Komatsu HYDRAULIC EXCAVATOR PC490LCi-11 Shop Manual SEN06944-02 PDF

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Komatsu HYDRAULIC EXCAVATOR PC490LCi-11 Shop Manual SEN06944-02 – PDF DOWNLOAD

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Komatsu HYDRAULIC EXCAVATOR PC490LCi-11 Shop Manual SEN06944-02 – PDF DOWNLOAD

Language : English
Pages :4208
Downloadable : Yes
File Type : PDF

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DESCRIPTION:

Komatsu HYDRAULIC EXCAVATOR PC490LCi-11 Shop Manual SEN06944-02 – PDF DOWNLOAD

SERIAL NUMBERS 86044 and up

TABLE OF CONTENTS:

Komatsu HYDRAULIC EXCAVATOR PC490LCi-11 Shop Manual SEN06944-02 – PDF DOWNLOAD

SERIAL NUMBERS 86044 and up

Cover 1
00 Index and Foreword 3
Index 4
Abbreviation List 26
Foreword, Safety, Basic Information 32
How to Read the Shop Manual 32
Safety Notice for Operation 34
Precautions to Prevent Fire 42
Procedures If Fire Occurs 44
Precautions When You Discard Waste Materials 45
Procedures for Exhaust Gas Regulations 46
Precautions for DEF 47
General Character and Precautions for Handling 47
Precautions When You Add 47
Precautions for Storage 47
Precautions for Fire Hazard and Leakage 47
Other Precautions 47
Store DEF 48
Precautions When You Handle Hydraulic Equipment 49
Precautions When You Disconnect and Connect Pipings 52
Precautions When You Handle Electrical Equipment 59
Precautions When You Handle Fuel System Equipment 61
Precautions When You Handle Intake System Equipment 62
Practical Use of KOMTRAX 63
Disconnect and Connect Push-Pull Type Coupler 64
How to Disconnect and Connect Type 1 Push-Pull Type Coupler 64
How to Disconnect and Connect Type 2 Push-Pull Type Coupler 65
How to Disconnect and Connect Type 3 Push-Pull Type Coupler 66
Precautions for Disconnection and Connection of Connectors 68
Disconnect and Connect Deutsch Connector 72
How to Disconnect and Connect Slide Lock Type Connector 73
Disconnect and Connect Connector with Lock to Pull 75
Disconnect and Connect Connector with Lock to Push 76
Disconnect and Connect Connector with Housing to Rotate 78
How to Read the Codes for Electric Cable 79
Explanation of Terms for Maintenance Standard 83
Standard Tightening Torque Table 86
Conversion Table 93
01 Specification 99
Table of Contents 100
Specifications 101
Specification Drawing 101
Specification Drawing: PC490LCI-11 101
Working Range Drawings 103
Working Range: PC490LCI-11 103
Specifications 104
Specifications: PC490LCI-11 104
Weight Table 108
Weight Table: PC490LCI-11 108
Table of Fuel, Coolant, and Lubricants 110
10 Structure and Function 111
Table of Contents 112
Urea SCR System 116
LAYOUT DRAWING OF UREA SCR SYSTEM (APPLICABLE MACHINE: 85001 to 86052) 116
LAYOUT DRAWING OF UREA SCR SYSTEM (APPLICABLE MACHINE: 86053 and up) 120
Urea SCR System Diagram 124
Function of Urea SCR System 125
FUNCTION OF DEF SYSTEM (APPLICABLE MACHINE: 85001 to 86052) 125
FUNCTION OF DEF SYSTEM (APPLICABLE MACHINE: 86053 and up) 127
Inducement Strategy 129
Component Parts of Urea SCR System 137
DEF Mixing Tube 137
SCR Assembly 138
DEF Tank 140
DEF Pump 142
DEF Injector 144
DEF Hose 145
DEF Tank Heating Valve 146
Boot-up System 147
Layout Drawing of Boot-up System 147
System Operating Lamp System 149
System Diagram of System Operating Lamp System 149
Function of Operation Lamp System 149
Battery Isolator 151
Function of Battery Isolator 151
Engine System 152
Layout Drawing of Engine System 152
Specifications of Engine System 153
Function of Engine System 154
Engine Control System 155
System Diagram of Engine Control 155
Function of Engine Control System 156
Auto-Deceleration System 159
System Diagram of Auto-Deceleration System 159
Function of Auto-Deceleration System 159
Operation of Auto-Deceleration System 160
Engine Automatic Warm-up System 161
System Diagram of Engine Automatic Warm-up System 161
Function of Engine Automatic Warm-up System 162
Overheat Prevention System 163
Overheat Prevention System Diagram 163
Function of Overheat Prevention System 164
Turbocharger Protection System 166
System Diagram of Turbocharger Protection System 166
Function of Turbocharger Protection System 167
Automatic Idle Stop System 168
System Diagram of Automatic Idle Stop System 168
Function of Automatic Idle Stop System 168
Component Parts of Engine System 171
VGT 171
EGR System 175
EGR Valve 177
EGR Cooler 179
KCCV System 180
KCCV Ventilator 182
KDPF 184
Cooling System 188
Layout Drawing of Cooling System 188
Specifications of Cooling System 189
Fan Speed Control System of Hydraulic Fan 191
Fan Speed Control System Diagram of Hydraulic Fan 191
Function of Fan Speed Control System of Hydraulic Fan 192
Engine Output Control System of Hydraulic Fan 193
Engine Output Control System Diagram of Hydraulic Fan 193
Function of Engine Output Control System of Hydraulic Fan 194
Fan Reverse Rotation System of Hydraulic Fan 196
Fan Reverse Rotation System Diagram of Hydraulic Fan 196
Function of Fan Reverse Rotation System of Hydraulic Fan 196
Component Parts of Cooling System 197
Cooling Fan Pump 197
Cooling Fan Motor 205
Control System 212
Layout Drawing of Control System 212
Machine Monitor System 215
System Diagram of Machine Monitor System 215
Function of Machine Monitor System 216
KomVision System 217
Layout Drawing of KomVision System 217
System Diagram of KomVision System 219
Function of KomVision System 219
KOMTRAX System 221
System Diagram of KOMTRAX System 221
Function of KOMTRAX System 221
PPC Levers 222
LH PPC Lever 222
RH PPC Lever 223
Component Parts of Control System 224
Machine Monitor 224
KomVision Controller 238
KomVision Camera 242
Gateway Function Controller 243
Communication Terminal 246
Pump Controller 249
Resistor for PC-EPC Valve 253
CAN Terminating Resistor 254
PPC Oil Pressure Switch 254
Engine Controller 256
Fuel Control Dial 263
Fuel Feed Pump 265
Fuel Feed Pump Switch 266
Hydraulic System 267
Layout Drawing of Hydraulic System 267
CLSS 269
Structure of CLSS 269
Operation of Unload Valve and LS Pressure 271
Pump Swash Plate Angle (Oil Flow) Control 272
Pressure Compensation Control 288
Engine and Pump Combined Control System 292
Engine and Pump Combined Control System Diagram 292
Function of Engine and Pump Combined Control System 294
Pump and Valve Control System 298
Pump and Valve Control System Diagram 298
Function of Pump and Valve Control System 299
Component Parts of Hydraulic System 301
Hydraulic Tank 301
Main Pump 303
Pilot Oil Filter 326
Control Valve 327
Work Equipment System 377
Layout Drawing of Work Equipment System 377
Structure of Valve Control 382
Bucket Control System 383
Operation of Bucket Control System 383
One-Touch Power Maximizing System 384
System Diagram of One-Touch Power Maximizing System 384
Function of One-Touch Power Maximizing System 385
Machine Push-up System 386
Machine Push-up System Diagram 386
Function of Machine Push-up System 387
PPC Lock System 388
System Diagram of PPC Lock 388
Function of PPC Lock System 388
Work Equipment and Travel Automatic Lock System 389
System Diagram of Lock Lever Automatic Lock System 389
Function of Work Equipment and Travel Automatic Lock System 389
Operation of Lock Lever Automatic Lock System 390
Attachment Oil Flow Adjuster System 391
Attachment Oil Flow Adjuster System Diagram 391
Function of Attachment Oil Flow Adjuster System 392
Quick Coupler Control Valve System 393
Quick Coupler Control Valve System Diagram 393
Function of Quick Coupler Control Valve System 393
Operation of Quick Coupler Control Valve System 393
Component Parts of Work Equipment System 394
Work Equipment and Swing PPC Valve 394
1st-Line Attachment PPC Valve (with EPC Valve) 401
Solenoid Valve 406
Boom Anti-drop Valve 409
Arm Anti-Drop Valve 414
Attachment Circuit Selector Valve 419
Pilot Circuit Accumulator 421
Attachment Circuit Accumulator 422
ICT System 423
Layout Drawing of ICT System 423
System Diagram of ICT Control System 426
Bucket Edge Position Detection System 427
Bucket Edge Position Detection System Diagram 427
Function of Bucket Edge Position Detection System 427
Operation of Bucket Edge Position Detection System 427
The Intelligent Machine Control System 429
Function of Intelligent Machine Control System 429
Auto Grade Assist Control 430
Bucket Angle Hold Control 436
Auto Stop Control 438
Tilt Automatic Control (Machines with Auto Tilt Bucket) 452
Cushion System for Arm IN End 455
Cushion System for Arm IN End Diagram 455
