Komatsu Wheel Loader WA320-LC Repair Service Manual

Make: 
Model: 
Price: US$ 35.00

Complete service repair manual with Electrical Wiring Diagrams for Komatsu Wheel Loader WA320-1LC, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.

Komatsu Wheel Loader WA320-1LC 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.

CEAMW19021 - Wheel Loader WA320-1LC Operation & Maintenance Manual.pdf
CEBMW19020 - Wheel Loader WA320-1LC Shop Manual.pdf

PRODUCT DETAILS:
Total Pages: 821 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English

TABLE OF CONTENTS
CEAMW19021 - Wheel Loader WA320-1LC Operation & Maintenance Manual....1
  FOREWORD....5
  INTRODUCTION....6
    SAFETY INFORMATION....6
    BREAKING IN THE NEW MACHINE....7
    MACHINE AND ENGINE SERIAL NUMBERS....8
    QUICK REFERENCE INFORMATION....9
    CONTENTS....10
  SAFETY PRECAUTIONS -- SECTION 1....19
    GENERAL PRECAUTIONS....20
      PERSONNEL PRECAUTIONS....20
      MACHINE PRECAUTIONS....20
    OPERATION....21
      BEFORE STARTING....21
      START-UP....22
      GENERAL OPERATING PRECAUTIONS....22
      DRIVING THE MACHINE....23
      OPERATING THE ATTACHMENTS....24
      PULLING/TOWING....24
      SHUTDOWN....25
    MAINTENANCE....25
      GENERAL MACHINE PRECAUTIONS....25
      GENERAL WORK PRECAUTIONS....26
      ATTACHMENTS....27
      ACCUMULATORS....27
      BRAKES....27
      CAB/ROPS....28
      COOLING....28
      ELECTRICAL....28
      ENGINE....29
      FUEL SYSTEM....29
      HYDRAULICS....29
      TIRES AND RIMS....30
      TURBOCHARGER....30
      VITON SEALS....30
    SAFETY PRODUCT GRAPHICS AND LOCATIONS....31
      BEFORE CARRYING OUT MAINTENANCE....43
  OPERATION -- SECTION 2....45
    GENERAL VIEW....46
    INSTRUMENTS AND CONTROLS....47
      MONITOR PANEL....47
        CHECK MONITOR LAMP GROUP....47
        CAUTION MONITOR LAMP GROUP....47
        METER GROUP....48
        WARNING LAMP....48
        SYSTEM CHECK....48
        CHECK MONITOR LAMP GROUP....49
          Engine Oil Level Monitor....49
          Coolant Level Monitor....50
        CAUTION MONITOR LAMP GROUP....50
          Battery charge monitor....51
          Fuel level monitor....51
          Brake system failure monitor....52
          Engine oil pressure monitor....53
          Coolant level monitor....53
          Brake pressure monitor....53
          Coolant temperature monitor....54
          Torque converter oil temperature monitor....54
          Ground driven steering monitor - if equipped....54
        METER GROUP....55
          Parking brake pilot lamp....55
          Pilot lamp for working lamp....56
          Transmission cut-off selector pilot lamp....56
          Ground driven steering pilot lamp - if equipped....56
          Engine cooling water temperature gauge....56
          Torque converter oil temperature gauge....57
          Fuel gauge....57
          Turn signal pilot lamp....57
          High beam pilot lamp....57
          Speedometer....58
          Service meter....58
      SWITCHES....59
        WORKING LAMP SWITCH....59
        STARTING SWITCH....60
        HAZARD LAMP SWITCH....60
        HORN BUTTON....60
        LAMP SWITCHES....61
          Lamp switch....61
          Turn signal lever....61
          Dimmer switch....61
        TRANSMISSION CUT-OFF SELECTOR SWITCH....62
        ETHER START SWITCH....62
        FRONT WIPER SWITCH....63
        REAR WIPER SWITCH....63
        WINDOW WASHER SWITCH....64
        FRONT FLOOD LIGHT SWITCH....64
        ACCESSARY SWITCH....64
        ROOM LAMP SWITCH....64
