Komatsu HYDRAULIC EXCAVATOR PC88MR-11 Shop Manual SEN06843-07 PDF
$38.95
Komatsu HYDRAULIC EXCAVATOR PC88MR-11 Shop Manual SEN06843-07- PDF DOWNLOAD
SERIAL NUMBERS 10001 and up
Description
Komatsu HYDRAULIC EXCAVATOR PC88MR-11 Shop Manual SEN06843-07- PDF DOWNLOAD
FILE DETAILS:
Komatsu HYDRAULIC EXCAVATOR PC88MR-11 Shop Manual SEN06843-07- PDF DOWNLOAD
Language : English
Pages :
Downloadable : Yes
File Type : PDF
DESCRIPTION:
Komatsu HYDRAULIC EXCAVATOR PC88MR-11 Shop Manual SEN06843-07- PDF DOWNLOAD
SERIAL NUMBERS 10001 and up
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.
REMARK
The illustrations in the shop manual reproduce the display of the machine monitor. They are not always the
same as the terminology in 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.
This section describes the special tools, work procedures, and safety precautions necessary for removal, installation,
disassembly, and assembly of the components and parts. In addition, tightening torques, quantity, and
weight of the coating materials, lubricants, and coolant necessary to these works are shown.
60 Maintenance Standard
This section describes the maintenance standard value of each component. The maintenance standard shows
the criteria and remedies for disassembly and assembly.
80 Others
This section describes the structure and function, testing and adjusting, and troubleshooting for all of the other
components or equipment which cannot be separately classified in the appendix.
90 Circuit Diagrams
This section describes hydraulic circuit diagrams and electrical circuit diagrams.
Symbols
Important safety and quality portions are marked with the following symbols so that shop manual is used effectively.
TABLE OF CONTENTS:
Komatsu HYDRAULIC EXCAVATOR PC88MR-11 Shop Manual SEN06843-07- PDF DOWNLOAD
SERIAL NUMBERS 10001 and up
Cover 2
00 Index and Foreword 3
Index 4
Foreword, Safety, Basic Information 17
How to Read the Shop Manual 17
Safety Notice for Operation 19
Precautions to Prevent Fire 27
Procedures If Fire Occurs 29
Precautions When You Discard Waste Materials 30
Precautions When You Handle Hydraulic Equipment 31
Precautions When You Disconnect and Connect Pipings 34
Precautions When You Handle Electrical Equipment 41
Precautions When You Handle Fuel System Equipment 43
Precautions When You Handle Intake System Equipment 44
Practical Use of KOMTRAX 45
Disconnect and Connect Push-Pull Type Coupler 46
How to Disconnect and Connect Type 1 Push-Pull Type Coupler 46
How to Disconnect and Connect Type 2 Push-Pull Type Coupler 47
How to Disconnect and Connect Type 3 Push-Pull Type Coupler 48
Precautions for Disconnection and Connection of Connectors 50
Disconnect and Connect Deutsch Connector 54
How to Disconnect and Connect Slide Lock Type Connector 55
Disconnect and Connect Connector with Lock to Pull 57
Disconnect and Connect Connector with Lock to Push 58
Disconnect and Connect Connector with Housing to Rotate 60
How to Read the Codes for Electric Cable 61
Explanation of Terms for Maintenance Standard 65
Standard Tightening Torque Table 68
Conversion Table 75
Abbreviation List 80
01 Specification 87
Table of Contents 88
Specifications 89
Specification Drawing 89
Specification Drawing: PC88MR-11 89
Working Range Drawings 90
Working Range Drawings: PC88MR-11 90
Specifications 91
Specification: PC88MR-11 91
Weight Table 95
Weight Table: PC88MR-11 95
Fuel, Coolant, Lubricants (For North America) 97
How to Use Fuel, Coolant and Lubricants by Ambient Temperature 98
10 Structure and Function 101
Table of Contents 102
Boot-up System 105
Layout Drawing of Boot-up System 105
System Operating Lamp System 106
System Diagram of System Operating Lamp System (Machine with Gateway Function Controller) 106
Function of System Operating Lamp System (Machine with Gateway Function Controller) 106
Battery Disconnect Switch 108
Function of Battery Disconnect Switch 108
Engine System 109
Layout Drawing of Engine System 109
Engine Control System 111
System Diagram of Engine Control 111
Function of Engine Control System 112
Auto-Deceleration System 114
System Diagram of Auto-Deceleration System 114
Function of Auto-Deceleration System 114
Operation of Auto-Deceleration System 115
Engine Automatic Warm-up System 116
System Diagram of Engine Automatic Warm-up System 116
Function of Engine Automatic Warm-up System 117
Overheat Prevention System 118
Function of Overheat Prevention System 118
Turbocharger Protection System 119
Function of Turbocharger Protection System 119
Automatic Idle Stop System 120
System Diagram of Automatic Idle Stop System (Machine with Gateway Function Controller) 120
Function of Automatic Idle Stop System 120
Component Parts of Engine System 123
PTO 123
Turbocharger 124
EGR System 126
EGR Valve 129
EGR Cooler 131
High Efficiency Breather System 132
High Efficiency Breather 133
Exhaust Throttle Valve 135
KDOC 136
Cooling System 138
Layout Drawing of Cooling System 138
Specifications of Cooling System 139
Control System 140
Layout Drawing of Control System 140
Machine Monitor System 142
System Diagram of Machine Monitor System (Machine with Gateway Function Controller) 142
Function of Machine Monitor System 142
KOMTRAX System 144
System Diagram of KOMTRAX System 144
Function of KOMTRAX System 144
Component Parts of Control System 145
Machine Monitor 145
Gateway Function Controller 157
Communication Terminal 160
Pump Controller 162
Resistor for PC-EPC Valve 166
CAN Terminating Resistor 167
