Complete service repair manual with Electrical Wiring Diagrams for Komatsu Hydraulic Excavators PC400LC-7L, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.

Komatsu Hydraulic Excavators PC400LC-7L 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.

CEAM012900 - Hydraulic Excavator GALEO PC400LC-7L Operation & Maintenance Manual.pdf
CEBM012503 - Hydraulic Excavator PC400LC-7L Shop Manual.pdf

Total Pages: 1,147 pages
File Format: PDF
Language: English

CEAM012900 - Hydraulic Excavator GALEO PC400LC-7L Operation & Maintenance Manual....2
  COVER....2
  INTRODUCTION....8
    FOREWORD....9
    SAFETY INFORMATION....9
      SAFETY LABELS....10
    INTRODUCTION....11
      INTENDED USE....11
      DIRECTIONS OF MACHINE....11
      BREAKING-IN THE NEW MACHINE....11
    PRODUCT INFORMATION....12
      MACHINE SERIAL NUMBER PLATE AND ITS LOCATION....12
      ENGINE SERIAL NUMBER PLATE AND ITS LOCATION....12
    SERVICE METER LOCATION....13
    YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR....13
  TABLE OF CONTENTS....14
  SAFETY....20
    SAFETY LABELS....21
      LOCATION OF SAFETY LABELS....21
      SAFETY LABELS....22
    SAFETY INFORMATION....29
      SAFETY RULES....29
        IF ABNORMALITIES ARE FOUND....29
        WORKING WEAR AND PERSONAL PROTECTIVE ITEMS....29
        FIRE EXTINGUISHER AND FIRST AID KIT....29
        SAFETY EQUIPMENT....30
        KEEP MACHINE CLEAN....30
        KEEP OPERATOR'S COMPARTMENT CLEAN....30
        LEAVING OPERATOR'S SEAT WITH LOCK....30
        HANDRAILS AND STEPS....31
        MOUNTING AND DISMOUNTING....31
        NO PERSONS ON ATTACHMENTS....31
        BURN PREVENTION....32
        FIRE PREVENTION AND EXPLOSION PREVENTION....32
        ACTION IF FIRE OCCURS....33
        WINDSHIELD WASHER FLUID....33
        FALLING OBJECTS, FLYING OBJECTS AND INTRUDING OBJECTS PREVENTION....34
        ATTACHMENT INSTALLATION....34
        ATTACHMENT COMBINATIONS....34
        CAB WINDOW GLASSES....34
        UNAUTHORIZED MODIFICATIONS....34
        SAFETY AT JOBSITE....35
        WORKING ON LOOSE GROUND....35
        DISTANCE TO HIGH VOLTAGE CABLES....36
        ENSURE GOOD VISIBILITY....36
        VENTILATION FOR ENCLOSED AREA....36
        SIGNALMAN'S SIGNAL AND SIGNS....37
        EMERGENCY EXIT FROM OPERATOR'S CAB....37
        ASBESTOS DUST HAZARD PREVENTION....37
    SAFETY MACHINE OPERATION....38
      STARTING ENGINE....38
        CHECKS BEFORE STARTING ENGINE....38
        SAFETY RULES FOR STARTING ENGINE....38
        STARTING ENGINE IN COLD WEATHER....39
      OPERATION....40
        CHECKS BEFORE OPERATION....40
        SAFETY RULES FOR CHANGING MACHINE DIRECTIONS....40
        SAFETY RULES FOR TRAVELING....41
        TRAVELING ON SLOPES....42
        OPERATIONS ON SLOPES....43
        PROHIBITED OPERATIONS....43
        OPERATIONS ON SNOW....45
        PARKING MACHINE....45
      TRANSPORTATION....46
        LOADING AND UNLOADING....46
        SHIPPING THE MACHINE....46
      BATTERY....47
        BATTERY HAZARD PREVENTION....47
        STARTING ENGINE WITH BOOSTER CABLES....48
      TOWING....49
        SAFETY RULES FOR TOWING....49
      LIFTING OBJECTS WITH BUCKET....50
        SAFETY RULES FOR LIFTING OBJECTS....50
    SAFETY MAINTENANCE INFORMATION....51
      WARNING TAG....51
      KEEP WORK PLACE CLEAN AND TIDY....51
      APPOINT LEADER WHEN WORKING WITH OTHERS....51
      STOP ENGINE BEFORE CARRYING OUT MAINTENANCE....52
      TWO WORKERS FOR MAINTENANCE WHEN ENGINE IS RUNNING....52
      PROPER TOOLS....53
      ACCUMULATOR....53
      PERSONNEL....53
      ATTACHMENTS....54
      WORK UNDER THE MACHINE....54
      NOISE....54
      WHEN USING HAMMER....54
      WELDING WORKS....55
      REMOVING BATTERY TERMINALS....55
      SAFETY FIRST WHEN USING HIGH-PRESSURE GREASE TO ADJUST TRACK TENSION....55
      DO NOT DISASSEMBLE RECOIL SPRINGS....55
      SAFETY RULES FOR HIGH-PRESSURE OIL....56
      SAFETY HANDLING HIGH-PRESSURE HOSES....56
      WASTE MATERIALS....56
      AIR CONDITIONER MAINTENANCE....57
      COMPRESSED AIR....57
      PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS....57
  OPERATION....58
    MACHINE VIEW ILLUSTRATIONS....59
      OVERALL MACHINE VIEW....59
      CONTROLS AND GAUGES....60
    DETAILED CONTROLS AND GAUGES....62
      MONITORING SYSTEM....62
        BASIC OPERATION OF MACHINE MONITOR....63
        BASIC CHECK MONITORS....65
        CAUTION MONITORS....67
        EMERGENCY MONITORS....69
        METER DISPLAY PORTION....71
        GAUGES AND METER....74
        MONITOR SWITCHES PORTION....76
      SWITCHES....87
      CONTROL LEVERS AND PEDALS....92
    SUN ROOF....95
    WINDSHIELD....95
    EMERGENCY EXIT FROM OPERATOR'S CAB....100
    DOOR LOCK....100
