Complete service repair manual with Electrical Wiring Diagrams for Komatsu Hydraulic Excavator PC400LC-6LK, PC400HD-6LK, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.

Komatsu Hydraulic Excavator PC400LC-6LK, PC400HD-6LK avance 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.

CEAM002901 - Hydraulic Excavator PC400LC-6LK, PC400HD-6LK avance Operation & Maintenance Manual.pdf
CEBM002502 - Hydraulic Excavator PC400LC-6LK, PC400HD-6LK avance Shop Manual.pdf

PRODUCT DETAILS:
Total Pages: 1,123 pages
File Format: PDF
Language: English

CEAM002901 - Hydraulic Excavator PC400LC-6LK, PC400HD-6LK avance Operation & Maintenance Manual....2
  COVER....2
  INTRODUCTION....8
    FOREWORD....9
    SAFETY INFORMATION....9
    INTRODUCTION....10
      INTENDED USE....10
      FEATURES....10
      BREAKING IN THE MACHINE....10
    LOCATION OF PLATES, TABLE TO ENTER P.I.N. AND DISTRIBUTOR....11
      P.I.N. PLATE LOCATION....11
      ENGINE SERIAL NO. PLATE LOCATION....11
      TABLE TO ENTER NUMBERS AND DISTRIBUTOR....11
  TABLE OF CONTENTS....12
  SAFETY....20
    WARNING LABELS....21
    GENERAL PRECAUTIONS....26
      SAFETY RULES....26
      SAFETY FEATURES....26
      UNAUTHORIZED MODIFICATION....26
      INSIDE OPERATOR’S COMPARTMENT....26
      CLOTHING AND PERSONAL PROTECTIVE ITEMS....27
      ALWAYS APPLY LOCK WHEN LEAVING OPERATOR’S SEAT....27
      MOUNTING AND DISMOUNTING....27
      INJURY FROM WORK EQUIPMENT....28
      FIRE PREVENTION FOR FUEL AND OIL....28
      PRECAUTIONS AT HIGH TEMPERATURES....28
      ASBESTOS DUST HAZARD PREVENTION....29
      FIRE EXTINGUISHER AND FIRST AID KIT....29
      CAB GLASS....29
      WINDOW WASHER FLUID....29
      ESCAPE FROM FIRE....29
      PROTECTION AGAINST FALLING OR FLYING OBJECTS....30
      MACHINES WITH ACCUMULATOR....30
      PRECAUTIONS FOR ATTACHMENTS....30
      INDOOR VENTILATION....31
      EMERGENCY EXIT FROM OPERATORS CAB....31
    PRECAUTIONS DURING OPERATION....32
      BEFORE STARTING ENGINE....32
        SAFETY AT WORK SITE....32
        FIRE PREVENTION....32
        VENTILATION FOR ENCLOSED AREAS....32
        IN OPERATOR’S CAB....33
        PRECAUTIONS FOR MIRROR AND LIGHTS....33
        WHEN STARTING ENGINE....33
      OPERATING MACHINE....34
        WHEN STARTING ENGINE....34
        CHECK DIRECTION BEFORE STARTING MACHINE....34
        CHECK THAT NO ONE IS IN AREA BEFORE SWINGING OR TRAVELING IN REVERSE....34
        NEVER LET ANYONE RIDE ON ATTACHMENT....34
        PRECAUTIONS WHEN TRAVELING....35
        OPERATE CAREFULLY ON SNOW....35
        TRAVELING ON SLOPES....36
        PROHIBITED OPERATIONS....36
        PRECAUTIONS FOR OPERATION....37
        DO NOT GO CLOSE TO HIGH VOLTAGE CABLES....37
        WORKING ON LOOSE GROUND....38
        OPERATING ON SLOPES....38
        PARKING THE MACHINE....38
        PRECAUTIONS IN COLD WEATHER....39
      TRANSPORTATION....40
        LOADING AND UNLOADING....40
        PRECAUTIONS WHEN LIFTING....40
        SHIPPING....41
      BATTERY....42
        BATTERY HAZARD PREVENTION....42
        STARTING WITH BOOSTER CABLES....42
        CHARGING BATTERY....43
      TOWING....44
        PRECAUTIONS WHEN TOWING....44
      BUCKET WITH HOOK....45
        PROHIBITED OPERATIONS....45
        PRECAUTIONS WHEN INSTALLING AND OPERATING BUCKET WITH HOOK....45
        BEFORE CARRYING OUT MAINTENANCE....46
          CONTACT WHEN THERE IS FAILURE....46
          WARNING TAG....46
          CLEAN BEFORE INSPECTION OR MAINTENANCE....46
          NEAT CLEAN WORK PLACE....46
          FOLLOW LEADER IN OPERATIONS WITH OTHER WORKERS....46
          RADIATOR COOLANT LEVEL....47
          DO NOT DISASSEMBLE RECOIL SPRING....47
          PROPER TOOLS....47
          STOP ENGINE PRIOR TO INSPECTION AND MAINTENANCE....47
          SUPPORT FOR WORK EQUIPMENT....48
          PERIODIC REPLACEMENT OF CRITICAL SAFETY PARTS....48
          USE OF LIGHTING....48
          FIRE PREVENTION....48
          RULES TO FOLLOW WHEN ADDING FUEL OR OIL....49
    PRECAUTIONS FOR MAINTENANCE....46
      DURING MAINTENANCE....50
        PERSONNEL....50
        REMOVAL, INSTALLATION AND STORAGE OF ATTACHMENTS....50
        WORK UNDER THE MACHINE....50
        NOISE....50
        WHEN WORKING ON MACHINE....50
        LOCK INSPECTION COVERS....50
        TWO WORKERS FOR MAINTENANCE WHEN ENGINE IS RUNNING....51
        DO NOT DROP TOOLS OR PARTS INSIDE MACHINE....51
        FLYING PIECES WITH HAMMER WORK....51
        KEEP THE MACHINE CLEAN....51
        WELDING REPAIRS....52
        REMOVE BATTERY TERMINALS....52
        ACTION WHEN ABNORMALITY IS FOUND DURING INSPECTION....52
        RULES TO FOLLOW WHEN ADDING FUEL....52
        WHEN ADJUSTING TRACK TENSION....53
        HANDLING HIGH PRESSURE HOSES....53
        WITH HIGH PRESSURE OIL....53
        WHEN CARRYING OUT MAINTENANCE AT HIGH TEMPERATURE/PRESSURE....54
        WASTE MATERIALS....54
        CHECKS AFTER INSPECTION AND MAINTENANCE....54
        MAINTENANCE FOR AIR CONDITIONER....54
  OPERATION....55
    GENERAL....56
      GENERAL VIEW OF MACHINE....56
      GENERAL VIEW OF OPERATORS COMPARTMENT....57
      GENERAL VIEW OF MONITOR PANEL....58
    EXPLANATION OF COMPONENTS....59
      MACHINE MONITOR....59
        MONITOR LIGHT GROUP....61
        METER DISPLAY PORTION....63
        SWITCHES....66
      SWITCHES....69
      CONTROL LEVERS AND PEDALS....74
      ATTACHMENT CONTROLS....77
      OPERATOR’S SEAT....79
        SEAT ADJUSTMENT....79
      SEAT BELT....81
        FASTENING AND REMOVING....81
        ADJUST THE BELT LENGTH....81
      MONITOR PANEL....82
        ADJUSTMENT ANGLE....82
