Komatsu HYDRAULIC EXCAVATOR PC138USLC-10 Shop Manual SEN06062-15 PDF

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Komatsu HYDRAULIC EXCAVATOR PC138USLC-10 Shop Manual SEN06062-15 – PDF DOWNLOAD

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Komatsu HYDRAULIC EXCAVATOR PC138USLC-10 Shop Manual SEN06062-15 – PDF DOWNLOAD

Language : English
Pages :1968
Downloadable : Yes
File Type : PDF

DESCRIPTION:

Komatsu HYDRAULIC EXCAVATOR PC138USLC-10 Shop Manual SEN06062-15 – PDF DOWNLOAD

SERIAL NUMBERS 40001 and up

General precautions

Inappropriate handling causes an extreme danger. Read and understand what is described in the operation and maintenance manual before operating the machine. Read and understand what is described in this manual before starting the work.

• Before performing any greasing or repairs, read all the safety labels stuck to the machine. For the locations of the safety labels and detailed explanation of precautions, see the operation and maintenance manual.
• Locate a place in the repair workshop to keep the tools and removed parts. Always keep the tools and parts in their correct places. Always keep the work area clean and make sure that there is no dirt, water or oil on the floor. Smoke only in the areas provided for smoking. Never smoke while working.
• When performing any work, always wear the safety shoes and helmet. Do not wear loose work cloths, or clothes with buttons missing. 1. Always wear the protective eyeglasses when hitting parts with a hammer. 2. Always wear the protective eyeglasses when grinding parts with a grinder, etc.
• When performing any work with 2 or more workers, always agree on the working procedure before starting. While working, always keep conversations of the work between your fellow workers and your self on any step of the work. During the work, hang the warning tag of “UNDER WORKING” in the operator’s compartment.
• Only qualified workers must perform the work and operation which require license or qualification.
• Keep the tools in good condition. And learn the correct way to use the tools, and use the proper ones among them. Before starting the work, thoroughly check the tools, lift truck, service vehicle, etc.
• If welding repairs is required, always have a trained and experienced welder with good knowledge of welding perform the work. When performing welding work, always wear welding gloves, apron, shielding goggles, cap, etc.
• Before starting work, warm up your body thoroughly to start work under good condition.
• Avoid continuing work for long hours and take rests with proper intervals to keep your body in good condition. Take a rest in a specified safe place. Preparation

TABLE OF CONTENTS:

Komatsu HYDRAULIC EXCAVATOR PC138USLC-10 Shop Manual SEN06062-15 – PDF DOWNLOAD

Cover 1
00 Index and foreword 3
Index 4
Foreword, safety and general information 15
Important safety notice 15
How to read the shop manual 22
Explanation of terms for maintenance standard 24
Handling equipment of fuel system devices 26
Handling of intake system parts 27
Handling of hydraulic equipment 28
Method of disconnecting and connecting of push-pull type coupler 30
Handling of electrical equipment 33
How to read electric wire code 41
Precautions when performing operation 44
Practical use of KOMTRAX 49
Standard tightening torque table 50
List of abbreviation 56
Conversion table 61
01 Specification 67
Table of contents 68
Specifications 69
Specification drawing 69
Working range drawings 70
Specifications 71
Weight table 75
Table of fuel, coolant, and lubricants 77
10 Structure and function 79
Table of contents 80
Engine and cooling system 81
Engine related parts 81
PTO 83
Variable flow turbocharger 84
EGR system piping drawing 88
EGR system circuit diagram 90
EGR valve 91
EGR cooler 93
KCCV layout drawing 95
KCCV ventilator 97
KDOC muffler 99
Cooling system 101
Power train 103
Power train system 103
Swing circle 105
Swing machinery 106
Undercarriage and frame 108
Track frame 108