Engine Controller 168
Fuel Control Dial 175
Hydraulic System 176
Layout Drawing of Hydraulic System 176
CLSS 179
Structure of CLSS 179
Function of CLSS 180
Engine and Pump Combined Control System 182
Engine and Pump Combined Control System Diagram 182
Function of Engine and Pump Combined Control System 183
Component Parts of Hydraulic System 186
Hydraulic Tank 187
Main Pump 189
Control Valve 203
Work Equipment System 267
Layout Drawing of Work Equipment System 267
PPC Lock System 269
System Diagram of PPC Lock 269
Function of PPC Lock System 269
Work Equipment and Travel Automatic Lock System 270
System Diagram of Lock Lever Automatic Lock System 270
Function of Work Equipment and Travel Automatic Lock System 270
Operation of Lock Lever Automatic Lock System 271
Attachment Oil Flow Adjuster System 272
Attachment Oil Flow Adjuster System Diagram 272
Function of Attachment Oil Flow Adjuster System 273
Component Parts of Work Equipment System 274
Work Equipment and Swing PPC Valve 274
1st-Line Attachment PPC Valve (with EPC Valve) 279
Attachment Oil Flow Adjuster EPC Valve 285
Blade PPC Valve 286
Boom Swing PPC Valve 288
Solenoid Valve 290
Boom Anti-drop Valve 293
Arm Anti-Drop Valve 298
Multi-Control Valve 303
Pilot Circuit Accumulator 304
Attachment Circuit Accumulator (For Low Pressure Circuit) 305
Swing System 306
Layout Drawing of Swing System 306
Swing Control System Diagram 308
Function of Swing Control System 308
Component Parts of Swing System 310
Swing Motor 310
Swing Machinery 319
Swing Circle 321
Travel System 323
Layout Drawing of Travel System 323
System Diagram of Travel Control System 325
Function of Travel Control System 326
Component Parts of Travel System 328
Travel Motor 328
Travel PPC Valve 337
Center Swivel Joint 341
Undercarriage and Frame 342
Layout Drawing of Undercarriage 342
Specifications of Undercarriage 342
Idler Cushion 344
Structure of Idler Cushion 344
Specifications of Idler Cushion 344
Work Equipment 345
Structure of Work Equipment 345
Function of Work Equipment 346
Work Equipment Clearance Adjustment Shim 347
Function of Work Equipment Clearance Adjustment Shim 347
Bucket Clearance Adjustment Shim 348
Function of Bucket Clearance Adjustment Shim 348
CAB Related Parts 349
ROPS CAB 349
Structure of ROPS CAB 349
Function of ROPS CAB 349
CAB Mount 350
Structure of CAB Mount 350
Function of CAB Mount 351
Remove Wiring Harness Out of Cab 352
20 Standard Value Table 353
Table of Contents 354
Standard Value Table for Engine 355
Standard Value Table for Engine: PC88MR-11 355
Standard Value Table for Machine 357
Standard Value Table for Machine: PC88MR-11 357
Machine Posture and Procedures to Measure Performance 369
30 Testing and Adjusting 375
Table of Contents 376
Precautions Before Work 379
Related Information on Testing and Adjusting 380
Tools for Testing and Adjusting 380
Sketch of Tools for Testing and Adjusting 385
Engine and Cooling System 387
Examine Engine Speed 387
How to Examine Engine Speed 387
Examine Exhaust Gas Color 391
How to Examine Exhaust Gas Color with the Handy Smoke Checker 391
How to Examine Exhaust Gas Color with Smoke Meter 392
Examine and Adjust Valve Clearance 394
How to Examine Valve Clearance 394
How to Adjust Valve Clearance 395
Examine Compression Pressure 396
How to Examine Compression Pressure 396
Examine Blowby Pressure 399
How to Examine Blowby Pressure 399
Examine Engine Oil Pressure 401
How to Examine Engine Oil Pressure 401
Visual Check Inside of EGR Valve 403
How to do the Visual Check Inside of EGR Valve 403
Clean Inside of EGR Valve 405
How to Clean Inside of EGR Valve 405
Examine Fuel Pressure 408
How to Examine Fuel Pressure 408
Examine Fuel Return Rate and Leakage 410
How to Examine Fuel Return Rate and Leakage 412
Bleed Air from Fuel System 415
How to Bleed Air from Fuel System 415
Examine Fuel Circuit for Leakage 417
How to Examine Fuel System for Leakage 417
Handle Cylinder Cut-out Mode Operation 419
Handle No-Injection Cranking Operation 420
Examine Fan Belt 421
How to Examine Fan Belt 421
Examine Automatic Tensioner 422
How to Examine Automatic Tensioner 422
Write Injector Compensation Value to Engine Controller 424
Write Injector Compensation Value 424
Power Train 430
Examine Swing Circle Bearing Clearance 430
How to Examine Swing Circle Bearing Clearance 430
Undercarriage and Frame 431
Examine and Adjust Track Tension 431
How to Examine Track Tension 431
How to Adjust Track Tension 431
Hydraulic System 433
Release Remained Pressure in Hydraulic Circuit 433
How to Release Remained Pressure from Hydraulic Tank 433
How to Release Remained Pressure in Hydraulic Cylinder Circuit 433
How to Release Remained Pressure from Swing Motor Circuit 436
How to Release Remained Pressure from Travel Motor Circuit 436
Release Remained Pressure from Swing Cylinder Circuit 437
Release Remained Pressure from Blade Cylinder 437
Examine and Adjust Oil Pressure in Work Equipment and Travel Circuits 438
Examine Oil Pressure in Work Equipment and Travel Circuits 438
Adjust Oil Pressure in Work Equipment and Travel Circuits 446
Adjust Work Equipment and Travel Relief Pressure 447
Examine and Adjust Swing and Blade Circuit Oil Pressure 448
How to Examine Swing and Blade Relief Pressure 448
Adjust Swing Relief Pressure 450
Adjust Blade LOWER Relief Pressure 450
Adjust Blade RAISE Relief Pressure 451
Examine Oil Pressure of Control Circuit 452
How to Examine Oil Pressure in Control Circuit 452
