooting Table 952
How to Diagnose Open Circuit of Hydraulic Pressure Sensor System Wiring Harness 954
Connector List and Layout (Machine with KOMTRAX Terminal) 957
Connector List and Layout (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) 978
Connector List and Layout (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) 999
Connector Contact Connection Table 1020
T-Branch Box and T-Branch Adapter Table 1060
Fuse Location Table (Machine with KOMTRAX Terminal) 1066
Fuse Location Table (Machine with Gateway Function Controller) 1069
Precautions When You Clean and Replace KDPF (KCSF and KDOC) 1072
Prepare Troubleshoot Machine Monitor 1076
Procedure to Make Harness Checker on Machine Monitor LCD Unit 1078
Prepare Short Circuit Electrical Connector (For Failure Codes [CA1883] and [CA3135]) 1084
Failure Code Table 1086
Troubleshooting by Failure Code (Display of Code) 1107
Failure Code [2F00MA] 1107
Failure Code [2F00MB] 1110
Failure Code [2G42ZG] 1112
Failure Code [2G43ZG] 1114
Failure Code [6091NX] 1116
Failure Code [7RHYKA] 1118
Failure Code [7RHYKB] 1120
Failure Code [7RHYKY] 1122
Failure Code [879AKA] 1124
Failure Code [879AKB] 1126
Failure Code [879BKA] 1128
Failure Code [879BKB] 1130
Failure Code [879CKA] 1132
Failure Code [879CKB] 1134
Failure Code [879DKZ] 1136
Failure Code [879EMC] 1138
Failure Code [879FMC] 1139
Failure Code [989FN1] 1140
Failure Code [989L00] 1141
Failure Code [989M00] 1142
Failure Code [989N00] 1143
Failure Code [A1U0N3] 1144
Failure Code [A1U0N4] 1146
Failure Code [AA10NX] 1148
Failure Code [AB00KE] 1150
Failure Code [AB00KY] 1152
Failure Code [AQ10N3] 1154
Failure Code [AS00N3] 1156
Failure Code [AS00R2] 1158
Failure Code [AS00R3] 1159
Failure Code [AS00R4] 1160
Failure Code [AS00R5] 1161
Failure Code [AS00R6] 1162
Failure Code [AS00ZK] 1163
Failure Code [AS10KM] 1164
Failure Code [AS10NR] 1165
Failure Code [AS10NT] 1166
Failure Code [B@BAZG] 1167
Failure Code [B@BAZK] 1168
Failure Code [B@BCNS] 1170
Failure Code [B@BCZK] 1171
Failure Code [B@C6NS] 1173
Failure Code [B@CRNS] 1175
Failure Code [CA115] 1176
Failure Code [CA122] 1177
Failure Code [CA123] 1179
Failure Code [CA131] 1181
Failure Code [CA132] 1183
Failure Code [CA144] 1186
Failure Code [CA145] 1188
Failure Code [CA153] 1190
Failure Code [CA154] 1193
Failure Code [CA187] 1195
Failure Code [CA221] 1197
Failure Code [CA222] 1199
Failure Code [CA227] 1201
Failure Code [CA234] 1202
Failure Code [CA238] 1203
Failure Code [CA239] 1205
Failure Code [CA249] 1207
Failure Code [CA256] 1209
Failure Code [CA271] 1211
Failure Code [CA272] 1213
Failure Code [CA322] 1215
Failure Code [CA323] 1217
Failure Code [CA324] 1219
Failure Code [CA325] 1221
Failure Code [CA331] 1223
Failure Code [CA332] 1225
Failure Code [CA343] 1227
Failure Code [CA351] 1228
Failure Code [CA352] 1229
Failure Code [CA356] 1232
Failure Code [CA357] 1234
Failure Code [CA386] 1237
Failure Code [CA428] 1238
Failure Code [CA429] 1240
Failure Code [CA431] 1242
Failure Code [CA432] 1245
Failure Code [CA435] 1249
Failure Code [CA441] 1251
Failure Code [CA442] 1253
Failure Code [CA449] 1254
Failure Code [CA451] 1255
Failure Code [CA452] 1257
Failure Code [CA488] 1259
Failure Code [CA515] 1260
Failure Code [CA516] 1262
Failure Code [CA553] 1264
Failure Code [CA555] 1265
Failure Code [CA556] 1266
Failure Code [CA559] 1267
Failure Code [CA595] 1270
Failure Code [CA687] 1271
Failure Code [CA689] 1273
Failure Code [CA691] 1276
Failure Code [CA692] 1278
Failure Code [CA697] 1280
Failure Code [CA698] 1281
Failure Code [CA731] 1282
Failure Code [CA778] 1284
Failure Code [CA1117] 1289
Failure Code [CA1664] 1290
Failure Code [CA1669] 1292
Failure Code [CA1673] 1293
Failure Code [CA1677] 1294
Failure Code [CA1678] 1295
Failure Code [CA1682] 1296
Failure Code [CA1683] 1301
Failure Code [CA1684] 1303
Failure Code [CA1686] 1305
Failure Code [CA1691] 1306
Failure Code [CA1694] 1309
Failure Code [CA1695] 1312
Failure Code [CA1696] 1313
Failure Code [CA1712] 1315
Failure Code [CA1713] 1318
Failure Code [CA1714] 1320
Failure Code [CA1715] 1321
Failure Code [CA1776] 1322
Failure Code [CA1777] 1325
Failure Code [CA1843] 1328
Failure Code [CA1844] 1330
Failure Code [CA1879] 1333
Failure Code [CA1881] 1336
Failure Code [CA1883] 1338
Failure Code [CA1885] 1342
Failure Code [CA1887] 1344
Failure Code [CA1921] 1346
Failure Code [CA1922] 1349
Failure Code [CA1942] 1354
Failure Code [CA1993] 1355
Failure Code [CA2185] 1358
Failure Code [CA2186] 1360
Failure Code [CA2249] 1362
Failure Code [CA2271] 1363
Failure Code [CA2272] 1366
Failure Code [CA2288] 1369
Failure Code [CA2311] 1370
Failure Code [CA2349] 1371
Failure Code [CA2353] 1374
Failure Code [CA2357] 1376
Failure Code [CA2381] 1377
Failure Code [CA2382] 1380
Failure Code [CA2383] 1383
Failure Code [CA2386] 1386
Failure Code [CA2387] 1388
Troubleshooting Flowchart 1392
Failure Code [CA2555] 1393
Failure Code [CA2556] 1396
Failure Code [CA2637] 1398
Failure Code [CA2639] 1400
Failure Code [CA2771] 1403
Failure Code [CA2777] 1409
Failure Code [CA2976] 1412
Failure Code [CA3133] 1414
Failure Code [CA3134] 1417
Failure Code [CA3135] 1419
Failure Code [CA3142] 1423
Failure Code [CA3143] 1424
Failure Code [CA3144] 1425
Failure Code [CA3146] 1427
Failure Code [CA3147] 1428
Failure Code [CA3148] 1429
Failure Code [CA3151] 1431
Failure Code [CA3165] 1437
Failure Code [CA3229] 1439
Failure Code [CA3231] 1441
Failure Code [CA3232] 1443
Failure Code [CA3235] 1447
Failure Code [CA3239] 1449
Failure Code [CA3241] 1452
Failure Code [CA3242] 1455
Failure Code [CA3251] 1458
Failure Code [CA3253] 1460
Failure Code [CA3254] 1463
Failure Code [CA3255] 1466
Failure Code [CA3256] 1470
Failure Code [CA3311] 1472
Failure Code [CA3312] 1474