    CAP WITH LOCK....101
    HOT AND COOL BOX....102
    MAGAZINE BOX....103
    ASHTRAY....103
    AIR CONDITIONER CONTROLS....104
      AIR CONDITIONER CONTROL PANEL....104
      METHOD OF OPERATION....109
      OTHER FUNCTIONS....116
    RADIO....118
      CONTROL PANEL....118
      CONTROLS OF RADIO....120
        PRESET STATION BUTTONS....120
        SETTING CORRECT TIME....121
    AUXILIARY ELECTRIC POWER....122
      24V POWER SOURCE....122
      12V POWER SOURCE....122
    FUSE....123
    FUSIBLELINK....124
    CONTROLLERS....125
    TOOL BOX....126
    GREASE GUN HOLDER....126
    ACCUMULATOR....127
      RELEASING HYDRAULIC PRESSURE WITH ACCUMULATOR....127
    MACHINE OPERATIONS AND CONTROLS....128
      BEFORE STARTING ENGINE....128
        WALK-AROUND CHECKS....128
        CHECKS BEFORE STARTING....129
        SEAT ADJUSTMENT....135
        SEAT BELT....138
        OPERATIONS BEFORE STARTING ENGINE....139
      STARTING ENGINE....142
        NORMAL STARTING....142
        STARTING ENGINE IN COLD WEATHER....144
      AFTER STARTING ENGINE....147
        WARMING-UP OPERATION....147
        COLD WEATHER AREAS....151
      STOPPING THE ENGINE....156
      MACHINE OPERATION....157
      STEERING THE MACHINE....161
      STRAIGHT TRAVEL SYSTEM (STS) / ATTACHMENT CONTROL PEDAL....163
        LOCKED PIN POSITIONS....163
        STRAIGHT TRAVEL DIRECTION....163
      SWINGING....164
      WORK EQUIPMENT CONTROLS AND OPERATIONS....165
      WORKING MODE....167
      PROHIBITED OPERATIONS....168
      GENERAL OPERATION INFORMATION....170
      TRAVELING ON SLOPES....171
      ESCAPE FROM MUD....173
      RECOMMENDED APPLICATIONS....174
      BUCKET REPLACEMENT AND INVERSION....176
      PARKING MACHINE....179
      CHECK AFTER SHUT OFF ENGINE....180
      MACHINE INSPECTION AFTER DAILY WORK....180
      LOCKING....181
    TRANSPORTATION....182
      PRECAUTIONS FOR TRANSPORTATION....182
      LIFTING MACHINE....182
      PRECAUTIONS WHEN LOADING....183
      TRANSPORTATION POSTURE....183
      TRACK FRAME GAUGE....187
        REDUCING TRACK GAUGE....187
        INCREASING TRACK GUAGE....187
    COLD WEATHER OPERATION....188
      COLD WEATHER OPERATION INFORMATION....188
      AFTER DAILY WORK COMPLETION....190
      AFTER COLD WEATHER SEASON....190
    LONG TERM STORAGE....191
      BEFORE STORAGE....191
      DURING STORAGE....191
      AFTER STORAGE....192
      STARTING MACHINE AFTER LONG-TERM STORAGE....192
    TROUBLES AND ACTIONS....193
      RUNNING OUT OF FUEL....193
      PHENOMENA THAT ARE NOT FAILURES....194
      TOWING THE MACHINE....195
      LIGHTWEIGHT TOWING HOLE....196
      SEVERE JOB CONDITION....196
      DISCHARGED BATTERY....197
      OTHER TROUBLE....201
  MAINTENANCE....206
    MAINTENANCE INFORMATION....207
    LUBRICANTS, COOLANT AND FILTERS....209
      HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC....209
    ELECTRIC SYSTEM MAINTENANCE....212
    WEAR PARTS....213
      WEAR PARTS LIST....213
    LUBRICANTS, FUEL AND COOLANT SPECIFICATIONS....214
    TIGHTENING TORQUE SPECIFICATIONS....218
      TIGHTENING TORQUE LIST....218
    SAFETY CRITICAL PARTS....220
      SAFETY CRITICAL PARTS LIST....220
    MAINTENANCE SCHEDULE....221
      MAINTENANCE SCHEDULE CHART....221
      MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER....223
        REPLACE HYDRAULIC OIL FILTER ELEMENT....223
        CHANGE OIL IN HYDRAULIC TANK....223
        REPLACE ADDITIONAL FILTER ELEMENT FOR BREAKER....223
    MAINTENANCE PROCEDURE....224
      INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS)....224
        REPLACE FUEL FILTER CARTRIDGE....264
      INITIAL 1000 HOURS MAINTENANCE (ONLY AFTER THE FIRST 1000 HOURS)....224
        CHECK ENGINE VALVE CLEARANCE, ADJUST....283
      WHEN REQUIRED....225
        CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT....225
        CLEAN INSIDE OF COOLING SYSTEM....230
        CHECK AND TIGHTEN TRACK SHOE BOLTS....233
        CHECK AND ADJUST TRACK TENSION....234
        CHECK ELECTRICAL INTAKE AIR HEATER....235
        REPLACE BUCKET TEETH (VERTICAL PIN TYPE)....236
        REPLACE BUCKET TEETH (HORIZONTAL PIN TYPE)....239
        REPLACE BUCKET SIDE CUTTER, SHROUD....240
        ADJUST BUCKET CLEARANCE....241
        CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID....242
        CHECK AND ADJUST AIR CONDITIONER....243
        WASH WASHABLE FLOOR....244
        BLEEDING AIR FROM HYDRAULIC SYSTEM....248
        METHOD FOR RELEASING INTERNAL PRESSURE IN HYDRAULIC CIRCUIT....250
        CHECK NITROGEN GAS CHARGE PRESSURE IN ACCUMULATOR (CONTROL CIRCUIT)....251
      CHECK BEFORE STARTING....252
      EVERY 250 HOURS MAINTENANCE....253
        LUBRICATING....253
