Komatsu MOTOR GRADER GD755-5R Shop Manual SEN05668-08 – PDF DOWNLOAD

Description

Komatsu MOTOR GRADER GD755-5R Shop Manual SEN05668-08 – PDF DOWNLOAD

FILE DETAILS:

Komatsu MOTOR GRADER GD755-5R Shop Manual SEN05668-08 – PDF DOWNLOAD

Language : English
Pages :1422
Downloadable : Yes
File Type : PDF

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DESCRIPTION:

Komatsu MOTOR GRADER GD755-5R Shop Manual SEN05668-08 – PDF DOWNLOAD

SERIAL NUMBERS 10001 and up

General precautions 

Inappropriate handling creates 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 work.

TABLE OF CONTENTS:

Komatsu MOTOR GRADER GD755-5R Shop Manual SEN05668-08 – PDF DOWNLOAD

SERIAL NUMBERS 10001 and up

Cover 1
00 Index and Foreword 3
100 Index 3
Composition of shop manual 4
Table of contents 6
200 Foreword and general information 19
Safety notice 20
How to read the shop manual 25
Explanation of terms for maintenance standard 27
Handling of hydraulic equipment 29
Method of disconnecting and connecting push-pull type coupler 31
Handling of electrical equipment 34
How to read electric wire code 44
Precautions when performing operation 47
Standard tightening torque table 50
List of abbreviation 54
Conversion table 58
01 Specification 65
100 Specification and technical data 65
Specification drawing 66
Specifications 67
Weight table 72
Table of fuel, coolant and lubricants 73
10 Structure, function and maintenance standard 75
100 Engine and cooling system 75
Engine mount and transmission mount 77
Cooling system 78
Cooling fan pump 80
Cooling fan motor 96
Cooling fan relief valve 101
200 Power train 103
Power train system drawing 104
Power train piping drawing 105
Transmission control 106
Torque converter 107
Transmission 112
Transmission control valve 133
ECMV 136
Main relief and torque converter relief valve 147
Front axle 149
Final drive 153
Differential 156
Differential lock solenoid valve 158
Tandem drive 159
300 Steering system 163
Steering piping diagram 164
Priority valve 165
Accumulator charge valve 172
Steering valve 174
400 Brake system 183
Brake hydraulic piping diagram 184
Brake valve 185
Slack adjuster 189
Accumulator (for brake) 191
Wheel brake 192
Parking brake and bank control valve 193
Parking brake 195
500 Undercarriage and frame 197
Frame 198
Tire 199
601 Hydraulic system, Part 1 201
Hydraulic system 202
Hydraulic equipment layout drawing 205
Work equipment control 207
Hydraulic tank 209
Main pump 211
Double type pump 232
602 Hydraulic system, Part 2 235
Control valve 236
CLSS 242
Functions and operation by valve 245
Hydraulic cylinder 255
Swivel joint 257
Pilot check valve 258
Accumulator (for blade) 267
700 Work equipment 269
Circle and drawbar 270
Blade 272
Lifter 274
Circle rotation motor 276
Circle rotation gear 278
800 Cab and its attachments 281
Cab 282
900 Electrical system 285
Machine monitor 286
Automatic shift control system 289
Transmission controller 295
Engine controller 298
KOMTRAX system 301
Starting engine circuit 304
Stopping engine circuit 306
Preheating circuit 307
Sensor 308
20 Standard value table 319
100 Standard service value table 319
Standard value table for engine 320
Standard value table for machine 321
30 Testing and adjusting 329
101 Testing and adjusting, Part 1 329
Precautions before work 331
Tool for testing, adjusting and troubleshooting 332
Sketches of special tools 335
Measuring engine speed 336
Measuring boost pressure 338
Measuring exhaust gas temperature 340
Measuring exhaust gas color 342
Adjusting valve clearance 343
Measuring compression pressure 345
Measuring blowby pressure 346
Measuring engine oil pressure 348
Handling fuel system device 349
Releasing remaining pressure in fuel system 349
Measuring fuel pressure 350
Bleeding air from fuel circuit 351
Checking fuel circuit for leakage 352