Failure Code [CA3313] 1477
Failure Code [CA3314] 1478
Failure Code [CA3315] 1479
Failure Code [CA3316] 1482
Failure Code [CA3317] 1483
Failure Code [CA3318] 1484
Failure Code [CA3319] 1487
Failure Code [CA3321] 1488
Failure Code [CA3322] 1490
Failure Code [CA3419] 1493
Failure Code [CA3421] 1495
Failure Code [CA3497] 1497
Failure Code [CA3498] 1498
Failure Code [CA3543] 1499
Failure Code [CA3545] 1506
Failure Code [CA3547] 1508
Failure Code [CA3558] 1509
Failure Code [CA3559] 1511
Failure Code [CA3562] 1513
Failure Code [CA3563] 1515
Failure Code [CA3567] 1518
Failure Code [CA3568] 1521
Failure Code [CA3571] 1527
Failure Code [CA3572] 1529
Failure Code [CA3574] 1531
Failure Code [CA3575] 1534
Failure Code [CA3577] 1536
Failure Code [CA3578] 1538
Failure Code [CA3582] 1540
Failure Code [CA3583] 1548
Failure Code [CA3596] 1550
Failure Code [CA3649] 1553
Failure Code [CA3681] 1555
Failure Code [CA3682] 1560
Failure Code [CA3713] 1566
Failure Code [CA3717] 1569
Failure Code [CA3718] 1570
Failure Code [CA3725] 1571
Failure Code [CA3741] 1574
Failure Code [CA3748] 1575
Failure Code [CA3751] 1578
Failure Code [CA3755] 1580
Failure Code [CA3866] 1582
Failure Code [CA3867] 1586
Failure Code [CA3868] 1589
Failure Code [CA3899] 1593
Failure Code [CA3911] 1595
Failure Code [CA3912] 1599
Failure Code [CA3932] 1601
Failure Code [CA3933] 1603
Failure Code [CA3934] 1605
Failure Code [CA3935] 1608
Failure Code [CA3936] 1610
Failure Code [CA4151] 1612
Failure Code [CA4152] 1616
Failure Code [CA4155] 1620
Failure Code [CA4156] 1622
Failure Code [CA4157] 1625
Failure Code [CA4158] 1627
Failure Code [CA4159] 1628
Failure Code [CA4161] 1629
Failure Code [CA4162] 1632
Failure Code [CA4163] 1635
Failure Code [CA4164] 1637
Failure Code [CA4165] 1639
Failure Code [CA4166] 1641
Failure Code [CA4168] 1643
Failure Code [CA4169] 1646
Failure Code [CA4171] 1648
Failure Code [CA4249] 1651
Failure Code [CA4251] 1653
Failure Code [CA4259] 1655
Failure Code [CA4261] 1658
Failure Code [CA4277] 1661
Failure Code [CA4281] 1665
Failure Code [CA4459] 1668
Failure Code [CA4461] 1670
Failure Code [CA4658] 1673
Failure Code [CA4731] 1677
Failure Code [CA4732] 1678
Failure Code [CA4739] 1679
Failure Code [CA4768] 1680
Failure Code [CA4769] 1682
Failure Code [CA4842] 1684
Failure Code [CA4952] (Machine with KOMTRAX Terminal) 1688
Failure Code [CA4952] (Machine with Gateway Function Controller) 1690
Failure Code [CA5115] 1692
Failure Code [CA5179] 1695
Failure Code [CA5181] 1697
Failure Code [CA5383] 1699
Failure Code [D103KA] 1701
Failure Code [D103KB] 1703
Failure Code [D103KY] 1705
Failure Code [D103MC] 1707
Failure Code [D104KA] 1709
Failure Code [D104KB] 1711
Failure Code [D104KY] 1713
Failure Code [D104MC] 1715
Failure Code [D110L4] 1717
Failure Code [D160KA] 1719
Failure Code [D160KY] 1721
Failure Code [D191KA] 1722
Failure Code [D191KB] 1724
Failure Code [D191KY] 1726
Failure Code [D192KA] 1727
Failure Code [D192KB] 1728
Failure Code [D192KY] 1729
Failure Code [D19JKZ] 1730
Failure Code [D1B0KA] 1732
Failure Code [D1B0KB] 1734
Failure Code [D1B0KY] 1736
Failure Code [D1B0MC] 1738
Failure Code [D1E6KA] 1740
Failure Code [D1E6KB] 1742
Failure Code [D1E6KY] 1744
Failure Code [D5ZHKA] 1746
Failure Code [D5ZHKB] 1748
Failure Code [D5ZHL6] 1750
Failure Code [D811MC] (Machine with KOMTRAX Terminal) 1751
Failure Code [D811MC] (Machine with Gateway Function Controller) 1752
Failure Code [D862KA] (Machine with KOMTRAX Terminal) 1753
Failure Code [D862KA] (Machine with Gateway Function Controller) 1754
Failure Code [D8ALKA] (Machine with KOMTRAX Terminal) 1755
Failure Code [D8ALKA] (Machine with Gateway Function Controller) 1757
Failure Code [D8ALKB] (Machine with KOMTRAX Terminal) 1759
Failure Code [D8ALKB] (Machine with Gateway Function Controller) 1761
Failure Code [D8AQK4] (Machine with KOMTRAX Terminal) 1763
Failure Code [D8AQK4] (Machine with Gateway Function Controller) 1767
Failure Code [D8AQKR] (Machine with KOMTRAX Terminal) 1771
Failure Code [D8AQKR] (Machine with Gateway Function Controller) 1775
Failure Code [D8G1KT] 1779
Failure Code [D8G6KT] 1780
Failure Code [DAF0KT] 1781
Failure Code [DAF0MB] 1782
Failure Code [DAF0MC] 1783
Failure Code [DAF3KK] 1784
Failure Code [DAF8KB] 1786
Failure Code [DAFDKB] 1787
Failure Code [DAFGMC] (Machine with KOMTRAX Terminal) 1789
Failure Code [DAFGMC] (Machine with Gateway Function Controller) 1790
Failure Code [DAFLKA] (Machine with KOMTRAX Terminal) 1791
Failure Code [DAFLKA] (Machine with Gateway Function Controller) 1793
Failure Code [DAFLKB] (Machine with KOMTRAX Terminal) 1795
Failure Code [DAFLKB] (Machine with Gateway Function Controller) 1797
Failure Code [DAFQKR] (Machine with KOMTRAX Terminal) 1799
Failure Code [DAFQKR] (Machine with Gateway Function Controller) 1804
Failure Code [DAJ0KK] 1809
Failure Code [DAJ0KT] 1812
Failure Code [DAJ0MC] 1813
Failure Code [DAJ1KA] 1814
Failure Code [DAJ2KK] 1816
Failure Code [DAJ2KT] 1819
Failure Code [DAJ4KB] 1822
Failure Code [DAJ4KZ] 1824
Failure Code [DAJ5KX] (Applicable Machine: 85001 to 87648) 1826
Failure Code [DAJ5KX] (Applicable Machine: 87649 and Up) 1828
Failure Code [DAJ6KX] (Applicable Machine: 85001 to 87648) 1830
Failure Code [DAJ6KX] (Applicable Machine: 87649 and Up) 1832
Failure Code [DAJ9KQ] 1834
Failure Code [DAJLKA] (Machine with KOMTRAX Terminal) 1835
Failure Code [DAJLKA] (Machine with Gateway Function Controller) 1837
Failure Code [DAJLKB] (Machine with KOMTRAX Terminal) 1839
Failure Code [DAJLKB] (Machine with Gateway Function Controller) 1841
Failure Code [DAJQKR] (Machine with KOMTRAX Terminal) 1843
Failure Code [DAJQKR] (Machine with Gateway Function Controller) 1848
Failure Code [DAJRKR] 1853
