Komatsu Hydraulic Excavators PC400, PC400LC, PC450, PC450LC Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Komatsu Hydraulic Excavators PC400-6, PC400LC-6, PC450-6, PC450LC-6, PC400-7, PC400LC-7, PC450-7, PC450LC-7, PC400-8, PC400LC-8, PC450-8, PC450LC-8, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.
Komatsu Hydraulic Excavators PC400-6, PC400LC-6, PC450-6, PC450LC-6, PC400-7, PC400LC-7, PC450-7, PC450LC-7, PC400-8, PC400LC-8, PC450-8, PC450LC-8 workshop service repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
PRODUCT DETAILS:
Total Pages: 7,603 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
SEBM014508 - Hydraulic Excavator PC400-6, PC400LC-6, PC450-6, PC450LC-6 Shop Manual.pdf
SEBM023600 - Hydraulic Excavator PC400-6, PC400LC-6, PC450-6, PC450LC-6 Shop Manual Supplement.pdf
SEBM033000 - Hydraulic Excavator PC400-7, PC400LC-7, PC450-7, PC450LC-7 Shop Manual.pdf
SEBM033007 - Hydraulic Excavator PC400-7, PC400LC-7, PC450-7, PC450LC-7 Shop Manual.pdf
SEBM033012 - Hydraulic Excavator PC400-7, PC400LC-7, PC450-7, PC450LC-7 Shop Manual.pdf
SEN02223-05 - Hydraulic Excavator PC400-8, PC400LC-8, PC450-8, PC450LC-8 Shop Manual.pdf
SEN02223-12 - Hydraulic Excavator PC400-8, PC400LC-8, PC450-8, PC450LC-8 Shop Manual.pdf
SEAM009102T - Hydraulic Excavator PC400-6, PC400LC-6, PC450-6, PC450LC-6 Operation & Maintenance Manual.pdf
SEAM051900T - Hydraulic Excavator PC400-6, PC400LC-6, PC450-6, PC450LC-6 Operation & Maintenance Manual.pdf
SEAM056502 - Hydraulic Excavator GALEO PC400-7, PC400LC-7, PC450-7, PC450LC-7 Operation & Maintenance Manual.pdf
TEN00038-03 - Hydraulic Excavator PC400-7, PC400LC-7, PC450-7, PC450LC-7 Operation & Maintenance Manual.pdf
TEN00039-03 - Hydraulic Excavator GALEO PC400-7, PC400LC-7, PC450-7, PC450LC-7 Operation & Maintenance Manual.pdf
TEN00184-03 - Hydraulic Excavator PC400-8, PC400LC-8, PC450-8, PC450LC-8 Operation & Maintenance Manual.pdf
TEN00336-01 - Hydraulic Excavator PC400-8, PC400LC-8, PC450-8, PC450LC-8 Operation & Maintenance Manual.pdf
TEN00499-02 - Hydraulic Excavator PC400-8, PC400LC-8, PC450-8, PC450LC-8 Operation & Maintenance Manual.pdf
MAIN SECTIONS
SEAM009102T - Hydraulic Excavator PC400-6, PC400LC-6, PC450-6, PC450LC-6 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......21
7.1 BEFORE STARTING ENGINE......21
7.2 AFTER STARTING ENGINE......23
7.3 TRANSPORTATION......31
7.4 BATTERY......33
7.5 TOWING......35
7.6 BUCKET WITH HOOK......36
8.PRECAUTIONS FOR MAINTENANCE......37
8.1 BEFORE CARRYING OUT MAINTENANCE......37
8.2 DURING MAINTENANCE......42
9.POSITION FOR ATTACHING SAFETY LABELS......49
OPERATION......54
10.GENERAL VIEW......55
10.1 GENERAL VIEW OF MACHINE......55
10.2 GENERAL VIEW OF CONTROLS AND GAUGES......56
11.EXPLANATION OF COMPONENTS......57
11.1 MACHINE MONITOR......57
11.2 SWITCHES......68
11.3 CONTROL LEVERS,PEDALS......72
11.4 CEILING WINDOW......77
11.5 FRONT WINDOW......78
11.6 DOOR LOCK......80
11.7 CAP,COVER WITH LOCK......81
11.8 HOT AND COOL BOX......82
11.9 LUGGAGE BOX......82
11.10 ASHTRAY......82
11.11 HANDLING AIR CONDITIONER......83
11.12 CAR RADIO......86
11.13 ELECTRIC POWER TAKE-OUT ADAPTER......90
11.14 FUSE......91
11.15 FUSIBLE LINK......92
11.16 CONTROLLERS......92
11.17 TOOL BOX......92
11.18 GREASE GUN HOLDER......92
11.19 HANDLING ACCUMULATOR......93
12.OPERATION......94
12.1 CHECK BEFORE STARTING ENGINE......94
12.2 STARTING ENGINE......105
12.3 OPERATIONS AND CHECKS AFTER STARTING ENGINE......108
12.4 MOVING MACHINE OFF......114
12.5 STEERING MACHINE......117
12.6 STOPPING MACHINE......119
12.7 SWINGING......120
12.8 OPERATION OF WORK EQUIPMENT......121
12.9 HANDLING ACTIVE MODE......122
12.10 HANDLING WORKING MODE......123