Function of Cushion System for Arm IN End 455
Operation of Cushion System for Arm IN End 455
Boom Secondary Drive Switch 457
Control Function When Boom Secondary Drive Switch is Turned to ON Position 457
Component Parts of ICT System 458
ICT Sensor Controller 458
Work Equipment Controller 462
Control Box 466
GNSS Receiver 469
GNSS Antenna 471
IMU Sensor 471
Intelligent Machine Control EPC Valve 473
Stroke Sensor for Boom Cylinder 476
Stroke Sensor for Arm Cylinder 478
Stroke and Reset Sensor for Bucket Cylinder 479
Reset Sensor for Boom Cylinder 482
Reset Sensor for Arm Cylinder 483
Boom Spool Stroke Sensor 484
Arm Spool Stroke Sensor 486
Swing System 488
Layout Drawing of Swing System 488
Swing Control System Diagram 493
Function of Swing Control System 494
Component Parts of Swing System 497
Swing Motor 497
Swing Machinery 508
Swing Circle 510
Travel System 512
Layout Drawing of Travel System 512
System Diagram of Travel Control System 516
Function of Travel Control System 517
Component Parts of Travel System 518
Travel Motor 518
Final Drive 531
Travel PPC Valve 533
Center Swivel Joint 537
Undercarriage and Frame 539
Layout Drawing of Undercarriage 539
Specifications of Undercarriage 539
Work Equipment 540
Structure of Work Equipment 540
Function of Work Equipment 541
Work Equipment Clearance Adjustment Shim 542
Function of Work Equipment Clearance Adjustment Shim 542
Bucket Clearance Adjustment Shim 543
Function of Bucket Clearance Adjustment Shim 543
CAB Related Parts 544
ROPS CAB 544
Structure of ROPS CAB 544
Function of ROPS CAB 544
CAB Mount 545
Structure of CAB Mount 545
Function of CAB Mount 545
CAB Tipping Stopper 546
Structure of CAB Tipping Stopper 546
Function of CAB Tipping Stopper 546
20 Standard Value Table 547
Table of Contents 548
Standard Value Table for Engine 549
Standard Value Table for Engine: PC490LCI-11 549
Standard Value Table for Machine 552
Standard Value Table for Machine: PC490LCI-11 552
Machine Posture and Procedures to Measure Performance 577
30 Testing and Adjusting 581
Table of Contents 582
Related Information on Testing and Adjusting 586
Tools for Testing and Adjusting 586
Sketch of Tools for Testing and Adjusting 597
Engine and Cooling System 599
Examine Engine Speed 599
How to Examine Engine Speed 599
Examine Boost Pressure 602
How to Examine Boost Pressure on Machine Monitor 602
How to Examine Boost Pressure by Testing Tool 603
Examine Exhaust Gas Color 604
How to Examine Exhaust Gas Color with the Handy Smoke Checker 604
How to Examine Exhaust Gas Color with Smoke Meter 605
Examine Mass Air Flow and Temperature Sensor 606
How to Examine Mass Air Flow and Temperature Sensor 606
Examine and Adjust Valve Clearance 608
Check Valve Clearance 608
Adjust Valve Clearance 610
Examine Compression Pressure 611
How to Examine Compression Pressure 611
Examine Blowby Pressure 614
How to Examine Blowby Pressure 614
Examine Engine Oil Pressure 616
Examine Engine Oil Pressure on Machine Monitor 616
Examine Engine Oil Pressure by Testing Tool 616
Examine EGR Valve and VGT Oil Pressure 618
How to Examine EGR Valve and VGT Oil Pressure 618
Examine Fuel Pressure 620
How to Examine Fuel Pressure 620
Examine Fuel Return Rate and Leakage 622
How to Examine Fuel Return Rate and Leakage 622
Bleed Air from Fuel System 625
How to Bleed Air from Fuel System 625
Examine Fuel Circuit for Leakage 627
How to Examine Fuel System for Leakage 627
Handle Cylinder Cut-out Mode Operation 629
Handle No-Injection Cranking Operation 630
Examine and Adjust Air Conditioner Compressor Belt Tension 631
How to Examine Air Conditioner Compressor Belt Tension 631
How to Adjust Air Conditioner Compressor Belt Tension 631
Examine Alternator Belt 633
How to Examine Alternator Belt 633
Examine Automatic Tensioner 635
How to Examine Automatic Tensioner 635
Clean Fuel Doser 637
How to Clean Fuel Doser 637
Write Injector Compensation Value to Engine Controller 639
Write Injector Compensation Value 639
Write Correction for Ash in Soot Accumulation to Engine Controller 645
How to Write Correction for Ash in Soot Accumulation to Engine Controller 645
Examine SCR Related Functions 646
Examine DEF Pump Raised Pressure 650
Examine Injection Volume from DEF Injector 653
Examine DEF Line Heater Relay 1 658
Examine DEF Line Heater Relay 2 661
Examine DEF Pump Heater Relay 664
Examine DEF Tank Heater Valve 667
Examine SCR Denitration Efficiency 670
Clean DEF Tank 674
How to Clean DEF Tank 674
Clean DEF Pump 678
How to Clean DEF Pump 678
Power Train 685
Examine Swing Circle Bearing Clearance 685
How to Examine Swing Circle Bearing Clearance 685
Undercarriage and Frame 686
Examine and Adjust Track Tension 686
How to Examine Track Tension 686
How to Adjust Track Tension 686
Hydraulic System 688
Release Remained Pressure in Hydraulic Circuit 688
How to Release Remained Pressure in Hydraulic System 688
Examine and Adjust Oil Pressure in Work Equipment, Swing, and Travel Circuits 693
How to Examine Oil Pressure in Work Equipment, Swing, and Travel Circuits 694
How to Adjust Oil Pressure in Work Equipment, Swing, and Travel Circuits 701
Examine Oil Pressure of Control Circuit 705
Examine Oil Pressure in Control Circuit 705
Examine and adjust oil pressure in pump PC control circuit 707
Examine PC Valve Outlet Pressure (Servo Piston Inlet Pressure) 707
Examine PC-EPC Valve Outlet Pressure 708
How to Adjust Oil Pressure in Pump PC Control Circuit 709
Examine and Adjust Oil Pressure in Pump LS Control Circuit 711
Examine LS Differential Pressure with Machine Monitor 711
Examine LS Differential Pressure by Testing Tool 712
How to Examine LS Valve Outlet Pressure (Servo Piston Inlet Pressure) 713
How to Examine LS-EPC Valve Outlet Pressure 714
Adjust LS Valve 715
Examine Outlet Pressure of Solenoid Valve 716
How to Examine Outlet Pressure of Solenoid Valve 716
Operating Condition of Solenoid Valve 717
Examine PPC Valve Outlet Pressure 719
Examine Outlet Pressure in PPC Valve 719
Adjust Play of Work Equipment and Swing PPC Valves 721
How to Adjust Play of Work Equipment and Swing PPC Valves 721
Test Outlet Pressure of Quick Coupler Control Valve 722
Examine Pump Swash Plate Sensor 724
How to Examine pump swash plate sensor 724
Examine Cooling Fan Speed 725
How to Examine Cooling Fan Speed 725
Examine Oil Pressure in Fan Pump Circuit 726
How to Examine Oil Pressure in Fan Pump Circuit 726
Examine Fan Pump EPC Electric Current 728
How to Examine Fan Pump EPC Electric Current 728
Examine Fan Pump EPC Solenoid Valve Outlet Pressure 729
How to Examine Fan Pump EPC Solenoid Valve Outlet Pressure 729
Examine Parts Which Cause Hydraulic Drift of Work Equipment 731
How to Examine Parts Which Cause Hydraulic Drift of Boom Cylinder and Bucket Cylinder 731
How to Examine the Parts Which Cause Hydraulic Drift of Arm Cylinder 731
How to Examine Parts that Cause Hydraulic Drift of PPC Valve 732
Examine Oil Leakage 733
Examine Oil Leakage from Boom Cylinder 733
Examine Oil Leakage of Arm Cylinder 733
Examine Oil Leakage of Bucket Cylinder 734
How to Examine Oil Leakage of Swing Motor 734
How to Examine Oil Leakage of Travel Motor 735
Bleed Air from Hydraulic System 736
How to Bleed Air from Hydraulic System 738
Work Equipment 741
Examine and Charge Accumulator (Made by NOK) Nitrogen Gas Pressure for Attachment (Low Pressure Side) 741
Examine Accumulator (Made by NOK) Nitrogen Gas Pressure for Attachment (Low Pressure Side) 741
Examine and Charge Accumulator Nitrogen Gas Pressure for Attachment (High Pressure Side) 745
Examine Accumulator Nitrogen Gas Pressure for Attachment (High Pressure Side) 745
Replace Accumulator Bladder on High Pressure Side for Attachment Piping 749
How to Replace Accumulator Bladder on High Pressure Side for Attachment Piping 749
CAB Related Parts 756
Examine CAB Tipping Stopper 756
How to Examine Cab Tipping Stopper 756
How to Adjust Mirrors 757
Procedure to Adjust Machine Left Front Mirror (A) 757
Procedure to Adjust Regular Position of Machine Left Front Mirror (A) 758
Procedure to Adjust Machine Right Front Mirror (B) 759
Procedure to Adjust Regular Position of Machine Right Front Mirror (B) 760
Procedure to Adjust Machine Right Side Mirror (C) 761
Electrical System 763
Set and Operate Machine Monitor 763
Operator Mode 768
Function to Show Technician Identification Status Screen 768
Function to Show Operator Identification Input Screen 768
Examine Function by LCD (Liquid Crystal Display) 769
Examine Function of Service Meter 769
