Komatsu Hydraulic Excavators PC1250, PC1250LC, PC1250SP Repair Service Manual

Complete service repair manual with Electrical Wiring Diagrams for Komatsu Hydraulic Excavators PC1250-7, PC1250LC-7, PC1250SP-7, PC1250-8, PC1250LC-8, PC1250SP-8, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.

Komatsu Hydraulic Excavators PC1250-7, PC1250LC-7, PC1250SP-7, PC1250-8, PC1250LC-8, PC1250SP-8 workshop service repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.

PRODUCT DETAILS:
Total Pages: 4,484 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English

SEBM027311 - Hydraulic Excavator PC1250-7, PC1250LC-7, PC1250SP-7 Shop Manual.pdf
SEN00889-17 - Hydraulic Excavator PC1250-8, PC1250LC-8, PC1250SP-8 Shop Manual.pdf
GEN00015-03 - Hydraulic Excavator PC1250-7, PC1250LC-7, PC1250SP-7 Field Assembly Instruction.pdf
GEN00055-08 - Hydraulic Excavator PC1250-8, PC1250LC-8, PC1250SP-8 Field Assembly Instruction.pdf
TEN00146-02 - Hydraulic Excavator PC1250-8, PC1250LC-8, PC1250SP-8 Operation & Maintenance Manual.pdf
TEN00223-03 - Hydraulic Excavator PC1250-8, PC1250LC-8, PC1250SP-8 Operation & Maintenance Manual.pdf
TEN00291-00 - Hydraulic Excavator PC1250-7, PC1250LC-7, PC1250SP-7 Operation & Maintenance Manual.pdf
TEN00362-01 - Hydraulic Excavator PC1250-8, PC1250LC-8, PC1250SP-8 Operation & Maintenance Manual.pdf
TEN00503-02- Hydraulic Excavator PC1250-8, PC1250LC-8, PC1250SP-8 Operation & Maintenance Manual.pdf

MAIN SECTIONS
GEN00015-03 - Hydraulic Excavator PC1250-7, PC1250LC-7, PC1250SP-7 Field Assembly Instruction....2
  COVER....2
  FOREWARD....3
  CONTENTS....4
  SPECIFICATIONS....7
  PRECAUTIONS FOR FIELD ASSEMBLY....9
  ASSEMBLING PROCEDURES, APPLICABLE EQUIPMENT AND SCHEDULE....10
  KIT LAYOUT DIAGRAM....11
  TRANSPORTATION....12
  LIST OF ASSEMBLING TOOLS TO BE BROUGHT IN FIELD....19
  TIGHTENING TORQUE....21
  COATING MATERIALS....25
  LIST OF PARTS SENT INDIVIDUALLY....27
  A. ASSEMBLY OF CHASSIS....35
    A-1. Installation of Track Frame....36
    A-2. Supplying Grease to Swing Circle....39
    A-3. Assembly of Upper Structure and Undercarriage....40
    A-4. Installation of Travel Piping....41
    A-5. Installation of Travel Piping Cover....42
    A-6. Installation of Swivel Travel Piping....43
    A-6. Sticking Sheets (Counterweight)....44
    A-7. Installation of Counterweight....46
    A-8. Installation of Steps....47
    A-9. Installation of Left Side Step (With Handrail)....48
    A-10. Installation of Right Side Step....50
    A-11. Installation of Handrail....51
    A-12. Installation of Radiator Cover....52
    A-13. Installation of Intake Air Cap and Muffler Tail Pipe....57
    A-14. Installation of Left Rear-view Mirror....58
    A-15. Installation of Right Rear-view Mirror....59
    A-16. Preparation for Bleeding Air from Travel Motor....60
    A-17. Procedure for Bleeding Air from Hydraulic Circuit....61
    A-18. Tightening Swing Circle Mounting Bolts Permanently....62
    A-19. Testing and Adjusting Track Link....63
    A-20. Inspection of Oil Amount and Water Amount....66
    A-21. Parts To Be Touched Up After Field Assembly....68
  B.ASSEMBLING OF WORK EQUIPMENT OF BACKHOE....69
    B-1. Boom Foot Pin, Boom Cylinder Foot Pin....70
    B-2. Installation of Boom Cylinder Foot....71
    B-3. Installation of Boom Cylinder Hoses....72
    B-4. Installation of Boom Assembly....73
    B-5. Installation of Boom Cylinder....74
    B-6. Installation of Boom Hoses (Between Chassis and Boom)....75
    B-7. Installation of Arm Cylinder....76
    B-8. Installation of Arm Cylinder Hoses....77
    B-9. Installation of Arm Assembly....78
    B-10. Installation of Bucket Cylinder Hoses (Between Boom and Bucket Cylinder)....80
    B-11. Installation of Bucket Assembly....81
    B-12. Clearance Standards for Work Equipment Mount....83
    B-13. Installation of Work Equipment Grease Piping....84
    B-14. Procedure for Bleeding Air from Travel Motor....85
    B-15. Bleeding Air from Swing Motor....87
    B-16. Bleeding Air from Cylinder....88
    B-17. Installation of Work Equipment Electric Wiring....89
    B-18. Installation of Floor Mat....90
    B-19. Greasing Assembled Work Equipment....91
  M.PROCEDURE FOR INSPECTION AND MAINTENANCE AFTER COMPLETION OF ASSEMBLY....93
    M-1. Reassembly of Return Filter (Standard Part o Flushing Part)....94
    M-2. Releasing Pressure from Hydraulic Circuit....97
    M-3. Installation of Work Equipment Flushing Tube....98
    M-4. Flushing Hydraulic Circuit....100
    M-5. Reassembly of Pilot Filter (Flushing Part o Standard Part)....101
  C. PROCEDURE FOR ASSEMBLING WORK EQUIPMENT OF LOADING SHOVEL....103
    TRANSPORTATION POSTURE (ONLY WORK EQUIPMENT)....104
    LIST OF PARTS SENT INDIVIDUALLY....105
    C-1. Installation of Arm Cylinder Bottoms....108
    C-2. Connection of Boom and Arm....109
    C-3. Pulling out Boom Foot Pin and Boom Cylinder Foot Pin....111
    C-4. Installation of Boom and Arm Assembly....112
    C-5. Replacement of Return Filter (Standard Element o Flushing Element)....113
    C-6. Releasing Residual Pressure in Hydraulic Circuit....115
    C-7. Installation of Boom Hoses (Between Chassis and Boom)....116
    C-8. Installation of Flushing Tube for Boom Cylinder Hoses....117
    C-9. Installation of Flushing Tube for Arm Cylinder Hoses....118
    C-10. Installation of Flushing Tube for Bucket Cylinder Hoses....119
    C-11. Installation of Hoses Between Boom and Arm (Bottom Dump)....120
    C-12. Installation of Flushing Tube for Bottom Dump Cylinder Hoses....121
    C-13. Flushing of Hydraulic Circuit....122
    C-14. Replacement of Pilot Filter (Flushing Element o Standard Element)....123
    C-15. Installation of Boom Cylinder Bottoms....124
    C-16. Installation of Boom Cylinder Hoses....125
    C-17. Installation of Boom Cylinder Head Pin....126
    C-18. Installation of Arm Cylinder Hoses....127
    C-19. Installation of Bucket Cylinder....128
    C-20. Installation of Bucket Cylinder Hoses....129
    C-21. Installation of Bucket Assembly....130
    C-22. Installation of Bottom Dump Cylinder Hoses....132
    C-23. Maintenance Standard....133
    C-24. Installation of Working Lamp....134
    C-25. Installation of Work Equipment Greasing Piping....135
    C-26. Bleeding Air from Work Equipment Circuit....136
    C-27. Checking Oil Level in Hydraulic Tank and Adding Oil....137
    C-28. Greasing After Assembling Work Equipment....138
  INSPECTION OF EACH PART AFTER ASSEMBLY OF LOADER....139
  FIELD ASSEMBLY INSPECTION REPORT (BACKHOE)....141
  FIELD ASSEMBLY INSPECTION REPORT (LOADING SHOVEL)....167
GEN00055-08 - Hydraulic Excavator PC1250-8, PC1250LC-8, PC1250SP-8 Field Assembly Instruction....194
  COVER....194
  FOREWARD....195
  CONTENTS....196
  SPECIFICATIONS....199
  PRECAUTIONS FOR FIELD ASSEMBLY....201
  ASSEMBLING PROCEDURES, APPLICABLE EQUIPMENT AND SCHEDULE....202
  KIT LAYOUT DIAGRAM....203
  TRANSPORTATION....204
  LIST OF TOOLS FOR FIELD ASSEMBLING....212
  TIGHTENING TORQUE....213
  COATING MATERIALS....219
  LIST OF PARTS SENT INDIVIDUALLY....221
  A. ASSEMBLY OF CHASSIS....231
    A- 1. Installation of Left and Right Track Frames....232
    A- 2. Installation of Travel Piping....235
    A- 3. Installation of Travel Piping Covers....237
    A- 4. Installation of Steps....239
    A- 5. Filling Swing Circle with Grease....240
    A- 6. Assembly of Upper Structure and Undercarriage....241
    A- 7. Installation of Right Side Steps....243
    A- 8. Installation of Handrails....244
    A- 9. Installation of Swivel Travel Piping....245
    A-10. Sticking Sheet to Counterweight (EU specification)....246
    A-11. Installation of Cover board (To the Counterweight)....247
    A-12. Installation of Counterweight....248
    A-13. Installation of Left Side Steps (Including handrails)....249
    A-14. Installation of Radiator Cover (Standard specification)....252
    A-14. Installation of Radiator Cover (EU specification)....253
    A-15. Installation of Muffler Tail Pipe....257
    A-16. Changing of Mounting Position of Step Light....258
    A-17. Installation of Handrail to the Cab....259
    A-18. Installation of Left Rearview Mirror....260
    A-19. Installation of Right Rearview Mirrors....262
    A-20. Installation of Rearview Mirror (On the Counterweight) (EU specification)....264
    A-21. Preparation for Bleeding Air from Travel Motor....265
    A-22. Procedure for Bleeding Air From Hydraulic Circuit....266
    A-23. Permanent Tightening of Swing Circle Mounting Bolts....267
    A-24. Testing Track Shoe Tension....268
    A-25. Check Fuel, Coolant and Oil Levels....271
    A-26. Parts to be Touched up after Field Assembly....273
  B. ASSEMBLING OF WORK EQUIPMENT OF BACKHOE....275
    B- 1. Installation of Arm Cylinder....276
    B- 2. Installation of Arm Cylinder Hoses....277
    B- 3. Installation of Boom Cylinder Foot....278
    B- 4. Installation of Boom Cylinder Hoses....279
    B- 5. Installation of Boom Foot Dust Seal....280
    B- 6. Installation of Boom Assembly....281
    B- 7. Installation of Boom Cylinder....282
    B- 8. Installation of Boom Hoses (Between machine and boom)....283
    B- 9. Installation of Arm Assembly....284
    B-10. Installation of Bucket Cylinder Hoses between Boom and Bucket Cylinder....286
    B-11. Installation of Bucket Assembly....287
    B-12. Clearance Standard for Installation of Work Equipment....290
    B-13. Installation of Work Equipment Grease Piping....291
    B-14. Procedure for Bleeding Air From Travel Motor....292
    B-15. Bleeding Air from Swing Motor....294
    B-16. Bleeding Air from Cylinder....295
    B-17. Installation of Work Equipment Wiring....296
    B-18. Greasing after Assembling Work Equipment....297
  M. PROCEDURE FOR INSPECTION AND MAINTENANCE AFTER COMPLETION OF ASSEMBLY....299
    M- 1. Replacement of Return Filter (Standard Filter to Flushing Filter)....300
    M- 2. Relieving Remaining Pressure from Hydraulic Circuit....303
    M- 3. Installation of Flushing Tubes....304
    M- 4. Flushing of Hydraulic Circuit....306
    M- 5. Replacement of Pilot Filter (Flushing filter to Standard filter)....307
  C. PROCEDURE FOR ASSEMBLING WORK EQUIPMENT OF LOADING SHOVEL....309
    Transportation posture (only work equipment)....310
    List of parts sent individually....311
    C. Procedure for assembling work equipment of loading shovel....0
      C- 1. Installation of Arm Cylinder Bottoms....314
      C- 2. Connection of Boom and Arm....315
      C- 3. Pulling out Boom Foot Pin and Boom Cylinder Foot Pin....317
      C- 4. Installation of Boom and Arm Assembly....318
      C- 5. Replacement of Return Filter (Standard Element to....319
      C- 6. Releasing Residual Pressure in Hydraulic Circuit....321
      C- 7. Installation of Boom Hoses (Between Chassis and Boom)....322
      C- 8. Installation of Flushing Tube for Boom Cylinder Hoses....323
      C- 9. Installation of Flushing Tube for Arm Cylinder Hoses....324
      C-10. Installation of Flushing Tube for Bucket Cylinder Hoses....325
      C-11. Installation of Hoses Between Boom and Arm (Bottom Dump)....326
      C-12. Installation of Flushing Tube for Bottom Dump Cylinder Hoses....327
      C-13. Installation of Hydraulic Circuit....328
      C-14. Replacement of Pilot Filter (Flushing Element to Standard Element)....329
      C-15. Installation of Boom Cylinder Bottoms....330
      C-16. Installation of Boom Cylinder Hoses....331
      C-17. Installation of Boom Cylinder Head Pin....332
      C-18. Installation of Arm Cylinder Hoses....333
      C-19. Installation of Bucket Cylinder....334
      C-20. Installation of Bucket Cylinder Hos....335
      C-21. Installation of Bucket Assembly....336
      C-22. Installation of Bottom Dump Cylinder Hoses....338
      C-23. Maintenance Standard....339
      C-24. Installation of Working Lamp....340
      C-25. Installation of Work Equipment Greasing Piping....341
      C-26. Bleeding Air from Work Equipment Circuit....342
      C-27. Checking Oil Level in Hydraulic Tank and Adding Oil....343
      C-28. Greasing After Assembling Work Equipment....344
    Inspection of each part after assembly of loader....345
  Field Assembly Inspection Report (Backhoe)....347
  Field Assembly Inspection Report (Loading shovel)....373
SEBM027311 - Hydraulic Excavator PC1250-7, PC1250LC-7, PC1250SP-7 Shop Manual....399
  COVER....399
  CONTENTS....400
  01 GENERAL....427
    SPECIFICATION DIMENSION DRAWINGS....428
    SPECIFICATIONS....432
    WEIGHT TABLE....436
    FUEL, COOLANT AND LUBRICANTS....440
  10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD....441
    PTO....442
    PTO LUBRICATION SYSTEM ....444
    RADIATOR, OIL COOLER, AFTERCOOLER AND FUEL COOLER ....445
    POWER TRAIN....447
    SWING MACHINERY....449
    SWING CIRCLE....451
    FINAL DRIVE ....452
    SPROCKET....455
    TRACK FRAME....457
    IDLER....459
    CARRIER ROLLER ....461
    TRACK ROLLER ....462
    TRACK SHOE ....463
    AIR PIPING DIAGRAM....467
    AIR CIRCUIT DIAGRAM....468
    AIR GOVERNOR....469
    AIR TANK ....469
    SAFETY VALVE....470
    HORN VALVE....470
    GREASE PUMP....471
    HYDRAULIC EQUIPMENT LAYOUT DRAWING....472
    HYDRAULIC TANK ....477
    HYDRAULIC PUMP....478