        CHECK OIL LEVEL IN SWING MACHINERY CASE, ADD OIL....254
        CHECK OIL LEVEL IN FINAL DRIVE CASE, ADD OIL....255
        CHECK LEVEL OF BATTERY ELECTROLYTE....256
        LUBRICATE SWING CIRCLE....259
        CHECK FAN BELT, ALTERNATOR BELT TENSION, ADJUST....259
        CHECK AIR CONDITIONER COMPRESSOR BELT TENSION, ADJUST....261
      EVERY 500 HOURS MAINTENANCE....262
        LUBRICATING....262
        REPLACE FUEL FILTER CARTRIDGE....264
        CHECK, WASH FUEL STRAINER....266
        CHECK SWING PINION GREASE LEVEL, ADD GREASE....267
        CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE....268
        CLEAN AND INSPECT RADIATOR FINS, OIL COOLER FINS, AFTER COOLER FINS, FUEL COOLER FINS, AND CONDENSER FINS (ONLY MACHINES EQUIPPED WITH AIR CONDI TIONER)....270
        CLEAN AIR CONDITIONER FRESH/RECIRC FILTERS....271
        REPLACE BREATHER ELEMENT IN HYDRAULIC TANK....272
        REPLACE ADDITIONAL FUEL FILTER CARTRIDGE....273
      EVERY 1000 HOURS MAINTENANCE....275
        REPLACE HYDRAULIC OIL FILTER ELEMENT....275
        CHANGE OIL IN SWING MACHINERY CASE....277
        CHECK OIL LEVEL IN DAMPER CASE, ADD OIL....278
        CHECK ALL TIGHTENING PARTS OF TURBOCHARGER....278
        CHECK PLAY TURBOCHARGER ROTOR....278
        REPLACE CORROSION RESISTOR CARTRIDGE....279
        REPLACE HYDRAULIC TANK ADDITIONAL BREATHER ELEMENT....280
        CHECK NITROGEN GAS CHARGE PRESSURE IN ACCUMULATOR (for breaker)....280
      EVERY 2000 HOURS MAINTENANCE....281
        CHANGE OIL IN FINAL DRIVE CASE....281
        CHECK INJECTOR....281
        CLEAN HYDRAULIC TANK STRAINER....282
        CLEAN ENGINE BREATHER....282
        CLEAN, CHECK TURBOCHARGER....283
        CHECK ALTERNATOR, STARTING MOTOR....283
        CHECK ENGINE VALVE CLEARANCE, ADJUST....283
        CHECK VIBRATION DAMPER....283
      EVERY 4000 HOURS MAINTENENCE....284
        CHECK WATER PUMP....284
        CHECK FOR LOOSENESS OF HIGH-PRESSURE CLAMP, HARDENING OF RUBBER....284
        CHECK FOR MISSING FUEL SPRAY PREVENTION CAP, HARDENING OF RUBBER....285
        REPLACE INJECTOR NOZZLE ASSEMBLY....285
      EVERY 5000 HOURS MAINTENANCE....286
        CHANGE OIL IN HYDRAULIC TANK....286
      EVERY 8000 HOURS MAINTENANCE....288
        REPLACE HIGH-PRESSURE PIPING CLAMP....288
        REPLACE FUEL SPRAY PREVENTION CAP....288
  SPECIFICATIONS....290
    SPECIFICATIONS....291
  OPTIONS, ATTACHMENTS....296
    GENERAL PRECAUTIONS FOR SAFETY....297
      PRECAUTIONS WHEN SELECTING....297
      READ THE INSTRUCTION MANUAL THOROUGHLY....297
      PRECAUTIONS WHEN REMOVING OR INSTALLING....297
      PRECAUTIONS WHEN USING....298
    MACHINE READY FOR ATTACHMENT....299
      LOCATIONS....299
      HYDRAULIC CIRCUIT....303
      ATTACHMENT REMOVAL AND INSTALLATION....307
      ATTACHMENT OPERATIONS....309
      LONG TERM STORAGE....311
      SPECIFICATIONS....311
    ATTACHMENT GUIDE....312
      ATTACHMENT COMBINATIONS....312
    RECOMMENDED ATTACHMENT OPERATIONS....314
      HYDRAULIC BREAKER....314
CEBM012503 - Hydraulic Excavator PC400LC-7L Shop Manual....322
  COVER....322
  CONTENTS....323
  FOREWORD....334
    SAFETY....334
      SAFETY NOTICE....334
        IMPORTANT SAFETY NOTICE....334
        GENERAL PRECAUTIONS....334
        PREPARATIONS FOR WORK....334
        PRECAUTIONS DURING WORK....335
    GENERAL....336
    HOW TO READ THE SHOP MANUAL....337
      VOLUMES....337
      DISTRIBUTION AND UPDATING....337
      FILING METHOD....337
      REVISED EDITION MARK....337
      REVISIONS....337
      SYMBOLS....337
    HOISTING INSTRUCTIONS....338
      HOISTING....338
      WIRE ROPES....338
    COATING MATERIALS....339
    STANDARD TIGHTENING TORQUE....341
      STANDARD TIGHTENING TORQUE OF BOLTS AND NUTS....341
      TIGHTENING TORQUE OF HOSE NUTS....342
      TIGHTENING TORQUE OF SPLIT FLANGE BOLTS....342
      TIGHTENING TORQUE FOR FLARED NUTS....342
    ELECTRIC WIRE CODE....343
      CLASSIFICATION BY THICKNESS....343
      CLASSIFICATION BY COLOR AND CODE....343
    CONVERSION TABLES....344
      METHOD OF USING THE CONVERSION TABLE....344
  01 GENERAL....350
    SPECIFICATIONS....351
    WEIGHT TABLE....356
    FUEL COOLANT AND LUBRICANTS....358
  10 STRUCTURE AND FUNCTION....360
    RADIATOR . OIL COOLER . AFTERCOOLER....362
    POWER TRAIN....363
    FINAL DRIVE....364
    SWING MACHINERY....366
    SWING CIRCLE....368
    TRACK FRAME AND RECOIL SPRING....369
    IDLER....371
    CARRIER ROLLER....372
    TRACK ROLLER....373
    TRACK SHOE....375
      TRIPLE GROUSER SHOE....378
    HYDRAULIC SYSTEM....379
      HYDRAULIC PIPING DRAWING....379
      HYDRAULIC TANK....381
      HYDRAULIC PUMP....383
        LS VALVE....388
        PC VALVE....388