Idler cushion 109
Hydraulic system 110
Hydraulic component layout 110
Valve control 112
Hydraulic tank 113
CLSS 115
Main pump 119
Control valve 146
Swing motor 191
Travel motor 203
Work equipment and swing PPC valve 214
Travel PPC valve 221
Blade PPC valve 227
1st-line attachment PPC valve (with EPC valve) 229
Solenoid valve 237
Attachment circuit selector valve (for low pressure circuit) 243
Attachment circuit selector valve (for high pressure circuit) 246
Multi-control valve 248
Anti-drop valve for boom 249
Anti-drop valve for arm 253
Center swivel joint 257
PPC circuit accumulator 259
Attachment circuit accumulator (for low pressure circuit) 260
Attachment circuit accumulator (for high pressure circuit) 261
Work equipment 262
Work equipment 262
Work equipment shim 263
Bucket play adjustment shim 264
Cab and its attachments 265
Cab mount and cab tipping stopper 265
ROPS cab 266
Electrical system 268
Electrical control system 268
Machine monitor system 300
KOMTRAX system 321
Sensor 338
20 Standard value tables 351
Table of contents 352
Standard service value table 353
Standard value table for engine 353
Standard value table for machine 354
Standard value table for electrical system 367
30 Testing and adjusting 373
Table of contents 374
Related information on testing and adjusting 375
Tools for testing and adjusting 375
Sketch of tools for testing and adjusting 378
Engine and cooling system 380
Testing engine speed 380
Testing exhaust gas color 381
Testing and adjusting valve clearance 382
Testing compression pressure 384
Testing blowby pressure 387
Testing engine oil pressure 388
Visual check inside of EGR valve 389
Clean inside of EGR valve 390
Testing fuel pressure 393
Testing fuel return rate and leakage 394
Bleeding air from fuel system 397
Testing fuel circuit for leakage 399
Handling cylinder cutout mode operation 400
Handling no-injection cranking operation 401
Testing and adjusting air conditioner compressor belt tension 402
Check fan belt, replace 403
Check auto-tensioner, replace 405
Writing compensation values at replacement of injector and engine controller 408
Power train 412
Testing swing circle bearing clearance 412
Undercarriage and frame 413
Testing and adjusting track tension 413
Hydraulic system 414
Releasing remaining pressure from hydraulic circuit 414
Testing and adjusting oil pressure in work equipment, swing, and travel circuits 419
Testing oil pressure of control circuit 422
Testing and adjusting oil pressure in pump PC control circuit 423
Testing and adjusting oil pressure in pump LS control circuit 426
Testing outlet pressure of solenoid valve 431
Testing PPC valve output pressure 432
Adjusting play of work equipment and swing PPC valves 434
Isolating the parts causing hydraulic drift in work equipment 435
Testing and adjusting travel deviation 437
Testing oil leakage 439
Bleeding air from hydraulic circuit 441
Cab and its attachments 444
Testing cab tipping stopper 444
Testing, cleaning and lubricating slide door rail and roller 445
How to Examine and Adjust Slide Door 446
Adjusting mirrors 472
Electrical system 474
Special functions of machine monitor 474
Adjusting rearview camera angle 525
Handling voltage circuit of engine controller 527
Handling battery disconnect switch 528
Testing diodes 529
Pm clinic 530
Pm Clinic service 530
40 Troubleshooting 537
Table of contents 538
Related information on troubleshooting 544
Troubleshooting points 544
Sequence of events in troubleshooting 546
Checks before troubleshooting 548
Inspection procedure before troubleshooting 550
Preparation for troubleshooting of electrical system 567
Classification and procedure for troubleshooting 571
Symptom and troubleshooting numbers 574
Information in troubleshooting table 577
Troubleshooting method for open circuit in wiring harness of pressure sensor system 579
Connector/electrical wiring connection table 581
Layout of connector 618
Connector contact identification 624
T-branch box and T-branch adapter table 663
Fuse location table 668