    NO.1 PUMP....479
    NO.2 PUMP....502
    NO.3 PUMP....507
    LINE OIL FILTER....516
    PILOT OIL FILTER....517
    RETURN OIL FILTER....518
    DRAIN OIL FILTER....519
    L.H.5-SPOOL CONTROL VALVE....520
    R.H.4-SPOOL CONTROL VALVE....524
    SWING 4-SPOOL CONTROL VALVE....528
    STRAIGHT-TRAVEL VALVE....533
    SWING MOTOR....536
    CENTER SWIVEL JOINT....538
    TRAVEL MOTOR....539
    PPC CONTROL RELIEF VALVE....549
    ACCUMULATOR....551
    VALVE CONTROL....552
    WORK EQUIPMENT, SWING PPC VALVE ....553
    TRAVEL PPC VALVE....558
    SOLENOID VALVE....562
    HYDRAULIC CYLINDER....570
    WORK EQUIPMENT....574
    DIMENSIONS OF WORK EQUIPMENT....578
    AIR CONDITIONER....582
    ENGINE CONTROL....583
    HPI ENGINE CONTROL SYSTEM....589
    MACHINE CONTROL SYSTEM....591
    MONITOR SYSTEM....619
    SENSOR....641
  20 TESTING AND ADJUSTING....644
    STANDARD VALUE TABLE FOR ENGINE RELATED PARTS....645
    STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS....649
    TESTING AND ADJUSTING....668
      TOOLS FOR TESTING, ADJUSTING AND TROUBLESHOOTING....669
      MEASURING ENGINE SPEED....672
      MEASURING AIR SUPPLY PRESSURE (BOOST PRESSURE)....673
      MEASURING EXHAUST TEMPERATURE....674
      TROUBLESHOOTING FOR INJECTOR....675
      MEASURING EXHAUST COLOR....676
      ADJUSTING VALVE CLEARANCE....677
      ADJUSTING INJECTOR SET LOAD....678
      MEASURING COMPRESSION PRESSURE....680
      MEASURING BLOW-BY PRESSURE....682
      MEASURING ENGINE OIL PRESSURE....683
      HANDLING EQUIPMENT IN FUEL SYSTEM....684
      MEASURING FUEL CIRCUIT PRESSURE....685
      VISUAL INSPECTION OF RETURN FUEL....687
      ARRANGEMENT OF CONTROL DEVICES FOR HPI....688
      BLEEDING AIR FROM FUEL CIRCUIT....690
      ADJUSTING ENGINE SPEED SENSOR....692
      REPLACING AND ADJUSTING FAN BELT ....693
      TESTING AND ADJUSTING ALTERNATOR AND AIR COMPRESSOR BELT TENSION....694
      TESTING CLEARANCE OF SWING CIRCLE BEARING....696
      MEASURING WEAR OF SPROCKET....697
      TESTING AND ADJUSTING TRACK SHOE TENSION ....698
      TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT....699
      TESTING AND ADJUSTING CONTROL CIRCUIT OIL PRESSURE....705
      TESTING AND ADJUSTING PISTON PUMP CONTROL PRESSURE....706
      TESTING SERVO PISTON STROKE ....713
      MEASURING PPC VALVE OUTPUT PRESSURE AND TESTING SWING PPC SHUTTLE VALVE....714
      MEASURING SOLENOID VALVE OUTPUT PRESSURE....718
      ADJUSTING WORK EQUIPMENT, SWING PPC VALVE....720
      TESTING TRAVEL DEVIATION....721
      TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT....722
      MEASURING OIL LEAKAGE....723
      MEASURING FAN SPEED....727
      MEASURING FAN CIRCUIT OIL PRESSURE....727
      BLEEDING AIR ....729
      RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT....731
      INSPECTION PROCEDURES FOR DIODE....732
      SPECIAL FUNCTION OF MONITOR PANEL....733
      INITIALIZATION PROCEDURES FOR VHMS CONTROLLER....763
      SETTING PROCEDURES FOR REPLACING VHMS CONTROLLER....776
      TESTING AND ADJUSTING DEVICES RELATED TO VHMS ....791
      PM-CLINIC SERVICE....794
    TROUBLESHOOTING....808
      POINTS TO REMEMBER WHEN TROUBLESHOOTING....809
      SEQUENCE OF EVENTS IN TROUBLESHOOTING....810
      POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE....811
      CHECKS BEFORE TROUBLESHOOTING....819
      CLASSIFICATION AND STEPS FOR TROUBLESHOOTING....820
      CONNECTOR ALLOCATION DRAWING AND ELECTRICAL CIRCUIT DIAGRAM FOR EACH SYSTEM....824
      CONNECTION TABLE FOR CONNECTOR PIN NUMBERS....846
      T-BRANCH BOX AND T-BRANCH TABLE....869
      TROUBLESHOOTING WHEN ERROR CODE (ELECTRICAL SYSTEM) AND FAILURE CODE (MECHANICAL SYSTEM) ARE DISPLAYED (1/2)....871
        INFORMATION IN TROUBLESHOOTING TABLE....872
        ERROR CODE IN ELECTRICAL SYSTEM [C111] (ECM MICROPROCESSOR)....874
        ERROR CODE IN ELECTRICAL SYSTEM [C112] (TIMING ACTUATOR STUCK)....874
        ERROR CODE IN ELECTRICAL SYSTEM [C113] (TIMING ACTUATOR CURRENT)....875
        ERROR CODE IN ELECTRICAL SYSTEM [C115] (ENGINE SPEED SENSOR (2))....876
        ERROR CODE IN ELECTRICAL SYSTEM [C116] (TIMING RAIL P. SENSOR)....878
        ERROR CODE IN ELECTRICAL SYSTEM [C117] (TIMING RAIL P. SENSOR)....879
        ERROR CODE IN ELECTRICAL SYSTEM [C118] (FUEL PUMP P. SENSOR)....880
        ERROR CODE IN ELECTRICAL SYSTEM [C119] (FUEL PUMP P. SENSOR)....882
        ERROR CODE IN ELECTRICAL SYSTEM [C121] (ENGINE SPEED SENSOR (1))....882
        ERROR CODE IN ELECTRICAL SYSTEM [C122] (BOOST P. SENSOR)....883
        ERROR CODE IN ELECTRICAL SYSTEM [C123] (BOOST P. SENSOR)....884
        ERROR CODE IN ELECTRICAL SYSTEM [C131] (THROTTLE SENSOR)....885
        ERROR CODE IN ELECTRICAL SYSTEM [C132] (THROTTLE SENSOR)....886
        ERROR CODE IN ELECTRICAL SYSTEM [C135] (OIL P. SENSOR)....887
        ERROR CODE IN ELECTRICAL SYSTEM [C141] (OIL P. SENSOR)....889
        ERROR CODE IN ELECTRICAL SYSTEM [C143] (OIL P. LOW)....889
        ERROR CODE IN ELECTRICAL SYSTEM [C144] (COOLANT T. SENSOR)....890
        ERROR CODE IN ELECTRICAL SYSTEM [C145] (COOLANT  T. SENSOR)....892
        ERROR CODE IN ELECTRICAL SYSTEM [C151] (COOLANT T. HIGH)....892
        ERROR CODE IN ELECTRICAL SYSTEM [C153] (INTAKE MANIFOLD T. SENSOR)....893
        ERROR CODE IN ELECTRICAL SYSTEM [C154] (INTAKE MANIFOLD T. SENSOR)....894
        ERROR CODE IN ELECTRICAL SYSTEM [C221] (AMBIENT AIR P. SENSOR)....895
        ERROR CODE IN ELECTRICAL SYSTEM [C222] (AMBIENT AIR P. SENSOR)....897
        ERROR CODE IN ELECTRICAL SYSTEM [C234] (ENGINE OVERSPEED)....897
        ERROR CODE IN ELECTRICAL SYSTEM [C254] (FSOV CIRCUIT)....898
        ERROR CODE IN ELECTRICAL SYSTEM [C259] (FSOV CIRCUIT)....899
        ERROR CODE IN ELECTRICAL SYSTEM [C261] (FUEL T. HIGH)....899
        ERROR CODE IN ELECTRICAL SYSTEM [C263] (FUEL T. SENSOR)....900
        ERROR CODE IN ELECTRICAL SYSTEM [C265] (FUEL T. SENSOR)....901
        ERROR CODE IN ELECTRICAL SYSTEM [C316] (FUEL PUMP ACTUATOR CURRENT)....902
        ERROR CODE IN ELECTRICAL SYSTEM [C318] (FUEL PUMP ACTUATOR STUCK)....903
        ERROR CODE IN ELECTRICAL SYSTEM [C346] (ECM POWERDOWN)....904
        ERROR CODE IN ELECTRICAL SYSTEM [C423] (TIMING RAIL P. IN RANGE ERROR)....906
        ERROR CODE IN ELECTRICAL SYSTEM [C441] (BATTERY VOLTAGE)....908
        ERROR CODE IN ELECTRICAL SYSTEM [C442] (BATTERY VOLTAGE)....908
        ERROR CODE IN ELECTRICAL SYSTEM [C451] (FUEL RAIL P. SENSOR)....909
        ERROR CODE IN ELECTRICAL SYSTEM [C452] (FUEL RAIL P. SENSOR)....910
        ERROR CODE IN ELECTRICAL SYSTEM [C455] (FUEL RAIL ACTUATOR CURRENT)....911
        ERROR CODE IN ELECTRICAL SYSTEM [C467] (TIMING ACTUATOR CONTROL)....912
        ERROR CODE IN ELECTRICAL SYSTEM [C468] (RAIL ACTUATOR CONTROL)....912
        ERROR CODE IN ELECTRICAL SYSTEM [C514] (RAIL ACTUATOR STUCK)....913
        ERROR CODE IN ELECTRICAL SYSTEM [C554] (FUEL RAIL P. IN RANGE ERROR)....914
      TROUBLESHOOTING WHEN ERROR CODE (ELECTRICAL SYSTEM) AND FAILURE CODE (MECHANICAL SYSTEM) ARE DISPLAYED (2/2)....916
        ERROR CODE IN ELECTRICAL SYSTEM [E101] (ABNORMALITY ERROR RECORD)....918
        ERROR CODE IN ELECTRICAL SYSTEM [E112] (WIPER DRIVE (FOR) S/C)....920
        ERROR CODE IN ELECTRICAL SYSTEM [E113] (WIPER DRIVE (REV) S/C)....924
        ERROR CODE IN ELECTRICAL SYSTEM [E114] (WASHER DRIVE S/C)....926
        ERROR CODE IN ELECTRICAL SYSTEM [E115] (WIPER WORKING ABNORMALITY)....928
        ERROR CODE IN ELECTRICAL SYSTEM [E116] (WIPER PARKING ABNORMALITY)....930
        ERROR CODE IN ELECTRICAL SYSTEM [E201] (CO CANCEL SOL. S/C)....934
        ERROR CODE IN ELECTRICAL SYSTEM [E202] (TRAVEL JUNCTION SOL. S/C)....936
        ERROR CODE IN ELECTRICAL SYSTEM [E203] (SWING BRAKE SOL. S/C)....938
        ERROR CODE IN ELECTRICAL SYSTEM [E204] (2-STAGE RELIEF SOL. S/C)....940
        ERROR CODE IN ELECTRICAL SYSTEM [E205] (SWING PRIORITY SOL. S/C)....942
        ERROR CODE IN ELECTRICAL SYSTEM [E206] (TRAVEL SPEED SOL. S/C)....944
        ERROR CODE IN ELECTRICAL SYSTEM [E207] (FLASH LIGHT RELAY S/C)....946
        ERROR CODE IN ELECTRICAL SYSTEM [E211] (CO CANCEL SOL. DISC.)....948
        ERROR CODE IN ELECTRICAL SYSTEM [E212] (TRAVEL JUNCTION SOL. DISC.)....950
        ERROR CODE IN ELECTRICAL SYSTEM [E213] (SWING BRAKE SOL. DISC.)....952
        ERROR CODE IN ELECTRICAL SYSTEM [E214] (2-STAGE RELIEF SOL. DISC.)....954
        ERROR CODE IN ELECTRICAL SYSTEM [E215] (SWING PRIORITY SOL. DISC.)....956
        ERROR CODE IN ELECTRICAL SYSTEM [E216] (TRAVEL SPEED SOL. DISC.)....958
        ERROR CODE IN ELECTRICAL SYSTEM [E217] (MODEL SELECTION ABNORMALITY)....960
        ERROR CODE IN ELECTRICAL SYSTEM [E218] (S-NET COMM. DISC.)....962
        ERROR CODE IN ELECTRICAL SYSTEM [E221] (J1939 COMM. ERROR)....964
        ERROR CODE IN ELECTRICAL SYSTEM [E222] (WORKING MODE OUTPUT S/C (1))....966
        ERROR CODE IN ELECTRICAL SYSTEM [E223] (WORKING MODE OUTPUT DISC.(1))....967
        ERROR CODE IN ELECTRICAL SYSTEM [E224] (WORKING MODE OUTPUT S/C (2))....968
        ERROR CODE IN ELECTRICAL SYSTEM [E225] (WORKING MODE OUTPUT DISC.(2))....969
        ERROR CODE IN ELECTRICAL SYSTEM [E226] (AUTO-DECELERATION OUTPUT DISC.)....970
        ERROR CODE IN ELECTRICAL SYSTEM [E227] (ENGINE SPEED SENSOR ABNORMALITY)....971
        ERROR CODE IN ELECTRICAL SYSTEM [E228] (AUTO-DECELERATION OUTPUT S/C)....972
        ERROR CODE IN ELECTRICAL SYSTEM [E232] (TVC SOL. S/C)....973
        ERROR CODE IN ELECTRICAL SYSTEM [E233] (TVC SOL. DISC.)....975
        ERROR CODE IN ELECTRICAL SYSTEM [E234] (LEVER NEUTRAL OUTPUT S/C)....977
        ERROR CODE IN ELECTRICAL SYSTEM [E235] (LEVER NEUTRAL OUTPUT DISC.)....978
        ERROR CODE IN ELECTRICAL SYSTEM [E241] (PRE. SENS VOLTAGE FAILURE)....979
        ERROR CODE IN ELECTRICAL SYSTEM [E242] (F PUMP PRE. SENS FAILURE)....981
        ERROR CODE IN ELECTRICAL SYSTEM [E243] (R PUMP PRE. SENS FAILURE)....983
        ERROR CODE IN ELECTRICAL SYSTEM [E244] (SWING PRE. SENS FAILURE)....985
        ERROR CODE IN ELECTRICAL SYSTEM [E245] (HIGH RELIEF PRESS F PUMP)....987
        ERROR CODE IN ELECTRICAL SYSTEM [E246] (HIGH RELIEF PRESS R PUMP)....988
        ERROR CODE IN ELECTRICAL SYSTEM [E247] (HIGH RELIEF PRESS PUMP SWING)....989
        ERROR CODE IN ELECTRICAL SYSTEM [E302] (STEP LIGHT RELAY S/C)....990
        ERROR CODE IN ELECTRICAL SYSTEM [E304] (STEP LIGHT POWER DRIVE RELAY S/C)....992
        ERROR CODE IN ELECTRICAL SYSTEM [E315] (BATTERY RELAY DRIVE S/C)....994
        FAILURE CODE IN VHMS SYSTEM [A000N1] (ENGINE OVER SPEED)....996
        FAILURE CODE IN MECHANICAL SYSTEM [AA10NX] (AIRCLEANER CLOGGING)....997
        FAILURE CODE IN MECHANICAL SYSTEM [AB00KE] (CHARGE VOLTAGE LOW)....999
        FAILURE CODE IN MECHANICAL SYSTEM [B@BAZG] (ENG. OIL PRESS. LOW)....1001
        FAILURE CODE IN MECHANICAL SYSTEM [B@BAZK] (ENG. OIL LEVEL LOW)....1002
        FAILURE CODE IN MECHANICAL SYSTEM [B@BCNS] (ENG. WATER OVERHEAT)....1003
        FAILURE CODE IN MECHANICAL SYSTEM [B@BCZK] (ENG. WATER LVL LOW)....1004
        FAILURE CODE IN VHMS SYSTEM [B@CBNS] (HIGH PTO TEMPERATURE)....1006
        FAILURE CODE IN MECHANICAL SYSTEM [B@HANS] (HYDR. OIL OVERHEAT)....1007
        FAILURE CODE IN VHMS SYSTEM [DBB0KK] (VHMS SOURCE VOLTAGE ERROR)....1008
        FAILURE CODE IN VHMS SYSTEM [DBB5KP] (VHMS 5V SOURCE SYS ERROR)....1010
        FAILURE CODE IN VHMS SYSTEM [DBB6KP] (VHMS 24V SOURCE SYS ERROR)....1011
        FAILURE CODE IN VHMS SYSTEM [DBBQKR] (KOM-NET/C ERROR)....1012
        FAILURE CODE IN VHMS SYSTEM [DBBRKR] (CAN-NET SYS (J1939) ERROR)....1014
        FAILURE CODE IN VHMS SYSTEM [DGE1KB] (ENG OIL TEMP. SENSOR FAILURE)....1016
        FAILURE CODE IN VHMS SYSTEM [DGE1KY] (ENG OIL TEMP. SENSOR FAILURE)....1018
        FAILURE CODE IN VHMS SYSTEM [DGE5KX] (AMBIENT AIR TEMP SENSOR FAILURE)....1020
        FAILURE CODE IN VHMS SYSTEM [DGT3KZ] (PTO TEMP SENSOR FAILURE)....1022
        FAILURE CODE IN VHMS SYSTEM [DGT4KA] (F EXHAUST TEMP. SENSOR FAILURE)....1024
        FAILURE CODE IN VHMS SYSTEM [DGT4KB] (F EXHAUST TEMP. SENSOR FAILURE)....1026
        FAILURE CODE IN VHMS SYSTEM [DGT5KA] (R EXHAUST TEMP. SENSOR FAILURE)....1028
        FAILURE CODE IN VHMS SYSTEM [DGT5KB] (R EXHAUST TEMP. SENSOR FAILURE)....1030
        FAILURE CODE IN VHMS SYSTEM [DHE5KB] (BLOWBY PRES. SENSOR FAILURE)....1032
        FAILURE CODE IN VHMS SYSTEM [DHE5KY] (BLOWBY PRES. SENSOR FAILURE)....1034
        FAILURE CODE IN VHMS SYSTEM [F@BBZL] (HIGH BLOWBY PRESSURE)....1036
        FAILURE CODE IN VHMS SYSTEM [F@BYNR] (HIGH F CYL. EXHAUST TEMP. 2)....1037
        FAILURE CODE IN VHMS SYSTEM [F@BYNS] (HIGH F CYL. EXHAUST TEMP. 1)....1038
        FAILURE CODE IN VHMS SYSTEM [F@BZNR] (HIGH R CYL. EXHAUST TEMP. 2)....1039
        FAILURE CODE IN VHMS SYSTEM [F@BZNS] (HIGH R CYL. EXHAUST TEMP. 1)....1040
        FAILURE CODE IN VHMS SYSTEM [J100KA] (CNT. PUMP PRE. SENS FAILURE)....1041
        FAILURE CODE IN VHMS SYSTEM [J100KA] (FAN PUMP PRE. SENS FAILURE)....1043
        FAILURE CODE IN VHMS SYSTEM [J100KB] (CNT. PUMP PRE. SENS FAILURE)....1045
        FAILURE CODE IN VHMS SYSTEM [J100KB] (FAN PUMP PRE. SENS FAILURE)....1047