Usage Limitation and Maintenance Password Change Function 769
Service Mode 772
How to Operate Service Mode 772
How to See Pre-defined Monitoring Information 775
How to Examine Self-Define Monitor Information 782
Abnormality Record Menu 796
How to See Maintenance Record 800
Maintenance Mode Setting 801
Set Phone Number Entry 805
Default Menu 807
Diagnostic Tests Menu 817
Adjustment Menu 828
No-Injection Cranking Operation 866
KOMTRAX Settings Menu 868
Show Service Message 870
Start Up KOMTRAX System 872
How to Stop Use of KOMTRAX System 878
Adjust rearview camera angle 880
How to Adjust Rearview Camera Angle 880
Adjust KomVision Camera Angle 882
How to Adjust KomVision Camera Angle 883
Adjust KomVision Related Function 887
Setting of KomVision (Main Setting) 887
Setting of KomVision (Camera Setting) 889
Setting of KomVision (Camera Calibration) 891
KomVision screen – Check 12 m visibility 904
Set Region of Bluetooth(R) Compatible Radio 907
Set Region of Bluetooth(R) Compatible Radio 907
Handle Voltage Circuit of Engine Controller 909
Handle Battery Isolator Switch 910
Examine Diodes 911
Examine Diodes by Digital Tester 911
How to Examine Diodes by Analog Tester 911
ICT System 912
Set and Operate Control Box 912
How to Set the Starting Switch Interlock Function of the Control Box 914
How to Select Excavator Model in the Control Box 917
Set GNSS Receiver Type 921
Set Heading Mode 924
Switch Grade Transitions Fineness on Control Box 928
Monitoring and Logging Function on Control Box 931
Set Tilt Automatic Control Function 936
Calibrate Intelligent Machine Control 940
PPC Pressure Sensor Calibration 942
Control Map Calibration1023
Calibrate ATT1EPC1179
How to Examine the Intelligent Machine Control System1191
Calibrate IMU Sensor for Yaw Angle1197
Calibrate IMU Sensor1204
Procedure to be Done If an Error Occurs During Calibration of IMU Sensor1216
Work Equipment Cylinder Calibration1216
If Error Occurs During Calibration of Work Equipment Cylinder1229
General Calibration of Bucket Blade Edge Position, Boom Dimensions, Arm Dimensions, Bucket Link Dimensions, and GNSS Antenna Position with Total Station1231
Calibration of Boom Dimensions and Arm Dimensions with Total Station1283
Calibration of Bucket Link Dimensions with Total Station1303
Calibration of GNSS Antenna with Total Station1340
Input Range of the Measured Values in Calibration with Total Station1364
Examine the Input Values in Calibration with Total Station1366
Procedure to be Done If an Error Occurs During Calibration with Total Station1366
Calibration of GNSS Antenna Without Total Station1368
Calibration of Bucket Blade Edge Position Without Total Station1372
Input Range of the Measured Values in Calibration Without Total Station1381
Procedure to be Done If an Error Occurs During Calibration Without Total Station1382
Pm Clinic1384
Pm Clinic Service1384
Pm Clinic Check Sheet: PC490LCI-111386
40 Troubleshooting1399
Table of Contents1400
Related Information to Troubleshooting1414
General Troubleshooting Points1414
Troubleshooting Points for Urea SCR System1415
Sequence of Events in Troubleshooting1429
Checks Before Troubleshooting1431
Inspection Procedure Before Troubleshooting1433
Walk-Around Check1433
Test in Accordance with Testing Procedure1435
Examine Fuel Level and Type1435
Examine for Impure Ingredient in Fuel1436
Examine Fuel Prefilter1436
Examine Water Separator, Drain Water and Sediment1436
Replace Fuel Prefilter Cartridge1437
Examine Fuel Main Filter1438
Examine Engine Oil Level (Oil Quantity in Oil Pan)1439
Examine Coolant Level (Reservoir Tank)1441
Examine Air Cleaner Clogging1441
Clean Outer Element1442
Replace Element1444
Examine Hydraulic Oil Level1445
Examine Hydraulic Oil Strainer1445
Examine Hydraulic Oil Filter1446
Examine Oil Level in Swing Machinery Case1447
Examine Oil Level in Damper Case1448
Examine Oil Level in Final Drive Case1448
Bleed Air from Fuel System1449
Bleed Air from Hydraulic System1449
How to Examine Electric Equipment1449
Preparation for Troubleshooting of Electrical System1456
Preparation for Troubleshooting of Machine Monitor1456
Preparation for Troubleshooting of Engine Controller1456
Preparation for Troubleshooting of Pump Controller1457
Preparation for Troubleshooting of ICT Sensor Controller1457
Preparation for Troubleshooting of Work Equipment Controller1459
Preparation for Troubleshooting of Gateway Function Controller1460
Preparation for Troubleshooting of KomVision Controller1460
Preparation for Troubleshooting of Control Box1460
Preparation for Troubleshooting of GNSS Receiver1460
How to Disconnect and Connect Connector with a Special Lock1460
Procedure for Troubleshooting1465
Symptom and Troubleshooting Numbers1468
Information Shown in Troubleshooting Table1473
Diagnose Open Circuit of Hydraulic Pressure Sensor System Wiring Harness1475
Connector List and Layout1478
Connector Contact Connection Table1496
T-Branch Box and T-Branch Adapter Table1536
Fuse Location Table1542
Precautions When You Clean and Replace KDPF (KCSF and KDOC)1546
Prepare Short Circuit Electrical Connector (For Failure Codes [CA1883] and [CA3135])1550
Failure Code Table1552
Troubleshooting by Failure Code (Display of Code)1578
Failure Code [6AZ0ZG]1578
Failure Code [879AKA]1580
Failure Code [879AKB]1581
Failure Code [879BKA]1582
Failure Code [879BKB]1584
Failure Code [879CKA]1586
Failure Code [879CKB]1587
Failure Code [879DKZ]1588
Failure Code [879EMC]1590
Failure Code [879FMC]1591
Failure Code [879GKX]1592
Failure Code [989L00]1594
Failure Code [989M00]1595
Failure Code [989N00]1596
Failure Code [A1U0N3]1597
Failure Code [A1U0N4]1599
Failure Code [A900FR]1601
Failure Code [A900N6]1602
Failure Code [A900NY]1603
Failure Code [AA10NX]1604
Failure Code [AB00KE]1606
Failure Code [AQ10N3]1609
Failure Code [AS00N3]1611
Failure Code [AS00R2]1613
Failure Code [AS00R3]1614
Failure Code [AS00R4]1615
Failure Code [AS00R5]1616
Failure Code [AS00R6]1617
Failure Code [AS00ZK]1618
Failure Code [AS10KM]1619
Failure Code [AS10NR]1620
Failure Code [AS10NT]1621
Failure Code [B@BAZG]1622
Failure Code [B@BAZK]1623
Failure Code [B@BCNS]1625
Failure Code [B@BCQA]1626
Failure Code [B@BCZK]1628
Failure Code [B@HANS]1630
Failure Code [CA115]1631
Failure Code [CA122]1632
Failure Code [CA123]1634
Failure Code [CA131]1636
Failure Code [CA132]1638
Failure Code [CA135]1640
Failure Code [CA141]1642
Failure Code [CA144]1644
Failure Code [CA145]1646
Failure Code [CA153]1648
Failure Code [CA154]1651
Failure Code [CA187]1654
Failure Code [CA221]1656
Failure Code [CA222]1658
Failure Code [CA227]1660
Failure Code [CA234]1661
Failure Code [CA238]1662
Failure Code [CA239]1664
Failure Code [CA249]1666
Failure Code [CA256]1668
Failure Code [CA271]1670
Failure Code [CA272]1672
Failure Code [CA273]1673
Failure Code [CA274]1675
Failure Code [CA322]1676
Failure Code [CA323]1678
Failure Code [CA324]1680
Failure Code [CA325]1682
Failure Code [CA331]1684
Failure Code [CA332]1686
Failure Code [CA343]1688
Failure Code [CA351]1689
Failure Code [CA352]1690
Failure Code [CA356]1693
Failure Code [CA357]1695
Failure Code [CA386]1697
Failure Code [CA441]1698
Failure Code [CA442]1700
Failure Code [CA449]1701
Failure Code [CA451]1702
Failure Code [CA452]1704
Failure Code [CA515]1706
Failure Code [CA516]1708
Failure Code [CA553]1710
Failure Code [CA555]1711
Failure Code [CA556]1712
Failure Code [CA559]1713
Failure Code [CA595]1718
Failure Code [CA687]1719
Failure Code [CA689]1721
Failure Code [CA691]1723
Failure Code [CA692]1725
Failure Code [CA697]1727
Failure Code [CA698]1728
Failure Code [CA731]1729
Failure Code [CA778]1730
Failure Code [CA1117]1733
Failure Code [CA1664]1734
Failure Code [CA1669]1737
Failure Code [CA1673]1738
Failure Code [CA1677]1739
Failure Code [CA1678]1740
Failure Code [CA1682]1741
Failure Code [CA1683]1743
Failure Code [CA1684]1744
Failure Code [CA1686]1746
Failure Code [CA1691]1747
Failure Code [CA1694]1750
Failure Code [CA1695]1752
Failure Code [CA1696]1753
Failure Code [CA1712]1755
Failure Code [CA1713]1758
Failure Code [CA1714]1760
Failure Code [CA1715]1761
Failure Code [CA1776]1762
Failure Code [CA1777]1765
Failure Code [CA1843]1768
Failure Code [CA1844]1770
Failure Code [CA1879]1773
Failure Code [CA1881]1775
Failure Code [CA1883]1777
Failure Code [CA1885]1780
Failure Code [CA1887]1782
Failure Code [CA1921]1784
Failure Code [CA1922]1787
Failure Code [CA1923]1792
Failure Code [CA1924]1794
Failure Code [CA1925]1796
Failure Code [CA1927]1798