        ClGARETTE LIGHTER....65
      LEVERS AND PEDALS....66
        DIRECTIONAL LEVER....66
        SPEED CONTROL LEVER....67
        SPEED CONTROL LEVER STOPPER....67
        STEERING COLUMN TILT LEVER....67
        ACCELERATOR PEDAL....68
        BRAKE PEDALS....68
          Right brake pedal....68
          Left brake pedal....68
        LIFT ARM CONTROL LEVER....69
        BUCKET CONTROL LEVER....69
        WORK EQUIPMENT CONTROL LEVERS LOCK....70
        PARKING BRAKE LEVER....70
        WORK EQUIPMENT CONTROL LEVER....71
          MON-LEVER TYPE....71
      CAB DOOR HOLD OPEN LOCK - IF EQUIPPED....72
      AIR CLEANER SERVICE INDICATOR....72
      FRAME LOCKING BAR....72
      HOOD TILT LOCK....73
      MAIN CIRCUIT....73
      FUSE BOXES....74
      OPERATOR'S SEAT....76
        RIGID TYPE....76
          FORWARD-BACKWARD ADJUSTMENT....76
          SEAT HEIGHT ADJUSTMENT....76
          BACKREST ADJUSTMENT....76
        BUCKET TYPE SEAT (OPT)....76
          FORWARD-BACKWARD ADJUSTMENT....76
          SEAT ANGLE ADJUSTMENT....76
          SEAT CUSHION ADJUSTMENT....76
          BACKREST ADJUSTMENT....76
          SEAT HEIGHT ADJUSTMENT....76
        SEARS SEAT....77
          FORWARD-BACKWARD ADJUSTMENT....77
          SEAT ANGLE ADJUSTMENT....77
          WEIGHT ADJUSTMENT....77
          BACKREST TILT ADJUSTMENT....77
          HEIGHT ADJUSTMENT....77
        KAB SEAT....78
          WEIGHT ADJUSTMENT....78
          HEIGHT ADJUSTMENT....78
          BACKREST ANGLE ADJUSTMENT....78
          FORE AND AFT ADJUSTMENT....78
          HEADREST ADJUSTMENT (IF EQUIPPED)....78
      RIGHT SIDE ARMREST....79
      SEAT BELT....80
    DRAWBAR PIN....81
    CAB HEATER AND DEFROSTER ....82
      CONTROL PANEL....82
        FAN SPEED SWITCH....82
        FOOT / DEFROSTER SELECT LEVER....82
        AIR INTAKE SELECTOR LEVER....82
      CONTROL PANEL....83
        FAN SPEED SWITCH....83
        TEMPERATURE CONTROL LEVER....83
        AIR INTAKE SELECTOR LEVER....83
      METHOD OF OPERATION....84
    CAB HEATER, DEFROSTER AND AIR CONDITIONER - IF EQUIPPED....85
      CONTROL PANEL....85
        FAN SPEED SWITCH....85
        AIR CONDITIONER SWITCH....85
        TEMPERATURE CONTROL LEVER....85
        AIR INTAKE SELECTOR LEVER....85
      METHOD OF OPERATION....86
        PRECAUTIONS FOR USING AIR CONDITIONER....87
        HANDLING AIR CONDITIONER IN SEASON....87
        HANDLING AIR CONDITIONER IN OFF-SEASONS....87
    LOCKING FILLER CAPS....88
      FUEL TANK FILLER CAP....88
      HYDRAULIC TANK FILLER CAP....89
    CHECK BEFORE STARTING....90
      WALK-AROUND CHECK....90
      CHECK MONITOR PANEL....90
      CHECK AND REFILL COOLANT....91
      CHECK AIR CLEANER SERVICE INDICATOR....91
      CHECK OIL LEVEL AND REFILL IN ENGINE OIL PAN....92
      CHECK FUEL LEVEL AND REFILL FUEL....92
      DRAIN THE WATER FROM THE FUEL-WATER SEPARATOR....93
      ADDITIONAL CHECKS....93
      CHECK ELECTRICAL WIRING....93
    OPERATING YOUR MACHINE....95
      BEFORE STARTING THE ENGINE....95
      STARTING ENGINE....96
        SPECIAL STARTING....97
      COLD WEATHER STARTING....97
      COLD WEATHER WARM-UP PROCEDURE....99
      CHECKS AFTER STARTING....100
      MOVING MACHINE OFF....100
      SHIFTING GEAR....102
      SHIFTING BETWEEN FORWARD AND REVERSE....102
      STEERING MACHINE....103
      TO STOP THE MACHINE....104
      TO STOP THE ENGINE....105
      OPERATIONS AFTER STOPPING ENGINE....105
      OPERATIONAL PRECAUTIONS....106
        WORKING IN DUSTY LOCATIONS....106
