Komatsu WA600-1L Wheel Loader Shop Manual CEBMW26010 – PDF DOWNLOAD

Description

Komatsu WA600-1L Wheel Loader Shop Manual CEBMW26010 – PDF DOWNLOAD

FILE DETAILS:

Komatsu WA600-1L Wheel Loader Shop Manual CEBMW26010 – PDF DOWNLOAD

Language : English
Pages : 1023
Downloadable : Yes
File Type : PDF

IMAGES PREVIEW OF THE MANUAL:

TABLE OF CONTENTS:

Komatsu WA600-1L Wheel Loader Shop Manual CEBMW26010 – PDF DOWNLOAD

• MACHINE MODEL          SERIAL NUMBERS
• WA600-1 L                         A10391 and up

MAIN MENU 0
CONTENTS 5
10 ENGINE 19
12 TESTING AND ADJUSTING 19
STANDARD VALUE TABLE 20
TOOL LIST 21
VALVE CLEARANCE 22
COMPRESSION PRESSURE 24
FUEL INJECTION 25
TESTING TIMING 25
ADJUSTING TIMING BY DELIVERY CHECK 26
BLOW-BY PRESSURE 27
ALTERNATOR FAN BELT 28
EXHAUST GAS COLOR 29
ENGINE OIL PRESSURE 31
ENGINE OIL TEMPERATURE 32
ENGINE STOP MOTOR CABLE 33
ACCELERATOR PEDAL 34
OPERATING FORCE 34
ENGINE 35
13 DISASSEMBLY AND ASSEMBLY 37
STARTING MOTOR 39
UPPER ASSEMBLY 39
REMOVAL 39
INSTALLATION 39
LOWER ASSEMBLY 39
REMOVAL 39
INSTALLATION 39
ALTERNATOR 40
REMOVAL 40
INSTALLATION 40
OIL COOLER 41
REMOVAL 41
INSTALLATION 41
FUEL INJECTION PUMP 42
REMOVAL 42
INSTALLATION 42
WATER PUMP 43
REMOVAL 43
INSTALLATION 43
NOZZLE HOLDER 44
REMOVAL 44
INSTALLATION 44
TURBOCHARGER 45
REMOVAL 45
INSTALLATION 45
AIR COMPRESSOR 46
REMOVAL 46
INSTALLATION 46
CYLINDER HEAD 47
REMOVAL 47
INSTALLATION 53
RADIATOR 59
REMOVAL 59
INSTALLATION 62
ENGINE 65
REMOVAL 65
INSTALLATION 72
FUEL TANK 80
REMOVAL 80
INSTALLATION 82
14 MAINTENANCE STANDARD 85
ENGINE MOUNT 86
20 POWER TRAIN 87
21 STRUCTURE AND FUNCTION 87
GENERAL 89
POWER TRAIN 90
HYDRAULIC CIRCUIT FOR POWER TRAIN 92
HYDRAULIC CIRCUIT DIAGRAM FOR POWER TRAIN 93
TORQUE CONVERTER AND TRANSMISSION PIPING 94
TORQUE CONVERTER OIL COOLER 95
TORQUE CONVERTER 96
TORQUE CONVERTER RELIEF VALVE 99
TORQUE CONVERTER REGULATOR VALVE 100
TORQUE CONVERTER OIL FILTER 102
LUBRICATION BY-PASS VALVE 103
TRANSMISSION MOUNT 104
TRANSMISSION 105
TRANSMISSION foldout # 1 106
FORWARD 1st 108
Power pass 108
Hydraulic circuit schematics 110
TRANSMISSION CONTROL VALVE 112
UPPER VALVE 113
LOWER VALVE 114
MAIN RELIEF VALVE 115
PRIORITY VALVE 116
MODULATING VALVE AND QUICK RETURN VALVE 117
REDUCING VALVE 120
ACCUMULATOR VALVE 121
PILOT REDUCING VALVE 123
TRANSMISSION SOLENOID VALVE 124
EMERGENCY MANUAL SPOOL 126
TRANSMISSION PILOT OIL FILTER 127
TRANSFER 128
DRIVE SHAFT 129
CENTER SUPPORT 130
AXLE MOUNT 132
AXLES 134
FRONT 134
REAR 135
DIFFERENTIAL 136
FRONT 136
REAR 137
TORQUE PROPORTIONING DIFFERENTIAL 139
FINAL DRIVE 140
TIRE AND WHEEL 141
22 TESTING AND ADJUSTING 143
STANDARD VALUE TABLE 144
TOOL LIST 145
ENGINE STALL SPEED 146
1 Measuring torque converter stall 146
2 Measuring hydraulic stall engine and run at high 147