Failure Code [CA1928]1800
Failure Code [CA1942]1802
Failure Code [CA1963]1803
Failure Code [CA1977]1806
Failure Code [CA1993]1809
Failure Code [CA2185]1812
Failure Code [CA2186]1814
Failure Code [CA2249]1816
Failure Code [CA2265]1817
Failure Code [CA2266]1819
Failure Code [CA2271]1821
Failure Code [CA2272]1823
Failure Code [CA2349]1825
Failure Code [CA2353]1827
Failure Code [CA2357]1829
Failure Code [CA2381]1830
Failure Code [CA2382]1832
Failure Code [CA2383]1834
Failure Code [CA2386]1836
Failure Code [CA2387]1838
Troubleshooting Flowchart1842
Failure Code [CA2555]1843
Failure Code [CA2556]1846
Failure Code [CA2637]1848
Failure Code [CA2639]1850
Failure Code [CA2732]1853
Failure Code [CA2733]1855
Failure Code [CA2741]1857
Failure Code [CA2765]1858
Failure Code [CA2771]1859
Failure Code [CA2777]1865
Failure Code [CA2878]1868
Failure Code [CA2881]1871
Failure Code [CA2976]1874
Failure Code [CA3133]1876
Failure Code [CA3134]1878
Failure Code [CA3135]1880
Failure Code [CA3142]1883
Failure Code [CA3143]1884
Failure Code [CA3144]1885
Failure Code [CA3146]1887
Failure Code [CA3147]1888
Failure Code [CA3148]1889
Failure Code [CA3151]1891
Failure Code [CA3165]1897
Failure Code [CA3167]1899
Failure Code [CA3229]1902
Failure Code [CA3231]1904
Failure Code [CA3232]1906
Failure Code [CA3235]1910
Failure Code [CA3239]1912
Failure Code [CA3241]1915
Failure Code [CA3242]1918
Failure Code [CA3251]1921
Failure Code [CA3253]1923
Failure Code [CA3254]1926
Failure Code [CA3255]1929
Failure Code [CA3256]1933
Failure Code [CA3311]1935
Failure Code [CA3312]1937
Failure Code [CA3313]1940
Failure Code [CA3314]1941
Failure Code [CA3315]1942
Failure Code [CA3316]1945
Failure Code [CA3317]1946
Failure Code [CA3318]1947
Failure Code [CA3319]1949
Failure Code [CA3321]1950
Failure Code [CA3322]1952
Failure Code [CA3419]1955
Failure Code [CA3421]1957
Failure Code [CA3497]1959
Failure Code [CA3498]1960
Failure Code [CA3543]1961
Failure Code [CA3545]1968
Failure Code [CA3547]1970
Failure Code [CA3558]1971
Failure Code [CA3559]1973
Failure Code [CA3562]1975
Failure Code [CA3563]1977
Failure Code [CA3567]1980
Failure Code [CA3568]1983
Failure Code [CA3571]1987
Failure Code [CA3572]1989
Failure Code [CA3574]1991
Failure Code [CA3575]1993
Failure Code [CA3577]1995
Failure Code [CA3578]1997
Failure Code [CA3582]1999
Failure Code [CA3583]2005
Failure Code [CA3596]2007
Failure Code [CA3649]2009
Failure Code [CA3681]2011
Failure Code [CA3682]2016
Failure Code [CA3713]2022
Failure Code [CA3717]2025
Failure Code [CA3718]2026
Failure Code [CA3725]2027
Failure Code [CA3748]2030
Failure Code [CA3751]2032
Failure Code [CA3755]2034
Failure Code [CA3866]2036
Failure Code [CA3867]2040
Failure Code [CA3868]2043
Failure Code [CA3899]2047
Failure Code [CA3911]2049
Failure Code [CA3912]2053
Failure Code [CA3932]2055
Failure Code [CA3933]2057
Failure Code [CA3934]2059
Failure Code [CA3935]2062
Failure Code [CA3936]2064
Failure Code [CA4151]2066
Failure Code [CA4152]2070
Failure Code [CA4155]2074
Failure Code [CA4156]2076
Failure Code [CA4157]2079
Failure Code [CA4158]2081
Failure Code [CA4159]2082
Failure Code [CA4161]2083
Failure Code [CA4162]2086
Failure Code [CA4163]2089
Failure Code [CA4164]2091
Failure Code [CA4165]2093
Failure Code [CA4166]2095
Failure Code [CA4168]2097
Failure Code [CA4169]2100
Failure Code [CA4171]2102
Failure Code [CA4249]2105
Failure Code [CA4251]2107
Failure Code [CA4259]2109
Failure Code [CA4261]2111
Failure Code [CA4277]2114
Failure Code [CA4281]2118
Failure Code [CA4459]2121
Failure Code [CA4461]2123
Failure Code [CA4658]2126
Failure Code [CA4731]2130
Failure Code [CA4732]2131
Failure Code [CA4739]2132
Failure Code [CA4768]2133
Failure Code [CA4769]2135
Failure Code [CA4842]2138
Failure Code [CA4952]2142
Failure Code [CA5115]2144
Failure Code [CA5179]2147
Failure Code [CA5181]2149
Failure Code [CA5383]2151
Failure Code [D110KB]2153
Failure Code [D19JKZ]2155
Failure Code [D1M3KA]2158
Failure Code [D1M3KB]2160
Failure Code [D1M3KY]2162
Failure Code [D1M3MA]2164
Failure Code [D1M4KA]2165
Failure Code [D1M4KB]2167
Failure Code [D1M4KY]2169
Failure Code [D1M5KA]2171
Failure Code [D1M5KB]2173
Failure Code [D1M5KY]2175
Failure Code [D1M5MA]2177
Failure Code [D811MC]2178
Failure Code [D862KA]2179
Failure Code [D8ALKA]2181
Failure Code [D8ALKB]2184
Failure Code [D8AQKR]2187
Failure Code [D8ARKR]2196
Failure Code [D8G1KT]2201
Failure Code [D8G6KT]2202
Failure Code [DA20MC]2203
Failure Code [DA22KK]2204
Failure Code [DA25KP]2206
Failure Code [DA29KQ]2209
Failure Code [DA2LKA]2211
Failure Code [DA2LKB]2215
Failure Code [DA2QKR]2218
Failure Code [DA2RKR]2228
Failure Code [DAF0KM]2233
Failure Code [DAF0MB]2234
Failure Code [DAF0MC]2235
Failure Code [DAF8KB]2236
Failure Code [DAF9KQ]2238
Failure Code [DAFGMC]2239
Failure Code [DAFLKA]2240
Failure Code [DAFLKB]2244
Failure Code [DAFQKR]2247
Failure Code [DAZ9KQ]2257
Failure Code [DAZQKR]2258
Failure Code [DB2QKR]2267
Failure Code [DB2RKR]2277
Failure Code [DB90MC]2282
Failure Code [DB92KK]2283
Failure Code [DB95KP]2285
Failure Code [DB96KP]2288
Failure Code [DB99KQ]2292
Failure Code [DB9LKA]2294
Failure Code [DB9LKB]2298
Failure Code [DB9QKR]2301
Failure Code [DB9RKR]2311
Failure Code [DBP0KM]2316
Failure Code [DBP0KT]2317
Failure Code [DBP5KB]2318
Failure Code [DBP5KY]2321
Failure Code [DBPQKR]2324
Failure Code [DBR0MC]2334
Failure Code [DBR2KK]2335
Failure Code [DBR5KP]2338
Failure Code [DBR6KP]2340
Failure Code [DBR9KQ]2342
Failure Code [DBRLKA]2344
Failure Code [DBRLKB]2348
Failure Code [DBRQKR]2351
Failure Code [DBRRKR]2361
Failure Code [DBRSKB]2366
Failure Code [DBRTKB]2368
Failure Code [DBUSKR]2370
Failure Code [DD20MA]2374
Failure Code [DDNRKA]2377
Failure Code [DDNRKY]2379
Failure Code [DDNS00]2381
Failure Code [DFB1KZ]2383
Failure Code [DFB2KZ]2385
Failure Code [DFB3L8]2387
Failure Code [DFB4L8]2389
Failure Code [DFB5KZ]2391
Failure Code [DFB6KZ]2393
Failure Code [DGH2KA]2395
Failure Code [DGH2KB]2397
Failure Code [DHA4KA]2399
Failure Code [DHAAMA]2401
Failure Code [DHACMA]2403
Failure Code [DHPAMA]2405
Failure Code [DHPBMA]2408
Failure Code [DHS3MA]2411
Failure Code [DHS4MA]2414
Failure Code [DHS8MA]2417
Failure Code [DHS9MA]2420
Failure Code [DHSAMA]2423
Failure Code [DHSBMA]2426
Failure Code [DHSCMA]2429
Failure Code [DHSDMA]2432
Failure Code [DHSFMA]2435
Failure Code [DHSGMA]2438
Failure Code [DHSHMA]2441
Failure Code [DHSJMA]2444
Failure Code [DHUXMA]2447
Failure Code [DHUYMA]2449
Failure Code [DHX1MA]2451
Failure Code [DHZAMA]2453
Failure Code [DHZCL8]2457
Failure Code [DK80KM]2458
Failure Code [DK80KR]2459
Failure Code [DK80KT]2464
Failure Code [DK8CKR]2465
Failure Code [DK8CKT]2469
Failure Code [DK8DKB]2470
Failure Code [DKG1KM]2472
Failure Code [DKG1L8]2473
Failure Code [DKR0MA]2474
Failure Code [DKR1MA]2477
Failure Code [DKT0KM]2480
Failure Code [DKT0L8]2481
Failure Code [DKT1KA]2482
Failure Code [DKT1KB]2484
Failure Code [DKT2KA]2486
Failure Code [DKT2KB]2488
Failure Code [DKT4KM]2490
Failure Code [DKT4L8]2491
Failure Code [DKT5KA]2492
Failure Code [DKT5KB]2494
Failure Code [DKT6KA]2496
Failure Code [DKT6KB]2498
Failure Code [DKT8KA]2500
Failure Code [DKT8KB]2502
Failure Code [DKT9KA]2504
Failure Code [DKT9KB]2506
Failure Code [DKTAKA]2508
Failure Code [DKTAKB]2510
Failure Code [DKTAMB]2512
Failure Code [DKTBKX]2513
Failure Code [DKTBMC]2515
Failure Code [DKTEMB]2516
Failure Code [DKTFKX]2518
Failure Code [DKTFMC]2520
Failure Code [DKTJMB]2521
Failure Code [DKU1MA]2523
Failure Code [DKU2MA]2524
Failure Code [DKUGKA]2525
Failure Code [DKUGKB]2527
Failure Code [DKUGKY]2529
Failure Code [DKUHKA]2531
Failure Code [DKUHKB]2533
Failure Code [DKUHKY]2535
Failure Code [DKULKA]2537
Failure Code [DKULKB]2539
Failure Code [DKULKY]2541
Failure Code [DKV0KA]2543
Failure Code [DKV0KY]2546
Failure Code [DKV1KA]2548
Failure Code [DKV1KY]2550
Failure Code [DKV2KA]2552
Failure Code [DKV2KY]2554
Failure Code [DKV3KA]2556
Failure Code [DKV3KY]2558
Failure Code [DKV4MA]2560
Failure Code [DKV5MA]2563
Failure Code [DKV6MA]2566
Failure Code [DKV7MA]2569
Failure Code [DKV8MA]2572
Failure Code [DKV9MA]2575
Failure Code [DKVAMA]2578
Failure Code [DKVBKA]2581
Failure Code [DKVBKB]2583
Failure Code [DKVBKY]2585
Failure Code [DKVCKA]2587
Failure Code [DKVCKB]2589
Failure Code [DKVCKY]2591
Failure Code [DKVDKA]2593
Failure Code [DKVDKB]2595
Failure Code [DKVDKY]2597
Failure Code [DKVDMA]2599
Failure Code [DKVKKX]2600
Failure Code [DKVKL8]2601
Failure Code [DKVLMA]2602
Failure Code [DKVMMA]2605