        MAXIMUM DEPTH OF WATER....106
        IF WHEEL BRAKE DOES NOT WORK....107
      PRECAUTIONS WHEN DRIVING UP OR DOWN SLOPES....107
        LOWER THE CENTER OF GRAVITY WHEN TURNING....107
        BRAKING ON DOWNHILL SLOPES....107
        IF ENGINE STOPS....107
        POSSIBLE WORK USING LOADER....108
          EXCAVATION....108
          LEVELING....110
          LOAD AND CARRY OPERATlONS....111
          LOADING....111
            Cross Drive Loading....111
            V-Shape Loading....111
      PARKING MACHINE....112
    ADJUSTMENT OF WORK EQUIPMENT....113
      ADJUSTING BOOM KICKOUT....113
      ADJUSTING BUCKET POSITIONER....114
      BUCKET LEVEL INDICATOR....114
    HANDLING TIRES....115
      PRECAUTIONS WHEN HANDLING TIRES....115
      PRECAUTIONS WHEN DRIVING MACHINE....115
      TIRE PRESSURE....115
    TOWING....118
      TOWING THE MACHINE....118
        WHEN ENGINE CAN BE USED....118
        WHEN ENGINE CANNOT BE USED....118
    TRANSPORTATION....118
    COLD WEATHER OPERATION....119
      PREPARATION FOR LOW TEMPERATURE....119
        FUEL AND LUBRICANTS....119
        COOLANT....119
        BATTERY....119
      CAUTIONS AFTER COMPLETION OF WORK....119
    AFTER COLD WEATHER....120
    LONG TERM STORAGE....120
      BEFORE STORAGE....120
      DURING STORAGE....120
      AFTER STORAGE....120
    HANDLING OF BATTERY....121
      PRECAUTIONS FOR CHARGING BATTERY....121
      REMOVAL AND INSTALLATION OF BATTERY....121
      STARTING ENGINE WITH BOOSTER CABLES....121
        BEFORE CONNECTING BOOSTER CABLES....121
        CONNECTING BOOSTER CABLES....122
        STARTING ENGINE....122
        DISCONNECTING BOOSTER CABLES....122
    TROUBLESHOOTING....123
      ELECTRICAL SYSTEM....123
      ENGINE....124
      CHASSIS....125
        TRANSMISSION....125
        DRIVE AXLES....125
        WHEEL BRAKES....125
        PARKING BRAKE....125
        STEERING....125
        EQUIPMENT HYDRAULIC SYSTEM....125
  MAINTENANCE -- SECTION 3....127
    PERIODIC MAINTENANCE....128
    MAINTENANCE GUIDELINES....128
    OUTLINES OF SERVICE....129
      LUBRICATION WHEN SHIPPED....129
      RELATING TO ENGINE....130
        ENGINE OIL....130
        COOLANT....130
        DIESEL FUEL....130
      RELATING TO HYDRAULIC SYSTEM....130
      RELATING TO ELECTRICAL SYSTEM....130
      RELATING TO LUBRICATION....131
      BLEEDING AIR....131
        BLEEDING AIR FROM HYDRAULIC TANK....131
        BLEEDING AIR FROM THE WHEEL BRAKE HYDRAULIC CIRCUIT....132
        BLEEDING AIR FROM FUEL SYSTEM....133
    WEAR PARTS REPLACEMENT....135
    PERIODICAL PART REPLACEMENT....135
    LUBRICANTS, FUEL AND COOLANT....136
      PROPER SELECTION TABLE....136
        ENGINE OIL....137
          Normal Operation....137
          Arctic Operation....137
        AXLE OIL....138
        GREASE....138
        DIESEL FUEL....138
        COOLANT....138
    SCHEDULED MAINTENANCE GUIDE....145
    OIL FILLER AND LEVEL GAUGE POSITIONS....150
    INITIAL 250 HOURS SERVICE ONLY....150
      TRANSMISSION OIL FILTER....150
    WHEN REQUIRED....151
      COOLANT ADDITIVE CONCENTRATION - DCA4....151
      AIR CLEANER ELEMENT....151
        CHECKING....151
        CLEANING OR REPLACING OUTER ELEMENT....152
        REPLACING INNER ELEMENT....152
        CLEANING OUTER ELEMENT....153
      TRANSMISSION OIL....154
      RADIATOR CORE....154
      WINDSHIELD WASHER TANKS....155
      DRIVE AXLE OIL....155
      DRIVE AXLE HOUSING BREATHERS....156
      LUBRICATING....157
      BUCKET BOLT-ON CUTTlNG EDGE - IF EQUIPPED....159