Handling cylinder cutout mode operation 353
Handling no injection cranking operation 353
Handling voltage circuit of engine controller 354
Checking muffler body and muffler stack for looseness and damage 354
Checking muffler function 354
Check of installed condition of cylinder head and manifolds 354
Checking engine piping for damage and looseness 354
Testing fuel return rate and leakage 355
Testing and adjusting alternator belt tension 358
Testing and adjusting air conditioner compressor belt tension 359
Handling high voltage circuit of engine controller 360
102 Testing and adjusting, Part 2 363
Testing power train oil pressure 365
Adjusting transmission speed sensor 378
Retrieval of disabled machine due to transmission valve failure 382
Flushing procedure for torque converter and transmission circuit 385
Testing and adjusting toe-in 387
Adjusting bearing preload 388
Measuring and adjusting differential lockup oil pressure 389
Testing and adjusting steering oil pressure 391
Measuring oil leakage of steering cylinder 392
Bleeding air from steering circuit 392
Testing and adjusting brake oil pressure 393
Releasing remaining pressure from brake circuit 397
Bleeding air from brake circuit 398
Testing wheel brake disc wear 399
Testing and adjusting parking brake 400
Parking brake emergency releasing procedure 402
Charging brake accumulator with nitrogen gas 403
Testing and adjusting work equipment oil pressure 405
Adjusting pump PC valve 407
Testing and adjusting pump LS differential pressure 408
Testing lift arm lock cylinder circuit oil pressure 410
Testing hydraulic fan 411
Measuring oil leakage of work equipment cylinder 413
Bleeding air from work equipment circuit 416
Bleeding air from fan pump 417
Bleeding air from fan motor 417
Clearance adjustment of drawbar ball joint 418
Adjusting clearance of blade circle guide 418
Adjusting circle rotating gear 419
Charging blade accumulator gas 422
Procedure for testing diodes 423
103 Testing and adjusting, Part 3 425
Special functions of machine monitor (EMMS) 426
How to start KOMTRAX terminal operations 474
Lamp display of KOMTRAX terminal 479
Preparation work for troubleshooting of electrical system 482
Pm Clinic 484
40 Troubleshooting 495
100 Failure code table and fuse locations 495
Precautions before work 496
Failure codes table 497
Fuse locations 503
200 General Information on troubleshooting 507
Points to remember when troubleshooting 508
Sequence of events in troubleshooting 509
Checks before troubleshooting 510
Classification and procedures for troubleshooting 529
Symptom and troubleshooting numbers 530
Information in troubleshooting table 532
Procedure for troubleshooting wiring harness of pressure sensor system for open circuit 534
Connection table for connector pin numbers 536
T- branch box and T- branch adapter table 572
301 Troubleshooting by failure code, Part 1 577
Failure code [1500LO] TORQFLOW transmission: Double engangement 579
Failure code [15F0MW] Transmission Forward clutch: Slip 580
Failure code [15G0MW] Transmission Reverse clutch: Slip 582
Failure code [15H0MW] Transmission H clutch: Slip 584
Failure code [15J0MW] Transmission L clutch: Slip 586
Failure code [15K0MW] Transmission 1st clutch: Slip 588
Failure code [15L0MW] Transmission 2nd clutch: Slip 590
Failure code [15M0MW] Transmission 3rd clutch: Slip 592
Failure code [15N0MW] Transmission 4th clutch: Slip 594
Failure code [15SAL1] ECMV F clutch: Although command signal does not flow, fill signal is output 596
Failure code [15SAMA] ECMV F clutch: Malfunction 598
Failure code [15SBL1] ECMV R clutch: Although command signal does not flow, fill signal is output 600
Failure code [15SBMA] ECMV R clutch: Malfunction 602
Failure code [15SCL1] ECMV H clutch: Although command signal does not flow, fill signal is output 604