Failure Code [DKVNKX]2608
Failure Code [DKVNL8]2609
Failure Code [DKVPMA]2610
Failure Code [DKVQMA]2613
Failure Code [DLM3KA]2616
Failure Code [DLM3KB]2618
Failure Code [DLM3MB]2620
Failure Code [DR10KA]2621
Failure Code [DR12KA]2624
Failure Code [DR20KA]2626
Failure Code [DR21KX]2628
Failure Code [DR30KA]2630
Failure Code [DR31KX]2632
Failure Code [DR40KA]2634
Failure Code [DUMBKA]2636
Failure Code [DUMBKB]2639
Failure Code [DV20KB]2641
Failure Code [DW43KA]2643
Failure Code [DW43KB]2645
Failure Code [DW43KY]2647
Failure Code [DW45KA]2649
Failure Code [DW45KB]2652
Failure Code [DW45KY]2655
Failure Code [DW4CKY]2657
Failure Code [DW4FKA]2658
Failure Code [DW4FKB]2661
Failure Code [DW4FKY]2663
Failure Code [DW4GKA]2666
Failure Code [DW4GKB]2669
Failure Code [DW4GKY]2671
Failure Code [DW4SKA]2673
Failure Code [DW4SKB]2675
Failure Code [DW4SKY]2677
Failure Code [DW7BKA]2679
Failure Code [DW7BKB]2681
Failure Code [DW7BKY]2682
Failure Code [DW91KA]2683
Failure Code [DW91KB]2685
Failure Code [DW91KY]2687
Failure Code [DWA2KA]2689
Failure Code [DWA2KB]2691
Failure Code [DWA2KY]2693
Failure Code [DWK0KA]2695
Failure Code [DWK0KB]2697
Failure Code [DWK0KY]2699
Failure Code [DWK2KA]2701
Failure Code [DWK2KB]2703
Failure Code [DWK2KY]2705
Failure Code [DWK8KA]2707
Failure Code [DWK8KB]2709
Failure Code [DWK8KY]2711
Failure Code [DWPUKA]2713
Failure Code [DWPUKB]2715
Failure Code [DWPUKY]2717
Failure Code [DX16KA]2719
Failure Code [DX16KB]2721
Failure Code [DXA8KA]2723
Failure Code [DXA8KB]2725
Failure Code [DXA9KA]2727
Failure Code [DXA9KB]2729
Failure Code [DXE0KA]2731
Failure Code [DXE0KB]2733
Failure Code [DXE4KA]2735
Failure Code [DXE4KB]2737
Failure Code [DXE4KY]2739
Failure Code [DXE5KA]2741
Failure Code [DXE5KB]2743
Failure Code [DXE6KA]2745
Failure Code [DXE6KB]2747
Failure Code [DXE7KA]2749
Failure Code [DXE7KB]2751
Failure Code [DXE7KY]2753
Failure Code [DXE8KA]2755
Failure Code [DXE8KB]2757
Failure Code [DXE8KY]2759
Failure Code [DXE9KA]2761
Failure Code [DXE9KB]2763
Failure Code [DXE9KY]2765
Failure Code [DXEAKA]2767
Failure Code [DXEAKB]2769
Failure Code [DXEAKY]2771
Failure Code [DXEKKA]2773
Failure Code [DXEKKB]2775
Failure Code [DXEKKY]2777
Failure Code [DXELKA]2779
Failure Code [DXELKB]2781
Failure Code [DXELKY]2783
Failure Code [DXRWKA]2784
Failure Code [DXRWKB]2786
Failure Code [DXRWKY]2788
Failure Code [DXRXKA]2790
Failure Code [DXRXKB]2792
Failure Code [DXRXKY]2794
Failure Code [DY20KA]2796
Failure Code [DY20MA]2798
Failure Code [DY2CKB]2800
Failure Code [DY2DKB]2803
Failure Code [DY2EKB]2805
Failure Code [F311KA]2807
Failure Code [F311KB]2809
Failure Code [F312KA]2811
Failure Code [F312KB]2813
Failure Code [F313KA]2815
Failure Code [F313KB]2817
Failure Code [F314KA]2820
Failure Code [F314KB]2822
Failure Code [F315KB]2824
Failure Code [F315KY]2826
Failure Code [F316KB]2828
Failure Code [F316KY]2830
Failure Code [F318KB]2832
Failure Code [F318KY]2835
Failure Code [F31AKB]2837
Failure Code [F31AKY]2839
Failure Code [F31BKB]2841
Failure Code [F31BKY]2843
Failure Code [F31CKB]2845
Failure Code [F31CKY]2847
Failure Code [F31DKB]2849
Failure Code [F31DKY]2851
Failure Code [F31EKB]2853
Failure Code [F31EKY]2855
Failure Code [FE0AKA]2857
Failure Code [H16SL8]2859
Failure Code [H17SL8]2861
Troubleshooting of Electrical System (E-Mode)2863
Engine Does Not Start (Engine Does Not Crank)2863
Manual Preheating System Does Not Operate2869
Automatic Preheating System Does Not Operate2872
While Preheating is in Operation, Preheating Monitor Does Not Come On2874
When Starting Switch is Turned to ON Position, Machine Monitor Shows Nothing2876
While Starting Switch is Turned to ON Position (with Engine Stopped), Engine Oil Level Monitor Comes On in Yellow2879
While Starting Switch is Turned to ON Position (with Engine Stopped), Radiator Coolant Level Monitor Comes On in Yellow2880
Engine Coolant Temperature Monitor Comes On in White While Engine is in Operation2881
Hydraulic Oil Temperature Monitor Comes On in White While Engine is in Operation2882
Air Cleaner Clogging Monitor Comes On in Yellow While Engine is in Operation2883
Charge Level Monitor Comes On in Red While Engine is in Operation2884
Fuel Level Monitor Comes On in Red While Engine is in Operation2885
Water Separator Monitor Comes On in Red While Engine is in Operation2886
Engine Coolant Temperature Monitor Comes On in Red While Engine is in Operation2887
Engine Oil Pressure Monitor Comes On in Red While Engine is in Operation2888
Hydraulic Oil Temperature Monitor Comes On in Red While Engine is in Operation2889
Fuel Gauge Does Not Move from Minimum or Maximum2890
Display of Fuel Gauge is Different from Actual Fuel Level2892
Engine Coolant Temperature Gauge Display Does Not Move from Minimum or Maximum2893
Display of Engine Coolant Temperature Gauge is Different from Actual Coolant Temperature2894
Hydraulic Oil Temperature Gauge Does Not Move from Minimum or Maximum2895
Display of Hydraulic Oil Temperature Gauge is Different from Actual Oil Temperature2897
Some Areas of Machine Monitor Screen are Not Shown2898
Function Switch Does Not Operate2899
Automatic Warm-up System Does Not Operate (in Cold Weather)2900
Auto-Deceleration Monitor Does Not Come On or Go Out While Auto-Deceleration Switch is Operated2901
Auto-Decelerator is Not Operated or Canceled with Lever2902
Work Mode Selector Screen is Not Shown While Work Mode Switch is Operated2903
When Working Mode is Changed, Setting of Engine and Hydraulic Pump is Not Changed2904
Travel Speed Monitor Does Not Change While Travel Speed Switch is Operated2905
Travel Speed Does Not Change Even When You Change Travel Speed2906
Alarm Buzzer Does Not Stop2908
Service Meter is Not Shown While Starting Switch is in OFF Position2909
Service Mode Cannot be Selected2910
All Work Equipment, Swing, Travel Do Not Operate2911
All Work Equipment, Swing, Travel Cannot be Locked2913
Bucket Does Not Move with Auto Tilt Function2914
Machine Does Not Swing While Swing Parking Brake Release Switch is Set to Release Position2915
While Swing Parking Brake Release Switch is Turned on, Swing Brake is Not Operated2918
One-Touch Power Maximizing Function Does Not Operate Correctly or Monitor is Not Shown2920
One-Touch Power Maximizing Function is Not Cancelled2922
Travel Alarm Does Not Operate During Travel2923
Travel Alarm Does Not Stop When Machine Stops2925
Horn Does Not Sound2926
Horn Does Not Stop2930
Wiper Monitor Does Not Come On or Go Out While Wiper Switch is Operated2932
Windshield Wiper Does Not Operate When Wiper Switch is Operated2933
When Window Washer Switch is Operated, Window Washer Does Not Operate2935
“Boom Raise” is Not Shown Correctly with Monitoring Function2936
“Boom Lower” is Not Shown Correctly with Monitoring Function2937
“Arm OUT” is Not Shown Correctly with Monitoring Function2938
“Arm IN” is Not Shown Correctly with Monitoring Function2939
Bucket DUMP is Not Shown Correctly with Monitoring Function2940
Bucket CURL is Not Shown Correctly with Monitoring Function2941
Swing is Not Shown Correctly with Monitoring Function2942
Travel is Not Shown Correctly with Monitoring Function2943
Service is Not Shown Correctly with Monitoring Function2944
Attachment Hydraulic Circuit Cannot be Changed2946
KOMTRAX System Does Not Operate Correctly2947
Machine Push-up Function Cannot be Canceled2948
Machine Push-up Function Does Not Operate2950
Control Box Shuts Down After It Shows Messages [GPS receiver not connected !] and [Slope sensor not connected !]2951
Control Box Shows Message [GPS receiver not connected!]2954
Control Box Shows Message [Waiting for radio link]2957
Control Box Shows Message [Tilt Bucket Sensor Offline!]2958
Control Box Shows Message [Waiting for satellites]2959
Control Box Shows Message [Komatsu controller not connected!] Show Production2960
Control Box Shows Message [Sensors are invalid]2963
Control Box Shows Message [Waiting to initialize]2966
Control Box Shows Message [Initializing]2967
Control Box Shows Message [No GPS Localization]2968
Control Box Shows Message [Low precisions]2969
Control Box Displays [Out of design area]2970
Control Box Shows Message [Avoidance Area Breach!]2971
Control Box Shows Message [CPU Load is Increased]2972
Control Box Can Not be Turned on2973
Control Box Does Not Display Intelligent Machine Control Screen2974
Control Box Does Not Display Hydraulic Excavator Image2975
Control Box Does Not Display Design Surface2976
Control Box Touch Panel Does Not Respond2977
