Komatsu Hydraulic Excavators PC750SE-6K, PC750LC-6K Repair Service Manual

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Price: US$ 69.00

Complete service repair manual with Electrical Wiring Diagrams for Komatsu Hydraulic Excavators PC750SE-6K, PC750LC-6K, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.

Komatsu Hydraulic Excavators PC750SE-6K, PC750LC-6K 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: 2,142 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English

EEAM008708 - Hydraulic Excavator PC750SE-6K, PC750LC-6K Operation & Maintenance Manual.pdf
UEAM002901 - Hydraulic Excavator PC750LC-7K, PC750SE-7K Operation & Maintenance Manual.pdf
UEBM001801 - Hydraulic Excavator PC750SE-6K, PC750LC-6K Shop Manual.pdf
UEBM002400 - Hydraulic Excavator PC750SE-7K, PC750LC-7K Shop Manual.pdf

MAIN SECTIONS
EEAM008708 - Hydraulic Excavator PC750SE-6K, PC750LC-6K Operation & Maintenance Manual....2
  FOREWORD....4
    FOREWORD....5
    SAFETY INFORMATION....7
      NOISE....8
      VIBRATION....8
    INTRODUCTION....9
      INTENDED USE....9
      FEATURES....9
      RUNNING IN THE MACHINE....9
    LOCATION OF PLATES, TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR....11
      MACHINE SERIAL NO. PLATE POSITION....11
      ENGINE SERIAL NO. PLATE POSITION....11
      SERVICE METER POSITION....12
      TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR....12
      MACHINE SERIAL PLATE....13
  SAFETY....20
    GENERAL PRECAUTIONS....21
    PRECAUTIONS DURING OPERATION....29
      BEFORE STARTING THE ENGINE....29
      AFTER STARTING ENGINE....31
      TRANSPORTATION....38
      BATTERY....39
      TOWING....41
      LIFTING OPERATIONS....42
    PRECAUTIONS FOR MAINTENANCE....43
      BEFORE CARRYING OUT MAINTENANCE....43
      DURING MAINTENANCE....47
    POSITION FOR ATTACHING SAFETY LABELS....55
  OPERATION....62
    GENERAL VIEW....63
      GENERAL VIEW OF MACHINE....63
    EXPLANATION OF COMPONENTS....64
      MACHINE MONITOR....65
        BASIC CHECK ITEMS (A)....67
        CAUTION ITEMS (B)....69
        EMERGENCY STOP ITEMS (C)....70
        METER DISPLAY PORTION (D)....71
        SWITCHES (E)....75
      SWITCHES....77
      CONTROL LEVERS, PEDALS....84
      CEILING WINDOW....86
      FRONT WINDOW....87
      DOOR LOCK....91
      LOCKABLE COMPARTMENTS AND FUEL CAP....91
        OPENING AND CLOSING CAP WITH LOCK (for the fuel tank filler port)....92
      OPENING AND CLOSING LOCKABLE COMPARTMENTS....92
      LUGGAGE BOX....92
      ASHTRAY....93
      HANDLING AIR CONDITIONER....93
        GENERAL LOCATIONS ON CONTROL PANEL....93
        PRECAUTIONS WHEN USING AIR CONDITIONER....95
      RADIO-CASSETTE (OPTION)....96
        PRECAUTION DURING USE....96
      FUSE....96
        Fuse Capacities and Circuit Names....97
      FUSIBLE LINK....97
      CIRCUIT BREAKER....98
      CONTROLLERS....99
      TOOLKIT HOLDER (CLOTH BAG)....99
      GREASE PUMP....99
        Method of Use....100
        Precautions when Using....101
        Supplying Grease....101
      ACCUMULATOR HANDLING....103
        RELEASING PRESSURE IN THE CONTROL CIRCUIT ON MACHINES EQUIPPED WITH AN ACCUMULATOR....103
    OPERATION....105
      CHECKS BEFORE STARTING ENGINE....105
        WALK-AROUND CHECK....105
        CHECK BEFORE STARTING....106
        ADJUST OPERATORS SEAT....113
        Rearview Mirrors....115
        Seat Belt....115
        OPERATIONS AND CHECKS BEFORE STARTING ENGINE....117
      STARTING ENGINE....118
        NORMAL STARTING....118
        STARTING IN COLD WEATHER....119
      OPERATIONS AND CHECKS AFTER STARTING ENGINE....121
        WHEN NORMAL....121
        IN COLD AREAS (AUTOMATIC WARMING-UP OPERATION)....123
      TRAVELLING....126
        TRAVELLING FORWARD....126
        TRAVELLING BACKWARD....128
      CHANGING DIRECTION....129
      STOPPING MACHINE....132
      SWINGING....133
      OPERATION OF WORK EQUIPMENT....134
      WORKING MODE OPERATION....135
      PROHIBITIONS FOR OPERATION....136
      PRECAUTIONS FOR OPERATION....138
      PRECAUTIONS WHEN TRAVELING UP OR DOWN HILLS....139
      HOW TO ESCAPE FROM MUD....140
        WHEN ONE SIDE IS STUCK....141
        WHEN BOTH SIDES ARE STUCK....141
      WORK POSSIBLE USING HYDRAULIC EXCAVATORS....141
        BACKHOE WORK....141
        DITCHING WORK....142
        LOADING WORK....142
      REPLACEMENT OF BUCKET....142
        REPLACEMENT....142
      PARKING MACHINE....144
      CHECK AFTER FINISHING WORK....145
      STOPPING ENGINE....145
      CHECK AFTER STOPPING ENGINE....146
      LOCKING....147
    TRANSPORTATION....148
      LOADING, UNLOADING WORK....148
      PRECAUTIONS FOR LOADING....150
      PRECAUTIONS FOR TRANSPORTATION....150
      TRANSPORTATION POSTURE....151
      PROCEDURE FOR INCREASING OR REDUCING TRACK FRAME GAUGE....156
    COLD WEATHER OPERATION....158
      PRECAUTIONS FOR LOW TEMPERATURE....158
        FUEL AND LUBRICANTS....158
        COOLANT....158
        BATTERY....159
      PRECAUTIONS AFTER COMPLETION OF WORK....159
      AFTER COLD WEATHER....160
    LONG-TERM STORAGE....161
      BEFORE STORAGE....161
      DURING STORAGE....161
      AFTER STORAGE....162
      STARTING MACHINE AFTER LONG-TERM STORAGE....162
    TROUBLESHOOTING....163
      WHEN MACHINE RUNS OUT OF FUEL....163
      PHENOMENA THAT ARE NOT FAILURES....163
      METHOD OF TOWING MACHINE....163
      PRECAUTIONS ON PARTICULAR JOBSITES....164
      IF BATTERY IS DISCHARGED....164
        REMOVAL AND INSTALLATION OF BATTERY....164
        STARTING ENGINE WITH BOOSTER CABLE....165
      OTHER TROUBLE....167
        ELECTRICAL SYSTEM....167
        CHASSIS....168
        Engine....169
        Electronic Control System....171
  MAINTENANCE....172
    GUIDES TO MAINTENANCE....173
    OUTLINES OF SERVICE....176
      OUTLINE OF OIL, FUEL, COOLANT....176
        OIL....176
        USE OF BIO-DEGRADEABLE OIL....177
        FUEL....177
        COOLANT....178
        GREASE....178
        STORING OIL AND FUEL....179
        FILTERS....179
      OUTLINE OF ELECTRICAL SYSTEM....179
      OUTLINE OF HYDRAULIC SYSTEM....180
      RELEASING PRESSURE....181
        RELEASING PRESSURE FROM WORK EQUIPMENT CIRCUIT, SWING CIRCUIT, TRAVEL CIRCUIT....181
      BLEEDING AIR FROM CIRCUIT....181
        Procedure for bleeding air....182
    WEAR PARTS....184
      WEAR PARTS LIST....184
    USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE....186
      PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS....186
    STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS....190
      LIST OF NECESSARY TOOLS....190
      TIGHTENING TORQUE LIST....191
    SAFETY CRITICAL PARTS....192
      SAFETY CRITICAL PARTS LIST....193
    MAINTENANCE SCHEDULE....194
      MAINTENANCE SCHEDULE CHART....194
    SERVICE PROCEDURE....196
      INITIAL 100 HOURS SERVICE....196
      INITIAL 250 HOURS SERVICE....196
      WHEN REQUIRED....196
        Air Cleaner Element - Check/Clean/Replace....196
        Checking....197
        Air Cleaner Element - Install....199
        Air Cleaner Inner Element - Replace....200
        Cooling System Coolant - Clean/Change....202
        CHECK AND TIGHTEN TRACK SHOE BOLTS....205
        CHECK AND ADJUST TRACK TENSION....206
        CHECK ELECTRICAL INTAKE AIR HEATER....208
        REPLACE BUCKET TEETH (HORIZONTAL PIN TYPE)....208
        ADJUST BUCKET CLEARANCE....209
        Replacement of Fan Belt and Adjustment of Auto Tensioner....211
        CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID....212
        AIR CONDITIONER CHECK AND MAINTENANCE....213
        Clean Line Filter, Remove Dirt....214
      CHECK BEFORE STARTING....215
        CHECK COOLANT LEVEL....215
        CHECK OIL LEVEL IN ENGINE OIL PAN....215
        CHECK FUEL LEVEL....215
        CHECK OIL LEVEL IN HYDRAULIC TANK....215
        CHECK FOR CLOGGING OF AIR CLEANER....215
        CHECK ELECTRICAL WIRING....215
        CHECK FUNCTION OF HORN....215
        CHECK OIL LEVEL IN SWING MACHINERY CASE, ADD OIL....216
        CHECK OIL LEVEL IN P.T.O. CASE, ADD OIL....216
      EVERY 10 HOURS SERVICE....217
        LUBRICATING....217
        DRAIN FUEL - WATER SEPARATOR....219
      EVERY 100 HOURS MAINTENANCE....220
        Swing Circle - Lubricate (4 points)....220
        Fuel Tank - Drain....220
      EVERY 250 HOURS MAINTENANCE....220
        Final Drive Case Oil Level - Check/Add....220
        Battery Electrolyte Level - Check....221
        Fuel tank Strainer - Check/Clean....222
        Track Frame and Axle Connecting Bolts - Check/ Tighten....223
        Alternator Belt Tension - Inspect/Adjust....223
        Air Conditioner Compressor Belt Tension - Inspect/Adjust....225
      EVERY 500 HOURS MAINTENANCE....226
        Fuel Filter Cartridge - Replace....226
        Swing Pinion Gear Oil Level - Check/Add....228
        Hydraulic Tank Strainer - Clean....229
        Hydraulic Oil Filter Element - Replace....230
        Radiator Fins, Oil Cooler Fins, After Cooler Fins, Fuel Filter Fins and Condenser Fins (Only for .....231
        Air Conditioner FRESH/RECIRC Air Filters (Only for Machines Equipped with Air Conditioner) - Clean....232