Failure codes table 670
Troubleshooting by failure code (Display of code) 676
Failure code [879AKA] 676
Failure code [879AKB] 677
Failure code [879BKA] 678
Failure code [879BKB] 679
Failure code [879CKA] 680
Failure code [879CKB] 681
Failure code [879DKZ] 682
Failure code [879EMC] 683
Failure code [879FMC] 684
Failure code [879GKX] 685
Failure code [989L00] 686
Failure code [989M00] 687
Failure code [989N00] 688
Failure code [AB00KE] 689
Failure code [B@BAZG] 692
Failure code [B@BAZK] 693
Failure code [B@BCNS] 695
Failure code [B@HANS] 696
Failure code [CA115] 698
Failure code [CA122] 700
Failure code [CA123] 703
Failure code [CA131] 706
Failure code [CA132] 709
Failure code [CA144] 712
Failure code [CA145] 715
Failure code [CA153] 718
Failure code [CA154] 721
Failure code [CA187] 724
Failure code [CA221] 727
Failure code [CA222] 730
Failure code [CA227] 733
Failure code [CA234] 734
Failure code [CA238] 736
Failure code [CA239] 738
Failure code [CA271] 740
Failure code [CA272] 742
Failure code [CA322] 744
Failure code [CA324] 747
Failure code [CA331] 750
Failure code [CA332] 753
Failure code [CA343] 756
Failure code [CA351] 757
Failure code [CA352] 758
Failure code [CA356] 760
Failure code [CA357] 763
Failure code [CA386] 766
Failure code [CA435] 767
Failure code [CA441] 769
Failure code [CA442] 772
Failure code [CA449] 773
Failure code [CA451] 774
Failure code [CA452] 777
Failure code [CA466] 780
Failure code [CA515] 783
Failure code [CA516] 785
Failure code [CA553] 787
Failure code [CA555] 789
Failure code [CA556] 790
Failure code [CA559] 792
Failure code [CA689] 797
Failure code [CA691] 802
Failure code [CA692] 805
Failure code [CA697] 808
Failure code [CA698] 809
Failure code [CA731] 810
Failure code [CA778] 813
Failure code [CA1117] 819
Failure code [CA1695] 820
Failure code [CA1696] 821
Failure code [CA1843] 822
Failure code [CA1844] 825
Failure code [CA1896] 828
Failure code [CA1942] 833
Failure code [CA1961] 835
Failure code [CA2185] 836
Failure code [CA2186] 838
Failure code [CA2249] 840
Failure code [CA2272] 841
Failure code [CA2311] 845
Failure code [CA2349] 846
Failure code [CA2353] 848
Failure code [CA2357] 851
Failure code [CA2765] 853
Failure code [CA3419] 854
Failure code [CA3421] 856
Failure code [CA3724] 859
Failure code [CA3918] 861
Failure code [CA3919] 862
Failure code [CA3921] 863
Failure code [CA3922] 864
Failure code [CA3923] 866
Failure code [D110KB] 869
Failure code [D19JKZ] 871
Failure code [D811MC] 875
Failure code [D862KA] 876
Failure code [D8ALKA] 877
Failure code [D8ALKB] 879
Failure code [D8AQKR] 881
Failure code [DA20MC] 884
Failure code [DA22KK] 885
Failure code [DA25KP] 889
Failure code [DA29KQ] 892
Failure code [DA2LKA] 894
Failure code [DA2LKB] 897
Failure code [DA2QKR] 899
Failure code [DA2RKR] 903
Failure code [DAF0MB] 905
Failure code [DAF0MC] 906
Failure code [DAF8KB] 907
Failure code [DAF9KQ] 909
Failure code [DAFGMC] 910
Failure code [DAFLKA] 911
Failure code [DAFLKB] 913
Failure code [DAFQKR] 915
Failure code [DAZ9KQ] 916
Failure code [DAZQKR] 917
Failure code [DB2QKR] 923
Failure code [DB2RKR] 930
Failure code [DGH2KB] 936
Failure code [DHPAMA] 939
Failure code [DHSFMA] 943
Failure code [DHSGMA] 947
Failure code [DHSHMA] 951
Failure code [DHSJMA] 955
Failure code [DHSKMA] 959
Failure code [DHSLMA] 963
Failure code [DHX1MA] 967
Failure code [DR21KX] 968
Failure code [DR31KX] 971
Failure code [DV20KB] 972
Failure code [DW43KA] 974
Failure code [DW43KB] 977
Failure code [DW45KA] 980
Failure code [DW45KB] 984
Failure code [DW91KA] 988
Failure code [DW91KB] 991
Failure code [DWA2KA] 994
Failure code [DWA2KB] 997
Failure code [DWJ0KA]1000
Failure code [DWJ0KB]1003
Failure code [DXA8KA]1006
Failure code [DXA8KB]1010
Failure code [DXE4KA]1013
Failure code [DXE4KB]1016
Failure code [DY20KA]1018
Failure code [DY20MA]1021
Failure code [DY2CKB]1024
Failure code [DY2DKB]1027
Failure code [DY2EKB]1029
Troubleshooting of electrical system (E-mode)1031
E-1 Engine does not start (Engine does not crank)1031
