Complete service repair manual with Electrical Wiring Diagrams for Komatsu Wheel Loaders WA30, WA40, WA50, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.

Komatsu Wheel LoaderWA30, WA40, WA50 workshop service repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.

PRODUCT DETAILS:
Total Pages: 1,532 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English

SEAM010700 - Wheel Loader WA20-2, WA30-5, WA40-3, WA50-3 Operation & Maintenance Manual.pdf
SEAM034300 - Wheel Loader WA30-5, WA50-3 Operation & Maintenance Manual.pdf
SEAM059800T - Wheel Loader WA30-5, WA50-3 Operation & Maintenance Manual.pdf
SEAM03610102 - Wheel Loader WA20-1 Operation & Maintenance Manual.pdf
SEAM03630102 - Wheel Loader WA40-1 Operation & Maintenance Manual.pdf
SEBM016503 - Wheel Loader WA30-5 avance Shop Manual.pdf
SEBM017803 - Wheel Loader WA50-3 avance Shop Manual.pdf
SEBM03630101 - Wheel Loader WA40-1 Shop Manual.pdf
SEN04670-04 - Wheel Loader WA50-6 Shop Manual.pdf
TEN00071-00 - Wheel Loader WA30-5, WA50-3 Operation & Maintenance Manual.pdf
TEN00316-04 - Wheel Loader WA50-6 Operation & Maintenance Manual.pdf
TEN00513-00 - Wheel Loader WA50-6 Operation & Maintenance Manual.pdf
TEN00533-01 - Wheel Loader WA50-6 Operation & Maintenance Manual.pdf

MAIN SECTIONS
SEAM010700 - Wheel Loader WA20-2, WA30-5, WA40-3, WA50-3 Operation & Maintenance Manual.....2
  COVER.....2
  1.  FOREWORD.....3
  2.  SAFETY INFORMATION.....4
  3.  INTRODUCTION.....5
  4.  LOCATION OF PLATES, TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR.....6
  5.  CONTENTS.....8
  SAFETY.....11
    6.  GENERAL PRECAUTIONS.....12
    7.  PRECAUTIONS DURING OPERATION.....17
      7.1  BEFORE STARTING ENGINE.....17
      7.2  OPERATING MACHINE.....19
      7.3  TRANSPORTATION.....24
      7.4  BATTERY.....25
      7.5  TOWING.....26
    8.  PRECAUTIONS FOR MAINTENACE.....27
      8.1  BEFORE CARRYING OUT MAINTENANCE.....27
      8.2  DURING MAINTENANCE.....31
      8.3  TIRES.....35
    9.  POSITION FOR ATTACHING SAFETY LABELS.....37
  OPERATION.....41
    10.  GENERAL VIEW.....42
      10.1  GENERAL VIEW OF MACHINE.....42
      10.2  GENERAL VIEW OF CONTROLS AND GAUGES.....43
    11.  EXPLANATION OF COMPONENTS.....44
      11.1  METER, LAMPS.....44
      11.2  SWITCHES.....48
      11.3  CONTROL LEVERS, PEDALS.....50
      11.4  CAP WITH LOCK.....54
      11.5  SAFETY BAR.....54
      11.6  TILT HOOD.....55
      11.7  TOWING PIN.....55
      11.8  FUSE.....55
      11.9  FUSIBLE LINK.....56
      11.10  MANUAL POCKET.....57
      11.11  CONNECTORS.....57
    12.  OPERATION.....58
      12.1  CHECK BEFORE STARTING ENGINE.....58
      12.2  STARTING ENGINE.....69
      12.3  OPERATIONS AND CHECKS AFTER STARTING ENGINE.....72
      12.4  MOVING MACHINE OFF.....74
      12.5  CHANGING DIRECTION.....76
      12.6  TURNING.....76
      12.7  STOPPING MACHINE.....77
      12.8  OPERATION OF WORK EQUIPMENT.....78
      12.9  WORK POSSIBLE USING WHEEL LOADER.....79
      12.10  PRECAUTIONS FOR OPERATION.....83
      12.11  ADJUSTING WORK EQUIPMENT POSTURE.....85
      12.12  PARKING MACHINE.....86
      12.13  CHECKS AFTER COMPLETIONOF OPERATION.....87
      12.14  STOPPING ENGINE.....88
      12.15  CHECK AFTER STOPPING ENGINE.....88
      12.16  LOCKING.....88
      12.17  HANDLING THE TIRES.....89
    13.  TRANSPORTATION.....92
      13.1  LOADING, UNLOADING WORK.....92