Failure code [15SCMA] ECMV H clutch: Malfunction 606
Failure code [15SDL1] ECMV L clutch: Although command signal does not flow, fill signal is output 608
Failure code [15SDMA] ECMV L clutch: Malfunction 610
Failure code [15SEL1] ECMV 1stclutch: Although command signal does not flow, fill signal is output 612
Failure code [15SEMA] ECMV 1st clutch: Malfunction 614
Failure code [15SFL1] ECMV 2nd clutch: Although command signal does not flow, fill signal is output 616
Failure code [15SFMA] ECMV 2nd clutch: Malfunction 618
Failure code [15SGL1] ECMV 3rd clutch: Although command signal does not flow, fill signal is output 620
Failure code [15SGMA] ECMV 3rd clutch: Malfunction 622
Failure code [15SHL1] ECMV 4th clutch: Although command signal does not flow, fill signal is output 624
Failure code [15SHMA] ECMV 4th clutch: Malfunction 626
Failure code [15SJMA] ECMV lockup clutch: Malfunction 628
Failure code [15U0NT] Inching clutch: Overheat 629
Failure code [2G42ZG] Front accumulator: Pressure drop 630
Failure code [2G43ZG] Rear accumulator: Pressure drop 631
Failure code [AB00KB] Alternator: Short circuit 632
Failure code [AB00L6] Alternator: Signal does not match engine running or stopped state 634
Failure code [AB00MA] Alternator: Malfunction 636
Failure code [B@BAZG] Engine: Oil pressure drop, engine speed derated 638
Failure code [B@BCNS] Eng Water: Overheat 640
Failure code [B@CENS] Torque Converter Oil: Overheat 641
Failure code [B@CKNS] Differential case oil temperature: Overheat 642
Failure code [B@HANS] HYD Oil Temp: Overheat 643
302 Troubleshooting by failure code, Part 2 645
Failure code [CA111] ECM Critical Internal Failure 648
Failure code [CA115] Eng Ne and Bkup Speed Sens Error 650
Failure code [CA122] Chg Air Press Sensor High Error 652
Failure code [CA123] Chg Air Press Sensor Low Error 654
Failure code [CA131] Throttle Sensor High Error 656
Failure code [CA132] Throttle Sensor Low Error 658
Failure code [CA135] Eng Oil Press Sensor High Error 660
Failure code [CA141] Eng Oil Press Sensor Low Error 662
Failure code [CA144] Coolant Temp Sens High Error 664
Failure code [CA145] Coolant Temp Sens Low Error 666
Failure code [CA153] Chg Air Temp Sensor High Error 668
Failure code [CA154] Chg Air Temp Sensor Low Error 670
Failure code [CA187] Sensor 2 Supply Volt Low Error 672
Failure code [CA221] Ambient Press Sens High Error 674
Failure code [CA222] Ambient Press Sens Low Error 676
Failure code [CA227] Sensor 2 Supply Volt High Error 678
Failure code [CA234] Eng Overspeed 679
Failure code [CA238] Ne Speed Sensor Supply Volt Error 680
Failure code [CA263] Fuel Temp Sensor High Error 682
Failure code [CA265] Fuel Temp Sensor Low Error 684
Failure code [CA271] IMV/PCV1 Short Error 686
Failure code [CA272] IMV/PCV1 Open Error 687
Failure code [CA273] PCV2 Short Error 688
Failure code [CA274] PCV2 Open Error 689
Failure code [CA322] Inj #1 (#1) Open/Short Error 690
Failure code [CA323] Inj #5 (#5) Open/Short Error 692
Failure code [CA324] Inj #3 (#3) Open/Short Error 694
Failure code [CA325] Inj #6 (#6) Open/Short Error 696
Failure code [CA331] Inj #2 (#2) Open/Short Error 698
Failure code [CA332] Inj #4 (#4) Open/Short Error 700
Failure code [CA342] Calibration Code Incompatibility 702
Failure code [CA351] Injectors Drive Circuit Error 703
Failure code [CA352] Sensor 1 Supply Volt Low Error 704
Failure code [CA386] Sensor 1 Supply Volt High Error 706
303 Troubleshooting by failure code, Part 3 709
Failure code [CA431] Idle Validation Sw Error 711
Failure code [CA432] Idle Validation Process Error 714
Failure code [CA441] Battery Voltage Low Error 718
Failure code [CA442] Battery Voltage High Error 720
Failure code [CA449] Rail Press Very High Error 721
Failure code [CA451] Rail Press Sensor High Error 722