        Pilot Filter Element - Replace....233
        P.T.O Case Oil Strainer - Clean....234
        Fan Belt - Inspect....234
        Drain Filter Cartridge - Replace....235
        Change Oil In Engine Oil Pan, Replace Engine Oil Filter Cartridge....235
      EVERY 1000 HOURS MAINTENANCE....238
        Swing Machinery Case Oil - Change....238
        P.T.O Case Oil - Change....239
        Turbocharger Fastening Parts - Inspect/Tighten....240
        Turbocharger Rotor Play - Inspect....240
        Corrosion Resister Cartridge - Replace....240
        Fan Pulley Assembly and Tension Pulley Assembly - Lubricate....241
        Hydraulic Tank Breather Filter Element - Replace....242
        Welded Structure - Check....243
      EVERY 2000 HOURS MAINTENANCE....246
        Final Drive Case Oil - Change....246
        Injector - Check....246
        Engine Crankcase Breather - Clean....247
        Turbocharger - Inspect....247
        Alternator and Starting Motor - Inspect....247
        Engine Valve Clearances - Inspect....248
      EVERY 4000 HOURS MAINTENANCE....248
        Water Pump - Inspect....248
        Vibration Damper - Inspect....248
        Fan Pulley and Tension Pulley - Check....248
        Checking for Looseness of High-pressure Clamp, Hardening of Rubber....249
        Injector Nozzle Assembly - Replace....250
        Checking for Missing Fuel Spray Prevention Cap, Hardening of Rubber....250
      EVERY 5000 HOURS MAINTENANCE....251
      EVERY 8000 HOURS MAINTENANCE....253
        High-pressure Piping Clamp - Replace....253
        Fuel Spray Prevention Cap - Replace....253
  SPECIFICATIONS....256
    SPECIFICATIONS....257
    MEMO....259
  OPTIONS AND ATTACHMENTS....260
    GENERAL PRECAUTIONS....261
      PRECAUTIONS RELATED TO SAFETY....261
      PRECAUTIONS WHEN INSTALLING ATTACHMENTS....262
    OPTIONAL PARTS AND ATTACHMENTS....263
      WORK EQUIPMENT COMBINATIONS....263
      SELECTION OF TRACK SHOES....264
    MEMO....267
  LOADING SHOVEL....268
    GENERAL LOCATIONS....269
    INSTRUMENTS AND CONTROLS....270
      SWITCHES....270
      OPERATION OF WORK EQUIPMENT....271
    PRECAUTIONS FOR MACHINE OPERATION....274
      PRECAUTONS DURING OPERATION....274
    PRECAUTIONS WHEN DISASSEMBLING MACHINE....278
      RELEASING PRESSURE....278
        RELEASING PRESSURE FROM WORK EQUIPMENT CIRCUIT, SWING CIRCUIT, TRAVEL CIRCUIT....278
        RELEASING PRESSURE IN ACCUMULATOR CIRCUIT....278
    MAINTENANCE....279
      CHECK BEFORE STARTING....279
        CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL....279
      EVERY 10 HOURS SERVICE....280
        LUBRICATING....281
        CHANGE OIL IN HYDRAULIC TANK, CLEAN STRAINER....281
    EXCAVATOR WORK....284
    TRANSPORTATION....285
      PARTS FOR TRANSPORT....285
    CONSUMABLE PARTS LIST....287
    SPECIFICATIONS....288
    COMBINATIONS OF WORK EQUIPMENT....289
      COMBINATIONS OF WORK EQUIPMENT....289
UEAM002901 - Hydraulic Excavator PC750LC-7K, PC750SE-7K Operation & Maintenance Manual....290
  COVER....290
  FOREWORD....292
    FOREWORD....293
    SAFETY INFORMATION....294
      NOISE....296
      VIBRATION....296
      BREAKING-IN THE NEW MACHINE....297
    INTRODUCTION....298
      DIRECTIONS OF MACHINE....298
    PRODUCT INFORMATION....299
      MACHINE SERIAL NUMBER PLATE AND ITS LOCATION....299
      ENGINE SERIAL NUMBER PLATE AND ITS LOCATION....299
      SERVICE METER LOCATION....300
      TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR....300
        MACHINE SERIAL PLATE....301
      FOREWORD....302
      SAFETY....302
      OPERATION....303
      MAINTENANCE....306
      SPECIFICATIONS....308
      ATTACHMENTS AND OPTIONS....308
      LOADING SHOVEL....308
      INDEX....309
      COLOPHON....309
  SAFETY....310
    SAFETY INFORMATION....311
    SAFETY LABELS....313
      LOCATION OF SAFETY LABELS....314
      SAFETY LABELS....315
    SAFETY INFORMATION....322
    SAFETY MACHINE OPERATION....332
      STARTING ENGINE....332
      OPERATION....334
      TRANSPORTATION....341
      BATTERY....342
      TOWING....344
      LIFTING OBJECTS WITH BUCKET....345
    SAFETY MAINTENANCE INFORMATION....346
  OPERATION....354
    MACHINE VIEW ILLUSTRATIONS....356
      OVERALL MACHINE VIEW....356
      CONTROLS AND GAUGES....357
    DETAILED CONTROLS AND GAUGES....359
      MONITORING SYSTEM....359
        Basic Operation Of Machine Monitor....360
        Basic Check Monitors....362
        Caution Monitors....364
        Emergency Monitors....366
        Meter Display Portion....368
        Monitor Switches Portion....372
      SWITCHES....382
      CONTROL LEVERS AND PEDALS....389
      SUN ROOF....393
        Opening....393
        Closing....393
      WINDSHIELD....394
      EMERGENCY EXIT FROM OPERATOR'S CAB....399
      DOOR LOCK....399
      CAP WITH LOCK....400
      HOT AND COOL BOX....401
      MAGAZINE BOX....401
      ASHTRAY....402
      AIR CONDITIONER CONTROLS....403
        Air Conditioner Control Panel....403
        Method Of Operation....408
        Use Air Conditioner With Care....414
        Air Conditioner Maintenance....414
        Other Functions....415
      CAB RADIO....416
        Use Radio With Care....416
      AUXILIARY ELECTRIC POWER....417
        24V power source....417
        12V power source....417
      FUSE....418
      CIRCUIT BREAKER....419
      CONTROLLERS....420
      TOOL BOX....420
      GREASE PUMP....420
        Method of Use....421
        Precautions when Using....422
        Supplying Grease....423
      ACCUMULATOR....424
        Releasing Hydraulic Pressure With Accumulator....424
    MACHINE OPERATIONS AND CONTROLS....425
      BEFORE STARTING ENGINE....425
        Walk-Around Checks....425
        Checks Before Starting....426
        Adjustment....437
        Seat Belt....439
        Operations Before Starting Engine....440
      STARTING ENGINE....443
        Normal Starting....443
        Starting Engine In Cold Weather....445
      AFTER STARTING ENGINE....448
        Warming-Up Operation....448
        In Cold Weather Areas....452
      STOPPING THE ENGINE....457
      MACHINE OPERATION....458
        Preparations For Moving The Machine Off....458
        Moving Machine Forward....459
        Moving Machine Backward....460
        Stopping Machine....461
      STEERING THE MACHINE....462
        Steering....462
      SWINGING....464
      WORK EQUIPMENT CONTROLS AND OPERATIONS....465
      WORKING MODE....467
      PROHIBITED OPERATIONS....468
      GENERAL OPERATION INFORMATION....470
      TRAVELING ON SLOPES....472
      ESCAPE FROM MUD....474
        Stuck One Side Of Track....474
        Stuck Both Sides Of Tracks....474
      RECOMMENDED APPLICATIONS....475
        Backhoe Work....475
        Ditching Work....475
        Loading Work....475
      BUCKET REPLACEMENT....476
        Replacement....476
      PARKING MACHINE....478
      CHECK AFTER SHUT OFF ENGINE....479
      LOCKING....480
    TRANSPORTATION....481
      PRECAUTIONS FOR TRANSPORTATION....481
      LIFTING MACHINE....481
      SHIPPING MACHINE INFORMATION....483
      TRANSPORTATION POSTURE....484
      PROCEDURE FOR INCREASING OR REDUCING TRACK FRAME GAUGE....489
    COLD WEATHER OPERATION....491
      COLD WEATHER OPERATION INFORMATION....491
        Fuel And Lubricants....491
      AFTER DAILY WORK COMPLETION....493
      AFTER COLD WEATHER SEASON....493
    LONG TERM STORAGE....494
      BEFORE STORAGE....494
      DURING STORAGE....494
      AFTER STORAGE....495
      STARTING MACHINE AFTER LONG-TERM STORAGE....495
    TROUBLES AND ACTIONS....496
      RUNNING OUT OF FUEL....496
      PHENOMENA THAT ARE NOT FAILURES....498
      TOWING THE MACHINE....499
      SEVERE JOB CONDITION....499
      DISCHARGED BATTERY....500
        Battery Removal And Installation....500
        Battery Charges....501
        Starting Engine With Booster Cables....502
      OTHER TROUBLE....504
        Electrical System....504
        Chassis....505
        Engine....506
        Electronic Control System....508
        Point Of Contact To Telephone When Error Occurs....509
  MAINTENANCE....510
    MAINTENANCE INFORMATION....511
    LUBRICANTS, COOLANT AND FILTERS....513
      HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC....513
        Oil....513
        Fuel....513
        Cooling System Coolant....514
        Grease....514
        Carrying out KOWA (Komatsu Oil Wear Analysis)....515
        Oil And Fuel Storage....516
        Filters....516
      ELECTRIC SYSTEM MAINTENANCE....516
    WEAR PARTS....517
      WEAR PARTS LIST....518
    LUBRICANTS, FUEL AND COOLANT SPECIFICATIONS....519
      PROPER SELECTION....519
    TIGHTENING TORQUE SPECIFICATIONS....523
      TIGHTENING TORQUE LIST....523
    SAFETY CRITICAL PARTS....524
      SAFETY CRITICAL PARTS LIST....525
    MAINTENANCE SCHEDULE....526
      MAINTENANCE SCHEDULE CHART....526
    MAINTENANCE PROCEDURE....528
      INITIAL 100 HOURS MAINTENANCE (ONLY AFTER THE FIRST 100 HOURS)....528
      INITIAL 500 HOURS MAINTENANCE (ONLY AFTER THE FIRST 500 HOURS)....528
      WHEN REQUIRED....529
        CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT....529