      BUCKET TEETH - IF EQUIPPED....159
        BUCKET IS EQUIPPED WITH BOLT-ON TEETH....159
        BUCKET IS EQUIPPED WITH WELDED ON OR REPLACEABLE TIP TEETH....160
      PARKING BRAKE....161
        INSPECTION....161
        ADJUSTMENT....161
      LENGTH OF LEVER....162
      AIR CONDITIONER CONDENSER - IF EQUIPPED....162
      AIR CONDITIONER REFRIGERANT CHARGE - IF EQUIPPED....163
      STEERING....164
      HYDRAULIC SYSTEM....164
      SERVICE METER....164
    CHECK BEFORE STARTING....165
    EVERY 50 HOURS SERVICE....165
      FUEL TANK....165
      TIRES....165
    EVERY 100 HOURS SERVICE....165
      HYDRAULIC TANK....165
      LUBRICATING....166
      CAB AIR FILTER - IF EQUIPPED....166
      AIR CONDITIONER FILTER - IF EQUIPPED....166
      TRANSMISSION CASE....167
    EVERY 250 HOURS SERVICE....168
      LUBRICATING....168
      WHEEL HUB BOLTS....171
      ENGINE OIL PAN AND FILTER....171
      BATTERY ELECTROLYTE....172
      AIR INTAKE SYSTEM....173
      AIR CONDITIONER COMPRESSOR DRIVE BELT - IF EQUIPPED....173
      COOLANT FILTER....174
    EVERY 500 HOURS SERVICE....175
      LUBRICATING....175
      FUEL FILTERS....175
        GENERAL....175
        REPLACEMENT....175
      TRANSMISSION OIL FILTER....177
      ANTIFREEZE CONCENTRATION....177
      AIR DRYER - IF EQUIPPED....178
    EVERY 1000 HOURS SERVICE....178
      LUBRICATING....178
      TRANSMISSION CASE BREATHER....180
      TRANSMISSION OIL AND STRAINER....180
      ENGINE VALVES....181
      DRIVE BELT....185
      DRIVE BELT, TENSIONER BEARING AND FAN HUB....185
    EVERY 2000 HOURS SERVICE....187
      DRIVE AXLES....187
      HYDRAULIC TANK BREATHER....188
      HYDRAULIC TANK AND FILTER....189
      BRAKE DISC....190
      VIBRATION DAMPER....190
      COOLING SYSTEM....191
      AIR CONDITIONER FILTER - IF EQUIPPED....193
      ACCUMULATOR....193
  SPECIFICATIONS -- SECTION 4....195
    GENERAL SPECIFICATIONS....196
    STANDARD TIGHTENING TORQUES....201
      STANDARD TIGHTENING TORQUE OF BOLTS AND NUTS....201
      TIGHTENING TORQUE OF SPLIT FLANGE BOLTS....201
      TIGHTENING TORQUE FOR NUTS OF FLARED FllTlNGS....202
    UNIT CONVERSIONS....203
      AREA....204
      DENSITY (Mass Density)....204
      FORCE....205
      FORCE PER LENGTH....205
      HEAT....205
      LENGTH....206
      MASS (WEIGHT)....206
      POWER....207
      PRESSURE....207
      TEMPERATURE....207
      TEMPERATURE INTERVAL OR TOLERANCE....208
      VOLUME....208
      TORQUE....209
      VELOCITY....209
CEBMW19020 - Wheel Loader WA320-1LC Shop Manual....212
  CONTENTS....218
  10 ENGINE....232
    12 TESTING AND ADJUSTING....232
      STANDARD VALUE TABLE ....233
      TOOL LIST FOR TESTING AND ADJUSTING ....236
      VALVE CLEARANCE....238
      FUEL INJECTION TIMING ....239
      ENGINE OIL PRESSURE AND  TEMPERATURE ....240
      BLOW-BY PRESSURE ....242
      EXHAUST GAS COLOR ....243
      ACCELERATOR PEDAL, OPERATING  FORCE AND OPERATING ANGLE ....244
    13 DISASSEMBLY AND ASSEMBLY....248
      STARTING MOTOR ....250
        REMOVAL....250
        INSTALLATION....250
      ALTERNATOR ....251
        REMOVAL....251
        INSTALLATION....251
      OIL COOLER....252
        REMOVAL....252
        INSTALLATION....252
      FUEL INJECTION PUMP....253
        REMOVAL....253
        INSTALLATION....253
      WATER PUMP....254
        REMOVAL....254
        INSTALLATION....254
      INJECTORS....255
        REMOVAL....255
        INSTALLATION....256
      TURBOCHARGER ....257
        REMOVAL....257