3 Measuring full stall 147
TORQUE CONVERTER AND TRANSMISSION 148
SHIFT LEVER 150
EMERGENCY MANUAL SPOOL 152
TIRE AND WHEEL 154
TROUBLESHOOTING 155
PRECAUTIONS WHEN TROUBLESHOOTING 156
METHOD OF READING TROUBLESHOOTING TABLES 158
PREVENTING RECURRENCE OF TROUBLE 160
JUDGEMENT ON POWER TRAIN 161
TROUBLESHOOTING TABLE 164
Machine does not move 164
Machine lacks power or speed 166
Excessive time lag when starting machine or shifting gear 167
Torque converter oil temperature too high 168
23 DISASSEMBLY AND ASSEMBLY 169
HYDRAULIC PUMP 171
Transmission lubricating + Torque converter charging + Switch pump 171
REMOVAL 171
INSTALLATION 173
TORQUE CONVERTER 175
REMOVAL 175
INSTALLATION 179
DISASSEMBLY 184
ASSEMBLY 190
TRANSMISSION 196
REMOVAL 196
INSTALLATION 202
DISASSEMBLY 209
ASSEMBLY 224
TRANSFER ASSEMBLY 240
DISASSEMBLY 240
ASSEMBLY 249
TRANSMISSION CONTROL VALVE 260
REMOVAL 260
INSTALLATION 261
DISASSEMBLY AND ASSEMBLY OF SPEED VALVE ASSEMBLY 262
DISASSEMBLY OF SPEED VALVE ASSEMBLY 263
ASSEMBLY OF SPEED VALVE ASSEMBLY 263
DISASSEMBLY AND ASSEMBLY OF MODULATING VALVE ASSEMBLY 264
DISASSEMBLY OF MODULATING VALVE ASSEMBLY 265
ASSEMBLY OF MODULATING VALVE ASSEMBLY 265
DISASSEMBLY OF MAIN RELIEF VALVE ASSEMBLY 265
ASSEMBLY OF MAIN RELIEF VALVE ASSEMBLY 265
FRONT DIFFERENTIAL 266
REMOVAL 266
INSTALLATION 268
REAR DIFFERENTIAL 271
REMOVAL 271
INSTALLATION 274
DIFFERENTIAL GEAR ASSEMBLY 278
DISASSEMBLY 278
FINE DISASSEMBLY OF PINION ASSEMBLY 280
FINE DISASSEMBLY OF DIFFERENTIAL GEAR CASE ASSEMBLY 281
ASSEMBLY 282
FINE ASSEMBLY OF DIFFERENTIAL GEAR CASE ASSEMBLY 282
FINE ASSEMBLY OF PINION ASSEMBLY 283
ASSEMBLY OF DIFFERENTIAL ASSEMBLY 284
FRONT AXLE 289
REMOVAL 289
INSTALLATION 291
REAR AXLE 293
REMOVAL 293
INSTALLATION 297
CENTER SUPPORT 301
REMOVAL 301
INSTALLATION 302
DISASSEMBLY 304
ASSEMBLY 306
DRIVE SHAFT 309
DISASSEMBLY 309
ASSEMBLY 311
FINAL DRIVE ASSEMBLY 313
DISASSEMBLY 313
ASSEMBLY 316
24 MAINTENANCE STANDARD 319
TRANSMISSION MOUNT 320
TORQUE CONVERTER 321
TORQUE CONVERTER REGULATOR VALVE 322
TRANSMISSION 324
TRANSMISSION SOLENOID VALVE 327
TRANSMISSION CONTROL VALVE 328
UPPER VALVE 328
LOWER VALVE 330
TRANSFER 332
DRIVE SHAFT 334
CENTER SUPPORT 336
AXLE MOUNT 338
DIFFERENTIAL 340
FINAL DRIVE 344
40 STEERING SYSTEM 347
41 STRUCTURE AND FUNCTION 347
GENERAL 348
STEERING COLUMN, GEAR BOX, AND LINKAGE 350
HYDRAULIC CIRCUIT FOR STEERING 352
HYDRAULIC CIRCUIT SCHEMATIC 352
HYDRAULIC CIRCUIT DIAGRAM 353
STEERING CONTROL SYSTEM 354
STEERING VALVE 354
STEERING RELIEF VALVE 356
SAFETY VALVE (WITH SUCTION VALVE) 357
OPERATION OF DEMAND SPOOL 359
OPERATION OF THE STEERING VALVE 362
TWO-WAY RESTRICTOR VALVE 363
STEERING CYLINDER 364
CENTER HlNGE PIN 365
GROUND DRIVEN STEERING (IF EQUIPPED) 366
GROUND DRIVEN STEERING PIPING 366
GROUND DRIVEN STEERING PUMP 367