        CLEAN INSIDE OF COOLING SYSTEM....534
        CHECK AND TIGHTEN TRACK SHOE BOLTS....538
        CHECK AND ADJUST TRACK TENSION....539
        CHECK ELECTRICAL INTAKE AIR HEATER....541
        REPLACE BUCKET TEETH (HORIZONTAL PIN TYPE)....541
        ADJUST BUCKET CLEARANCE....542
        REPLACE OF FAN BELT AND ADJUSTMENT OF AUTO TENSIONER....543
        CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID....544
        CHECK AND ADJUST AIR CONDITIONER....545
        CLEAN LINE FILTER, REMOVE DIRT....546
        BLEEDING AIR FROM HYDRAULIC SYSTEM....547
        METHOD FOR RELEASING INTERNAL PRESSURE IN HYDRAULIC CIRCUIT....550
        CHECK NITROGEN GAS CHARGE PRESSURE IN ACCUMULATOR (control circuit)....551
      CHECK BEFORE STARTING....552
      EVERY 10 HOURS MAINTENANCE....553
        LUBRICATING....553
      EVERY 100 HOURS MAINTENANCE....556
        LUBRICATING SWING CIRCLE....556
      EVERY 250 HOURS MAINTENANCE....557
        CHECK OIL LEVEL IN FINAL DRIVE CASE, ADD OIL....557
        CHECK LEVEL OF BATTERY ELECTROLYTE....558
        CHECK, CLEAN FUEL TANK STRAINER....561
        CHECK AND TIGHTEN TRACK FRAME AND AXLE CONNECTING BOLTS....561
        CHECK ALTERNATOR DRIVE BELT TENSION, ADJUST....562
        CHECK AIR CONDITIONER COMPRESSOR BELT TENSION, ADJUST....563
      EVERY 500 HOURS MAINTENANCE....564
        REPLACE FUEL FILTER CARTRIDGE....564
        REPLACEMENT OF ADDITIONAL FUEL FILTER CARTRIDGE (IF EQUIPPED)....565
        CHECK SWING PINION GREASE LEVEL, ADD GREASE....567
        CLEAN AND INSPECT RADIATOR FINS, OIL COOLER FINS, AFTER COOLER FINS, FUEL COOLER FINS, AND CONDENSER FINS (ONLY MACHINES EQUIPPED WITH AIR CONDITIONER)....568
        CLEAN FRESH/RECIRC AIR FILTERS OF AIR CONDITIONER (ONLY FOR MACHINES EQUIPPED WITH AIR CONDITIONER)....569
        REPLACE PILOT FILTER ELEMENT....571
        CLEAN STRAINER OF P.T.O LUBRICATING OIL FILTER....572
        CHECK FAN BELT....572
        REPLACE DRAIN FILTER CARTRIDGE....573
        CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE....574
      EVERY 1000 HOURS MAINTENANCE....576
        REPLACE BREATHER ELEMENT IN HYDRAULIC TANK....576
        REPLACE HYDRAULIC OIL FILTER ELEMENT....577
        CHANGE OIL IN SWING MACHINERY CASE....579
        CHANGE OIL IN P.T.O CASE....581
        CHECK ALL TIGHTENING PARTS OF TURBOCHARGER....581
        CHECK PLAY TURBOCHARGER ROTOR....581
        REPLACE CORROSION RESISTOR CARTRIDGE....582
        LUBRICATING FAN PULLEY ASSEMBLY, TENSION PULLEY ASSEMBLY....582
        CHECK WELDED STRUCTURE....583
        CHECK NITROGEN GAS CHARGE PRESSURE IN ACCUMULATOR (for breaker)....585
      EVERY 2000 HOURS MAINTENANCE....586
        CHANGE OIL IN FINAL DRIVE CASE....586
        CHECK INJECTOR....586
        CLEAN HYDRAULIC TANK STRAINER....587
        CLEAN ENGINE BREATHER....588
        CLEAN, CHECK TURBOCHARGER....588
        CHECK ALTERNATOR, STARTING MOTOR....588
        CHECK ENGINE VALVE CLEARANCE, ADJUST....588
      EVERY 4000 HOURS MAINTENENCE....589
        CHECK WATER PUMP....589
        CHECK VIBRATION DAMPER....589
        CHECK FAN PULLEY AND TENSION PULLEY....589
        CHECK FOR LOOSENESS OF HIGH-PRESSURE CLAMP, HARDENING OF RUBBER....589
        REPLACE INJECTOR NOZZLE ASSEMBLY....590
        CHECK FOR MISSING FUEL SPRAY PREVENTION CAP, HARDENING OF RUBBER....591
      EVERY 5000 HOURS MAINTENANCE....592
        CHANGE OIL IN HYDRAULIC TANK....592
      EVERY 8000 HOURS MAINTENANCE....593
        REPLACE HIGH-PRESSURE PIPING CLAMP....593
        REPLACE FUEL SPRAY PREVENTION CAP....593
  SPECIFICATIONS....594
    SPECIFICATIONS....595
  ATTACHMENTS AND OPTIONS....598
    GENERAL PRECAUTIONS FOR SAFETY....599
      PRECAUTIONS WHEN SELECTING....599
      READ THE INSTRUCTION MANUAL THOROUGHLY....599
      PRECAUTIONS WHEN REMOVING OR INSTALLING....599
      PRECAUTIONS WHEN USING....600
    ATTACHMENT GUIDE....601
      COMBINATIONS OF WORK EQUIPMENT....601
        Working Range Diagram....603
  LOADING SHOVEL....604
    GENERAL LOCATIONS....605
    INSTRUMENTS AND CONTROLS....606
      SWITCHES....606
      OPERATION OF WORK EQUIPMENT....607
    PRECAUTIONS FOR MACHINE OPERATION....609
      PRECAUTONS DURING OPERATION....609
        Phenomena that do not indicate failure....612
    PRECAUTIONS WHEN DISASSEMBLING MACHINE....613
      RELEASING PRESSURE....613
        RELEASING PRESSURE FROM WORK EQUIPMENT CIRCUIT, SWING CIRCUIT, TRAVEL CIRCUIT....613
        RELEASING PRESSURE IN ACCUMULATOR CIRCUIT....613
    MAINTENANCE....614
      CHECK BEFORE STARTING....614
        CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL....614
      EVERY 10 HOURS SERVICE....616
        LUBRICATING....616
        CHANGE OIL IN HYDRAULIC TANK, CLEAN STRAINER....617
    EXCAVATOR WORK....619
    TRANSPORTATION....620
      PARTS FOR TRANSPORT....620
    CONSUMABLE PARTS LIST....621
    SPECIFICATIONS....622
    COMBINATIONS OF WORK EQUIPMENT....623
      COMBINATIONS OF WORK EQUIPMENT....623
  INDEX....624
    <A>....626
    <B>....626
    <C>....626
    <D>....626
    <E>....626
    <F>....626
    <G>....626
    <H>....626
    <L>....626
    <M>....626
    <O>....626
    <P>....626
    <R>....627
    <S>....627
    <T>....627
    <W>....627
    <Y>....627
  COLOPHON....628
UEBM001801 - Hydraulic Excavator PC750SE-6K, PC750LC-6K Shop Manual....630
  GENERAL ....658
    SPECIFICATION DRAWINGS ....659
    FUEL, COOLANT AND LUBRICANTS ....667
  PTO ....669
  PTO LUBRICATION SYSTEM ....670
  POWER TRAIN SWING MACHINERY SWING CIRCLE ....675
  FINAL DRIVE ....677
  TRACK FRAME AND RECOIL SPRING ....679
  IDLER CARRIER ROLLER ....683
  TRACK ROLLER ....684
  TRACK SHOE ( 1/ 2) ....685
  ( 2/ 2) ....687
  MOTOR GREASE PUMP ....690
  HYDRAULIC TANK ....691
  HYDRAULIC PUMP ....693
  LINE OIL FILTER ....723
  PILOT OIL FILTER ....723
  DRAIN OIL FILTER ....724
  L. H. 5- SPOOL CONTROL VALVE ....725
  R. H. 4- SPOOL CONTROL VALVE ....731
  STRAIGHT- TRAVEL VALVE ....737
  SWING MOTOR ....740
  CENTER SWIVEL JOINT ....745
  TRAVEL MOTOR ....746
  PPC CONTROL RELIEF VALVE ....756
  SAFETY LOCK VALVE ....757
  PPC ACCUMULATOR ....758
  VALVE CONTROL ....759
  WORK EQUIPMENT, SWING PPC VALVE ....760
  TRAVEL PPC VALVE ....765
  SOLENOID VALVE ....769
  HYDRAULIC CYLINDER ....775
  WORK EQUIPMENT ....779
  DIMENSIONS OF WORK EQUIPMENT ....783
  AIR CONDITIONER ....787
  ENGINE CONTROL ....788
  MACHINE CONTROL SYSTEM ....793
  MONITOR SYSTEM ....821
  SENSORS ....828
  TESTING AND ADJUSTING ....832
    STANDARD VALUE TABLE FOR ENGINE ....833
    STANDARD VALUE TABLE FOR CHASSIS ....834
  STANDARD VALUE TABLE FOR ELECTRICAL PARTS ....843
  TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING ....856
  MEASURING AIR SUPPLY PRESSURE ( BOOST PRESSURE) ....859
  MEASURING EXHAUST TEMPERATURE ....860
  MEASURING EXHAUST COLOR ....861
  ADJUSTING VALVE CLEARANCE ....862
  MEASURING BLOW- BY PRESSURE ....863
  MEASURING COMPRESSION PRESSURE ....863
  MEASURING ENGINE OIL PRESSURE ....864
  HANDLING EQUIPMENT IN FUEL CIRCUIT ....865
  RELEASING REMAINING PRESSURE IN FUEL SYSTEM ....865
  MEASURING FUEL PRESSURE ....866
  REDUCED CYLINDER MODE OPERATION FOR ENGINE ....867
  BLEEDING AIR FROM FUEL CIRCUIT ....869
  CHECKING FOR LEAKAGE IN FUEL CIRCUIT ....871
  TESTING AND ADJUSTING ALTERNATOR BELT TENSION ....872
  TESTING AND ADJUSTING FAN BELT TENSION ....873
  TESTING AND ADJUSTING AIR CONDITIONER COMPRESSOR DRIVE BELT TENSION ....874
  HANDLING ENGINE CONTROL- LER HIGH VOLTAGE CIRCUIT ....875
  ADJUSTING ENGINE SPEED SENSOR ....876
  TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT ....877
  TESTING AND ADJUSTING CONTROL PUMP CIRCUIT OIL PRESSURE ....880
  TESTING AND ADJUSTING PISTON PUMP CONTROL PRESSURE ....882
  MEASURING SERVO PISTON STROKE ....888
  MEASURING PPC VALVE OUT- PUT PRESSURE ....889
  TESTING SOLENOID VALVE OUTPUT PRESSURE ....890
  ADJUSTING WORK EQUIP- MENT, SWING PPC VALVE ....891
  TESTING TRAVEL DEVIATION ....892
  TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT ....895
  MEASURING OIL LEAKAGE ....896
  TESTING CLEARANCE OF SWING CIRCLE BEARING ....901
  TESTING AND ADJUSTING TRACK SHOE TENSION ....902
  BLEEDING AIR ....903
  RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT ....905
  PROCEDURE FOR CHECKING DIODE ....906
  POINTS TO REMEMBER WHEN TROUBLESHOOTING ....909
  SEQUENCE OF EVENTS IN TROUBLESHOOTING POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE CHECKS BEFORE TROUBLESHOOTING ....919
  CONNECTOR TYPES AND MOUNTING LOCATIONS ....920
  CONNECTION TABLE FOR CONNECTOR PIN NUMBERS ....927
  EXPLANATION OF CONTROL MECHANISM FOR ELECTRICAL SYSTEM ....950
  DISPLAY METHOD AND SPECIAL FUNCTIONS OF MONITOR PANEL ....951
  METHOD OF USING JUDGEMENT TABLE ....966
  METHOD OF USING TROUBLESHOOTING CHARTS ....968
  DETAILS OF TROUBLESHOOTING AND TROUBLESHOOTING PROCEDURE ....969
  ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE ....975
  N- 1 [ E117, E118 occur at same time ] Monitor panel communication abnormality ....978
  N- 2 [ E117, E218 occur at same time ] Engine controller communication abnormality ....980