Failure Code [DAJRMA] 1858
Failure Code [DAZ9KQ] 1859
Failure Code [DAZQKR] (Machine with KOMTRAX Terminal) 1860
Failure Code [DAZQKR] (Machine with Gateway Function Controller) 1864
Failure Code [DB2QKR] (Machine with KOMTRAX Terminal) 1868
Failure Code [DB2QKR] (Machine with Gateway Function Controller) 1874
Failure Code [DB2RKR] 1880
Failure Code [DD1ALD] 1885
Failure Code [DDAAL6] 1887
Failure Code [DDB2L4] 1889
Failure Code [DDB6L4] 1891
Failure Code [DDD7KA] 1893
Failure Code [DDD7KY] 1895
Failure Code [DDK3KA] 1897
Failure Code [DDK3KB] 1900
Failure Code [DDK6KA] 1903
Failure Code [DDK6KB] 1906
Failure Code [DDNRLD] (Applicable Machine: 85001 to 87648) 1909
Failure Code [DDNRLD] (Applicable Machine: 87649 and Up) 1911
Failure Code [DF10KA] 1913
Failure Code [DF10KB] 1916
Failure Code [DGH1KX] 1919
Failure Code [DGR2KB] 1921
Failure Code [DGR2KZ] 1923
Failure Code [DHA4KA] 1925
Failure Code [DHHBKA] 1927
Failure Code [DHHBKY] 1929
Failure Code [DHHCKA] 1931
Failure Code [DHHCKY] 1933
Failure Code [DHPCKA] 1935
Failure Code [DHPCKY] 1937
Failure Code [DHPEKA] 1939
Failure Code [DHPEKY] 1941
Failure Code [DHS8KA] 1943
Failure Code [DHS8KY] 1945
Failure Code [DHS9KA] 1947
Failure Code [DHS9KY] 1949
Failure Code [DHSDKA] 1951
Failure Code [DHSDKY] 1953
Failure Code [DHSNKA] 1955
Failure Code [DHSNKY] 1957
Failure Code [DHT8ZG] 1959
Failure Code [DHTCL6] 1960
Failure Code [DJF1KA] 1962
Failure Code [DK55KA] 1963
Failure Code [DK55KY] 1965
Failure Code [DK55L5] 1967
Failure Code [DK5DKA] (Applicable Machine: 85001 to 87648) 1968
Failure Code [DK5DKA] (Applicable Machine: 87649 and Up) 1971
Failure Code [DK5DKY] (Applicable Machine: 85001 to 87648) 1974
Failure Code [DK5DKY] (Applicable Machine: 87649 and Up) 1977
Failure Code [DK5DL8] (Applicable Machine: 85001 to 87648) 1980
Failure Code [DK5DL8] (Applicable Machine: 87649 and Up) 1984
Failure Code [DK5EKA] (Applicable Machine: 85001 to 87648) 1988
Failure Code [DK5EKA] (Applicable Machine: 87649 and Up) 1991
Failure Code [DK5EKY] (Applicable Machine: 85001 to 87648) 1994
Failure Code [DK5EKY] (Applicable Machine: 87649 and Up) 1997
Failure Code [DK70KA] 2000
Failure Code [DK70KY] 2002
Failure Code [DKA0KA] 2004
Failure Code [DKA0KY] 2007
Failure Code [DKA0L0] 2009
Failure Code [DLM3KA] 2011
Failure Code [DLM3LC] 2012
Failure Code [DLT3KX] (Applicable Machine: 85001 to 87648) 2014
Failure Code [DLT3KX] (Applicable Machine: 87649 and Up) 2016
Failure Code [DLT4KX] (Applicable Machine: 85001 to 87648) 2018
Failure Code [DLT4L0] 2020
Failure Code [DLT4LC] (Applicable Machine: 85001 to 87648) 2021
Failure Code [DLT4LC] (Applicable Machine: 87649 and Up) 2023
Failure Code [DPQ1KR] 2025
Failure Code [DPQ2KR] 2028
Failure Code [DPQ3KR] 2031
Failure Code [DSJ0KR] (Machine with KOMTRAX Terminal) 2035
Failure Code [DSJ0KR] (Machine with Gateway Function Controller) 2040
Failure Code [DT22KB] (Applicable Machine: 85001 to 87648) 2045
Failure Code [DT22KB] (Applicable Machine: 87649 and Up) 2047
Failure Code [DV00KB] 2049
Failure Code [DW26KA] 2050
Failure Code [DW26KB] 2052
Failure Code [DW26KY] 2054
Failure Code [DW4BKA] (Applicable Machine: 85001 to 87648) 2056
Failure Code [DW4BKA] (Applicable Machine: 87649 and Up) 2058
Failure Code [DW4BKB] (Applicable Machine: 85001 to 87648) 2060
Failure Code [DW4BKB] (Applicable Machine: 87649 and Up) 2062
Failure Code [DW4BKY] (Applicable Machine: 85001 to 87648) 2064
Failure Code [DW4BKY] (Applicable Machine: 87649 and Up) 2065
Failure Code [DW4RKA] 2067
Failure Code [DW4RKB] 2069
Failure Code [DW4RKY] 2071
Failure Code [DWM1KA] (Applicable Machine: 85001 to 87648) 2073
Failure Code [DWM1KA] (Applicable Machine: 87649 and Up) 2074
Failure Code [DWM1KB] (Applicable Machine: 85001 to 87648) 2076
Failure Code [DWM1KB] (Applicable Machine: 87649 and Up) 2078
Failure Code [DWM1KY] (Applicable Machine: 85001 to 87648) 2080
Failure Code [DWM1KY] (Applicable Machine: 87649 and Up) 2081
Failure Code [DWN6KA] 2083
Failure Code [DWN6KB] 2085
Failure Code [DWN6KY] 2087
Failure Code [DWN8KA] 2088
Failure Code [DWN8KB] 2089
Failure Code [DWN8KY] 2090
Failure Code [DX19KA] 2091
Failure Code [DX19KB] 2093
Failure Code [DX19KY] 2095
Failure Code [DX20KA] 2097
Failure Code [DX20KB] 2099
Failure Code [DX20KY] 2101
Failure Code [DXAWKA] 2102
Failure Code [DXAWKB] 2105
Failure Code [DXAWKY] 2108
Failure Code [DXH7KA] 2111
Failure Code [DXH7KB] 2113
Failure Code [DXH7KY] 2115
Failure Code [DXH8KA] 2117
Failure Code [DXH8KB] 2119
Failure Code [DXH8KY] 2121
Failure Code [DXHJKA] 2123
Failure Code [DXHJKB] 2125
Failure Code [DXHJKY] 2127
Failure Code [DXHKKA] 2128
Failure Code [DXHKKB] 2130
Failure Code [DXHKKY] 2132
Failure Code [F313KA] 2133
Failure Code [F313KB] 2135
Failure Code [F314KA] 2136
Failure Code [F314KB] 2138
Failure Code [F315KB] 2140
Failure Code [F315KY] 2142
Failure Code [F316KB] 2144
Failure Code [F316KY] 2146
Failure Code [F318KB] 2148
Failure Code [F318KY] 2150
Failure Code [F31AKB] 2151
Failure Code [F31AKY] 2153
Failure Code [F31BKB] 2155
Failure Code [F31BKY] 2157
Failure Code [F31CKB] 2159
Failure Code [F31CKY] 2161
Failure Code [F31DKB] 2163
Failure Code [F31DKY] 2165
Failure Code [F31EKB] 2167
Failure Code [F31EKY] 2169
Failure Code [FS10ZE] 2171
Failure Code [H2K0KA] 2172
Failure Code [H2K0KY] 2174
Failure Code [J141N1] 2176
Failure Code [LA00L3] 2177
Failure Code [M100N1] 2178
Failure Code [M400N1] 2179
Troubleshooting of Electrical System (E-Mode) 2180
Engine Does Not Start (Engine Does Not Crank) 2180
Manual Preheating System Does Not Operate 2188
Automatic Preheating System Does Not Operate 2191
While Preheating is in Operation, Preheating Monitor Does Not Come On 2194
