Complete service repair manual with Electrical Wiring Diagrams for Komatsu Hydraulic Excavators PC75UU, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.

Komatsu Hydraulic Excavator PC75UU 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.

SEBM000401 - Hydraulic Excavator PC75UU-1 Shop Manual.pdf
SEBM001302 - Hydraulic Excavator PC75UU-2 Shop Manual.pdf
SEBM016404 - Hydraulic Excavator PC75UU-3 Shop Manual.pdf
SEAM021W0100 - Hydraulic Excavator PC75UU-1 Operation & Maintenance Manual.pdf
SEAM005600 - Hydraulic Excavator PC75UU-2 Operation & Maintenance Manual.pdf
SEAM023201T - Hydraulic Excavator PC75UU-3 Operation & Maintenance Manual.pdf

Total Pages: 1,755 pages
File Format: PDF
Language: English

SEAM005600 - Hydraulic Excavator PC75UU-2 Operation & Maintenance Manual...2
  COVER...2
  1. FOREWORD...3
  2. SAFETY INFORMATION...4
  3. INTRODUCTION...5
  4. LOCATION OF PLATES,TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR...6
  5. CONTENTS...7
  SAFETY...11
    6. GENERAL PRECAUTIONS...12
    7. PRECAUTIONS DURING OPERATION...17
      7.1 BEFORE STARTING ENGINE...17
      7.2 OPERATING MACHINE...19
      7.3 TRANSPORTATION...24
      7.4 BATTERY...25
      7.5 TOWING...26
      7.6 BUCKET WITH HOOK...27
    8. PRECAUTIONS FOR MAINTENANCE...30
      8.1 BEFORE CARRYING OUT MAINTENANCE...30
      8.2 DURING MAINTENANCE...33
    9. POSITION FOR ATTACHING SAFETY LABELS...37
  OPERATION...41
    10. GENERAL VIEW...42
      10.1 GENERAL VIEW OF MACHINE...42
      10.2 GENERAL VIEW OF CONTROLS AND GAUGES...43
    11. EXPLANATION OF COMPONENTS...44
      11.1 MACHINE MONITOR...45
      11.2 SWITCHES...51
      11.3 CONTROL LEVERS AND PEDALS...54
      11.4 ENGINE HOOD ...57
      11.5 FRONT WINDOW...58
      11.6 SLIDING DOOR...60
      11.7 FUSE BOX...61
      11.8 FUSIBLE LINK...61
      11.9 CAP WITH LOCK, COVER...62
      11.10 TOOL BOX...62
      11.11 GREASE GUN HOLDER...62
    12. OPERATION...63
      12.1 CHECK BEFORE STARTING ENGINE...63
      12.2 STARTING ENGINE...70
      12.3 OPERATION AND CHECK AFTER STARTING ENGINE...72
      12.4 MOVING MACHINE OFF...75
      12.5 STEERING MACHINE...77
      12.6 STOPPING MACHINE...79
      12.7 SWINGING...80
      12.8 PROHIBITIONS FOR OPERATION...81
      12.9 PRECAUTIONS FOR OPERATION...83
      12.10 PRECAUTIONS WHEN TRAVELING UP OR DOWN HILLS...84
      12.11 WORK POSSIBLE USING HYDRAULIC EXCAVATOR...86
      12.12 PARKING MACHINE...88
      12.13 CHECKS AFTER FINISHING WORK...89
      12.14 STOPPING ENGINE...89
      12.15 CHECKS AFTER STOPPING ENGINE...90
      12.16 LOCKING...90
      12.17 HOW TO ESCAPE FROM MUD...91
      12.18 REPLACEMENT OF BUCKET...92
      12.19 HANDLING 4-SYSTEM...93
      12.20 HANDLING RUBBER SHOES (RUBBER SHOES ONLY)...103
    13. TRANSPORTATION...108
      13.1 LOADING,UNLOADING WORK...108
      13.2 METHOD FOR LIFTING CHASSIS...110
      13.3 PRECAUTIONS FOR LOADING...112
      13.4 PRECAUTIONS FOR TRANSPORTATION...112
    14. COLD WEATHER OPERATION...113
      14.1 PRECAUTIONS FOR LOW TEMPERATURE...113
      14.2 PRECAUTIONS AFTER COMPLETION OF WORK...115
      14.3 PREPARING THE CAB HEATER...115
      14.4 AFTER COLD WEATHER...115
    15. LONG-TERM STORAGE...116
      15.1 BEFORE STORAGE...116
      15.2 DURING STORAGE...116
      15.3 AFTER STORAGE...116
    16. TROUBLESHOOTING...117
      16.1 PHENOMENA THAT ARE NOT FAILURES...117
      16.2 METHOD OF TOWING MACHINE...119
      16.3 PRECAUTIONS ON PARTICULAR JOBSITES...119
      16.4 IF BATTERY IS DISCHARGED...120
      16.5 OTHER TROUBLE...123
  MAINTENANCE...128
    17. GUIDES TO MAINTENANCE...129
    18. OUTLINES OF SERVICE...132
      18.1 OUTLINE OF OIL,FUEL, COOLANT...132
      18.2 RELATING TO ELECTRIC SYSTEM...135
    19. WEAR PARTS LIST...136
    20. USE OF FUEL,COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE...137
    21. STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS...141
      21.1 INTRODUCTION OF NECESSARY TOOLS...141
      21.2 TORQUE LIST...142
    22. PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS...143
    23. MAINTENANCE SCHEDULE CHART...145
      23.1 MAINTENANCE SCHEDULE CHART...145
      23.2 MAINTENANCE INTERVAL WHEN USING HYDRAULIC BREAKER...147
    24. SERVICE PROCEDURE...148
      24.1 INITIAL 250 HOURS SERVICE...148
      24.2 WHEN REQUIRED...149
      24.3 CHECK BEFORE STARTING...173
      24.4 EVERY 50 HOURS SERVICE...177
      24.5 EVERY 100 HOURS SERVICE...178
      24.6 EVERY 250 HOURS SERVICE...180
      24.7 EVERY 500 HOURS SERVICE...183
      24.8 EVERY 1000 HOURS SERVICE...188
      24.9 EVERY 2000 HOURS SERVICE...190
      24.10 EVERY 4000 HOURS SERVICE...193
  SPECIFICATIONS...194
    25. SPECIFICATIONS...195
  OPTIONS,ATTACHMENTS...198
    26. USING CAR RADIO...199
      26.1 EXPLANATION OF PARTS...199
      26.2 METHOD OF USE...201
      26.3 PRECAUTIONS FOR USE...202
      26.4 SPECIFICATIONS...203
    27. USING CAR COOLER...204
      27.1 CONTROL PANEL...204
      27.2 PRECAUTIONS WHEN USING...204
      27.3 INSPECTION AND MAINTENANCE OF CAR COOLER...205
    28. HANDLING WINDOW WASHER...207
      28.1 OPERATION OF WINDOW WASHER...207
      28.2 CHECK WINDOW WASHER FLUID, ADD FLUID...207
    29. HANDLING BUCKET WITH HOOK...208
      29.1 CHECKING FOR DAMAGE TO BUCKET WITH HOOK...208
      29.2 PROHIBITED OPERATIONS...208
      29.3 PRECAUTIONS DURING OPERATIONS...208
    30. GENERAL PRECAUTIONS...209
      30.1 PRECAUTIONS RELATED TO SAFETY...209
    31. INTRODUCTION OF ATTACHMENTS...210
      31.1 SPECIFICATION, USE...210
      31.2 PRECAUTIONS WHEN INSTALLING ATTACHMENTS...211
      31.3 PRECAUTIONS WHEN USING HYDRAULIC BREAKER...212
    32. MACHINES ABLE TO INSTALL ATTACHMENTS...215
      32.1 EXPLANATION OF EQUIPMENT...215
      32.2 HYDRAULIC CIRCUIT...217
      32.3 OPERATION...218
      32.4 LONG-TERM STORAGE...219
      32.5 SPECIFICATIONS...219
SEAM021W0100 - Hydraulic Excavator PC75UU-1 Operation & Maintenance Manual...220