        INSTALLATION....258
      CYLINDER HEAD....259
        REMOVAL....259
        INSTALLATION....260
      RADIATOR ....261
        REMOVAL....261
        INSTALLATION....263
      ENGINE....265
        REMOVAL....265
        INSTALLATION....270
      FUEL TANK ....275
        REMOVAL ....275
        INSTALLATION....276
    14 MAINTENANCE STANDARD....278
      ENGINE MOUNT ....279
      RADIATOR AND TORQUE CONVERTER OIL COOLER ....280
  20 POWER TRAIN....282
    21 STRUCTURE AND FUNCTION....282
      GENERAL....283
        HYDRAULIC CIRCUIT FOR POWER TRAIN....287
        HYDRAULIC CIRCUIT DIAGRAM FOR POWER TRAIN....288
      TORQUE CONVERTER AND TRANSMISSION PIPING....289
      TORQUE CONVERTER CHARGING PUMP ....290
      TORQUE CONVERTER....291
      TORQUE CONVERTER OIL FILTER....292
      TRANSMISSION ....293
        CLUTCH PACK....295
          FORWARD AND REVERSE CLUTCH....295
          1ST, 3RD CLUTCH....295
          2ND, 4TH CLUTCH....296
        CONTROL VALVE....297
        SOLENOID VALVE....298
        UPPER VALVE....299
        LOWER VALVE....300
        PRIORITY AND MAIN REGULATOR VALVE....301
        MAIN REGULATOR VALVE....302
        TORQUE CONVERTER OIL OUTLET VALVE....303
        PILOT REDUCING VALVE....304
        SOLENOID VALVE....305
        FILL VALVE....306
        MODULATING RELIEF VALVE, ACCUMULATOR VALVE, QUICK RETURN VALVE....308
        DIRECTIONAL SPOOL....312
        EMERGENCY MANUAL SPOOL....313
        PILOT OIL FILTER....314
      AXLE MOUNT....315
      AXLE....317
        FRONT....317
        REAR....318
      DIFFERENTIAL....319
      FINAL DRIVE....320
      TIRE AND WHEEL....321
    22 TESTING AND ADJUSTING....322
      STANDARD VALUE TABLE ....323
      TOOL LIST FOR TESTING AND ADJUSTING ....324
      ENGINE STALL SPEED....325
      MEASURING OIL PRESSURE OF TORQUE CONVERTER AND TRANSMISSION....327
      SHIFT LEVER ....330
      METHOD FOR OPERATION OF  EMERGENCY MANUAL SPOOL ....331
      TIRE AND WHEEL....333
      TROUBLESHOOTING....334
        PRECAUTIONS WHEN TROUBLESHOOTING....335
        METHOD OF READING TROUBLESHOOTING TABLES....337
        PREVENTING RECURRENCE OF TROUBLE....339
        CHECKS BEFORE TROUBLESHOOTING....340
        JUDGEMENT ON POWER TRAIN....341
        TROUBLESHOOTING TABLE....343
        1. Machine does not move.....343
        2. Machine speed is low, thrust is weak, gradeability falls off.....345
        3. Large shock when moving off or changing gear.....347
        4. Large time lag when moving off or changing gear.....348
        5. Oil temperature in torque converter is high.....349
    23 DISASSEMBLY AND ASSEMBLY ....350
      TORQUE CONVERTER CHARGING PUMP ....352
        REMOVAL....352
        INSTALLATION....352
      TRANSMISSION,  TORQUE CONVERTER ....353
        REMOVAL....353
        INSTALLATION....359
      TORQUE CONVERTER ....365
        DISASSEMBLY ....365
        ASSEMBLY....368
      TRANSMISSION....371
        DISASSEMBLY....371
        ASSEMBLY....378
      CLUTCH PACK....389
        DISASSEMBLY....389
          FORWARD-REVERSE CLUTCH PACK....389
          1ST-3RD SPEED CLUTCH PACK....391
          2ND-4TH SPEED CLUTCH PACK....393
        ASSEMBLY....395
          FORWARD-REVERSE CLUTCH PACK....396
          1ST-3RD SPEED CLUTCH PACK....401
          2ND-4TH SPEED CLUTCH PACK....405
      TRANSMISSION CONTROL VALVE ....409
        REMOVAL ....409
        INSTALLATION....410
      TRANSMISSION SOLENOID VALVE....416
        DISASSEMBLY....416
        ASSEMBLY....416
      DIFFERENTIAL....417