      ROOF VENT....82
        WHEN OPENING....82
        WHEN CLOSING....82
      FRONT WINDOW....83
        WHEN OPENING....83
        WHEN CLOSING....84
        FRONT BOTTOM WINDOW....85
      DOOR LOCK....85
      CAP, COVER WITH LOCK....86
        METHOD OF OPENING AND CLOSING LOCK CAP....86
        METHOD OF OPENING AND CLOSING COVER LOCK....86
      OPERATOR EASE....87
        HOT AND COOL BOX....87
        STORAGE BOX....87
        ASHTRAY....87
      AIR CONDITIONER....88
        GENERAL LOCATIONS ON CONTROL PANEL....88
        PRECAUTIONS WHEN USING AIR CONDITIONER....90
        CHECK, MAINTAIN AIR CONDITIONER....90
      CAB HEATER....91
        GENERAL LOCATION....91
        HEATER FAN SWITCH....91
        VENT SELECTOR SWITCH....92
        DEFROSTER SELECTOR LEVER....92
        PREPARATION FOR HEATER....93
      AM/FM RADIO....94
        EXPLANATION OF COMPONENTS....94
        METHOD OF OPERATION....96
        PRECAUTIONS WHEN USING....98
        SPECIFICATIONS....98
      ELECTRIC POWER TAKE OUT ADAPTER....98
      FUSE....99
      FUSIBLE LINK....100
      CONTROLLERS....100
      TOOL BOX....100
      GREASE GUN HOLDER....100
      HANDLING ACCUMULATOR....101
        RELEASING PRESSURE ON MACHINE EQUIPPED WITH ACCUMULATOR....101
    OPERATION....102
      CHECK BEFORE STARTING ENGINE....102
        WALK AROUND CHECK....102
        CHECK BEFORE STARTING....104
        ADJUSTMENT OF MIRRORS....107
        ADJUST OPERATOR’S SEAT....107
        ADJUST SEAT BELT....107
        ADJUST ARM RESTS....107
        ADJUST MONITOR PANEL....107
        OPERATIONS AND CHECKS BEFORE STARTING ENGINE....108
      STARTING ENGINE....110
        NORMAL STARTING....110
        STARTING IN COLD WEATHER....111
      OPERATIONS AND CHECKS AFTER STARTING ENGINE....113
        WHEN NORMAL....113
        IN COLD AREAS (AUTOMATIC WARM UP OPERATION)....116
      MOVING MACHINE....119
        MOVING MACHINE FORWARD....119
        MOVING MACHINE REARWARD....120
      STEERING MACHINE....122
        STEERING (CHANGING DIRECTION)....122
      STOPPING MACHINE....124
      SWINGING....125
      OPERATION OF WORK EQUIPMENT....126
      HANDLING ACTIVE MODE....127
      HANDLING WORKING MODE....128
        WORKING MODE....128
        POWER MAX., SWIFT SLOW DOWN....128
      PROHIBITIONS FOR OPERATION....130
        PROHIBITED OPERATIONS USING SWING FORCE....130
        PROHIBITED OPERATIONS USING TRAVEL FORCE....130
        PRECAUTIONS WHEN OPERATING CYLINDERS TO END OF STROKE....130
        PROHIBITED OPERATIONS USING DROPPING FORCE OF BUCKET....131
        PROHIBITED OPERATIONS USING DROPPING FORCE OF MACHINE....131
        DIGGING ROCKY GROUND....131
        SUDDEN LEVER SHIFTING DURING HI SPEED TRAVEL PROHIBITED....131
      PRECAUTIONS FOR OPERATION....132
        PRECAUTIONS WHEN TRAVELING....132
        PRECAUTIONS AT HI SPEED TRAVEL....132
        PERMISSIBLE WATER DEPTH....132
      PRECAUTIONS WHEN TRAVELING ON HILLS....133
        BRAKING WHEN TRAVELING DOWNHILL....134
        IF SHOES SLIP....134
        IF ENGINE STOPS....134
        PRECAUTIONS ON SLOPES....134
      HOW TO ESCAPE FROM MUD....135
        WHEN ONE SIDE IS STUCK....135
        WHEN BOTH SIDES ARE STUCK....135
      WORK POSSIBLE USING EXCAVATOR....136
        BACKHOE WORK....136
        SHOVEL WORK....136
        DITCHING WORK....136
        LOADING WORK....137
      BUCKET REPLACEMENT OR INVERSION....138
        REPLACEMENT....138
        INVERSION....139
      PARKING MACHINE....140
      CHECK AFTER FINISHING WORK....142
      STOPPING ENGINE....142
      CHECK AFTER STOPPING ENGINE....142
      LOCKING....143
    TRANSPORTATION....144
      TRANSPORTATION PROCEDURE....144
      LOADING, UNLOADING WORK ON TRAILERS....144
        LOADING....145
        UNLOADING....146
        SECURING MACHINE....148
        REMOVAL, INSTALLATION OF MIRRORS....149
        METHOD OF LIFTING MACHINE....149
      TRACK FRAME GAUGE....151
        REDUCING TRACK GAUGE....151
        INCREASING TRACK GAUGE....151
    COLD WEATHER OPERATION....152
      PRECAUTIONS FOR LOW TEMPERATURE....152
        FUEL AND LUBRICANTS....152
        COOLANT....152
        BATTERY....153
      PRECAUTIONS AFTER COMPLETION OF WORK....154
      AFTER COLD WEATHER....154
    LONG TERM STORAGE....155
      BEFORE STORAGE....155
      DURING STORAGE....155
      AFTER STORAGE....155
      MACHINE START AFTER LONG TERM STORAGE....156
    TROUBLESHOOTING....157
      PHENOMENA THAT ARE NOT FAILURES....157
      METHOD OF TOWING DISABLED MACHINE....157
      USING MACHINE FOR LIGHT WEIGHT TOWING....157
      PRECAUTIONS ON PARTICULAR JOB SITES....157
      DISCHARGED BATTERY....158
        REMOVING AND INSTALLING BATTERY....158
        PRECAUTIONS FOR CHARGING BATTERY....158
        STARTING ENGINE WITH BOOSTER CABLE....159
      OTHER TROUBLE....161
        ELECTRICAL SYSTEM....161
        CHASSIS....162
        ENGINE....163
        ELECTRONIC CONTROL SYSTEM....164
  MAINTENANCE....165
    GUIDES TO MAINTENANCE....166
    OUTLINES OF SERVICE....168
      OUTLINE OF OIL, FUEL, COOLANT....168
        OIL....168
        FUEL....168
        COOLANT....169
        GREASE....169
        STORING OIL AND FUEL....169
        FILTERS....169
        RELATING TO ELECTRICAL SYSTEM....169
      OUTLINE OF HYDRAULIC SYSTEM....170
    WEAR PARTS LIST....171
    USE OF FUEL, COOLANT AND LUBRICANTS....172
      PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS....172
        ABBREVIATIONS....172
      ENGINE OIL SPECIFICATIONS....173
        NORMAL OPERATION....173
        ARCTIC OPERATION....173