The LCD Unit, LED Unit, and Meter Unit of the Machine Monitor Show Nothing 2196
LCD Unit on Machine Monitor Shows Nothing 2199
Backlight of LCD Unit on Machine Monitor is Abnormal (Backlight Goes Off or Flickers) 2201
LCD Screen on Machine Monitor Does Not Show Correctly 2203
Meter Unit Display on Machine Monitor is Abnormal 2205
Night Mode Lamp of Meter Unit on Machine Monitor is Abnormal 2208
LED Unit Lamp on Machine Monitor is Abnormal 2211
Night Mode Lamp of Switch Panel on Machine Monitor is Abnormal or Switches Do Not Operate Correctly 2213
Two Switches Operation of Switch Panel on Machine Monitor Does Not Operate 2216
Switch Panel Buzzer of Machine Monitor is Abnormal 2219
Some Items of Gauges and Caution Lamps on Machine Monitor are Not Shown Normally 2222
DEF Level is Not Shown Correctly 2223
Rearview Monitor Does Not Come On or Backlight Flickers 2226
Rearview Monitor Images are Not Shown Clearly 2229
Rearview Monitor Brightness Cannot be Adjusted 2233
Night Mode Lamp of Rearview Monitor is Abnormal 2237
Air Cleaner Clogging Indicator Lamp Does Not Come On 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 2242
Brake Oil Pressure Caution Lamp Does Not Come On When Front Brake Accumulator Oil Pressure is Low 2246
Brake Oil Pressure Caution Lamp Does Not Come On When Rear Brake Accumulator Oil Pressure is Low 2247
Indication of HST Oil Temperature Gauge Does Not Increase, or HST Oil Temperature Caution Lamp Does Not Come On 2248
When the Inching Pedal is Pushed, Inching Function Does Not Work or While the Pedal is Not Pushed, Inching Function Operates 2249
Fuel Gauge Does Not Show Normally 2251
Seatbelt Caution Lamp Does Not Show Normally 2253
Alarm Buzzer Does Not Operate 2254
Alarm Buzzer Does Not Stop 2255
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 2256
Setting Does Not Change While You Operate the Traction Control Switch 2259
The Remote Positioner Does Not Work or Cannot be Released 2261
The Bucket Positioner Does Not Work or Cannot be Released 2263
Parking Brake Does Not Operate Even If It is Applied, or the Brake Drags in Forward or Reverse Travel When Parking Brake is Released 2266
Directional Selector (FNR) Switch Mode is Not Selected or Not Released 2270
PZ Auto Tilt-in Does Not Work 2272
PZ Auto Tilt-in Does Not Work (Applicable Machine: 85001 to 87648) 2273
PZ Auto Tilt-in Does Not Work (Applicable Machine: 87649 and Up) 2276
Traction Level Does Not Show MAX When Max Traction Switch is Turned on 2279
ECSS Function Cannot be Selected or Cannot be Released 2281
ECSS Function Cannot be Selected or Cannot be Released (Applicable Machine: 85001 to 87648) 2282
ECSS Function Cannot be Selected or Cannot be Released (Applicable Machine: 87649 and Up) 2284
Horn Does Not Sound 2286
Horn Does Not Stop 2289
Headlamp, Clearance Lamp, and Tail Lamp Do Not Come On 2291
Clearance Lamp and Tail Lamp Do Not Come On or Go Out 2293
Clearance Lamp and Tail Lamp Do Not Come on or Go Out (For European Union) 2297
High and Low Beams of Headlamp Do Not Come On or Go Out 2301
High and Low Beams of Headlamp Do Not Come On or Go Out (EU Specification) 2305
Low Beam of Headlamp Does Not Come On or Go Out 2309
Low Beam of Headlamp Does Not Come On or Go Out (For European Union) 2311
High Beam of Headlamp Does Not Come On or Go Out 2313
High Beam of Headlamp Does Not Come On or Go Out (For European Union) 2315
Front Working Lamp Does Not Come On or Go Out 2317
Rear Working Lamp Does Not Come On or Go Out 2322
Turn Signal Lamp and Hazard Lamp Do Not Come On or Go Out 2326
Turn Signal Lamp Does Not Come On or Go Out 2329
Turn Signal Lamps Do Not Come On or Go Out (For European Union) 2332
Hazard Lamp Does Not Come On or Go Out 2335
Hazard Lamp Does Not Come On or Go Out (For European Union) 2339
Brake Lamp Does Not Come On or Stays Lit 2343
Brake Lamp Does Not Light or Stays Lighted (For European Union) 2347
Backup Lamp Does Not Come On or Stays Lit 2351
Backup Lamp Does Not Come On or Does Not Go Out (For European Union) 2355
Backup Buzzer Does Not Sound or Continues to Sound 2359
Front Wiper Does Not Operate 2361
Rear Wiper Does Not Operate 2365
Window Washer Does Not Operate 2368
KOMTRAX System Does Not Operate Correctly 2371
Auto-Greasing Pump Display Shows [FCS] 2372
Auto-Greasing Pump Display Shows [FLL] 2373
Auto-Greasing System Does Not Operate or Stop 2374
Troubleshooting for Hydraulic and Mechanical Systems (H Mode) 2375
Information Shown in Troubleshooting Table (H-Mode) 2375
Failure Mode and Cause Table 2376
Machine Can Not Move Forward or Reverse 2390
Machine Can Not Travel FORWARD (Machine Travels REVERSE Normally) 2393
Machine Can Not Travel REVERSE (Machine Travels FORWARD Normally) 2394
Travel Speed of FORWARD Travel and REVERSE Travel is Slow, or Power is Low 2395
Forward Travel Speed is Slow or Power is Low (Machine Travels REVERSE Normally) 2399
REVERSE Travel Speed is Slow or Power is Low (Machine Travels FORWARD Normally) 2400
Engine Speed Drops Largely or Engine Stops 2401
Machine Does Not Turn 2403
Steering Wheel is Heavy to Operate 2405
Machine Sways or Large Shocks are Made While Machine Turns 2407
Machine Unintentionally Turns to One Side When Machine Travels 2408
Wheel Brakes Do Not Operate or are Weak 2409
Wheel Brakes are Not Released or Drag 2411
Parking Brake Does Not Operate or is Weak 2412
Parking Brake is Not Released or Drags 2413
Boom Does Not Rise 2415
Boom Moves Slow or Lacks Lifting Force 2418
Rising Boom Slows Down at Specified Height 2421
Lift Cylinders Can Not Hold Bucket on Ground 2422
Hydraulic Drift of Boom is Large 2424
Boom Moves Up and Down During Operation 2425
Bucket Does Not Tilt Back 2426
Bucket Moves Slow or Lacks Tilt-Back Force 2429