Examine and adjust oil pressure in pump PC control circuit 454
How to Examine PC Valve Outlet Pressure (Servo Piston Inlet Pressure) 454
Examine Source Pressure of PC-EPC Valve 456
Examine PC-EPC Valve Output Pressure 457
How to Adjust Oil Pressure in Pump PC Control Circuit 458
Examine and Adjust Oil Pressure in Pump LS Control Circuit 460
Examine LS Differential Pressure with Machine Monitor 460
How to Examine LS Differential Pressure by Testing Tool 462
Adjust LS Valve 465
Examine Outlet Pressure of Solenoid Valve 466
How to Examine Outlet Pressure of Solenoid Valve 466
Operating Condition of Solenoid Valve 468
Examine PPC Valve Outlet Pressure 469
How to Examine PPC Valve Outlet Pressure 469
Examine and Adjust Travel Deviation 472
How to Examine Travel Deviation 472
How to Adjust Travel Deviation 473
Examine Parts Which Cause Hydraulic Drift of Work Equipment 475
How to Examine Parts Which Cause Hydraulic Drift of Boom Cylinder and Bucket Cylinder 475
How to Examine the Parts Which Cause Hydraulic Drift of Arm Cylinder 475
How to Examine Parts that Cause Hydraulic Drift of PPC Valve 476
Examine Oil Leakage 477
How to Examine Oil Leakage from Boom Cylinder 477
How to Examine Oil Leakage from Arm Cylinder 478
How to Examine Oil Leakage from Bucket Cylinder 478
How to Examine Oil Leakage from Boom Swing Cylinder 479
How to Examine Oil Leakage from Blade Cylinder 480
How to Examine Oil Leakage from Swing Motor 481
How to Examine Oil Leakage from Travel Motor 482
Bleed Air from Hydraulic System 484
How to Bleed Air from Hydraulic System 485
CAB Related Parts 490
How to Adjust Mirrors 490
Adjust Left Front Mirror 490
Adjust Rear Mirror 491
How to Examine and Adjust Slide Door 492
How to Examine and Adjust Slide Door When It is Closed and Locked 492
How to Examine and Adjust Slide Door When It is Open and Locked 504
Electrical System 517
Set and Operate Machine Monitor 517
Operator Mode 520
Function to Show Technician Identification Status Screen 520
Function to Show Operator Identification Input Screen 520
Examine Function by LCD (Liquid Crystal Display) 521
Examine Function of Service Meter 521
Usage Limitation and Maintenance Password Change Function 522
Service Mode 525
How to Operate Service Mode 525
How to See Pre-defined Monitoring Information 527
How to Examine Monitoring Information 531
Abnormality Record Menu 540
How to See Maintenance Record 545
Maintenance Mode Setting 546
How to Set Phone Number Entry 550
Default Setting Menu 552
Testing Menu 562
Adjustment Menu 565
No-Injection Cranking Operation 579
KOMTRAX Settings Menu 582
How to Show Service Message 584
Start Up KOMTRAX System 586
Adjust Rearview Camera Angle 593
How to Adjust Rearview Camera Angle 593
Adjust Rightview Camera Angle 596
Adjust Right View Camera Angle 596
Set Region of Bluetooth(R) Compatible Radio 599
Set Region of Bluetooth(R) Compatible Radio 599
Handle Voltage Circuit of Engine Controller 601
Handle Battery Disconnect Switch 602
Examine Diodes 603
Examine Diodes by Digital Tester 603
How to Examine Diodes by Analog Tester 603
Pm Clinic 604
Pm Clinic Service 604
Pm Clinic Check Sheet: PC88MR-11 606
40 Troubleshooting 615
Table of Contents 616
Precautions Before Work 623
Related Information to Troubleshooting 624
General Troubleshooting Points 624
Sequence of Events in Troubleshooting 625
Checks Before Troubleshooting 627
Inspection Procedure Before Troubleshooting 629
Walk-Around Check 629
Test in Accordance with Testing Procedure 631
Examine Fuel Level and Type 631
Examine Fuel Prefilter 632
Examine Water Separator, Drain Water and Sediment 632
How to Replace Fuel Prefilter Cartridge 633
Examine Fuel Main Filter 635
Examine Engine Oil Level (Oil Quantity in Oil Pan) 636
Examine Oil Level in PTO Gear Case 637
Examine Coolant Level (Expansion Tank) 639
Examine Air Cleaner Clogging 640
Clean Outer Element 640
Replace Element 642
Examine Hydraulic Oil Level 643
Examine Hydraulic Oil Strainer 645
Examine Hydraulic Oil Filter 647
Examine Oil Level in Swing Machinery Case 648
Examine Oil Level in Final Drive Case 649
Bleed Air from Fuel System 650
Bleed Air from Hydraulic System 650
How to Examine Electric Equipment 650
Preparation for Troubleshooting of Electrical System 655
Preparation for Troubleshooting of Machine Monitor 655
Preparation for Troubleshooting of Engine Controller 657
Preparation for Troubleshooting of Pump Controller 658
Preparation for Troubleshooting of Gateway Function Controller 658
How to Disconnect and Connect Connector with a Special Lock 659
Procedure for Troubleshooting 663
Symptom and Troubleshooting Numbers 666
Information Shown in Troubleshooting Table 671
Diagnose Open Circuit of Hydraulic Pressure Sensor System Wiring Harness 673
Connector and Wiring Harness Identification Table 676
Connector Layout 681
Connector Contact Connection Table 687
T-Branch Box and T-Branch Adapter Table 734
Fuse Location Table 740
Failure Code Table 742
Troubleshooting by Failure Code (Display of Code) 751
Failure Code [879AKA] 751
Failure Code [879AKB] 752
Failure Code [879BKA] 753
Failure Code [879BKB] 755
Failure Code [879CKA] 757
Failure Code [879CKB] 758
Failure Code [879DKZ] 759
Failure Code [879EMC] 761
Failure Code [879FMC] 762
Failure Code [879GKX] 763
Failure Code [989L00] 765
Failure Code [989M00] 766
Failure Code [989N00] 767
Failure Code [A900FR] 768
Failure Code [A900N6] 769
Failure Code [A900NY] 770
Failure Code [AA10NX] 771
Failure Code [AB00KE] 773
Failure Code [B@BAZG] 775