  N- 3 [ E118, E955 occur at same time ] Pump controller communication abnormality ....982
  ACTION TAKEN BY CONTROLLER AND CONDITION OF MACHINE WHEN ERROR CODE IS DISPLAYED ....985
  ACTION TAKEN BY CONTROLLER AND CONDITION OF MACHINE WHEN ERROR CODE IS DISPLAYED ....985
  E- 1 [ E91b ] ( Abnormality in engine speed Ne sensor system) is displayed ....997
  E- 2 [ E91C ] ( Abnormality in engine G rotation sensor system) is displayed ....998
  E- 3 [ E920 ] ( Abnormality in model selection system) is displayed ....999
  E- 4 [ E922 ] ( Engine overrun) is displayed ....1000
  E- 5 [ E924 ] ( Drop in engine oil pressure) is displayed ....1001
  E- 6 [ E931 ] ( Abnormality in fuel control dial sensor system) is displayed ....1002
  E- 7 [ E934 ] ( Abnormality in engine water high- temperature sensor system) is displayed ....1003
  E- 8 [ E936 ] ( Abnormality in engine oil pressure switch system) is displayed ....1004
  E- 9 [ E93C ] ( Abnormality in boost pressure sensor system) is displayed ....1006
  E- 10 [ E93d ] ( Abnormality in fuel temperature sensor system) is displayed ....1007
  E- 11 [ E954 ] ( Short circuit in starting switch C system) is displayed ....1008
  12 [ E955 ] ( Abnormality in network system) is displayed ....1008
  E- 13 [ E956 ] ( Power source system abnormality 1) is displayed ....1009
  E- 14 [ E957 ] ( Power source system abnormality 2) is displayed ....1011
  15 [ E95A ] ( Abnormality in fuel injection amount adjustment switch signal) is displayed ....1011
  E- 16 [ E96A ] ( Abnormality in engine water low- temperature sensor system) is displayed ....1012
  E- 17 [ E970 ] ( Excess current in fuel supply pump PCV1 system) is displayed ....1013
  E- 18 [ E971 ] ( Excess current in fuel supply pump PCV2 system) is displayed ....1014
  E- 19 [ E974 ] ( Disconnection in fuel supply pump PCV1 system) is displayed ....1015
  E- 20 [ E975 ] ( Disconnection in fuel supply pump PCV2 system) is displayed ....1016
  E- 21 [ E977 ] ( Abnormality in common rail fuel pressure sensor system) is displayed ....1017
  E- 22 [ E979 ] ( Common rail fuel high pressure abnormality 1) is displayed [ E97A ] ( Common rail fuel high pressure abnormality 2) is displayed ....1018
  E- 23 [ E97b ] ( Fuel supply pump non- force feed 1) is displayed [ E97C ] ( Fuel supply pump non- force feed 2) is displayed ....1019
  E- 24 [ E97d ] ( Abnormality in common rail fuel pressure) is displayed ....1021
  E- 25 [ E980 ] ( Defective engine controller) is displayed ....1021
  E- 26 [ E981 ] ( Disconnection in No. 1 fuel injector system) is displayed ....1022
  E- 27 [ E982 ] ( Disconnection in No. 2 fuel injector system) is displayed ....1023
  E- 28 [ E983 ] ( Disconnection in No. 3 fuel injector system) is displayed ....1024
  E- 29 [ E984 ] ( Disconnection in No. 4 fuel injector system) is displayed ....1025
  E- 30 [ E985 ] ( Disconnection in No. 5 fuel injector system) is displayed ....1026
  E- 31 [ E986 ] ( Disconnection in No. 6 fuel injector system) is displayed ....1027
  E- 32 [ E98A ] ( Short circuit in No. 1, No. 2, No. 3 fuel injector system) is displayed ....1028
  E- 33 [ E98b ] ( Short circuit in No. 3, No. 4, No. 5 fuel injector system) is displayed ....1032
  TROUBLESHOOTING OF PUMP CONTROLLER SYSTEM ( C MODE) ....1036
    POINTS TO REMEMBER WHEN TROUBLESHOOTING CONTROLLER SYSTEM ....1037
    ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE ....1039
    JUDGEMENT TABLE FOR PUMP CONTROLLER AND HYDRAULIC RELATED PARTS ....1047
  POINTS TO REMEMBER WHEN TROUBLESHOOTING CONTROLLER SYSTEM ....1037
  ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE ....1039
  JUDGEMENT TABLE FOR PUMP CONTROLLER AND HYDRAULIC RELATED PARTS ....1047
  C- 1 Abnormality in controller power source system ( controller LED is OFF) ....1051
    C- 1 Related electrical circuit diagram ....1051
    TROUBLESHOOTING C- 2 ....1052
  C- 2 [ E232 ] Short circuit in pump TVC solenoid system is displayed ....1052
    TROUBLESHOOTING C- 2 C- 2 Related electrical circuit diagram TROUBLESHOOTING C- 3 ....1054
  C- 3 [ E233 ] Disconnection in pump TVC solenoid system is displayed ....1054
    TROUBLESHOOTING C- 3 C- 3 Related electrical circuit diagram TROUBLESHOOTING C- 4 ....1056
  C- 4 [ E203 ] Short circuit in swing holding brake solenoid system is displayed ....1056
    TROUBLESHOOTING C- 4 C- 4 Related electrical circuit diagram TROUBLESHOOTING C- 5 ....1058
  C- 5 [ E213 ] Disconnection in swing holding brake solenoid system is displayed ....1058
    TROUBLESHOOTING C- 5 C- 5 Related electrical circuit diagram TROUBLESHOOTING C- 6 ....1060
  C- 6 [ E201 ] Short circuit in CO cancel solenoid system is displayed ....1060
    C- 6 Related electrical circuit diagram ....1060
    TROUBLESHOOTING C- 7 ....1061
  C- 7 [ E211 ] Disconnection in CO cancel solenoid system is displayed ....1061
    C- 7 Related electrical circuit diagram ....1061
    TROUBLESHOOTING C- 8 ....1062
  C- 8 [ E202 ] Short circuit in straight- travel solenoid system is displayed ....1062
    C- 8 Related electrical circuit diagram ....1062
    TROUBLESHOOTING C- 9 ....1063
  C- 9 [ E212 ] Disconnection in straight- travel solenoid system is displayed ....1063
    C- 9 Related electrical circuit diagram ....1063
    TROUBLESHOOTING C- 10 ....1064
  C- 10 [ E204 ] Short circuit in 2- stage relief solenoid system is displayed ....1064
    C- 10 Related electrical circuit diagram ....1064
    TROUBLESHOOTING C- 11 ....1065
  C- 11 [ E214 ] Disconnection in 2- stage relief solenoid system is displayed ....1065
    C- 11 Related electrical circuit diagram ....1065
    TROUBLESHOOTING C- 12 ....1066
  C- 12 [ E205 ] Short circuit in swing priority selector solenoid system is displayed ....1066
    C- 12 Related electrical circuit diagram ....1066
    TROUBLESHOOTING C- 13 ....1067
  C- 13 [ E211 ] Disconnection in swing priority selector solenoid system is displayed ....1067
    C- 13 Related electrical circuit diagram ....1067
    TROUBLESHOOTING C- 14 ....1068
  C- 14 [ E206 ] Short circuit in travel speed solenoid system is displayed ....1068
    C- 14 Related electrical circuit diagram ....1068
    TROUBLESHOOTING C- 15 ....1069
  C- 15 [ E216 ] Disconnection in travel speed solenoid system is displayed ....1069
    C- 15 Related electric circuit diagram ....1069
    TROUBLESHOOTING C- 16 ....1070
  C- 16 [ E217 ] Model selection input error is displayed ....1070
    TROUBLESHOOTING C- 16 C- 16 Related electrical circuit diagram TROUBLESHOOTING C- 17 ....1072
  C- 17 [ E227 ] Abnormality in engine speed sensor system is displayed ....1072
    C- 17 Related electrical circuit diagram ....1072
    TROUBLESHOOTING C- 18 ....1073
  C- 18 Abnormality in machine push- up solenoid system ( no service code displayed) ....1073
    a) Even when machine push- up switch is set to low pressure, solenoid is not switched ON ....1073
    C- 19 Related electrical circuit diagram ....1073
    TROUBLESHOOTING C- 18 b) Even when machine push- up switch is set to high pressure, solenoid is not switched OFF ....1074
    C- 18 Related electrical circuit diagram ....1074
    TROUBLESHOOTING C- 19 ....1075
  C- 19 Abnormality in shockless boom solenoid system ( no service code displayed) ....1075
    a) Shockless mode cannot be canceled ( solenoid is not switched ON) ....1075
    TROUBLESHOOTING C- 19 C- 19 Related electrical circuit diagram ....1076
    TROUBLESHOOTING C- 19 ....1077
    b) Shockless mode is not actuated ....1077
    C- 19 Related electric circuit diagram TROUBLESHOOTING C- 20 C- 20 Related electrical circuit diagram ....1078
  C- 20 [ E207 ] Short circuit in flash light relay drive system is displayed ....1078
    TROUBLESHOOTING C- 21 ....1079
  C- 21 Flash light relay does not work ....1079
    C- 21 Related electrical circuit diagram ....1079
    TROUBLESHOOTING C- 22 ....1080
  C- 22 [ E231 ] Abnormality ( short circuit) in power source holding relay output system for step light is displayed ....1080
    C- 22 Related electrical circuit diagram ....1080
    TROUBLESHOOTING C- 23 ....1081
  C- 23 Step light switch does not work ....1081
    C- 23 Related electrical circuit diagram ....1081
    TROUBLESHOOTING C- 24 ....1082
  C- 24 [ E302 ] Short circuit in step light relay drive system is displayed ....1082
    C- 24 Related electrical circuit diagram ....1082
    TROUBLESHOOTING C- 25 ....1083
  C- 25 [ 303 ] Disconnection in step light relay drive system is displayed ....1083
    C- 25 Related electrical circuit diagram ....1083
    TROUBLESHOOTING C- 26 ....1084
  C- 26 Step light does not light up ....1084
    C- 26 Related electrical circuit diagram ....1084
    TROUBLESHOOTING C- 27 ....1085
  C- 27 [ E228 ] Abnormality in auto- deceleration output system is displayed ....1085
    C- 27 Related electrical circuit diagram ....1085
  TROUBLESHOOTING OF ENGINE THROTTLE & PUMP CONTROLLER ( INPUT SIGNAL SYSTEM) ( F MODE) ....1086
  F- 1 [ Bit pattern 20- ( 1) ] Swing oil pressure switch does not light up ....1089
    TROUBLESHOOTING F- 2 F- 2 Related electrical circuit diagram ....1090
  F- 2 [ Bit pattern 20- ( 2) ] R. H. travel oil pressure switch does not light up ....1090