      13.2  PRECAUTIONS FOR LOADING.....93
      13.3  LIFTING MACHINE.....93
      13.4  PRECAUTIONS FOR TRANSPORTATION.....96
      13.5  REMOVING AND INSTALLATION OF CANOPY.....96
    14.  COLD WEATHER OPERATION.....98
      14.1  PRECAUTIONS FOR LOW TEMPERATURE.....98
      14.2  PRECAUTIONS AFTER COMPLETION OF WORK.....100
      14.3  AFTER COLD WEATHER.....100
    15.  LONG-TERM STORAGE.....101
      15.1  BEFORE STORAGE.....101
      15.2  DURING STORAGE.....101
      15.3  AFTER STORAGE.....101
    16.  TROUBLESHOOTING.....102
      16.1  WHEN MACHINE RUNS OUT OF FUEL.....102
      16.2  TOWING THE MACHINE.....103
      16.3  IF BATTERY IS DISCHARGED.....106
      16.4  OTHER TROUBLE.....110
  MAINTENANCE.....115
    17.  GUIDES TO MAINTENANCE.....116
    18.  OUTLINES OF SERVICE.....119
      18.1  OUTLINE OF OIL, FUEL, COOLANT.....119
      18.2  OUTLINE OF ELECTRIC SYSTEM.....122
    19.  WEAR PARTS LIST.....123
    20.  USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE.....124
    21.  STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS.....128
      21.1  INTRODUCTION OF NECESSARY TOOLS.....128
      21.2  TORQUE LIST.....130
    22.  PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS.....131
    23.  MAINTENANCE SCHEDULE CHART.....138
      23.1  MAINTENANCE SCHEDULE CHART.....138
    24.  SERVICE PROCEDURE.....141
      24.1  INITIAL 250 HOURS SERVICE.....141
      24.2  WHEN REQUIRED.....142
      24.3  CHECK BEFORE STARTING.....156
      24.4  EVERY 50 HOURS SERVICE.....162
      24.5  EVERY 250 HOURS SERVICE.....163
      24.6  EVERY 500 HOURS SERVICE.....168
      24.7  EVERY 1000 HOURS SERVICE.....171
      24.8  EVERY 2000 HOURS SERVICE.....174
  SPECIFICATIONS.....177
    25.  SPECIFICATIONS.....178
  OPTIONS, ATTACHMENTS.....179
    26.  OPTIONAL PARTS AND ATTACHMENTS.....180
    27.  SEAT BELT.....181
      27.1  FASTENING AND REMOVING BELT.....181
      27.2  ADJUST BELT LENGTH.....182
      27.3  CHECK SEAT BELT AND MOUNTS.....182
    28.  EQUIPMENT WITH CAB.....183
      28.1  SWITCHES.....183
      28.2  REAR WINDOW.....187
      28.3  CHECK AND MAINTENANCE.....188
SEAM034300 - Wheel Loader WA30-5, WA50-3 Operation & Maintenance Manual.....197
  COVER PAGE.....197
  1.  FOREWORD.....198
  2.  SAFETY INFORMATION.....199
  3.  INTRODUCTION.....200
  4.  LOCATION OF PLATES, TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR.....201
  5.  CONTENTS.....202
  SAFETY.....205
    6.  GENERAL PRECAUTIONS.....206
    7.  PRECAUTIONS DURING OPERATION.....211
      7.1  BEFORE STARTING ENGINE.....211
      7.2  OPERATING MACHINE.....213
      7.3  TRANSPORTATION.....218
      7.4  BATTERY.....219
      7.5  TOWING.....220
    8.  PRECAUTIONS FOR MAINTENANCE.....221
      8.1  BEFORE CARRYING OUT MAINTENANCE.....221
      8.2  DURING MAINTENANCE.....225
      8.3  PRECAUTIONS WITH TIRES.....229
    9.  POSITION FOR ATTACHING SAFETY LABELS.....230
  OPERATION.....235
    10.  GENERAL VIEW.....236
      10.1  GENERAL VIEW OF MACHINE.....236
      10.2  GENERAL VIEW OF CONTROLS AND GAUGES.....237
    11.  EXPLANATION OF COMPONENTS.....239
      11.1  METER, LAMPS.....239
      11.2  SWITCHES.....242
      11.3  CONTROL LEVERS, PEDALS.....244
      11.4  CAP WITH LOCK.....248
      11.5  SAFETY BAR.....248
      11.6  TILT HOOD.....249
      11.7  TOWING PIN.....249