        FAILURE CODE IN VHMS SYSTEM [J100L6](ABNOMAL CNT. GEAR PUMP PRESS)....1049
        FAILURE CODE IN VHMS SYSTEM [J10016] (ABNOMAL FAN GEAR PUMP PRESS)....1051
      TROUBLESHOOTING OF ELECTRICAL SYSTEM (E-MODE)....1053
        INFORMATION CONTAINED IN TROUBLESHOOTING TABLE....1054
        E-1 ENGINE DOES NOT START (ENGINE DOES NOT ROTATE)....1055
        E-2 AUTO-DECELERATOR DOES NOT WORK....1058
        E-3 AUTO ENGINE WARM-UP DEVICE DOES NOT WORK....1059
        E-4 PREHEATER DOES NOT WORK....1060
        E-5 ALL WORK EQUIPMENT, SWING AND TRAVEL DO NOT MOVE....1062
        E-6 MACHINE PUSH-UP CIRCUIT DOES NOT WORK....1064
        E-7 BOOM SHOCKLESS CIRCUIT CANNOT BE RESET....1066
        E-8 NO DISPLAY IN MONITOR PANEL AT ALL....1068
        E-9 PART OF DISPLAY ON MONITOR PANEL IS MISSING....1069
        E-10 MONITOR PANEL DISPLAYS CONTENTS IRRELEVANT TO THE MODEL....1069
        E-11 FUEL LEVEL MONITOR RED LAMP LIGHTS UP WHILE ENGINE IS RUNNING....1070
        E-12 HYDRAULIC OIL TEMPERATURE GAUGE DOES NOT DISPLAY CORRECTLY....1071
        E-13 FUEL GAUGE DOES NOT DISPLAY CORRECTLY....1072
        E-14 SWING LOCK MONITOR DOES NOT DISPLAY CORRECTLY....1073
        E-15 WHEN THE MONITOR SWITCH IS OPERATED, NO DISPLAY APPEARS....1074
        E-16 WINDSHIELD WIPER DOES NOT WORK....1075
        E-17 ALARMING BUZZER CANNOT BE CANCELLED....1078
        E-18 "BOOM RAISE" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....1079
        E-19 "BOOM LOWER" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....1080
        E-20 "ARM DIGGING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....1081
        E-21 "ARM DUMPING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....1082
        E-22 "BUCKET DIGGING " IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....1083
        E-23 "BUCKET DUMPING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....1084
        E-24 "SWING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....1085
        E-25 "TRAVEL" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION....1087
        E-26 AIR CONDITIONER DOES NOT WORK....1089
        E-27 TRAVEL ALARM DOES NOT SOUND....1090
        E-28 ANY OF PANEL LAMP, HEAD LAMP, WORKING LAMP (INCLUDING ADDITIONAL LAMP) DOES NOT LIGHT UP....1091
      TROUBLESHOOTING OF HYDRAULIC, MECHANICAL SYSTEM (H MODE)....1095
        BEFORE TROUBLESHOOTING FOR HYDRAULIC AND MECHANICAL SYSTEMS....1096
        INFORMATION IN TROUBLESHOOTING TABLE....1101
        H-1 SPEED OR POWER OF ALL WORK EQUIPMENT, TRAVEL, AND SWING IS LOW....1102
        H-2 ENGINE SPEED LOWERS REMARKABLY OR ENGINE STALLS....1104
        H-3 ALL WORK EQUIPMENT, TRAVEL, AND SWING SYSTEMS DO NOT WORK....1105
        H-4 ABNORMAL SOUND IS HEARD FROM AROUND PUMP....1106
        H-5 SPEED OR POWER OF BOOM IS LOW....1107
        H-6 SPEED OR POWER OF ARM IS LOW....1109
        H-7 SPEED OR POWER OF BUCKET IS LOW....1110
        H-8 BOOM DOES NOT MOVE....1111
        H-9 ARM DOES NOT MOVE....1111
        H-10 BUCKET DOES NOT MOVE....1111
        H-11 HYDRAULIC DRIFT OF WORK EQUIPMENT IS LARGE....1112
        H-12 TIME LAG OF WORK EQUIPMENT IS LARGE....1113
        H-13 BOOM SHOCKLESS FUNCTION CANNOT BE TURNED ON OR OFF....1114
        H-14 MACHINE DEVIATES IN ONE DIRECTION....1114
        H-15 MACHINE DEVIATES LARGELY AT START....1116
        H-16 MACHINE DEVIATES LARGELY DURING COMPOUND OPERATION....1117
        H-17 TRAVEL SPEED OR POWER IS LOW ....1117
        H-18 MACHINE DOES NOT TRAVEL (ONLY ONE TRACK)....1118
        H-19 TRAVEL SPEED DOES NOT CHANGE....1119
        H-20 MACHINE DOES NOT SWING....1120
        H-21 SWING SPEED OR ACCELERATION IS LOW....1121
        H-22 SWING SPEED OR POWER IS LOW IN COMPOUND OPERATION OF TRAVEL AND BUCKET....1122
        H-23 SWING SPEED OR POWER IS LOW IN COMPOUND OPERATION OF TRAVEL AND BOOM IN SWING PRIORITY MODE....1122
        H-24 UPPER STRUCTURE OVERRUNS LARGELY....1123
        H-25 LARGE SHOCKS ARE MADE WHEN UPPER STRUCTURE STOPS SWINGING....1124
        H-26 LARGE ABNORMAL SOUNDS ARE MADE WHEN UPPER STRUCTURE STOPS SWINGING....1125
        H-27 HYDRAULIC DRIFT OF SWING IS LARGE....1125
      TROUBLESHOOTING OF ENGINE BODY (S MODE)....1126
        POINTS TO REMEMBER WHEN TROUBLESHOOTING....1127
        METHOD OF USING TROUBLESHOOTING CHARTS....1128
        S-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME)....1131
        S-2 ENGINE DOES NOT START....1133
        S-3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR)....1138
        S-4 ENGINE STOPS DURING OPERATIONS....1140
        S-5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING)....1142
        S-6 ENGINE LACKS OUTPUT (OR LACKS POWER)....1144
        S-7 EXHAUST SMOKE IS BLACK (INCOMPLETE COMBUSTION)....1146
        S-8 OIL CONSUMPTION IS EXCESSIVE (OR EXHAUST SMOKE IS BLUE)....1148
        S-9 OIL BECOMES CONTAMINATED QUICKLY....1149
        S-10 FUEL CONSUMPTION IS EXCESSIVE....1150
        S-11 OIL IS IN COOLANT, OR COOLANT SPURTS BACK, OR COOLANT LEVEL GOES DOWN....1151
        S-12 OIL PRESSURE CAUTION LAMP LIGHTS UP (DROP IN OIL PRESSURE)....1152
        S-13 OIL LEVEL RISES....1153
        S-14 COOLANT TEMPERATURE BECOMES TOO HIGH (OVERHEATING)....1154
        S-15 ABNORMAL NOISE IS MADE....1155
        S-16 VIBRATION IS EXCESSIVE....1156
  30 DISASSEMBLY AND ASSEMBLY....1157
    HOW TO READ THIS MANUAL ....1160
      REMOVAL AND INSTALLATION OF ASSEMBLIES....1160
      DISASSEMBLY AND ASSEMBLY OF ASSEMBLIES....1161
    PRECAUTIONS WHEN PERFORMING OPERATION....1162
    SPECIAL TOOL LIST ....1164
    REMOVAL AND INSTALLATION OF FUEL PUMP ASSEMBLY....1173
      REMOVAL....1173
      INSTALLATION....1173
    REMOVAL AND INSTALLATION OF ENGINE FRONT SEAL....1174
      SPECIAL TOOLS....1174
      REMOVAL....1174
      INSTALLATION....1174
    REMOVAL AND INSTALLATION OF ENGINE REAR SEAL....1176
      SPECIAL TOOLS....1176
      REMOVAL....1176
      INSTALLATION....1176
    REMOVAL AND INSTALLATION OF CYLINDER HEAD ASSEMBLY....1178
      SPECIAL TOOLS....1178
      REMOVAL....1178
      INSTALLATION....1181
    REMOVAL AND INSTALLATION OF FUEL COOLER AND AIR CONDITIONER ASSEMBLY....1183
      SPECIAL TOOLS....1183
      REMOVAL....1183
      INSTALLATION....1184
    REMOVAL AND INSTALLATION OF AFTERCOOLER ASSEMBLY....1185
      REMOVAL....1185
      INSTALLATION....1185
    REMOVAL AND INSTALLATION OF RADIATOR, HYDRAULIC COOLER ASSEMBLY....1186
      REMOVAL....1186
      INSTALLATION....1187
    REMOVAL AND INSTALLATION OF ENGINE, PTO, HYDRAULIC PUMP ASSEMBLY....1188
      REMOVAL....1188
      INSTALLATION....1191
    REMOVAL AND INSTALLATION OF PTO ASSEMBLY....1192
      REMOVAL....1192
      INSTALLATION....1193
    DISASSEMBLY AND ASSEMBLY OF PTO ASSEMBLY....1194
      DISASSEMBLY....1194
      ASSEMBLY....1195
    REMOVAL AND ASSEMBLY OF FUEL TANK ASSEMBLY....1198
      REMOVAL....1198
      INSTALLATION....1198
    DISASSEMBLY AND ASSEMBLY OF FINAL DRIVE ASSEMBLY....1199
      SPECIAL TOOLS ....1199
      DISASSEMBLY....1199
      ASSEMBLY....1203
      SKETCHES OF SPECIAL TOOLS....1209
    REMOVAL AND INSTALLATION OF REVOLVING FRAME ASSEMBLY....1210
      REMOVAL....1210
      INSTALLATION....1210
    REMOVAL AND INSTALLATION OF SWING MACHINERY ASSEMBLY....1211
      REMOVAL....1211
      INSTALLATION....1211
    DISASSEMBLY AND ASSEMBLY OF SWING MACHINERY ASSEMBLY....1212
      SPECIAL TOOLS ....1212
      DISASSEMBLY....1212
      ASSEMBLY....1215
      SKETCHES OF SPECIAL TOOLS....1219
    REMOVAL AND INSTALLATION OF SWING CIRCLE ASSEMBLY....1221
      REMOVAL....1221
      INSTALLATION....1221
    REMOVAL AND INSTALLATION OF TRACK SHOE ASSEMBLY....1222
      SPECIAL TOOLS ....1222
      REMOVAL....1222
      INSTALLATION....1223
    REMOVAL AND INSTALLATION OF IDLER ASSEMBLY....1224
      REMOVAL....1224
      INSTALLATION....1224
    DISASSEMBLY AND ASSEMBLY OF IDLER ASSEMBLY....1225
      SPECIAL TOOLS ....1225
      DISASSEMBLY....1225
      ASSEMBLY....1226
    DISASSEMBLY AND ASSEMBLY OF IDLER ADJUSTMENT CYLINDER ASSEMBLY....1228
      DISASSEMBLY....1228
      ASSEMBLY....1228
    REMOVAL AND INSTALLATION OF RECOIL SPRING ASSEMBLY....1229
      REMOVAL....1229
      INSTALLATION....1229
    DISASSEMBLY AND ASSEMBLY OF RECOIL SPRING ASSEMBLY ....1231
      SPECIAL TOOLS ....1231
      DISASSEMBLY....1231
      INSTALLATION....1232
      SKETCHES OF SPECIAL TOOLS....1233
    REMOVAL AND INSTALLATION OF CARRIER ROLLER ASSEMBLY....1234
      REMOVAL....1234
      INSTALLATION....1234
    DISASSEMBLY AND ASSEMBLY OF CARRIER ROLLER ASSEMBLY....1235
      SPECIAL TOOLS ....1235
      DISASSEMBLY....1235
      ASSEMBLY....1236
      SKETCHES OF SPECIAL TOOLS....1237
    REMOVAL AND INSTALLATION OF TRACK ROLLER ASSEMBLY....1238
      SPECIAL TOOLS ....1238
      REMOVAL....1238
      INSTALLATION....1238
    DISASSEMBLY AND ASSEMBLY OF TRACK ROLLER ASSEMBLY ....1239
      SPECIAL TOOLS ....1239
      DISASSEMBLY....1239
      ASSEMBLY....1240
    REMOVAL AND INSTALLATION OF HYDRAULIC TANK ASSEMBLY....1242
      REMOVAL....1242
      INSTALLATION....1243
    REMOVAL AND INSTALLATION OF HYDRAULIC PUMP ASSEMBLY....1244
      REMOVAL....1244
      INSTALLATION....1244
    REMOVAL AND INSTALLATION OF MAIN PUMP INPUT SHAFT OIL SEAL....1245
      REMOVAL....1245
      INSTALLATION....1245
    DISASSEMBLY AND ASSEMBLY OF MAIN RELIEF VALVE ASSEMBLY....1246
      DISASSEMBLY....1246
      ASSEMBLY....1246
    REMOVAL AND INSTALLATION OF 5-SPOOL CONTROL VALVE ASSEMBLY (NO. 1)....1247
      REMOVAL....1247
      INSTALLATION....1248
    REMOVAL AND INSTALLATION OF 4-SPOOL CONTROL VALVE ASSEMBLY (NO. 2)....1249
      REMOVAL....1249
      INSTALLATION....1250
    REMOVAL AND INSTALLATION OF 4-SPOOL CONTROL VALVE ASSEMBLY (NO. 3)....1251
      REMOVAL....1251
      INSTALLATION....1252
    DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY (NO. 1)....1253
      DISASSEMBLY....1253
      ASSEMBLY....1254
    DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY (NO. 2)....1256
      DISASSEMBLY....1256
      ASSEMBLY....1257
    DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY (NO. 3)....1260
      DISASSEMBLY....1260
      ASSEMBLY....1261
    REMOVAL AND INSTALLATION OF SWING MOTOR ASSEMBLY....1263
      REMOVAL....1263
      INSTALLATION....1264
    REMOVAL AND INSTALLATION OF CENTER SWIVEL JOINT ASSEMBLY....1265
      REMOVAL....1265
      INSTALLATION....1265
    DISASSEMBLY AND ASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY....1266
      DISASSEMBLY....1266
      ASSEMBLY....1266
    REMOVAL AND INSTALLATION OF TRAVEL MOTOR ASSEMBLY....1267
      SPECIAL TOOLS ....1267
      REMOVAL....1267
      INSTALLATION....1267
    DISASSEMBLY AND ASSEMBLY OF WORK EQUIPMENT PPC VALVE ASSEMBLY....1268
      DISASSEMBLY....1268
      ASSEMBLY....1269
    DISASSEMBLY AND ASSEMBLY OF TRAVEL PPC VALVE ASSEMBLY....1270
      DISASSEMBLY....1270
      ASSEMBLY....1271
    REMOVAL AND INSTALLATION OF BUCKET CYLINDER ASSEMBLY (BACKHOE SPECIFICATION)....1272
      REMOVAL....1272
      INSTALLATION....1273
    REMOVAL AND INSTALLATION OF BUCKET CYLINDER ASSEMBLY (LOADING SHOVEL)....1274
      REMOVAL....1274
      INSTALLATION....1275
    REMOVAL AND INSTALLATION OF BOTTOM DUMP CYLINDER ASSEMBLY (LOADING SHOVEL)....1276
      REMOVAL....1276
      INSTALLATION....1277
    REMOVAL AND INSTALLATION OF ARM CYLINDER ASSEMBLY (BACKHOE SPECIFICATION )....1278
      SPECIAL TOOLS ....1278
      REMOVAL....1278
      INSTALLATION....1279
      SKETCHES OF SPECIAL TOOLS....1280
    REMOVAL AND INSTALLATION OF ARM CYLINDER ASSEMBLY (LOADING SHOVEL)....1281
      REMOVAL....1281
      INSTALLATION....1282
    REMOVAL AND INSTALLATION OF BOOM CYLINDER ASSEMBLY (BACKHOE SPECIFICATION )....1283
      SPECIAL TOOLS ....1283
      REMOVAL....1283
      INSTALLATION....1284
    REMOVAL AND INSTALLATION OF BOOM CYLINDER ASSEMBLY (LOADING SHOVEL )....1285
      REMOVAL....1285
      INSTALLATION....1286
    DISASSEMBLY AND ASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY (BACKHOE SPECIFICATION )....1287
      SPECIAL TOOLS ....1287
      DISASSEMBLY....1287
      ASSEMBLY....1291
    REMOVAL AND INSTALLATION OF BUCKET ASSEMBLY (BACKHOE SPECIFICATION)....1295
      REMOVAL....1295
      INSTALLATION....1296
    REMOVAL AND INSTALLATION OF BUCKET ASSEMBLY (LOADING SHOVEL)....1297
      REMOVAL....1297
      INSTALLATION....1298
    REMOVAL AND INSTALLATION OF ARM ASSEMBLY (BACKHOE SPECIFICATION)....1299
      REMOVAL....1299
      INSTALLATION....1299
    REMOVAL AND INSTALLATION OF ARM ASSEMBLY (LOADING SHOVEL)....1300
      REMOVAL....1300
      INSTALLATION....1301
    REMOVAL AND INSTALLATION OF BOOM ASSEMBLY (BACKHOE SPECIFICATION)....1302
      REMOVAL....1302
      INSTALLATION....1303
    REMOVAL AND INSTALLATION OF BOOM ASSEMBLY (LOADING SHOVEL)....1304
      REMOVAL....1304
      INSTALLATION....1305
    REMOVAL AND INSTALLATION OF OPERATOR'S CAB ASSEMBLY....1306
      REMOVAL....1306
      INSTALLATION....1307
    REMOVAL AND INSTALLATION OF OPERATOR'S CAB GLASS (STUCK GLASS)....1308
      SPECIAL TOOLS ....1309
      REMOVAL....1309
      INSTALLATION....1310
    REMOVAL AND INSTALLATION OF FRONT WINDOW ASSEMBLY....1318
      REMOVAL....1318
      INSTALLATION....1320