      LS(PS)-EPC VALVE....400
      VARIABLE VOLUME VALVE....403
      CONTROL VALVE....405
      MAIN RELIEF VALVE....419
      CLSS (CLOSED CENTER LOAD SENSING SYSTEM)....421
      SELF PRESSURE REDUCING VALVE....424
      SWING MOTOR....427
        RELIEF VALVE....431
        REVERSAL PREVENTION VALVE....433
      CENTER SWIVEL JOINT....435
      TRAVEL MOTOR....436
        PARKING BRAKE....441
      TRAVEL JUNCTION VALVE....447
      CONTROL VALVE....449
      TRAVEL PPC SHUTTLE VALVE....451
      WORK EQUIPMENT . SWING PPC VALVE....454
      TRAVEL PPC VALVE....459
      SERVICE PPC VALVE....467
      SOLENOID VALVE....468
      PPC ACCUMULATOR....470
      RETURN OIL FILTER....471
      BOOM HYDRAULIC DRIFT PREVENTION VALVE....473
      ARM HYDRAULIC DRIFT PREVENTION VALVE....478
      QUICK RETURN VALVE....482
      LIFT CHECK VALVE....484
      ATTACHMENT CIRCUIT SELECTOR VALVE....485
      HOLDING VALVE....487
      HYDRAULIC CYLINDER....491
        BOOM CYLINDER....491
        ARM CYLINDER....491
        BUCKET CYLINDER....491
    WORK EQUIPMENT....493
      DIMENSION ARM....495
      DIMENSION OF BUCKET....497
    AIR CONDITIONER....499
      AIR CONDITIONER PIPING....499
    ENGINE CONTROL....500
      OPERATION OF SYSTEM....500
        STARTING ENGINE....500
        ENGINE SPEED CONTROL....500
        STOPPING ENGINE....500
      COMPONENTS OF SYSTEM....501
        FUEL CONTROL DIAL....501
        ENGINE CONTROLLER....502
    ELECTRONIC CONTROL SYSTEM....505
      CONTROL FUNCTIONS....505
      TOTAL SYSTEM DIAGRAM....507
      ENGINE AND PUMP CONTROL FUNCTION....509
      PUMP/VALVE CONTROL FUNCTION....514
      ONE-TOUCH POWER MAXIMIZING/MACHINE PUSH-UP FUNCTION....517
      AUTO-DECELERATION FUNCTION....519
      AUTO-WARM-UP/OVERHEAT PREVENTION FUNCTION....521
      SWING CONTROL FUNCTION....523
      TRAVEL CONTROL FUNCTION....525
      ATT FLOW CONTROL, CIRCUIT SELECTOR FUNCTION (IF EQUIPMENT)....527
      SYSTEM COMPONENT PARTS....528
        ENGINE REVOLUTION SENSOR....528
        PPC OIL PRESSURE SWITCH....529
        PUMP PRESSURE SENSOR....530
        PUMP CONTROLLER....531
    MONITOR SYSTEM....534
      MONITOR CONTROL, DISPLAY PORTION....537
        MONITOR PORTION....537
        MONITOR ITEMS AND DISPLAY....538
        SWITCHES....542
        SELECT MODE FUNCTION....545
        MAINTENANCE FUNCTION....548
        SERVICE METER CHECK FUNCTION....551
        DISPLAY LCD CHECK FUNCTION....551
    SENSOR....553
      ENGINE OIL LEVER SENSOR....553
      ENGINE OIL PRESSURE SENSOR (FOR LOW PRESSURE)....553
      COOLANT TEMPERATURE SENSOR....554
      HYDRAULIC OIL TEMPERATURE SENSOR....554
      FUEL LEVEL SENSOR....554
      AIR CLEANER CLOGGING SENSOR....555
  20 TESTING, ADJUSTING AND TROUBLESHOOTING....556
    STANDARD VALUE TABLE FOR ENGINE....557
    STANDARD VALUE TABLE FOR CHASSIS....558
    TESTING AND ADJUSTING....568
      SERVICE TOOLS....569
      MEASURING ENGINE SPEED....571
      ENGINE....572
        FUEL....572
          BLEEDING AIR FROM FUEL CIRCUIT....572
          FUEL PRESSURE....572
          HANDLING FUEL SYSTEM DEVICES....572
          INSPECTION OF FUEL CIRCUIT FOR LEAKAGE....572
          RELEASING RESIDUAL FUEL SYSTEM PRESSURE....572
        ADJUSTING ENGINE SPEED SENSOR....572
        ADJUSTING VALVE CLEARANCE....572
        BLOW-BY PRESSURE....572
        COMPRESSION PRESSURE....572
        ENGINE OIL PRESSURE....572
        ENGINE SPEED SENSOR....572
        EXHAUST GAS COLOR....572
        EXHAUST TEMPERATURE....572
        INTAKE AIR PRESSURE (BOOST PRESSURE)....572
      FAN BELT AND ALTERNATOR BELT TENSION....573
      AIR CONDITIONER COMPRESSOR BELT TENSION....574
      SWING CIRCLE BEARING CLEARANCE....575
      TRACK SHOE TENSION....576
      WORK EQUIPMENT, SWING, AND TRAVEL OIL CIRCUITS....577
      CONTROL CIRCUIT - BASIC PRESSURE....582
      PUMP PC CONTROL CIRCUIT....583
      PUMP LS CONTROL CIRCUIT....587
      SOLENOID VALVE - OUTPUT PRESSURE....592
      PPC VALVE - OUTPUT PRESSURE....595
      WORK EQUIPMENT PPC VALVE - PLAY ADJUSTMENT....597
      SWING PPC VALVE - PLAY ADJUSTMENT....597
      WORK EQUIPMENT - HYDRAULIC DRIFT - CAUSE....598
      RELEASING RESIDUAL PRESSURE HYDRAULIC CIRCUIT....600
      MEASURING OIL LEAKAGE....601
      BLEEDING AIR FROM EACH PART....604
      DIODE TESTING PROCEDURE....607
      MONITOR PANEL - SPECIAL FUNCTIONS....608
      HANDLING OF ENGINE CONTROLLER....634
      PREPARATION WORK FOR TROUBLESHOOTING....635
      PM CLINIC SERVICE....637
      UNDERCARRIAGE INSPECTION....643
    TROUBLESHOOTING GENERAL....644
      POINTS TO REMEMBER WHEN TROUBLESHOOTING....646
      SEQUENCE OF EVENTS IN TROUBLESHOOTING....648
      POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE....649
        POINTS TO REMEMBER WHEN HANDLING ELECTRIC EQUIPMENT....649
          HANDLING WIRING HARNESSES AND CONNECTORS....649
          REMOVING, INSTALLING, AND DRYING CONNECTORS AND WIRING HARNESSES....651
          HANDLING CONTROL BOX....654
        POINTS TO REMEMBER WHEN TROUBLESHOOTING ELECTRIC CIRCUITS....655
        POINTS TO REMEMBER WHEN HANDLING HYDRAULIC EQUIPMENT....655
      CHECKS BEFORE TROUBLESHOOTING....657
      CLASSIFICATION AND STEPS FOR TROUBLESHOOTING....658
        CLASSIFICATION OF TROUBLESHOOTING....658
        STEPS FOR TROUBLESHOOTING....658
        PHENOMENA CONSIDERED TO BE FAILURES AND TROUBLESHOOTING NOS....659
      CONNECTOR ARRANGEMENT DRAWING....662
        CONNECTORS LIST....662
        CONNECTOR LOCATION DIAGRAM....667
        MONITOR PANEL SYSTEM CIRCUIT DIAGRAM (M CIRCUIT)....673
        ENGINE CONTROL SYSTEM CIRCUIT DIAGRAM (E CIRCUIT)....674
        PUMP CONTROLLER SYSTEM CIRCUIT DIAGRAM (P CIRCUIT)....675
      CONNECTION TABLE FOR CONNECTOR PIN NUMBERS....676
      T-BRANCH BOX AND T-BRANCH TABLE....697
      CONNECTION TABLE OF FUSE BOX....701
    TROUBLESHOOTING ERROR CODES IN MONITOR SYSTEM....702
      POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM....707
        POINTS TO REMEMBER IF ABNORMALITY RETURNS TO NORMAL BY ITSELF....708
        USER CODE MEMORY RETENTION FUNCTION....708
      INFORMATION CONTAINED IN TESTING PROCEDURES....709
      E101....711
        ERROR IN DATA HISTORY....711
      E112....713
        SHORT OR OPEN IN WIPER MOTOR DRIVE SYSTEM....713
      E113....715
        SHORT OR OPEN IN REVERSE ROTATION OF WIPER MOTOR DRIVE....715
      E114....717
        SHORT OR OPEN IN WINDOW WASHER SYSTEM....717
      E115....719
        ABNORMAL WIPER MOTOR OPERATION....719
      E116....721
        ABNORMALITY IN PARKING WIPER ARM....721
      E117....723
        ENGINE CONTROLLER S-NET COMMUNICATION ERROR....723
      E118....725
        PUMP CONTROLLER S-NET COMMUNICTION ERROR....725
      E128....727
        MONITOR COMMUNICATION ABNORMALITY....727
      E201....729
        SHORT OR OPEN IN TRAVEL INTERLOCKING SOLENOID....729
      E203....731
        SHORT IN SWING AND PARKING SOLENOID CONTROLLER SYSTEM....731
      E204....733
        SHORT IN MERGE/DIVIDE SOLENOID....733
      E205....735
        SHORT IN 2-STAGE RELIEF SOLENOID....735
      E206....737
        SHORT IN TRAVEL SPEED SHIFT SOLENOID....737
      E211....739
        OPEN IN TRAVEL INTERLOCKING SOLENOID....739
      E213....741
        OPEN IN SWING HOLDING BRAKE SOLENOID....741
      E214....743
        OPEN IN MERGE/DIVIDE SOLENOID....743
      E215....745
        OPEN IN 2-STAGE RELIEF SOLENOID....745
      E216....747
        OPEN IN TRAVEL SPEED SOLENOID....747
      E217....749
        ABNORMAL INPUT MODEL CODE....749
      E218....751
        OPEN IN S-NET COMMUNICATION SIGNAL....751
      E222....753
        SHORT IN LS-EPC SOLENOID....753
      E223....755
        OPEN IN LS-EPC SOLENOID SYSTEM....755
      E224....757
        ABNORMAL F-PUMP PRESSURE SENSOR SIGNAL....757
      E225....759
        ABNORMAL R-PUMP PRESSURE SENSOR SIGNAL....759
      E226....761
        ABNORMAL PRESSURE SENSOR POWER SUPPLY....761
      E227....763
        ABNORMALITY IN ENGINE ROTATION (RPM) SENSOR....763
      E228....765
        SHORT IN ATTACHMENT RETURN SWITCHING RELAY....765
      E232....767
        SHORT IN PC-EPC SOLENOID....767
      E233....769
        OPEN IN PC-EPC SOLENOID....769
      E238....771
        OPEN IN ATTACHMENT RETURN SWITCHING RELAY....771
      E245....773
        SHORT IN ATTACHMENT OIL FLOW RATE ADJUSTING EPC SYSTEM....773
      E246....775
        OPEN IN ATTACHMENT OIL FLOW RATE ADJUSTING EPC SYSTEM....775
      E247....777
        ABNORMALITY IN ARM IN PPC PRESSURE SENSOR....777
      E248....779
        ABNORMALITY IN BUCKET CURL PPC PRESSURE SENSOR....779
      E257....781
        ABNORMALITY IN PUMP....781
      E315....783
        SHORT IN BATTERY RELAY SYSTEM....783
      E91B....785
        ENGNE NE SENSOR PROBLEM....785
      E91C....787
        ENGINE G SENSOR PROBLEM....787
      E920....789
        ENGINE TYPE SELECTION ERROR....789
      E921....791
        ENGINE TYPE MISMATCH....791
      E931....793
        FUEL DIAL SYSTEM ERROR....793
      E934....795
        ENGINE COOLANT SENSOR HI ERROR....795
      E96A....797
        ENGINE COOLANT SENSOR LO ERROR....797
      E936....799
        ENGINE OIL PRESSURE SWITCH ERROR....799
      E93C....801
        ENGINE BOOST SENSOR ERROR....801
      E93D....803
        ENGINE FUEL TEMPERATURE SENSOR ERROR....803
      E953....805
        ENGINE COMMUNICATION ABNORMALITY....805