Failure Code [B@BCNS] 776
Failure Code [B@BCQA] 777
Failure Code [B@BCZK] 779
Failure Code [B@HANS] 781
Failure Code [CA115] 783
Failure Code [CA122] 784
Failure Code [CA123] 786
Failure Code [CA131] 788
Failure Code [CA132] 790
Failure Code [CA144] 792
Failure Code [CA145] 794
Failure Code [CA153] 796
Failure Code [CA154] 799
Failure Code [CA187] 802
Failure Code [CA221] 804
Failure Code [CA222] 806
Failure Code [CA227] 808
Failure Code [CA234] 809
Failure Code [CA238] 810
Failure Code [CA239] 812
Failure Code [CA271] 814
Failure Code [CA272] 816
Failure Code [CA322] 818
Failure Code [CA324] 821
Failure Code [CA331] 824
Failure Code [CA343] 827
Failure Code [CA351] 828
Failure Code [CA352] 829
Failure Code [CA356] 831
Failure Code [CA357] 833
Failure Code [CA386] 836
Failure Code [CA435] 837
Failure Code [CA441] 839
Failure Code [CA442] 841
Failure Code [CA449] 842
Failure Code [CA451] 843
Failure Code [CA452] 845
Failure Code [CA515] 847
Failure Code [CA516] 849
Failure Code [CA553] 851
Failure Code [CA559] 852
Failure Code [CA689] 856
Failure Code [CA691] 858
Failure Code [CA692] 860
Failure Code [CA697] 862
Failure Code [CA698] 863
Failure Code [CA731] 864
Failure Code [CA778] 865
Failure Code [CA1117] 868
Failure Code [CA1896] 869
Failure Code [CA1961] 873
Failure Code [CA2185] 874
Failure Code [CA2186] 876
Failure Code [CA2249] 878
Failure Code [CA2272] 879
Failure Code [CA2311] 882
Failure Code [CA2349] 883
Failure Code [CA2353] 885
Failure Code [CA2357] 887
Failure Code [CA2765] 888
Failure Code [CA2973] 889
Failure Code [CA3419] 890
Failure Code [CA3421] 892
Failure Code [CA3724] 894
Failure Code [CA4264] 895
Failure Code [CA4952] 897
Failure Code [D110KB] 899
Failure Code [D19JKZ] 901
Failure Code [D811MC] 903
Failure Code [D862KA] 904
Failure Code [D8ALKA] 905
Failure Code [D8ALKB] 907
Failure Code [D8AQKR] 909
Failure Code [D8G1KT] 914
Failure Code [D8G6KT] 915
Failure Code [DA20MC] 916
Failure Code [DA22KK] 917
Failure Code [DA25KP] 920
Failure Code [DA29KQ] 923
Failure Code [DA2LKA] 925
Failure Code [DA2LKB] 927
Failure Code [DA2QKR] 929
Failure Code [DA2RKR] 935
Failure Code [DAF0MB] 940
Failure Code [DAF0MC] 941
Failure Code [DAF8KB] 942
Failure Code [DAF9KQ] 944
Failure Code [DAFGMC] 945
Failure Code [DAFLKA] 946
Failure Code [DAFLKB] 948
Failure Code [DAFQKR] 950
Failure Code [DAZ9KQ] 956
Failure Code [DAZQKR] 957
Failure Code [DB2QKR] 961
Failure Code [DB2RKR] 967
Failure Code [DDNRKA] 972
Failure Code [DDNRKY] 975
Failure Code [DDNS00] 977
Failure Code [DFB1KZ] 979
Failure Code [DFB3L8] 981
Failure Code [DFB5KZ] 983
Failure Code [DGH2KA] 985
Failure Code [DGH2KB] 987
Failure Code [DHA4KA] 988
Failure Code [DHPAMA] 990
Failure Code [DHS3MA] 992
Failure Code [DHS4MA] 994
Failure Code [DHS5MA] 996
Failure Code [DHS8MA] 998
Failure Code [DHS9MA]1000
Failure Code [DHSAMA]1002
Failure Code [DHSBMA]1004
Failure Code [DHSCMA]1006
Failure Code [DHSDMA]1008
Failure Code [DHSPMA]1010
Failure Code [DHSQMA]1012
Failure Code [DKULKA]1014
Failure Code [DKULKB]1016
Failure Code [DKULKY]1018
Failure Code [DLM5KA]1020
Failure Code [DLM5MB]1022
Failure Code [DV20KB]1024
Failure Code [DW43KA]1026
Failure Code [DW43KB]1028
Failure Code [DW43KY]1030
Failure Code [DW45KA]1031
Failure Code [DW45KB]1034
Failure Code [DW45KY]1037
Failure Code [DW4CKY]1039
Failure Code [DWA2KA]1041
Failure Code [DWA2KB]1043
Failure Code [DWA2KY]1045
Failure Code [DWJ0KA]1046
Failure Code [DWJ0KB]1048
Failure Code [DWJ0KY]1050
Failure Code [DWN5KA]1051
Failure Code [DWN5KB]1053
Failure Code [DWN5KY]1055
Failure Code [DXA8KA]1057
Failure Code [DXA8KB]1059
Failure Code [DXE7KA]1061
Failure Code [DXE7KB]1063
Failure Code [DXE7KY]1065
Failure Code [DXEAKA]1066
Failure Code [DXEAKB]1068
Failure Code [DXEAKY]1070
Failure Code [DY20KA]1071
Failure Code [DY20MA]1073
Failure Code [DY2CKB]1075
Failure Code [DY2DKB]1077
Failure Code [DY2EKB]1079
Failure code [F311KA]1081
Failure code [F311KB]1083
Failure code [F312KA]1085
Failure code [F312KB]1087
Failure Code [F313KA]1089
Failure Code [F313KB]1090
Failure code [F314KA]1091
Failure code [F314KB]1093
Failure Code [F315KB]1095
Failure Code [F315KY]1097
Failure code [F316KB]1099
Failure code [F316KY]1101
Failure Code [F318KB]1103
Failure Code [F318KY]1104
Failure code [F31AKB]1105
Failure code [F31AKY]1107
Failure Code [F31BKB]1109
Failure Code [F31BKY]1111
Failure Code [F31CKB]1113
Failure Code [F31CKY]1115
Failure Code [F31DKB]1117
Failure Code [F31DKY]1119
Failure Code [F31EKB]1121
Failure Code [F31EKY]1123
Failure Code [FS10ZE]1125
Troubleshooting of Electrical System (E-Mode)1126
Engine Does Not Start (Engine Does Not Crank)1126
Manual Preheating System Does Not Operate1132
While Preheating is in Operation, Preheating Monitor Does Not Come On1135
When Starting Switch is Turned to ON Position, Machine Monitor Shows Nothing1137
Engine Coolant Temperature Monitor Comes On in White While Engine is in Operation1140
Hydraulic Oil Temperature Monitor Comes On in White While Engine is in Operation1141
Charge Level Monitor Comes On in Red While Engine is in Operation1142
Fuel Level Monitor Comes On in Red While Engine is in Operation1143
Engine Coolant Temperature Monitor Comes On in Red While Engine is in Operation1144
Engine Oil Pressure Monitor Comes On in Red While Engine is in Operation1145
Hydraulic Oil Temperature Monitor Comes On in Red While Engine is in Operation1146
Fuel Gauge Does Not Move from Minimum or Maximum1147