      DAMPER CASE, SWING MACHINERY CASE, TRACK FRONT IDLERS, TRACK ROLLERS, TOP CARRIER ROLLERS AND HYD.....174
      FINAL DRIVE OIL SPECIFICATIONS....174
      FUEL SYSTEM....174
      COOLING SYSTEM....175
        GENERAL....175
        WATER....175
        ANTIFREEZE....175
        INHIBITORS/CONDITIONERS....176
        SUPPLEMENTAL COOLANT ADDITIVES....176
    STANDARD TIGHTENING TORQUES....180
      INTRODUCTION OF NECESSARY TOOLS....180
      BOLT IDENTIFICATION CHART....181
    PERIODIC REPLACEMENT OF CRITICAL PARTS....182
    MAINTENANCE SCHEDULE CHART....183
      MAINTENANCE INTERVAL WHEN USING BREAKER....185
    SERVICE PROCEDURE....186
      INITIAL 250 HOURS SERVICE....186
        FUEL FILTER CARTRIDGE....186
        REPLACE ENGINE BYPASS FILTER CARTRIDGE....187
        ENGINE VALVE CLEARANCE....188
      WHEN REQUIRED....189
        CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT....189
        DRAIN, FLUSH AND REFILL COOLING SYSTEM....191
        CHECK AND TIGHTEN TRACK SHOE BOLTS....193
        CHECK AND ADJUST TRACK TENSION....193
        CHECK ELECTRICAL INTAKE AIR HEATER....195
        BUCKET TEETH REPLACEMENT....196
        ADJUST BUCKET CLEARANCE....198
        CHECK WINDOW WASHER FLUID, ADD FLUID....199
        CHECK, MAINTAIN AIR CONDITIONER....199
        REPLACE ADDITIONAL BREAKER FILTER ELEMENT....200
        CLEAN IN LINE FILTERS....202
      CHECK BEFORE STARTING....203
        CHECK COOLANT LEVEL, ADD COOLANT....203
        CHECK ENGINE OIL LEVEL, ADD OIL....203
        CHECK FUEL LEVEL, ADD FUEL....204
        CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL....204
        CHECK AIR CLEANER FOR CLOGGING....205
        CHECK ELECTRIC WIRING....205
        CHECK FUNCTION OF HORN....205
        CHECK FOR WATER/SEDIMENT IN FUEL FILTER, DRAIN....206
      EVERY 50 HOURS SERVICE....207
        GREASE LUBRICATION....207
      EVERY 100 HOURS SERVICE....209
        PREVIOUS MAINTENANCE....209
        LUBRICATION....209
        CHECK OIL LEVEL IN SWING MACHINERY CASE, ADD OIL....210
        DRAIN WATER AND SEDIMENT FROM FUEL TANK....210
      EVERY 250 HOURS SERVICE....211
        PREVIOUS MAINTENANCE....211
        CHECK OIL LEVEL IN FINAL DRIVE CASE, ADD OIL....211
        CHECK LEVEL OF BATTERY ELECTROLYTE....211
        CHANGE ENGINE OIL, REPLACE FILTER CARTRIDGE....212
        LUBRICATE SWING CIRCLE (3 POINTS)....214
        CHECK FAN BELT TENSION, ADJUST....214
        CHECK, ADJUST TENSION OF A/C COMPRESSOR BELT....215
      EVERY 500 HOURS SERVICE....216
        PREVIOUS MAINTENANCE....216
        FUEL FILTER CARTRIDGE....216
        CHECK SWING PINION GREASE LEVEL, ADD GREASE....217
        CLEAN AND INSPECT RADIATOR, OIL COOLER AND CONDENSER FINS....217
        CLEAN FILTERS OF AIR CONDITIONER....218
        REPLACE HYDRAULIC TANK BREATHER ELEMENT....218
        REPLACE HYDRAULIC FILTER ELEMENT....219
      EVERY 1000 HOURS SERVICE....220
        CHANGE OIL IN SWING MACHINERY CASE....220
        CHECK OIL LEVEL IN DAMPER CASE, ADD OIL....220
        REPLACE CORROSION RESISTOR CARTRIDGE....221
        REPLACE HYDRAULIC TANK RELIEF VALVE ELEMENT....222
        CHECK TIGHTENING PARTS OF TURBOCHARGER....222
        CHECK PLAY OF TURBOCHARGER ROTOR....222
      EVERY 2000 HOURS SERVICE....223
        CHANGE OIL IN FINAL DRIVE CASE....223
        CLEAN HYDRAULIC TANK STRAINER....223
        CLEAN ENGINE BREATHER....224
        CLEAN, CHECK TURBOCHARGER....224
        CHECK ALTERNATOR, STARTING MOTOR....224
        CHECK ENGINE VALVE CLEARANCE, ADJUST....224
        CHECK VIBRATION DAMPER....224
        CHECK, ADJUST FUEL INJECTION NOZZLES....224
      EVERY 4000 HOURS SERVICE....225
        CHECK WATER PUMP....225
        REPLACE FUEL INJECTION NOZZLE TIPS....225
      EVERY 5000 HOURS SERVICE....226
        CHANGE OIL IN HYDRAULIC TANK....226
  SPECIFICATIONS....230
    SPECIFICATIONS AND DIMENSIONS....231
      SPECIFICATIONS....231
      DIMENSIONS....233
        PC400LC-6LK....233
        PC400HD-6LK....245
  OPTIONS, ATTACHMENTS....254
    GENERAL PRECAUTIONS....255
      PRECAUTIONS RELATED TO SAFETY....255
      PRECAUTIONS WHEN INSTALLING ATTACHMENTS....256
    BUCKET WITH HOOK....257
      CHECKING FOR DAMAGE....257
      PROHIBITED OPERATIONS....257
      PRECAUTIONS DURING OPERATIONS....257
    MACHINES READY FOR ATTACHMENT....258
      GENERAL LOCATIONS....258
      HYDRAULIC CIRCUIT....261
        SWITCHING TO FILTER CIRCUIT....261
        CONNECTING HYDRAULIC CIRCUIT....261
        PATH OF OIL FLOW....262
      ATTACHMENT REMOVAL AND INSTALLATION....263
        PROCEDURE FOR REMOVAL....263
        PROCEDURE FOR INSTALLATION....263
      OPERATION....264
        WHEN USING BREAKER....264
        WHEN USING GENERAL ATTACHMENT....264
      LONG TERM STORAGE....265
      SPECIFICATIONS....265
    INTRODUCTION OF ATTACHMENTS....266
      ATTACHMENT INSTALLATION COMBINATION TABLE....266
      BUCKET SELECTION....267
        STANDARD DUTY PLATE BUCKET....267
        HEAVY DUTY PLATE BUCKET....267
        HEAVY DUTY CAST BUCKET....267
        DITCH CLEANING BUCKET....267
      SELECTION OF TRACK SHOES....268
    EXTENDING MACHINE SERVICE LIFE....269
      HYDRAULIC BREAKER....269
        MAIN FIELDS OF APPLICATION....269
        MISTAKEN METHODS OF USE....270
        GREASING POSITION FOR HYDRAULIC BREAKER....272
      POWER RIPPER....273
        MAIN FIELDS OF APPLICATION....273
        MISTAKEN METHODS OF USE....273
      GRAB FORK....275
        MAIN FIELDS OF APPLICATION....275
        MISTAKEN METHODS OF USE....275
      GRAPPLE BUCKET....276
        MAIN FIELDS OF APPLICATION....276