      E954....807
        SHORT IN ENGINE IGNITION SWITCH....807
      E955....809
        ENGINE S-NET ERROR....809
      E956....811
        ENGINE POWER FAILURE (1)....811
      E957....813
        ENGINE POWER FAILURE (2)....813
      E95A....815
        ENGINE Q-ADJUSTMENT SWITCH SIGNAL ERROR....815
      E970....817
        PCV1 OVER CURRENT....817
      E971....819
        PCV2 OVER CURRENT....819
      E974....821
        PCV1 LINE CUT....821
      E975....823
        PCV2 LINE CUT....823
      E977....825
        RAIL PRESSURE SENSOR ERROR....825
      E979....827
        RAIL PRESSURE HIGH....827
      E97A....828
        RAIL PRESSURE ABNORMAL HIGH....828
      E97B....829
        RAIL PRESSURE LOW....829
      E97C....831
        RAIL PRESSURE TOO LOW....831
      E97D....832
        RAIL PRESSURE OUT OF CONTROL....832
      E980....833
        ENGINE CONTROLLER ABNORMALITY....833
      E981....835
        FUEL INJECTOR 1 DISCONNECTION....835
      E982....836
        FUEL INJECTOR 2 DISCONNECTION....836
      E983....837
        FUEL INJECTOR 3 DISCONNECTION....837
      E984....838
        FUEL INJECTOR 4 DISCONNECTION....838
      E985....839
        FUEL INJECTOR 5 DISCONNECTION....839
      E986....840
        FUEL INJECTOR 6 DISCONNECTION....840
      E98A....841
        FUEL INJECTOR 1 - 3 S/C....841
      E98B....843
        FUEL INJECTOR 4 - 6 S/C....843
      A000N1....845
        ENGINE HIGH IDLELING SPEED OUT OF STANDARD....845
      A000N2....846
        ENGINE LOW IDLING SPEED OUT OF STANDARD....846
      AA10NX....847
        AIR CLEANER CLOGGED....847
      AB00KE....849
        CHARGE VOLTAGE LOW....849
      B@BAZG....851
        ENGINE OIL PRESSURE LOW....851
      B@BAZK....853
        ENGINE OIL LEVEL LOW....853
      B@BCNS....855
        ENGINE WATER OVERHEAT....855
      B@BCZK....857
        ENGINE WATER LEVEL LOW....857
      B@HANS....859
        HYDRAULIC OIL OVERHEAT....859
    TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)....862
      BEFORE CARRYING OUT TROUBLESHOOTING....864
        CONNECTION TABLE OF FUSE BOX....864
      POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM....865
        POINTS TO REMEMBER IF ABNORMALITY RETURNS TO NORMAL BY ITSELF....866
        USER CODE MEMORY RETENTION FUNCTION....866
      INFORMATION CONTAINED IN TESTING PROCEDURES....867
      E-1....869
        THE ENGINE DOES NOT CRANK....869
      E-2....872
        PREHEATER DOES NOT OPERATE....872
          PREHEATING MONITOR DOES NOT LIGHT....872
          HEATER UNIT DOES NOT WARM....873
      E-3....875
        AUTO ENGINE WARM-UP DEVICE DOES NOT WORK....875
      E-4....876
        AUTO-DECELERATOR DOES NOT OPERATE....876
      E-5....877
        ALL WORK EQUIPMENT, SWING AND TRAVEL DO NOT OPERATE....877
      E-6....879
        ONE-TOUCH POWER MAX. FUNCTION DOES NOT OPERATE....879
      E-7....881
        MACHINE PUSH-UP FUNCTION DOES NOT OPERATE NORMALLY....881
          MACHINE PUSH-UP FUNCTION DOES NOT OPERATE....881
          MACHINE PUSH-UP FUNCTION IS NOT TURNED OFF....882
      E-8....885
        ATTACHMENT CIRCUIT DOES NOT CHANGE....885
      E-9....887
        NO DISPLAY IN MONITOR PANEL AT ALL....887
      E-10....889
        PART OF DISPLAY ON MONITOR PANEL IS MISSING....889
      E-11....889
        MONITOR PANEL DISPLAYS CONTENTS IRRELEVANT TO THE MODEL....889
      E-12....890
        FUEL LEVEL MONITOR RED LAMP LIGHTS UP WHILE ENGINE IS RUNNING....890
      E-13....891
        ENGINE WATER TEMPERATURE GAUGE DOES NOT DISPLAY CORRECTLY....891
      E-14....893
        HYDRAULIC OIL TEMPERATURE GAUGE DOES NOT DISPLAY CORRECTLY....893
      E-15....895
        FUEL GAUGE DOES NOT DISPLAY CORRECTLY....895
      E-16....897
        SWING LOCK MONITOR DOES NOT DISPLAY CORRECTLY....897
      E-17....899
        WHEN MONITOR SWITCH IS OPERATED, NOTHING IS DISPLAYED....899
      E-18....901
        WINDSHIELD WIPER AND WINDOW WASHER DO NOT WORK....901
          WINDSHIELD WIPER DOES NOT WORK....901
          WINDSHIELD WASHER DOES NOT OPERATE....903
      E-19....905
        ALARM BUZZER CANNOT BE CANCELLED....905
      E-20....907
        “BOOM RAISE” IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....907
      E-21....909
        “BOOM LOWER” IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....909
      E-22....911
        “ARM IN” IS NOT DISPLAYED NORMALLY IN MONITORING FUNCTION....911
      E-23....912
        “ARM DUMPING” IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....912
      E-24....914
        “BUCKET CURL” IS NOT DISPLAYED NORMALLY IN MONITORING FUNCTION....914
      E-25....915
        “BUCKET DUMPING” IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....915