DIVERTER VALVE 368
OPERATION 369
42 TESTING AND ADJUSTING 371
STANDARD VALUE TABLE 372
TOOL LIST 372
STEERING WHEEL 373
PLAY 373
OPERATING FORCE 374
OPERATING TIME 375
STEERING OIL PRESSURE 376
STEERING LINKAGE 378
TROUBLESHOOTING TABLES 381
1 Steering wheel does not turn 382
2 Steering wheel is sluggish 383
3 Steering wheel moves unsteadily or is subject to large shock 384
4 Machine tends to turn naturally in one particular direction while traveling 384
5 Left and right turning radii are different 384
43 DISASSEMBLY AND ASSEMBLY 385
STEERING GEAR 387
REMOVAL 387
INSTALLATION 389
STEERING GEAR BOX 390
DISASSEMBLY 390
ASSEMBLY 391
STEERING VALVE 393
REMOVAL 393
INSTALLATION 395
DISASSEMBLY AND ASSEMBLY 398
STEERING CYLINDER 400
REMOVAL 400
INSTALLATION 402
DISASSEMBLY 404
ASSEMBLY 406
CENTER HINGE PIN 409
REMOVAL 409
INSTALLATION 418
44 MAINTENANCE STANDARD 429
STEERING COLUMN AND GEAR BOX 430
STEERING VALVE 432
STEERING CYLINDER MOUNT 433
STEERING CYLINDER 434
CENTER HINGE PIN 436
GROUND DRIVEN STEERING PUMP 439
DIVERTER VALVE 440
50 BRAKE AND AIR SYSTEM 441
51 STRUCTURE AND FUNCTION 441
GENERAL 442
AIR SYSTEM 442
BRAKE CIRCUIT 442
BRAKE AND AIR PIPING 443
AIR CIRCUIT SYSTEM 444
AIR GOVERNOR 445
AIR TANK 447
WET TANK 447
DRY TANK 447
SAFETY VALVE 447
BRAKE VALVE 448
BRAKE ACTUATED 449
OPERATING IN BALANCE 450
BRAKE RELEASED 451
TWO-WAY VALVE 452
RELAY VALVE 453
BRAKE CHAMBER 454
SLACK ADJUSTER 456
BRAKE 459
PARKING BRAKE 461
BRAKE CALIPER 463
PARKING BRAKE SOLENOID VALVE 464
SPRING CYLINDER 465
HYDRAULIC TANK PRESSURIZING VALVE 466
52 TESTING AND ADJUSTING 467
STANDARD VALUE TABLE 469
TOOL LIST 470
MEASURING BRAKE PEDAL 471
MEASURING AIR PRESSURE 472
BRAKE PERFORMANCE 474
CHECKING BRAKE OIL PRESSURE 475
MEASURING WEAR OF BRAKE DISC 476
AIR BLEEDING FROM BRAKE LINE 477
PARKING BRAKE PERFORMANCE 478
CHECKING AND ADJUSTING PARKING BRAKE 479
TROUBLESHOOTING 481
TROUBLESHOOTING TABLE 482
1 Air pressure does not rise at all 482
2 Air pressure does not rise to the specified range 483
3 Brake is ineffective or not very effective 484
4 Brake does not release, or drags 485
5 Parking brake does not release, or drags 486
53 DISASSEMBLY AND ASSEMBLY 487
BRAKE VALVE 489
REMOVAL 489
INSTALLATION 491
DISASSEMBLY 493
ASSEMBLY 495
BRAKE CHAMBER 497
REMOVAL 497
INSTALLATION 500
DISASSEMBLY 503
ASSEMBLY 506
SLACK ADJUSTER 509
REMOVAL 509
INSTALLATION 509
DISASSEMBLY 510
ASSEMBLY 511
BRAKE ASSEMBLY 512
REMOVAL 512
INSTALLATION 515
DISASSEMBLY 518
ASSEMBLY 521
SPRING CYLINDER 524
REMOVAL 524
INSTALLATION 525
DISASSEMBLY 526
ASSEMBLY 527
PARKING BRAKE 528
REMOVAL 528
INSTALLATION 531
PARKING BRAKE PAD 534
REMOVAL 534
INSTALLATION 534
54 MAINTENANCE STANDARD 535
BRAKE VALVE 536
BRAKE CHAMBER 538
SLACK ADJUSTER 539
BRAKE 540
PARKING BRAKE 542
SPRING CYLINDER 544