  COVER...220
  FOREWORD...221
  BREAKING IN YOUR NEW MACHINE...222
  CONTENTS...223
  GENERAL LOCATIONS AND SPECIFICATIONS...224
  INSTRUMENTS AND CONTROLS...225
  CHECK BEFORE STARTING...239
  OPERATING YOUR MACHINE...244
  REPLACEMENT OF BUCKET...256
  COLD WEATHER OPERATION...257
  PERIODIC MAINTENANCE...261
    MAINTENANCE TABLE...262
    OIL FILLER AND GAUGE POSITIONS...265
    EVERY 50 HOURS SERVICE...266
    EVERY 100 HOURS SERVICE...267
    EVERY 250 HOURS SERVICE...271
    EVERY 500 HOURS SERVICE...274
    EVERY 1000 HOURS SERVICE...278
    EVERY 2000 HOURS SERVICE...280
    WHEN REQUIRED...284
  ADJUSTMENT...296
  HANDLING RUBBER SHOES...297
  TROUBLE SHOOTING GUIDE...310
  SERVICE METER...313
  MACHINE AND ENGINE SERIAL NUMBERS...314
  FUEL,COOLANT AND LUBRICANTS...315
  SAFETY AND OPERATION...317
    CONTENTS...318
    SAFETY HINTS...319
    RADIO...328
    OPERATING THE CAR COOLER...330
    EXCAVATOR'S WORK...332
    HANDLING OF BATTERY...333
    TRANSPORTATION...336
    PRECAUTIONS FOR MAINTENANCE...338
    STORAGE...343
    COOLANT AND LUBRICANTS...345
SEAM023201T - Hydraulic Excavator PC75UU-3 Operation & Maintenance Manual...348
  COVER...348
  1.FOREWORD...349
  2.SAFETY INFORMATION...350
  3.INTRODUCTION...351
  4.LOCATION OF PLATES,TABLE TO ENTER SERIAL NO.AND DISTRIBUTOR...352
  5.CONTENTS...353
  SAFETY...357
    6.GENERAL PRECAUTIONS...358
    7.PRECAUTIONS DURING OPERATION...363
      7.1 BEFORE STARTING ENGINE...363
      7.2 OPERATING MACHINE...365
      7.3 TRANSPORTATION...372
      7.4 BATTERY...373
      7.5 TOWING...375
      7.6 BUCKET WITH HOOK...376
      7.7 WINDOW WASHER FLUID...376
    8.PRECAUTIONS FOR MAINTENANCE...377
      8.1 BEFORE CARRYING OUT MAINTENANCE...377
      8.2 DURING MAINTENANCE...381
    9.POSITION FOR ATTACHING SAFETY LABELS...386
      9.1 POSITION FOR ATTACHING SAFETY LABELS...386
  OPERATION...391
    10.GENERAL VIEW...392
      10.1 GENERAL VIEW OF MACHINE...392
      10.2 GENERAL VIEW OF CONTROLS AND GAUGES...393
    11.EXPLANATION OF COMPONENTS...394
      11.1 MACHINE MONITOR...395
      11.2 SWITCHES...401
      11.3 CONTROL LEVERS AND PEDALS...405
      11.4 ENGINE HOOD ...408
      11.5 FRONT WINDOW...409
      11.6 SLIDING DOOR...411
      11.7 REAR WINDOW...411
      11.8 HAMMER FOR EMERGENCY ESCAPE ...412
      11.9 FUSE BOX...412
      11.10 FUSIBLE LINK...413
      11.11 CAP WITH LOCK,COVER...413
      11.12 TOOL BOX...414
      11.13 GREASE GUN HOLDER...414
      11.14 OPERATION AND MAINTENANCE MANUAL POCKET...414
    12.OPERATION...415
      12.1 CHECK BEFORE STARTING ENGINE...415
      12.2 STARTING ENGINE...423
      12.3 OPERATIONS AND CHECKS AFTER STARTING ENGINE...425
      12.4 MOVING MACHINE OFF...428
      12.5 STEERING MACHINE...430
      12.6 STOPPING MACHINE...432
      12.7 SWINGING...433
      12.8 PROHIBITIONS FOR OPERATION...434
      12.9 PRECAUTIONS FOR OPERATION...436
      12.10 PRECAUTIONS WHEN TRAVELING UP OR DOWN HILLS...437
      12.11 WORK POSSIBLE USING HYDRAULIC EXCAVATOR...439
      12.12 PARKING MACHINE...441
      12.13 CHECK AFTER FINISHING WORK...442
      12.14 STOPPING ENGINE...442
      12.15 CHECK AFTER STOPPING ENGINE...443
      12.16 LOCKING...443
      12.17 HOW TO ESCAPE FROM MUD...444
      12.18 REPLACEMENT OF BUCKET...445
      12.19 HANDLING 4-SYSTEM...446
      12.20 HANDLING RUBBER SHOES (RUBBER SHOES ONLY)...456
    13.TRANSPORTATION...461
      13.1 LOADING,UNLOADING WORK...461
      13.2 METHOD FOR LIFTING CHASSIS...463
      13.3 PRECAUTIONS FOR LOADING...465
      13.4 PRECAUTIONS FOR TRANSPORTATION...465
    14.COLD WEATHER OPERATION...466
      14.1 PRECAUTIONS FOR LOW TEMPERATURE...466
      14.2 CAUTIONS AFTER COMPLETION OF WORK...468
      14.3 PREPARING THE CAB HEATER...468
      14.4 AFTER COLD WEATHER...468
    15.LONG-TERM STORAGE...469
      15.1 BEFORE STORAGE...469
      15.2 DURING STORAGE...469
      15.3 AFTER STORAGE...469
    16.TROUBLESHOOTING...470
      16.1 PHENOMENA THAT ARE NOT FAILURES...470
      16.2 METHOD OF TOWING MACHINE...472
      16.3 PRECAUTIONS ON PARTICULAR JOBSITES...472
      16.4 IF BATTERY IS DISCHARGED...473
      16.5 OTHER TROUBLE...476
  MAINTENANCE ...481
    17.GUIDES TO MAINTENANCE...482
    18.OUTLINES OF SERVICE...485
      18.1 OUTLINE OF OIL,FUEL,COOLANT...485
      18.2 RELATING TO ELECTRIC SYSTEM...488
    19.WEAR PARTS LIST...489
    20.USE OF FUEL,COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE...490
    21.STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS...494
      21.1 TORQUE LIST...494
    22.PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS...495
    23.MAINTENANCE SCHEDULE CHART...497
      23.1 MAINTENANCE SCHEDULE CHART...497
      23.2 MAINTENANCE INTERVAL WHEN USING HYDRAULIC BREAKER...499
    24.SERVICE PROCEDURE...500
      24.1 INITIAL 250 HOURS SERVICE...500
      24.2 WHEN REQUIRED...501
      24.3 CHECK BEFORE STARTING...529
      24.4 EVERY 50 HOURS SERVICE...533
      24.5 EVERY 100 HOURS SERVICE...534
      24.6 EVERY 250 HOURS SERVICE...536
      24.7 EVERY 500 HOURS SERVICE...541
      24.8 EVERY 1000 HOURS SERVICE...547
      24.9 EVERY 2000 HOURS SERVICE...549
      24.10 EVERY 4000 HOURS SERVICE...549
      24.11 EVERY 5000 HOURS SERVICE...550
  SPECIFICATIONS...552
    25.SPECIFICATIONS...553
  OPTIONS,ATTACHMENTS...557
    26.USING CAR RADIO...558
      26.1 EXPLANATION OF PARTS...558
      26.2 METHOD OF USE...560
      26.3 PRECAUTIONS FOR USE...561
    27.USING CAR COOLER...562
      27.1 OPERATION OF CONTROL PANEL...562
      27.2 PRECAUTIONS WHEN USING...562
      27.3 INSPECTION AND MAINTENANCE OF CAR COOLER...563
    28.HANDLING WINDOW WASHER...564
      28.1 OPERATION OF WINDOW WASHER...564
      28.2 CHECK WINDOW WASHER FLUID,ADD FLUID...564
    29.HANDLING BUCKET WITH HOOK...565
      29.1 CHECKING FOR DAMAGE TO BUCKET WITH HOOK...565
      29.2 PROHIBITED OPERATIONS...565