    F- 3 Related electrical circuit diagram TROUBLESHOOTING F- 3 ....1091
  F- 3 [ Bit pattern 20- ( 3) ] Boom LOWER oil pressure switch does not light up ....1091
    TROUBLESHOOTING F- 4 F- 4 Related electrical circuit diagram ....1092
  F- 4 [ Bit pattern 20- ( 4) ] Boom RAISE oil pressure switch does not light up ....1092
    F- 5 Related electrical circuit diagram TROUBLESHOOTING F- 5 ....1093
  F- 5 [ Bit pattern 20- ( 5) ] Arm IN oil pressure switch does not light up ....1093
    TROUBLESHOOTING F- 6 F- 6 Related electrical circuit diagram ....1094
  F- 6 [ Bit pattern 20- ( 6) ] Arm OUT oil pressure switch does not light up ....1094
    F- 7 Related electrical circuit diagram TROUBLESHOOTING F- 7 ....1095
  F- 7 [ Bit pattern 21- ( 1) ] Bucket CURL oil pressure switch does not light up ....1095
    TROUBLESHOOTING F- 8 F- 8 Related electrical circuit diagram ....1096
  F- 8 [ Bit pattern 21- ( 2) ] Bucket DUMP oil pressure switch does not light up ....1096
    F- 9 Related electrical circuit diagram TROUBLESHOOTING F- 9 ....1097
  F- 9 [ Bit pattern 20- ( 5) ] L. H. travel oil pressure switch does not light up ....1097
    TROUBLESHOOTING F- 10 F- 10 Related electrical circuit diagram ....1098
  F- 10 [ Bit pattern 21- ( 4) ] Service oil pressure switch does not light up ....1098
    F- 11 Related electrical circuit diagram TROUBLESHOOTING F- 11 ....1099
  F- 11 [ Bit pattern 21- ( 3) ] Swing lock switch does not light up ....1099
    TROUBLESHOOTING F- 12 F- 12 Related electrical circuit diagram ....1100
  F- 12 [ Bit pattern 24- ( 1) ] When step light switch is ON, it does not go out ....1100
    F- 13 Related electrical circuit diagram TROUBLESHOOTING F- 13 ....1101
  F- 13 [ Bit pattern 24- ( 2) ] When horn switch is ON, it does not go out ....1101
  TABLE OF FAILURE MODES AND CAUSES ....1103
    TROUBLESHOOTING TABLE OF FAILURE MODES AND CAUSES ....1104
  BEFORE CARRYING OUT TROUBLESHOOTING OF HYDRAULIC SYSTEM ( H MODE) ....1105
    1. Actuation and combination of main pumps ....1105
    2. Judgement procedure ....1105
    BEFORE CARRYING OUT TROUBLESHOOTING TROUBLESHOOTING OF HYDRAULIC SYSTEM ( H MODE) ....1105
    BEFORE CARRYING OUT TROUBLESHOOTING TROUBLESHOOTING OF HYDRAULIC SYSTEM ( H MODE) TROUBLESHOOTING BEFORE CARRYING OUT TROUBLESHOOTING OF HYDRAULIC SYSTEM ( H MODE)   Hydraulic circuit diagram after interchanging hoses   Method of interchanging hoses TROUBLESHOOTING ....1108
    TROUBLESHOOTING H- 2 ....1109
    TROUBLESHOOTING H- 2 ....1110
    TROUBLESHOOTING H- 3 ....1111
    H- 3 Related circuit diagram ....1111
    TROUBLESHOOTING H- 4, H- 5 ....1112
    TROUBLESHOOTING H- 6 ....1113
    a) If work equipment speed ( boom, arm, bucket) is slow or lacks power in normal mode ....1113
    TROUBLESHOOTING H- 6 b) If boom RAISE speed is slow or lacks power in heavy lift mode ....1114
    c) If boom LOWER speed is slow or lacks power when machine push- up is ON TROUBLESHOOTING H- 7, H- 8 ....1115
    TROUBLESHOOTING H- 9, H- 10, H- 11 ....1116
    TROUBLESHOOTING H- 12 ....1117
    TROUBLESHOOTING H- 13 ....1118
    a) Direction of deviation is same in FORWARD and REVERSE ....1118
    TROUBLESHOOTING H- 13 b) Direction of deviation is different in FORWARD and REVERSE ....1119
    TROUBLESHOOTING H- 14 ....1120
    TROUBLESHOOTING H- 14, H- 15 ....1121
    TROUBLESHOOTING H- 16, H- 17 ....1122
    TROUBLESHOOTING H- 18 ....1123
    TROUBLESHOOTING H- 18 ....1124
    TROUBLESHOOTING H- 19 ....1125
    TROUBLESHOOTING H- 19, H- 20 ....1126
    TROUBLESHOOTING H- 21 ....1127
    TROUBLESHOOTING H- 22 ....1128
    TROUBLESHOOTING H- 23 ....1129
    TROUBLESHOOTING H- 24 ....1130
    TROUBLESHOOTING H- 25 ....1131
    a) When swing holding brake is released ....1131
  ACTION TAKEN BY MONITOR PANEL WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE ....1133
    M- 1 [ E101 ] ( Abnormality in error data) or [ E102 ] ( Abnormality in clock data) is displayed ....1137
    M- 2 [ E103 ] ( Short circuit in buzzer output system) is displayed ....1138
    M- 3 [ E104 ] ( Air cleaner clogging detection) is displayed ....1139
    M- 4 [ E108 ] ( Engine water temperature 105 ....1139
    C) is displayed ....1139
    M- 5 When starting switch is turned ON, none of lamps on monitor panel light up for 3 seconds ....1140
    M- 6 When starting switch is turned ON, monitor panel lamps all stay lighted up and do not go out ....1142
    M- 7 When starting switch is turned ON, items lighted up on monitor panel are different from actual machine ....1142
    M- 8 When starting switch is turned ON ( engine stopped) , basic check items flash ....1143
    M- 9 Preheating is not being used but preheating display motor lamp lights up ....1146
    M- 10 When engine is started, basic check items flash ....1147
    M- 11 When starting switch is turned ON ( engine stopped) , CAUTION items and EMERGENCY STOP items flash ....1148
    M- 12 When engine is started, CAUTION items and EMERGENCY STOP items flash ....1149
    M- 13 Operation of alarm buzzer is not normal ....1153
    M- 14 Night lighting on monitor panel does not light up ....1155
    M- 15 Engine water temperature display is not normal ....1156
    M- 16 Fuel level gauge display is not normal ....1157
    M- 17 Swing lock switch is turned ON but swing lock monitor lamp does not light up ....1159
    M- 18 When swing brake release switch is set to RELEASE ( EMERGENCY) , swing lock monitor lamp does not flash ....1160
    M- 19 Service meter does not give normal display ....1161
    M- 20 Defective fuel level sensor system ....1162
    M- 21 Defective engine oil level sensor system ....1163
    M- 22 Defective coolant level sensor system ....1164
    M- 23 Defective hydraulic oil level sensor system ....1165
    M- 24 Wiper is not actuated when wiper switch is operated or wiper is actuated when wiper switch is not operated ....1166
    M- 25 Window washer is not actuated when wiper switch is operated or window washer is actuated when switch is not operated ....1171
    M- 26 Electric grease gun does not work ( machines equipped with electric grease gun) ....1174
  METHOD OF USING MANUAL ....1177
    1. When removing or installing unit assemblies ....1177
    2. ....1177
    3. Listing of special tools ....1177
    A1 ....1177
    DISASSEMBLY AND ASSEMBLY METHOD OF USING MANUAL ....1178
    6. Tightening torque of split flange bolts ....1178
    5. Tightening torque of hose nuts ....1178
    4. Standard tightening torques of bolts and nuts DISASSEMBLY AND ASSEMBLY METHOD OF USING MANUAL ....1179
    7. Tightening torque of O- ring boss connector ....1179
    8. Tightening torque of O- ring boss connector ....1179
    DISASSEMBLY AND ASSEMBLY PRECAUTIONS WHEN CARRYING OUT OPERATION ....1180
  PRECAUTIONS WHEN CARRYING OUT OPERATION ....1180
    1. Precautions when carrying out removal work ....1180
  SPECIAL TOOL LIST ....1182
  SKETCHES OF SPECIAL TOOLS ....1189
  REMOVAL OF AFTERCOOLER CORE ....1191
  INSTALLATION OF AFTERCOOLER CORE ....1191
  REMOVAL OF FAN GUARD, RADIATOR AND HYDRAULIC OIL COOLER ASSEMBLY ....1192
  INSTALLATION OF FAN GUARD, RADIATOR AND HYDRAULIC OIL COOLER ASSEMBLY ....1194
      Water Filling ....1194
      Filling ( Hydraulic Tank) with Oil ....1194
      Filling of Air Conditioner Gas ....1194
      Alignment of Engine Pulley and Fan Pulley ....1194
      Filling ( Fuel Tank) with Diesel Fuel ....1194
  REMOVAL OF FUEL COOLER AND AIR CONDITIONER CONDENSER ASSEMBLY ....1195
  INSTALLATION OF FUEL COOLER AND AIR CONDITIONER CONDENSER ASSEMBLY ....1195
  REMOVAL OF FUEL TANK ASSEMBLY ....1196
  INSTALLATION OF FUEL TANK ASSEMBLY ....1197
  REMOVAL OF ENGINE, PTO AND HYDRAULIC PUMP ASSEMBLY ....1198
  INSTALLATION OF ENGINE, PTO AND HYDRAULIC PUMP ASSEMBLY ....1202
      Water Filling ....1202
      Air Bleeding ....1202
  REMOVAL OF PTO ASSEMBLY ....1203
  INSTALLATION OF PTO ASSEMBLY ....1204
  DISASSEMBLY OF PTO ASSEMBLY ....1205
    1. Cover ....1205
    2. Gear assembly ....1205
    3. Removal of bearing ....1205
  ASSEMBLY OF PTO ASSEMBLY ....1206
    1. Bearings ....1206
    2. Outer race at case end ....1206
    3. Nipples, plug ....1206
    4. Gears ....1206
  DISASSEMBLY OF FINAL DRIVE ASSEMBLY ....1209
  ASSEMBLY OF FINAL DRIVE ASSEMBLY ....1214
  REMOVAL OF REVOLVING FRAME ASSEMBLY ....1222
  INSTALLATION OF REVOLVING FRAME ASSEMBLY ....1223
  REMOVAL OF SWING MACHINERY ASSEMBLY ....1224
  INSTALLATION OF SWING MACHINERY ASSEMBLY ....1224
  DISASSEMBLY OF SWING MACHINERY ASSEMBLY ....1225
  ASSEMBLY OF SWING MACHINERY ASSEMBLY ....1229
  REMOVAL OF SWING CIRCLE ASSEMBLY ....1234
  INSTALLATION OF SWING CIRCLE ASSEMBLY ....1234
  REMOVAL OF TRACK SHOE ASSEMBLY ....1235
  INSTALLATION OF TRACK SHOE ASSEMBLY ....1236
  DISASSEMBLY OF ONE LINK IN FIELD ....1237
  FIELD ASSEMBLY OF ONE LINK ....1239
  REMOVAL OF IDLER ASSEMBLY ....1241
  INSTALLATION OF IDLER ASSEMBLY ....1241
  DISASSEMBLY OF IDLER ASSEMBLY ....1242
  ASSEMBLY OF IDLER ASSEMBLY ....1244
  DISASSEMBLY OF IDLER ADJUSTMENT CYLINDER ASSEMBLY ....1246
  ASSEMBLY OF IDLER ADJUSTMENT CYLINDER ASSEMBLY ....1246
  REMOVAL OF RECOIL SPRING ASSEMBLY ....1247
  INSTALLATION OF RECOIL SPRING ASSEMBLY ....1247