60 WORK EQUIPMENT SYSTEM 547
61 STRUCTURE AND FUNCTION 547
GENERAL 550
HYDRAULIC PIPING 551
HYDRAULIC CIRCUIT 552
SCHEMATICS 552
DIAGRAM 554
HYDRAULIC TANK 556
OIL FILTER BYPASS VALVE 558
BREATHER 559
HYDRAULIC PUMPS 560
HYDRAULIC PUMP + STEERING PUMP + PPC PUMP 560
TRANSMISSION LUBRICATION + TORQUE CONVERTER CHARGING + SWITCH PUMP 561
PROPORTIONAL PRESSURE CONTROL VALVE (PPC VALVE) 562
FUNCTION OF PPC VALVE 564
PPC RELIEF VALVE 566
MAIN CONTROL VALVE 567
RELIEF VALVE 570
SAFETY VALVE 571
SUCTION VALVE 572
FLOAT SELECTOR VALVE AND UNLOADER VALVE 573
ACCUMULATOR 577
HYDRAULIC CIRCUIT OPERATION 578
LIFT AND DUMP SPOOLS AT “HOLD” 578
LIFT SPOOL AT “RAISE” 580
LIFT SPOOL AT “FLOAT’ 582
DUMP SPOOL AT “TILT BACK” 584
HYDRAULIC CYLINDER 586
LIFT CYLINDER 586
DUMP CYLINDER 587
BUCKET LINKAGE 588
BUCKET POSITIONER AND BOOM KICK-OUT 590
WORK EQUIPMENT LEVER LINKAGE 592
62 TESTING AND ADJUSTING 593
STANDARD VALUE TABLE 595
TOOL LIST 596
DUMP AND LIFT CONTROL LEVERS 597
MEASURING 597
ADJUSTING 598
HYDRAULIC CIRCUIT FLUSHING 600
PPC RELIEF VALVE 603
MEASURING PRESSURE 603
ADJUSTING 605
WORK EQUIPMENT 606
RELIEF VALVE 606
MEASURING TIME 608
HYDRAULIC DRIFT 609
BUCKET POSITIONER 610
BOOM KICK-OUT 611
TROUBLESHOOTING 613
TROUBLESHOOTING TABLE 614
1 Lift arm does not rise 614
2 Lift arm moves slowly or does not have sufficient lifting power 615
3 Lift arm movement becomes slow after it reaches a certain height 616
4 Bucket cannot be held down with lift arm cylinder 616
5 Lift arm has large hydraulic drift 616
6 Lift arm movement is unsteady during work 616
7 Lift arm descends momentarily when control lever is shifted from “Hold” to “Raise” 616
8 Bucket does not tilt back 617
9 Bucket moves slowly or has insufficient tilt back power 618
10 Bucket movement becomes slow during tilt back 619
11 Bucket cannot be held down by the bucket cylinder 619
12 Bucket has large hydraulic drift 619
13 Bucket moves unsteadily when machine travels under load 619
14 Bucket dumps momentarily when control lever is shifted from “Hold” to “Tilt back” 619
15 Control levers of lift arm and dump move stiffly and sluggishly 620
63 DISASSEMBLY AND ASSEMBLY 621
HYDRAULIC TANK 623
REMOVAL 623
INSTALLATION 625
HYDRAULIC FILTER 627
REMOVAL 627
INSTALLATION 628
HYDRAULIC PUMP 629
WORK EQUIPMENT, STEERING, PPC PUMP 629
REMOVAL 629
INSTALLATION 631
PPC VALVE ASSEMBLY 633
REMOVAL 633
INSTALLATION 635
DISASSEMBLY 637
ASSEMBLY 637
MAIN CONTROL VALVE 638
REMOVAL 638
INSTALLATION 641
DISASSEMBLY 644
ASSEMBLY 646
DUMP CYLINDER 648
REMOVAL 648
INSTALLATION 651
LIFT CYLINDER 653
REMOVAL 653
INSTALLATION 656
LIFT AND DUMP CYLINDERS 659
DISASSEMBLY 659
ASSEMBLY 661
WORK EQUIPMENT 663
REMOVAL 663
INSTALLATION 669
COUNTERWEIGHT 675
REMOVAL 675
INSTALLATION 677
64 MAINTENANCE STANDARD 679
MAIN CONTROL VALVE 680