      29.3 PRECAUTIONS DURING OPERATIONS...565
    30.GENERAL PRECAUTIONS...566
      30.1 PRECAUTIONS RELATED TO SAFETY...566
    31.INTRODUCTION OF ATTACHMENTS...567
      31.1 PRECAUTIONS WHEN INSTALLING ATTACHMENTS...567
      31.2 PRECAUTIONS WHEN USING HYDRAULIC BREAKER...568
SEBM000401 - Hydraulic Excavator PC75UU-1 Shop Manual...572
SEBM001302 - Hydraulic Excavator PC75UU-2 Shop Manual...784
  COVER...784
  CONTENTS...785
  01 GENERAL...808
    GENERAL ASSEMBLY DRAWING...809
    SPECIFICATIONS...813
    WEIGHT TABLE...817
    LIST OF LUBRICANT AND WATER...819
  10 STRUCTURE AND FUNCTION...821
    HYDRAULIC PIPING DIAGRAM...822
    HYDRULIC CIRCUIT DIAGRAM...823
    ELECTRIC WIRING DIAGRAM...824
    ELECTRIC CIRCUIT DIAGRAM...826
  20 TESTING AND ADJUSTING...828
    TABLE OF JUDGEMENT STANDARD VALUE...829
    STANDARD VALUE TABLE FOR ELECTRICAL PARTS...837
    TOOLS FOR TESTING ,ADJUSTING,AND TROUBLESHOOTING...842
    MEASURING ENGINE SPEED...843
    MEASURING ENGINE OIL PRESSURE...843
    MEASURING COMPRESSION PRESSURE...844
    MEASURING BLOW-BY...845
    ADJUSTING VALVE CLEARANCE...846
    TESTING AND ADJUSTING FUEL INJECTION TIMING...847
    TESTING AND ADJUSTING ALTERNATOR FAN BELT TENSION...848
    ADJUSTING FUEL CONTROL LEVER...849
    TESTING AND ADJUSTING TRACK SHOE TENSION...851
    TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT...852
    TESTING CONTROL CIRCUIT PRESSURE...855
    MEASURING OUTPUT PRESSURE OF PPC VALVE...857
    ADJUSTING PPC VALVE ...858
    MEASURING OUTLET PORT PRESSURE OF SOLENOID VALVE,EPC VALVE...859
    MEASURING OIL LEAKAGE INSIDE CYLINDER...860
    MEASURING OIL LEAKAGE FROM SWING,TRAVEL MOTOR...861
    BLEEDING AIR FROM HYDRAULIC CIRCUIT...862
    RELEASING REMAINING FROM HYDRAULIC CIRCUIT...864
    ADJUSTING BLADE CONTROL LEVER...865
    ADJUSTING TRAVEL CONTROL LEVER...866
    PROCEDURE FOR RESETTING ELECTRICAL SYSTEM INPUT/OUTPUT SIGNALS AND CHECKING OPERATION...867
    PROCEDURE FOR REPLACING POTENTIOMETER ...878
    PROCDURE FOR CHECKING DIODE...879
    TROUBLESHOOTING...880
      POINTS TO REMEMBER WHEN TROUBLESHOOTING...881
      SEQUENCE OF EVENTS IN TROUBLESHOOTING...882
      PRECAUTIONS WHEN CARRYING OUT MAINTENANCE...883
      CHECKS BEFORE TROUBLESHOOTING...890
      ELECTRICAL CIRCUIT DIAGRAMS FOR EACH SYSTEM...891
      CONNECTOR ARRANGEMENT DRAWING...895
      CONNECTION TABLE FOR CONNECTOR PIN NUMBERS...899
      HANDING CONNECTORS...906
      EXPLANATIONS OF CONTROL MECHANISM OF ELECTRICAL SYSTEM...907
      DISPLAY METHOD FOR MONITOR PANEL,CONTROLLER...911
      ACTION TAKEN BY SELF DIAGNOSTIC FUNCTION AND PROBLEMS ON MACHINE...916
      METHOD OF USING JUDGEMENT TABLE...917
      METHOD OF USING TROUBLESHOOTING CHARTS...918
      TROUBLESHOOTING OF CONTROLLER,ELECTRICAL SYSTEM (E MODE)...920
        JUDGEMENT TABLE FOR CONTROLLER,ELECTRICAL,HYDRAULIC AND MECHANICAL SYSTEMS...921
        POINTS TO REMEMBER WHEN CARRYING OUT TROUBLESHOOTING OF CONTROLLER SYSTEM...922
        PRECAUTIONS WHEN HANDLING CANCEL SWITCH WHEN ABNORMALITY DISPLAY IS GIVEN AND WORK EQUIPMENT STOPS ...925
        E-1 ERROR CODE [EE] (ABNORMALITY IN CONTROLLER POWER SOURCE SYSTEM OR COMMUNICATIONS SYSTEM) ...926
          a) ABNORMALITY IN CONTROLLER POWER SOURCE SYSTEM...926
          b) ABNORMALITY IN COMMUNICATIONS SYSTEM...927
        E-2 ERROR CODE [21] (ABNORMALITY IN MODEL SELECTION SYSTEM)...928
        E-3 ERROR CODE [22] (ABNORMALITY IN WORK EQUIPMENT SELECTION SYSTEM)...929
        E-4 ERROR CODE [31] (ABNORMALITY IN BOOM POTENTIOMETER SYSTEM)...930
        E-5 ERROR CODE [32] (ABNORMALITY IN ARM POTENTIOMETER SYSTEM)...931
        E-6 ERROR CODE [34] (ABNORMALITY IN OFFSET POTENTIOMETER SYSTEM)...932
        E-7 ERROR CODE [41] (ABNORMALITY IN PPC LOCK SOLENOID SYSTEM)...933
        E-8 ERROR CODE [42] (ABNORMALITY IN LEFT OFFSET STOP SOLENOID SYSTEM)...934
        E-9 ERROR CODE [44] (ABNORMALITY IN BOOM LOWER STOP SOLENIOD SYSTEM)...935
        E-10 ERROR CODE [51] (ABNORMALITY IN BOOM RAISE STOP SOLENOID SYSTEM)...936
        E-11 ERROR CODE [52] (ABNORMALITY IN ARM IN STOP SOLENOID SYSTEM)...937
        E-12 WORK EQUIPMENT DOES NOT WORK EVEN WHEN EQUIPMENT LOCK LEVER IS RELEASED...938
        E-13 DEPTH MODE,HEIGHT MODE,OFFSET MODE DO NOT WORK PROPERLY (GO BEYOND SET POSITION BEFORE STOPPING OR STOP BEFORE REACHING SET POSITION)...939
        E-14 IMPOSSIBLE TO SELECT AND SET DEPTH DISPLAY 0 SET MODE,DEPTH MODE,HEIGHT MODE,OFFSET MODE...940
        E-15 CANCLE SWITCH IS NOT TURNED ON,BUT ALARM BUZZER SOUNDS FOR 7 SECONDS AND ELECTRIC SYSTEM CAUTION LAMP FLASHES...941
        E-16 AUTOMATIC STOP IS NOT CARRIED OUT FOR BOOM RAISE,ARM IN,LEFT OFFSET (WHEN ERROR CODE [61] IS NOT DISPLAYED)...942
        E-17 WORK EQUIPMENT LOCK LEVER IS AT LOCK POSITION BUT WORK EQUIPMENT MOVES...943
        E-18 ENGINE DOES NOT START WHEN STARTING SWITCH IS TURNED TO START...944
        E-19 EVEN WHEN STARTING SWITCH IS TURNED OFF,ENGINE DOES NOT STOP...946
        E-20 UPPER STRUCTURE DOES NOT SWING (WHEN SWING LEVER IS OPERATED,AND NO ELECTRICITY FLOWS TO SWING BRAKE SOLENOID)...947
        E-21 EXCESSIVE HYDRAULIC DRIFT OF SWING (WHEN ELECTRIC CURRENT FLOWS TO SWING BRAKE SOLENIOD BOTH WHEN SWING LEVER IS OPERATED AND AT NEUTRAL)...949
      TROUBLESHOOTING OF HYDRAULIC,MECHANICAL SYSTEM (H MODE)...951
        H-1 SPEEDS OF ALL WORK EQUIPMENT,SWING,TRAVEL ARE SLOW...952
          a) SPEEDS OF ALL WORK EQUIPMENT AND SWING ARE SLOW (WHEN BLADE AND TRAVEL SPEEDS ARE NORMAL)...952
          b) SPEEDS OF ALL WORK EQUIPMENT,SWING,TRAVEL ARE ALL SLOW...954
        H-2 THERE IS EXCESSIVE DROP IN ENGINE SPEED,OR ENGINE STALLS...955
        H-3 NO WORK EQUIPMENT,SWING,TRAVEL MOVE...956
          a) NONE OF WORK EQUIPMENT AND SWING MOVE...956
          b) NONE OF WORK EQUIPMENT, SWING, TRAVEL MOVE...956
        H-4 ALL WORK EQUIPMENT,SWING,TRAVEL LACK POWER...957