      11.8  FUSE.....249
      11.9  FUSIBLE LINK.....250
      11.10  MANUAL POCKET.....251
      11.11  CONNECTORS.....251
    12.  OPERATION.....252
      12.1  CHECK BEFORE STARTING ENGINE.....252
      12.2  STARTING ENGINE.....265
      12.3  OPERATIONS AND CHECKS AFTER STARTING ENGINE.....268
      12.4  MOVING MACHINE OFF.....270
      12.5  CHANGING DIRECTION.....272
      12.6  TURNING.....272
      12.7  STOPPING MACHINE.....273
      12.8  OPERATION OF WORK EQUIPMENT.....274
      12.9  OPERATING FRONT ATTACHMENT SERVICE HYDRAULIC CIRCUIT.....275
      12.10  WORK POSSIBLE USING WHEEL LOADER.....277
      12.11  PRECAUTIONS FOR OPERATION.....281
      12.12  ADJUSTING WORK EQUIPMENT POSTURE.....283
      12.13  PARKING MACHINE.....284
      12.14  CHECKS AFTER COMPLETION OF OPERATION.....285
      12.15  STOPPING ENGINE.....286
      12.16  CHECK AFTER STOPPING ENGINE.....286
      12.17  LOCKING.....286
      12.18  HANDLING THE TIRES.....287
    13.  TRANSPORTATION.....290
      13.1  LOADING, UNLOADING WORK.....290
      13.2  PRECAUTIONS FOR LOADING.....291
      13.3  LIFTING MACHINE.....291
      13.4  PRECAUTIONS FOR TRANSPORTATION.....294
    14.  COLD WEATHER OPERATION.....295
      14.1  PRECAUTIONS FOR LOW TEMPERATURE.....295
      14.2  PRECAUTIONS AFTER COMPLETION OF WORK.....297
      14.3  AFTER COLD WEATHER.....297
    15.  LONG-TERM STORAGE.....298
      15.1  BEFORE STORAGE.....298
      15.2  DURING STORAGE.....298
      15.3  AFTER STORAGE.....298
    16.  TROUBLESHOOTING.....299
      16.1  WHEN MACHINE RUNS OUT OF FUEL.....299
      16.2  TOWING THE MACHINE.....300
      16.3  IF BATTERY IS DISCHARGED.....303
      16.4  OTHER TROUBLE.....307
  MAINTENANCE.....312
    17.  GUIDES TO MAINTENANCE.....313
    18.  OUTLINES OF SERVICE.....316
      18.1  OUTLINE OF OIL, FUEL, COOLANT.....316
      18.2  OUTLINE OF ELECTRIC SYSTEM.....318
    19.  WEAR PARTS LIST.....319
    20.  USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE.....320
    21.  STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS.....324
      21.1  INTRODUCTION OF NECESSARY TOOLS.....324
      21.2  TORQUE LIST.....326
    22.  PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS.....327
    23.  MAINTENANCE SCHEDULE CHART.....328
      23.1  MAINTENANCE SCHEDULE CHART.....328
    24.  SERVICE PROCEDURE.....331
      24.1  INITIAL 250 HOURS SERVICE.....331
      24.2  WHEN REQUIRED.....332
      24.3  CHECK BEFORE STARTING.....345
      24.4  EVERY 50 HOURS SERVICE.....351
      24.5  EVERY 250 HOURS SERVICE.....352
      24.6  EVERY 500 HOURS SERVICE.....357
      24.7  EVERY 1000 HOURS SERVICE.....361
      24.8  EVERY 2000 HOURS SERVICE.....364
  SPECIFICATIONS.....366
    25.  SPECIFICATIONS.....367
SEAM03610102 - Wheel Loader WA20-1 Operation & Maintenance Manual.....370
  COVER.....370
  FOREWORD.....371
  BREAKING IN YOUR NEW MACHINE.....372
  CONTENTS.....373
  SAFETY HINTS.....374
  GENERAL LOCATIONS AND SPECIFICATIONS.....379
  INSTRUMENTS AND CONTROLS.....380
  CHECK BEFORE STARTING.....390
  OPERATING YOUR MACHINE.....394
  BUCKET OPERATION.....401
  HOW TO USE INCHING PEDAL.....405
  TIRE REPLACEMENT.....407
  HANDLING THE TIRES.....408
  HANDLING OF BATTERY.....409
  MACHINE MOVEMENT.....411
  COLD WEATHER OPERATION.....412
  TRANSPORTATION.....415
  PERIODIC MAINTENANCE.....416