HYDRAULIC PUMP 682
SAR250 (HYDRAULIC) + SAR125 (STEERING) + SAR20 (PPC) PUMP 682
SAR125 (TRANSMISSION LUBRICATION) + SARlOO (TORQUE CONVERTER CHARGING) + SARI00 (SWITCH PUMP) 684
PPC VALVE 686
DUMP CYLINDER 688
LIFT CYLINDER 690
BUCKET LINKAGE 692
BUCKET POSITIONER AND BOOM KICK-OUT 694
BUCKET 695
80 ELECTRIC AND ELECTRONIC SYSTEM 697
81 STRUCTURE AND FUNCTION 697
ELECTRICAL WIRING DIAGRAM 699
ENGINE STARTING CIRCUIT 701
ENGINE STOP CIRCUIT 702
COMBINATION SWITCH 704
TRANSMISSION CUT-OFF SWITCH 705
TRANSMISSION CUT-OFF SELECTOR SWITCH 706
NEUTRALIZER RELAY 707
KICK-DOWN SWITCH 708
KICK-DOWN ELECTRIC CIRCUIT 709
ELECTRICAL PARKING BRAKE CONTROL 715
PARKING BRAKE VALVE 717
PARKING SAFETY RELAY 717
NEUTRALIZER RELAY 717
EMERGENCY BRAKE SWITCH 717
CONDITIONS 718
1 STARTING SWITCH OFF 718
2 STARTING SWITCH ON 719
2-1 When parking brake switch is turned ON before starting switch is turned ON 719
2-2 Parking brake switch turned OFF (released) before starting switch is turned ON 720
3 PARKING BRAKE SWITCH TURNED OFF (Re- leased) AFTER STARTING SWITCH IS TURNED ON 721
4 PARKING BRAKE SWITCH ON (operated) 722
5 WHEN AIR PRESSURE DROPS (Emergency brake actuated) 723
PROXIMITY SWITCH 724
OPERATION 725
Lift arm RAISE 725
Kick-out 727
BUCKET “TILT’ 728
Hold 728
Tilt 729
Positioned 730
AUTO PRIMING SYSTEM (APS) 731
OPERATION 734
1 Preheat monitor lamp on vehicle monitor ON 734
2 After-heating monitor on vehicle monitor ON 735
APS CONTROLLER 736
RESISTOR 737
BIMETAL TIMER 737
ELECTRONIC VEHICLE MONITORING SYSTEM (EVMS) 738
INDICATION ON MONITOR PANEL 740
MONITOR WIRING HARNESS 742
SENSORS 743
ENGINE OIL LEVEL SENSOR 743
BRAKE OIL LEVEL SENSOR 744
COOLANT LEVEL SENSOR 744
FUEL GAUGE SENSOR 745
ENGINE OIL PRESSURE SENSOR 746
PARKING BRAKE SENSOR 746
AIR PRESSURE SENSOR 747
COOLANT TEMPERATURE, TORQUE CONVERTER OIL TEMPERATURE SENSOR 747
ROTATIONAL SPEED SENSOR 748
BRAKE LINE FAILURE SENSOR 748
TRANSMISSION OIL FILTER CLOGGING SENSOR 749
GROUND DRIVEN STEERING OPERATION SENSOR 749
82 TESTING AND ADJUSTING 750
STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM 754
MACHINE MONITOR (SPEEDOMETER MODULE) 757
TROUBLESHOOTING 758
CHECKS BEFORE TROUBLESHOOTING 759
METHOD OF USING YES-NO TROUBLESHOOTING FLOW CHART 760
CONNECTOR TERMINAL NUMBERS 762
PRECAUTION WHEN HANDLING CONNECTOR 766
ELECTRICAL WIRING DIAGRAM 768
ELECTRICAL CONNECTOR (CN) DIAGRAM 768
SENSOR LOCATION DIAGRAM 768
ELECTRICAL CIRCUIT SYSTEM 769
ENGINE STARTING CIRCUIT SYSTEM 769
ENGINE STOP CIRCUIT SYSTEM 770
TRANSMISSION CONTROL, PARKING CIRCUIT SYSTEM 771
PARKING BRAKE SYSTEM 772
PREHEATING SYSTEM 773
ELECTRICAL SYSTEM 774
VEHICLE MONITOR SYSTEM 775
TROUBLESHOOTING CHART FOR ELECTRIC SYSTEM 776
POSITION OF CONNECTORS FOR TROUBLESHOOTING 777
E-1 ENGINE DOES NOT START 785
E-2 ENGINE DOES NOT STOP 789