Display of Fuel Gauge is Different from Actual Fuel Level1149
Coolant Temperature Gauge Display Does Not Move from Minimum or Maximum1150
Display of Coolant Temperature Gauge is Different from Actual Coolant Temperature1151
Hydraulic Oil Temperature Gauge Does Not Move from Minimum or Maximum1152
Display of Hydraulic Oil Temperature Gauge is Different from Actual Oil Temperature1154
Some Areas of Machine Monitor Screen are Not Shown1155
Function Switch Does Not Operate1156
Automatic Warm-up System Does Not Operate (in Cold Weather)1157
Auto-Deceleration Monitor Does Not Come On or Go Out While Auto-Deceleration Switch is Operated1158
Auto-Decelerator is Not Operated or Canceled with Lever1159
Work Mode Selector Screen is Not Shown While Work Mode Switch is Operated1160
When Working Mode is Changed, Setting of Engine and Hydraulic Pump is Not Changed1161
Travel Speed Monitor Does Not Change While Travel Speed Switch is Operated1162
Travel Speed Does Not Change Even When You Change Travel Speed1163
Alarm Buzzer Does Not Stop1164
Service Meter is Not Shown While Starting Switch is in OFF Position1165
Service Mode Cannot be Selected1166
All Work Equipment, Swing, Travel Do Not Operate1167
All Work Equipment, Swing, Travel Cannot be Locked1170
Machine Does Not Swing While Swing Parking Brake Release Switch is Set to Release Position1172
While Swing Parking Brake Release Switch is Turned on, Swing Brake is Not Operated1174
Work Equipment Does Not Operate While Lock Lever Automatic Release Switch is in Release Position1176
Travel Alarm Does Not Operate During Travel1178
Travel Alarm Does Not Stop When Machine Stops1180
Horn Does Not Sound1181
Horn Does Not Stop1183
Wiper Monitor Does Not Come On or Go Out While Wiper Switch is Operated1184
Windshield Wiper Does Not Operate When Wiper Switch is Operated1185
When Window Washer Switch is Operated, Window Washer Does Not Operate1187
“Boom Raise” is Not Shown Correctly with Monitoring Function1188
“Boom Lower” is Not Shown Correctly with Monitoring Function1189
“Arm OUT” is Not Shown Correctly with Monitoring Function1190
“Arm IN” is Not Shown Correctly with Monitoring Function1191
Bucket DUMP is Not Shown Correctly with Monitoring Function1192
Bucket CURL is Not Shown Correctly with Monitoring Function1193
Boom Swing Left is Not Shown Correctly with Monitoring Function1194
Boom Swing Right is Not Shown Correctly with Monitoring Function1195
Swing is Not Shown Correctly with Monitoring Function1196
Travel is Not Shown Correctly with Monitoring Function1197
Blade RAISE is Not Shown Correctly with Monitoring Function1198
Blade LOWER is Not Shown Correctly with Monitoring Function1200
KOMTRAX System Does Not Operate Correctly1202
Troubleshooting for Hydraulic and Mechanical Systems (H Mode)1203
Information Shown in Troubleshooting Table (H-Mode)1203
Failure Mode and Cause Table1204
All Work Equipment, Swing and Travel Do Not Work1216
All Work Equipment, Swing, and Travel Lack Speed or Power1217
Fine Control Performance or Response is Unsatisfactory1219
Unusual Noise is Heard from Around Hydraulic Pump1220
Engine Speed Drops Largely or Engine Stops1221
Boom Speed or Power is Low1223
Arm Speed or Power is Low1227
Bucket Speed or Power is Low1230
Blade Speed or Power is Low1233
Boom Swing Speed or Power is Low1235
Work Equipment Does Not Move in Single Operation1238
Hydraulic Drift of Boom is Large1239
Hydraulic Drift of Arm is Large1240
Hydraulic Drift of Bucket is Large1241
Hydraulic Drift of Blade is Large1242
When Single Work Equipment is Released Hydraulically, Other Work Equipment Moves1243
Time Lag of Work Equipment is Large1244
Attachment Circuit Cannot be Changed1246
Oil Flow in Attachment Circuit Cannot be Changed1247
In Mixed Operation of Work Equipment, Work Equipment with Heavier Load Moves Slower1248
In Mixed Operation of Work Equipment or Swing and Travel, Travel Speed Falls Largely1249
In Mixed Operation of Swing and Boom RAISE, Boom RAISE Speed is Low1251
Machine Does Not Travel Straight1252
Machine is Not Steered Well or Steering Power is Low1255
Travel Speed is Low1258
One of Tracks Does Not Run1261
Travel Speed Does Not Change, or Travel Speed is Too Slow or Fast1263
Upper Structure Does Not Swing in Two Directions of Right and Left1264
Machine Swings Only in One Direction1266
Swing Acceleration or Swing Speed is Low in Two Directions of Right and Left1267
Swing Acceleration or Swing Speed is Low in Only One Direction1268
Upper Structure Overruns Too Much When It Stops Swing Operation (Right and Left)1269
Upper Structure Overruns Too Much When It Stops Swing Operation (Only One Direction)1270
Shock is Large When Upper Structure Stops Swing Operation1271
Large Unusual Noise is Made When Upper Structure Stops Swing Operation1272
Swing Drift on a Slope is Large (While Swing Parking Brake is Applied)1273
Swing Drift on a Slope is Large (While Swing Parking Brake is Released)1274
Fan Speed is Abnormal (Too High or Low, or Does Not Rotate)1275
Unusual Noise is Heard from Around Fan1276
Troubleshooting of Engine (S-Mode)1277
Information Shown in Troubleshooting Table (S-Mode)1277
Engine Does Not Crank When Starting Switch is Turned to Start Position1278
Engine Cranks but No Exhaust Smoke Comes Out1279
Fuel is Sprayed but Engine Does Not Start (Misfiring: Engine Cranks but Does Not Start)1280
Engine Startability is Unsatisfactory1281
Engine Does Not Pick Up Smoothly1283
Engine Stops During Operation1285
Engine Does Not Rotate Smoothly1287