Bucket Slows Down During Tilt Back Operation 2432
Bucket Cylinder Does Not Hold Bucket on Ground 2433
Hydraulic Drift of Bucket is Large 2435
Bucket Tilts Back and Forth When You Carry Load (Work Equipment Valve is in Hold) 2436
Boom and Bucket Control Levers Do Not Move Smoothly and are Heavy to Move 2437
Engine Speed Drops Largely or Engine Stops When You Operate Work Equipment 2438
Large Shocks are Made When Work Equipment Starts to Move and Stops 2439
When Single Work Equipment is Released Hydraulically, Other Work Equipment Moves 2441
ECSS Does Not Operate and Machine Pitches and Bounces 2442
Fan Speed is Abnormal (Too High or Low, or Does Not Rotate) 2443
Unusual Noise is Heard from Around Fan 2446
Troubleshooting of Engine (S-Mode) 2447
Information Shown in Troubleshooting Table (S-Mode) 2447
Engine Does Not Crank When Starting Switch is Turned to Start Position 2448
Engine Cranks but No Exhaust Smoke Comes Out 2449
Fuel is Sprayed but Engine Does Not Start (Misfiring: Engine Cranks but Does Not Start) 2450
Engine Startability is Unsatisfactory 2452
Engine Does Not Pick Up Smoothly 2454
Engine Stops During Operation 2456
Engine Does Not Rotate Smoothly 2458
Engine Lacks Output (or Lacks Power) 2459
KDPF Becomes Clogged in a Short Time 2461
Engine Oil Consumption is Excessive 2463
Engine Oil Becomes Dirty Quickly 2464
Fuel Consumption is Excessive 2465
Oil is in Coolant (or Coolant Spurts Back or Coolant Level Goes Down) 2466
Engine Oil Pressure Drops 2467
Fuel Mixes Into Engine Oil 2469
Water Mixes Into Engine Oil (Milky) 2470
Coolant Temperature Increases Too High (Overheat) 2471
Unusual Noise is Heard 2472
Vibration is Excessive 2473
Air Cannot be Bled from Fuel Circuit 2474
Active Regeneration is Done Frequently 2475
Active Regeneration Continues Long 2477
White Smoke is Exhausted During Active Regeneration 2478
DEF Consumption is Excessive 2479
Foreign Materials Enter DEF (DEF Increases) 2481
Troubleshooting for Auto-Greasing System 2482
Outline of Failure Display 2482
Troubleshooting for FCS 2483
Troubleshooting for Auto-Greasing Pump 2484
Replacement of Pump Element 2487
Troubleshooting for Grease Supply System 2488
Replace Auto-Greasing Controller 2490
Assembly procedure when disassembled in troubleshooting 2491
50 Disassembly and Assembly 2493
Table of Contents 2494
Precautions Before Work 2499
Abbreviation List 2500
Related Information on Disassembly and Assembly 2506
How to Read This Manual 2506
Coating Materials List 2507
Special Tool List 2512
Sketches of Special Tools 2535
Engine and Cooling System 2549
Remove and Install Supply Pump Assembly 2549
How to Remove Supply Pump Assembly 2550
How to Install Supply Pump Assembly 2554
Remove and Install Injector Assembly 2561
How to Remove Injector Assembly 2561
How to Install Injector Assembly 2569
Remove and Install Cylinder Head Assembly 2579
How to Remove Cylinder Head Assembly 2580
How to Install Cylinder Head Assembly 2591
Remove and Install EGR Valve Assembly 2606
How to Remove EGR Valve Assembly 2606
How to Install EGR Valve Assembly 2610
Remove and Install EGR Cooler Assembly 2614
How to Remove EGR Cooler Assembly 2614
How to Install EGR Cooler Assembly 2618
Remove and Install Starter Assembly 2622
How to Remove Starting Motor Assembly 2622
How to Install Starting Motor Assembly 2624
Remove and Install Air Conditioner Compressor Belt 2628
How to Remove Air Conditioner Compressor Belt 2628
How to Install Air Conditioner Compressor Belt 2629
Remove and Install Alternator Belt 2631
How to Remove Alternator Belt 2631
How to Install Alternator Belt 2634
Remove and Install Alternator Assembly 2637
How to Remove Alternator Assembly 2637
How to Install Alternator Assembly 2640
Remove and Install Automatic Tensioner 2644
How to Remove Automatic Tensioner 2644
How to Install Automatic Tensioner 2644
Remove and Install Radiator Assembly 2645
How to Remove Radiator Assembly 2645
How to Install Radiator Assembly 2648
Remove and Install Cooling Fan and Fan Motor Assembly 2652
How to Remove Cooling Fan and Fan Motor Assembly 2652
How to Install Cooling Fan and Fan Motor Assembly 2655
Remove and Install Hydraulic Oil Cooler Assembly 2659
How to Remove Hydraulic Oil Cooler Assembly 2659
How to Install Hydraulic Oil Cooler Assembly 2660
Remove and Install Aftercooler Assembly 2662
How to Remove Aftercooler Assembly 2662
How to Install Aftercooler Assembly 2663
Remove and Install Engine Assembly 2665
How to Remove Engine Assembly 2666
How to Install Engine Assembly 2685
Remove and Install Engine Front Oil Seal 2705
How to Remove Engine Front Oil Seal 2705
How to Install Engine Front Oil Seal 2707
Remove and Install Engine Rear Oil Seal 2710
How to Remove Engine Rear Oil Seal 2710
How to Install Engine Rear Oil Seal 2712
Remove and Install Engine Hood Assembly 2716
How to Remove Engine Hood Assembly 2716
How to Install Engine Hood Assembly 2723
Remove and Install KDPF Assembly 2730
How to Remove KDPF Assembly 2731
How to Install KDPF Assembly 2741
Disassemble and Assemble KDPF Assembly 2754
How to Disassemble KDPF Assembly 2754
How to Assemble KDPF Assembly 2759
Remove and Install KDPF and SCR Assembly 2764
How to Remove KDPF and SCR Assembly 2765
How to Install KDPF and SCR Assembly 2775
Remove and Install Bellows Pipe Assembly 2790
How to Remove Bellows Pipe Assembly 2790
How to Install Bellows Pipe Assembly 2793
Remove and Install Fuel Tank Assembly 2798
How to Remove Fuel Tank Assembly 2798
How to Install Fuel Tank Assembly 2802
Remove and Install DEF Tank Assembly 2806
How to Remove DEF Tank Assembly 2807
How to Install DEF Tank Assembly 2813
Remove and Install DEF Tank Sensor Flange Assembly 2818
How to Remove DEF Tank Sensor Flange Assembly 2818