Control Box Touch Panel is Inaccurate2978
When You Examine and Adjust the Bucket Edge Position, the Value is Different from Actual Machine2979
Semi-Auto Mode is Not Shown When Auto/Manual Switch is Pushed2981
Auto Grade Assist Control Does Not Operate While “Semi-auto limited digging mode” is Shown2982
Auto Stop Control Does Not Operate While “Semi-Auto Mode” is Shown2983
“Semi-Automatic Mode” is Shown but the Work Mode Icon is Not Shown2984
Bucket Angle Hold Control Does Not Operate2985
Blade Edge Position on Design Surface is Not Accurate When Auto Grade Assist Function is on2986
Blade Edge Stop Position is Not Accurate for Design Surface When Auto Stop Control Function is on2988
Facing Angle Compass Does Not Become Perpendicular to Target2990
NG Occurs Frequently in IMU Calibration Diagnosis2991
Cushion for Arm IN End Does Not Work or is Weak2992
Troubleshooting for Hydraulic and Mechanical Systems (H Mode)2995
Information Shown in Troubleshooting Table (H-Mode)2995
System Chart of Hydraulic and Mechanical Systems2996
Failure Mode and Cause Table2998
All Work Equipment, Swing and Travel Do Not Work3006
All Work Equipment, Swing, and Travel Lack Speed or Power3007
Fine Control Performance or Response is Unsatisfactory3009
Unusual Noise is Heard from Around Hydraulic Pump3010
Engine Speed Drops Largely or Engine Stops3011
Boom Speed or Power is Low3013
Arm Speed or Power is Low3018
Bucket Speed or Power is Low3023
Bucket Does Not Move in Single Operation with Auto Tilt Function3026
Work Equipment Does Not Move in Single Operation3027
Hydraulic Drift of Boom is Large3029
Hydraulic Drift of Arm is Large3031
Hydraulic Drift of Bucket is Large3033
When Single Work Equipment is Released Hydraulically, Other Work Equipment Moves3034
Time Lag of Work Equipment is Large3035
All Work Equipment Do Not Operate3036
One-Touch Power Maximizing Function Does Not Operate3037
Machine Push-up Function Does Not Operate3038
Attachment Circuit Cannot be Changed3039
Oil Flow in Attachment Circuit Cannot be Changed3040
In Mixed Operation of Work Equipment, Work Equipment with Heavier Load Moves Slower3041
In Mixed Operation of Swing and Travel, Travel Speed Falls Largely3042
In Mixed Operation of Swing and Boom RAISE, Boom RAISE Speed is Low3043
Machine Does Not Travel Straight3044
Machine is Not Steered Well or Steering Power is Low3046
Travel Speed is Low3049
One of Tracks Does Not Run3051
Travel Speed Does Not Change, or Travel Speed is Too Slow or Fast3052
Upper Structure Does Not Swing in Two Directions of Right and Left3053
Machine Swings Only in One Direction3054
Swing Acceleration or Swing Speed is Low in Two Directions of Right and Left3055
Swing Acceleration or Swing Speed is Low in Only One Direction3056
Upper Structure Overruns Too Much When It Stops Swing Operation (Right and Left)3057
Upper Structure Overruns Too Much When It Stops Swing Operation (Only One Direction)3058
Shock is Large When Upper Structure Stops Swing Operation3059
Large Unusual Noise is Heard When Upper Structure Stops3060
Swing Drift on a Slope is Large (While Swing Parking Brake is Applied)3061
Swing Drift on a Slope is Large (While Swing Parking Brake is Released)3062
Fan Speed is Abnormal (Too High or Low, or Does Not Rotate)3063
Unusual Noise is Heard from Around Fan3064
Quick Coupler Cylinder Will Not Extend3065
Quick Coupler Cylinder Will Not Retract (but Buzzer Does Not Sound)3067
Buzzer Does not Sound (but Quick Coupler Cylinder Doesretract)3069
Quick Coupler Cylinder Extends and Retracts Slowly3070
Troubleshooting of Engine (S-Mode)3071
Information Shown in Troubleshooting Table (S-Mode)3071
S-1 Engine Does Not Crank When Starting Switch is Turned to Start Position3072
S-2 Engine Cranks but No Exhaust Smoke Comes Out3073
S-3 Fuel is Injected but Engine Does Not Start (Misfiring: Engine Cranks but Does Not Start)3074
S-4 Engine Startability is Unsatisfactory3075
S-5 Engine Does Not Pick Up Smoothly3077
S-6 Engine Stops During Operation3079
S-7 Engine Runs Rough or is Not Stable3081
S-8 Engine Lacks Power3082
S-9 KDPF Becomes Clogged in a Short Time3084
S-10 Engine Oil Consumption is Excessive3086
S-11 Oil Becomes Dirty Quickly3087
S-12 Fuel Consumption is Excessive3088
S-13 Oil is in Coolant (or Coolant Spurts Back or Coolant3089
S-14 Oil Pressure Drops3090
S-15 Fuel Mixes Into Engine Oil3092
S-16 Water Mixes Into Engine Oil (Milky)3093
S-17 Coolant Temperature Increases Too High (Overheating)3094
S-18 Unusual Noise is Heard3095
S-19 Vibration is Excessive3096
S-20 Air Cannot be Bled from Fuel Circuit3097
S-21 Active Regeneration is Done Frequently3098
S-22 Active Regeneration Continues Long3100
S-23 White Smoke is Exhausted During Active Regeneration3101
S-24 DEF Consumption is Excessive3102
S-25 There is Unusual Smell (Irritating Odor)3104
S-26 Foreign Materials Enter DEF (DEF Increases)3105
50 Disassembly and Assembly3107
Table of Contents3108
Related Information on Disassembly and Assembly3114
How to Read This Manual3114
Coating Materials List3115
Special Tool List3120
Sketches of Special Tools3135
Engine and Cooling System3142
Remove and Install Supply Pump Assembly3142
Remove Supply Pump Assembly3142
Install Supply Pump Assembly3148
Remove and Install Injector Assembly3157
How to Remove Injector Assembly3157
How to Install Injector Assembly3163
Remove and Install Fuel Doser Assembly3173
How to Remove Fuel Doser3173
How to Install Fuel Doser3174
Remove and Install Cylinder Head Assembly3176
How to Remove Cylinder Head Assembly3177
How to Install Cylinder Head Assembly3186
Remove and Install EGR Valve Assembly3199
Remove EGR Valve Assembly3199
Install EGR Valve Assembly3201
Remove and Install EGR Cooler Assembly3203
How to Remove EGR Cooler Assembly3203
How to Install EGR Cooler Assembly3207
Remove and Install Starter Assembly3213
Remove Starting Motor Assembly3213
Install Starting Motor Assembly3214
Remove and Install Alternator Belt3216
Remove Alternator Belt3216
Install Alternator Belt3219
Remove and Install Radiator Assembly3224
How to Remove Radiator Assembly3224
How to Install Radiator Assembly3226
Remove and Install Cooling Fan and Fan Motor Assembly3229
Remove Cooling Fan and Fan Motor Assembly3229
Install Cooling Fan and Fan Motor Assembly3233
Remove and Install Hydraulic Oil Cooler Assembly3238
How to Remove Hydraulic Oil Cooler Assembly3238
How to Install Hydraulic Oil Cooler Assembly3240
Remove and Install Aftercooler Assembly3242
Remove Aftercooler Assembly3242
Install Aftercooler Assembly3244
Remove and Install Engine and Main Pump Assembly3248
Remove Engine and Main Pump Assembly3249
Install Engine and Main Pump Assembly3267
Remove and Install Engine Front Oil Seal3286
How to Remove Engine Front Oil Seal3287
How to Install Engine Front Oil Seal3289
Remove and Install Engine Rear Oil Seal3293
How to Remove Engine Rear Oil Seal3294
How to Install Engine Rear Oil Seal3297
Remove and Install Engine Hood Assembly3303
How to Remove Engine Hood Assembly3303
How to Install Engine Hood Assembly3311
Remove and Install Fuel Tank Assembly3322
Remove Fuel Tank Assembly3322
Install Fuel Tank Assembly3327
Remove and Install DEF Tank Assembly3331
How to Remove DEF Tank Assembly3331
How to Install DEF Tank Assembly3337
Remove and Install DEF Tank Sensor Flange Assembly3342
How to Remove DEF Tank Sensor Flange Assembly3342
How to Install DEF Tank Sensor Flange Assembly3349
Remove and Install DEF Tank Sensor3355
Remove DEF Tank Sensor3355
Install DEF Tank Sensor3355
Remove and Install DEF Tank Strainer3362
Remove DEF Tank Strainer3362
Install DEF Tank Strainer3362
Remove and Install DEF Tank Filler Port Filter3363
Remove DEF Tank Filler Port Filter3363
Install DEF Tank Filler Port Filter3365
Remove and Install KDPF Assembly3368
How to Remove KDPF Assembly3368
How to Install KDPF Assembly3372
Disassemble and Assemble KDPF Assembly3377
Disassemble KDPF Assembly3378
Assemble KDPF Assembly3383
Remove and Install SCR Assembly3390
How to Remove SCR Assembly3390
How to Install SCR Assembly3393
Remove and Install KDPF and SCR Assembly3397
How to Remove KDPF and SCR Assembly3397
Install KDPF and SCR Assembly3402
Remove and Install KDPF and SCR Assembly Bracket3407
Remove KDPF and SCR Assembly Bracket3407
Install KDPF and SCR Assembly Bracket3412
Remove and Install Bellows Pipe Assembly3421
How to Remove Bellows Pipe Assembly3421
How to Install Bellows Pipe Assembly3423
Remove and Install KCCV Assembly3427