    PRECAUTIONS FOR MAINTENANCE.....417
    PERIODIC REPLACEMENT OF PARTS FOR SAFETY.....421
    MAINTENANCE TABLE.....422
    OIL FILLER AND LEVEL GAUGE POSITIONS.....425
    EVERY 50 HOURS SERVICE.....426
    EVERY 250 HOURS SERVICE.....426
    EVERY 500 HOURS SERVICE.....433
    EVERY 1000 HOURS SERVICE.....437
    EVERY 2000 HOURS SERVICE.....440
    WHEN REQUIRED.....441
  ADJUSTMENT.....446
  STORAGE.....448
  SERVICE METER.....450
  MACHINE AND ENGINE SERIAL NUMBERS.....451
  FUEL,COOLANT AND LUBRICANTS.....452
SEBM016503 - Wheel Loader WA30-5 avance Shop Manual.....456
  COVER.....456
  CONTENTS.....457
  01 GENERAL.....480
    GENERAL ASSEMBLY DRAWING.....481
    SPECIFICATIONS.....483
    WEIGHT TABLE.....486
    LIST OF LUBRICANT AND WATER.....487
  10 STRUCTURE AND FUNCTION.....489
    POWER TRAIN.....490
    POWER TRAIN SYSTEM.....491
    RADIATOROIL COOLER.....493
    DAMPER COUPLING.....494
    HST PIPING.....495
    HST HYDRAULIC SYSTEM DIAGRAM.....496
    HST HYDRAULIC CIRCUIT DIAGRAM.....497
    MAIN PISTON PUMP.....498
    HIGH-PRESSURE RELIEF VALVE.....500
    LOW-PRESSURE RELIEF VALVE.....502
    WORK EQUIPMENTSTEERING PUMP, HST CHARGE PUMP.....503
    CHARGE PUMP OIL FILTER.....504
    SPEED RELATED VALVE (DA VALVE).....505
    PISTON MOTOR.....506
    DIRECTIONAL SHUTTLE VALVE.....508
    SERVO VALVE.....509
    INCHING VALVE.....510
    TRANSFER.....511
    HST CONTROL.....512
    DRIVE SHAFT.....513
    AXLE.....514
    DIFFERENTIAL.....516
    FINAL DRIVE.....519
    AXLE MOUNT.....521
    TIREWHEEL.....522
    CENTER HINGE PIN.....523
    STEERING PIPING.....524
    STEERING COLUMN.....525
    PRIORITY VALVE.....526
    STEERING VALVE (ORBIT-ROLL).....530
    BRAKE, PARKING BRAKE CONTROL.....538
    BRAKE (ALSO USED AS PARKING BRAKE).....539
    WORK EQUIPMENT PIPING.....540
    WORK EQUIPMENT HYDRAULIC SYSTEM DIAGRAM.....541
    WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM.....542
    WORK EQUIPMENT LEVER LINKAGE.....543
    HYDRAULIC TANK.....544
    HYDRAULIC FILTER.....545
    MAIN CONTROL VALVE.....546
    WORK EQUIPMENT LINKAGE.....553
    BUCKET.....554
    BUCKET POSITIONER.....555
    PROXIMITY SWITCH.....556
    ROPS CANOPY.....557
    CENTRAL PANEL (CLUSTER GAUGE).....558
    ENGINE START CIRCUIT.....559
    ENGINE STOP CIRUIT.....559
    PREHEATING CIRCUIT.....560
    PARKING BRAKE CIRCUIT.....561
  20 TESTING AND ADJUSTING.....562
    STANDARD VALUE TABLE FOR ENGINE.....563
    STANDARD VALUE TABLE FOR CHASSIS.....565
    TABLE OF TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING.....570
    ADJUSTING VALVE CLEARANCE.....571
    MEASURING COMPRESSION PRESSURE.....574
    TESTING AND ADJUSTING FUEL INJECTION TIMING.....575
    BLEEDING AIR FROM FUEL CIRCUIT.....581
    TESTING AND ADJUSTING FAN BELT TENSION.....582
    TESTING FOR ABNORMALITY IN FUEL LEVEL SENSOR.....584
    MEASURING ACCELERATOR PEDAL.....585
    MEASURING OPERATING EFFORT, TRAVEL OF DIRECTIONAL LEVER.....587
    MEASURING STALL SPEED.....588
    MEASURING HST OIL PRESSURE.....589
    TESTING AND ADJUSTING STEERING WHEEL.....590
    MEASURING OPERATING TIME FOR STEERING WHEEL.....591
    MEASURING STEERING PRESSURE.....592
    TESTING AND ADJUSTING BRAKE PEDAL.....593
    MEASURING OPERATING EFFORT, TRAVEL OF BRAKE PEDAL.....595
    MEASURING BRAKE PERFORMANCE.....596
    MEASURING PARKING BRAKE PERFORMANCE.....597