Engine Lacks Output (or Lacks Power)1288
Exhaust Smoke is Black1290
Engine Oil Consumption is Excessive1292
Engine Oil Becomes Dirty Quickly1293
Fuel Consumption is Excessive1294
Oil is in Coolant (or Coolant Spurts Back or Coolant Level Goes Down)1295
Engine Oil Pressure Drops1296
Fuel Mixes Into Engine Oil1297
Water Mixes Into Engine Oil (Milky)1298
Coolant Temperature Increases Too High (Overheat)1299
Unusual Noise is Heard1300
Vibration is Excessive1301
Air Cannot be Bled from Fuel Circuit1302
50 Disassembly and Assembly1303
Table of Contents1304
Precautions Before Work1308
Related Information on Disassembly and Assembly1309
How to Read This Manual1309
Coating Materials List1310
Special Tool List1315
Sketches of Special Tools1332
Prepare1335
Drain and Add Coolant1335
How to Drain Coolant1336
How to Add Coolant1337
Drain and Add Hydraulic Oil1338
How to Drain Hydraulic Oil1339
How to Add Hydraulic Oil1340
Drain and Add Fuel1342
How to Drain Fuel1343
How to Add Fuel1343
Collect and Refill Refrigerant1345
How to Collect Refrigerant1345
How to Refill Refrigerant1346
Engine and Cooling System1347
Remove and Install Supply Pump Assembly1347
How to Remove Supply Pump Assembly1348
How to Install Supply Pump Assembly1358
Remove and Install Injector Assembly1367
How to Remove Injector Assembly1368
How to Install Injector Assembly1372
Remove and Install Cylinder Head Assembly1379
How to Remove Cylinder Head Assembly1381
How to Install Cylinder Head Assembly1410
Remove and Install EGR Valve Assembly1450
How to Remove EGR Valve Assembly1451
How to Install EGR Valve Assembly1452
Remove and Install EGR Cooler Assembly1455
How to Remove EGR Cooler Assembly1456
Install EGR Cooler Assembly1462
Remove and Install Starter Assembly1468
How to Remove Starting Motor Assembly1469
How to Install Starting Motor Assembly1471
Remove and Install Fan Belt1474
Remove Fan Belt1475
Install Fan Belt1477
Remove and Install Automatic Tensioner1479
How to Remove Auto-Tensioner1479
How to Install Auto-Tensioner1480
Remove and Install Expansion Tank Assembly1481
Remove Expansion Tank Assembly1482
Install Expansion Tank Assembly1486
Remove and Install Radiator Assembly1491
How to Remove Radiator Assembly1492
How to Install Radiator Assembly1495
Remove and Install Hydraulic Oil Cooler Assembly1498
How to Remove Hydraulic Oil Cooler Assembly1499
How to Install Hydraulic Oil Cooler Assembly1508
Remove and Install Aftercooler Assembly1517
How to Remove Aftercooler Assembly1518
How to Install Aftercooler Assembly1520
Remove and Install Engine and Main Pump Assembly1523
How to Remove Engine and Main Pump Assembly1525
How to Install Engine and Main Pump Assembly1548
Remove and Install Engine Front Oil Seal1573
How to Remove Engine Front Oil Seal1574
How to Install Engine Front Oil Seal1575
Remove and Install Engine Rear Oil Seal1578
How to Remove Engine Rear Oil Seal1579
How to Install Engine Rear Oil Seal1581
Remove and Install Fuel Cooler Assembly1585
Remove Fuel Cooler Assembly1586
Install Fuel Cooler Assembly1586
Remove and Install Engine Hood Assembly1588
How to Remove Engine Hood Assembly1588
How to Install Engine Hood Assembly1591
Remove and Install KDOC Assembly1594
How to Remove KDOC Assembly1595
How to Install KDOC Assembly1599
Remove and Install Fuel Tank Assembly1604
How to Remove Fuel Tank Assembly1605
How to Install Fuel Tank Assembly1610
Remove and Install Air Cleaner Assembly1615
How to Remove Air Cleaner Assembly1616
How to Install Air Cleaner Assembly1617
Remove and Install Air Conditioner Compressor Assembly1620
How to Remove Air Conditioner Compressor Assembly1621
How to Install Air Conditioner Compressor Assembly1623
Remove and Install Air Conditioner Condenser Assembly1625
How to Remove Air Conditioner Condenser Assembly1626
How to Install Air Conditioner Condenser Assembly1628
Power Train1630
Remove and Install Travel Motor and Final Drive Assembly1630
How to Remove Travel Motor and Final Drive Assembly1631
How to Install Travel Motor and Final Drive Assembly1634
Disassemble and Assemble Travel Motor and Final Drive Assembly1638
Disassemble Travel Motor and Final Drive Assembly1647
Assemble Travel Motor and Final Drive Assembly1667
Remove and Install Swing Motor and Swing Machinery Assembly1686
How to Remove Swing Motor and Swing Machinery Assembly1687
How to Install Swing Motor and Swing Machinery Assembly1692
Disassemble and Assemble Swing Machinery Assembly1697
How to Disassemble Swing Machinery Assembly1698
How to Assemble Swing Machinery Assembly1703
Remove and Install Swing Circle Assembly1709
How to Remove Swing Circle Assembly1709
How to Install Swing Circle Assembly1710
Undercarriage and Frame1711
Separate and Connect Track Assembly1711
Separate Track Assembly1712
How to Install Track Assembly1712
Remove and Install Sprocket1714
Remove Sprocket1714
Install Sprocket1715
Remove and Install Idler and Idler Cushion Assembly1716
Remove Idler and Idler Cushion Assembly1716
Install Idler and Idler Cushion Assembly1717
Disassemble and Assemble Idler Assembly1718
How to Disassemble Idler Assembly1718
How to Assemble Idler Assembly1719
Disassemble and Assemble Idler Cushion Assembly1722
Disassemble Idler Cushion Assembly1722
Assemble Idler Cushion Assembly1723
Disassemble and Assemble Track Roller Assembly1725
How to Disassemble Track Roller Assembly1725
How to Assemble Track Roller Assembly1727
Remove and Install Revolving Frame Assembly1730
How to Remove Revolving Frame Assembly1731