Failure code [CA452] Rail Press Sensor Low Error 724
Failure code [CA553] Rail Press High Error 726
Failure code [CA554] Rail Press Sensor In Range Error 727
Failure code [CA559] Rail Press Low Error 728
Failure code [CA689] Eng Ne Speed Sensor Error 732
Failure code [CA731] Eng Bkup Speed Sens Phase Error 734
Failure code [CA757] All Continuous Data Lost Error 735
Failure code [CA778] Eng Bkup Speed Sensor Error 736
Failure code [CA1633] KOMNET Datalink Timeout Error 738
Failure code [CA2185] Throt Sensor Sup Volt High Error 740
Failure code [CA2186] Throt Sensor Sup Volt Low Error 742
Failure code [CA2249] Rail Press Very Low Error 744
Failure code [CA2555] Grid Htr Relay Open Circuit 746
Failure code [CA2556] Intake heater relay short circuit 748
304 Troubleshooting by failure code, Part 4 751
Failure code [D160KA] Backup lamp relay: Disconnection 754
Failure code [D160KB] Backup lamp relay: Short circuit 756
Failure code [D19KKZ] Differential lock relay: Open circuit, short circuit 758
Failure code [D5ZHL6] C terminal signal: Signal does not match engine running or stopped state 760
Failure code [DAFRKR] Transmission controller CAN communication: Communication error (machine monitor) 762
Failure code [DAQ0KK] Transmission controller: Low source voltage (input) 764
Failure code [DAQ0KT] Transmission controller: Abnormality in non-volatile memory 766
Failure code [DAQ2KK] Transmission controller load power supply line: Low source voltage (input) 768
Failure code [DAQ9KQ] Transmission controller model selection: Disagreement of model selection signals 770
Failure code [DAQRKR] Transmission controller CAN communication: Defective communication (Abnormality in objective component system) 772
Failure code [DAQRMA] Option setting for transmission controller: Malfunction 774
Failure code [DB2RKR] Engine controller CAN communication: Defective communication (Abnormality in objective component system) 776
Failure code [DD1PKB] RPM set switch power supply: Short circuit 778
Failure code [DD1QKB] RPM set mode switch: Short circuit 780
Failure code [DDB6L4] Transmission gear shift lever: Parking break signal error 782
Failure code [DDTHKA] Fill switch for H clutch: Open circuit 786
Failure code [DDTJKA] Fill switch for L clutch: Open circuit 788
Failure code [DDTKKA] Fill switch for 1st clutch: Open circuit 789
Failure code [DDTLKA] Fill switch for 2nd clutch: Open circuit 790
Failure code [DDTMKA] Fill switch for 3rd clutch: Open circuit 791
Failure code [DDTNKA] Fill switch for R clutch: Open circuit 792
Failure code [DDTPKA] Fill switch for 4th clutch: Open circuit 793
Failure code [DDTQKA] Fill switch for F clutch: Open circuit 794
Failure code [DF10L4] Gear shift lever: Gear speed and travel direction signals do not match 795
Failure code [DGF1KX] T/M oil temp sensor: Input signal out of range 800
Failure code [DGH2KB] Hyd Oil Sensor: Short circuit 802
Failure code [DGT1KX] T/C Oil Temp Sensor: Input signal out of range 804
Failure code [DJF1KA] Fuel Level Sensor: Disconnection 806
Failure code [DK70KX] Inching pedal angle sensor: Input signal out of range 808
Failure code [DKD0KX] Articulation angle sensor: Input signal out of range 810
305 Troubleshooting by failure code, Part 5 813
Failure code [DLF1KA] Transmission input shaft speed sensor: Open circuit 815
Failure code [DLF1LC] Transmission input shaft speed sensor: Speed signals disagree 816
Failure code [DLF2KA] Transmission intermediate shaft speed sensor: Open circuit 817
Failure code [DLF2LC] Transmission intermediate shaft speed sensor: Speed signals disagree 818
Failure code [DLF3KA] Transmission intermediate shaft speed sensor (2): Open circuit 819
Failure code [DLF3LC] Transmission intermediate shaft speed sensor (2): Speed signals disagree 820