    MEASURING BRAKE DISC WEAR.....598
    TESTING AND ADJUSTING INCHING VALVE LINKAGE.....599
    MEASURING AND ADJUSTING WORK EQUIPMENT CONTROL LEVER.....600
    MEASURING TRAVEL OF MAIN CONTROL VALVE SPOOL.....602
    MEASURING WORK EQUIPMENT PRESSURE.....603
    TESTING AND ADJUSTING BUCKET POSITIONER.....605
    TROUBLESHOOTING.....607
      POINTS TO REMEMBER WHEN TROUBLESHOOTING.....608
      SEQUENCE OF EVENTS IN TROUBLESHOOTING.....609
      POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE.....610
      CHECKS BEFORE TROUBLESHOOTING.....618
      TROUBLESHOOTING OF ELECTRICAL SYSTEM.....619
        E-1 ENGINE DOES NOT START.....620
      TROUBLESHOOTING OF HYDRAULIC SYSTEM (H MODE).....625
        TROUBLESHOOTING.....626
        CHECKING MACHINE BEFORE TROUBLESHOOTING.....626
        CHECKING HST BEFORE TROUBLESHOOTING.....627
        H-1 IMPOSSIBLE TO TRAVEL IN EITHER DIRECTION (FORWARD OR REVERSE).....629
        H-2 IMPOSSIBLE TO TRAVEL IN ONE DIRECTION ONLY (EITHER FORWARD OR REVERSE).....630
        H-3 LACKS SPEED IN BOTH DIRECTIONS (FORWARD AND REVERSE).....631
        H-4 LACKS SPEED IN ONE DIRECTION ONLY (FORWARD OR REVERSE).....632
        H-5 LACKS DRAWBAR PULL IN BOTH DIRECTIONS (FORWARD AND REVERSE).....632
        H-6 LACKS DRAWBAR PULL IN ONE DIRECTION ONLY (FORWARD OR REVERSE).....633
        H-7 ENGINE SPEED IS HIGH WHEN STARTING IN BOTH DIRECTIONS (FORWARD AND REVERSE).....633
        H-8 ENGINE SPEED IS HIGH WHEN STARTING IN ONE DIRECTION ONLY (FORWARD OR REVERSE).....633
  30 DISASSEMBLY AND ASSEMBLY.....634
    HOW TO READ THIS MANUAL.....635
    PRECAUTIONS WHEN CARRYING OUT OPERATION.....637
    SPECIAL TOOLS LIST.....639
    FUEL INJECTION PUMP.....640
      REMOVAL.....640
      INSTALLATION.....641
    ENGINE.....642
      REMOVAL AND INSTALLATION.....642
    RADIATOR.....672
      REMOVAL AND INSTALLATION.....672
    FUEL TANK.....681
      REMOVAL AND INSTALLATION.....681
    MAIN PISTON PUMP.....682
      REMOVAL.....682
      INSTALLATION.....687
      DISASSEMBLY AND ASSEMBLY.....691
    PISTON MOTOR.....697
      REMOVAL.....697
      INSTALLATION.....699
      DISASSEMBLY.....701
      ASSEMBLY.....702
    ENGINE AND TRANSFER.....703
      REMOVAL AND INSTALLATION.....703
    TRANSFER.....731
      DISASSEMBLY.....731
      ASSEMBLY.....734
    DRIVE SHAFT.....738
      DISASSEMBLY.....738
      ASSEMBLY.....739
    FRONT AXLE.....740
      REMOVAL.....740
      INSTALLATION.....741
    REAR AXLE.....742
      REMOVAL.....742
      INSTALLATION.....745
    DIFFERENTIALS.....748
      DISASSEMBLY.....748
      ASSEMBLY.....751
    AXLE HOUSINGS.....762
      DISASSEMBLY.....762
      ASSEMBLY.....767
    CENTER HINGE PIN.....773
      REMOVAL.....773
      INSTALLATION.....780
    STEERING VALVE.....790
      REMOVAL AND INSTALLATION.....790
      DISASSEMBLY.....791
      ASSEMBLY.....794
    RELIEF VALVE HOUSING SIDE OF STEERING VALVE.....799
      DISASSEMBLY.....799
      ASSEMBLY.....800
    STEERING CYLINDER.....801
      REMOVAL AND INSTALLATION.....801
    PARKING BRAKE.....802
      REMOVAL.....802
      INSTALLATION.....804
    HYDRAULIC TANK.....807
      REMOVAL AND INSTALLATION.....807
    WORK EQUIPMENT VALVE.....808
      REMOVAL AND INSTALLATION.....808
    DUMP CYLINDER.....809
      REMOVAL AND INSTALLATION.....809
    LIFT CYLINDER.....810