    REMOVAL AND INSTALLATION OF COUNTERWEIGHT ASSEMBLY....1324
      REMOVAL....1324
      INSTALLATION....1324
    REMOVAL AND INSTALLATION OF RECEIVER TANK ASSEMBLY....1325
      SPECIAL TOOLS ....1325
      REMOVAL....1325
      INSTALLATION....1325
    REMOVAL AND INSTALLATION OF AIR CONDITIONER COMPRESSOR ASSEMBLY....1326
      SPECIAL TOOLS ....1326
      REMOVAL....1326
      INSTALLATION....1326
    REMOVAL AND INSTALLATION OF VHMS CONTROLLER....1327
      REMOVAL....1327
      INSTALLATION....1327
  90 OTHERS....1328
    HYDRAULIC CIRCUIT DIAGRAM (1/3)....1329
    HYDRAULIC CIRCUIT DIAGRAM (2/3)....1330
    HYDRAULIC CIRCUIT DIAGRAM (3/3) ....1331
    ELECTRICAL CIRCUIT DIAGRAM (1/7)....1332
    ELECTRICAL CIRCUIT DIAGRAM (2/7)....1333
    ELECTRICAL CIRCUIT DIAGRAM (3/7)....1334
    ELECTRICAL CIRCUIT DIAGRAM (4/7)....1335
    ELECTRICAL CIRCUIT DIAGRAM (5/7)....1336
    ELECTRICAL CIRCUIT DIAGRAM (6/7)....1337
    ELECTRICAL CIRCUIT DIAGRAM (7/7)....1338
SEN00889-17 - Hydraulic Excavator PC1250-8, PC1250LC-8, PC1250SP-8 Shop Manual....1339
  COVER....1339
  00 Index and foreword....0
    Index....1341
      Composition of shop manual....1342
      Table of contents....1344
    Foreword and general information....1355
      Safety notice....1356
      How to read the shop manual....1361
      Explanation of terms for maintenance standard....1363
      Handling of electric equipment and hydraulic component....1365
      Handling of connectors newly used for engines....1374
      How to read electric wire code....1377
      Precautions when carrying out operation....1380
      Method of disassembling and connecting push-pull type coupler....1383
      Standard tightening torque table....1386
      Conversion table....1390
  01 Specification....0
    Specification and technical data....1397
      Backhoe specification....1398
      Loading shovel specification....1400
      Specifications....1402
      Weight table....1418
      Table of fuel, coolant and lubricants....1426
  10 Structure, function and maintenance standard....0
    Engine and cooling system....1429
      Engine and cooling system....1430
        PTO....1430
        PTO lubrication system....1432
        Radiator and oil cooler....1434
    Power train....1437
      Power train....1438
      Swing machinery....1440
      Swing circle....1444
      Final drive....1445
      Sprocket....1448
    Undercarriage and frame....1451
      Track frame, recoil spring....1452
      Idler....1454
      Carrier roller....1456
      Track roller....1457
      Track shoe....1458
    Air system....1463
      Air system....1464
        Air piping drawing....1464
        Air circuit diagram....1465
        Air governor....1466
        Air tank....1467
        Safety valve....1468
        Horn valve....1469
        Grease pump....1470
    Hydraulic system, Part 1....1473
      Hydraulic system, Part 1....1474
        Hydraulic piping drawing....1474
        Hydraulic tank....1477
        Hydraulic pump....1479
        Line oil filter....1520
        Pilot oil filter....1521
        Return oil filter....1522
        Drain oil filter....1523
        Cooling fan pump....1524
        Cooling fan motor....1538
        Aftercooler fan motor....1544
    Hydraulic system, Part 2....1551
      Control valve....1552
      Swing motor....1567
      Center swivel joint....1576
      Travel motor....1577
      PPC control relief valve....1587
      Accumulator....1588
      Valve control....1589
      PPC valve....1590
      Solenoid valve....1600
      Hydraulic cylinder....1608
    Work equipment....1613
      Work equipment....1614
        Work equipment....1614
        Dimensions of work equipment....1618
    Cab and its attachments....1623
      Cab and its attachments....1624
        Air conditioner....1624
    Electrical system....1626
      Engine control....1627
      Electric control system....1634
      Monitor system....1670
      Sensor....1693
  20 Standard value table....0
    Standard service value table....1700
      Standard value table for engine related parts....1701
      Standard value table for chassis related parts....1702
  30 Testing and adjusting....0
    Testing and adjusting, Part 1....1724
      Tools for testing, adjusting, and troubleshooting....1726
      Sketch of special tool....1731
      Testing engine speed....1732
      Testing air supply pressure (Boost pressure)....1733
      Testing exhaust temperature....1734
      Testing exhaust color....1735
      Testing and adjusting valve clearance....1737
      Testing compression pressure....1739
      Testing blow-by pressure....1742
      Testing engine oil pressure....1743
      Testing EGR valve and bypass valve drive oil pressure....1744
      Adjusting engine speed sensor....1746
      Handling fuel system parts....1747
      Releasing residual pressure in fuel system....1747
      Testing fuel pressure....1748
      Testing fuel return rate and fuel leakage....1749
      Bleeding air from fuel circuit....1752
      Testing fuel system for leakage....1754
      Procedure for checking alternator and replacing belt....1755
    Testing and adjusting, Part 2....1758
      Testing swing circle bearing clearance....1759
      Testing wear of sprocket....1760
      Testing and adjusting track shoe tension....1761
      Testing and adjusting hydraulic pressure in work equipment, swing, travel circuit....1762
      Testing and adjusting control circuit oil pressure....1776
      Testing and adjusting piston pump control pressure....1778
      Testing servo piston stroke....1785
    Testing and adjusting, Part 3....1788
      Measuring PPC valve output pressure and testing swing PPC shuttle valve....1789
      Measuring solenoid valve output pressure....1793
      Adjusting work equipment, swing PPC valve....1795
      Testing travel deviation....1796
      Testing locations causing hydraulic drift of work equipment....1797
      Measuring oil leakage....1798
      Measurement of fan speed....1806
      Measurement of fan circuit oil pressure....1807
      Measuring fan pump EPC solenoid valve output pressure....1809
      Bleeding air....1810
      Releasing remaining pressure in hydraulic circuit....1812
      Testing procedures for diode....1813
    Testing and adjusting, Part 4....1816
      Special function of machine monitor....1817
      Handling controller voltage circuit....1857
    Testing and adjusting, Part 5....1860
      VHMS controller initial setting procedure....1861
      Precautions for replacing VHMS controller....1876
    Testing and adjusting, Part 6....1884
      Pm-clinic service....1885
  40 Troubleshooting....0
    Failure code table and fuse locations....1900
      Failure code table....1901
      Fuse locations....1906
    General information on troubleshooting....1910
      Points to remember when troubleshooting....1911
      Sequence of events in troubleshooting....1912
      Checks before troubleshooting....1913
      Classification and troubleshooting steps....1914
      Information in troubleshooting table....1918
      Connection table for connector pin numbers....1920
      T- branch box and T- branch adapter table....1956
    Troubleshooting by failure code (Display of code), Part 1....1960
      Failure code [A000N1] Eng. Hi Out of Std....1962
      Failure code [AA10NX] Aircleaner Clogging....1963
      Failure code [AB00KE] Charge Voltage Low....1965
      Failure code [B@BAZG] Eng. Oil Press. Low....1967
      Failure code [B@BAZK] Eng. Oil Level Low....1969
      Failure code [B@BCNS] Eng. Water Overheat....1971
      Failure code [B@BCZK] Eng. Water Lvl Low....1973
      Failure code [B@CBNS] High PTO temperature....1975
      Failure code [B@HANS] Hydr. Oil Overheat....1977
      Failure code [CA111] ECM Critical Internal Failure....1978
      Failure code [CA115] Eng Ne and Bkup Speed Sens Error....1980
      Failure code [CA122] Chg Air Press Sensor High Error....1981
      Failure code [CA123] Chg Air Press Sensor Low Error....1983
      Failure code [CA131] Throttle Sensor High Error....1984
      Failure code [CA132] Throttle Sensor Low Error....1986
      Failure code [CA135] Eng Oil Press Sensor High Error....1987
      Failure code [CA141] Eng Oil Press Sensor Low Error....1989
      Failure code [CA144] Coolant Temp Sens High Error....1990
      Failure code [CA145] Coolant Temp Sens Low Error....1992
      Failure code [CA153] Chg Air Temp Sensor High Error....1993
      Failure code [CA154] Chg Air Temp Sensor Low Error....1995
      Failure code [CA187] Sens Supply 2 Volt Low Error....1996
      Failure code [CA212] Oil Temp. Sensor High Error....1997
      Failure code [CA213] Oil Temp. Sensor Low Error....1999
      Failure code [CA221] Ambient Press Sens High Error....2000
      Failure code [CA222] Ambient Press Sens Low Error....2002
      Failure code [CA227] Sens Supply 2 Volt High Error....2003
      Failure code [CA234] Eng Overspeed....2005
      Failure code [CA238] Ne Speed Sens Supply Volt Error....2007
      Failure code [CA263] Fuel Temp Sensor High Error....2009
      Failure code [CA265] Fuel Temp Sensor Low Error....2011
      Failure code [CA271] IMV/PCV1 Short Error....2012
      Failure code [CA272] IMV/PCV1 Open Error....2013
      Failure code [CA273] PCV2 Short Error....2015
      Failure code [CA274] PCV2 Open Error....2016
      Failure code [CA322] Inj #1 (L#1) Open/Short Error....2017
      Failure code [CA323] Inj #5 (L#5) Open/Short Error....2019
      Failure code [CA324] Inj #3 (L#3) Open/Short Error....2021
      Failure code [CA325] Inj #6 (L#6) Open/Short Error....2023
      Failure code [CA331] Inj #2 (L#2) Open/Short Error....2025
      Failure code [CA332] Inj #4 (L#4) Open/Short Error....2027
      Failure code [CA342] Calibration Code Incompatibility....2029
      Failure code [CA351] Injectors Drive Circuit Error....2031
    Troubleshooting by failure code (Display of code), Part 2....2034
      Failure code [CA352] Sens Supply 1 Volt Low Error....2036
      Failure code [CA386] Sensor Sup. 1 Volt. High Error....2037
      Failure code [CA441] Battery Voltage Low Error....2039
      Failure code [CA442] Battery Voltage High Error....2039
      Failure code [CA449] Rail Press Very High Error....2040
      Failure code [CA451] Rail Press Sensor High Error....2041
      Failure code [CA452] Rail Press Sensor Low Error....2043
      Failure code [CA553] Rail Press High Error....2043
      Failure code [CA554] Rail Press Sensor In Range Error....2044
      Failure code [CA559] Rail Press Low Error....2045
      Failure code [CA689] Eng Ne Speed Sensor Error....2049
      Failure code [CA731] Eng Bkup Speed Sens Phase Error....2051
      Failure code [CA757] All Persistent Data Lost Error....2052
      Failure code [CA778] Eng Bkup Speed Sensor Error....2053
      Failure code [CA1228] EGR Valve Servo Error 1....2055
      Failure code [CA1625] EGR Valve Servo Error 2....2056
      Failure code [CA1626] BP Valve Sol Current High Error....2057
      Failure code [CA1627] BP Valve Sol Current Low Error....2059
      Failure code [CA1628] Bypass Valve Servo Error 1....2060
      Failure code [CA1629] Bypass Valve Servo Error 2....2061
      Failure code [CA1631] BP Valve Pos Sens High Error....2062
      Failure code [CA1632] BP Valve Pos Sens Low Error....2064
      Failure code [CA1633] KOMNET Datalink Timeout Error....2065
      Failure code [CA2185] Throt Sens Sup Volt High Error....2067
      Failure code [CA2186] Throt Sens Sup Volt Low Error....2069
      Failure code [CA2249] Rail Press Very Low Error....2070
      Failure code [CA2271] EGR Valve Pos Sens High Error....2071
      Failure code [CA2272] EGR Valve Pos Sens Low Error....2073
      Failure code [CA2351] EGR Valve Sol Current High Error....2075
      Failure code [CA2352] EGR Valve Sol Current Low Error....2077
      Failure code [CA2555] Grid Htr Relay Volt Low Error....2078
      Failure code [CA2556] Grid Htr Relay Volt High Error....2079
      Failure code [D110KB] Battery Relay Drive S/C....2081
      Failure code [D163KB] Flash Light Relay S/C....2083
      Failure code [D195KB] Step Light Relay S/C....2085
      Failure code [DA22KK] Pump controller solenoid: Source voltage reduction....2087
      Failure code [DA25KP] Press. Sensor Power Abnormality....2089
      Failure code [DA2SKQ] Model selection Abnormality....2091
      Failure code [DA80MA] Auto. Lub. Abnormal....2093
      Failure code [DA2RMC] Pump Comm. Abnormality....2095
      Failure code [DAFRMC] Monitor Comm. Abnormality....2097
    Troubleshooting by failure code (Display of code), Part 3....2100
      Troubleshooting by failure code (Display of code), Part 3....2102
        Failure code [DBB0KK] VHMS source voltage Error (or change of VHMS-LED display from n9 to 01)....2102
        Failure code [DBB0KQ] VHMS Connector Mismatch (or change of VHMS-LED display from nf to 11)....2104
        Failure code [DBB3KK] Abnormality in VBAT voltage (or change of VHMS-LED display from n9 to 05)....2106
        Failure code [DBB5KP] VHMS 5V source sys Error (or change of VHMS-LED display from n9 to 04)....2108
        Failure code [DBB6KP] VHMS 24V source sys Error (or change of VHMS-LED display from n9 to 02)....2110