        DISASSEMBLY....417
        ASSEMBLY....421
      FRONT AXLE....432
        REMOVAL....432
        INSTALLATlON....434
      REAR AXLE ....436
        REMOVAL....436
        INSTALLATION....439
      DRIVE SHAFT ....442
        DISASSEMBLY....442
        ASSEMBLY....444
      AXLE HOUSING ....446
        DISASSEMBLY....446
        ASSEMBLY....451
    24 MAINTENANCE STANDARD ....458
      ENGINE AND TRANSMISSION MOUNT....459
      TORQUE CONVERTER CHARGING PUMP ....461
      TORQUE CONVERTER....462
      TRANSMISSION....463
      TRANSMISSION CONTROL VALVE....466
        UPPER VALVE....466
        LOWER VALVE....468
      SOLENOID VALVE....469
      TRANSMISSION CLUTCH....470
      DIFFERENTIAL....473
      FINAL DRIVE....475
      DRIVE SHAFT....477
      AXLE MOUNT....478
      AXLE....480
  40 STEERING SYSTEM....484
    41 STRUCTURE AND FUNCTION....484
      HYDRAULIC PIPING....485
      HYDRAULIC CIRCUIT SCHEMATICS....485
      HYDRAULIC CIRCUIT DIAGRAM....487
        2-SPOOL....487
        3-SPOOL (WITH GROUND STEERING) DRJEN....488
        3-SPOOL (WITH GROUND DRIVEN STEERING, SECURITY VALVE)....489
      STEERING CONTROL SYSTEM ....490
        STEERING VALVE (ORBITROL VALVE) ....490
        PRIORITY VALVE....497
        HAND PUMP AND SLEEVE....500
        CUSHION VALVE....502
        GROUND DRIVEN STEERING PUMP....503
        DIVERTER VALVE....504
      STEERING COLUMN ....507
      STEERING CYLINDER MOUNT AND CENTER HINGE PIN ....508
    42 TESTING AND ADJUSTING....510
      STANDARD VALUE TABLE FOR CHASSIS....511
      TOOL LIST....511
      STEERING WHEEL....512
        PLAY....512
        OPERATING FORCE....513
        OPERATING TIME - LOCK TO LOCK....514
      STEERING OIL PRESSURE....515
      TROUBLESHOOTING....516
        STEERING SYSTEM....517
        1. Steering wheel does not turn.....517
        2. Steering wheel is sluggish.....518
        3. Steering wheel moves unsteadily or is subjected to large shock.....519
    43 DISASSEMBLY AND ASSEMBLY....520
      STEERING VALVE....521
        REMOVAL....521
        INSTALLATION....523
        DISASSEMBLY....526
        ASSEMBLY....529
      PRIORITY VALVE....534
        REMOVAL....534
        INSTALLATION....536
      STEERING CYLINDER....538
        REMOVAL....538
        INSTALLATION....539
        DISASSEMBLY....540
        ASSEMBLY....542
      CENTER HINGE PIN....545
        REMOVAL....545
        INSTALLATlON....550
    44 MAINTENANCE STANDARD....556
      STEERING COLUMN ....557
      STEERING CYLINDER MOUNT....558
      CENTER HINGE PIN....558
      STEERING PUMP....561
      PRIORITY VALVE....562
      GROUND DRIVEN STEERING....563
  50 BRAKE SYSTEM....564
    51 STRUCTURE AND FUNCTION....564
      BRAKE CONTROL SYSTEM....565
        SYSTEM DIAGRAM....565
        BRAKE CIRCUIT DIAGRAM....566
        BRAKE CIRCUIT SCHEMATICS....567
      CHARGE VALVE....568
      ACCUMULATOR....572
      BRAKE VALVE....573
        PRESSURE CONTROL VALVE....574
        SAFETY VALVE....575
      BRAKE....576
      PARKING BRAKE....577
      BRAKE CALIPER....578
    52 TESTING AND ADJUSTING....580
      STANDARD VALUE TABLE....581
      TOOL LIST....582
      BRAKE PEDAL....583
      BRAKE PEDAL LINKAGE....584
      BRAKE PERFORMANCE....585
      BRAKE PISTON LEAKAGE....586
      BRAKE DISC....587
      AIR BLEEDING....588
        ACCUMULATOR CIRCUIT....588
        FRONT AXLE BRAKE CIRCUIT....589
        REAR AXLE BRAKE CIRCUIT....589
      PARKING BRAKE....590
        PERFORMANCE....590
        CHECKING AND ADJUSTING....591