E-2 Manual preheating system does not work1037
E-3 While preheating is working, preheating monitor does not light up1040
E-4 When starting switch is turned to ON position, machine monitor displays nothing1042
E-5 When starting switch is turned to ON position (with engine stopped), engine oil level monitor lights up in yellow1045
E-6 Engine coolant temperature monitor lights up in white while engine is running1046
E-7 Hydraulic oil temperature monitor lights up in white while engine is running1047
E-8 Charge level monitor lights up while engine is running1048
E-9 Fuel level monitor lights up in red while engine is running1049
E-10 Engine coolant temperature monitor lights up in red while engine is running1050
E-11 Hydraulic oil temperature monitor lights up in red while engine is running1051
E-12 Engine oil pressure monitor lights up in red while engine is running1052
E-13 Fuel gauge display does not move from minimum or maximum1053
E-14 Fuel gauge indicates incorrect amount (indicates neither full nor empty)1054
E-15 Engine coolant temperature gauge display does not move from minimum or maximum1055
E-16 Engine coolant temperature gauge indicates incorrect temperature (indicates neither minimum nor maximum)1056
E-17 Hydraulic oil temperature gauge does not move from minimum or maximum1057
E-18 Hydraulic oil temperature gauge indicates incorrect temperature (indicates neither minimum nor maximum)1059
E-19 Some areas of machine monitor screen are not displayed1060
E-20 Function switch does not work1061
E-21 Automatic warm-up system does not operate (in cold season)1062
E-22 Auto-deceleration monitor does not light up, or does not go out, while auto-deceleration switch is operated1063
E-23 Auto-deceleration function does not operate or is not canceled while lever is operated1064
E-24 Working mode selection screen is not displayed while working mode selector switch is operated1065
E-25 Setting of engine and hydraulic pump is not changed while working mode is changed1066
E-26 Travel speed monitor does not change while travel speed switch is operated1067
E-27 Travel speed does not change while travel speed selection is changed1068
E-28 Alarm buzzer does not stop sounding1069
E-29 Service meter is not displayed, while starting switch is in OFF position1070
E-30 Service mode cannot be selected1071
E-31 Any of work equipment, swing and travel does not work1072
E-32 Any of work equipment, swing and travel cannot be locked1074
E-33 Upper structure does not swing while swing parking brake cancel switch is set to CANCEL position1076
E-34 Swing brake does not operate while swing parking brake cancel switch is set to NORMAL position1078
E-35 Alarm does not sound during travel1080
E-36 Alarm does not stop sounding while machine is stopped1081
E-37 Horn does not sound1082
E-38 Horn does not stop sounding1083
E-39 Wiper monitor does not light up, or does not go out, while wiper switch is operated1084
E-40 Wiper does not operate while wiper switch is operated1085
E-41 Window washer does not operate while window washer switch is operated1087
E-42 Boom Lower is not displayed correctly with monitoring function1088
E-43 Arm OUT is not displayed correctly with monitoring function1090
E-44 Arm IN is not displayed correctly with monitoring function1092
E-45 Boom Raise is not displayed correctly with monitoring function1094
E-46 Bucket Curl is not displayed correctly with monitoring function1096
E-47 Bucket Dump is not displayed correctly with monitoring function1098
E-48 Swing is not displayed correctly with monitoring function1100
E-49 Travel is not displayed correctly with monitoring function1102
E-50 Service is not displayed correctly with monitoring function1103
E-51 Attachment hydraulic circuit cannot be changed1105
E-52 KOMTRAX system does not operate normally1106
Troubleshooting of hydraulic and mechanical system (H-mode) 1108
Information described in troubleshooting table (H-mode)1108
System chart of hydraulic and mechanical systems1109