        H-5 ABNORMAL NOISE GENERATED FROM AROUND PUMP...957
        H-6 WORK EQUIPMENT SPEED IS SLOW (ONE OF BOOM,ARM,BUCKET,OFFSET IS SLOW)...958
        H-7 WORK EQUIPMENT LACKS POWER (ONE OF BOOM,ARM,BUCKET,OFFSET LACKS POWER)...959
        H-8 WORK EQUIPMENT DOES NOT MOVE (ONE OF BOOM,ARM,BUCKET,OFFSET DOES NOT MOVE)...959
        H-9 EXCESSIVE HYDRAULIC DRIFT...960
        H-10 EXCESSIVE TIME LAG...960
        H-11 WHEN MACHINE IS TRAVELING,IT DEVIATES NATURALLY TO ONE SIDE...961
          a) DEVIATES IN SAME DIRECTION BOTH IN FORWARD AND REVERSE...961
          b) DEVIATES IN DIFFERENT DIRECTION IN FORWARD AND REVERSE...963
        H-12 EXCESSIVE DEVIATION WHEN STARTING...964
        H-13 TRAVEL LACKS POWER (OR SPEED IS SLOW)...964
        H-14 TRACK DOES NOT MOVE (ONE SIDE ONLY)...965
        H-15 TRAVEL LEVER IS HEAVY...965
        H-16 DOES NOT SWING...966
        H-17 SWING SPEED IS SLOW OR ACCELERATION IS POOR...966
        H-18 EXCESSIVE OVERRUN WHEN STOPPING SWING...967
        H-19 EXCESSIVE SHOCK WHEN STOPPING SWING...968
        H-20 EXCESSIVE ABNORMAL NOISE WHEN STOPPING SWING ...968
        H-21 EXCESSIVE HYDRAULIC DRIFT OF SWING...969
        H-22 ERROR CODE [61] IS DISPLAYED ON MONITOR PANEL,AND JUST BEFORE INTERFERENCE,BOOM RAISE,ARM IN,AND LEFT OFFSET ALL STOP...970
        H-23 BOOM RAISE,ARM IN,AND LEFT OFFSET DO NOT AUTOMATICALLY STOP AND THERE IS INTERFERENCE...971
        TABLE OF FAILURE MODES AND CAUSES...972
      TROUBLESHOOTING OF MACHINE MONITOR SYSTEM (M MODE)...973
        M-1 WHEN THE STARTING SWITCH IS TURNED ON,NO DISPLAY IS GIVEN (LAMPS DO NOT LIGHT UP FOR 3 SECONDS)...974
        M-2 WHEN STARTING SWITCH IS TURNED ON,LAMPS LIGHT UP FOR 3 SECONDS,BUT THEN DO NOT GO OUT...974
        M-3 WHEN STARTING SWITCH IS TURNED ON,SOME LAMPS DO NOT LIGHT UP FOR 3 SECONDS...975
          a) NO GAUGE LAMPS LIGHT UP PREHEATING PILOT DOES NOT LIGHT UP...975
          b) BATTERY ELECTROLYTE LEVEL CAUTION LAMP DOES NOT LIGHT UP ,ELECTRIC SYSTEM CAUTION LAMP DOES NOT LIGHT UP...975
          c) CHARGE CAUTION LAMP DOES NOT LIGHT UP...975
          d) ENGINE OIL PRESSURE CAUTION LAMP DOES NOT LIGHT UP...975
        M-4 WHEN STARTING SWITCH IS ON (ENGINE STOPPED),CHARGE CAUTION LAMP DOES NOT LIGHT UP...976
        M-5 WHEN STARTING SWITCH IS ON(ENGINE STOPPED),ENGINE OIL PRESSURE CAUTION LAMP DOES NOT LIGHT UP...976
        M-6 DURING PREHEATING,PREHEATING PILOT LAMP DOES NOT LIGHT UP ...977
        M-7 WHEN STARTING SWITCH IS ON (ENGINE STOPPED),BATTERY ELECTROLYTE LEVEL CAUTION LAMP LIGHTS UP (BATTERY ELECTROLYTE IS AT SPECIFIED LEVEL)...977
        M-8 WHEN ENGINE IS RUNNNG,ENGINE OIL PESSURE CAUTION LAMP LIGHTS UP (ENGINE OIL PRESSURE IS NORMAL)...978
        M-9 WHEN ENGINE IS RNNING,CHARGE CAUTION LAMP LIGHTS UP...978
        M-10 ABNORMALITY DISPLAY ON COOLANT TEMPERATURE GAUGE ...979
          a) AFTER ENGINE IS STARTED,LEVEL STAYS AT BOTTOM AND DOES NOT MOVE ...979
          b) AFTER ENGINE IS STARTED,LEVEL IMMEDIATELY RISES, ENGINE IS NOT OVERHEATING BUT INDICATOR ENTERS RED RANGE...979
        M-11 ABNORMALITY DISPLAY ON FUEL GAUGE...980
          a) ALL FUEL GAUGE SEGMENTS GO OUT...980
          b) EVEN WHEN FUEL LEVEL GOES DOWN,FUEL GAUGE CONTINUES TO SHOW FULL...980
          c) EVEN WHEN TANK IS FILLED,FUEL GAUGE DOES NOT SHOW FULL...981
        M-12 DEFECTIVE OPERATION OF ALARM BUZZER...982
          a) BUZZER DOES NOT SOUND...982
          b) BUZZER CONTINUES TO SOUND AND DOES NOT STOP...982
        M-13 WHEN ENGINE IS RUNNING,SERVICE METER DOES NOT ADVANCE...983
          a) WHEN CHARGE CAUTION LAMP DOES NOT LIGHT UP...983
          b) WHEN CHARGE CAUTION LAMP LIGHTS UP...983
        M-14 NIGHT LINGHTING DOES NOT LIGHT UP...984
          a) LIGHTING OF COOLANT TEMPERATURE GAUGE,FUEL GAUGE,DEPTH DISPLAY DOES NOT LIGHT UP...984
          b) LIGHTING OF SERVICE METER DOES NOT LIGHT UP ...984
        M-15 ELECTRIC SYSTEM CAUTION LAMP STAYS LIGHTED UP,AND DOES NOT GO OUT (NO ABNORMALITY DISPLAY ON CONTROLLER,OPERATION IS NORMAL)...985
  30 DISASSEMBLY AND ASSEMBLY...986
    METHOD OF USING MANUAL...988
    PRECAUTIONS WHEN CARRYING OUT OPERATION...989
    SPECIAL TOOLS LIST...991
    SCHEMATIC DRAWING OF SPECIAL TOOL...995
    STARTING MOTOR...1001
      REMOVAL AND INSTALLATION ...1001
    ALTERNATOR ...1003
      REMOVAL AND INSTALLATION...1003
    FUEL INJECTION PUMP...1004
      REMOVAL AND INSTALLATION ...1004
    WATER PUMP ...1007
      REMOVAL...1007
      INSTALLATION...1008
    NOZZLE HOLDER...1009
      REMOVAL AND INSTALLTION...1009
    THERMOSTAT...1010
      REMOVAL AND INSTALLATION...1010
    ENGINE FRONT SEAL...1011
      REMOVAL AND INSTALLATION...1011
    ENGINE REAR SEAL...1012
      REMOVAL AND INSTALLATION...1012
    CYLINDER HEAD...1013
      REMOVAL...1013
      INSTALLATION...1017
    HYDRAULIC OIL COOLER...1019
      REMOVAL AND INSTALLATION...1019
    RADIATOR...1020
      REMOVAL AND INSTALLATION...1020
    ENGINE AND MAIN PUMP...1021
      REMOVAL...1021
      INSTALLATION...1024
    DAMPER...1028
      REMOVAL AND INSTALLATION...1028
    CENTER SWIVEL JOINT...1029
      REMOVAL AND INSTALLATION...1029
      DISASSEMBLY AND ASSEMBLY...1031
    TRAVEL MOTOR...1032
      REMOVAL AND INSTALLATION...1032
    SPROCKET...1033
      REMOVAL AND INSTALLATION...1033
    SWING MOTOR AND SWING MACHINERY...1034
      REMOVAL AND INSTALLATION...1034
    SWING MOTOR ...1035
      DISASSEMBLY...1035
      ASSEMBLY...1039
    SWING MACHINERY...1045
      DISASSEMBLY...1045
      ASSEMBLY...1052
    REVOLVING FRAME...1059
      REMOVAL ...1059
      INSTALLATION...1060
    SWING CIRCLE...1061
      REMOVAL AND INSTALLATION...1061
    IDLER AND RECOIL SPRING...1062
      REMOVAL AND INSTALLATION...1062
    IDLER...1063
      DISASSEMBLY...1063
      ASSEMBLY...1064
    RECOIL SPRING...1066
      DISASSEMBLY ...1066
      ASSEMBLY...1067
    TRACK ROLLER ...1068
      REMOVAL AND INSTALLATION...1068