        Failure code [DBBQKR] KOM-NET/c error (or change of VHMS-LED display from n8 to 02)....2112
        Failure code [DGE5KB] Ambi. Temp. Sensor S/C....2114
        Failure code [DGH2KB] Hydr. Oil Temp. Sensor S/C....2115
        Failure code [DGT3KZ] PTO Temp Sensor Failure (or change of VHMSLED display from n5 to 01)....2116
        Failure code [DGT4KA] F Exhaust Temp. Sensor Failure (or change of VHMS-LED display from n3 to 12)....2118
        Failure code [DGT4KB] F Exhaust Temp. Sensor Failure (or change of VHMS-LED display from n3 to 11)....2120
        Failure code [DGT5KA] R Exhaust Temp. Sensor Failure (or change of VHMS-LED display from n3 to 22)....2122
        Failure code [DGT5KB] R Exhaust Temp. Sensor Failure (or change of VHMS-LED display from n3 to 21)....2124
        Failure code [DHE5KB] Blowby Pres. Sensor Failure (or change of VHMS-LED display from n3 to 32)....2126
        Failure code [DHE5KY] Blowby Pres. Sensor Failure) (or change of VHMS-LED display from n3 to 31)....2128
        Failure code [DHPAMA] F Pump P. Sensor Abnormality....2130
        Failure code [DHPAZL] F Pump Relief Pressure Abnormality....2132
        Failure code [DHPBMA] R Pump P. Sensor Abnormality....2134
        Failure code [DHPBZL] R Pump Relief Pressure Abnormality....2136
        Failure code [DHPTKA] Fan Pump Pre. Sens Failure (or change of VHMS-LED display from n5 to 23)....2137
        Failure code [DHPTKB] Fan Pump Pre. Sens Failure (or change of VHMS-LED display from n5 to 24)....2139
        Failure code [DV20KB] Travel Alarm S/C....2141
        Failure code [DW41KA] Swing Priority Sol. Disc....2143
        Failure code [DW41KB] Swing Priority Sol. S/C....2145
        Failure code [DW43KA] Travel Speed Sol. Disc....2147
        Failure code [DW43KB] Travel Speed Sol. S/C....2149
        Failure code [DW45KA] Swing Brake Sol. Disc....2151
        Failure code [DW45KB] Swing Brake Sol. S/C....2153
        Failure code [DW48KA] CO Cancel Sol. Disc....2155
        Failure code [DW48KB] CO Cancel Sol. S/C....2157
    Troubleshooting by failure code (Display of code), Part 4....2160
      Troubleshooting by failure code (Display of code), Part 4....2162
        Failure code [DW7BKA] Fan Reverse Sol. Disc....2162
        Failure code [DW7BKB] Fan Reverse Sol. S/C....2164
        Failure code [DW91KA] Travel Junction Sol. Disc....2166
        Failure code [DW91KB] Travel Junction Sol. S/C....2168
        Failure code [DWK0KA] 2-stage Relief Sol. Disc....2170
        Failure code [DWK0KB] 2-stage Relief Sol. S/C....2172
        Failure code [DX16KA] Fan Pump EPC Sol. Disc....2174
        Failure code [DX16KB] Fan Pump EPC Sol. S/C....2176
        Failure code [DXA0KA] TVC Sol. Disc....2178
        Failure code [DXA0KB] TVC Sol. S/C....2180
        Failure code [DY20KA] Wiper Working Abnormality....2182
        Failure code [DY20MA] Wiper Parking Abnormality....2184
        Failure code [DY2CKB] Washer Drive S/C....2188
        Failure code [DY2DKB] Wiper Drive (For) S/C....2190
        Failure code [DY2EKB] Wiper Drive (Rev) S/C....2194
        Failure code [F@BBZL] High Blowby Pressure (or change of VHMS-LED display from n3 to 38)....2196
        Failure code [F@BYNR] High F cyl. Exhaust Temp. 2 (or change of VHMS-LED display from n3 to 62)....2198
        Failure code [F@BYNS] High F cyl. Exhaust Temp. 1 (or change of VHMS-LED display from n3 to 61)....2200
        Failure code [F@BZNR] High R cyl. Exhaust Temp. 2 (or change of VHMS-LED display from n3 to 72)....2202
        Failure code [F@BZNS] High R cyl. Exhaust Temp. 1 (or change of VHMS-LED display from n3 to 71)....2204
        Failure code [F@HCMA] Swing Pump Pres. Sen. Abnormality....2206
        Failure code [F@HCZL] Swing Pump Relief Pres. Abnormality....2208
        Failure code [J100KA] Cnt. Pump Pre. Sens Failure (or change of VHMS-LED display from n5 to 11)....2209
        Failure code [j100KA] Fan Pump Pre. Sens Failure (or change of VHMS-LED display from n5 to 21)....2211
        Failure code [J100KB] Cnt. Pump Pre. Sens Failure (or change of VHMS-LED display from n5 to 12)....2213
        Failure code [j100KB] Fan Pump Pre. Sens Failure (or change of VHMS-LED display from n5 to 22)....2215
        Failure code [J100L6] Abnormal Cnt. gear pump press (or change of VHMS-LED display from n5 to 71)....2217
        Failure code [j100L6] Abnormal Fan gear pump press (or change of VHMS-LED display from n5 to 81)....2219
        Failure code [LA10ZL] Fan Pump Relief Press Abnormality (or change of VHMS-LED display from n5 to 25)....2221
    Troubleshooting of electrical system (E-mode)....2224
      Before carrying out troubleshooting of electrical system....2226
      Information contained in troubleshooting table....2228
      E-1 Engine does not start (Engine does not rotate)....2229
      E-2 Auto-decelerator does not work....2233
      E-3 Auto engine warm-up device does not work....2235
      E-4 Preheater does not work....2237
      E-5 All work equipment, swing and travel do not move....2239
      E-6 Machine push-up circuit does not work....2241
      E-7 Boom shockless circuit cannot be reset....2243
      E-8 No display in machine monitor at all....2245
      E-9 Part of display on machine monitor is missing....2247
      E-10 Machine monitor displays contents irrelevant to the model....2247
      E-11 Fuel level monitor red lamp lights up while engine is running....2248
      E-12 Hydraulic oil temperature gauge does not display correctly....2249
      E-13 Fuel gauge does not display correctly....2250
      E-14 Swing lock monitor does not display correctly....2251
      E-15 When the monitor switch is operated, no display appears....2253
      E-16 Windshield wiper does not work....2255
      E-17 Boom RAISE is not correctly displayed in monitor function....2257
      E-18 Boom LOWER is not correctly displayed in monitor function....2258
      E-19 Arm DIGGING is not correctly displayed in monitor function....2259
      E-20 Arm DUMPING is not correctly displayed in monitor function....2260
      E-21 Bucket CURL is not correctly displayed in monitor function....2261
      E-22 Bucket DUMPING is not correctly displayed in monitor function....2262
      E-23 SWING is not correctly displayed in monitor function....2263
      E-24 TRAVEL is not correctly displayed in monitor function....2265
      E-25 Air conditioner does not work....2267
      E-26 Travel alarm does not sound....2269
      E-27 Any of panel lamp, head lamp, working lamp (including additional lamp) does not light up....2270
      E-28 Step light does not light up or go off....2274
      E-29 Electric priming pump does not operate or does not stop automatically....2277
    Troubleshooting of hydraulic and mechanical system (H-mode)....2280
      Troubleshooting of hydraulic and mechanical system (H-mode)....2282
        Before troubleshooting for hydraulic and mechanical systems....2282
        H-1 Speed or power of all work equipment, travel, and swing is low....2288
        H-2 Engine speed lowers remarkably or engine stalls....2290
        H-3 All work equipment, travel, and swing systems do not work....2291
        H-4 Abnormal sound is heard from around pump....2293
        H-5 Speed or power of boom is low....2294
        H-6 Speed or power of arm is low....2296
        H-7 Speed or power of bucket is low....2297
        H-8 Boom does not move....2298
        H-9 Arm does not move....2299
        H-10 Bucket does not move....2300
        H-11 Hydraulic drift of work equipment is large....2301
        H-12 Time lag of work equipment is large....2302
        H-13 Boom shockless function cannot be turned ON or OFF....2303
        H-14 Machine deviates in one direction....2303
        H-15 Machine deviates largely at start....2305
        H-16 Machine deviates largely during compound operation....2306
        H-17 Travel speed or power is low....2306
        H-18 Machine does not travel (only one track)....2307
        H-19 Travel speed does not change....2308
        H-20 Machine does not swing....2309
        H-21 Swing speed or acceleration is low....2310
        H-22 Swing speed or power is low in compound operation of travel and bucket....2311
        H-23 Swing speed or power is low in compound operation of travel and boom in swing priority mode....2311
        H-24 Upper structure overruns largely....2312
        H-25 Large shocks are made when upper structure stops swinging....2313
        H-26 Large abnormal sounds are made when upper structure stops swinging....2314
        H-27 Hydraulic drift of swing is large....2315
        H-28 Fan revolution is abnormal (Sound and vibration of the fan is abnormally large, and the fan is overheated)....2316
    Troubleshooting of engine (S-mode)....2318
      Method of using troubleshooting chart....2320
      S-1 Starting performance is poor....2323
      S-2 Engine does not start....2325
      S-3 Engine does not pick up smoothly....2329
      S-4 Engine stops during operations....2330
      S-5 Engine does not rotate smoothly....2331
      S-6 Engine lacks output (or lacks power)....2332
      S-7 Exhaust smoke is black (incomplete combustion)....2333
      S-8 Oil consumption is excessive (or exhaust smoke is blue)....2334
      S-9 Oil becomes contaminated quickly....2335
      S-10 Fuel consumption is excessive....2336
      S-11 Oil is in coolant (or coolant spurts back or coolant level goes down)....2337
      S-12 Oil pressure drops....2338
      S-13 Oil level rises (Entry of coolant or fuel)....2339
      S-14 Coolant temperature becomes too high (overheating)....2341
      S-15 Abnormal noise is made....2342
      S-16 Vibration is excessive....2343
      S-17 Air cannot be bled from fuel circuit....2345
  50 Disassembly and assembly....0
    General information on disassembly and assembly....2348
      How to read this manual....2349
      Coating materials list....2351
      Special tools list....2354
      Sketches of special tools....2362
    Engine and cooling system, Part 1....2376
      Removal and installation of fuel supply pump assembly....2377
      Removal and installation of cylinder head assembly....2383
      Removal and installation of fuel injector assembly....2401
      Removal and installation of engine front seal....2406
    Engine and cooling system, Part 2....2414
      Removal and installation of engine, PTO and hydraulic pump assembly....2415
      Removal and installation of radiator and hydraulic oil cooler assembly....2424
      Removal of air aftercooler assembly....2428
      Removal and installation of fuel cooler and air conditioner condenser assembly....2430
      Removal and installation of fan motor assembly....2432
      Removal and installation of fuel tank assembly....2437
    Power train....2440
      Removal and installation of PTO assembly....2441
      Disassembly and assembly of PTO assembly....2443
      Removal and installation of swing machinery assembly....2447
      Removal and installation of swing motor and swing machinery assembly....2449
      Disassembly and assembly of swing machinery assembly....2452
      Disassembly and assembly of swing motor and swing machinery assembly....2459
      Removal and installation of swing circle assembly....2466
      Disassembly and assembly of final drive assembly....2467
    Undercarriage and frame....2480
      Removal and installation of track shoe assembly....2481
      Disassembly and assembly of one link in field....2483
      Removal and installation of idler assembly....2487
      Disassembly and assembly of idler assembly....2488
      Disassembly and assembly of idler adjustment cylinder assembly....2491
      Removal and installation of recoil spring assembly....2492
      Disassembly and assembly of recoil spring assembly....2494
      Removal and installation of track roller assembly....2496
      Disassembly and assembly of track roller assembly....2497
      Removal and installation of carrier roller assembly....2500
      Disassembly and assembly of carrier roller assembly....2501
      Removal and installation of revolving frame assembly....2503
      Removal and installation of counterweight assembly....2504
    Hydraulic system....2508
      Removal and installation of hydraulic tank assembly....2509
      Removal and installation of hydraulic pump assembly....2511
      Removal and installation of main pump input shaft oil seal....2517
      Removal and installation of 5-spool control valve assembly (No. 1)....2518
      Removal and installation of 4-spool control valve assembly (No. 2)....2520
      Removal and installation of 4-spool control valve assembly (No. 3)....2522
      Disassembly and assembly of control valve assembly (No. 1)....2524
      Disassembly and assembly of control valve assembly (No. 2)....2527
      Disassembly and assembly of control valve assembly (No. 3)....2531
      Removal and installation of swing motor assembly....2535
      Removal and installation of center swivel joint assembly....2539
      Disassembly and assembly of center swivel joint assembly....2540
      Removal and installation of travel motor assembly....2542