E-3 ENGINE STOPS WHEN TRAVELING 790
E-4 PARKING BRAKE DOES NOT WORK (PARKING BRAKE SWITCH ON) 791
E-5 PARKING BRAKE IS NOT RELEASED 793
E-6 PARKING BRAKE IS RELEASED WHEN STARTING SWITCH IS TURNED ON 795
E-7 TRANSMISSION IS NOT RETURNED TO NEUTRAL WHEN PARKING BRAKE IS APPLIED 796
E-8 TRANSMISSION DOES NOT WORK NORMALLY 797
E-9 KICK-DOWN SWITCH DOES NOT WORK (1/2) 819
E-10 KICK-DOWN ONLY WORKS WHEN KICK-DOWN SWITCH IS ON 822
E-11 KICK-DOWN OPERATION IS NOT CANCELED 823
E-12 KICK-DOWN WORKS BY MISTAKE WHEN TRAVELING IN F2 825
E-13 MACHINE DOES NOT TRAVEL WHEN KICK-DOWN SWITCH IS PRESSED 825
E-14 PREHEATING IS NOT CARRIED OUT 827
E-15 PREHEATING REMAINS ON 829
TROUBLESHOOTING CHART FOR ELECTRONIC VEHICLE MONITORING SYSTEM 834
POSITION OF CONNECTORS FOR TROUBLESHOOTING 835
M-1 (BRAKE OIL LEVEL) FLASHES WHEN ENGINE IS STOPPED 843
M-2 (ENGINE OIL LEVEL) FLASHES WHEN ENGINE IS STOPPED 843
M-3 (RADIATOR WATER LEVEL) FLASHES WHEN ENGINE IS STOPPED 845
M-4 (BATTERY CHARGE) FLASHES WHEN ENGINE IS RUNNING 845
M-5 (TRANSMISSION OIL FILTER CLOGGING) FLASHES WHEN ENGINE IS RUNNING 847
M-6 (FUEL LEVEL) FLASHES WHEN ENGINE IS RUNNING 848
M-7 (BRAKE LINE FAILURE) FLASHES WHEN ENGINE IS RUNNING 849
M-8 (ENGINE OIL PRESSURE) FLASHES WHEN ENGINE IS RUNNING 850
M-9 (RADIATOR WATER LEVEL) FLASHES WHEN ENGINE IS RUNNING 851
M-10 (DROP IN AIR PRESSURE) FLASHES WHEN ENGINE IS RUNNING 853
M-11 (ENGINE WATER TEMPERATURE) FLASHES WHEN ENGINE IS RUNNING 853
M-12 (TORQUE CONVERTER OIL TEMPERATURE) FLASHES WHEN ENGINE IS RUNNING 853
M-13 (PARKING BRAKE) LIGHTS UP ABNORMALLY OR DOES NOT LIGHT UP 855
M-14 (WORKING LAMP) LIGHTS UP ABNORMALLY, OR DOES NOT LIGHT UP 857
M-15 (PREHEATING) LIGHTS UP, OR DOES NOT LIGHT UP 859
M-16 (TRANSMISSION CUT-OFF) LIGHTS UP, DOES NOT LIGHT UP 861
M-17 TURN SIGNAL HI BEAM LIGHTS UP, OR DOES NOT LIGHT UP 863
M-18 TURN SIGNAL DOES NOT FLASH EVEN WHEN HAZARD SWITCH IS TURNED ON 868
M-19 SPEEDOMETER DISPLAY DOES NOT WORK NORMALLY 869
M-20 HOURMETER DISPLAY DOES NOT WORK NORMALLY 871
M-21 WHEN STARTING SWITCH IS TURNED ON, MONITOR PANEL DOES NOT WORK, OR ONLY PART WORKS 873
M-22 WHEN STARTING SWITCH IS TURNED ON, ALL MONITOR PANEL LIGHTS LIGHT UP, BUT DO NOT GO OUT 875
M-23 (BATTERY CHARGE) FLASHES OR (ENGINE OIL PRESSURE) FLASHES WHEN ENGINE IS STOPPED 877
M-24 NONE OF THE MACHINE MONITOR PANEL LIGHTING LIGHTS UP, OR PARTS OF IT DOES NOT LIGHT UP 879
M-25 WHEN THE STARTING SWITCH IS TURNED TO THE ON POSITION (ENGINE STOPPED), AND THE BUZZER DOES NOT SOUND FOR 1 SEC WITH THE 883
M-26 NO ABNORMALITY IS SHOWN ON THE MONITOR DISPLAY, BUT THE ALARM BUZZER SOUNDS 883
M-27 WHEN THE STARTING SWITCH IS TURNED TO THE ON POSITION (ENGINE STOPPED), AND THE WARNING LAMP DOES NOT LIGHT UP FOR 2 SEC, 885
M-28 NO ABNORMALITY IS SHOWN ON THE MONITOR DISPLAY, BUT THE WARNING LAMP LIGHTS UP 886