  DISASSEMBLY OF RECOIL SPRING ASSEMBLY ....1249
  ASSEMBLY OF RECOIL SPRING ASSEMBLY ....1250
  REMOVAL OF CARRIER ROLLER ASSEMBLY ....1251
  INSTALLATION OF CARRIER ROLLER ASSEMBLY ....1251
  DISASSEMBLY OF CARRIER ROLLER ASSEMBLY ....1252
  ASSEMBLY OF CARRIER ROLLER ASSEMBLY ....1253
  REMOVAL OF TRACK ROLLER ASSEMBLY ....1254
  INSTALLATION OF TRACK ROLLER ASSEMBLY ....1254
  DISASSEMBLY OF TRACK ROLLER ASSEMBLY ....1255
  ASSEMBLY OF TRACK ROLLER ASSEMBLY ....1256
  REMOVAL OF HYDRAULIC TANK ASSEMBLY ....1258
  INSTALLATION OF HYDRAULIC TANK ASSEMBLY ....1260
  REMOVAL OF MAIN PUMP ( NO. 1 PUMP) ASSEMBLY ....1261
  INSTALLATION OF MAIN PUMP ( NO. 1 PUMP) ASSEMBLY ....1262
  REMOVAL OF MAIN PUMP ( NO. 2 PUMP) ....1263
  INSTALLATION OF MAIN PUMP ( NO. 2 PUMP) ASSEMBLY ....1264
  REMOVAL OF MAIN PUMP INPUT SHAFT OIL SEAL ....1265
  INSTALLATION OF MAIN PUMP INPUT SHAFT OIL SEAL ....1265
  REMOVAL OF CONTROL   PTO LUBRICATION PUMP ASSEMBLY ....1266
  INSTALLATION OF CONTROL   PTO LUBRICATION PUMP ASSEMBLY ....1266
  DISASSEMBLY OF MAIN RELIEF VALVE ASSEMBLY ....1267
  ASSEMBLY OF MAIN RELIEF VALVE ASSEMBLY ....1267
  REMOVAL OF CONTROL VALVE ASSEMBLY ....1268
  INSTALLATION OF CONTROL VALVE ASSEMBLY ....1270
  DISASSEMBLY OF CONTROL VALVE ASSEMBLY ( WORK EQUIPMENT) ....1272
  ASSEMBLY OF CONTROL VALVE ASSEMBLY ( WORK EQUIPMENT) ....1274
  REMOVAL OF SOLENOID VALVE ASSEMBLY ....1276
  INSTALLATION OF SOLENOID VALVE ASSEMBLY ....1277
  REMOVAL OF BOOM DAMPING VALVE ASSEMBLY ....1278
  INSTALLATION OF BOOM DAMPING VALVE ASSEMBLY ....1278
  REMOVAL OF SWING MOTOR ASSEMBLY ....1279
  INSTALLATION OF SWING MOTOR ASSEMBLY ....1279
  REMOVAL OF CENTER SWIVEL JOINT ....1280
  INSTALLATION OF CENTER SWIVEL JOINT ASSEMBLY ....1280
  DISASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY ....1281
  ASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY ....1281
  REMOVAL OF TRAVEL MOTOR ASSEMBLY ....1282
  INSTALLATION OF TRAVEL MOTOR ASSEMBLY ....1282
  DISASSEMBLY OF WORK EQUIPMENT PPC VALVE ASSEMBLY ....1283
  ASSEMBLY OF WORK EQUIPMENT PPC VALVE ASSEMBLY ....1284
  DISASSEMBLY OF TRAVEL PPC VALVE ASSEMBLY ....1285
  ASSEMBLY OF TRAVEL PPC VALVE ASSEMBLY ....1286
  REMOVAL OF BUCKET CYLINDER ASSEMBLY ....1287
  INSTALLATION OF BUCKET CYLINDER ASSEMBLY ....1289
  REMOVAL OF ARM CYLINDER ASSEMBLY ....1291
  INSTALLATION OF ARM CYLINDER ASSEMBLY ....1293
  REMOVAL OF BOOM CYLINDER ASSEMBLY ....1295
  INSTALLATION OF BOOM CYLINDER ASSEMBLY ....1297
  REMOVAL OF BOTTOM DUMP CYLINDER ASSEMBLY ....1299
  INSTALLATION OF BOTTOM DUMP CYLINDER ASSEMBLY ....1300
  DISASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY ....1301
  ASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY ....1303
  REMOVAL OF BUCKET ASSEMBLY ....1306
  INSTALLATION OF BUCKET ASSEMBLY ....1308
  REMOVAL OF ARM ASSEMBLY ....1310
  INSTALLATION OF ARM ASSEMBLY ....1312
  REMOVAL OF BOOM ASSEMBLY ....1314
  INSTALLATION OF BOOM ASSEMBLY ....1316
  REMOVAL OF WORK EQUIPMENT ....1318
  INSTALLATION OF WORK EQUIPMENT ASSEMBLY ....1320
  REMOVAL OF OPERATOR   S CAB ASSEMBLY ....1322
  INSTALLATION OF OPERATOR   S CAB ASSEMBLY ....1323
  REMOVAL OF COUNTERWEIGHT ASSEMBLY ....1324
  INSTALLATION OF COUNTERWEIGHT ASSEMBLY ....1324
UEBM002400 - Hydraulic Excavator PC750SE-7K, PC750LC-7K Shop Manual....1331
  Foreword.pdf....0
    SAFETY....1333
      SAFETY NOTICE....1333
        IMPORTANT SAFETY NOTICE....1333
        GENERAL PRECAUTIONS....1333
        PREPARATIONS FOR WORK....1333
        PRECAUTIONS DURING WORK....1334
    FOREWORD....1335
      GENERAL....1335
        STRUCTURE AND FUNCTION....1335
        TESTING AND ADJUSTING....1335
        DISASSEMBLY AND ASSEMBLY....1335
        MAINTENANCE STANDARD....1335
        OTHERS....1335
      HOW TO READ THE SHOP MANUAL....1336
        VOLUMES....1336
        DISTRIBUTION AND UPDATING....1336
        FILING METHOD....1336
        REVISED EDITION MARK....1336
        REVISIONS....1336
        SYMBOLS....1336
      HOISTING INSTRUCTIONS....1337
        HOISTING....1337
        WIRE ROPES....1337
      METHOD OF DISASSEMBLING, CONNECTING PUSH-PULL TYPE COUPLER....1338
        Disconnection....1338
        Connection....1338
      COATING MATERIALS....1340
      STANDARD TIGHTENING TORQUE....1342
        STANDARD TIGHTENING TORQUE TABLE (WHEN USING TORQUE WRENCH)....1342
        TABLE OF TIGHTENING TORQUES FOR FLARED NUTS....1342
        TABLE OF TIGHTENING TORQUES FOR SPLIT FLANGE BOLTS....1343
        TABLE OF TIGHTENING TORQUES FOR O-RING BOSS PIPING JOINTS....1343
        TABLE OF TIGHTENING TORQUES FOR O-RING BOSS PLUGS....1343
        TIGHTENING TORQUE FOR 102 ENGINE SERIES (BOLT AND NUTS)....1344
        TIGHTENING TORQUE FOR 102 ENGINE SERIES (EYE JOINTS)....1344
        TIGHTENING TORQUE FOR 102 ENGINE SERIES (TAPERED SCREWS)....1344
      ELECTRIC WIRE CODE....1345
        CLASSIFICATION BY THICKNESS....1345
        CLASSIFICATION BY COLOR AND CODE....1345
      CONVERSION TABLE....1346
        METHOD OF USING THE CONVERSION TABLE....1346
        EXAMPLE....1346
        Millimeters to inches....1346
        Millimeters to Inches....1347
        Kilogram to Pound....1347
        Liter to U.S. Gallon....1348
        Liter to U.K. Gallon....1348
        kgm to ft. lb....1349
        kg/cm2 to lb/in2....1350
        Temperature....1351
      UNITS....1352
        Example:....1352
  01.pdf....0
    01 GENERAL....1353
      SPECIFICATION DRAWINGS....1354
      SPECIFICATIONS....1356
      WEIGHT TABLE....1361
      FUEL, COOLANT AND LUBRICANTS....1363
  10.pdf....0
    10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD....1365
      PTO....1366
      PTO LUBRICATION SYSTEM....1367
      POWER TRAIN....1368
      SWING MACHINERY....1370
      SWING CIRCLE....1372
      FINAL DRIVE....1374
      TRACK FRAME AND RECOIL SPRING....1376
      IDLER....1378
      CARRIER ROLLER....1380
      TRACK ROLLER....1381
      TRACK SHOE....1382
      MOTOR GREASE PUMP....1387
      HYDRAULIC TANK....1388
      HYDRAULIC PUMP....1390
      RETURN OIL FILTER....1420
      LINE OIL FILTER....1421
      PILOT OIL FILTER....1421
      DRAIN OIL FILTER....1422
      L.H. 5-SPOOL CONTROL VALVE....1424
      R.H. 4-SPOOL CONTROL VALVE....1430
      STRAIGHT-TRAVEL VALVE....1436
      SWING MOTOR....1439
      CENTER SWIVEL JOINT....1444
      TRAVEL MOTOR....1445
      PPC CONTROL RELIEF VALVE....1455
      PPC ACCUMULATOR....1456
      VALVE CONTROL....1457
      WORK EQUIPMENT, SWING PPC VALVE....1458
      TRAVEL PPC VALVE....1464
      SOLENOID VALVE....1468
      HYDRAULIC CYLINDER....1474
      WORK EQUIPMENT....1476
      DIMENSIONS OF WORK EQUIPMENT....1478
      AIR CONDITIONER....1480
      ENGINE CONTROL....1481
      MACHINE CONTROL SYSTEM....1487
      MONITOR SYSTEM....1516
      SENSORS....1531
  20.pdf....0
    20 TESTING AND ADJUSTING....1535
      STANDARD VALUE TABLE FOR ENGINE....1534
      STANDARD VALUE TABLE FOR CHASSIS....1537
  20_101.pdf....0
    TESTING AND ADJUSTING....1547
      TOOLS FOR TESTING, ADJUSTING AND TROUBLESHOOTING....1366
      MEASURING ENGINE SPEED....1550
      MEASURING INTAKE AIR PRESSURE (BOOST PRESSURE)....1551
      MEASUREMENT OF EXHAUST GAS TEMPERATURE....1552
      MEASUREMENT OF EXHAUST GAS COLOR....1553
      ADJUSTING VALVE CLEARANCE....1554
      MEASURING COMPRESSION PRESSURE....1534
      MEASURING BLOW-BY PRESSURE....1557
      MEASURING ENGINE OIL PRESSURE....1558
      HANDLING OF FUEL SYSTEM EQUIPMENT....1559
      REMAINING PRESSURE RELIEF FROM FUEL SYSTEM EQUIPMENT....1559
      MEASUREMENT OF FUEL PRESSURE....1560
      AIR BLEEDING FROM FUEL CIRCUIT....1561
      INSPECTION OF LEAKAGE FROM FUEL SYSTEM....1563
      ADJUSTING ENGINE SPEED SENSOR....1544
      TESTING AND ADJUSTING FAN BELT TENSION....1565
      TESTING AND ADJUSTING ALTERNATOR BELT TENSION....1566
      TESTING AND ADJUSTING AIR CONDITIONER COMPRESSOR BELT....1567
      INSPECTION OF SWING CIRCLE BEARING CLEARANCE....1568
      TESTING AND ADJUSTING TRACK SHOE TENSION....1569
      TESTING AND ADJUSTING WORK EQUIPMENT, SWING, AND TRAVEL CIRCUIT OIL PRESSURES....1570
      TESTING AND ADJUSTING CONTROL CIRCUIT OIL PRESSURE....1575
      TESTING AND ADJUSTING PISTON PUMP CONTROL PRESSURE....1543
      INSPECTION OF SERVO PISTON STROKE....1582
      MEASUREMENT OF PPC VALVE OUTPUT PRESSURE....1583
      MEASURING OUTLET PRESSURES OF SOLENOID VALVE, SWING PPC SHUTTLE VALVE, AND SWING PRIORITY SELECTO.....1586
      ADJUSTING WORK EQUIPMENT, SWING PPC VALVE....1591
      TESTING AND ADJUSTING TRAVEL DEVIATION....1592
      INSPECTION OF LOCATIONS OF HYDRAULIC DRIFT OF WORK EQUIPMENT....1594
      MEASURING OIL LEAKAGE....1595
      RELEASE OF RESIDUAL PRESSURE FROM HYDRAULIC CIRCUIT....1599
      BLEEDING AIR FROM EACH PART....1600
      INSPECTION PROCEDURES FOR DIODE....1603
      SPECIAL FUNCTION OF MONITOR PANEL....1604
      HANDLING ENGINE CONTROLLER HIGH VOLTAGE CIRCUIT....1631
      PREPARATION WORK....1632
  20_101A.pdf....0
    Pm-CLINIC SERVICE....1634
      Positions to install measuring devices (Related to engine and PTO)....1548