        MISTAKEN METHODS OF USE....276
      SCRAP GRAPPLE....278
        MAIN FIELDS OF APPLICATION....278
        MISTAKEN METHODS OF USE....278
      CRUSHER AND CUTTER....280
        MAIN FIELDS OF APPLICATION....280
        MISTAKEN METHODS OF USE....280
      HYDRAULIC PILE DRIVER....281
        MAIN FIELDS OF APPLICATION....281
        MISTAKEN METHODS OF USE....281
      MULTIPURPOSE CRANE....283
        MAIN FIELDS OF APPLICATION....283
        MISTAKEN METHODS OF USE....283
CEBM002502 - Hydraulic Excavator PC400LC-6LK, PC400HD-6LK avance Shop Manual....288
  COVER....288
  CONTENTS....289
  FOREWORD....300
    SAFETY....300
      SAFETY NOTICE....300
        IMPORTANT SAFETY NOTICE....300
        GENERAL PRECAUTIONS....300
        PREPARATIONS FOR WORK....300
        PRECAUTIONS DURING WORK....300
    GENERAL....302
    HOW TO READ THE SHOP MANUAL....303
      VOLUMES....303
      DISTRIBUTION AND UPDATING....303
      FILING METHOD....303
      REVISED EDITION MARK....303
      REVISIONS....303
      SYMBOLS....303
    HOISTING INSTRUCTIONS....304
      HOISTING....304
      WIRE ROPES....304
    COATING MATERIALS....305
    STANDARD TIGHTENING TORQUE....307
      STANDARD TIGHTENING TORQUE OF BOLTS AND NUTS....307
      TIGHTENING TORQUE OF HOSE NUTS....308
      TIGHTENING TORQUE OF SPLIT FLANGE BOLTS....308
      TIGHTENING TORQUE FOR FLARED NUTS....308
    ELECTRIC WIRE CODE....309
      CLASSIFICATION BY THICKNESS....309
      CLASSIFICATION BY COLOR AND CODE....309
    CONVERSION TABLES....310
      METHOD OF USING THE CONVERSION TABLE....310
  01 GENERAL....316
    SPECIFICATION DRAWINGS....317
      MACHINE....317
      WORK EQUIPMENT....319
    SPECIFICATIONS....321
    WEIGHT TABLE....323
    FUEL COOLANT AND LUBRICANTS....325
  10 STRUCTURE AND FUNCTION....326
    PARTS RELATED TO ENGINE....330
      ENGINE MOUNT TORQUES....332
    RADIATOR, OIL COOLER....334
      RADIATOR AND OIL COOLER SPECIFICATIONS AND TORQUES (1/4)....335
      RADIATOR AND OIL COOLER SPECIFICATIONS AND TORQUES (2/4)....336
      RADIATOR AND OIL COOLER SPECIFICATIONS AND TORQUES (3/4)....337
      RADIATOR AND OIL COOLER SPECIFICATIONS AND TORQUES (4/4)....339
    POWER TRAIN....340
    FINAL DRIVE....342
      FINAL DRIVE SPECIFICATIONS AND TORQUES....343
    SWING CIRCLE....345
      SWING CIRCLE SPECIFICATIONS AND TORQUES....346
    SWING MACHINERY....348
      SWING MACHINERY SPECIFICATIONS AND TORQUES....349
    TRACK FRAME, RECOIL SPRING....351
      PC400LC-6LK....351
        TRACK FRAME, RECOIL SPRING TORQUES PC400LC-6LK....352
      PC400LC-6LK - VARIABLE GAUGE....353
        TRACK FRAME, RECOIL SPRING TORQUES PC400LC-6LK - VARIABLE GAUGE....354
      PC400HD-6LK....355
        TRACK FRAME, RECOIL SPRING TORQUES PC400HD-6LK....356
    TRACK SHOE....358
      TRACK SHOE SPECIFICATIONS....361
    CARRIER ROLLER....362
    IDLER....363
    TRACK ROLLER....365
    HYDRAULIC PIPING DRAWING....367
    HYDRAULIC CIRCUIT DIAGRAM....369
    HYDRAULIC TANK, HYDRAULIC FILTER....370
    HYDRAULIC PUMP....371
      HPV 160 + 160....371
      HYDRAULIC PUMP TORQUES....374
      TVC, LS VALVE....378
        LS VALVE - OPERATION....381
        TVC VALVE - OPERATION....385
    HYDRAUIC CYLINDER....393
      BOOM, BUCKET CYLINDER - THREADED PISTON....393
      BOOM, BUCKET CYLINDER - CLAMPED PISTON....393
      ARM CYLINDER - THREADED PISTON....393
      ARM CYLINDER - CLAMPED PISTON....393
    CONTROL VALVE....395
      10 SPOOL VALVE - STD. AND 3 SERVICE VALVES....395
      9 SPOOL VALVE - STD AND 2 SERVICE VALVES....401
      8 SPOOL VALVE - STD AND 1 SERVICE VALVES....402
      7 SPOOL VALVE - STD....403
      CONTROL VALVE SPECIFICATIONS AND TORQUES....405
        10 SPOOL VALVE....405
    SELF REDUCING PRESSURE VALVE....411
      SELF REDUCING PRESSURE VALVE SPECIFICATIONS....411
    SUCTION SAFETY VALVE....417
      FOR SERVICE....417
      SUCTION SAFETY VALVE SPECIFICATIONS AND TORQUES....418
    CLSS....419
      OUTLINE OF CLSS....419
      BASIC PRINCIPLE....420
        CONTROL OF PUMP SWASH PLATE ANGLE....420
        PRESSURE COMPENSATION....421
      OPERATION FOR EACH FUNCTION OF CLSS....422
      SYSTEM DIAGRAM....423
      WHEN UNLOAD VALVE IS ACTUATED....424
      OPERATION OF RELIEF VALVE....425
        CUT-OFF CONTROL ACTUATED....425
        CUT-OFF CANCELED....425
      INTRODUCTION OF LS PRESSURE....426
      LS BYPASS VALVE....427
      PRESSURE COMPENSATION VALVE....428
      SHUTTLE VALVE INSIDE PRESSURE COMPENSATION VALVE....431
      VARIABLE TYPE PRESSURE COMPENSATION VALVE (FOR SERVICE VALVE)....433
      VARIABLE PRESSURE COMPENSATION VALVE SPECIFICATIONS AND TORQUES....434
      BOOM REGENERATION CIRCUIT....435
      ARM REGENERATION CIRCUIT....437
      MERGE FLOW DIVIDER VALVE....439
      LS SELECT VALVE....441
      2-STAGE SAFETY VALVE (INSTALLED TO BOOM CYLINDER HEAD)....442
      OPERATION OF CLSS SYSTEM AS A WHOLE....443
        WHEN ALL WORK EQUIPMENT IS AT NEUTRAL....443
        WHEN PUMP FLOW MERGED, BUCKET CURL OPERATED INDEPENDENTLY....444
        WHEN PUMP FLOW MERGED, BOOM RAISE OPERATED INDEPENDENTLY....444
        WHEN PUMP FLOW MERGED, ARM IN OPERATED INDEPENDENTLY....444
        WHEN PUMP FLOW MERGED, ARM OUT OPERATED INDEPENDENTLY....445
        WHEN PUMP DIVIDED, TRAVEL OPERATED INDEPENDENTLY....445
        WHEN PUMP FLOW MERGED, ARM IN + BOOM RAISE OPERATED SIMULTANEOUSLY....445
        WHEN PUMP FLOW MERGED, SWING + BOOM RAISE OPERATED SIMULTANEOUSLY....446
        WHEN PUMP FLOW DIVIDED, TRAVEL + BOOM RAISE OPERATED SIMULTANEOUSLY....446