      E-26....917
        “SWING” IS NOT DISPLAYED NORMALLY IN MONITORING FUNCTION....917
      E-27....919
        “TRAVEL” IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....919
      E-28....921
        “TRAVEL DIFFERENTIAL PRESSURE” IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....921
      E-29....923
        “SERVICE” IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....923
      E-30....925
        TRAVEL ALARM DOES NOT SOUND OR DOES NOT STOP SOUNDING....925
      E-32....927
        TROUBLESHOOTING FOR AIR CONDITIONER SYSTEM....927
          TROUBLESHOOTING PROCEDURE FOR AIR CONDITIONER SYSTEM....927
          TROUBLESHOOTING BY SELF-DIAGNOSIS NOTICE....927
          E-32-E11 DISCONNECTION IN RECIRCULATED AIR SENSOR....928
          E-32-E12 SHORT CIRCUIT IN RECIRCULATED AIR SPACE....928
          E-32-E15 DISCONNECTION IN WATER TEMPERATURE SENSOR....929
          E-32-E16 SHORT CIRCUIT IN WATER TEMPERATURE SENSOR....929
          E-32-E18 SHORT IN DAYLIGHT SENSOR....930
          E-32-E43 ABNORMALITY IN AIR OUTLET DAMPER....930
          E-32-E44 ABNORMALITY IN AIR MIX DAMPER....931
          E-32-E45 ABNORMALITY IN RECIRCULATED AND FRESH AIR DAMPER....931
          E-32 - TROUBLESHOOTING BY FAILURE PHENOMENON....933
    TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE)....938
      SYSTEM CHART FOR HYDRAULIC AND MECHANICAL SYSTEMS....940
      INFORMATION CONTAINED IN TROUBLESHOOTING TABLE....942
      H-1....943
        ALL WORK EQUIPMENT LACK POWER, OR TRAVEL AND SWING SPEEDS ARE SLOW....943
      H-2....944
        ENGINE SPEED SHARPLY DROPS OR ENGINE STALLS....944
      H-3....945
        NO WORK EQUIPMENT, TRAVEL OR SWING MOVE....945
      H-4....945
        ABNORMAL NOISE IS HEARD FROM AROUND HYDRAULIC PUMP....945
      H-5....946
        AUTO-DECELERATOR DOES NOT WORK....946
      H-6....946
        FINE CONTROL MODE DOES NOT FUNCTION....946
      H-7....947
        BOOM MOVES SLOWLY OR LACKS POWER....947
      H-8....948
        ARM MOVES SLOWLY OR LACKS POWER....948
      H-9....949
        BUCKET MOVES SLOWLY OR LACKS POWER....949
      H-10....949
        WORK EQUIPMENT DOES NOT MOVE IN ITS SINGLE OPERATION....949
      H-11....950
        WORK EQUIPMENT HYDRAULIC DRIFT TOO FAST....950
      H-12....951
        WORK EQUIPMENT HAS BIG TIME LAG....951
      H-13....951
        OTHER WORK EQUIPMENT MOVES WHEN RELIEVING SINGLE CIRCUIT....951
      H-14....951
        ONE-TOUCH POWER MAX. FUNCTION DOES NOT WORK....951
      H-15....952
        MACHINE PUSH-UP FUNCTION DOES NOT WORK....952
      H-16....952
        IN COMPOUND OPERATION, WORK EQUIPMENT WITH LARGER LOAD MOVES SLOWLY....952
      H-17....953
        IN SWING + BOOM RAISE OPERATION, BOOM MOVES SLOWLY....953
      H-18....953
        IN SWING + TRAVEL, TRAVEL SPEED DROPS SHARPLY....953
      H-19....954
        MACHINE SWERVES IN TRAVEL....954
      H-20....955
        MACHINE TRAVELS SLOWLY....955
      H-21....956
        MACHINE CANNOT BE EASILY STEERED OR LACKS POWER....956
      H-22....957
        TRAVEL SPEED DOES NOT SHIFT, OR IT IS SLOWER OR FASTER THAN PRESET SPEED....957
      H-23....957
        TRACK SHOE DOES NOT TURN (ON ONE SIDE ONLY)....957
      H-24....958
        MACHINE DOES NOT SWING....958
      H-25....959
        SWING ACCELERATION IS POOR, OR SWING SPEED IS SLOW....959
      H-26....960
        EXCESSIVE OVERRUN WHEN STOPPING SWING....960
      H-27....961
        THERE IS BIG SHOCK WHEN STOPPING SWING....961
      H-28....961
        THERE IS BIG ABNORMAL NOISE CAUSED WHEN STOPPING SWING....961
      H-29....962
        SWING NATURAL DRIFT IS TOO BIG....962
      H-30....963
        ATTACHMENT CIRCUIT DOES NOT CHANGE....963
      H-31....963
        FLOW RATE IN ATTACHMENT CIRCUIT CANNOT BE ADJUSTED....963
  30 DISASSEMBLY AND ASSEMBLY....964
    HOW TO READ THIS MANUAL....968
      REMOVAL AND INSTALLATION OF ASSEMBLIES....968
      DISASSEMBLY AND ASSEMBLY OF ASSEMBLIES....968
    PRECAUTIONS DURING OPERATION....970
      PRECAUTIONS WHEN CARRYING OUT REMOVAL WORK....970
      PRECAUTIONS WHEN CARRYING OUT INSTALLATION WORK....971
      PRECAUTIONS WHEN COMPLETING THE OPERATIONS....972
      OTHER PRECAUTIONS....972
    SPECIAL TOOL LIST....973
      SKETCHES OF SPECIAL TOOLS....978
    CONNECTOR REPAIR PROCEDURES....980
      CONTACT TERMINAL REMOVAL (HD30 TYPE)....980
      STRIPING INSULATION....981
      CRIMPING CONTACT TERMINAL (HD30 TYPE)....982
      INSERTION OF CONTACT TERMINAL (HD30 TYPE)....983
      CONTACT TERMINAL REMOVAL (DT TYPE)....984
      STRIPING INSULATION....985
      CRIMPING CONTACT TERMINAL (DT TYPE)....986
      INSERTION OF CONTACT TERMINAL (DT TYPE)....987
    ENGINE....988