      Disassembly and assembly of work equipment PPC valve assembly....2543
      Disassembly and assembly of travel PPC valve assembly....2545
      Disassembly and assembly of hydraulic cylinder assembly....2548
    Work equipment....2558
      Removal and installation of bucket cylinder assembly....2559
      Removal and installation of bottom dump cylinder assembly....2563
      Removal and installation of arm cylinder assembly....2565
      Removal and installation of boom cylinder assembly....2569
      Removal and installation of bucket assembly....2573
      Removal and installation of arm assembly....2577
      Removal and installation of boom assembly....2580
    Cab and its attachments....2586
      Removal and installation of operator cab assembly....2587
      Removal and installation of operators cab glass (Stuck glass)....2590
      Removal and installation of front window assembly....2600
    Electrical system....2608
      Removal and installation of air conditioner unit assembly....2609
      Removal and installation of monitor assembly....2612
      Removal and installation of pump controller assembly....2613
      Removal and installation of Orbcomm terminal assembly for VHMS....2614
      Removal and installation of VHMS controller assembly....2615
      Removal and installation of engine controller assembly....2616
  90 Diagrams and drawings....0
    Hydraulic circuit diagrams....2618
      Hydraulic circuit diagram (1/2) Serial number 30001 - 30051....2620
      Hydraulic circuit diagram (2/2) Serial number 30001 - 30051....2621
      Hydraulic circuit diagram (1/3) Serial number 30052 and up....2622
      Hydraulic circuit diagram (2/3) Serial number 30052 and up....2623
      Hydraulic circuit diagram (3/3) Serial number 30052 and up....2624
    Electrical diagrams and drawings....2628
      Electrical diagrams and drawings....2630
        Electrical circuit diagram (1/7)....2630
        Electrical circuit diagram (2/7)....2631
        Electrical circuit diagram (3/7)....2632
        Electrical circuit diagram (4/7)....2633
        Electrical circuit diagram (5/7)....2634
        Electrical circuit diagram (6/7)....2635
        Electrical circuit diagram (7/7)....2636
        Connector arrangement diagram....2637
TEN00146-02 - Hydraulic Excavator PC1250-8, PC1250LC-8, PC1250SP-8 Operation & Maintenance Manual....2640
  COVER....2640
  FOREWORD....2641
    FOREWORD....2642
    SAFETY INFORMATION....2645
    INTRODUCTION....2647
      DIRECTIONS OF MACHINE....2647
      VISIBILITY FROM OPERATOR'S SEAT....2648
      BREAKING-IN THE NEW MACHINE....2649
    PRODUCT INFORMATION....2650
      PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE....2650
      EPA REGULATIONS, ENGINE NUMBER PLATE....2650
      SERVICE METER LOCATION....2651
      YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR....2651
  CONTENTS....2652
  SAFETY....2657
    SAFETY....2658
    SAFETY LABELS....2660
      LOCATION OF SAFETY LABELS....2661
      SAFETY LABELS....2662
    GENERAL PRECAUTIONS....2668
      SAFETY RULES....2668
      IF PROBLEMS ARE FOUND....2668
      WORKING WEAR AND PERSONAL PROTECTIVE ITEMS....2668
      FIRE EXTINGUISHER AND FIRST AID KIT....2668
      SAFETY EQUIPMENT....2668
      KEEP MACHINE CLEAN....2669
      KEEP OPERATOR'S COMPARTMENT CLEAN....2669
      LEAVING OPERATOR'S SEAT WITH LOCK....2669
      HANDRAILS AND STEPS....2670
      PRECAUTIONS WHEN WORKING IN HIGH PLACES....2670
      MOUNTING AND DISMOUNTING....2670
      NO PERSONS ON ATTACHMENTS....2670
      DO NOT GET CAUGHT IN ARTICULATED PORTION....2671
      BURN PREVENTION....2671
      FIRE PREVENTION AND EXPLOSION PREVENTION....2672
      ACTION IF FIRE OCCURS....2673
      WINDSHIELD WASHER FLUID....2673
      FALLING OBJECTS, FLYING OBJECTS AND INTRUDING OBJECTS PREVENTION....2673
      ATTACHMENT INSTALLATION....2673
      ATTACHMENT COMBINATIONS....2673
      CAB WINDOW GLASSES....2673
      UNAUTHORIZED MODIFICATIONS....2674
      SAFETY AT JOBSITE....2674
      WORKING ON LOOSE GROUND....2674
      DISTANCE TO HIGH VOLTAGE CABLES....2675
      ENSURE GOOD VISIBILITY....2675
      VENTILATION FOR ENCLOSED AREA....2676
      SIGNALMAN'S SIGNAL AND SIGNS....2676
      EMERGENCY EXIT FROM OPERATOR'S CAB....2676
      ASBESTOS DUST HAZARD PREVENTION....2676
    SAFETY MACHINE OPERATION....2677
      STARTING ENGINE....2677
        CHECKS BEFORE STARTING ENGINE....2677
        SAFETY RULES FOR STARTING ENGINE....2677
        STARTING ENGINE IN COLD WEATHER....2678
      OPERATION....2679
        CHECKS BEFORE OPERATION....2679
        SAFETY RULES FOR CHANGING MACHINE DIRECTIONS....2679
        SAFETY RULES FOR TRAVELING....2680
        TRAVELING ON SLOPES....2680
        OPERATIONS ON SLOPES ....2681
        PROHIBITED OPERATIONS....2682
        OPERATIONS ON SNOW....2683
        PARKING MACHINE....2684
      TRANSPORTATION....2685
        LOADING AND UNLOADING....2685
        SHIPPING THE MACHINE....2685
      BATTERY....2686
        BATTERY HAZARD PREVENTION....2686
        STARTING ENGINE WITH BOOSTER CABLES....2687
      TOWING....2688
        SAFETY RULES FOR TOWING....2688
      LIFTING OBJECTS WITH BUCKET....2689
        SAFETY RULES FOR LIFTING OBJECTS....2689
    SAFETY MAINTENANCE INFORMATION....2690
      WARNING TAG....2690
      KEEP WORK PLACE CLEAN AND TIDY....2690
      APPOINT LEADER WHEN WORKING WITH OTHERS....2690
      STOP ENGINE BEFORE CARRYING OUT MAINTENANCE....2691
      TWO WORKERS FOR MAINTENANCE WHEN ENGINE IS RUNNING....2692
      PROPER TOOLS....2692
      ACCUMULATOR, GAS SPRING....2693
      PERSONNEL....2693
      ATTACHMENTS....2693
      WORK UNDER THE MACHINE....2693
      NOISE....2693
      WHEN USING HAMMER....2694
      WELDING WORKS....2694
      REMOVING BATTERY TERMINALS....2694
      SAFETY FIRST WHEN USING HIGH-PRESSURE GREASE TO ADJUST TRACK TENSION....2694
      DO NOT DISASSEMBLE RECOIL SPRINGS....2695
      SAFETY RULES FOR HIGH-PRESSURE OIL....2695
      PRECAUTION FOR HIGH FUEL PRESSURE....2695
      SAFETY HANDLING HIGH-PRESSURE HOSES....2695
      PRECAUTION FOR HIGH VOLTAGE....2696
      WASTE MATERIALS....2696
      AIR CONDITIONER MAINTENANCE....2696
      COMPRESSED AIR....2696
      PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS....2696
  OPERATION....2697
    MACHINE VIEW ILLUSTRATIONS....2698
      OVERALL MACHINE VIEW....2698
      CONTROLS AND GAUGES....2699
    DETAILED CONTROLS AND GAUGES....2701
      MONITORING SYSTEM....2701
      SWITCHES....2730
      CONTROL LEVERS AND PEDALS....2736
      EMERGENCY EXIT FROM OPERATOR'S CAB....2739
      DOOR LOCK....2739
      CAP WITH LOCK....2740
      HOT AND COOL BOX....2742
      MAGAZINE BOX....2742
      ASHTRAY....2742
      FIRE EXTINGUISHER....2742
      AIR CONDITIONER CONTROLS....2743
      RADIO....2757
      AUXILIARY ELECTRIC POWER....2762
      FUSE....2763
      CIRCUIT BREAKER....2764
      CONTROLLER....2766
      TOOL BOX....2766
      GREASE PUMP....2767
    MACHINE OPERATIONS AND CONTROLS....2771
      BEFORE STARTING ENGINE....2771
      STARTING ENGINE....2794
      AFTER STARTING ENGINE....2797
      STOPPING THE ENGINE....2807
      MACHINE OPERATION....2808
      STEERING THE MACHINE....2812
      SWINGING....2814
      WORK EQUIPMENT CONTROLS AND OPERATIONS....2815
      WORKING MODE....2817
      PROHIBITED OPERATIONS....2818
      GENERAL OPERATION INFORMATION....2823
      TRAVELING ON SLOPES....2825
      ESCAPE FROM MUD....2827
      RECOMMENDED APPLICATIONS....2828
      BUCKET REPLACEMENT....2829
      PARKING MACHINE....2831
      MACHINE INSPECTION AFTER DAILY WORK....2832
      LOCKING....2833
    TRANSPORTATION....2834
      TRANSPORTATION PROCEDURE....2834
      PRECAUTIONS FOR TRANSPORTATION....2834
      LIFTING MACHINE....2834
      SHIPPING MACHINE INFORMATION....2836
      TRANSPORTATION POSTURE....2837
    COLD WEATHER OPERATION....2845
      COLD WEATHER OPERATION INFORMATION....2845
      AFTER DAILY WORK COMPLETION....2848
      AFTER COLD WEATHER SEASON....2848
    LONG TERM STORAGE....2849
      BEFORE STORAGE....2849
      DURING STORAGE....2849
      AFTER STORAGE....2849
      STARTING MACHINE AFTER LONG-TERM STORAGE....2850
    TROUBLES AND ACTIONS....2851
      RUNNING OUT OF FUEL....2851
      PHENOMENA THAT ARE NOT FAILURES....2851
      TOWING THE MACHINE....2852
      SEVERE JOB CONDITION....2852
      DISCHARGED BATTERY....2853
      OTHER TROUBLE....2857
  MAINTENANCE....2863
    MAINTENANCE INFORMATION....2864
    OUTLINE OF SERVICE....2866
      HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC....2866
      ELECTRIC SYSTEM MAINTENANCE....2869
    WEAR PARTS....2870
      WEAR PARTS LIST....2870
    RECOMMENDED FUEL, COOLANT, AND LUBRICANT....2871
      RECOMMENDED BRANDS, RECOMMENDED QUALITY FOR PRODUCTS OTHER THAN KOMATSU GENUINE OIL....2873
    TIGHTENING TORQUE SPECIFICATIONS....2874
      TIGHTENING TORQUE LIST....2874
    SAFETY CRITICAL PARTS....2875
      SAFETY CRITICAL PARTS LIST....2875
    MAINTENANCE SCHEDULE....2876
      MAINTENANCE SCHEDULE CHART....2876
    MAINTENANCE PROCEDURE....2878
      INITIAL 100 HOURS MAINTENANCE (ONLY AFTER THE FIRST 100 HOURS)....2878
      INITIAL 500 HOURS MAINTENANCE (ONLY AFTER THE FIRST 500 HOURS)....2878
      WHEN REQUIRED....2879
        CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT....2879
        CLEAN INSIDE OF COOLING SYSTEM....2882
        CHECK AND TIGHTEN TRACK SHOE BOLTS....2886
        CHECK AND ADJUST TRACK TENSION....2887
        REPLACE BUCKET TEETH (XS)....2890
        ADJUST BUCKET CLEARANCE....2894
        CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID....2895
        CHECK AND MAINTENANCE AIR CONDITIONER....2896
        CLEAN LINE FILTER, REMOVE DIRT....2897
        CHECK GAS SPRING....2898
        BLEEDING AIR FROM HYDRAULIC SYSTEM....2899
        BLEEDING AIR FROM FUEL CIRCUIT....2902
      CHECK BEFORE STARTING....2905
      EVERY 10 HOURS MAINTENANCE....2906
        LUBRICATING....2906
      EVERY 100 HOURS MAINTENANCE....2908
        LUBRICATING SWING CIRCLE....2908
      EVERY 250 HOURS MAINTENANCE....2909
        CHECK OIL LEVEL IN FINAL DRIVE CASE, ADD OIL....2909
        CHECK LEVEL OF BATTERY ELECTROLYTE....2910
        CHECK AND TIGHTEN TRACK FRAME AND AXLE CONNECTING BOLTS....2912
      EVERY 500 HOURS MAINTENANCE....2913
        REPLACE FUEL PRE-FILTER CARTRIDGE....2913
        REPLACE FUEL MAIN FILTER CARTRIDGE....2915
        CHECK SWING PINION GREASE LEVEL, ADD GREASE....2917
        CLEAN, CHECK RADIATOR FINS, OIL COOLER FINS, FUEL COOLER FINS, AFTERCOOLER FINS, CONDENSER FINS (MACHINES EQUIPPED WITH AIR CONDITIONER), PTO OIL COOLER....2918
        CLEAN AIR CONDITIONER FRESH/RECIRC FILTERS....2919
        REPLACE PILOT FILTER ELEMENT....2920
        CLEAN STRAINER OF PTO LUBRICATING OIL FILTER....2921
        CHECK, REPLACE ALTERNATOR, AIR CONDITIONER COMPRESSOR DRIVE BELTS....2921
        REPLACE DRAIN FILTER CARTRIDGE....2922
        CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE....2923
      EVERY 1000 HOURS MAINTENANCE....2925
        REPLACE HYDRAULIC OIL FILTER ELEMENT....2925
        REPLACE BREATHER ELEMENT IN HYDRAULIC TANK....2926
        CLEAN HYDRAULIC TANK RETURN STRAINER....2927
        CHANGE OIL IN SWING MACHINERY CASE....2928
        CHANGE OIL IN PTO CASE....2930
        REPLACE CORROSION RESISTOR CARTRIDGE....2931
        GREASE, CHECK TENSION PULLEY ASSEMBLY OF ALTERNATOR, AIR CONDITIONER COMPRESSOR DRIVE BELT....2932
        CHECK WELDED STRUCTURE....2933
      EVERY 2000 HOURS MAINTENANCE....2936
        CHANGE OIL IN FINAL DRIVE CASE....2936
        CHECK BOOST PIPING HOSE CLAMPS....2936
        CHECK ALTERNATOR....2936
        CHECK ENGINE VALVE CLEARANCE, ADJUST....2936
        CLEAN HYDRAULIC TANK STRAINER....2937
        CHECKING CHARGE PRESSURE OF NITROGEN GAS IN ACCUMULATOR (FOR CONTROL CIRCUIT)....2938
      EVERY 4000 HOURS MAINTENANCE....2942
        CHECK WATER PUMP....2942
        CHECK STARTING MOTOR....2942
        CHECK AIR COMPRESSOR, ADJUST....2942
        REPLACE ACCUMULATOR (FOR CONTROL CIRCUIT)....2942
        CHECK FOR LOOSENESS OF HIGH-PRESSURE PIPING CLAMP, HARDENING OF RUBBER....2943
        CHECK FOR MISSING FUEL SPRAY PREVENTION CAP, HARDENING OF RUBBER....2944
      EVERY 5000 HOURS MAINTENANCE....2945
        CHANGE OIL IN HYDRAULIC TANK, CLEAN STRAINER....2945
      EVERY 8000 HOURS MAINTENANCE....2947
        REPLACE HIGH-PRESSURE PIPING CLAMP....2947
        REPLACE FUEL SPRAY PREVENTION CAP....2947
        OVERHAUL STARTING MOTOR AND ALTERNATOR....2947
  SPECIFICATIONS....2949
    SPECIFICATIONS....2950
  ATTACHMENTS, OPTIONS....2953
    GENERAL PRECAUTIONS FOR SAFETY....2954
      PRECAUTIONS WHEN SELECTING....2954
      READ THE INSTRUCTION MANUAL THOROUGHLY....2954
      PRECAUTIONS WHEN REMOVING OR INSTALLING....2954
      PRECAUTIONS WHEN USING....2954
    ATTACHMENT GUIDE....2955
      COMBINATIONS OF WORK EQUIPMENT....2955
    SELECTION OF TRACK SHOES....2959
    AUTO-GREASING SYSTEM....2960
      EXPLANATION OF COMPONENTS....2960
      OPERATION....2965
      TROUBLESHOOTING....2969
      MAINTENANCE....2970
    HANDLING MACHINES EQUIPPED WITH VHMS....2976