Failure code [DLM3LC] Fan Speed Sensor: Short circuit 822
Failure code [DLT3KA] Transmission output shaft speed sensor: Open circuit 824
Failure code [DV00KB] Buzzer: Short circuit 825
Failure code [DW4BKA] Parking brake solenoid valve: Open circuit 826
Failure code [DW4BKB] Parking brake solenoid valve: Short circuit 828
Failure code [DX16KA] Fan pump EPC solenoid: Open circuit 830
Failure code [DX16KB] Fan pump EPC solenoid: Short circuit 831
Failure code [DX16KY] Fan pump EPC solenoid: Hot circuit 832
Failure code [DXH1KA] Lockup ECNV solenoid: Open circuit 833
Failure code [DXH1KB] Lockup ECMV solenoid: Short circuit 834
Failure code [DXH1KY] Lockup ECMV solenoid: Hot short 836
Failure code [DXH2KA] H clutch ECMV solenoid: Open circuit 837
Failure code [DXH2KB] H clutch ECMV solenoid: Short circuit 838
Failure code [DXH2KY] H clutch ECMV solenoid: Hot short 840
Failure code [DXH3KA] L clutch ECMV solenoid: Open circuit 841
Failure code [DXH3KB] L clutch ECMV solenoid: Short circuit 842
Failure code [DXH3KY] L clutch ECMV solenoid: Hot short 844
Failure code [DXH4KA] 1st clutch ECMV solenoid: Open circuit 845
Failure code [DXH4KB] 1st clutch ECMV solenoid: Short circuit 846
Failure code [DXH4KY] 1st clutch ECMV solenoid: Hot short 847
Failure code [DXH5KA] 2nd clutch ECMV solenoid: Open circuit 848
Failure code [DXH5KB] 2nd clutch ECMV solenoid: Short circuit 850
Failure code [DXH5KY] 2ndclutch ECMV solenoid: Hot short 852
Failure code [DXH6KA] 3rd clutch ECMV solenoid: Open circuit 853
Failure code [DXH6KB] 3rd clutch ECMV solenoid: Short circuit 854
Failure code [DXH6KY] 3rd clutch ECMV solenoid: Hot short 856
Failure code [DXH7KA] R clutch ECMV solenoid: Open circuit 857
Failure code [DXH7KB] R clutch ECMV solenoid: Short circuit 858
Failure code [DXH7KY] R clutch ECMV solenoid: Hot short 859
Failure code [DXH8KA] F clutch ECMV solenoid: Open circuit 860
Failure code [DXH8KB] F clutch ECMV solenoid: Short circuit 861
Failure code [DXH8KY] F clutch ECMV solenoid: Hot short 862
Failure code [DXHHKA] 4th clutch ECMV solenoid: Open circuit 863
Failure code [DXHHKB] 4th clutch ECMV solenoid: Short circuit 864
Failure code [DXHHKY] 4th clutch ECMV solenoid: Hot short 865
400 Troubleshooting of electrical system (E-mode) 867
Before carrying out troubleshooting of electrical system (E-mode) 869
Information in troubleshooting table 872
E-1 Engine does not start or engine is hard to start 875
E-2 Preheater does not operate 878
E-3 Transmission mode does not switch 884
E-4 Creep mode function does not work or is not reset 886
E-5 Differential lock function does not work or is not reset 889
E-6 Performance of wheel brake is poor 892
E-7 Parking brake cannot be applied or cannot be released 894
E-8 Lift arm lock pin does not lock lift arm, or does not unlock it 897
E-9 Blade accumulator function does not work or is not reset 900
E-10 When starting switch is turned to ON position, machine monitor does not operate normally 904
E-11 When starting switch is turned to ON position, display of machine monitor does not display standard screen 906
E-12 When starting switch is turned to ON position, caution lamps lights up 907
E-13 Emergency stop lamp lights up while engine is running 908
E-14 Speedometer or engine tachometer does not indicate correctly 913
E-15 Coolant temperature gauge indication is not correct 914
E-16 Articulation gauge does not display normally 916
E-17 Torque converter oil temperature gauge does not display normally 919
E-18 Fuel gauge does not display normally 920
E-19 Character display is not normal 922
E-20 Centralized warning lamp does not light up or does not go off 923
E-21 Alarm buzzer does not sound or does not stop sounding 924
E-22 Machine monitor mode selector switch does not function 926