Remove KCCV Assembly3427
Install KCCV Assembly3428
Remove and Install DEF Mixing Tube3432
Remove DEF Mixing Tube3432
Install DEF Mixing Tube3436
Remove and Install DEF Injector3442
Remove DEF Injector3442
Install DEF Injector3446
Remove and Install DEF Pump3451
REMOVE DEF PUMP (APPLICABLE MACHINE: 85001 to 86052)3451
INSTALL DEF PUMP (APPLICABLE MACHINE: 85001 to 86052)3453
REMOVE DEF PUMP (APPLICABLE MACHINE: 86053 and up)3454
INSTALL DEF PUMP (APPLICABLE MACHINE: 86053 and up)3456
Remove and Install DEF Hose3458
REMOVE DEF HOSE (APPLICABLE MACHINE: 85001 to 86052)3458
INSTALL DEF HOSE (APPLICABLE MACHINE: 85001 to 86052)3464
REMOVE DEF HOSE (APPLICABLE MACHINE: 86053 and up)3471
INSTALL DEF HOSE (APPLICABLE MACHINE: 86053 and up)3476
Remove and Install Air Cleaner Assembly3484
Remove Air Cleaner Assembly3484
Install Air Cleaner Assembly3485
Remove and Install Air Conditioner Compressor Assembly3488
Remove Air Conditioner Compressor Assembly3488
How to Install Air Conditioner Compressor Assembly3491
Remove and Install Air Conditioner Condenser Assembly3495
How to Remove Air Conditioner Condenser Assembly3495
How to Install Air Conditioner Condenser Assembly3496
Power Train3498
Remove and Install Travel Motor and Final Drive Assembly3498
Remove Travel Motor and Final Drive Assembly3498
Install Travel Motor and Final Drive Assembly3499
Disassemble and Assemble Final Drive Assembly3500
Disassemble Final Drive Assembly3500
Assemble Final Drive Assembly3505
Remove and Install Swing Motor and Swing Machinery Assembly3511
Remove Swing Motor and Swing Machinery Assembly3511
Install Swing Motor and Swing Machinery Assembly3512
Disassemble and Assemble Swing Machinery Assembly3514
Disassemble Swing Machinery Assembly3514
Assemble Swing Machinery Assembly3518
Remove and Install Swing Circle Assembly3524
Remove Swing Circle Assembly3524
Install Swing Circle Assembly3524
Undercarriage and Frame3526
Separate and Connect Track Assembly3526
Separate Track Assembly3526
Install Track Assembly3528
Remove and Install Sprocket3531
Remove Sprocket3531
Install Sprocket3531
Remove and Install Idler and Idler Cushion Assembly3533
Remove Idler and Idler Cushion Assembly3533
Install Idler and Idler Cushion Assembly3534
Disassemble and Assemble Idler Assembly3536
Disassemble Idler Assembly3536
Assemble Idler Assembly3538
Disassemble and Assemble Idler Cushion Assembly3543
Disassemble Idler Cushion Assembly3544
Assemble Idler Cushion Assembly3546
Disassemble and Assemble Track Roller Assembly3549
Disassemble Track Roller Assembly3550
Assemble Track Roller Assembly3551
Disassemble and Assemble Carrier Roller Assembly3555
Disassemble Carrier Roller Assembly3555
Assemble Carrier Roller Assembly3557
Remove and Install Revolving Frame Assembly3560
How to Remove Revolving Frame Assembly3560
How to Install Revolving Frame Assembly3563
Remove and Install Counterweight Assembly3567
How to Remove Counterweight Assembly3567
How to Install Counterweight Assembly3568
Hydraulic System3571
Remove and Install Center Swivel Joint Assembly3571
Remove Center Swivel Joint Assembly3571
Install Center Swivel Joint Assembly3573
Disassemble and Assemble Center Swivel Joint Assembly3575
Disassemble Center Swivel Joint Assembly3576
Assemble Center Swivel Joint Assembly3576
Remove and Install Hydraulic Tank Assembly3578
How to Remove Hydraulic Tank Assembly3578
How to Install Hydraulic Tank Assembly3583
Remove and Install Main Pump Assembly3591
Remove Main Pump Assembly3591
Install Main Pump Assembly3595
Remove and Install Junction Block Assembly for Intelligent Machine Control3601
Remove Junction Block Assembly for Intelligent Machine Control3601
Install Junction Block Assembly for Intelligent Machine Control3606
Remove and Install Pressure Sensor for Intelligent Machine Control3612
How to Remove Pressure Sensor for Intelligent Machine Control3612
How to Install Pressure Sensor for Intelligent Machine Control3614
Remove and Install Boom Spool Stroke Sensor3618
How to Remove Boom Spool Stroke Sensor3618
How to Install Boom Spool Stroke Sensor3618
Remove and Install Arm Spool Stroke Sensor3620
How to Remove Arm Spool Stroke Sensor3620
How to Install Arm Spool Stroke Sensor3620
Remove and Install Junction Block Bypass Adapter for Intelligent Machine Control3622
How to Remove Junction Block Bypass Adapter for Intelligent Machine Control3623
How to Remove Junction Block Bypass Adapter for Intelligent Machine Control3624
Remove and Install Control Valve Assembly3626
How to Remove Control Valve Assembly3626
How to Install Control Valve Assembly3636
Disassemble and Assemble Control Valve Assembly3646
Replace Pressure Compensation Valve Seal Ring3647
How to Assemble Control Valve Assembly3648
Disassemble and Assemble Work Equipment PPC Valve Assembly3652
Disassemble Work Equipment PPC Valve Assembly3652
How to Assemble Work Equipment PPC Valve Assembly3653
Disassemble and Assemble Travel PPC Valve Assembly3655
Disassemble Travel PPC Valve Assembly3655
How to Assemble Travel PPC Valve Assembly3656
Work Equipment3658
Remove and Install Bucket Assembly3658
How to Remove Bucket Assembly3658
How to Install Bucket Assembly3658
Remove and Install Arm Assembly3660
How to Remove Arm Assembly3660
How to Install Arm Assembly3665
Remove and Install Work Equipment Assembly3670
How to Remove Work Equipment Assembly3670
How to Install Work Equipment Assembly3675
Remove and Install Boom Anti-drop Valve Assembly3681
How to Remove Boom Anti-drop Valve Assembly3681
How to Install Boom Anti-drop Valve Assembly3685
Remove and Install Arm Anti-Drop Valve Assembly3687
How to Remove Arm Anti-Drop Valve Assembly3687
How to Install Arm Anti-Drop Valve Assembly3690
Disassemble and Assemble Anti-Drop Valve Assembly3691
How to Disassemble Anti-Drop Valve Assembly3691
How to Assemble Anti-Drop Valve Assembly3691
Disassemble and Assemble Boom Cylinder Assembly3692
How to Disassemble Boom Cylinder Assembly3692
How to Assemble Boom Cylinder Assembly3696
Disassemble and Assemble Stroke Sensing Boom Cylinder Assembly3702
How to Disassemble Stroke Sensing Boom Cylinder Assembly3703
How to Assemble Stroke Sensing Boom Cylinder Assembly3708
Disassemble and Assemble Stroke Sensing Arm Cylinder Assembly3717
How to Disassemble Stroke Sensing Arm Cylinder Assembly3718
How to Assemble Stroke Sensing Arm Cylinder Assembly3725
Disassemble and Assemble Stroke Sensing Bucket Cylinder Assembly3734
How to Disassemble Stroke and Reset Sensing Bucket Cylinder Assembly3735
How to Assemble Stroke and Reset Sensing Bucket Cylinder Assembly3740
CAB Related Parts3751
Remove and Install Operator Cab Assembly3751
How to Remove Operator Cab Assembly3751
How to Install Operator Cab Assembly3762
Remove and Install Operator Cab Glass (Adhered Glass)3773
Remove Operator CAB Glass (Adhered Glass)3775
Install Operator CAB Glass (Adhered Glass)3775
Remove and Install Front Window Assembly3785
Remove Front Window Assembly3785
Install Front Window Assembly3788
Remove and Install Floor Frame Assembly3794
How to Remove Floor Frame Assembly3794
How to Install Floor Frame Assembly3801
Remove and Install Air Conditioner Unit Assembly3809
How to Remove Air Conditioner Unit Assembly3809
How to Install Air Conditioner Unit Assembly3816
Remove and Install Operator Seat3824
How to Remove Operator Seat3824
How to Install Operator Seat3826
How to Remove and Install Seat Belt3830
How to Remove Seat Belt3830
How to Install Seatbelt3831
Remove and Install Work Equipment Control Lever Assembly3832
How to Remove Work Equipment Control Lever Assembly3832
How to Install Work Equipment Control Lever Assembly3838
Remove and Install Front Wiper Assembly3846
Remove Front Wiper Assembly3846
How to Install Front Wiper Assembly3852
Electrical System3861
Remove and Install Engine Controller Assembly3861
Remove Engine Controller Assembly3861
Install Engine Controller Assembly3862
Remove and Install Pump Controller Assembly3864
Remove Pump Controller Assembly3864
Install Pump Controller Assembly3869
Remove and Install Work Equipment Controller Assembly3876
How to Remove Work Equipment Controller Assembly3876
How to Install Work Equipment Controller Assembly3878
Remove and Install KomVision Controller Assembly3881
Remove KomVision Controller Assembly3881
Install KomVision Controller Assembly3882
Remove and Install Machine Monitor Assembly3884
How to Remove Machine Monitor Assembly3884
How to Install Machine Monitor Assembly3887