      DISASSEMBLY...1069
      ASSEMBLY...1072
    RUBBER SHOE...1079
      REMOVAL AND INSTALLATION...1079
    STEEL SHOE AND ROAD LINER ...1080
      EXPANSION AND INSTALLATION...1080
    PPC PUMP...1081
      REMOVAL AND INSTALLATION...1081
    MAIN PUMP...1082
      REMOVAL AND INSTALLATION...1082
      DISASSEMBLY...1083
      ASSEMBLY...1090
    3-SPOOL CONTROL VALVE...1098
      REMOVAL...1098
      INSTALLATION...1099
      DISASSEMBLY...1102
      ASSEMBLY...1104
    4-SPOOL CONTROL VALVE...1106
      REMOVAL ...1106
      INSTALLATION...1107
    MAIN RELIEF VALVE...1108
      REMOVAL AND INSTALLATION...1108
      DISASSEMBLY AND ASSEMBLY...1109
    PPC VALVE ASSEMBLY ON LEFT SIDE OF WORK EQUIPMENT...1110
      REMOVAL AND INSTALLATION...1110
    PPC VALVE ON RIGHT SIDE OF WORK EQUIPMENT...1111
      REMOVAL AND INSTALLATION...1111
    WORK EQUIPMENT PPC VALVE...1112
      DISASSEMBLY ...1112
      ASSEMBLY...1114
    PPC VALVE FOR OFFSET OPERATION...1117
      REMOVAL AND INSTALLATION...1117
    ARM CYLINDER...1118
      REMOVAL...1118
      INSTALLATION...1119
    BUCKERT CYLINDER...1120
      REMOVAL...1120
      INSTALLATION...1121
    BOOM CYLINDER...1122
      REMOVAL ...1122
      INSTALLATION...1123
    OFFSET CYLINDER...1124
      REMOVAL...1124
      INSTALLATION...1125
    BLADE CYLINDER...1126
      REMOVAL ...1126
      INSTALLATION...1127
    HYDRAULIC CYLINDER...1128
      DISASSSEMBLY...1128
      ASSEMBLY...1130
    WORK EQUIPMENT...1132
      REMOVAL...1132
      INSTALLATION...1133
    BUCKET...1134
      REMOVAL AND INSTALLATION...1134
    ARM...1135
      REMOVAL ...1135
      INSTALLATION...1136
    2ND BOOM...1137
      REMOVAL ...1137
      INSTALLATION...1139
    BUCKET AND ARM...1140
      REMOVAL ...1140
      INSTALLATION...1141
    1ST BOOM...1142
      REMOVAL ...1142
      INSTALLATION...1143
    BLADE...1144
      REMOVAL AND INSTALLATION...1144
    OPERATOR'S CAB...1145
      REMOVAL AND INSTALLATION...1145
    FLOOR FRAME...1146
      REMOVAL ...1146
      INSTALLATION...1147
    FUEL TANK...1148
      REMOVAL AND INSTALLATION...1148
    CONTROLLER...1149
      REMOVAL AND INSTALLATION...1149
    MONITOR...1150
      REMOVAL AND INSTALLATION...1150
    COUNTERWEIGHT...1151
      REMOVAL AND INSTALLATION...1151
  40 MAINTENANCE STANDARD...1152
    SWING MACHINERY...1153
    SWING CIRCLE...1154
    TRACK FRAME,RECOIL SPRING...1155
    IDLER...1156
    TRACK ROLLER...1157
    CARRIER ROLLER...1158
    SPROCKET...1160
    TRACK SHOE...1161
    HYDRAULIC PUMP...1162
    3-SPOOL CONTROL VALVE(FOR FRONT PUMP)...1163
    3-SPOOL CONTROL VALVE(FOR CENTER PUMP)...1165
    4-SPOOL CONTROL VALVE...1167
    SWING MOTOR...1168
    CENTER SWIVEL JOINT...1169
    PPC VALVE...1170
    HYDRAULIC CYLINDER...1172
    WORK EQUIPMENT...1173
SEBM016404 - Hydraulic Excavator PC75UU-3 Shop Manual...1175
  COVER...1175
  CONTENTS...1176
  01 GENERAL...1200
    GENERAL ASSEMBLY DRAWING...1201
    WORK EQUIPMENT RANGE DRAWING...1206
    SPECIFICATIONS...1209
    WEIGHT TABLE ...1215
    LIST OF LUBRICANT AND WATER...1219
  10 STRUCTURE AND FUNCTION...1222
    RADIATOR,OIL COOER...1223
    PTO (COUPLING)...1225
    POWER TRAIN...1227
    SWING MACHINERY...1228
    SWING CIRCLE...1229
    TRACK FRAME...1230
    HYDRAULIC EQUIPMENT LAYOUT...1231
    HYDRAULIC TANK...1233
    HYDRAULIC PUMP...1234
    CONTROL VALVE...1260
    SELF-PRESSURE REDUCING VALVE...1271
    CLSS...1275
    SWING MOTOR...1293
    CENTER SWIVEL JOINT...1304
    TRAVEL MOTOR...1308
    VALVE CONTROL...1314
    PPC VALVE...1315
    SOLENOID VALVE...1326
    SOLENOID VALVE,EPC VALVE...1328
    WORK EQUIPMENT...1332
    AIR CONDITIONER PIPING...1333
    ELECTRIC WIRING DIAGRAM...1334
    ENGINE CONTROL...1337
    FOUR SYSTEM (4 SYSTEM)...1345
    ELECTRICAL CONTROL SYSTEM...1363
    MONITOR SYSTEM...1370
  20 TESTING AND ADJUSTING...1376
    STANDARD VALUE TABLE FOR ENGINE RELATED PARTS...1377
    STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS...1378
    STANDARD VALUE TABLE FOR ELECTRICAL RELATED PARTS...1385
    TESTING AND ADJUSTING...1393
      TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING...1394
      MEASURING ENGINE SPEED...1395
      MEASURING EXHAUST COLOR...1396
      ADJUSTING VALVE CLEARANCE...1397
      MEASURING COMPRESSION PRESSURE...1398
      MEASURING BLOW-BY PRESSURE...1399
      TESTING AND ADJUSTING FUEL INJECTION TIMING...1400
      MEASURING ENGINE OIL PRESSURE...1401
      ADJUSTING ENGINE STOP SOLENOID LINKAGE TESTING...1402
      ADTUSTING FUEL CONTROL LINKAGE...1403
      TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT...1404
      MEASURING LS DIFFERENTIAL PRESSURE AND ADJUSTING LS VALVE...1406
      ADJUSTING PC VALVE...1407
      MEASURING CONTROL CIRCUIT OIL PRESSURE (REDUCED PUMP DISCHARGE SELF-PRESSURE)...1408
      MEASURING PPC VALVE OUTPUT PRESSURE...1409
      TESTING SOLENOID VALVE OUTPUT PRESSURE...1410
      ADJUSTING WORK EQUIPMENT, SWING PPC VALVE...1412
      TESTING TRAVEL DEVIATION...1413
      TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT...1414
      MEASURING SWING, TRAVEL MOTOR OIL LEAKAGE...1415
      RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT...1415
      TESTING CLEARANCE OF SWING CIRCLE BEARING...1416
      TESTING WEAR OF SPROCKET...1417
      TESTING AND ADJUSTING TRACK SHOE TENSION...1418
      BLEEDING AIR...1419
      PROCEDURE FOR RESETTING ELECTRICAL SYSTEM INPUT/ OUTPUT SIGNALS AND CHECKING OPERATION...1421
      PROCEDURE FOR ADJUSTMENT WHEN INSTALLING LONG ARM, SLIDE ARM (TELESCOPIC ARM)...1433
      PROCEDURE FOR REPLACING POTENTIOMETER...1434
      PROCEDURE FOR CHECKING DIODE...1435
    TROUBLESHOOTING...1436
      POINTS TO REMEMBER WHEN TROUBLESHOOTING...1437
      SEQUENCE OF EVENTS IN TROUBLESHOOTING...1438
      POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE...1439
      CHECKS BEFORE TROUBLESHOOTING...1447