M-29 ABNORMALITY IN THE FUEL GAUGE SYSTEM 887
M-30 ABNORMALITY IN THE AIR PRESSURE GAUGE SYSTEM 889
M-31 ABNORMALITY IN THE ENGINE WATER TEMPERATURE GAUGE SYSTEM 891
M-32 ABNORMALITY IN THE TORQUE CONVERTER OIL TEMPERATURE GAUGE SYSTEM 893
83 DISASSEMBLY AND ASSEMBLY 896
MACHINE MONITOR 897
REMOVAL 897
INSTALLATION 897
90 OTHERS 898
91 AIR CONDITIONER STRUCTURE AND FUNCTION 898
GENERAL 900
BASIC INFORMATION ON AIR CONDITIONERS 900
UNITS RELATED TO REFRIGERATION 900
Heat 900
Temperature 900
Pressure 901
Humidity 902
PRINCIPLE OF COOLING 903
1 Why do coolers cool? 903
2 Refrigerator using evaporation latent heat 903
3 Refrigeration method (Vapor compression) 903
4 Refrigerating cycle 904
5 Heating cycle 906
REFRIGERANTS 907
SAFETY PRECAUTIONS 907
REFRIGERATOR OIL (LUBE OIL) 908
SPECIFICATIONS 909
PIPING DIAGRAM 910
ELECTRIC WIRING DIAGRAM 911
COMPRESSOR (CRANK TYPE) 912
MAGNETIC CLUTCH 915
CONDENSER 916
RECEIVER W/SIGHT GLASS (LIQUID TANK) 918
AIR CONDITIONER UNIT 920
EXPANSION VALVE 921
EVAPORATOR 923
THERMOSTAT 923
PRESSURE SWITCH 924
HEATER 926
BLOWER UNIT 926
PIPING 927
AIR CONTROL SYSTEM 928
CONTROL PANEL 929
BLOWER SWITCH 929
AIR CONDITIONER SWITCH 929
TEMPERATURE CONTROL LEVER 929
AIR SOURCE SELECTOR LEVER 929
92 AIR CONDITIONER TESTING AND ADJUSTING 930
SERVICE TOOLS 932
GAUGE MANIFOLD 932
GAS LEAK DETECTOR 935
HALIDE TORCH LEAK DETECTOR 935
ELECTRIC LEAK TESTER 937
VALVE FOR SERVICE CANS 938
MAINTENANCE PROCEDURE 939
PRECAUTIONS WHEN REMOVING OR INSTALLING PIPING 939
PROHIBITED WORK 939
OTHER PRECAUTIONS 939
BLEEDING AIR FROM REFRIGERATION CIRCUIT 941
PURPOSE 941
CONNECTING GAUGE MANIFOLD 941
EVACUATION 942
AIR-TIGHTNESS CHECK 942
GAS-LEAK CHECK 942
EVACUATION (REPEATING) 943
CHARGING THE REFRIGERATION CIRCUIT WITH REFRIDGERANT 944
CHARGING FROM THE HIGH-PRESSURE SIDE 944
CHARGING FROM THE LOW PRESSURE SIDE 945
WHEN THE AMBIENT TEMPERATURE IS LOW 946
WHEN THE AMBIENT TEMPERATURE IS HIGH 946
REPLACING SERVICE CANS 947
CHECKING THE AMOUNT OF REFRIGERANT 947
REMOVAL OF GAUGE MANIFOLD 949
DISCHARGING THE REFRIGERANT 949
DAILY CHECKS 950
CHECK REFRIGERANT LEVEL 950
CLEANING THE CONDENSER 950
CHECKING THE V-BELT 950
CHECKING OIL LEVEL 951
PROCEDURE FOR CHECKING 951
PROCEDURE FOR CHECKING OIL LEVEL 951
ADDING AND REMOVING OIL 952
ADDING OIL BY EVACUATION 952
TROUBLESHOOTING 953
VISUAL AND ACOUSTICAL CHECKS 953
DEFECTIVE COOLING 954
TROUBLESHOOTING TABLES 955
DEFECTIVE HEATING 957
TROUBLESHOOTING USING GAUGE MANIFOLD 958
PREPARATIONS BEFORE MEASURING 958
INSUFFICIENT REFRIGERANT 958
EXCESSIVE REFRIGERANT OR INSUFFICIENT COOLING OF CONDENSER 959
AIR INSIDE REFRIGERATION SYSTEM 959
MOISTURE IN REFRIGERATING SYSTEM 960
REFRIGERANT DOES NOT CIRCULATE 961
FAILURE OF EXPANSION VALVE (OPEN TO FAR), DEFECTIVE MOUNTING OF HEAT SENSING TUBE 962