How to Install DEF Tank Sensor Flange Assembly 2820
Remove and Install DEF Tank Sensor 2823
How to Remove DEF Tank Sensor 2823
How to Install DEF Tank Sensor 2824
Remove and Install DEF Tank Strainer 2831
How to Remove DEF Tank Strainer 2831
How to Install DEF Tank Strainer 2832
Remove and Install SCR Assembly 2833
How to Remove SCR Assembly 2834
How to Install SCR Assembly 2844
Remove and Install KCCV Assembly 2858
How to Remove KCCV Assembly 2858
How to Install KCCV Assembly 2860
Remove and Install VGT Assembly 2863
How to Remove VGT Assembly 2863
How to Install VGT Assembly 2870
Remove and Install DEF Mixing Tube 2879
How to Remove DEF Mixing Tube 2880
How to Install DEF Mixing Tube 2885
Remove and Install DEF Injector 2893
How to Remove DEF Injector 2893
How to Install DEF Injector 2896
Remove and Install DEF Pump 2901
How to Remove DEF Pump 2901
How to Install DEF Pump 2903
Remove and Install DEF Hose 2906
How to Remove DEF Hose 2906
How to Install DEF Hose 2914
Remove and Install Air Cleaner Assembly 2922
How to Remove Air Cleaner Assembly 2922
How to Install Air Cleaner Assembly 2925
Remove and Install Air Conditioner Compressor Assembly 2928
How to Remove Air Conditioner Compressor Assembly 2929
How to Install Air Conditioner Compressor Assembly 2931
Remove and Install Air Conditioner Condenser Assembly 2933
How to Remove Air Conditioner Condenser Assembly 2933
How to Install Air Conditioner Condenser Assembly 2935
Power Train 2938
Remove and Install HST Pump Assembly 2938
How to Remove HST Pump Assembly 2939
How to Install HST Pump Assembly 2945
Remove and Install HST Motor 1 Assembly 2954
How to Remove HST Motor 1 Assembly 2954
How to Install HST Motor 1 Assembly 2957
Remove and Install HST Motor 2 Assembly 2960
How to Remove HST Motor 2 Assembly 2961
How to Install HST Motor 2 Assembly 2969
Remove and Install Transfer Assembly 2979
How to Remove Transfer Assembly 2980
How to Install Transfer Assembly 2984
Disassemble and Assemble Transfer Assembly 2991
How to Disassemble Transfer Assembly 2993
How to Assemble Transfer Assembly 3013
Remove and Install Front Axle Assembly 3038
How to Remove Front Axle Assembly 3038
How to Install Front Axle Assembly 3040
Remove and Install Rear Axle Assembly 3043
How to Remove Rear Axle Assembly 3043
How to Install Rear Axle Assembly 3047
Disassemble and Assemble Axle Housing Assembly 3051
How to Disassemble Axle Housing Assembly 3052
How to Assemble Axle Housing Assembly 3060
Disassemble and Assemble Differential Assembly 3070
How to Disassemble Differential Assembly 3071
How to Assemble Differential Assembly 3084
Undercarriage and Frame 3104
Remove and Install Center Hinge Pin 3104
How to Remove Center Hinge Pin 3105
How to Install Center Hinge Pin 3112
Remove and Install Counterweight Assembly 3125
How to Remove Counterweight Assembly 3125
How to Install Counterweight Assembly 3131
Hydraulic System 3136
Remove and Install Hydraulic Tank Assembly 3136
How to Remove Hydraulic Tank Assembly 3136
How to Install Hydraulic Tank Assembly 3147
Remove and Install Control Valve Assembly 3157
How to Remove Control Valve Assembly 3157
How to Install Control Valve Assembly 3163
Remove and Install Quick Coupler LS Pressure Rise Valve Assembly 3168
How to Remove Quick Coupler LS Pressure Rise Valve Assembly 3168
How to Install Quick Coupler LS Pressure Rise Valve Assembly 3171
Disassemble and Assemble Work Equipment Cylinder Assembly 3174
How to Disassemble Work Equipment Cylinder Assembly 3175
How to Assemble Work Equipment Cylinder Assembly 3179
Work Equipment 3187
Remove and Install Work Equipment Assembly 3187
How to Remove Work Equipment Assembly 3188
How to Install Work Equipment Assembly 3192
CAB Related Parts 3203
Remove and Install Operator Cab and Floor Frame Assembly 3203
How to Remove Operator Cab and Floor Frame Assembly 3204
How to Install Operator Cab and Floor Frame Assembly 3212
Remove and Install Operator Cab Glass (Adhered Glass) 3220
How to Remove Operator Cab Glass (Adhered Glass) 3220
How to Install Operator Cab Glass (Adhered Glass) 3221
Remove and Install Air Conditioner Unit Assembly 3230
How to Remove Air Conditioner Unit Assembly 3230
How to Install Air Conditioner Unit Assembly 3236
Remove and Install Operator Seat Assembly 3243
How to Remove Operator Seat Assembly 3243
How to Install Operator Seat Assembly 3243
How to Remove and Install Seat Belt 3245
How to Remove Seat Belt 3245
How to Install Seatbelt 3245
Electrical System 3247
Remove and Install Engine Controller Assembly 3247
How to Remove Engine Controller Assembly 3247
How to Install Engine Controller Assembly 3252
Remove and Install HST Controller Assembly 3258
How to Remove HST Controller Assembly 3258
How to Install HST Controller Assembly 3260
Remove and Install Air Conditioner Controller Assembly 3262
How to Remove Air Conditioner Controller Assembly 3262
How to Install Air Conditioner Controller Assembly 3263
Remove and Install Monitor Controller Assembly 3265
How to Remove Monitor Controller Assembly 3265
How to Install Monitor Controller Assembly 3268
Remove and Install Machine Monitor Assembly 3270
How to Remove Machine Monitor Assembly 3270
How to Install Machine Monitor Assembly 3273
Remove and Install Mass Air Flow and Temperature Sensor 3276
How to Remove Mass Air Flow and Temperature Sensor 3276
How to Install Mass Air Flow and Temperature Sensor 3277
Remove and Install KCCV Crankcase Pressure Sensor 3278
How to Remove KCCV Crankcase Pressure Sensor 3278
How to Install KCCV Crankcase Pressure Sensor 3279
Remove and Install KDPF Temperature Sensor 3281
How to Remove KDPF Temperature Sensor 3281
How to Install KDPF Temperature Sensor 3283