        CLEARANCE....593
    53 DISASSEMBLY AND ASSEMBLY....594
      BRAKE VALVE....595
        REMOVAL....595
        INSTALLATION....596
        DISASSEMBLY....597
        ASSEMBLY....598
      PARKING BRAKE....599
        REMOVAL....599
        INSTALLATION....601
      PARKING BRAKE PAD....603
        REMOVAL....603
        INSTALLATION....603
      ACCUMULATOR....604
        REMOVAL....604
        INSTALLATION....604
        DISASSEMBLY....605
        ASSEMBLY....605
    54 MAINTENANCE STANDARD....608
      BRAKE....609
      PARKING BRAKE....610
      BRAKE VALVE....611
  60 WORK EQUIPMENT SYSTEM....612
    61 STRUCTURE AND FUNCTION....612
      HYDRAULIC PIPING....613
      HYDRAULIC CIRCUIT DIAGRAMS....614
      HYDRAULIC TANK....616
        OIL FILTER BYPASS VALVE....617
        BREATHER....618
      HYDRAULIC AND STEERING PUMPS....619
      HYDRAULIC VALVES....620
        SECURITY VALVE....620
        PRIORITY VALVE....621
        RELIEF VALVE....622
        SAFETY VALVE (WITH SUCTION VALVE)....623
        SUCTION VALVE....624
        MAIN CONTROL VALVE....625
          2-SPOOL....625
          3-SPOOL....627
          OPERATION....629
      HYDRAULIC CYLINDER....635
        LIFT CYLINDER....635
        DUMP CYLINDER....635
        STEERING CYLINDER....635
      BUCKET LINKAGE....636
      WORK EQUIPMENT LEVER LINKAGE....638
    62 TESTING AND ADJUSTING....640
      STANDARD VALUE TABLE ....642
      TOOL LIST....643
      DUMP AND LIFT CONTROL LEVERS ....644
      HYDRAULIC CIRCUIT FLUSHING ....646
      HYDRAULIC PRESSURE ....649
      LIFT ARM AND BUCKET ....651
      HYDRAULIC DRIFT OF LIFT ARM  AND BUCKET ....653
      BUCKET POSITIONER....654
      BOOM KICK-OUT ....656
      TROUBLESHOOTING....658
        TROUBLESHOOTING TABLES....659
        1. Lift arm does not rise.....659
        2. Lift arm moves slowly or does not have sufficient lifting power.....660
        3. Lift arm movement becomes slow after it reaches a certain height.....661
        4. Bucket cannot be held down with lift arm cylinder.....661
        5. Lift arm has large hydraulic drift.....661
        6. Lift arm movement is unsteady during work.....661
        7. Lift arm descends momentarily when control lever is shifted from "Hold" to "Raise".....661
        8. Bucket does not tilt back.....662
        9. Bucket moves slowly or has insufficient tilt back power.....663
        10. Bucket movement becomes slow during tilt back.....664
        11. Bucket cannot be held down by the dump cylinder.....664
        12. Bucket has large hydraulic drift.....664
        13. Bucket moves unsteadily when machine travels under load. (Main control valve in "Hold")....664
        14. Bucket dumps momentarily when control lever is shifted from "Hold" to "Tilt back".....664
        15. Control levers of lift arm and bucket move stiffly and sluggishly.....665
    63 DISASSEMBLY AND ASSEMBLY....666
      HYDRAULIC TANK ....667
        REMOVAL....667
        INSTALLATION....670
      HYDRAULIC FILTER ....672
        REMOVAL....672
        INSTALLATION....672
      HYDRAULIC & STEERING PUMP....673
        REMOVAL....673
        INSTALLATION....674
      MAIN CONTROL VALVE ....675
        REMOVAL....675
        INSTALLATION....677
        DISASSEMBLY....678
        ASSEMBLY....680
      DUMP CYLINDER....682
        REMOVAL....682
        INSTALLATION....684
      LlFT CYLINDER....685
        REMOVAL....685
        INSTALLATION....686
      HYDRAULIC CYLINDER....687
        DISASSEMBLY....687
        ASSEMBLY....689