        WHEN PUMP FLOW DIVIDED, TRAVEL + ARM IN OPERATED SIMULTANEOUSLY....446
    SWING MOTOR....447
      SWING MOTOR SPECIFICATIONS AND TORQUES....449
      SUCTION-SAFETY VALVE....450
      SWING BRAKE....451
    CENTER SWIVAL JOINT....452
      CENTER SWIVEL JOINT SPECIFICATIONS....453
    TRAVEL MOTOR....455
      MOTOR OPERATION....459
        AT LOW SPEED....459
        AT HIGH SPEED....460
      PARKING BRAKE OPERATION....461
        BRAKE VALVE OPERATION....461
      SAFETY VALVE....463
    VALVE CONTROL....466
    WORK EQUIPMENT PPC VALVE....467
      OPERATION....469
        AT NEUTRAL....469
        DURING FINE CONTROL (NEUTRAL Æ FINE CONTROL)....469
        DURING FINE CONTROL (WHEN LEVER IS RETURNED)....470
        AT FULL STROKE....470
      WORK EQUIPMENT AND SWING PPC VALVE SPECIFICATIONS AND TORQUES....471
    TRAVEL PPC VALVE....472
      OPERATION....474
        AT NEUTRAL....474
        FINE CONTROL (NEUTRAL --> FINE CONTROL)....474
        FINE CONTROL (CONTROL LEVER RETURNED)....475
        AT FULL STROKE....475
      TRAVEL PPC VALVE SPECIFICATIONS AND TORQUE....477
    SERVICE PPC VALVE....479
      SERVICE PPC VALVE SPECIFICATIONS AND TORQUES....481
    PPC SAFETY LOCK VALVE....482
    PPC ACCUMULATOR....483
    PPC SHUTTLE VALVE, TRAVEL JUNCTION VALVE....484
      PPC SHUTTLE VALVE....485
      TRAVEL JUNCTION VALVE....488
      STRAIGHT-TRAVEL SYSTEM....489
      PPC SHUTTLE VALVE, TRAVEL JUNCTION VALVE SPECIFICATIONS AND TORQUES....491
    LS-EPC VALVE....492
      LS-EPC VALVE SPECIFICATIONS AND TORQUES....495
    SOLENOID VALVE....496
      SOLENOID VALVE TORQUES....498
    BOOM HOLDING VALVE....499
      BOOM HOLDING VALVE SPECIFICATIONS AND TORQUES....502
    WORK EQUIPMENT....504
      WORK EQUIPMENT SPECIFICATIONS....505
      DIMENSIONS OF WORK EQUIPMENT....507
        ARM....507
        BUCKET....509
    AIR CONDITIONER....512
      A/C PIPING....512
      A/C ELECTRICAL WIRING DIAGRAM....513
    ENGINE CONTROL....517
      OPERATION....518
        STARTING ENGINE....518
        ENGINE SPEED CONTROL....518
        STOPPING ENGINE....518
      COMPONENTS....519
        FUEL CONTROL DIAL....519
        GOVERNOR MOTOR....521
        GOVERNOR, PUMP CONTROLLER....523
        INPUT OUTPUT SIGNALS....524
    ELECTRONIC CONTROL SYSTEM....526
      CONTROL FUNCTION....526
      TOTAL SYSTEM DIAGRAM....526
      PUMP AND ENGINE CONTROL SYSTEM....527
      PUMP AND VALVE CONTROL FUNCTION....530
        CUT-OFF FUNCTION....531
        CUT-OFF CANCEL FUNCTION....531
        FINE CONTROL MODE FUNCTION....532
      POWER MAX. FUNCTION, SWIFT SLOW-DOWN FUNCTION....533
      AUTO DECELERATION SYSTEM....534
      AUTOMATIC WARMING-UP AND ENGINE OVERHEAT PREVENTION FUNCTION....536
      SWING CONTROL SYSTEM....539
      TRAVEL CONTROL SYSTEM....541
      ACTIVE MODE FUNCTION....543
      INCREASE IN ENGINE SPEED....544
      COMPONENTS OF SYSTEM....545
        ENGINE SPEED SENSOR....545
        PPC HYDRAULIC SWITCH....545
        PUMP PRESSURE SENSOR....546
        TVC PROLIX RESISTOR....547
    MACHINE MONITOR SYSTEM....549
      MONITOR PANEL....550
      MONITOR DISPLAY....551
        CONTENT OF DISPLAY....552
      OIL MAINTENANCE FUNCTION....553
      MODE SELECTION SWITCHES....555
        SWITCH ACTUATION TABLE....555
        SENSORS....556
  20 TESTING, ADJUSTING AND TROUBLESHOOTING....560
    STANDARD VALUE TABLES....562
      ENGINE RELATED PARTS....562
      CHASSIS RELATED PARTS....563
      ELECTRICAL PARTS....568
    TESTING AND ADJUSTING....574
      SERVICE TOOLS....576
      ENGINE....577
        BLOW BY PRESSURE....577
        BOOST PRESSURE....577
        COMPRESSION PRESSURE....577
        ENGINE OIL PRESSURE....577
        ENGINE SPEED SENSOR....577
        ENGINE SPEED (rpm)....577
        EXHAUST COLOR....577
        FUEL INJECTION TIMING....577
        VALVE CLEARANCE....577
      GOVERNOR MOTOR LEVER S TROKE....578
      FAN BELT TENSION....579
      A/C COMPRESSOR BELT....579
      WORK EQUIPMENT, SWING, TRAVEL CIRCUIT....580
      TVC VALVE OUTPUT PRESSURE....583
      LS VALVE OUTPUT PRESSURE....585
      LS DIFFERENTIAL PRESSURE....585
      CONTROL CIRCUIT OIL PRESSURE....588
      SOLENOID VALVE OUTPUT PRESSURE....589
      PPC VALVE OUTPUT PRESSURE....592
      PPC SHUTTLE VALVE....592
      WORK EQUIPMENT, SWING PPC VALVE....594
      WORK EQUIPMENT....596
        HYDRAULIC DRIFT - LOCATIONS CAUSING....596
          CYLINDER PACKING....596
          BOOM LOCK VALVE....597
          PPC VALVE....597
      OIL LEAKAGE....598
        WORK EQUIPMENT CYLINDER....598
        SWING MOTOR....599
        TRAVEL MOTOR....599
      RELEASING REMAINING PRESSURE....600
      TESTING CLEARANCE OF SWING CIRCLE BEARING....601
      SPROCKET WEAR....602
      TRACK SHOE TENSION....603
      BLEEDING AIR....604
        BLEEDING AIR FROM HYDRAULIC CYLINDERS....605
        BLEEDING AIR FROM SWING MOTOR....605
        BLEEDING AIR FROM TRAVEL MOTOR....605
    TROUBLESHOOTING GENERAL....606
      POINTS TO REMEMBER WHEN TROUBLESHOOTING....608
      SEQUENCE OF EVENTS IN TROUBLESHOOTING....610
      POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE....611
        POINTS TO REMEMBER WHEN HANDLING ELECTRIC EQUIPMENT....611
          HANDLING WIRING HARNESSES AND CONNECTORS....611
          REMOVING, INSTALLING, AND DRYING CONNECTORS AND WIRING HARNESSES....613
          HANDLING CONTROL BOX....616
        POINTS TO REMEMBER WHEN TROUBLESHOOTING ELECTRIC CIRCUITS....617
        POINTS TO REMEMBER WHEN HANDLING HYDRAULIC EQUIPMENT....617
      CHECKS BEFORE TROUBLESHOOTING....619
      CONNECTOR TYPES AND MOUNTING LOCATIONS....620