      VHMS INSTALLED, COMMUNICATIONS TERMINAL NOT INSTALLED....2976
      VHMS AND COMMUNICATIONS TERMINAL INSTALLED....2977
  LOADING SHOVEL....2979
    EXPLANATION OF COMPONENTS....2980
      SWITCHES....2980
      FUSE....2983
    OPERATIONS....2984
      OPERATION OF WORK EQUIPMENT....2984
      PRECAUTIONS DURING OPERATION....2986
      EXCAVATOR WORK....2990
    PRECAUTIONS WHEN DISASSEMBLING MACHINE....2991
      RELEASING PRESSURE....2991
    TRANSPORTATION....2992
      MACHINE CONFIGURATION FOR TRANSPORT....2992
    WEAR PARTS....2999
      WEAR PARTS LIST....2999
    MAINTENANCE....3000
      CHECK BEFORE STARTING....3000
      EVERY 10 HOURS MAINTENANCE....3002
      EVERY 5000 HOURS MAINTENANCE....3003
    SPECIFICATION....3005
    COMBINATION OF WORK EQUIPMENT....3006
      COMBINATION OF WORK EQUIPMENT....3006
  INDEX....3009
TEN00223-03 - Hydraulic Excavator PC1250-8, PC1250LC-8, PC1250SP-8 Operation & Maintenance Manual....3013
  COVER....3013
  FOREWORD....3014
    BEFORE READING THIS MANUAL....3015
    SAFETY INFORMATION....3016
    INTRODUCTION....3017
      USE OF MACHINE....3017
      DIRECTIONS OF MACHINE....3017
      VISIBILITY FROM OPERATOR'S SEAT....3018
    PRODUCT INFORMATION....3019
      PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE....3019
      EPA REGULATIONS, ENGINE NUMBER PLATE....3019
      SERVICE METER LOCATION....3020
      YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR....3020
    CONTENTS....3021
  SAFETY....3026
    SAFETY....3027
    SAFETY LABELS....3030
      LOCATION OF SAFETY LABELS....3031
      SAFETY LABELS....3032
    GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE....3038
      PRECAUTIONS BEFORE STARTING OPERATION....3038
      PREPARATIONS FOR SAFE OPERATION....3038
      FIRE PREVENTION....3040
      PRECAUTIONS WHEN GETTING ON OR OFF MACHINE....3041
      DO NOT GET CAUGHT IN WORK EQUIPMENT....3043
      PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES....3043
      PROTECTION AGAINST FALLING, FLYING, INTRUDING OBJECTS....3044
      UNAUTHORIZED MODIFICATION....3044
      PRECAUTIONS RELATED TO ATTACHMENTS AND OPTIONS....3045
      PRECAUTIONS RELATED TO CAB GLASS....3045
      PRECAUTIONS WHEN RUNNING ENGINE INSIDE BUILDING....3045
    PRECAUTIONS FOR OPERATION....3046
      PRECAUTIONS FOR JOBSITE....3046
      STARTING ENGINE....3048
      OPERATION....3050
      TRANSPORTATION....3058
      TOWING....3059
      LIFTING OBJECTS WITH BUCKET....3059
    PRECAUTIONS FOR MAINTENANCE....3060
      PRECAUTIONS BEFORE STARTING INSPECTION AND MAINTENANCE....3060
      PRECAUTIONS FOR INSPECTION AND MAINTENANCE....3064
  OPERATION....3070
    MACHINE VIEW ILLUSTRATIONS....3071
      OVERALL MACHINE VIEW....3071
      CONTROLS AND GAUGES....3072
    DETAILED CONTROLS AND GAUGES....3074
      MONITORING SYSTEM....3074
      SWITCHES....3104
      CONTROL LEVERS AND PEDALS....3110
      EMERGENCY EXIT FROM OPERATOR'S CAB....3113
      DOOR LOCK....3113
      CAP WITH LOCK....3114
      HOT AND COOL BOX....3116
      MAGAZINE BOX....3116
      ASHTRAY....3116
      FIRE EXTINGUISHER....3116
      AIR CONDITIONER CONTROLS....3117
      RADIO....3131
      AUXILIARY ELECTRIC POWER....3136
      FUSE....3137
      CIRCUIT BREAKER....3138
      CONTROLLER....3140
      TOOL BOX....3140
      GREASE PUMP....3141
    MACHINE OPERATIONS AND CONTROLS....3144
      BEFORE STARTING ENGINE....3144
      STARTING ENGINE....3167
      AFTER STARTING ENGINE....3170
      STOPPING THE ENGINE....3180
      MACHINE OPERATION....3181
      STEERING THE MACHINE....3185
      SWINGING....3187
      WORK EQUIPMENT CONTROLS AND OPERATIONS....3188
      WORKING MODE....3190
      PROHIBITED OPERATIONS....3191
      GENERAL OPERATION INFORMATION....3196
      TRAVELING ON SLOPES....3198
      ESCAPE FROM MUD....3200
      RECOMMENDED APPLICATIONS....3201
      BUCKET REPLACEMENT....3202
      PARKING MACHINE....3204
      MACHINE INSPECTION AFTER DAILY WORK....3205
      LOCKING....3206
    TRANSPORTATION....3207
      TRANSPORTATION PROCEDURE....3207
      PRECAUTIONS FOR TRANSPORTATION....3207
      LIFTING MACHINE....3207
      SHIPPING MACHINE INFORMATION....3209
      TRANSPORTATION POSTURE....3210
    COLD WEATHER OPERATION....3218
      COLD WEATHER OPERATION INFORMATION....3218
      AFTER DAILY WORK COMPLETION....3221
      AFTER COLD WEATHER SEASON....3221
    LONG TERM STORAGE....3222
      BEFORE STORAGE....3222
      DURING STORAGE....3222
      AFTER STORAGE....3222
      STARTING MACHINE AFTER LONG-TERM STORAGE....3223
    TROUBLES AND ACTIONS....3224
      RUNNING OUT OF FUEL....3224
      PHENOMENA THAT ARE NOT FAILURES....3224
      TOWING THE MACHINE....3225
      SEVERE JOB CONDITION....3225
      DISCHARGED BATTERY....3226
      OTHER TROUBLE....3230
  MAINTENANCE....3236
    MAINTENANCE INFORMATION....3237
    OUTLINE OF SERVICE....3239
      HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC....3239
      ELECTRIC SYSTEM MAINTENANCE....3242
    WEAR PARTS....3243
      WEAR PARTS LIST....3243
    RECOMMENDED FUEL, COOLANT, AND LUBRICANT....3244
      RECOMMENDED BRANDS, RECOMMENDED QUALITY FOR PRODUCTS OTHER THAN KOMATSU GENUINE OIL....3246
    TIGHTENING TORQUE SPECIFICATIONS....3247
      TIGHTENING TORQUE LIST....3247
    SAFETY CRITICAL PARTS....3248
      SAFETY CRITICAL PARTS LIST....3248
    MAINTENANCE SCHEDULE....3249
      MAINTENANCE SCHEDULE CHART....3249
    MAINTENANCE PROCEDURE....3251
      INITIAL 100 HOURS MAINTENANCE (ONLY AFTER THE FIRST 100 HOURS)....3251
      INITIAL 500 HOURS MAINTENANCE (ONLY AFTER THE FIRST 500 HOURS)....3251
      WHEN REQUIRED....3252
      CHECK BEFORE STARTING....3279
      EVERY 10 HOURS MAINTENANCE....3280
      EVERY 100 HOURS MAINTENANCE....3282
      EVERY 250 HOURS MAINTENANCE....3283
      EVERY 500 HOURS MAINTENANCE....3287
      EVERY 1000 HOURS MAINTENANCE....3299
      EVERY 2000 HOURS MAINTENANCE....3311
      EVERY 4000 HOURS MAINTENANCE....3317
      EVERY 5000 HOURS MAINTENANCE....3320
      EVERY 8000 HOURS MAINTENANCE....3322
  SPECIFICATIONS....3324
    SPECIFICATIONS....3325
  ATTACHMENTS, OPTIONS....3328
    GENERAL PRECAUTIONS FOR SAFETY....3329
      PRECAUTIONS WHEN SELECTING....3329
      READ THE INSTRUCTION MANUAL THOROUGHLY....3329
      PRECAUTIONS WHEN REMOVING OR INSTALLING....3329
      PRECAUTIONS WHEN USING....3329
    ATTACHMENT GUIDE....3330
      COMBINATIONS OF WORK EQUIPMENT....3330
    SELECTION OF TRACK SHOES....3334
    AUTO-GREASING SYSTEM....3335
      EXPLANATION OF COMPONENTS....3335
      OPERATION....3340
      TROUBLESHOOTING....3344
      MAINTENANCE....3345
    HANDLING MACHINES EQUIPPED WITH VHMS....3351
      VHMS INSTALLED, COMMUNICATIONS TERMINAL NOT INSTALLED....3351
      VHMS AND COMMUNICATIONS TERMINAL INSTALLED....3352
  LOADING SHOVEL....3354
    EXPLANATION OF COMPONENTS....3355
      SWITCHES....3355
      FUSE....3358
    OPERATIONS....3359
      OPERATION OF WORK EQUIPMENT....3359
      PRECAUTIONS DURING OPERATION....3361
      EXCAVATOR WORK....3365
    PRECAUTIONS WHEN DISASSEMBLING MACHINE....3366
      RELEASING PRESSURE....3366
    TRANSPORTATION....3367
      MACHINE CONFIGURATION FOR TRANSPORT....3367
    WEAR PARTS....3374
      WEAR PARTS LIST....3374
    MAINTENANCE....3375
      CHECK BEFORE STARTING....3375
      EVERY 10 HOURS MAINTENANCE....3377
      EVERY 5000 HOURS MAINTENANCE....3378
    SPECIFICATION....3380
    COMBINATION OF WORK EQUIPMENT....3381
      COMBINATION OF WORK EQUIPMENT....3381
  INDEX....3384
TEN00291-00 - Hydraulic Excavator PC1250-7, PC1250LC-7, PC1250SP-7 Operation & Maintenance Manual....3388
  COVER....3388
  FOREWORD....3389
    FOREWORD....3390
    SAFETY INFORMATION....3393
    INTRODUCTION....3395
      DIRECTIONS OF MACHINE....3395
      BREAKING-IN THE NEW MACHINE....3395
    PRODUCT INFORMATION....3396
      MACHINE SERIAL NUMBER PLATE AND ITS LOCATION....3396
      ENGINE SERIAL NUMBER PLATE AND ITS LOCATION....3396
      SERVICE METER LOCATION....3397
      YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR....3398
    CONTENTS....3399
  SAFETY....3403
    SAFETY....3404
    SAFETY LABELS....3406
      LOCATION OF SAFETY LABELS....3407
      SAFETY LABELS....3408
    GENERAL PRECAUTIONS....3414
    SAFETY MACHINE OPERATION....3422
      STARTING ENGINE....3422
      OPERATION....3424
      TRANSPORTATION....3430
      BATTERY....3431
      TOWING....3433
    SAFETY MAINTENANCE INFORMATION....3434
  OPERATION....3441
    MACHINE VIEW ILLUSTRATIONS....3442
      OVERALL MACHINE VIEW....3442
      CONTROLS AND GAUGES....3443
    DETAILED CONTROLS AND GAUGES....3445
      MONITORING SYSTEM....3445
      SWITCHES....3469
      CONTROL LEVERS AND PEDALS....3475
      EMERGENCY EXIT FROM OPERATOR'S CAB....3477
      DOOR LOCK....3477
      CAP WITH LOCK....3478
      HOT AND COOL BO....3480
      MAGAZINE BOX....3480
      ASHTRAY....3480
      AIR CONDITIONER CONTROLS....3481
      RADIO....3496
      AUXILIARY ELECTRIC POWER....3500
      FUSE....3501
      CIRCUIT BREAKER....3502
      CONTROLLER....3504
      TOOL BOX....3504
      GREASE PUMP....3505
      ACCUMULATOR....3508
    MACHINE OPERATIONS AND CONTROLS....3509
      BEFORE STARTING ENGINE....3509
      STARTING ENGINE....3527
      AFTER STARTING ENGINE....3531
      STOPPING THE ENGINE....3539
      MACHINE OPERATION....3540
      STEERING THE MACHINE....3544
      SWINGING....3546
      WORK EQUIPMENT CONTROLS AND OPERATIONS....3547
      WORKING MODE....3548
      PROHIBITED OPERATIONS....3549
      GENERAL OPERATION INFORMATION....3551
      TRAVELING ON SLOPES....3553
      ESCAPE FROM MUD....3555
      RECOMMENDED APPLICATIONS....3556
      BUCKET REPLACEMENT....3557
      PARKING MACHINE....3559
      CHECK AFTER SHUT OFF ENGINE....3561
      MACHINE INSPECTION AFTER DAILY WORK....3561
      LOCKING....3561
    TRANSPORTATION....3562
      PRECAUTIONS FOR TRANSPORTATION....3562
      LIFTING MACHINE....3562
      SHIPPING MACHINE INFORMATION....3563
      TRANSPORTATION POSTURE....3564
    COLD WEATHER OPERATION....3571
      COLD WEATHER OPERATION INFORMATION....3571
      AFTER DAILY WORK COMPLETION....3573
      AFTER COLD WEATHER SEASON....3573
    LONG TERM STORAGE....3574
      BEFORE STORAGE....3574
      DURING STORAGE....3574
      AFTER STORAGE....3574
      STARTING MACHINE AFTER LONG-TERM STORAGE....3575
    TROUBLES AND ACTIONS....3576
      RUNNING OUT OF FUEL....3576
      PHENOMENA THAT ARE NOT FAILURES....3576
      TOWING THE MACHINE....3577
      SEVERE JOB CONDITION....3577
      DISCHARGED BATTERY....3578
      OTHER TROUBLE....3582
  MAINTENANCE....3589
    MAINTENANCE INFORMATION....3590
    OUTLINE OF SERVICE....3592
      HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC....3592
      ELECTRIC SYSTEM MAINTENANCE....3596
    WEAR PARTS....3597
      WEAR PARTS LIST....3597
    LUBRICANTS, FUEL AND COOLANT SPECIFICATIONS....3598
    TIGHTENING TORQUE SPECIFICATIONS....3602
      TIGHTENING TORQUE LIST....3602
    SAFETY CRITICAL PARTS....3603
      SAFETY CRITICAL PARTS LIST....3603
    MAINTENANCE SCHEDULE....3604
      MAINTENANCE SCHEDULE CHART....3604
    MAINTENANCE PROCEDURE....3606
      INITIAL 100 HOURS MAINTENANCE (ONLY AFTER THE FIRST 100 HOURS)....3606
      INITIAL 500 HOURS MAINTENANCE (ONLY AFTER THE FIRST 500 HOURS)....3606
      WHEN REQUIRED....3607
      CHECK BEFORE STARTING....3630
      EVERY 10 HOURS MAINTENANCE....3631
      EVERY 100 HOURS MAINTENANCE....3633
      EVERY 250 HOURS MAINTENANCE....3634
      EVERY 500 HOURS MAINTENANCE....3642
      EVERY 1000 HOURS MAINTENANCE....3657
      EVERY 2000 HOURS MAINTENANCE....3666
      EVERY 4000 HOURS MAINTENANCE....3668
      EVERY 5000 HOURS MAINTENANCE....3669
  SPECIFICATIONS....3671
    SPECIFICATIONS....3672
  ATTACHMENTS, OPTIONS....3675
    GENERAL PRECAUTIONS FOR SAFETY....3676
      PRECAUTIONS WHEN SELECTING....3676
      READ THE INSTRUCTION MANUAL THOROUGHLY....3676
      PRECAUTIONS WHEN REMOVING OR INSTALLING....3676
      PRECAUTIONS WHEN USING....3676
    ATTACHMENT GUIDE....3677
      COMBINATIONS OF WORK EQUIPMENT....3677
    SELECTION OF TRACK SHOES....3681
    AUTO-GREASING SYSTEM....3682
      EXPLANATION OF COMPONENTS....3682
      OPERATION....3688
      TROUBLESHOOTING....3692
      MAINTENANCE....3693
  LOADING SHOVEL....3699
    EXPLANATION OF COMPONENTS....3700
      SWITCHES....3700
      FUSE....3703
    OPERATIONS....3704
      OPERATION OF WORK EQUIPMENT....3704
      PRECAUTIONS DURING OPERATION....3706
      EXCAVATOR WORK....3710
    PRECAUTIONS WHEN DISASSEMBLING MACHINE....3711
      RELEASING PRESSURE....3711
    TRANSPORTATION....3712
      MACHINE CONFIGURATION FOR TRANSPORT....3712
    WEAR PARTS....3720
      WEAR PARTS LIST....3720
    MAINTENANCE....3721
      CHECK BEFORE STARTING....3721
      EVERY 10 HOURS MAINTENANCE....3723
      EVERY 5000 HOURS MAINTENANCE....3724
    SPECIFICATION....3726
    COMBINATION OF WORK EQUIPMENT....3727
      COMBINATION OF WORK EQUIPMENT....3727
  INDEX....3729
TEN00362-01 - Hydraulic Excavator PC1250-8, PC1250LC-8, PC1250SP-8 Operation & Maintenance Manual....3733
  COVER....3733
  FOREWORD....3734
    BEFORE READING THIS MANUAL....3735