How to Install Revolving Frame Assembly1737
Remove and Install Counterweight Assembly1743
How to Remove Counterweight Assembly1744
How to Install Counterweight Assembly1748
Hydraulic System1753
Remove and Install Center Swivel Joint Assembly1753
How to Remove Center Swivel Joint Assembly1754
Install Center Swivel Joint Assembly1759
Disassemble and Assemble Center Swivel Joint Assembly1765
How to Disassemble Center Swivel Joint Assembly1765
How to Assemble Center Swivel Joint Assembly1766
Remove and Install Hydraulic Tank Assembly1767
How to Remove Hydraulic Tank Assembly1768
How to Install Hydraulic Tank Assembly1772
Remove and Install Main Pump Assembly1776
How to Remove Main Pump Assembly1777
How to Install Main Pump Assembly1786
Remove and Install Control Valve Assembly1795
How to Remove Control Valve Assembly1797
How to Install Control Valve Assembly1819
Disassemble and Assemble Control Valve Assembly1841
How to Assemble Control Valve Assembly1841
Replace Pressure Reducing Valve Cartridge Assembly1843
Disassemble and Assemble Work Equipment PPC Valve Assembly1846
How to Disassemble Work Equipment PPC Valve Assembly1846
How to Assemble Work Equipment PPC Valve Assembly1847
Disassemble and Assemble Travel PPC Valve Assembly1849
How to Disassemble Travel PPC Valve Assembly1849
How to Assemble Travel PPC Valve Assembly1850
Work Equipment1852
Remove and Install Blade Assembly1852
How to Remove Blade Assembly1853
How to Install Blade Assembly1855
Remove and Install Work Equipment Assembly1858
How to Remove Work Equipment Assembly1860
How to Install Work Equipment Assembly1864
Remove and Install Boom Swing Bracket1869
Remove Boom Swing Bracket1870
Install Boom Swing Bracket1873
Remove and Install Boom Anti-drop Valve Assembly1877
How to Remove Boom Anti-drop Valve Assembly1878
How to Install Boom Anti-drop Valve Assembly1881
Remove and Install Arm Anti-Drop Valve Assembly1884
How to Remove Arm Anti-Drop Valve Assembly1885
How to Install Arm Anti-Drop Valve Assembly1888
Disassemble and Assemble Anti-Drop Valve Assembly1890
How to Disassemble Anti-Drop Valve Assembly1890
How to Assemble Anti-Drop Valve Assembly1890
Disassemble and Assemble Boom Cylinder Assembly1891
How to Disassemble Boom Cylinder Assembly1891
How to Assemble Boom Cylinder Assembly1893
Disassemble and Assemble Arm Cylinder Assembly1896
How to Disassemble Arm Cylinder Assembly1896
How to Assemble Arm Cylinder Assembly1898
Disassemble and Assemble Bucket Cylinder Assembly1902
How to Disassemble Bucket Cylinder Assembly1902
How to Assemble Bucket Cylinder Assembly1904
Disassemble and Assemble Blade Cylinder Assembly1907
Disassemble Blade Cylinder Assembly1907
Assemble Blade Cylinder Assembly1909
Disassemble and Assemble Swing Cylinder Assembly1912
Disassemble Swing Cylinder Assembly1912
Assemble Swing Cylinder Assembly1914
CAB Related Parts1918
Remove and Install Operator Cab Assembly1918
How to Remove Operator Cab Assembly1919
How to Install Operator Cab Assembly1935
Remove and Install Slide Door1950
How to Remove Slide Door1950
How to Install Slide Door1950
Remove and Install Operator Cab Glass (Adhered Glass)1952
Remove Operator CAB Glass (Adhered Glass)1953
Install Operator CAB Glass (Adhered Glass)1954
Remove and Install Front Window Assembly1963
Remove Front Window Assembly1963
Install Front Window Assembly1965
Remove and Install Floor Frame Assembly1967
How to Remove Floor Frame Assembly1968
How to Install Floor Frame Assembly1977
Remove and Install Air Conditioner Unit Assembly1987
How to Remove Air Conditioner Unit Assembly1988
How to Install Air Conditioner Unit Assembly2001
Remove and Install Operator Seat2014
How to Remove Operator Seat2015
How to Install Operator Seat2016
How to Remove and Install Seat Belt2019
How to Remove Seat Belt2020
How to Install Seatbelt2020
Remove and Install Front Wiper Assembly2021
Remove Front Wiper Assembly2022
How to Install Front Wiper Assembly2028
Electrical System2034
Remove and Install Engine Controller Assembly2034
How to Remove Engine Controller Assembly2035
How to Install Engine Controller Assembly2037
Remove and Install Pump Controller Assembly2040
Remove Pump Controller Assembly2041
Install Pump Controller Assembly2043
Remove and Install Machine Monitor Assembly2045
How to Remove Machine Monitor Assembly2046
How to Install Machine Monitor Assembly2051
Remove and Install Mass Air Flow and Temperature Sensor2056
How to Remove Mass Air Flow and Temperature Sensor2057
How to Install Mass Air Flow and Temperature Sensor2058
Remove and Install Gateway Function Controller2059
How to Remove Gateway Function Controller2060
How to Install Gateway Function Controller2062
60 Maintenance Standard2065
Table of Contents2066
Engine and Cooling System2067
Maintenance Standard for Engine Mount2067
Maintenance Standard for PTO2068
Maintenance Standard for Cooling System2069
Power Train2070
Maintenance Standard for Swing Circle2070
Maintenance Standard for Swing Machinery2072
Maintenance Standard for Sprocket2074
Undercarriage and Frame2075
Maintenance Standard for Track Frame and Idler Cushion2075
Maintenance Standard for Idler2077
Maintenance Standard for Track Roller2079
Maintenance Standard for Carrier Roller2080
Maintenance Standard for Track Shoes2081
Maintenance Standard for Triple Shoes2084
Maintenance Standard for Rubber Shoes2085
Hydraulic System2086
Maintenance Standard for Hydraulic Tank2086
Maintenance Standard for Main Pump2087