      REMOVAL AND INSTALLATION.....810
    HYDRAULIC CYLINDER.....811
      DISASSEMBLY.....811
      ASSEMBLY.....813
    WORK EQUIPMENT.....815
      REMOVAL.....815
      INSTALLATION.....818
    COUNTERWEIGHT.....821
      REMOVAL AND INSTALLATION.....821
    INSTRUMENTS PANEL.....822
      REMOVAL AND INSTALLATION.....822
  40 MAINTENANCE STANDARD.....823
    TRANSMISSIONENGINE MOUNT.....824
    WORK EQUIPMENTSTEERING PUMP, HST CHARGE PUMP.....825
    TRANSFER.....826
    HST INCHING VALVE.....828
    DRIVE SHAFT.....829
    DIFFERENTIAL (1/2).....830
    DIFFERENTIAL (2/2).....831
    FINAL DRIVE.....833
    AXLE MOUNT.....834
    STEERING COLUMN.....835
    PRIORITY VALVE.....836
    STEERING CYLINDER MOUNT.....837
    BRAKE.....838
    HYDRAULIC CYLINDER.....839
    CENTER HINGE PIN.....841
    WORK EQUIPMENT LINKAGE.....842
    BUCKET POSITIONER.....844
    BUCKET.....845
  90 OTHERS.....846
    ELECTRICAL CIRCUIT DIAGRAMSERIAL NO. 22005-26000.....847
    ELECTRICAL CIRCUIT DIAGRAM (1/2)SERIAL NO. 26001 AND UP.....848
    ELECTRICAL CIRCUIT DIAGRAM (2/2)SERIAL NO. 26001 AND UP.....849
    BACKHOE.....850
      CONTENTS.....851
      GENERAL.....852
        GENERAL ASSEMBLY DRAWING.....852
        SPECIFICATIONS.....853
        WEIGHT TABLE.....855
      STRUCTURE AND FUNCTION.....856
        VALVE CONTROL.....856
        HYDRAULIC CIRCUIT DIAGRAM.....857
        BACKHOE CONTROL VALVE.....858
        CHECK VALVE.....860
        WORK EQUIPMENT.....862
        ACTUAL ELECTRICAL WIRING DIAGRAM.....863
        ELECTRICAL CIRCUIT DIAGRAM.....864
      TESTING AND ADJUSTING.....865
        ADJUSTING BACKHOE SWING.....865
TEN00071-00 - Wheel Loader WA30-5, WA50-3 Operation & Maintenance Manual.....866
  COVER.....866
  FOREWORD.....867
    FOREWORD.....868
    SAFETY INFORMATION.....871
    INTRODUCTION.....873
      FRONT/REAR, LEFT/RIGHT DIRECTIONS OF MACHINE.....873
    NECESSARY INFORMATION.....874
      PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE.....874
      ENGINE SERIAL NO. PLATE AND POSITION.....874
      POSITION OF SERVICE METER.....874
      TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR.....875
  CONTENTS.....876
  SAFETY.....879
    SAFETY.....880
    SAFETY LABELS.....882
      LOCATION OF SAFETY LABELS.....883
      SAFETY LABELS.....884
    GENERAL PRECAUTIONS.....888
      SAFETY RULES.....888
      IF ABNORMALITIES ARE FOUND.....888
      CLOTHING AND PERSONAL PROTECTIVE ITEMS.....888
      FIRE EXTINGUISHER AND FIRST AID KIT.....888
      SAFETY FEATURES.....888
      KEEP MACHINE CLEAN.....889
      INSIDE OPERATOR'S COMPARTMENT.....889
      ALWAYS APPLY LOCK WHEN LEAVING OPERATOR'S SEAT.....889
      HANDRAILS AND STEPS.....890
      MOUNTING AND DISMOUNTING.....890
      NO PEOPLE ON ATTACHMENTS.....890
      DO NOT GET CAUGHT IN ARTICULATED PORTION.....891
      PREVENTION OF BURNS.....891
      FIRE PREVENTION.....892
      ACTION IF FIRE OCCURS.....893
      WINDOW WASHER LIQUID.....893
      PRECAUTIONS WHEN USING ROPS (ROLL OVER PROTECTIVE STRUCTURE).....893
      PRECAUTIONS FOR ATTACHMENTS, OPTIONS.....893
      UNAUTHORIZED MODIFICATION.....893
      SAFETY AT WORKSITE.....894
      WORKING ON LOOSE GROUND.....894
      DO NOT GO CLOSE TO HIGH-VOLTAGE CABLES.....894
      ENSURE GOOD VISIBILITY.....895
      VENTILATION FOR ENCLOSED AREAS.....895