    SAFETY INFORMATION....3736
    INTRODUCTION....3737
      USE OF MACHINE....3737
      DIRECTIONS OF MACHINE....3737
      VISIBILITY FROM OPERATOR'S SEAT....3738
    PRODUCT INFORMATION....3739
      PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE....3739
      EPA REGULATIONS, ENGINE NUMBER PLATE....3739
      SERVICE METER LOCATION....3740
      YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR....3740
    CONTENTS....3741
  SAFETY....3746
    SAFETY....3747
    SAFETY LABELS....3750
      LOCATION OF SAFETY LABELS....3751
      SAFETY LABELS....3752
    GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE....3758
      PRECAUTIONS BEFORE STARTING OPERATION....3758
      PREPARATIONS FOR SAFE OPERATION....3758
      FIRE PREVENTION....3760
      PRECAUTIONS WHEN GETTING ON OR OFF MACHINE....3761
      DO NOT GET CAUGHT IN WORK EQUIPMENT....3763
      PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES....3763
      PROTECTION AGAINST FALLING, FLYING, INTRUDING OBJECTS....3764
      UNAUTHORIZED MODIFICATION....3764
      PRECAUTIONS RELATED TO ATTACHMENTS AND OPTIONS....3765
      PRECAUTIONS RELATED TO CAB GLASS....3765
      PRECAUTIONS WHEN RUNNING ENGINE INSIDE BUILDING....3765
    PRECAUTIONS FOR OPERATION....3766
      PRECAUTIONS FOR JOBSITE....3766
      STARTING ENGINE....3768
      OPERATION....3770
      TRANSPORTATION....3778
      TOWING....3779
      LIFTING OBJECTS WITH BUCKET....3779
    PRECAUTIONS FOR MAINTENANCE....3780
      PRECAUTIONS BEFORE STARTING INSPECTION AND MAINTENANCE....3780
      PRECAUTIONS FOR INSPECTION AND MAINTENANCE....3784
  OPERATION....3790
    MACHINE VIEW ILLUSTRATIONS....3791
      OVERALL MACHINE VIEW....3791
      CONTROLS AND GAUGES....3792
    DETAILED CONTROLS AND GAUGES....3794
      MONITORING SYSTEM....3794
      SWITCHES....3824
      CONTROL LEVERS AND PEDALS....3830
      EMERGENCY EXIT FROM OPERATOR'S CAB....3833
      DOOR LOCK....3833
      CAP WITH LOCK....3834
      HOT AND COOL BOX....3836
      MAGAZINE BOX....3836
      ASHTRAY....3836
      FIRE EXTINGUISHER....3836
      AIR CONDITIONER CONTROLS....3837
      RADIO....3851
      AUXILIARY ELECTRIC POWER....3856
      FUSE....3857
      CIRCUIT BREAKER....3858
      CONTROLLER....3860
      TOOL BOX....3860
      GREASE PUMP....3861
    MACHINE OPERATIONS AND CONTROLS....3864
      BEFORE STARTING ENGINE....3864
      STARTING ENGINE....3887
      AFTER STARTING ENGINE....3890
      STOPPING THE ENGINE....3900
      MACHINE OPERATION....3901
      STEERING THE MACHINE....3905
      SWINGING....3907
      WORK EQUIPMENT CONTROLS AND OPERATIONS....3908
      WORKING MODE....3910
      PROHIBITED OPERATIONS....3911
      GENERAL OPERATION INFORMATION....3916
      TRAVELING ON SLOPES....3918
      ESCAPE FROM MUD....3920
      RECOMMENDED APPLICATIONS....3921
      BUCKET REPLACEMENT....3922
      PARKING MACHINE....3924
      MACHINE INSPECTION AFTER DAILY WORK....3925
      LOCKING....3926
    TRANSPORTATION....3927
      TRANSPORTATION PROCEDURE....3927
      PRECAUTIONS FOR TRANSPORTATION....3927
      LIFTING MACHINE....3927
      SHIPPING MACHINE INFORMATION....3929
      TRANSPORTATION POSTURE....3930
    COLD WEATHER OPERATION....3938
      COLD WEATHER OPERATION INFORMATION....3938
      AFTER DAILY WORK COMPLETION....3941
      AFTER COLD WEATHER SEASON....3941
    LONG TERM STORAGE....3942
      BEFORE STORAGE....3942
      DURING STORAGE....3942
      AFTER STORAGE....3942
      STARTING MACHINE AFTER LONG-TERM STORAGE....3943
    TROUBLES AND ACTIONS....3944
      RUNNING OUT OF FUEL....3944
      PHENOMENA THAT ARE NOT FAILURES....3944
      TOWING THE MACHINE....3945
      SEVERE JOB CONDITION....3945
      DISCHARGED BATTERY....3946
      OTHER TROUBLE....3950
  MAINTENANCE....3956
    MAINTENANCE INFORMATION....3957
    OUTLINE OF SERVICE....3959
      HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC....3959
      ELECTRIC SYSTEM MAINTENANCE....3962
    WEAR PARTS....3963
      WEAR PARTS LIST....3963
    RECOMMENDED FUEL, COOLANT, AND LUBRICANT....3964
      RECOMMENDED BRANDS, RECOMMENDED QUALITY FOR PRODUCTS OTHER THAN KOMATSU GENUINE OIL....3966
    TIGHTENING TORQUE SPECIFICATIONS....3967
      TIGHTENING TORQUE LIST....3967
    SAFETY CRITICAL PARTS....3968
      SAFETY CRITICAL PARTS LIST....3968
    MAINTENANCE SCHEDULE....3969
      MAINTENANCE SCHEDULE CHART....3969
    MAINTENANCE PROCEDURE....3971
      INITIAL 100 HOURS MAINTENANCE (ONLY AFTER THE FIRST 100 HOURS)....3971
      INITIAL 500 HOURS MAINTENANCE (ONLY AFTER THE FIRST 500 HOURS)....3971
      WHEN REQUIRED....3972
      CHECK BEFORE STARTING....3998
      EVERY 10 HOURS MAINTENANCE....3999
      EVERY 100 HOURS MAINTENANCE....4001
      EVERY 250 HOURS MAINTENANCE....4002
      EVERY 500 HOURS MAINTENANCE....4006
      EVERY 1000 HOURS MAINTENANCE....4018
      EVERY 2000 HOURS MAINTENANCE....4029
      EVERY 4000 HOURS MAINTENANCE....4035
      EVERY 5000 HOURS MAINTENANCE....4038
      EVERY 8000 HOURS MAINTENANCE....4040
  SPECIFICATIONS....4042
    SPECIFICATIONS....4043
  ATTACHMENTS, OPTIONS....4046
    GENERAL PRECAUTIONS FOR SAFETY....4047
      PRECAUTIONS WHEN SELECTING....4047
      READ THE INSTRUCTION MANUAL THOROUGHLY....4047
      PRECAUTIONS WHEN REMOVING OR INSTALLING....4047
      PRECAUTIONS WHEN USING....4047
    ATTACHMENT GUIDE....4048
      COMBINATIONS OF WORK EQUIPMENT....4048
    SELECTION OF TRACK SHOES....4052
    AUTO-GREASING SYSTEM....4053
      EXPLANATION OF COMPONENTS....4053
      OPERATION....4058
      TROUBLESHOOTING....4062
      MAINTENANCE....4063
    HANDLING MACHINES EQUIPPED WITH VHMS....4069
      VHMS INSTALLED, COMMUNICATIONS TERMINAL NOT INSTALLED....4069
      VHMS AND COMMUNICATIONS TERMINAL INSTALLED....4070
  LOADING SHOVEL....4072
    EXPLANATION OF COMPONENTS....4073
      SWITCHES....4073
      FUSE....4076
    OPERATIONS....4077
      OPERATION OF WORK EQUIPMENT....4077
      PRECAUTIONS DURING OPERATION....4079
      EXCAVATOR WORK....4083
    PRECAUTIONS WHEN DISASSEMBLING MACHINE....4084
      RELEASING PRESSURE....4084
    TRANSPORTATION....4085
      MACHINE CONFIGURATION FOR TRANSPORT....4085
    WEAR PARTS....4092
      WEAR PARTS LIST....4092
    MAINTENANCE....4093
      CHECK BEFORE STARTING....4093
      EVERY 10 HOURS MAINTENANCE....4095
      EVERY 5000 HOURS MAINTENANCE....4096
    SPECIFICATION....4098
    COMBINATION OF WORK EQUIPMENT....4099
      COMBINATION OF WORK EQUIPMENT....4099
  INDEX....4102
TEN00503-02- Hydraulic Excavator PC1250-8, PC1250LC-8, PC1250SP-8 Operation & Maintenance Manual....4106
  COVER....4106
  FOREWORD....4107
    BEFORE READING THIS MANUAL....4108
    SAFETY INFORMATION....4109
    INTRODUCTION....4110
      USE OF MACHINE....4110
      DIRECTIONS OF MACHINE....4110
      VISIBILITY FROM OPERATOR'S SEAT....4111
    PRODUCT INFORMATION....4112
      PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE....4112
      EPA REGULATIONS, ENGINE NUMBER PLATE....4112
      SERVICE METER LOCATION....4113
      YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR....4113
    CONTENTS....4114
  SAFETY....4119
    SAFETY....4120
    SAFETY LABELS....4123
      LOCATION OF SAFETY LABELS....4124
      SAFETY LABELS....4125
    GENERAL PRECAUTIONS COMMON TO OPERATION AND....4132
      PRECAUTIONS BEFORE STARTING OPERATION....4132
      PREPARATIONS FOR SAFE OPERATION....4132
      FIRE PREVENTION....4134
      PRECAUTIONS WHEN GETTING ON OR OFF MACHINE....4135
      DO NOT GET CAUGHT IN WORK EQUIPMENT....4137
      PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES....4137
      PROTECTION AGAINST FALLING, FLYING, INTRUDING OBJECTS....4138
      UNAUTHORIZED MODIFICATION....4138
      PRECAUTIONS RELATED TO ATTACHMENTS AND OPTIONS....4139
      PRECAUTIONS RELATED TO CAB GLASS....4139
      PRECAUTIONS WHEN RUNNING ENGINE INSIDE BUILDING....4139
    PRECAUTIONS FOR OPERATION....4140
      PRECAUTIONS FOR JOBSITE....4140
      STARTING ENGINE....4142
      OPERATION....4144
      TRANSPORTATION....4152
      TOWING....4153
      LIFTING OBJECTS WITH BUCKET....4153
    PRECAUTIONS FOR MAINTENANCE....4154
      PRECAUTIONS BEFORE STARTING INSPECTION AND MAINTENANCE....4154
      PRECAUTIONS FOR INSPECTION AND MAINTENANCE....4158
  OPERATION....4165
    MACHINE VIEW ILLUSTRATIONS....4166
      OVERALL MACHINE VIEW....4166
      CONTROLS AND GAUGES....4167
    DETAILED CONTROLS AND GAUGES....4169
      MONITORING SYSTEM....4169
      SWITCHES....4199
      CONTROL LEVERS AND PEDALS....4205
      EMERGENCY EXIT FROM OPERATOR'S CAB....4208
      DOOR LOCK....4208
      CAP WITH LOCK....4209
      HOT AND COOL BOX....4211
      MAGAZINE BOX....4211
      ASHTRAY....4211
      FIRE EXTINGUISHER....4211
      AIR CONDITIONER CONTROLS....4212
      RADIO....4226
      AUXILIARY ELECTRIC POWER....4231
      FUSE....4232
      CIRCUIT BREAKER....4233
      CONTROLLER....4235
      TOOL BOX....4235
      GREASE PUMP....4236
    MACHINE OPERATIONS AND CONTROLS....4239
      BEFORE STARTING ENGINE....4239
      STARTING ENGINE....4262
      AFTER STARTING ENGINE....4265
      STOPPING THE ENGINE....4275
      MACHINE OPERATION....4276
      STEERING THE MACHINE....4280
      SWINGING....4282
      WORK EQUIPMENT CONTROLS AND OPERATIONS....4283
      WORKING MODE....4285
      PROHIBITED OPERATIONS....4286
      GENERAL OPERATION INFORMATION....4291
      TRAVELING ON SLOPES....4293
      ESCAPE FROM MUD....4295
      RECOMMENDED APPLICATIONS....4296
      BUCKET REPLACEMENT....4297
      PARKING MACHINE....4299
      MACHINE INSPECTION AFTER DAILY WORK....4300
      LOCKING....4301
    TRANSPORTATION....4302
      TRANSPORTATION PROCEDURE....4302
      PRECAUTIONS FOR TRANSPORTATION....4302
      LIFTING MACHINE....4302
      SHIPPING MACHINE INFORMATION....4304
      TRANSPORTATION POSTURE....4305
    COLD WEATHER OPERATION....4313
      COLD WEATHER OPERATION INFORMATION....4313
      AFTER DAILY WORK COMPLETION....4316
      AFTER COLD WEATHER SEASON....4316
    LONG TERM STORAGE....4317
      BEFORE STORAGE....4317
      DURING STORAGE....4317
      AFTER STORAGE....4317
      STARTING MACHINE AFTER LONG-TERM STORAGE....4318
    TROUBLES AND ACTIONS....4319
      RUNNING OUT OF FUEL....4319
      PHENOMENA THAT ARE NOT FAILURES....4319
      TOWING THE MACHINE....4320
      SEVERE JOB CONDITION....4320
      DISCHARGED BATTERY....4321
      OTHER TROUBLE....4325
  MAINTENANCE....4331
    MAINTENANCE INFORMATION....4332
    OUTLINE OF SERVICE....4334
      HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC....4334
      ELECTRIC SYSTEM MAINTENANCE....4337
    WEAR PARTS....4338
      WEAR PARTS LIST....4338
    RECOMMENDED FUEL, COOLANT, AND LUBRICANT....4339
      RECOMMENDED BRANDS, RECOMMENDED QUALITY FOR PRODUCTS OTHER THAN KOMATSU GENUINE OIL....4341
    TIGHTENING TORQUE SPECIFICATIONS....4342
      TIGHTENING TORQUE LIST....4342
    SAFETY CRITICAL PARTS....4343
      SAFETY CRITICAL PARTS LIST....4343
    MAINTENANCE SCHEDULE....4345
      MAINTENANCE SCHEDULE CHART....4345
    MAINTENANCE PROCEDURE....4347
      INITIAL 100 HOURS MAINTENANCE (ONLY AFTER THE FIRST 100 HOURS)....4347
      INITIAL 500 HOURS MAINTENANCE (ONLY AFTER THE FIRST 500 HOURS)....4347
      WHEN REQUIRED....4348
      CHECK BEFORE STARTING....4374
      EVERY 10 HOURS MAINTENANCE....4375
      EVERY 100 HOURS MAINTENANCE....4377
      EVERY 250 HOURS MAINTENANCE....4378
      EVERY 500 HOURS MAINTENANCE....4382
      EVERY 1000 HOURS MAINTENANCE....4394
      EVERY 2000 HOURS MAINTENANCE....4409
      EVERY 4000 HOURS MAINTENANCE....4415
      EVERY 5000 HOURS MAINTENANCE....4418
      EVERY 8000 HOURS MAINTENANCE....4420
  SPECIFICATIONS....4421
    SPECIFICATIONS....4422
  ATTACHMENTS AND OPTIONS....4425
    GENERAL PRECAUTIONS FOR SAFETY....4426
      PRECAUTIONS WHEN SELECTING....4426
      READ THE INSTRUCTION MANUAL THOROUGHLY....4426
      PRECAUTIONS WHEN REMOVING OR INSTALLING....4426
      PRECAUTIONS WHEN USING....4426
    ATTACHMENT GUIDE....4427
      COMBINATIONS OF WORK EQUIPMENT....4427
    SELECTION OF TRACK SHOES....4431
    AUTO-GREASING SYSTEM....4432
      EXPLANATION OF COMPONENTS....4432
      OPERATION....4437
      TROUBLESHOOTING....4441
      MAINTENANCE....4442
    HANDLING MACHINES EQUIPPED WITH KOMTRAX Plus....4448
      KOMTRAX Plus INSTALLED, COMMUNICATIONS TERMINAL NOT INSTALLED....4448
      KOMTRAX Plus AND COMMUNICATIONS TERMINAL INSTALLED....4449
  LOADING SHOVEL....4451
    EXPLANATION OF COMPONENTS....4452
      SWITCHES....4452
      FUSE....4455
    OPERATIONS....4456
      OPERATION OF WORK EQUIPMENT....4456
      PRECAUTIONS DURING OPERATION....4458
      LOADING SHOVEL WORK....4462
    PRECAUTIONS WHEN DISASSEMBLING MACHINE....4463
      RELEASING PRESSURE....4463
    TRANSPORTATION....4464
      MACHINE CONFIGURATION FOR TRANSPORT....4464
    WEAR PARTS....4471
      WEAR PARTS LIST....4471
    MAINTENANCE....4472
      CHECK BEFORE STARTING....4472
      EVERY 10 HOURS MAINTENANCE....4474
      EVERY 5000 HOURS MAINTENANCE....4475
    SPECIFICATION....4477
    COMBINATION OF WORK EQUIPMENT....4478
      COMBINATION OF WORK EQUIPMENT....4478
  INDEX....4481