      WORK EQUIPMENT....692
        REMOVAL....692
        INSTALLATION....695
      COUNTERWEIGHT....698
        REMOVAL....698
        INSTALLATION....698
    64 MAINTENANCE STANDARD....700
      HYDRAULIC AND STEERING PUMPS....701
      GROUND DRIVEN STEERING PUMP....702
      PRIORITY VALVE....703
      MAIN CONTROL VALVE....705
        2-SPOOL....705
        3-SPOOL....707
      CYLINDER....709
        STEERING CYLINDER....709
        LIFT CYLINDER....709
        DUMP CYLINDER....709
      BUCKET LINKAGE....711
      BUCKET....715
        WITH TOOTH....715
        WITH B.O.C.....715
      BUCKET POSITIONER AND BOOM KICK-OUT....716
  80 ELECTRIC AND ELECTRONIC SYSTEM....718
    81 STRUCTURE AND FUNCTION....718
      ELECTRICAL FOLDOUT....719
      ENGINE STARTING CIRCUIT....720
      SAFETY RELAY....721
      ENGINE STOP CIRCUIT....722
      ELECTRICAL TRANSMISSION CONTROL....723
        COMBINATION SWITCH....724
        TRANSMISSION CUT-OFF SELECTOR SWITCH....725
        NEUTRALIZER RELAY....726
      KICK-DOWN SWITCH....727
      KICK-DOWN ELECTRICAL CIRCUIT....728
      BUCKET POSITIONER AND BOOM KICK-OUT....736
      PROXIMITY SWITCH....738
      ELECTRONIC VEHICLE MONITORING SYSTEM (EVMS)....742
        MONITOR PANEL....743
        INDICATION ON MONITOR PANEL....744
        SENSORS, SWITCHES....746
          SENSOR, SWITCH ACTUATION TABLE....746
          BRAKE PRESSURE SWITCH....747
          BRAKE DIFFERENTIAL PRESSURE WARNING SWITCH....747
          COOLANT LEVEL SENSOR....748
          TORQUE CONVERTER OIL TEMPERATURE SENSOR....748
          ROTATIONAL SPEED SENSOR....749
          FUEL LEVEL SENSOR....750
    82 TESTING AND ADJUSTING....752
      SPEEDOMETER MODULE....754
      TROUBLESHOOTING....756
        PRECAUTION WHEN HANDLING CONNECTOR....757
        CONNECTOR TERMINAL NUMBERS....759
          POSITION OF CONNECTORS FOR TROUBLESHOOTING....764
        ELECTRICAL CIRCUIT SYSTEM....769
          ENGINE STARTING CIRCUIT SYSTEM....769
          ENGINE STOP CIRCUIT SYSTEM....770
          TRANSMISSION CONTROL AND PARKING BRAKE SYSTEM....771
        ELECTRICAL CN AND THREE DIMENSIONAL VIEW DIAGRAM....772
        METHOD OF USING YES-NO TROUBLESHOOTING FLOW CHART....773
        TROUBLESHOOTING TABLES....776
          E-1 ENGINE DOES NOT START.....777
          E-2 ENGINE DOES NOT STOP.....778
          E-3 ENGINE STOPS WHEN MACHINE IS TRAVELING.....778
          E-4 TRANSMISSION DOES NOT RETURN TO NEUTRAL.....779
          E-5 TRANSMISSION DOES NOT WORK NORMALLY.....780
          E-6 KICK-DOWN SWITCH DOES NOT WORK.....799
          E-7 KICK-DOWN ONLY WORKS WHEN KICK-DOWN SWITCH IS ON.....801
          E-8 KICK-DOWN OPERATION IS NOT CANCELED.....802
          E-9 KICK-DOWN WORKS BY MISTAKE WHEN TRAVELING IN F2.....803
    83 DISASSEMBLY AND ASSEMBLY....804
      MACHINE MONITOR....805
        REMOVAL....805
        INSTALLATION....806
  90 OTHER....808
    93 DISASSEMBLY AND ASSEMBLY....808
      CAB....809
        REMOVAL....809
        INSTALLATION....809
      CAB....810
    97 GEAR PUMP....812
      GENERAL....813
        PRINCIPLE OF OPERATION....814
        PRESSURE LOADED TYPE GEAR PUMP....817
        FIXED SIDE PLATE NPE GEAR PUMP....819
      SA SERIES....820
        STRUCTURE....820
        TESTING AND ADJUSTING....824
        DISASSEMBLY....827
        ASSEMBLY....831
        MAINTENANCE STANDARD....836
    99 METRIC CONVERSIONS....838
    
Komatsu Wheel Loader WA320-LC Repair Service Manual

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