      CONNECTION TABLE FOR CONNECTOR PIN NUMBERS....626
      EXPLANATION OF CONTROL MECHANISM FOR ELECTRICAL SYSTEM....636
        EXPLANATION OF MACHINE CONTROL FUNCTIONS....636
        DISPLAY METHOD AND SPECIAL FUNCTION OF MONITORING PANEL....637
          DISPLAY ON MACHINE MONITOR....637
          RECORDING OF SERVICE CODES AND USER CODE DISPLAY FUNCTION....637
          METHOD OF DISPLAYING TROUBLE DATA....638
          MACHINE DATA MONITORING FUNCTION....639
          METHOD OF DISPLAYING MONITORING CODE....639
          TABLE OF MACHINE MONITORING CODES....640
          BIT PATTERN CHART....641
          GOVERNOR MOTOR ADJUSTMENT MODE....643
          TIME ADJUSTMENT MODE....643
          WORKING MODE DEFAULT SETTING MODE....644
      METHOD OF USING JUDGEMENT TABLE....645
      METHOD OF USING TROUBLESHOOTING CHARTS....647
        METHOD OF USING TROUBLESHOOTING TABLE FOR EACH TROUBLESHOOTING MODE....647
      DETAILS OF TROUBLESHOOTING AND TROUBLESHOOTING PROCEDURE....651
        PROCEDURE FOR CHECKING MONITOR PANEL OUTPUT SIGNAL....653
        CHECKING INPUT SIGNAL OF GOVERNOR, PUMP CONTROLLER....654
          PUMP CONTROL SYSTEM....654
          GOVERNOR CONTROL SYSTEM....657
      SERVICE CODE TABLE....658
    TROUBLESHOOTING ELECTRICAL SYSTEM ON GOVERNOR PUMP CONTROLLER (C-MODE)....660
      POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM....662
        POINTS TO REMEMBER IF A PROBLEM RETURNS TO NORMAL BY ITSELF....662
        USER CODE MEMORY RETENTION FUNCTION....662
      INFORMATION CONTAINED IN TESTING PROCEDURES....663
      (C-1)....665
        CONTROLLER POWER SOURCE (LED) IS OFF....665
      (C-2)....667
        SHORT IN FRONT PUMP (TVC) SOLENOID SYSTEM....667
      (C-3)....669
        OPEN IN FRONT PUMP (TVC) SOLENOID SYSTEM....669
      (C-4)....671
        SHORT IN REAR PUMP (TVC) SOLENOID SYSTEM....671
      (C-5)....673
        OPEN IN REAR PUMP (TVC) SOLENOID SYSTEM....673
      (C-6)....675
        SHORT IN (LS) SELECT SOLENOID SYSTEM....675
      (C-7)....676
        OPEN IN (LS) SELECT SOLENOID SYSTEM....676
      (C-8)....677
        SHORT IN SWING BRAKE SOLENOID SYSTEM....677
      (C-9)....679
        OPEN IN SWING BRAKE SOLENOID SYSTEM....679
      (C-10)....681
        SHORT IN PUMP MERGE DIVIDER SOLENOID SYSTEM....681
      (C-11)....683
        OPEN IN PUMP MERGE DIVIDER SOLENOID SYSTEM....683
      (C-12)....685
        SHORT IN TRAVEL SPEED SOLENOID SYSTEM....685
      (C-13)....687
        OPEN IN TRAVEL SPEED SOLENOID SYSTEM....687
      (C-14)....689
        SHORT IN ACTIVE MODE, SWING, SOLENOID SYSTEM....689
      (C-15)....691
        OPEN IN ACTIVE MODE, SWING, SOLENOID SYSTEM....691
      (C-16)....693
        ABNORMAL INPUT FOR MODEL CODE....693
      (C-17)....695
        SHORT IN (LS-EPC) SOLENOID SYSTEM....695
      (C-18)....696
        OPEN IN (LS-EPC) SOLENOID SYSTEM....696
      (C-19)....697
        ABNORMAL FRONT PUMP PRESSURE SENSOR SIGNAL....697
      (C-20)....699
        BINOMIAL REAR PUMP PRESSURE SENSOR SIGNAL....699
      (C-21)....701
        ABNORMAL PRESSURE SENSOR POWER SUPPLY....701
      (C-22)....703
        ABNORMAL ENGINE RPM SIGNAL IN GOVERNOR PUMP CONTROLLER....703
      (C-23)....705
        MACHINE PUSH-UP SOLENOID HAS NO RESPONSE....705
    TROUBLESHOOTING ELECTRICAL SYSTEM ON GOVERNOR PUMP CONTROLLER (E-MODE)....708
      POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM....710
        POINTS TO REMEMBER IF A PROBLEM RETURNS TO NORMAL BY ITSELF....710
        USER CODE MEMORY RETENTION FUNCTION....710
      INFORMATION CONTAINED IN TESTING PROCEDURES....711
      (E-1)....713
        CONTROLLER POWER SOURCE (LED) IS OFF....713
      (E-2)....715
        INCORRECT FUEL CONTROL DIAL VALUE DISPLAYED....715
      (E-3)....717
        OPEN IN MOTOR DRIVE SYSTEM....717
      (E-4)....719
        SHORT IN MOTOR DRIVE SYSTEM....719
      (E-5)....721
        INCORRECT FEEDBACK IN POTENTIOMETER DISPLAYED....721
      (E-6)....723
        SHORT IN BATTERY RELAY OUTPUT SYSTEM....723
      (E-7)....725
        ABNORMALITY IN STEP OUT MOTOR SYSTEM....725
      (E-8)....727
        ENGINE WILL NOT CRANK....727
      (E-9)....729
        ENGINE SPEED IRREGULAR....729
        ENGINE SPEED IS HUNTING....731
      (E-10)....733
        ENGINE OUTPUT IS LOW....733
      (E-11)....735
        ENGINE WILL NOT SHUT DOWN....735
      (E-12)....737
        FAULTY OPERATION OF RELAY OUTPUT SYSTEM....737
    TROUBLSHOOTING GOVERNOR, PUMP CONTROLLER, INPUT SIGNAL (F-MODE)....740
      POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM....741
        POINTS TO REMEMBER IF A PROBLEM RETURNS TO NORMAL BY ITSELF....741
        USER CODE MEMORY RETENTION FUNCTION....741
      INFORMATION CONTAINED IN TESTING PROCEDURES....742
      (F-1)....744
        SWING OIL PRESSURE SWITCH DOES NOT LIGHT UP....744
      (F-2)....745
        TRAVEL OIL PRESSURE SWITCH DOES NOT LIGHT UP....745
      (F-3)....746
        BOOM (LOWER) PRESSURE SWITCH DOES NOT LIGHT UP....746
      (F-4)....747
        BOOM (RAISE) PRESSURE SWITCH DOES NOT LIGHT UP....747
      (F-5)....748
        ARM (IN) PRESSURE SWITCH DOES NOT LIGHT UP....748
      (F-6)....749
        ARM (OUT) PRESSURE SWITCH DOES NOT LIGHT UP....749
      (F-7)....750
        BUCKET (CURL) PRESSURE SWITCH DOES NOT LIGHT UP....750
      (F-8)....751
        BUCKET (DUMP) PRESSURE SWITCH DOES NOT LIGHT UP....751
      (F-9)....752
        SWING LOCK SWITCH DOES NOT LIGHT UP....752
      (F-10)....753
        MODE CONNECTION DOES NOT LIGHT UP....753
      (F-11)....755