E-23 Headlamp, clearance lamp, and tail lamp do not light up or go off 929
E-24 Front working lamp does not light up or does not go off 935
E-25 Working lamp does not light up or does not go off 938
E-26 Turn signal lamp and hazard lamp do not flash or go off 943
E-27 Brake lamp does not light up or go off 948
E-28 Backup lamp does not light up or does not go off 950
E-29 Back-up alarm does not sound or does not stop 953
E-30 Wipers do not operate 956
E-31 Windshield washer does not operate 963
E-32 Horn does not sound or does not stop sounding 966
E-33 KOMTRAX system does not operate normally 968
500 Troubleshooting of hydraulic and mechanical system (H-mode) 971
How to read troubleshooting matrix 973
Failure mode and cause table 975
H-1 Engine speed lowers significantly or engine stalls 978
H-2 Machine does not start 979
H-3 Gear is not shifted 980
H-4 Travel lacks speed or power 981
H-5 Torque converter lockup does not work or is not released 986
H-6 Too much time lag at starting of travel or changing gear shift 987
H-7 Torque converter oil temperature is high 992
H-8 Differential lock-up function does not operate or can not be released 997
H-9 Steering speed or power is insufficient 998
H-10 Steering wheel does not move 999
H-11 Wheel brake does not work at all or sufficiently1000
H-12 Wheel brake cannot be released or drags1001
H-13 Parking brake does not work at all or insufficiently1002
H-14 Parking brake (including emergency release system) cannot be released or drags1003
H-15 All work equipment operation lacks speed or power1004
H-16 Work equipment does not work at all1005
H-17 Unusual noise comes out from around hydraulic pump1006
H-18 Blade lift operation lacks speed or power1007
H-19 Hydraulic drift of lifted blade is large1008
H-20 Drawbar side shift operation lacks speed or power1009
H-21 Blade side shift operation lacks speed or power1010
H-22 Power tilt operation lacks speed or power1011
H-23 Articulate operation lacks speed or power1012
H-24 Leaning operation lacks speed or power1013
H-25 Hydraulic drift of leaning cylinders (leaning) is large1014
H-26 Blade does not rotate1015
H-27 Lift arm lock pin does not lock lift arm, or does not unlock it1016
H-28 Blade accumulator function does not work or is not reset1017
H-29 Fan revolution is abnormal (Fan sound/vibration is abnormally large or engine overheats)1018
600 Troubleshooting of engine (S-mode)1021
Method of using troubleshooting chart1022
S-1 Startability is poor1026
S-2 Engine does not start1027
S-3 Engine does not pick up smoothly1030
S-4 Engine stops during operation1031
S-5 Engine does not run smoothly1032
S-6 Engine lacks power1033
S-7 Exhaust smoke is black (incomplete combustion)1035
S-8 Oil consumption is excessive (or exhaust smoke is blue)1036
S-9 Oil becomes contaminated early1037
S-10 Fuel consumption is excessive1038
S-11 Oil is in coolant (or coolant spurts or coolant level goes down)1039
S-12 Oil pressure drops1040
S-13 Oil level rises (coolant or fuel in oil)1041
S-14 Coolant temperature rises too high (overheating)1042
S-15 Unusual noise is made1043
S-16 Vibration is excessive1044
50 Disassembly and assembly1047
100 General information on disassembly and assembly1047
Precautions before work1048
How to read this manual1049
Coating materials list1051
Special tools list1054
Sketches of special tools1057
200 Engine and cooling system1065
Removal and installation of fuel supply pump assembly1066
Removal and installation of fuel injector assembly1072
Removal and installation of cylinder head assembly1079
Removal and installation of engine front oil seal1092
Removal and installation of engine rear oil seal1096
Removal and installation of cooling system assembly1103
Removal and installation of radiator assembly1107