      Positions to install measuring devices (Related to relief pressure and OLSS oil pressure)....1637
    Pm-CLINIC SERVICE PC750 (LC, SE)....1640
      Arm....1640
      1. Arm cylinder bracket....1640
      2. Arm foot....1640
      3. Arm top boss....1640
      Boom....1640
      4. Boom top bracket....1640
      5. Boom cylinder bracket....1640
      6. Arm cylinder bracket....1640
      7. Boom lower plate....1640
      8. Boom foot....1640
      Revolving frame....1640
      9. Boom bracket....1640
      Track frame....1640
      10. Circle bracket....1640
      11. Track frame mounting section....1640
      Visual check of welded structures (For PC750SE-7)....1641
        Arm....1641
        1. Arm cylinder bracket....1641
        2. Arm foot....1641
        3. Arm top boss....1641
        Boom....1641
        4. Boom top bracket....1641
        5. Boom cylinder bracket....1641
        6. Arm cylinder bracket....1641
        7. Boom lower plate....1641
        8. Boom foot....1641
        Revolving frame....1641
        9. Boom bracket....1641
        Track frame....1641
        10. Circle bracket....1641
        11. Track frame mounting section....1641
    UNDERCARRIAGE INSPECTION....1642
      (Program form No.: ***************)....1642
  20_201.pdf....0
    TROUBLESHOOTING....1547
      POINTS TO REMEMBER WHEN TROUBLESHOOTING....1644
      SEQUENCE OF EVENTS IN TROUBLESHOOTING....1640
      POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE....1646
      CHECKS BEFORE TROUBLESHOOTING....1654
      CLASSIFICATION AND STEPS FOR TROUBLESHOOTING....1655
        Classification of troubleshooting....1611
        Steps for troubleshooting....1611
        Failure-looking Phenomenon and Troubleshooting No....1656
      CONNECTOR LOCATION CHART AND ELECTRICAL CIRCUIT DIAGRAM BY SYSTEM....1659
        Connector table....1659
        Connector Location Stereogram....1664
        Monitor Panel System Circuit Diagram (M Circuit)....1670
        Engine Control System Circuit Diagram (E Ciruit)....1672
        Pump Controller System Circuit Diagram (P Circuit)....1674
      CONNECTION TABLE FOR CONNECTOR PIN NUMBERS....1676
      T-BRANCH BOX AND T-BRANCH TABLE....1698
  20_301.pdf....0
    TROUBLESHOOTING WHEN ERROR CODE "ELECTRICAL SYSTEM" AND FAILURE CODE "MECHANICAL SYSTEM" ARE DISP.....1701
      BEFORE CARRYING OUT TROUBLESHOOTING OF DISPLAYED CODE....1617
      INFORMATION CONTAINED IN TROUBLESHOOTING TABLE....1706
      Error Code in Electrical System E112 (Wiper Drive (For) S/C)....1708
      Error Code in Electrical System E113 (Wiper Drive (Rev) S/C)....1712
      Error Code in Electrical System E114 (Washer Drive S/C)....1714
      Error Code in Electrical System E115 (Wiper Working Abnormality)....1716
      Error Code in Electrical System E116 (Wiper Parking Abnormality)....1718
      Error Code in Electrical System E117 (Eng. Controller S-NET Comm Err.)....1722
      Error Code in Electrical System E118 (Pump Controller S-NET Comm Err.)....1724
      Error Code in Electrical System E128 (Monitor Comm. Abnormality)....1726
      Error Code in Electrical System E201 (CO Cancel Sol. S/C)....1728
      Error Code in Electrical System E202 (Travel Junction Sol. S/C)....1730
      Error Code in Electrical System E203 (Swing Brake Sol. S/C)....1732
      Error Code in Electrical System E204 (2-stage Relief Sol. S/C)....1734
      Error Code in Electrical System E205 (Swing Priority Sol. S/C)....1736
      Error Code in Electrical System E206 (Travel Speed Sol. S/C)....1738
      Error Code in Electrical System E207 (Flash Light Relay S/C)....1740
      Error Code in Electrical System E211 (CO Cancel Sol. Disc.)....1742
      Error Code in Electrical System E212 (Travel Junction Sol. Disc.)....1744
      Error Code in Electrical System E213 (Swing Brake Sol. Disc.)....1746
      Error Code in Electrical System E214 (2-stage Relief Sol. Disc.)....1748
      Error Code in Electrical System E215 (Swing Priority Sol. Disc.)....1750
      Error Code in Electrical System E216 (Travel Speed Sol. Disc.)....1752
      Error Code in Electrical System E217 (Model selection Abnormality)....1754
      Error Code in Electrical System E218 (S-Net Comm. Disc.)....1756
      Error Code in Electrical System E221 (Travel Alarm S/C)....1758
      Error Code in Electrical System E224 (F Pump P. Sensor Abnormality)....1760
      Error Code in Electrical System E225 (R Pump P. Sensor Abnormality)....1762
      Error Code in Electrical System E226 (Press. Sensor Power Abnormality)....1764
      Error Code in Electrical System E227 (Engine Speed Sensor Abnormality)....1766
      Error Code in Electrical System E232 (TVC Sol. S/C)....1768
      Error Code in Electrical System E233 (TVC Sol. Disc.)....1770
      Error Code in Electrical System E257 (Pump Comm. Abnormality)....1772
      Error Code in Electrical System E302 (Step Light Relay S/C)....1774
      Error Code in Electrical System E304 (Step Light Power Hold Relay S/C)....1776
      Error Code in Electrical System E315 (Battery Relay Drive S/C)....1778
      Error Code in Electrical System E91B (Engine Ne sensor problem)....1780
      Error Code in Electrical System E91C (Engine G sensor problem)....1781
      Error Code in Electrical System E920 (Engine type selection error)....1782
      Error Code in Electrical System E921 (Engine type mismatch)....1784
      Error Code in Electrical System E931 (Fuel dial sys. error)....1786
      Error Code in Electrical System E934 (Engine coolant sensor Hi error)....1788
      Error Code in Electrical System E936 (Engine oil press. sw. error)....1790
      Error Code in Electrical System E93C (Engine boost sensor error)....1792
      Error Code in Electrical System E93D (Engine fuel temp. sensor error)....1794
      Error Code in Electrical System E953 (Engine Comm. Abnormality)....1796
      Error Code in Electrical System E954 (Short engine starter sw.)....1798
      Error Code in Electrical System E955 (Engine S-NET error)....1800
      Error Code in Electrical System E956 (Engine power failure (1))....1802
      Error Code in Electrical System E957 (Engine power failure (2))....1804
      Error Code in Electrical System E95A (Engine Q-adj. sw. signal error)....1806
      Error Code in Electrical System E96A (Engine coolant sensor Lo error)....1808
      Error Code in Electrical System E970 (PCV1 over current)....1810
      Error Code in Electrical System E971 (PCV2 over current)....1812
      Error Code in Electrical System E974 (PCV1 line cut)....1814
      Error Code in Electrical System E975 (PCV2 line cut)....1816
      Error Code in Electrical System E977 (Rail press. sensor error)....1818
      Error Code in Electrical System E979 (Rail press. high)....1820
      Error Code in Electrical System E97A (Rail press. abnormal)....1820
      Error Code in Electrical System E97B (Rail press. low)....1821
      Error Code in Electrical System E97C (Rail press. too low)....1823
      Error Code in Electrical System E97D (Rail press. out of control)....1823
      Error Code in Electrical System E980 (Eng. Controller Abnormality)....1824
      Error Code in Electrical System E981 (Fuel Injector 1 Disc.)....1826
      Error Code in Electrical System E982 (Fuel Injector 2 Disc.)....1827
      Error Code in Electrical System E983 (Fuel Injector 3 Disc.)....1828
      Error Code in Electrical System E984 (Fuel Injector 4 Disc.)....1829
      Error Code in Electrical System E985 (Fuel Injector 5 Disc.)....1830
      Error Code in Electrical System E986 (Fuel Injector 6 Disc.)....1831
      Error Code in Electrical System E98A (Fuel Injector 1  3 S/C)....1832
      Error Code in Electrical System E98B (Fuel Injector 4  6 S/C)....1834
      Failure Code in Mechanical System A000N1 (Eng. Hi Out of Std)....1837
      Failure Code in Mechanical System AA10NX (Aircleaner Clogging)....1838
      Failure Code in Mechanical System AB00KE (Charge Voltage Low)....1840
      Failure Code in Mechanical System B@BAZG (Eng. Oil Press. Low)....1842
      Failure Code in Mechanical System B@BAZK (Eng. Oil Level Low)....1844
      Failure Code in Mechanical System B@BCNS (Eng. Water Overheat)....1845
      Failure Code in Mechanical System B@BCZK (Eng. Water Lvl Low)....1846
      Failure Code in Mechanical System B@HANS (Hydr. Oil Overheat)....1848
      Failure Code in Mechanical System DA80MA (Auto. Lub Abnormal.)....1850
  20_501.pdf....0
    TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)....1701
      BEFORE CARRYING OUT TROUBLESHOOTING (E-MODE)....1617
      INFORMATION CONTAINED IN TROUBLESHOOTING TABLE....1854
      E-1 Engine does not start (Engine does not rotate)....1708
      E-2 Preheater does not operate....1858
      E-3 Auto engine warm-up device does not work....1860
      E-4 Auto-decelerator does not operate....1861
      E-5 All work equipment, swing and travel do not move....1862
      E-6 Machine push-up function does not operate normally....1864
      E-7 Boom shockless function does not operate normally....1866
      E-8 Any item is not displayed on monitor panel....1868
      E-9 Part of display on monitor panel is missing....1869