DEFECTIVE COMPRESSION BY COMPRESSOR 962
93 AIR CONDITIONER DISASSEMBLY AND ASSEMBLY 964
SPECIAL TOOLS 965
MAGNETIC CLUTCH 966
DISASSEMBLY OF 966
CHECKS BEFORE DISASSEMBLY 967
REMOVAL OF ROTOR AND STATOR 967
REMOVAL OF CENTER PIECE FROM ROTOR 968
REMOVAL OF BEARING FROM ROTOR 969
ASSEMBLY OF 970
ASSEMBLY OF BEARING TO ROTOR 970
ASSEMBLY OF CENTER PIECE TO ROTOR 970
ASSEMBLY OF STATOR AND ROTOR TO COMPRESSOR 971
AIR CONDITIONER UNIT 972
DISASSEMBLY OF 972
CHECKS BEFORE DISASSEMBLY 972
REMOVAL OF CONTROL PANELAND THERMOSTAT 976
REMOVAL OF UNIT COVER 978
REMOVAL OF WATER VALVE 978
REMOVAL OF EXPANSION VALVE 980
REMOVAL OF EVAPORATOR 982
REMOVAL OF HEATER CORE 982
REMOVAL OF PRESSURE SWITCHES 982
BLOWER UNIT 983
DISASSEMBLY 983
CHECKS BEFORE DISASSEMBLY 983
REMOVAL OF BLOWER RESISTOR 983
REMOVAL OF BLOWER MOTOR AND FAN 984
CONDENSER 985
DISASSEMBLY 985
CHECKS BEFORE DISASSEMBLY 985
REMOVAL OF CONDENSER, FAN MOTOR 986
REMOVAL OF PRESSURE SWITCH 987
REMOVAL OF RESISTOR 987
97 GEAR PUMP SA SERIES 988
GENERAL 989
PRINCIPLE OF OPERATION 990
PRESSURE LOADED TYPE GEAR PUMP 993
FIXED SIDE PLATE TYPE GEAR PUMP 995
SA SERIES 996
STRUCTURE 996
TESTING AND ADJUSTING 1000
DISASSEMBLY 1003
ASSEMBLY 1007
MAINTENANCE STANDARD 1012
99 METRIC CONVERSION TABLE 1014

DESCRIPTION:

Komatsu WA600-1L Wheel Loader Shop Manual CEBMW26010 – PDF DOWNLOAD

• MACHINE MODEL          SERIAL NUMBERS
• WA600-1 L                         A10391 and up

FOREWORD
This shop manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an
accurate understanding of the product and by showing him the correct way to perform repairs and make
judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity.
This shop manual mainly contains the necessary technical information for operations performed in a service
workshop.
For ease of understanding, the manual is divided into chapters for each main group of components; these
chapters are further divided into the following sections.
STRUCTURE AND FUNCTION
This section explains the structure and function of each component. It serves not only to give an
understanding of the structure, but also serves as reference material for troubleshooting.
TESTING AND ADJUSTING
This section explains checks to be made before and after performing repairs, as well as adjustments
to be made at completion of the checks and repairs.
Troubleshooting charts correlating “Problems” to “Causes” are also included in this section.
DISASSEMBLY AND ASSEMBLY
This section explains the order to be followed when removing, installing, disassembling or
assembling each component, as well as precautions to be taken for these operations.
MAINTENANCE STANDARD
This section gives the judgement standards when inspecting disassembled parts.
00-

G.B  16/12/24