      CONNECTOR TYPES AND MOUNTING LOCATIONS...1448
      CONNECTOR ARRANGEMENT DIAGRAM...1450
      CONNECTION TABLE FOR CONNECTOR PIN NUMBERS...1453
      EXPLANATIONS OF CONTROL MECHANISM OF ELECTRICAL SYSTEM...1463
      DISPLAY METHOD FOR MONITOR PANEL,CONTROLLER...1467
      METHOD OF USING JUDGEMENT TABLE...1471
      METHOD OF USING TROUBLESHOOTING CHARTS...1472
      TROUBLESHOOTING OF ENGINE (S MODE)...1474
        METHOD OF USING TROUBLESHOOTING CHART...1475
        S-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME)...1479
        S-2 ENGINE DOSE NOT START...1481
          (1) ENGINE DOSE NOT TURN...1481
          (2) ENGINE TURNS BUT NO EXHAUST SMOKE COMES OUT (FUEL IS NOT BEING INJECTED)...1482
          (3) EXHAUST SMOKE COMES OUT BUT ENGINE DOSE NOT START(FUEL IS BEING INJECTED)...1483
        S-3 ENGINE DOSE NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR)...1484
        S-4 ENGINE STOPS DURING OPERATIONS...1485
        S-5 ENGINE DOSE NOT ROTATE SMOOTHLY (HUNTING)...1486
        S-6 ENGINE LACKS OUTPUT (OR LACKS POWER)...1487
        S-7 EXHAUST SMOKE IS BLACK (INCOMPLETE COMBUSTION)...1488
        S-8 OIL CONSUMPTION IS EXCESSIVE (OR EXHAUST SMOKE IS BLUE)...1489
        S-9 OIL BECOMES CONTAMINATED QUICKLY...1490
        S-10 FUEL CONSUMPTION IS EXCESSIVE...1491
        S-11 OIL IS IN COOLING WATER,OR WATER SPURTS BACK,OR WATER LEVEL GOES DOWN...1492
        S-12 OIL PRESSURE CAUTION LAMP LIGHTS UP (DROP IN OIL PRESSURE)...1493
        S-13 OIL LEVEL RISES (WATER,FUEL IN OIL)...1494
        S-14 WATER TEMPERATURE BECOMES TOO HIGH (OVERHEATING)...1495
        S-15 ABNORMAL NOISE IS MADE...1496
        S-16 VIBRATION IS EXCESSIVE...1497
      TROUBLESHOOTING OF CONTROLLER,ELECTRICAL SYSTEM(E MODE)...1498
        ACTION TAKEN BY SELF-DIAGNOSTIC FUNCTION AND PROBLEMS ON MACHINE...1500
        JUDGEMENT TABLE FOR 4 SYSTEM...1506
        JUDGEMENT TABLE FOR CHASSIS RELATED PARTS...1508
        ELECTRICAL CIRCUIT DIAGRAM FOR CONTROLLER SYSTEM...1510
        POINTS TO REMEMBER WHEN CARRYING OUT TROUBLESHOOTING OF CONTROLLER SYSTEM...1515
        PRECAUTIONS WHEN HANDLING CANCEL SWITCH WHEN ABNORMALITY DISPLAY IS GIVEN AND WORK EQUIPMENT STOPS...1518
        E-1 ERROR CODE [EE] (ABNORMALITY IN CONTROLLER POWER SOURCE SYSTEM OR COMMUNICATIONS SYSTEM)...1519
          a) ABNORMALITY IN CONTROLLER POWER SOURCE SYSTEM...1519
          b) ABNORMALITY IN COMMUNICATIONS SYSTEM...1520
        E-2 ERROR CODE [21] (ABNORMALITY IN MODEL SELECTION SYSTEM)...1521
        E-3 ERROR CODE [22] (ABNORMALITY IN WORK EQUIPMENT SELECTION SYSTEM)...1522
        E-4 ERROR CODE [31] (ABNORMALITY IN BOOM POTENTLOMETER SYSTEM)...1523
        E-5 ERROR CODE [32] (ABNORMALITY IN ARM POTENTIOMETER SYSTEM)...1524
        E-6 ERROR CODE [34] (ABNORMALITY IN OFFSET POTENTIOMETER SYSTEM)...1525
        E-7 ERROR CODE [37] (ABNORMALITY IN POTENTIOMETER POWER SOURCE SYSTEM) IS DISPLAYED...1526
        E-8 ERROR CODE [38] (ABNORMALITY IN SLIDE ARM LENGTH SENSOR SYSTEM) IS DISPLAYED...1527
        E-9 ERROR CODE [41] (ABNORMALITY IN PPC LOCK SOLENOID SYSTEM)...1528
        E-10 ERROR CODE [42] (ABNORMALITY IN LEFT OFFSET STOP SOLENOID STSTEM)...1529
        E-11 ERROR CODE [44] (ABNORMALITY IN BOOM LOWER STOP SOLENOID SYSTEM)...1530
        E-12 ERROR CODE [51] (ABNORMALITY IN BOOM RAISE STOP SOLENOID SYSTEM)...1531
        E-13 ERROR CODE [52] (ABNORMALITY IN ARM IN STOP EPC SOLENOID SYSTEM) IS DISPLAYED...1532
        E-14 ERROR CODE [61] (VALVE OPEN) IS DISPLAYED...1532
        E-15 DEPTH MODE, HEIGHT MODE,OFFSET MODE DO NOT WORK PROPERLY (GO BEYOND SET POSITION BEFORE STOPPING OR STOP BEFORE REACHING SET POSITION)...1533
        E-16 IMPOSSIBLE TO SELECT AND SET DEPTH DISPLAY 0 SET MODE,DEPTH MODE,HEIGHTMODE,OFFSET MODE...1535
        E-17 CANCEL SWITCH IS NOT TURNED ON,BUT ALARM BUZZER SOUNDS FOR 7 SECONDS AND ELECTRIC SYSTEM CAUTION LAMP FLASHES...1536
        E-18 AUTOMATIC STOP IS NOT CARRIED OUT FOR BOOM RAISE,ARM IN,LEFT OFFSET(WHEN ERROR CODE [61] IS NOT DISPLAYED)...1537
          a) ALL OPERATIONS STOP IMMEDIATELY BOFORE INTERFERENCE...1537
          b) THERE IS INTERFERENCE...1537
        E-19 WHEN TELESCOPIC ARM IS EXTENDED (MORE THAN 200 MM) AUTOMATIC STOP DISTANCE IS NEAR...1538
        E-20 WHEN SLIDE ARM IS RETRACTED (LESS THAN 200 MM) AUTOMATIC STOP DISTANCE IS FAR ...1539
        E-21 WORK EQUIPMENT DOSE MOVE WHEN WORK EQUIPMENT LOCK LEVER IS SET TO FREE POSITION...1540
        E-22 WORK EQUIPMENT DOSE MOVE WHEN WORK EQUIPMENT LOCK LEVER IS SET TO FREE POSITION...1541
        E-23 DOSE NOT SWING...1542
        E-24 EXCESSIVE HYDRAULIC DRIFT OF SWING (SWING BRAKE HAS NO EFFECT)...1545
        E-25 EVEN WHEN TRAVEL BOOST PEDAL IS OPERATED (DEPRESSED),SPEED DOSE NOT INCREASE...1548
        E-26 TRAVEL BOOST PEDAL IS NOT BEING OPERATED (NOT DEPRESSED) BUT SPEED REMAINS BOOSTED...1549
        E-27 POWER MODE DOSE NOT SWITCH...1550
          a) WHEN ENGINE SPEED IS AT MID-RANGE SPEED OR ABOVE (LIMIT SWITCH ON) BUT WORK EQUIPMENT SPEED SLOW...1550
          b) EXCESSIVE DROP IN ENGINE SPEED WHEN ENGINE SPEED IS BELOW MID-RANGE SPEED (LIMIT SWITCH ON)...1551
        E-28 WIPER DOSE NOT WORK...1552
        E-29 ENGINE DOSE NOT START ...1553
          a) STARTING MOTOR DOSE NOT TURN...1553
          b) ENGINE STOP SOLENOID DOSE NOT WORK (STARTING MOTOR TURNS)...1556
        E-30 ENGINE DOSE NOT STOP...1557
        E-31 DEFECTIVE ENGINE CONTROL...1558
          a) DOSE NOT WORK,OR WORKS AND THEN STOPS WORKING...1558
          b) WORKS,BUT DOSE NOT WORKS SMOOTHLY (CABLE WORK ABNORMAL OR INSUFFICIENT STROKE)...1560
          c) SWIFT SLOW-DOWN DOSE NOT WORK...1562
          d) WORKS AT NEAR IDLING BUT DOSE NOT WORK UP TO FULL (LOAD BECOMES LARGER)...1563
      TROUBLESHOOTING OF HYDRAULIC,MECHANICAL SYSTEM (H MODE)...1564
        TABLE OF FAILURE MODES AND CAUSES...1565
        H-1 SPEEDS OF ALL WORK EQUIPMENT,TRAVEL,AND SWING ARE SLOW OR LACK POWER...1567