      CHECKING SIGNALMAN'S SIGNALS AND SIGNS.....895
      EMERGENCY EXIT FROM OPERATOR'S CAB.....895
      BE CAREFUL ABOUT ASBESTOS DUST.....896
    PRECAUTIONS FOR OPERATION.....897
      STARTING ENGINE.....897
        CHECKS BEFORE STARTING ENGINE.....897
        PRECAUTIONS WHEN STARTING.....897
        PRECAUTIONS IN COLD AREAS.....898
      OPERATION.....899
        CHECKS BEFORE OPERATION.....899
        PRECAUTIONS WHEN TRAVELING IN FORWARD OR REVERSE.....899
        PRECAUTIONS WHEN TRAVELING.....900
        PRECAUTIONS WHEN USING A SMOKE POT.....900
        TRAVELING ON SLOPES.....901
        PROHIBITED OPERATIONS.....902
        PRECAUTIONS WHEN OPERATING.....902
        METHODS OF USING BRAKE.....903
        OPERATE CAREFULLY ON SNOW.....903
        PARKING MACHINE.....904
      TRANSPORTATION.....905
        LOADING AND UNLOADING.....905
        SHIPPING.....905
      BATTERY.....906
        BATTERY HAZARD PREVENTION.....906
        STARTING WITH BOOSTER CABLES.....907
      TOWING.....908
        WHEN TOWING.....908
    PRECAUTIONS FOR MAINTENANCE.....909
      WARNING TAG.....909
      KEEP WORK PLACE CLEAN AND TIDY.....909
      APPOINT LEADER WHEN WORKING WITH OTHERS.....909
      STOP ENGINE BEFORE CARRYING OUT MAINTENANCE.....910
      TWO WORKERS FOR MAINTENANCE WHEN ENGINE IS RUNNING.....911
      PROPER TOOLS.....911
      PERSONNEL.....912
      ATTACHMENTS.....912
      WORK UNDER THE MACHINE.....912
      NOISE.....912
      PRECAUTIONS WHEN USING HAMMER.....913
      REPAIR WELDING.....913
      REMOVING BATTERY TERMINAL.....913
      PRECAUTIONS WITH HIGH-PRESSURE OIL.....913
      HANDLING HIGH-PRESSURE HOSES.....914
      WASTE MATERIALS.....914
      COMPRESSED AIR.....914
      PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS.....914
    PRECAUTIONS WITH TIRES.....915
      HANDLING TIRES.....915
      PRECAUTIONS WHEN STORING TIRES.....915
  OPERATION.....916
    GENERAL VIEW.....917
      GENERAL VIEW OF MACHINE.....917
      GENERAL VIEW OF CONTROLS AND GAUGES.....918
    EXPLANATION OF COMPONENTS.....920
      MACHINE MONITOR.....920
      SWITCHES.....929
      CONTROL LEVERS, PEDALS.....931
      CAP WITH LOCK.....935
      FRAME LOCK BAR.....936
      TILT HOOD.....936
      TOWING PIN.....936
      FUSE.....937
      FUSIBLE LINK.....938
      MANUAL POCKET.....938
      POWER OUTLET.....938
    OPERATION.....939
      CHECK BEFORE STARTING ENGINE, ADJUST.....939
      STARTING ENGINE.....950
      OPERATIONS AND CHECKS AFTER STARTING ENGINE.....953
      STOPPING ENGINE.....954
      MOVING THE MACHINE (DIRECTIONAL, SPEED), STOPPING THE MACHINE.....955
      TURNING.....959
      OPERATION OF WORK EQUIPMENT.....960
      HANDLING FRONT ATTACHMENT SERVICE HYDRAULIC CIRCUIT (IF EQUIPPED).....961
      WORK POSSIBLE USING WHEEL LOADER.....962
      PRECAUTIONS FOR OPERATION.....966
      ADJUSTING WORK EQUIPMENT POSTURE.....968
      PARKING MACHINE.....970
      CHECKS AFTER COMPLETION OF OPERATION.....972
      LOCKING.....972
      HANDLING THE TIRES.....973
    TRANSPORTATION.....976
      TRANSPORTATION PROCEDURE.....976
      LOADING, UNLOADING WORK WITH TRAILERS.....976
      LIFTING MACHINE.....979
      REMOVAL, INSTALLATION OF CANOPY.....983
    COLD WEATHER OPERATION.....985
      PRECAUTIONS FOR LOW TEMPERATURE.....985
      PRECAUTIONS AFTER COMPLETION OF WORK.....986