Remove and Install KDPF Differential Pressure Sensor 3286
How to Remove KDPF Differential Pressure Sensor 3286
How to Install KDPF Differential Pressure Sensor 3289
Remove and Install SCR Temperature Sensor 3291
How to Remove SCR Temperature Sensor 3291
How to Install SCR Temperature Sensor 3292
Remove and Install Ammonia Sensor 3294
How to Remove Ammonia Sensor 3294
How to Install Ammonia Sensor 3296
Remove and Install SCR Outlet NOx Sensor 3299
How to Remove SCR Outlet NOx Sensor 3299
How to Install SCR Outlet NOx Sensor 3302
Remove and Install KOMTRAX Terminal Assembly 3305
How to Remove KOMTRAX Terminal Assembly 3305
How to Install KOMTRAX Terminal Assembly 3306
Remove and Install Gateway Function Controller Assembly 3307
How to Remove Gateway Function Controller Assembly 3307
How to Install Gateway Function Controller Assembly 3308
Remove and Install Communication Terminal 3309
How to Remove Communication Terminal 3309
How to Install Communication Terminal 3311
60 Maintenance Standard 3315
Table of Contents 3316
Abbreviation List 3317
Engine and Cooling System 3323
Maintenance Standard for Engine Mount 3323
Maintenance Standard for Damper 3324
Maintenance Standard for Cooling Fan Motor 3326
Power Train 3328
Maintenance Standard for Drive Shaft 3328
Maintenance Standard for Transfer 3329
Maintenance Standard for Transfer Mount 3337
Maintenance Standard for Front Axle 3338
Maintenance Standard for Rear Axle 3339
Maintenance Standard for Front Torque Proportioning Differential 3340
Maintenance Standard for Rear Torque Proportioning Differential 3342
Maintenance Standard for Limited Slip Differential 3344
Maintenance Standard for Final Drive 3346
Steering System 3348
Maintenance Standard for Steering Column 3348
Maintenance Standard for Priority Valve 3349
Maintenance Standard for Steering Cylinder 3350
Maintenance Standard for Secondary Steering Valve 3353
Brake System 3354
Maintenance Standard for Brake Circuit Accumulator Charge Valve 3354
Maintenance Standard for Slack Adjuster 3355
Maintenance Standard for Front Brake 3356
Maintenance Standard for Rear Brake 3357
Maintenance Standard for Parking Brake 3358
Maintenance Standard for Parking Brake Solenoid Valve 3360
Undercarriage and Frame 3361
Maintenance Standard for Frame, Axle Mount and Center Hinge Pin 3361
Hydraulic System 3370
Maintenance Standard for Hydraulic Tank 3370
Maintenance Standard for Brake and Cooling Fan Pump and Transfer Lubrication Pump 3371
Maintenance Standard for Steering and Work Equipment Pump 3372
Maintenance Standard for Servo Valve of Steering and Work Equipment Pump 3375
Maintenance Standard for Control Valve 3376
Maintenance Standard for Self-Pressure Reducing Valve 3388
Maintenance Standard for Multifunction Mono-Lever PPC Valve 3390
Maintenance Standard for Work Equipment Lock Solenoid Valve 3392
Work Equipment 3393
Maintenance Standard for Work Equipment Linkage 3393
Maintenance Standard for Bucket 3397
Maintenance Standard for Lift Cylinder 3399
Maintenance Standard for Bucket Cylinder 3400
CAB Related Parts 3401
Maintenance Standard for CAB Mount 3401
80 Appendix 3403
Table of Contents 3404
Precautions Before Work 3406
Abbreviation List 3407
Air Conditioner System 3413
Precautions for Refrigerant 3413
Air Conditioner Component 3414
Specifications of Air Conditioner 3416
Structure and Function of Refrigeration Cycle 3417
Outline of Refrigeration Cycle 3418
Component Parts of Air Conditioner System 3420
Air Conditioner Unit 3420
Configuration Diagram of Air Conditioner Unit 3420
Function of Air Conditioner Unit 3421
Component Parts of Air Conditioner Unit 3422
Function of Evaporator as Air Conditioner Unit Component 3422
Function of Inside Air Temperature Sensor as Air Conditioner Unit Component 3422
Function of Blower Amplifier as Air Conditioner Unit Component 3423
Function of Blower OFF Relay as Air Conditioner Unit Component 3423
Function of Compressor Clutch Relay as Air Conditioner Unit Component 3423
Function of Heater Core as Air Conditioner Unit Component 3423
Function of Evaporator Temperature Sensor as Air Conditioner Unit Component 3423
Function of Servo Motor as Air Conditioner Unit Component 3423
Function of Expansion Valve as Air Conditioner Unit Component 3424
Function of Dual Pressure Switch 3424
Air Conditioner Controller 3425
Structure of Air Conditioner Controller 3425
Compressor 3426
Structure of Compressor 3426
Specifications of Compressor 3426
Function of Compressor 3426
Condenser 3427
Structure of Condenser 3427
Specifications of Condenser 3427
Function of Condenser 3427
Receiver Drier 3428
Structure of Receiver Dryer 3428
Specifications of Receiver Dryer 3428
Function of Receiver Dryer 3428
Air Conditioner Related Sensors 3429
Function of Sunlight Sensor 3429
Function of Outside Air Temperature Sensor 3429
Explanation of Procedure for Test of and Troubleshooting of Air Conditioner 3430
Circuit Diagram and Configuration of Connector Pins of Air Conditioner 3432
System Diagram of Air Conditioner 3435
Input and Output Signals of Air Conditioner Controller 3436
Function of Air Conditioner Controller 3437
Locations of Air Conditioner Parts and Layout of Connectors 3438
Examine Air Conditioner with Self-Diagnosis Function 3444
Open the Electrical System Abnormality Record Screen in Service Mode of Machine Monitor 3445
Examine Temperature Control Function 3446
How to Examine Temperature Control Function 3446
Examine Vent (Mode) Changeover 3448
How to Examine Vent (Mode) Changeover 3448
Examine Fresh/Recirc Air Changeover 3450
How to Examine Fresh/Recirc Air Changeover 3450
Examine Evaporator Temperature Sensor 3452
Examine Relay 3454
How to Examine Relay 3454