        LEFT KNOB SWITCH DOES NOT LIGHT UP....755
    TROUBLESHOOTING HYDRAULIC AND MECHANICAL SYSTEM (H-MODE)....758
      PUMP MERGE DIVIDER LOGIC....760
      SOLENOID ACTUATION TABLE....760
      TABLE OF FAILURE MODES AND CAUSES....761
      H-1....765
        SPEEDS OF ALL WORK EQUIPMENT, SWING, TRAVEL ARE SLOW OR LACK POWER....765
      H-2....767
        THERE IS EXCESSIVE DROP IN ENGINE SPEED, OR ENGINE STALLS....767
      H-3....768
        NO WORK EQUIPMENT, TRAVEL, SWING MOVEMENT....768
      H-4....769
        ABNORMAL NOISE GENERATED AROUND PUMP....769
      H-5....770
        AUTO DECELERATION DOES NOT WORK WHEN PPC SHUTTLE VALVE IS CAUSE....770
      H-6....770
        FINE CONTROL ABILITY IS POOR OR RESPONSE IS POOR....770
      H-7....771
        BOOM IS SLOW OR LACKS POWER....771
      H-8....773
        ARM IS SLOW OR LACKS POWER....773
      H-9....775
        BUCKET IS SLOW OR LACKS POWER....775
      H-10....777
        WORK EQUIPMENT; BOOM, ARM, BUCKET, DOES NOT MOVE, BUT TRAVEL AND SWING ARE NORMAL....777
      H-11....777
        EXCESSIVE HYDRAULIC DRIFT, BOOM, ARM, BUCKET....777
          EXCESSIVE HYDRAULIC DRIFT OF BOOM....777
          EXCESSIVE HYDRAULIC DRIFT OF ARM OR BUCKET....777
      H-12....778
        EXCESSIVE TIME LAG, ENGINE AT LOW IDLING....778
      H-13....778
        OTHER EQUIPMENT MOVES WHEN SINGLE CIRCUIT IS RELIEVED....778
      H-14....779
        IN L/O, F/O MODES, WORK EQUIPMENT SPEED IS FASTER THAN SPECIFIED SPEED....779
      H-15....779
        MALFUNCTION OF MACHINE PUSH UP FUNCTION....779
      H-16....779
        IN COMPOUND OPERATIONS, WORK EQUIPMENT WITH LARGER LOAD IS SLOW....779
      H-17....780
        IN SWING PLUS BOOM RAISE, BOOM RAISE IS SLOW....780
          IN ACTIVE MODE....780
          IN OTHER MODE....780
      H-18....780
        IN SWING PLUS ARM, ARM IS SLOW....780
      H-19....780
        IN SWING PLUS TRAVEL, TRAVEL SPEED DROPS EXCESSIVELY....780
      H-20....781
        TRAVEL DEVIATION....781
          WHEN THERE IS A DEVIATION IN NORMAL TRAVEL....781
          EXCESSIVE DEVIATION WHEN STARTING....781
      H-21....783
        TRAVEL SPEED IS SLOW....783
      H-22....785
        STEERING DOES NOT TURN EASILY OR LACKS POWER....785
      H-23....787
        TRAVEL SPEED DOES NOT SWITCH OR IS FASTER THAN SPECIFIED SPEED....787
      H-24....787
        TRAVEL DOES NOT MOVE, ONE SIDE ONLY....787
      H-25....788
        DOES NOT SWING....788
          DOES NOT SWING TO EITHER LEFT OR RIGHT....788
          DOES NOT SWING IN ONE DIRECTION....788
      H-26....789
        SWING ACCELERATION IS POOR OR SWING SPEED IS SLOW....789
      H-27....791
        EXCESSIVE OVERRUN WHEN STOPPING SWING....791
          ONE DIRECTION ONLY....791
          BOTH DIRECTIONS....791
      H-28....792
        EXCESSIVE SHOCK WHEN STOPPING SWING, ONE DIRECTION ONLY....792
      H-29....792
        EXCESSIVE ABNORMAL NOISE WHEN STOPPING SWING....792
      H-30....793
        EXCESSIVE HYDRAULIC DRIFT OR SWING....793
          WHEN SWING HOLDING BRAKE IS RELEASED....793
          WHEN SWING HOLDING BRAKE IS APPLIED....793
      H-31....794
        SWING SPEED IS FASTER THAN SPECIFIED SWING SPEED....794
    TROUBLESHOOTING MACHINE MONITOR SYSTEM (M-MODE)....796
      POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM....798
        POINTS TO REMEMBER IF A PROBLEM RETURNS TO NORMAL BY ITSELF....798
        USER CODE MEMORY RETENTION FUNCTION....798
      INFORMATION CONTAINED IN TESTING PROCEDURES....799
      (M-1)....801
        ERROR IN DATA HISTORY....801
      (M-2)....803
        SHORT IN BUZZER OUTPUT DISPLAY....803
      (M-3)....805
        AIR CLEANER CLOG INDICATOR FAILURE....805
      (M-4)....807
        ABNORMAL ENGINE (HI) OIL PRESSURE....807
      (M-5)....809
        ENGINE COOLANT INDICATING OVERHEAT CONDITION....809
      (M-6)....811
        THREE SECOND DELAY ON MONITOR WHEN IGNITION KEY IS TURNED “ON”....811
      (M-7)....813
        WHEN IGNITION SWITCH IS TURNED “ON” ALL PANEL LAMPS STAY ILLUMINATED....813
      (M-8)....813
        WHEN IGNITION SWITCH IS TURNED “ON” PANEL LIGHTS DO NOT MATCH THE MACHINE....813
      (M-9)....815
        ABNORMAL FLUID LEVEL INDICATIONS....815
          ENGINE COOLANT LEVEL FLASHES....815
          ENGINE OIL LEVEL FLASHES....817
          HYDRAULIC OIL LEVEL FLASHES....818
      (M-10)....819
        PREHEATING INDICATION IS “ON” WHEN SYSTEM IS OFF....819
      (M-11)....821
        WHEN ENGINE IS STARTED BASIC CHECK ITEMS FLASH....821
          ALTERNATOR SYSTEM....821
          ENGINE OIL PRESSURE....823
      (M-12)....825
        WHEN ENGINE IS STARTED CAUTION ITEMS FLASH....825
          ALTERNATOR SYSTEM....825
          ENGINE OIL PRESSURE....827
      (M-13)....829
        WHEN THE ENGINE IS STARTED CAUTION AND EMERGENCY ITEMS FLASH....829
          ENGINE OIL PRESSURE FLASHES....829
          COOLANT LEVEL FLASHES....829
          BATTERY CHARGE INDICATOR FLASHES....829
          COOLANT TEMPERATURE FLASHES....830
          FUEL LEVEL FLASHES....831
          AIR CLEANER CLOG INDICATOR FLASHES....832
      (M-14)....833
        WARNINGS FLASH BUT BUZZER IS DELAYED....833
      (M-15)....835
        BUZZER SOUNDS CONTINUOUSLY....835
      (M-16)....837
        NIGHT LIGHT ON MONITOR PANEL DOES NOT LIGHT-UP....837
      (M-17)....839
        ENGINE COOLANT TEMPERATURE DOES NOT RISE....839
      (M-18)....841
        ENGINE COOLANT TEMPERATURE GIVES NO DISPLAY....841
      (M-19)....843
        FUEL LEVEL GAUGE ALWAYS SHOWS “FULL”....843
      (M-20)....844
        FUEL LEVEL GAUGE DOES NOT DISPLAY....844