Failure mode and cause table1111
H-1 All of work equipment, swing and travel operation lacks speed or power1119
H-2 Engine speed drops significantly or engine stalls1121
H-3 Any of work equipment, swing and travel does not work1122
H-4 Unusual sound is heard from around hydraulic pump1123
H-5 Fine control performance or response is poor1124
H-6 Boom speed or power is low1125
H-7 Arm speed or power is low1128
H-8 Bucket speed or power is low1130
H-9 Work equipment does not move in single operation1132
H-10 Hydraulic drift of boom is large1133
H-11 Hydraulic drift of arm is large1134
H-12 Hydraulic drift of bucket is large1135
H-13 Time lag of work equipment is large1136
H-14 In combined operation of work equipment, equipment having heavier load moves slower1138
H-15 In combined operation of swing and boom RAISE, boom rising speed is low1139
H-16 In combined operation of swing and travel, travel speed drops largely1140
H-17 Machine does not travel straight1141
H-18 Travel speed is slow1143
H-19 Machine is hard to steer or travel power is low1145
H-20 Travel speed does not change, or travel speed is too slow or fast1148
H-21 One of tracks does not run1149
H-22 Upper structure does not swing to the right or left1151
H-23 Upper structure swings only to the right or left1152
H-24 Swing acceleration or swing speed is low in both directions (right and left)1153
H-25 Swing acceleration performance is poor or swing speed is slow in only one direction1154
H-26 Upper structure overruns excessively when it stops swinging (both right and left)1155
H-27 Upper structure overruns excessively when it stops swinging (either right or left)1156
H-28 Shock is large when upper structure stops swinging1157
H-29 Large unusual noise is heard when upper structure stops swinging1158
H-30 Swing drift on a slope is large while swing parking brake is applied1159
H-31 Swing drift on a slope is large while swing parking brake is released1160
H-32 Attachment hydraulic circuit cannot be changed while attachment is installed1161
H-33 Oil flow in attachment circuit cannot be controlled1162
Troubleshooting of engine (S-mode)1163
Information mentioned in troubleshooting table (S mode)1163
S-1 Engine does not crank when starting switch is turned to START position1164
S-2 Engine cranks but no exhaust smoke comes out1165
S-3 Fuel is being injected but engine does not start (misfiring: engine cranks but does not start)1166
S-4 Engine startability is poor1167
S-5 Engine does not pick up smoothly1169
S-6 Engine stops during operation1171
S-7 Engine runs rough or is unstable1173
S-8 Engine lacks power1174
S-9 Exhaust smoke is black1176
S-10 Engine oil consumption is excessive1178
S-11 Oil becomes contaminated quickly1179
S-12 Fuel consumption is excessive1180
S-13 Oil is in coolant (or coolant spurts or coolant level goes down)1181
S-14 Oil pressure drops1182
S-15 Fuel mixes into engine oil1183
S-16 Water mixes into engine oil (milky)1184
S-17 Coolant temperature rises too high (overheating)1185
S-18 Unusual noise is heard1186
S-19 Vibration is excessive1187
S-20 Air cannot be bled from fuel circuit1188
50 Disassembly and assembly1189
Table of contents1190
Abbreviation List1194
Related information on disassembly and assembly1200
How to read this manual1200
Coating materials list1202
Special tools list1206
Sketches of special tools1217
Engine and cooling system1220
Removal and installation of supply pump assembly (When the counterweight assembly is not removed)1220
Removal of supply pump assembly1221
Installation of supply pump assembly1226
Removal and installation of supply pump assembly (When the countereightassembly is removed)1233
Removal of supply pump assembly1234
Installation of supply pump assembly1236
Removal and installation of injector assembly1241
Removal of injector assembly1242
Installation of injector assembly1249
Removal and installation of cylinder head assembly1260
Removal of cylinder head assembly1261
Installation of cylinder head assembly1276