Air Conditioner Troubleshooting Chart 1 3456
Air Conditioner Troubleshooting Chart 2 3457
Failure Code [879AKA] 3460
Failure Code [879AKB] 3462
Failure Code [879BKA] 3464
Failure Code [879BKB] 3466
Failure Code [879CKA] 3468
Failure Code [879CKB] 3470
Failure Code [879DKZ] 3472
Failure Code [879EMC] 3474
Failure Code [879FMC] 3475
Troubleshooting for Power Supply System (Air Conditioner Does Not Operate) 3476
Troubleshooting for Compressor and Refrigerant System (Air is Not Cooled) 3479
Troubleshooting for Blower Motor System (No Air Comes Out or Air Flow is Abnormal) 3482
Troubleshooting for Fresh/Recirc Air Changeover 3486
Troubleshooting by Gauge Pressure 3488
Connect Service Tool 3491
How to Connect Service Tool 3492
Precautions for Disconnection and Connection of Air Conditioner Piping 3493
Handle Compressor Oil 3495
90 Circuit Diagrams 3497
Table of Contents 3498
Abbreviation List 3501
Hydraulic Circuit Diagram 3507
Symbols Used in Hydraulic Circuit Diagram 3507
Hydraulic Circuit Diagram (1/2) 3511
Hydraulic Circuit Diagram (2/2) 3513
Hydraulic Auto-Greasing Diagram 3515
Electrical Circuit Diagram 3517
Symbols Used in Electric Circuit Diagram 3517
Electrical Circuit Diagram of Machine (Machine with KOMTRAX Terminal) (1/7) 3521
Electrical Circuit Diagram of Machine (Machine with KOMTRAX Terminal) (2/7) 3523
Electrical Circuit Diagram of Machine (Machine with KOMTRAX Terminal) (3/7) 3525
Electrical Circuit Diagram of Machine (Machine with KOMTRAX Terminal) (4/7) 3527
Electrical Circuit Diagram of Machine (Machine with KOMTRAX Terminal) (5/7) 3529
Electrical Circuit Diagram of Machine (Machine with KOMTRAX Terminal) (6/7) 3531
Electrical Circuit Diagram of Machine (Machine with KOMTRAX Terminal) (7/7) 3533
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (1/8) 3535
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (2/8) 3537
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (3/8) 3539
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (4/8) 3541
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (5/8) 3543
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (6/8) 3545
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (7/8) 3547
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (8/8) 3549
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (1/8) 3551
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (2/8) 3553
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (3/8) 3555
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (4/8) 3557
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (5/8) 3559
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (6/8) 3561
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (7/8) 3563
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (8/8) 3565
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 87649 and Up) (1/8) 3567
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 87649 and Up) (2/8) 3569
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 87649 and Up) (3/8) 3571
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 87649 and Up) (4/8) 3573
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 87649 and Up) (5/8) 3575
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 87649 and Up) (6/8) 3577
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 87649 and Up) (7/8) 3579
Electrical Circuit Diagram of Machine (Machine with Gateway Function Controller and Collision Detection System) (Applicable Machine: 87649 and Up) (8/8) 3581
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (1/9) 3583
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (2/9) 3585
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (3/9) 3587
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (4/9) 3589
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (5/9) 3591
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (6/9) 3593
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (7/9) 3595
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (8/9) 3597
Electrical Circuit Diagram of Floor (Machine with KOMTRAX Terminal) (9/9) 3599
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (1/10) 3601
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (2/10) 3603
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (3/10) 3605
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (4/10) 3607
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (5/10) 3609
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (6/10) 3611
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (7/10) 3613
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (8/10) 3615
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (9/10) 3617
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 85001 to 87648) (10/10) 3619
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (1/11) 3621
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (2/11) 3623
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (3/11) 3625
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (4/11) 3627
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (5/11) 3629
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (6/11) 3631
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (7/11) 3633
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (8/11) 3635
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (9/11) 3637
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (10/11) 3639
Electrical Circuit Diagram of Floor (Machine with Gateway Function Controller) (Applicable Machine: 87649 and Up) (11/11) 3641
Index 3643

DESCRIPTION:

Komatsu WA320-8 Wheel Loader Shop Manual SEN06597-14 – PDF DOWNLOAD 

SERIAL NUMBERS 85001 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