      (M-21)....845
        SWING LOCK NOT INDICATED ON MONITOR WHEN “ON”....845
      (M-22)....847
        SWING PROLOX NOT INDICATED ON MONITOR....847
      (M-23)....849
        SERVICE METER DOES NOT ADVANCE WHILE ENGINE IS RUNNING....849
      (M-24)....850
        WITH IGNITION SWITCH “OFF”, WHEN THE TIME SWITCH IS PRESSED THE TIME AND SERVICE ARE NOT DISPLAYED....850
      (M-25)....851
        FAULTY FUEL LEVER SENSOR SYSTEM....851
      (M-26)....852
        COOLANT TEMPERATURE SENSOR SYSTEM....852
      (M-27)....853
        FAULTY ENGINE OIL LEVEL SENSOR SYSTEM....853
      (M-28)....855
        FAULTY ENGINE COOLANT LEVEL SENSOR SYSTEM....855
      (M-29)....857
        FAULTY HYDRAULIC OIL LEVEL SENSOR SYSTEM....857
      (M-30)....859
        WIPER DOES NOT WORK, OR REMAINS “ON”....859
          WIPER DOES NOT WORK....859
          WIPER SWITCH IS IN THE "OFF" POSITION BUT WIPERS REMAIN ON....862
      (M-13)....865
        WASHER MOTOR WORKS WHEN SWITCH IS NOT BEING USED OR WASHER MOTOR DOES NOT WORK....865
    TROUBLESHOOTING COMMUNICATION SYSTEM (N-MODE)....868
      POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM....869
        POINTS TO REMEMBER IF A PROBLEM RETURNS TO NORMAL BY ITSELF....869
        USER CODE MEMORY RETENTION FUNCTION....869
      INFORMATION CONTAINED IN TESTING PROCEDURES....870
      (N-1)....872
        COMMUNICATION ABNORMALITY....872
  30 DISASSEMBLY AND ASSEMBLY....874
    METHOD OF USING MANUAL....876
    PRECAUTIONS DURING OPERATION....877
      PRECAUTIONS WHEN CARRYING OUT REMOVAL WORK....877
      PRECAUTIONS WHEN CARRYING OUT INSTALLATION WORK....878
      PRECAUTIONS WHEN COMPLETING THE OPERATIONS....879
      OTHER PRECAUTIONS....879
    SPECIAL TOOL LIST....880
    SKETCHES OF SPECIAL TOOLS....885
    ENGINE....893
      AFTERCOOLER....893
      ALTERNATOR....893
      CYLINDER HEAD....893
      ENGINE OIL COOLER....893
      ENGINE REAR SEAL....893
      FUEL INJECTION PUMP....893
      NOZZLE HOLDER....893
      STARTING MOTOR....893
      THERMOSTAT....893
      TURBOCHARGER....893
      WATER PUMP....893
    GOVERNOR MOTOR....894
    OIL COOLER....895
    RADIATOR, OIL COOLER....897
    ENGINE, MAIN HYDRAULIC PUMP....900
    DAMPER....905
    FUEL TANK....906
    CENTER SWIVEL JOINT....907
    FINAL DRIVE....909
    TRAVEL MOTOR....920
    SPROCKET....934
    SWING MOTOR....935
    SWING MACHINERY....945
    REVOLVING FRAME....954
    SWING CIRCLE....956
    IDLER AND RECOIL SPRING....957
    IDLER....958
    RECOIL SPRING....962
    TRACK ROLLER....964
    CARRIER ROLLER....970
    TRACK CHAIN....975
    HYDRAULIC TANK....976
    MAIN HYDRAULIC PUMP....978
      DISASSEMBLY....980
        PUMP ASSEMBLY....980
        FRONT PUMP....980
        REAR PUMP....985
      ASSEMBLY....988
        FRONT PUMP....988
        REAR PUMP....996
    MAIN PUMP OIL SEAL....1007
    CONTROL VALVE....1008
    PUMP MERGE DIVIDER VALVE....1022
    PRESSURE COMPENSATION VALVE....1023
    FRONT PUMP SERVO VALVE....1024
    REAR PUMP SERVO VALVE....1025
    LS-EPC SOLENOID VALVE....1026
    SOLENOID VALVE....1027
    WORK EQUIPMENT PPC VALVE....1029
    TRAVEL PPC VALVE....1031
    PPC SHUTTLE VALVE....1034
    BOOM LOCK VALVE....1037
    CYLINDER....1039
      BOOM....1039
      ARM....1041
      BUCKET....1043
      HYDRAULIC....1045
        BOLT ON TYPE PISTON....1045
        THREADED STYLE PISTON....1049
    WORK EQUIPMENT....1055
      BUCKET....1057
      ARM....1059
      BUCKET AND ARM....1061
      BOOM....1063
    OPERATORS CAB....1065
    COUNTERWEIGHT....1067
    AIR CONDITIONER....1068
      COMPRESSOR....1068
      CONDENSER....1069
      RECEIVER TANK....1070
      AIR CONDITIONER UNIT....1071
    GOVERNOR, PUMP CONTROLLER....1073
    MONITOR PANEL....1074
    CONTROL STAND CASE....1075
  90 OTHERS....1078
    ELECTRICAL....1080
      FOLDOUT 1 - CIRCUIT DIAGRAM SHEET 1 (Part 1 of 3)....1080
      FOLDOUT 2 - CIRCUIT DIAGRAM SHEET 1 (Part 2 of 3)....1082
      FOLDOUT 3 - CIRCUIT DIAGRAM SHEET 1 (Part 3 of 3)....1084
      FOLDOUT 4 - CIRCUIT DIAGRAM SHEET 2 (Part 1 of 2)....1086
      FOLDOUT 5 - CIRCUIT DIAGRAM SHEET 2 (Part 2 of 2)....1088
      FOLDOUT 6 - CIRCUIT DIAGRAM SHEET 3 (Part 1 of 1)....1090
      FOLDOUT 7 - ELECTRONIC CONTROL SYSTEM - TOTAL SYSTEM DIAGRAM....1092
    HYDRAULIC....1094
      FOLDOUT 8 - CIRCUIT DIAGRAM (Sheet 1 of 4)....1094
      FOLDOUT 9 - CIRCUIT DIAGRAM (Sheet 2 of 4)....1096
      FOLDOUT 10 - CIRCUIT DIAGRAM (Sheet 3 of 4)....1098
      FOLDOUT 11 - CIRCUIT DIAGRAM (Sheet 4 of 4)....1100
      CLSS OPERATION FOR EACH FUNCTION....1102
        FOLDOUT 12 - HYDRAULIC CIRCUIT DIAGRAM....1102
        FOLDOUT 13 - WHEN ALL WORK EQUIPMENT IS AT NEUTRAL....1104
        FOLDOUT 14 - WHEN PUMP FLOW MERGED, BUCKET CURL OPERATED INDEPENDENTLY....1106
        FOLDOUT 15 - WHEN PUMP FLOW MERGED, BOOM RAISE OPERATED INDEPENDENTLY....1108
        FOLDOUT 16 - WHEN PUMP FLOW MERGED, ARM IN OPERATED INDEPENDENTLY....1110
        FOLDOUT 17 - WHEN PUMP FLOW MERGED, ARM OUT OPERATED INDEPENDENTLY....1112
        FOLDOUT 18 - WHEN PUMP DIVIDED, TRAVEL OPERATED INDEPENDENTLY....1114
        FOLDOUT 19 - WHEN PUMP FLOW MERGED, ARM IN + BOOM RAISE OPERATED SIMULTANEOUSLY....1116
        FOLDOUT 20 - WHEN PUMP FLOW MERGED, SWING + BOOM RAISE OPERATED SIMULTANEOUSLY....1118
        FOLDOUT 21 - WHEN PUMP FLOW DIVIDED, TRAVEL + BOOM RAISE OPERATED SIMULTANEOUSLY....1120
        FOLDOUT 22 - WHEN PUMP FLOW DIVIDED, TRAVEL + ARM IN OPERATED SIMULTANEOUSLY....1122

Komatsu Hydraulic Excavator PC400LC-LK, PC400HD-LK Series Repair Service Manuals