Removal and installation of power train oil cooler assembly1110
Removal and installation of aftercooler assembly1113
Removal and installation of cooling fan oil cooler assembly1115
Removal and installation of air conditioner condenser assembly1116
Removal and installation of cooling fan and fan motor assembly1118
Removal and installation of engine, torque converter, and transmission assembly1122
Disconnection and connection of engine, torque converter, and transmission assembly1130
Removal and installation of engine hood assembly1132
Removal and installation of fuel tank assembly1136
300 Power train1141
Disassembly and assembly of torque converter and transmission assembly1142
Disassembly and assembly of transmission clutch assembly1159
Disassembly and assembly of torque converter assembly1187
Removal and installation of tandem drive and final drive assembly1198
Disassembly and assembly of tandem drive assembly1201
Disassembly and assembly of final drive assembly1206
400 Brake system1227
Disassembly and assembly of wheel brake assembly1228
500 Undercarriage and frame1237
Removal and installation of center hinge pin1238
600 Hydraulic system1249
Removal and installation of hydraulic tank assembly1250
Disassembly and assembly of hydraulic cylinder assembly1255
700 Work equipment1261
Removal and installation of blade assembly1262
Removal and installation of ripper assembly1263
Removal and installation of circle rotation gear assembly1264
Disassembly and assembly of circle rotation gear assembly1267
Removal and installation of circle drawbar assembly1274
800 Cab and its attachments1277
Removal and installation of operator’s cab assembly1278
Removal and installation of operator’s cab glass (adhered glass)1285
Removal and installation of floor frame assembly1293
Removal and installation of air conditioner unit assembly1300
900 Electric system1305
Removal and installation of machine monitor assembly1306
Removal and installation of engine controller assembly1307
Removal and installation of transmission controller assembly1309
Removal and installation of KOMTRAX terminal assembly1310
80 Air conditioner1313
100 Air conditioner1313
Precautions before work1315
Precautions for refrigerant1316
Air Conditioner Components1318
Structure and Function of Refrigeration System1321
Overview of Refrigeration System1322
Circuit diagram of refrigerant1324
Air Conditioner Unit1326
Compressor1329
Condenser1330
Receiver1331
Air conditioner control panel1332
Procedure for check and troubleshooting1334
Circuit diagram and layout of connector pins1336
System diagram1338
Detail of air conditioner unit1340
Parts and connectors layout1342
Testing air leakage (ducts)1344
Check with self-diagnosis (control panel display)1345
Testing temperature control1346
Testing FRESH/RECIRC air changeover1347
Testing evaporator temperature sensor1348
Testing relays1349
Testing blower amp1350
Troubleshooting Chart 11352
Troubleshooting Chart 21354
Information in troubleshooting table1356
Troubleshooting for power supply system (Air conditioner does not operate)1357
Troubleshooting of compressor and refrigerant system (Air is not cooled)1359
Troubleshooting for blower motor system (Air does not come out or air flow is improper)1362
Troubleshooting for temperature control1364
Troubleshooting for FRESH/RECIRC air changeover1366
Troubleshooting with gauge pressure1368
Connection of service tool1370
Precautions for disconnecting and connecting air conditioner piping1372
Handling compressor oil1374
90 Diagrams and drawings1377
100 Hydraulic diagrams and drawings1377
Power train hydraulic circuit diagram1379
Hydraulic circuit diagram of differential lock1381
Hydraulic circuit diagram1383
200 Electrical diagrams and drawings1387
Electrical circuit diagram1389
Connector list and stereogram1407

S.M 29/12/24