Removal and installation of radiator assembly1296
Removal of radiator assembly1296
Installation of radiator assembly1299
Removal and installation of hydraulic oil cooler assembly1303
Removal of hydraulic oil cooler assembly1303
Installation of hydraulic oil cooler assembly1306
Removal and installation of aftercooler assembly1310
Removal of aftercooler assembly1310
Installation of aftercooler assembly1312
Removal and installation of engine and main pump assembly1314
Removal of engine and main pump assembly1315
Installation of engine and main pump assembly1327
Removal and installation of engine front oil seal1343
Removal of engine front oil seal1343
Installation of engine front oil seal1344
Removal and installation of engine rear oil seal1346
Removal of engine rear oil seal1346
Installation of engine rear oil seal1347
Removal and installation of fuel cooler assembly1351
Removal of fuel cooler assembly1351
Installation of fuel cooler assembly1353
Removal and installation of fuel tank assembly1355
Removal of fuel tank assembly1356
Installation of fuel tank assembly1363
Removal and installation of KDOC assembly1370
Removal of KDOC assembly1370
Installation of KDOC assembly1372
Removal and installation of KCCV assembly1376
Removal of KCCV assembly1376
Installation of KCCV assembly1378
Removal and installation of air cleaner assembly1380
Removal of air cleaner assembly1380
Installation of air cleaner assembly1382
Removal and installation of fan belt1386
Removal of fan belt1386
Installation of fan belt1388
Power train system1390
Removal and installation of travel motor and final drive assembly1390
Removal of travel motor and final drive assembly1391
Installation of travel motor and final drive assembly1393
Disassembly and assembly of travel motor and final drive assembly1397
Disassembly of travel motor and final drive assembly1408
Assembly of travel motor and final drive assembly1425
Removal and installation of swing motor and swing machinery assembly1442
Removal of swing motor and swing machinery assembly1443
Installation of swing motor and swing machinery assembly1446
Disassembly and assembly of swing machinery assembly1449
Disassembly of swing machinery assembly1450
Assembly of swing machinery assembly1453
Removal and installation of swing circle assembly1459
Removal of swing circle assembly1459
Installation of swing circle assembly1460
Undercarriage and frame1461
Separation and connection of track shoe assembly1461
Separation of track shoe assembly1462
Connection of track shoe assembly1464
Removal and installation of sprocket1467
Removal of sprocket1467
Installation of sprocket1468
Removal and installation of idler and idler cushion assembly1469
Removal of idler and idler cushion assembly1469
Installation of idler and idler cushion assembly1470
Disassembly and assembly of idler assembly1471
Disassembly of idler assembly1472
Assembly of idler assembly1473
Disassembly and assembly of idler cushion assembly1477
Disassembly of idler cushion assembly1477
Assembly of idler cushion assembly1479
Disassembly and assembly of track roller assembly1482
Disassembly of track roller assembly1482
Assembly of track roller assembly1484
Removal and installation of revolving frame assembly1487
Removal of revolving frame assembly1488
Installation of revolving frame assembly1490
Removal and installation of counterweight assembly (For machines with additional counterweight)1492
Removal of counterweight assembly (For machines with additional counterweight)1493
Installation of counterweight assembly (For machines with additional counterweight)1499
Hydraulic system1506
Removal and installation of center swivel joint assembly1506
Removal of center swivel joint assembly1507
Installation of center swivel joint assembly1510
Disassembly and assembly of center swivel joint assembly1515
Disassembly of center swivel joint assembly1516
Assembly of center swivel joint assembly1517
Removal and installation of hydraulic tank assembly1518
Removal of hydraulic tank assembly1519