Maintenance Standard for Main Pump Servo Valve2089
Maintenance Standard for PC-EPC Valve2090
Maintenance Standard for Swing Motor2091
Maintenance Standard for Travel Motor2093
Maintenance Standard for Control Valve2094
Maintenance Standard for Boom Anti-Drop Valve2105
Maintenance Standard for Arm Anti-Drop Valve2107
Maintenance Standard for Work Equipment and Swing PPC Valve2109
Maintenance Standard for Blade PPC Valve2112
Maintenance Standard for Boom Swing PPC Valve2114
Maintenance Standard for Travel PPC Valve2116
Maintenance Standard for 1st-Line Attachment PPC Valve (with EPC Valve)2119
Maintenance Standard for EPC Valve of 1st-Line Attachment PPC Valve2120
Maintenance Standard for Solenoid Valve2122
Maintenance Standard for Attachment Oil Flow Adjuster EPC Valve2123
Maintenance Standard for Attachment Circuit Accumulator (For Low Pressure Circuit)2124
Maintenance Standard for Center Swivel Joint2125
Work Equipment2126
Maintenance Standard for Work Equipment Linkage2126
Dimensions of Arm2132
Dimensions of Bucket2134
Maintenance Standard for Boom Cylinder2136
Maintenance Standard for Arm Cylinder2137
Maintenance Standard for Bucket Cylinder2138
Maintenance Standard for Boom Swing Cylinder2139
Maintenance Standard for Blade Cylinder2140
80 Appendix2141
Table of Contents2142
Precautions Before Work2144
Air Conditioner System2145
Precautions for Refrigerant2145
Air Conditioner Component2146
Specifications of Air Conditioner2148
Structure and Function of Refrigeration Cycle2149
Outline of Refrigeration Cycle2150
Component Parts of Air Conditioner System2152
Air Conditioner Unit2152
Configuration Diagram of Air Conditioner Unit2152
Function of Air Conditioner Unit2154
Component Parts of Air Conditioner Unit2155
Function of Evaporator as Air Conditioner Unit Component2156
Function of Heater Core as Air Conditioner Unit Component2156
Function of Evaporator Temperature Sensor as Air Conditioner Unit Component2156
Function of Servo Motor as Air Conditioner Unit Component2157
Structure of Expansion Valve as Air Conditioner Unit Component2158
Function of Expansion Valve as Air Conditioner Unit Component2158
Operate Expansion Valve as Air Conditioner Unit Component2158
Function of Dual Pressure Switch2159
Air Conditioner Controller2160
Structure of Air Conditioner Controller2160
Compressor2161
Structure of Compressor2161
Specifications of Compressor2161
Function of Compressor2161
Condenser2162
Structure of Condenser2162
Specifications of Condenser2162
Function of Condenser2162
Receiver Drier2163
Structure of Receiver Dryer2163
Specifications of Receiver Dryer2163
Function of Receiver Dryer2163
Air Conditioner Related Sensors2164
Structure of Sunlight Sensor2164
Function of Sunlight Sensor2164
Structure of Outside Temperature Sensor2164
Function of Outside Air Temperature Sensor2164
Explanation of Procedure for Test of and Troubleshooting of Air Conditioner2166
Circuit Diagram and Configuration of Connector Pins of Air Conditioner2168
System Diagram of Air Conditioner2170
Input and Output Signals of Air Conditioner Controller2171
Function of Air Conditioner Controller2172
Locations of Air Conditioner Parts and Layout of Connectors2173
Examine Air Leakage (Duct)2179
How to Examine Air Leakage (Duct)2179
Examine Air Conditioner with Self-Diagnosis Function2180
Open the Electrical System Abnormality Record Screen in Service Mode of Machine Monitor2181
Examine Vent (Mode) Changeover2182
How to Examine Vent (Mode) Changeover2182
Examine Fresh/Recirc Air Changeover2183
How to Examine Fresh/Recirc Air Changeover2183
Examine Sunlight Sensor2184
How to Examine Sunlight Sensor2184
Examine Refrigerant (Dual) Pressure Switch2185
How to Examine Refrigerant (Dual) Pressure Switch2185
Examine Relay2187
How to Examine Relay2187
Air Conditioner Troubleshooting Chart 12188
Air Conditioner Troubleshooting Chart 22189
Information Shown in Troubleshooting Table2192
Failure Code [879AKA]2193
Failure Code [879AKB]2194
Failure Code [879BKA]2195
Failure Code [879BKB]2197
Failure Code [879CKA]2199
Failure Code [879CKB]2200
Failure Code [879DKZ]2201
Failure Code [879EMC]2203
Failure Code [879FMC]2204
Failure Code [879GKX]2205
Troubleshooting for Power Supply System (Air Conditioner Does Not Operate)2207
Troubleshooting for Compressor and Refrigerant System (Air is Not Cooled)2209
Troubleshooting for Blower Motor System (No Air Comes Out or Air Flow is Abnormal)2212
Troubleshooting for Fresh/Recirc Air Changeover2214
Troubleshooting by Gauge Pressure2216
Connect Service Tool2219
How to Connect Service Tool2219
Precautions for Disconnection and Connection of Air Conditioner Piping2221
Handle Compressor Oil2223
90 Circuit Diagrams2225
Table of Contents2226
How to Read the Codes for Electric Cable2227
Hydraulic Circuit Diagram2231
Symbols Used in Hydraulic Circuit Diagram2231
Hydraulic Circuit Diagram2235
Hydraulic Circuit Diagram (at Boom Raise Operation)2237
Hydraulic Circuit Diagram (at Left Swing Operation)2239
Hydraulic Circuit Diagram (at Boom Raise and Left Swing Operation)2241
Electrical Circuit Diagram2243
Symbols Used in Electric Circuit Diagram2243
Electrical Circuit Diagram (1/8)2247
Electrical Circuit Diagram (2/8)2249
Electrical Circuit Diagram (3/8)2251
Electrical Circuit Diagram (4/8)2253
Electrical Circuit Diagram (5/8)2255
Electrical Circuit Diagram (6/8)2257
Electrical Circuit Diagram (7/8)2259
Electrical Circuit Diagram (8/8)2261
Index2263
IMAGES PREVIEW OF THE MANUAL:
S.M 28/12/24