      AFTER COLD WEATHER.....987
    LONG-TERM STORAGE.....988
      BEFORE STORAGE.....988
      DURING STORAGE.....988
      AFTER STORAGE.....988
    TROUBLESHOOTING.....989
      WHEN MACHINE RUNS OUT OF FUEL.....989
      TOWING THE MACHINE.....989
      IF BATTERY IS DISCHARGED.....991
      OTHER TROUBLE.....994
  MAINTENANCE.....999
    GUIDES TO MAINTENANCE.....1000
    OUTLINES OF SERVICE.....1002
      HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC.....1002
      OUTLINE OF ELECTRIC SYSTEM.....1004
    WEAR PARTS.....1005
      WEAR PARTS LIST.....1005
    USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO .....1006
      PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS.....1006
    STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS.....1010
      TORQUE LIST.....1010
    PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS.....1011
    MAINTENANCE SCHEDULE CHART.....1012
      MAINTENANCE SCHEDULE CHART.....1012
    SERVICE PROCEDURE.....1014
      INITIAL 250 HOURS SERVICE OR INITIAL 3 MONTHS (ONLY AFTER THE FIRST 250.....1014
      WHEN REQUIRED.....1015
        REPLACE AIR CLEANER ELEMENT.....1015
        CLEAN INSIDE OF COOLING SYSTEM.....1016
        DRAIN WATER AND SEDIMENT FROM FUEL TANK.....1018
        CLEAN WATER SEPARATOR ELEMENT.....1019
        CHECK OIL LEVEL IN TRANSFER CASE, ADD OIL.....1020
        CHECK AXLE OIL LEVEL, ADD OIL.....1021
        CLEAN TRANSFER CASE BREATHER.....1022
        CLEAN AXLE CASE BREATHER.....1022
        CLEAN AND CHECK RADIATOR FINS.....1023
        TURN, REPLACE BOLT-ON CUTTING EDGE.....1023
        CHECK PARKING BRAKE.....1024
        ADJUST PARKING BRAKE RELEASE LEVER.....1024
        CHECK BRAKE PEDAL.....1024
        SELECTION AND INSPECTION OF TIRES.....1025
      CHECK BEFORE STARTING.....1027
      EVERY 50 HOURS SERVICE OR EVERY 1 MONTH.....1028
        CLEAN AIR CLEANER DUST CUP.....1028
      EVERY 250 HOURS SERVICE OR EVERY 3 MONTHS.....1029
        LUBRICATING.....1029
        CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL.....1030
        CLEAN AIR CLEANER ELEMENT.....1031
        CHECK FAN BELT TENSION, ADJUST.....1032
        CHECK BATTERY ELECTROLYTE LEVEL.....1033
        CHECK FOR LOOSE WHEEL HUB BOLTS, TIGHTEN.....1035
      EVERY 500 HOURS SERVICE OR EVERY 6 MONTHS.....1036
        LUBRICATE REAR AXLE PIVOT PIN (2 PLACES).....1036
        REPLACE FUEL FILTER CARTRIDGE.....1036
        CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE.....1038
      EVERY 1000 HOURS SERVICE OR EVERY 1 YEAR.....1039
        CHANGE OIL IN HYDRAULIC TANK, REPLACE HYDRAULIC OIL FILTER CARTRIDGE AND HST.....1039
        LUBRICATING.....1040
      EVERY 2000 HOURS SERVICE OR EVERY 2 YEARS.....1041
        CHANGE OIL IN TRANSFER CASE.....1041
        CHANGE AXLE OIL.....1042
        CHECK ALTERNATOR, STARTING MOTOR.....1042
        CHECK ENGINE VALVE CLEARANCE, ADJUST.....1042
  SPECIFICATIONS.....1043
    SPECIFICATIONS.....1044
  ATTACHMENTS, OPTIONS.....1045
    HANDLING SEAT BELT.....1046
      FASTENING AND REMOVING BELT.....1046
      ADJUST BELT LENGTH.....1046
      CHECK SEAT BELT AND MOUNTS.....1047
    HANDLING SERVICE HYDRAULIC CIRCUIT.....1048
      CONNECTING HYDRAULIC CIRCUIT.....1048
      ROUTE OF HYDRAULIC CIRCUIT.....1049
  INDEX.....1050

Komatsu Wheel Loader WA30 Repair Service Manual