Installation of hydraulic tank assembly1525
Removal and installation of main pump assembly1531
Removal of main pump assembly1532
Installation of main pump assembly1537
Removal and installation of main pump input shaft oil seal1543
Removal of main pump input shaft oil seal1543
Installation of main pump input shaft oil seal1544
Removal and installation of control valve assembly1545
Removal of control valve assembly1546
Installation of control valve assembly1557
Disassembly and assembly of control valve assembly1571
Assembly of control valve assembly1571
Disassembly and assembly of work equipment PPC valve assembly1575
Disassembly of work equipment PPC valve assembly1575
Assembly of work equipment PPC valve assembly1576
Disassembly and assembly of travel PPC valve assembly1578
Disassembly of travel PPC valve assembly1578
Assembly of travel PPC valve assembly1578
Work equipment1581
Removal and installation of work equipment assembly1581
Removal of work equipment assembly1582
Installation of work equipment assembly1587
Removal and installation of anti-drop valve for boom assembly1592
Removal of anti-drop valve for boom assembly1593
Installation of anti-drop valve for boom assembly1595
Removal and installation of anti-drop valve for arm (head side) assembly1597
Removal of anti-drop valve for arm (head side) assembly1598
Installation of anti-drop valve for arm (head side) assembly1600
Removal and installation of anti-drop valve for arm (bottom side) assembly1601
Removal of anti-drop valve for arm (bottom side) assembly1602
Installation of anti-drop valve for arm (bottom side) assembly1604
Disassembly and assembly of anti-drop valve assembly1605
Disassembly of anti-drop valve assembly1605
Assembly of anti-drop valve assembly1605
Disassembly and assembly of work equipment cylinder assembly1607
Disassembly of work equipment cylinder assembly1608
Assembly of work equipment cylinder assembly1610
Cab and its attachments1617
Removal and installation of operator’s cab assembly1617
Removal of operator’s cab assembly1617
Installation of operator’s cab assembly1621
Remove and Install Slide Door1626
How to Remove Slide Door1626
How to Install Slide Door1627
Removal and installation of operator’s cab glass (adhered glass) 0
Removal of operator’s cab glass (adhered glass)1631
Installation of operator’s cab glass (adhered glass)1632
Removal and installation of front window assembly1641
Removal of front window assembly1641
Installation of front window assembly1644
Removal and installation of floor frame assembly1645
Removal of floor frame assembly1646
Installation of floor frame assembly1656
Removal and installation of air conditioner unit assembly1668
Removal of air conditioner unit assembly1669
Installation of air conditioner unit assembly1675
Removal and installation of air conditioner compressor assembly1682
Removal of air conditioner compressor assembly1682
Installation of air conditioner compressor assembly1685
Removal and installation of air conditioner condenser assembly1688
Removal of air conditioner condenser assembly1688
Installation of air conditioner condenser assembly1690
Removal and installation of operator’s seat1692
Removal of operator’s seat1692
Installation of operator’s seat1693
Removal and installation of seat belt1694
Removal of seat belt1694
Installation of seat belt1695
Removal and installation of front wiper assembly1696
Removal of front wiper assembly1696
Installation of front wiper assembly1702
Removal and installation of work equipment control lever assembly1710
Removal of work equipment control lever assembly1710
Installation of work equipment control lever assembly1716
Electrical system1724
Removal and installation of engine controller assembly1724
Removal of engine controller assembly1724
Installation of engine controller assembly1725
Removal and installation of pump controller assembly1726
Removal of pump controller assembly1726
Installation of pump controller assembly1729
Removal and installation of machine monitor assembly1732