          a) SPEEDS OF ALL WORK EQUIPMENT,TRAVEL,AND SWING ARE ALL SLOW OR LACK POWER...1567
          b) SPEEDS OF SWING AND BLADE ARE ALL SLOW OR LACK POWER (BOOM,ARM,BUCKET,OFFSET,AND TRAVEL ARE NORMAL)...1567
          c) SPEEDS OF BOOM,ARM,BUCKET,OFFSET,AND TRAVEL ARE ALL SLOW OR LACK POWER (SWING AND BLADE ARE NORMAL)...1568
          d) SPEEDS OF ALL WORK EQUIPMENT (BOOM,ARM,BUCKET,OFFSET) ARE ALL SLOW OR LACK POWER (TRAVEL AND AWING ARE NORMAL)...1570
        H-2 THERE IS EXCESSIVE DROP IN ENGINE SPEED,OR ENGINE STALLS...1571
        H-3 NONE OF WORK EQUIPMENT,TRAVEL,OR SWING MOVE...1572
          a) NONE OF WORK EQUIPMENT,TRAVEL,OR SWING MOVE...1572
          b) NONE OF BOOM,ARM,BUCKET,OFFSET,OR TRAVEL MOVE (SWING AND BLADE ARE NORMAL)...1572
          c) SWING AND BLADE DO NOT MOVE (BOOM,ARM,BUCKET,OFFSET,AND TRAVEL ARE NORMAL)...1572
        H-4 ABNORMAL NOISE GENERATED FROM AROUND PUMP...1573
        H-5 FINE CONTROL ABILITY IS POOR OR RESPONSE IS POOR (BOOM,ARM,BUCKET,OFFSET)...1573
        H-6 BOOM IS SLOW OR LACKS POWER...1574
        H-7 ARM IS SLOW OR LACKS POWER ...1576
        H-8 BUCKET IS SLOW OR LACKS POWER...1578
        H-9 BLADE IS SLOW OR LACKS POWER...1578
        H-10 WORK EQUIPMENT DOSE NOT MOVE (ONE OF BOOM,ARM,BUCKET,OFFSET,BLADE DOSE NOT MOVE)...1579
        H-11 EXCESSIVE HYDRAULIC DRIFT OF WORK EQUIPMENT...1580
          a) EXCESSIVE HYDRAULIC DRIFT OF BOOM,ARM,BUCKET...1580
          b) EXCESSIVE HYDRAULIC DRIFT OF BLADE...1580
        H-12 EXCESSIVE TIME LAG (ENGINE AT LOW IDLING)...1581
        H-13 IN COMPOUND OPERATIONS,WORK EQUIPMENT WITH LARGER LOAD IS SLOW...1581
        H-14 IN SWING + BOOM RAISE,BOOM RAISE IS SLOW...1582
        H-15 IN TRAVEL + BOOM RAISE,TRAVEL SPEED DROPS EXCESSIVELY...1582
        H-16 WHEN MACHINE IS TRAVELING,IT DEVIATES NATURALLY TO ONE SIDE (DEVIATION IS EXCESSIVE WHEN TRAVELING)...1583
          a) DEVIATES IN SAME DIRECTION IN BOTH FORWARD AND REVERSE...1583
          b) DEVIATES IN DIFFERENT DIRECTION IN FORWARD AND REVERSE...1584
        H-17 EXCESSIVE DEVIATION WHEN STARTING...1585
        H-18 TRAVEL SPEED IS SLOW OR LACKS POWER ...1585
        H-19 STEERING IS DIFFICULT TO TURN...1586
        H-20 TRAVEL SPEED DOSE NOT SWITCH...1587
        H-21 TRACK DOSE NOT MOVE (ONE SIDE ONLY)...1587
        H-22 UPPER STRUCTURE DOSE NOT SWING...1588
          a) DOSE NOT SWING TO EITHER LEFT OR RIGHT...1588
          b) DOSE NOT SWING IN ONE DIRECTION (EITHER LEFT OR RIGHT)...1588
        H-23 SWING ACCELERATION IS POOR OR SPEED IS SLOW...1589
        H-24 EXCESSIVE OVERRUN WHEN STOPPING SWING...1591
          a) OVERRUN IN ONE DIRECTION ONLY...1591
          b) OVERRUN IN BOTH DIRECTIONS...1591
        H-25 EXCESSIVE SHOCK WHEN STOPPING SWING (ONE DIRECTION ONLY0...1592
        H-26 EXCESSIVE ABNORMAL NOISE WHEN STOPPING SWING...1592
        H-27 EXCESSIVE HYDRAULIC DRIFT OF SWING...1593
          a) WHEN SWING HOLDING BRAKE IS RELEASED...1593
          b) WHEN SWING HOLDING BRAKE IS APPLIED...1593
      TROUBLESHOOTING 0F MACHINE MONITOR SYSTEM (M MODE)...1594
        ELECTRICAL CIRCUIT DIAGRAM FOR MACHINE MONITOR SYSTEM...1595
        M-1 WHEN THE STARTING SWITCH IS TURNED ON,NO DISPLAY IS GIVEN (LAMPS DO NOT LIGHT UP FOR 3 SECONDS)...1596
        M-2 WHEN STARTING SWITCH IS TURNED ON,LAMPS LIGHT UP FOR 3 SECONDS,BUT THEN DO NOT GO OUT...1596
        M-3 WHEN STARTING SWITCH IS TURNED ON,SOME LAMPS DO NOT LIGHT UP FOR 3 SECONDS...1597
          a) NO GAUGE LIGHT UP PREHEATING PILOT DOSE NOT LIGHT UP...1597
          b) BATTERY ELECTROLYTE LEVEL CAUTION LAMP DOSE NOT LIGHT UP ELECTRIC SYSTEM CAUTION LAMP DOSE NOT LIGHT UP...1597
          c) CHARGE CAUTION DOSE NOT LIGHT UP...1597
          d) ENGINE OIL PRESSURE CAUTION LAMP DOSE NOT LIGHT UP...1597
        M-4 WHEN STARTING SWITCH IS ON (ENGINE STOPPED), CHARGE CAUTION LAMP DOSE NOT LIGHT UP...1598
        M-5 WHEN STARTING SWITCH IS ON (ENGINE STOPPED), ENGINE OIL PRESSURE CAUTION LAMP DOSE NOT LIGHT UP ...1598
        M-6 DURING PREHEATING ,PREHEATING PILOT DOSE NOT LIGHT UP ...1599
        M-7 WHEN ENGINE IS RUNNING, ENGINE OIL PRESSURE CAUTION LAMP LIGHTS UP (ENGINE OIL PRESSURE IS NORMAL)...1599
        M-8 WHEN ENGINE IS RUNNING, CHARGE CAUTION LAMP LIGHTS UP...1600
        M-9 ABNORMALITY DISPLAY ON COOLANT TEMPERATURE GAUGE...1600
          a) AFTER ENGINE IS STARTED, LEVEL STAYS AT BOTTOM AND DOSE NOT MOVE...1600
          b) AFTER ENGINE IS ATARTED, LEVEL IMMEDIATELY RISES ENGINE IS NOT OVERHEATING BUT INDICATOR ENTERS RED RANGE ...1601
          c) WATER TEMPERATURE GAUGE GOSE OUT...1601
        M-10 ABNORMALITY DISPTAY ON FUEL GAUGE...1602
          a) ALL FUEL GAUGE SEGMENTS GO OUT...1602
          b) EVEN WHEN FUEL LEVEL GOSE DOWN, FUEL GAUGE CONTINUES TO SHOW FULL...1602
          c) EVEN WHEN TANK IS FILLED, FUEL GAUGE DOSE NOT SHOW FULL...1603
        M-11 DEFECTIVE OPERATION OF ALARM BUZZER...1604
          a) BUZZER DOSE NOT SOUND...1604
          b) BUZZER CONTINUES TO SOUND AND DOSE NOT STOP...1604
        M-12 WHEN ENGINE IS RUNING, SERVISE METER DOSE NOT ADVANCE...1605
          a) WHEN CHARGE CAUTION LAMP DOES NOT LIGHT UP...1605
          b) WHEN CHARGE CAUTION LAMP LIGHTS UP...1605
        M-13 NIGHT LIGHTING DOSE NOT LIGHT UP...1606
          a) LIGHTING OF COOLANT TEMPERATURE GAUGE, FUEL GAUGE, DEPTH DISPLAY DOSE NOT LIGHT UP...1606
          b) LIGHTING OF SERVICE METER DOSE NOT LIGHT UP ...1606
        M-14 ELECTRIC SYSTEM CAUTION LAMP STAYS LIGHTED UP, AND DOSE NOT GO OUT (ON ABNORMALITY DISPLAY ON CONTROLLER, OPERATION IS NORMAL)...1607
        M-15 HEATER DOSE NOT WORK...1608
          a) DOSE NOT WORK AT EITHER LO OR HI...1608
          b) DOSE NOT WORK AT LO ONLY...1608
          c) DOSE NOT WORK AT HI ONLY...1608
  30 DISASSEMBLY AND ASSEMBLY...1610
    SERIAL NO.:15001-19000 (MOUNT THE 4D95LE-2ENGINE)...1611
      METHOD OF USING MANUAL...1613