Remove and Install Pump Swash Plate Sensor3891
Remove Pump Swash Plate Sensor3891
Install Pump Swash Plate Sensor3892
Remove and Install Mass Air Flow and Temperature Sensor3893
How to Remove Mass Air Flow and Temperature Sensor3893
How to Install Mass Air Flow and Temperature Sensor3894
Remove and Install KCCV Crankcase Pressure Sensor3896
How to Remove KCCV Crankcase Pressure Sensor3896
How to Install KCCV Crankcase Pressure Sensor3897
Remove and Install SCR Temperature Sensor3899
Remove SCR Temperature Sensor3899
Install SCR Temperature Sensor3901
Remove and Install Rearview Camera3903
Remove Rearview Camera3903
Install Rearview Camera3904
Remove and Install KomVision Camera3906
Remove KomVision Camera3906
Install KomVision Camera3907
Remove and Install Gateway Controller Assembly3909
Remove Gateway Controller Assembly3910
Install Gateway Controller Assembly3916
Remove and Install Communication Terminal Wiring Harness3924
Remove Communication Terminal Wiring Harness3925
Install Communication Terminal Wiring Harness3935
Remove and Install Communication Terminal3947
Remove Communication Terminal3947
Install Communication Terminal3949
Remove and Install ICT Sensor Controller Assembly3951
Remove ICT Sensor Controller Assembly3951
Install ICT Sensor Controller Assembly3953
Remove and Install Junction Harness of Control Box3957
How to Remove Junction Harness of Control Box3957
How to Install Junction Harness of Control Box3960
Remove and Install Control Box Harness3963
Remove Control Box Harness3963
Install Control Box Harness3963
Remove and Install GNSS Receiver3964
Remove GNSS Receiver3964
Install GNSS Receiver3964
Remove and Install GNSS Receiver Antenna3966
How to Remove GNSS Receiver Antenna3966
How to Install GNSS Receiver Antenna3967
Remove and Install Network Modem Antenna3969
Remove Network Modem Antenna3969
Install Network Modem Antenna3969
Remove and Install GNSS Antenna3971
Remove GNSS Antenna3971
Install GNSS Antenna3972
Remove and Install IMU Sensor3973
Remove IMU Sensor3973
Install IMU Sensor3974
60 Maintenance Standard3977
Table of Contents3978
Engine and Cooling System3979
Maintenance Standard for Engine Mount3979
Maintenance Standard for Cooling System3980
Maintenance Standard for Cooling Fan Pump3981
Maintenance Standard for Servo Valve3982
Maintenance Standard for Cooling Fan Motor3983
Power Train3984
Maintenance Standard for Swing Circle3984
Maintenance Standard for Swing Machinery3985
Maintenance Standard for Final Drive3987
Maintenance Standard for Sprocket3989
Maintenance Standard for Sprocket Tooth Profile Full-Scale Drawing3990
Undercarriage and Frame3991
Maintenance Standard for Track Frame and Idler Cushion3991
Maintenance Standard for Idler3993
Maintenance Standard for Track Roller3995
Maintenance Standard for Carrier Roller3997
Maintenance Standard for Track Shoes3998
Maintenance Standard for Triple Shoes4001
Hydraulic System4002
Maintenance Standard for Main Pump4002
Maintenance Standard for Swing Motor4004
Maintenance Standard for Travel Motor4007
Maintenance Standard for Control Valve4010
Maintenance Standard for Boom Anti-Drop Valve4021
Maintenance Standard for Arm Anti-Drop Valve4023
Maintenance Standard for Work Equipment and Swing PPC Valve4025
Maintenance Standard for Travel PPC Valve4028
Maintenance Standard for 1st-Line Attachment PPC Valve (with EPC Valve)4031
Maintenance Standard for EPC Valve of 1st-Line Attachment PPC Valve4032
Maintenance Standard for Solenoid Valve4034
Maintenance Standard for Attachment Circuit Selector Valve4035
Maintenance Standard for Center Swivel Joint4036
Work Equipment4037
Maintenance Standard for Work Equipment Linkage4037
Dimensions of Arm4042
Dimensions of Bucket4044
Maintenance Standard for Boom Cylinder4046
Maintenance Standard for Stroke Sensing Boom Cylinder4047
Maintenance Standard for Stroke Sensing Arm Cylinder4049
Maintenance Standard for Stroke and Reset Sensing Bucket Cylinder4050
Maintenance Standard for Stroke Sensor for Boom Cylinder4051
Maintenance Standard for Stroke Sensor for Arm Cylinder4052
Maintenance Standard for Stroke and Reset Sensor for Bucket Cylinder4053
80 APPENDIX4055
Table of Contents4056
Air Conditioner System4058
Precautions for Refrigerant4058
Air Conditioner Component4059
Specifications of Air Conditioner4061
Structure and Function of Refrigeration Cycle4062
Outline of Refrigeration Cycle4063
Component Parts of Air Conditioner System4065
Air Conditioner Unit4065
Configuration Diagram of Air Conditioner Unit4065
Function of Air Conditioner Unit4067
Component Parts of Air Conditioner Unit4069
Function of Evaporator as Air Conditioner Unit Component4070
Function of Heater Core as Air Conditioner Unit Component4070
Function of Evaporator Temperature Sensor as Air Conditioner Unit Component4070
Function of Servo Motor as Air Conditioner Unit Component4070
Structure of Expansion Valve as Air Conditioner Unit Component4071
Function of Expansion Valve as Air Conditioner Unit Component4071
Operate Expansion Valve as Air Conditioner Unit Component4071
Function of Dual Pressure Switch4072
Air Conditioner Controller4073
Structure of Air Conditioner Controller4073
Compressor4074
Structure of Compressor4074
Specifications of Compressor4074
Function of Compressor4074
Condenser4075
Structure of Condenser4075
Specifications of Condenser4075
Function of Condenser4075
Receiver Drier4076
Structure of Receiver Dryer4076
Specifications of Receiver Dryer4076
Function of Receiver Dryer4076
Air Conditioner Related Sensors4077
Structure of Sunlight Sensor4077
Function of Sunlight Sensor4077
Structure of Outside Temperature Sensor4077
Function of Outside Air Temperature Sensor4077
Explanation of Procedure for Test of and Troubleshooting of Air Conditioner4079
Circuit Diagram and Configuration of Connector Pins of Air Conditioner4081
System Diagram of Air Conditioner4083
Input and Output Signals of Air Conditioner Controller4084
Function of Air Conditioner Controller4085
Locations of Air Conditioner Parts and Layout of Connectors4086
Examine Air Leakage (Duct)4090
How to Examine Air Leakage (Duct)4090
Examine Air Conditioner with Self-Diagnosis Function4091
Open the Electrical System Abnormality Record Screen in Service Mode of Machine Monitor4092
Examine Vent (Mode) Changeover4093
How to Examine Vent (Mode) Changeover4093
Examine Fresh/Recirc Air Changeover4094
How to Examine Fresh/Recirc Air Changeover4094
Examine Sunlight Sensor4095
How to Examine Sunlight Sensor4095
Examine Refrigerant (Dual) Pressure Switch4096
How to Examine Refrigerant (Dual) Pressure Switch4096
Examine Relay4097
How to Examine Relay4097
Air Conditioner Troubleshooting Chart 14098
Air Conditioner Troubleshooting Chart 24099
Information Shown in Troubleshooting Table4102
Failure Code [879AKA]4103
Failure Code [879AKB]4104
Failure Code [879BKA]4105
Failure Code [879BKB]4107
Failure Code [879CKA]4109
Failure Code [879CKB]4110
Failure Code [879DKZ]4111
Failure Code [879EMC]4113
Failure Code [879FMC]4114
Failure Code [879GKX]4115
A-1 Troubleshooting for Power Supply System (Air Conditioner Does Not Operate)4117
A-2 Troubleshooting for Compressor and Refrigerant System (Air is Not Cooled)4119
A-3 Troubleshooting for Blower Motor System (No Air Comes Out or Air Flow is Abnormal)4122
A-4 Troubleshooting for Fresh/Recirc Air Changeover4124
Troubleshooting by Gauge Pressure4126
Connect Service Tool4129
How to Connect Service Tool4129
Precautions for Disconnection and Connection of Air Conditioner Piping4131
Handle Compressor Oil4133
90 Circuit Diagrams4135
Table of Contents4136
Hydraulic Circuit Diagram4137
Symbols Used in Hydraulic Circuit Diagram4137
Hydraulic Circuit Diagram (1/3)4141
Hydraulic Circuit Diagram (2/3)4143
Hydraulic Circuit Diagram (3/3)4145
Electrical Circuit Diagram4147
Symbols Used in Electric Circuit Diagram4147
Electrical Circuit Diagram (1/16)4151
Electrical Circuit Diagram (2/16)4153
Electrical Circuit Diagram (3/16)4155
Electrical Circuit Diagram (4/16)4157
Electrical Circuit Diagram (5/16)4159
Electrical Circuit Diagram (6/16)4161
Electrical Circuit Diagram (7/16)4163
Electrical Circuit Diagram (8/16)4165
Electrical Circuit Diagram (9/16)4167
Electrical Circuit Diagram (10/16)4169
Electrical Circuit Diagram (11/16)4171
Electrical Circuit Diagram (12/16)4173
Electrical Circuit Diagram (13/16)4175
Electrical Circuit Diagram (14/16)4177
Electrical Circuit Diagram (15/16)4179
Electrical Circuit Diagram (16/16)4181
INDEX4183

S.M 30/12/24