Removal of machine monitor assembly1732
Installation of machine monitor assembly1735
Removal and installation of mass air flow and temperature sensor1739
Removal of mass air flow and temperature sensor1739
Installation of mass air flow and temperature sensor1740
Removal and installation of KOMTRAX terminal assembly1742
Removal of KOMTRAX terminal assembly1742
Installation of KOMTRAX terminal assembly1743
60 Maintenance standard 1747
Table of contents 1748
Engine and cooling system 1749
Engine mount 1749
PTO 1750
Cooling system 1751
Power train 1752
Swing circle 1752
Swing machinery 1753
Sprocket 1754
Undercarriage and frame 1755
Track frame 1755
Idler cushion 1756
Idler 1757
Track roller 1758
Carrier roller 1759
Track shoe 1760
Hydraulic system 1765
Hydraulic tank 1765
Main pump 1766
Control valve 1769
Swing motor 1780
Travel motor 1783
Anti-drop valve for boom 1784
Anti-drop valve for arm 1786
Work equipment and swing PPC valve 1788
Travel PPC valve 1791
Blade PPC valve 1793
1st-line attachment PPC valve (with EPC valve) 1795
Solenoid valve 1798
Attachment circuit selector valve (for low pressure circuit) 1800
Attachment circuit selector valve (for high pressure circuit) 1801
Center swivel joint 1802
Cab and its attachments 1803
Cab mount and cab tipping stopper 1803
Work equipment 1804
Work equipment 1804
Boom cylinder 1813
Arm cylinder 1814
Bucket cylinder 1815
Blade cylinder 1816
80 Appendix 1817
Table of contents 1818
Air conditioner components 1819
Precautions for refrigerant 1819
Air conditioner component 1820
Configuration and function of refrigeration cycle 1823
Outline of refrigeration cycle 1824
Air conditioner unit 1826
Dual pressure switch 1831
Air conditioner controller 1832
Compressor 1833
Air conditioner condenser 1834
Sunlight sensor 1836
Outer temperature sensor (outside air temperature sensor) 1837
Procedure for testing and troubleshooting 1838
Circuit diagram and arrangement of connector pins 1840
System diagram 1842
Input and output signals of the air conditioner controller 1843
Air conditioner unit 1845
Parts and connectors layout 1847
Testing air leakage (duct) 1853
Testing with self-diagnosis function 1856
Testing vent (mode) changeover 1859
Testing FRESH/RECIRC air changeover 1860
Testing sunlight sensor 1861
Testing (dual) pressure switch for refrigerant 1862
Testing relays 1864
Troubleshooting chart 1 1865
Troubleshooting chart 2 1866
Information in troubleshooting table 1869
Failure code list related to air conditioner 1870
Failure code [879AKA] A/C Inner Sensor Open Circuit 1871
Failure code [879AKB] A/C Inner Sensor Short Circuit 1872
Failure code [879BKA] A/C Outer Sensor Open Circuit 1873
Failure code [879BKB] A/C Outer Sensor Short Circuit 1875
Failure code [879CKA] Ventilating Sensor Open Circuit 1877
Failure code [879CKB] Ventilating Sensor Short Circuit 1878
Failure code [879DKZ] Sunlight Sensor Open or Short Circuit 1879
Failure code [879EMC] Ventilation Damper Abnormality 1881
Failure code [879FMC] Air Mix Damper Abnormality 1882
Failure code [879GKX] Refrigerant Abnormality 1883
A-1 Troubleshooting for power supply system (Air conditioner does not operate) 1884
A-2 Troubleshooting for compressor and refrigerant system (Air is not cooled) 1886
A-3 Troubleshooting for blower motor system (No air comes out or air flow is abnormal) 1889
A-4 Troubleshooting for FRESH/RECIRC air changeover 1891
Troubleshooting with gauge pressure 1893
Connection of service tool 1896
Precautions for disconnecting and connecting refrigerant piping 1898
Handling of compressor oil 1900
Desiccant replacement 1902
90 Diagrams and drawings1905
Table of contents1906
Hydraulic circuit diagram1907
Symbols in hydraulic circuit diagram1907
Hydraulic circuit diagram1911
Electric circuit diagram1919
Symbols in electric circuit diagram1919
Electrical circuit diagram1923
Electrical circuit diagram of air conditioner unit1935
Wiring harness diagram1937
INDEX1961

IMAGES PREVIEW OF THE MANUAL:

S.M 27/12/24