      E-10 Monitor panel displays contents irrelevant to the model....1869
      E-11 Fuel level monitor red lamp lights up while engine is running....1870
      E-12 Engine water thermometer does not display normally....1872
      E-13 Hydraulic oil temperature gauge does not display correctly....1874
      E-14 Fuel gauge does not display correctly....1875
      E-15 Swing lock monitor does not display correctly....1876
      E-16 When monitor switch is operated, nothing is displayed....1878
      E-17 Windshield wiper and window washer do not work....1880
      E-18 Alarming buzzer cannot be cancelled....1888
      E-19 "Boom RAISE" is not correctly displayed in monitor function....1889
      E-20 "Boom LOWER" is not correctly displayed in monitor function....1890
      E-21 "Arm IN" is not correctly displayed in monitor function....1891
      E-22 "Arm OUT" is not correctly displayed in monitor function....1892
      E-23 "Bucket CURL" is not correctly displayed in monitor function....1893
      E-24 "Bucket DUMP" is not correctly displayed in monitor function....1894
      E-25 "SWING" is not correctly displayed in monitor function....1896
      E-26 "Left travel" is not displayed normally in monitoring function....1898
      E-27 "Right travel" is not displayed normally in monitoring function....1900
      E-28 "Service" is not correctly displayed in monitor function....1902
      E-29 Air conditioner does not work....1904
      E-30 Step light does not light up or go off....1905
      E-31 Electric grease gun does not operate....1910
      E-32 Travel alarm does not sound or does not stop sounding....1912
  20_601.pdf....0
    TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE)....1701
      BEFORE TROUBLESHOOTING FOR HYDRAULIC AND MECHANICAL SYSTEMS (H MODE)....1916
      INFORMATION IN TROUBLESHOOTING TABLE....1921
      H-1 Speed or power of all work equipment, travel, and swing is low....1708
      H-2 Engine speed lowers remarkably or engine stalls....1924
      H-3 All work equipment, travel, and swing systems do not work....1860
      H-4 Abnormal sound is heard from around pump....1926
      H-5 Boom speed or power is low....1861
      H-6 Speed or power of arm is low....1929
      H-7 Speed or power of bucket is low....1930
      H-8 Boom does not move....1931
      H-9 Arm does not move....1931
      H-10 Bucket does not move....1931
      H-11 Hydraulic drift of work equipment is large....1932
      H-12 Time lag of work equipment is large....1934
      H-13 Heavy lift function does not operate or stop....1935
      H-14 Machine push-up function does not operate or stop....1935
      H-15 Boom shockless function cannot be turned ON or OFF....1935
      H-16 Machine deviates in one direction....1936
      H-17 Machine deviates largely at start....1938
      H-18 Machine deviates largely during compound operation....1939
      H-19 Travel speed or power is low....1939
      H-20 Machine does not travel (only one track)....1940
      H-21 Travel speed does not change....1941
      H-22 Upper structure does not swing....1942
      H-23 Swing speed or acceleration is low....1943
      H-24 Swing speed or acceleration is low during compound operation of swing and work equipment....1944
      H-25 Upper structure overruns excessively when it stops swinging....1946
      H-26 Large shock is made when upper structure stops swinging....1947
      H-27 Large abnormal sound is made when upper structure stops swinging....1948
      H-28 Hydraulic drift of swing is large....1949
  20_701.pdf....0
    TROUBLESHOOTING OF ENGINE (S MODE)....1701
      POINTS TO REMEMBER WHEN TROUBLESHOOTING....1952
      METHOD OF USING TROUBLESHOOTING CHARTS....1953
      S-1 Starting performance is poor (starting always takes time)....1956
      S-2 Engine does not start....1957
      S-3 Engine does not pick up smoothly (follow-up is poor)....1960
      S-4 Engine stops during operations....1961
      S-5 Engine does not rotate smoothly (hunting)....1962
      S-6 Engine lacks output (or lacks power)....1963
      S-7 Exhaust smoke is black (incomplete combustion)....1964
      S-8 Oil consumption is excessive (or exhaust smoke is blue)....1965
      S-9 Oil becomes contaminated quickly....1966
      S-10 Fuel consumption is excessive....1967
      S-11 Oil is in cooling water (or water spurts back, or water level goes down)....1968
      S-12 Oil pressure caution lamp lights up (drop in oil pressure)....1969
      S-13 Oil level rises (water, fuel in oil)....1970
      S-14 Water temperature becomes too high (overheating)....1971
      S-15 Abnormal noise is made....1972
      S-16 Vibration is excessive....1973
  30.pdf....0
    30 DISASSEMBLY AND ASSEMBLY....1975
      METHOD OF USING MANUAL....1977
      PRECAUTIONS WHEN CARRYING OUT OPERATION....1979
      SPECIAL TOOL LIST....1981
      REMOVAL AND INSTALLATION OF AFTERCOOLER CORE....1988
      REMOVAL AND INSTALLATION OF FAN GUARD, RADIATOR AND HYDRAULIC OIL COOLER ASSEMBLY....1989
      REMOVAL AND INSTALLATION OF FUEL COOLER AND AIR CONDITIONER CONDENSER ASSEMBLY....1992
      REMOVAL AND INSTALLATION OF FUEL TANK ASSEMBLY....1993
      REMOVAL AND INSTALLATION OF ENGINE, PTO AND HYDRAULIC PUMP ASSEMBLY....1994
      REMOVAL AND INSTALLATION OF PTO ASSEMBLY....1998
      DISASSEMBLY AND ASSEMBLY OF PTO ASSEMBLY....2000
      DISASSEMBLY AND ASSEMBLY OF FINAL DRIVE ASSEMBLY....2003
      REMOVAL AND INSTALLATION OF REVOLVING FRAME ASSEMBLY....2014
      REMOVAL AND INSTALLATION OF SWING MACHINERY ASSEMBLY....2015
      DISASSEMBLY AND ASSEMBLY OF SWING MACHINERY ASSEMBLY....2016
      REMOVAL AND INSTALLATION OF SWING CIRCLE ASSEMBLY....2023
      REMOVAL AND INSTALLATION OF TRACK SHOE ASSEMBLY....2024
      DISASSEMBLY AND ASSEMBLY OF ONE LINK IN FIELD....2026
      REMOVAL AND INSTALLATION OF IDLER ASSEMBLY....2030
      DISASSEMBLY AND ASSEMBLY OF IDLER ASSEMBLY....2031
      DISASSEMBLY AND ASSEMBLY OF IDLER ADJUSTMENT CYLINDER ASSEMBLY....2034
      REMOVAL AND INSTALLATION OF RECOIL SPRING ASSEMBLY....2035
      DISASSEMBLY AND ASSEMBLY OF RECOIL SPRING ASSEMBLY....2037
      REMOVAL AND INSTALLATION OF CARRIER ROLLER ASSEMBLY....2039
      DISASSEMBLY AND ASSEMBLY OF CARRIER ROLLER ASSEMBLY....2040
      REMOVAL AND INSTALLATION OF TRACK ROLLER ASSEMBLY....2043
      DISASSEMBLY AND ASSEMBLY OF TRACK ROLLER ASSEMBLY....2044
      REMOVAL AND INSTALLATION OF HYDRAULIC TANK ASSEMBLY....2047
      REMOVAL AND INSTALLATION OF MAIN PUMP (NO. 1 PUMP) ASSEMBLY....2049
      REMOVAL AND INSTALLATION OF MAIN PUMP (NO. 2 PUMP)....2051
      REMOVAL AND INSTALLATION OF MAIN PUMP INPUT SHAFT OIL SEAL....2053
      REMOVAL AND INSTALLATION OF CONTROL AND PTO LUBRICATION PUMP ASSEMBLY....2054
      DISASSEMBLY AND ASSEMBLY OF MAIN RELIEF VALVE ASSEMBLY....2055
      REMOVAL AND INSTALLATION OF CONTROL VALVE ASSEMBLY....2056
      DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY (WORK EQUIPMENT)....2059
      REMOVAL AND INSTALLATION OF SOLENOID VALVE ASSEMBLY....2062
      REMOVAL AND INSTALLATION OF BOOM DAMPING VALVE ASSEMBLY....2064
      REMOVAL AND INSTALLATION OF SWING MOTOR ASSEMBLY....2065
      REMOVAL AND INSTALLATION OF CENTER SWIVEL JOINT....2067
      DISASSEMBLY AND ASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY....2068
      REMOVAL AND INSTALLATION OF TRAVEL MOTOR ASSEMBLY....2070
      DISASSEMBLY AND ASSEMBLY OF WORK EQUIPMENT PPC VALVE ASSEMBLY....2071
      DISASSEMBLY AND ASSEMBLY OF TRAVEL PPC VALVE ASSEMBLY....2073
      REMOVAL AND INSTALLATION OF BUCKET CYLINDER ASSEMBLY....2075
      REMOVAL AND INSTALLATION OF BUCKET CYLINDER ASSEMBLY....2077
      REMOVAL AND INSTALLATION OF ARM CYLINDER ASSEMBLY....2079
      REMOVAL AND INSTALLATION OF ARM CYLINDER ASSEMBLY....2081
      REMOVAL AND INSTALLATION OF BOOM CYLINDER ASSEMBLY....2083
      REMOVAL AND INSTALLATION OF BOOM CYLINDER ASSEMBLY....2085
      REMOVAL AND INSTALLATION OF BOTTOM DUMP CYLINDER ASSEMBLY....2087
      DISASSEMBLY AND ASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY....2088
      REMOVAL AND INSTALLATION OF BUCKET ASSEMBLY....2094
      REMOVAL AND INSTALLATION OF BUCKET ASSEMBLY....2095
      REMOVAL AND INSTALLATION OF ARM ASSEMBLY....2096
      REMOVAL AND INSTALLATION OF ARM ASSEMBLY....2098
      REMOVAL AND INSTALLATION OF BOOM ASSEMBLY....2100
      REMOVAL AND INSTALLATION OF BOOM ASSEMBLY....2102
      REMOVAL AND INSTALLATION OF WORK EQUIPMENT....2104
      REMOVAL AND INSTALLATION OF WORK EQUIPMENT....2106
      REMOVAL AND INSTALLATION OF OPERATORS CAB ASSEMBLY....2108
      REMOVAL AND INSTALLATION OF OPERATORS CAB GLASS (STUCK GLASS)....2110
      REMOVAL AND INSTALLATION OF FRONT WINDOW ASSEMBLY....2120
      REMOVAL AND INSTALLATION OF COUNTERWEIGHT ASSEMBLY....2126
  90.pdf....0
    90 OTHERS....1353
  90-01.pdf....0
    HYDRAULIC CIRCUIT DIAGRAM....2131
    ELECTRICAL CIRCUIT DIAGRAM (1/5)....2133
    ELECTRICAL CIRCUIT DIAGRAM (2/5)....2135
    ELECTRICAL CIRCUIT DIAGRAM (3/5)....2137
    ELECTRICAL CIRCUIT DIAGRAM (4/5)....2139
    ELECTRICAL CIRCUIT DIAGRAM (5/5)....2141

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