      PRECAUTIONS WHEN CARRYING OUT OPERATION...1614
      SPECIAL TOOL LIST...1616
      SCHEMATIC DRAWING OF SPECIAL TOOL...1620
      STARTING MOTOR...1621
        REMOVAL AND INSTALLATION...1621
      ALTERNATOR ...1622
        REMOVAL AND INSTALLATION...1622
      FUEL INJECTION PUMP...1623
        REMOVAL ...1623
        INSTALLATION...1625
      WATER PUMP...1628
        REMOVAL AND INSTALLATION...1628
      NOZZLE HOLDER ...1629
        REMOVAL AND INSTALLATION...1629
      THERMOSTAT...1630
        REMOVAL AND INSTALLATION...1630
      ENGINE OIL COOLER CORE...1631
        REMOVAL AND INSTALLATION...1631
      CYLINDER HEAD...1632
        REMOVAL...1632
        INSTALLATION...1636
      RADIATOR AND HYDRAULIC OIL COOLER ...1639
        REMOVAL ...1639
        INSTALLATION...1640
      ENGINE AND MAIN PUMP...1641
        REMOVAL...1641
        INSTALLATION...1645
      CENTER SWIVEL JOINT...1646
        REMOVAL ...1646
        INSTALLATION...1647
        DISASSEMBLY AND ASSEMBLY...1648
      TRAVEL MOTOR...1649
        REMOVAL AND INSTALLATION...1649
      SPROCKET...1650
        REMOVAL AND INSTALLATION...1650
      SWING MOTOR AND SWING MACHINERY...1651
        REMOVAL...1651
        INSTALLATION...1652
      SWING MACHINERY...1653
        DISASSEMBLY...1653
        ASSEMBLY...1656
      REVOLVING FRAME...1659
        REMOVAL...1659
        INSTALLATION...1660
      SWING CIRCLE...1661
        REMOVAL AND INSTALLATION...1661
      IDLER AND RECOIL SPRING...1662
        REMOVAL AND INSTALLATION...1662
      IDLER ...1663
        DISASSEMBLY...1663
        ASSEMBLY...1664
      RECOIL SPRING...1666
        DISASSEMBLY...1666
        ASSEMBLY ...1667
      TRACK ROLLER...1668
        REMOVAL AND INSTALLATION...1668
        DISASSEMBLY ...1669
        ASSEMBLY...1671
      CARRIER ROLLER ...1673
        REMOVAL AND INSTALLATION...1673
        DISASSEMBLY AND ASSEMBLY...1674
      RUBBER SHOE...1675
        REMOVAL AND INSTALLATION...1675
      STEEL SHOE AND ROAD LINER ...1676
        REMOVAL AND INSTALLATION...1676
      MAIN PUMP...1677
        REMOVAL...1677
        INSTALLATION...1678
      MAIN PUMP INPUT SHAFT OIL SEAL ...1679
        REMOVAL AND INSTALLATION...1679
      SELF PRESSURE  REDUCING VALVE...1680
        REMOVAL AND INSTALLATION...1680
      CONTROL VALVE...1681
        REMOVAL...1681
        INSTALLATION...1682
        DISASSEMBLY...1683
        ASSEMBLY ...1688
      MAIN RELIEF VALVE...1694
        DISASSEMBLY AND ASSEMBLY...1694
      SOLENOID VALVE...1695
        REMOVAL AND INSTALLATION...1695
      WORK EQUIPMENT L. H. PPC VALVE...1697
        REMOVAL AND INSTALLATION...1697
      WORK EQUIPMENT R. H. PPC VALVE...1698
        REMOVAL AND INSTALLATION...1698
      WORK EQUIPMENT AND SWING PPC VALVE...1699
        DISASSEMBLY...1699
        ASSEMBLY ...1700
      TRAVEL PPC VALVE ...1701
        REMOVAL AND INSTALLATION...1701
        DISASSEMBLY ...1702
        ASSEMBLY...1703
      BLAND PPC VALVE...1704
        REMOVAL AND INSTALLATION...1704
      OFFSET PPC VALVE ...1705
        REMOVAL AND INSTALLATION...1705
        DISASSEMBLY...1706
        ASSEMBLY...1707
      ARM CYLINDER...1708
        REMOVAL...1708
        INSTALLATION...1709
      BUCKET CYLINDER ...1710
        REMOVAL...1710
        INSTALLATION...1711
      BOOM CYLINDER...1712
        REMOVAL ...1712
        INSTALLATION...1713
      OFFSET CYLINDER...1714
        REMOVAL...1714
        INSTALLATION...1715
      BLADE CYLINDER...1716
        REMOVAL...1716
        MOUNT...1717
      HYDRAULIC CYLINDER...1718
        DISASSEMBLY...1718
        ASSEMBLY...1720
      WORK EQUIPMENT ...1723
        REMOVAL...1723
        INSTALLATION...1724
      BUCKET ...1725
        REMOVAL AND INSTALLATION...1725
      ARM ...1726
        REMOVAL...1726
        INSTALLATION...1727
      SECOND BOOM...1728
        REMOVAL...1728
        INSTALLATION...1731
      BUCKET AND ARM ...1732
        REMOVAL...1732
        INSTALLATION...1733
      FIRST BOOM...1734
        REMOVAL ...1734
        INSTALLATION...1736
      BLADE...1737
        REMOVAL AND INSTALLATION...1737
      OPERATOR'S CAB ...1738
        REMOVAL AND INSTALLATION...1738
      FLOOR FRAME...1739
        REMOVAL...1739
        INSTALLATION...1742
      FUEL TANK ...1743
        REMOVAL AND INSTALLATION...1743
      CONTROLLER ...1744
        REMOVAL AND INSTALLATION...1744
      MONITOR...1745
        REMOVAL AND INSTALLATION...1745
      COUNTERWEIGHT...1746
        REMOVAL AND INSTALLATION...1746
    SERIAL NO.: 19001 AND UP (MOUNT THE 4D95LE-2ENGINE...1747
      RADIATOR AND HYD RAULIC OIL COOLER ...1748
        REMOVAL AND INSTALLATION...1748
      ENGINE MAIN PUMP ...1749
        REMOVAL...1749
        INSTALLATION...1753
      REVOLVING FRAME ...1754
        REMOVAL...1754
        INSTALLATION...1755
      MAIN PUMP ...1756
        REMOVAL ...1756
        INSTALLATION...1757
      FLOOR FRAME...1758
        REMOVAL...1758
        INSTALLATION...1760
      COUNTERWEIGHT...1761
        REMOVAL AND INSTALLATION...1761
  40 MAINTENANCE STANDARD...1762
    SWING MACHINERY...1763
    SWING CIRCLE...1764
    TRACK FRAME, RECOIL SPRING...1765
    IDLER...1766
    TRACK ROLLER...1767
    CARRIER ROLLER...1768
    SPROCKET...1769
    TRACK SHOE...1770
    HYDRAULIC PUMP...1773
    CONTROL VALVE...1775
    SELF PRESSURE REDUCING VALVE...1782
    SWING MOTOR...1784
    CENTER SWIVEL JOINT...1785
    WORK EQUIPMENT, SWING PPC VALVE...1786
    TRAVEL PPC VALVE...1787
    BLADE, OFFSET PPC VALVE...1788
    HYDRAULIC CYLINDER...1789
    WORK EQUIPMENT...1791
    DIMENSION OF WORK EQUIPMENT...1795
  90 OTHERS...1799
    HYDRAULIC CIRCUIT DIAGRAM...1800
      STANDERD SPEC...1800
      SERVICE VALVE SPEC...1801
      SLIDE ARM SPEC...1802
      MONO BOOM SPEC...1803
    ELECTRICAL CIRCUIT DIAGRAM...1804
      STANDERD SPEC. ...1804
      LONG ARM SPEC...1805

Komatsu Hydraulic Excavator PC75UU Repair Service Manuals