      AFTERCOOLER....988
      ALTERNATOR....988
      CYLINDER HEAD....988
      ENGINE FRONT SEAL....988
      ENGINE OIL COOLER....988
      ENGINE REAR SEAL....988
      FUEL INJECTION PUMP....988
      NOZZLE HOLDER....988
      NOZZLE TIP....988
      STARTING MOTOR....988
      THERMOSTAT....988
      TURBOCHARGER....988
      WATER PUMP....988
    RADIATOR....989
      REMOVAL....989
      INSTALLATION....991
    HYDRAULIC OIL COOLER....992
      REMOVAL....992
      INSTALLATION....993
    ENGINE AND HYDRAULIC PUMP....994
      REMOVAL....994
      INSTALLATION....999
    SWING CIRCLE....1000
      REMOVAL....1000
      INSTALLATION....1000
    SWING MOTOR AND SWING MACHINERY....1001
      REMOVAL....1001
      INSTALLATION....1002
      DISASSEMBLY....1003
      ASSEMBLY....1007
    SPROCKET....1013
      REMOVAL....1013
      INSTALLATION....1013
    TRAVEL MOTOR AND FINAL DRIVE....1014
      REMOVAL....1014
      INSTALLATION....1014
    FINAL DRIVE....1015
      DISASSEMBLY....1015
      ASSEMBLY....1020
    CARRIER ROLLER....1025
      ASSEMBLY....1025
    TRACK ROLLER....1027
      ASSEMBLY....1027
    IDLER....1028
      DISASSEMBLY....1028
      ASSEMBLY....1029
    RECOIL SPRING....1032
      DISASSEMBLY....1032
      ASSEMBLY....1033
    TRACK SHOE....1034
      EXPANSION....1034
      INSTALLATION....1035
    AIR CONDITIONER UNIT....1036
      REMOVAL....1036
      INSTALLATION....1038
    OPERATOR’S CAB....1039
      REMOVAL....1039
      INSTALLATION....1041
    MONITOR....1042
      REMOVAL....1042
      INSTALLATION....1042
    PUMP CONTROLLER....1043
      REMOVAL....1043
      INSTALLATION....1043
    ENGINE CONTROLLER....1044
      REMOVAL....1044
      INSTALLATION....1044
    REVOLVING FRAME....1045
      REMOVAL....1045
      INSTALLATION....1047
    COUNTERWEIGHT....1048
      REMOVAL....1048
      INSTALLATION....1048
    HYDRAULIC TANK....1049
      REMOVAL....1049
      INSTALLATION....1050
    HYDRAULIC PUMP....1051
      REMOVAL....1051
      INSTALLATION....1053
    OIL SEAL IN HYDRAULIC PUMP INPUT SHAFT....1054
      REMOVAL....1054
      INSTALLATION....1054
    CONTROL VALVE....1055
      REMOVAL....1055
      INSTALLATION....1058
      REPLACEMENT PROCEDURE FOR PRESSURE COMPENSATION VALVE SEAL....1059
      ASSEMBLY....1061
    CENTER SWIVEL JOINT....1064
      REMOVAL....1064
      INSTALLATION....1065
      DISASSEMBLY....1066
      ASSEMBLY....1066
    WORK EQUIPMENT PPC VALVE....1067
      ASSEMBLY....1067
    TRAVEL PPC VALVE....1068
      DISASSEMBLY....1068
      ASSEMBLY....1068
    HYDRAULIC CYLINDER....1069
      DISASSEMBLY....1069
      ASSEMBLY....1072
    WORK EQUIPMENT....1076
      REMOVAL....1076
      INSTALLATION....1078
    OPERATOR’S CAB GLASS....1079
      REMOVAL....1080
      INSTALLATION....1081
    FRONT WINDOW....1090
      REMOVAL....1090
      INSTALLATION....1093
  90 OTHERS....1098
    HYDRAULIC....1100
      HYDRAULIC DIAGRAM SHEET 1/2 (PART 1 OF 4) FOLDOUT 1....1100
      HYDRAULIC DIAGRAM SHEET 1/2 (PART 2 OF 4) FOLDOUT 2....1102
      HYDRAULIC DIAGRAM SHEET 1/2 (PART 3 OF 4) FOLDOUT 3....1104
      HYDRAULIC DIAGRAM SHEET 1/2 (PART 4 OF 4) FOLDOUT 4....1106
      HYDRAULIC DIAGRAM SHEET 2/2 (PART 1 OF 4) FOLDOUT 5....1108
      HYDRAULIC DIAGRAM SHEET 2/2 (PART 2 OF 4) FOLDOUT 6....1110
      HYDRAULIC DIAGRAM SHEET 2/2 (PART 3 OF 4) FOLDOUT 7....1112
      HYDRAULIC DIAGRAM SHEET 2/2 (PART 4 OF 4) FOLDOUT 8....1114
    ELECTRICAL....1116
      ELECTRICAL DIAGRAM SHEET 1/5 (PART 1 OF 2) FOLDOUT 9....1116
      ELECTRICAL DIAGRAM SHEET 1/5 (PART 2 OF 2) FOLDOUT 10....1118
      ELECTRICAL DIAGRAM SHEET 2/5 (PART 1 OF 1) FOLDOUT 11....1120
      ELECTRICAL DIAGRAM SHEET 3/5 (PART 1 OF 1) FOLDOUT 12....1122
      ELECTRICAL DIAGRAM SHEET 4/5 (PART 1 OF 2) FOLDOUT 13....1124
      ELECTRICAL DIAGRAM SHEET 4/5 (PART 2 OF 2) FOLDOUT 14....1126
      ELECTRICAL DIAGRAM SHEET 5/5 (PART 1 OF 2) FOLDOUT 15....1128
      ELECTRICAL DIAGRAM SHEET 5/5 (PART 2 OF 2) FOLDOUT 16....1130
      M CIRCUIT (MONITOR PANEL SYSTEM DIAGRAM) (PART 1 OF 2) FOLDOUT 17....1132
      M CIRCUIT (MONITOR PANEL SYSTEM DIAGRAM) (PART 2 OF 2) FOLDOUT 18....1134
      E CIRCUIT (ENGINE CONTROL SYSTEM DIAGRAM) (PART 1 OF 2) FOLDOUT 19....1136
      E CIRCUIT (ENGINE CONTROL SYSTEM DIAGRAM) (PART 2 OF 2) FOLDOUT 20....1138
      P CIRCUIT (PUMP CONTROLLER SYSTEM DIAGRAM) (PART 1 OF 4) FOLDOUT 21....1140
      P CIRCUIT (PUMP CONTROLLER SYSTEM DIAGRAM) (PART 2 OF 4) FOLDOUT 22....1142
      P CIRCUIT (PUMP CONTROLLER SYSTEM DIAGRAM) (PART 3 OF 4) FOLDOUT 23....1144
      P CIRCUIT (PUMP CONTROLLER SYSTEM DIAGRAM) (PART 4 OF 4) FOLDOUT 24....1146

Komatsu Hydraulic Excavators PC400LC-L Series Repair Service Manuals