12.11 PROHIBITIONS FOR OPERATION......125
12.12 PRECAUTIONS FOR OPERATION......127
12.13 PRECAUTIONS WHEN TRAVELING UP OR DOWN HILLS......128
12.14 HOW TO ESCAPE FROM MUD......130
12.15 WORK POSSIBLE USING HYDRAULIC EXCAVATOR......131
12.16 REPLACEMENT AND INVERSION OF BUCKET......132
12.17 PARKING MACHINE......134
12.18 CHECK AFTER FINISHING WORK......135
12.19 STOPPING ENGINE......136
12.20 CHECK AFTER STOPPING ENGINE......137
12.21 LOCKING......137
13.TRANSPORTATION......138
13.1 TRANSPORTATION PROCEDURE......138
13.2 LOADING,UNLOADING WORK WITH TRAILERS......139
13.3 METHOD OF LIFTING MACHINE......145
14.COLD WEATHER OPERATION......146
14.1 PRECAUTIONS FOR LOW TEMPERATURE......146
14.2 PRECAUTIONS AFTER COMPLETION OF WORK......148
14.3 AFTER COLD WEATHER......148
15.LONG-TERM STORAGE......149
15.1 BEFORE STORAGE......149
15.2 DURING STORAGE......150
15.3 AFTER STORAGE......150
15.4 STARTING MACHINE AFTER LING-TERM STORAGE......150
16.TROUBLESHOOTING......151
16.1 PHENOMENA THAT ARE NOT FAILURES......151
16.2 METHOD OF TOWING MACHINE......151
16.3 USING METHOD FOR LIGHT-WEIGHT TOWING HOLE......151
16.4 PRECAUTIONS ON PARTICULAR JOBSITES......152
16.5 IF BATTERY IS DISCHARGED......152
16.6 OTHER TROUBLE......157
MAINTENANCE ......162
17.GUIDES TO MAINTENANCE......163
18.OUTLINES OF SERVICE......166
18.1 OUTLINE OF OIL,FUEL,COOLANT......166
18.2 OUTLINE OF ELECTRIC SYSTEM......169
18.3 OUTLINE OF HYDRAULIC SYSTEM......170
19.WEAR PARTS LIST......171
20.USE OF FUEL,COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE......173
21.STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS......177
21.1 INTRODUCTION OF NECESSARY TOOLS......177
21.2 TORQUE LIST......178
22.PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS......179
23.MAINTENANCE SCHEDULE CHART......181
23.1 MAINTENANCE SCHEDULE CHART......181
23.2 MAINTENANCE INTERVAL WHEN USING HYDRAULIC BREAKER......183
24.SERVICE PROCEDURE......184
24.1 INITIAL 250 HOURS SERVICE......184
24.2 WHEN REQUIRED......185
24.3 CHECK BEFORE STARTING......203
24.4 EVERY 50 HOURS SERVICE......207
24.5 EVERY 100 HOURS SERVICE......209
24.6 EVERY 250 HOURS SERVICE......211
24.7 EVERY 500 HOURS SERVICE......217
24.8 EVERY 1000 HOURS SERVICE......225
24.9 EVERY 2000 HOURS SERVICE......228
24.10 EVERY 4000 HOURS SERVICE......231
24.11 EVERY 5000 HOURS SERVICE......232
SPECIFICATIONS......236
25.SPECIFICATIONS......237
OPTIONS,ATTACHMENTS......243
26.GENERAL PRECAUTIONS......244
26.1 PRECAUTIONS RELATED TO SAFETY......244
26.2 PRECAUTIONS WHEN INSTALLING ATTACHMENTS......245
27.HANDLING BUCKET WITH HOOK......246
27.1 CHECKING FOR DAMAGE TO BUCKET WITH HOOK......246
27.2 PROHIBITED OPERATIONS......246
27.3 PRECAUTIONS DURING OPERATIONS......246
28.USING SEAT BELT......247
28.1 SEAT BELT......247
29.HANDLING CAR HEATER......249
29.1 GENERAL LOCATIONS......249
29.2 PRECAUTION FOR CAR HEATER......250
30.MACHINES READY FOR ATTACHMENT......251
30.1 GENERAL LOCATIONS......251
30.2 HYDRAULIC CIRCUIT......253
30.3 PROCEDURE FOR REMOVAL AND INSTALLATION OF ATTACHMENT......255
30.4 OPERATION......257
30.5 LONG TERM STORAGE......258
30.6 SPECIFICATIONS......258
31.INTRODUCTION OF ATTACHMENTS......259
31.1 SPECIFICATION,USE......259
31.2 ATTACHMENT INSTALLATION COMBINATION TABLE......261
31.3 SELECTION OF TRACK SHOES......263
31.4 SELECTION OF BUCKET TEETH......264
32.EXTENDING MACHINE SERVICE LIFE......265
32.1 HYDRAULIC BREAKER......265
32.2 POWER RIPPER......269
32.3 FORK GRAB......270
32.4 GRAPPLE BUCKET......271
32.5 SCRAP GRAPPLE......272
32.6 CRUSHER AND CUTTER......273
32.7 HYDRAULIC PILE DRIVER......274
32.8 HYDRAULIC EXCAVATOR WITH MULTI-PURPOSE CRANE......275
33.AUTO-GREASING SYSTEM......276
33.1 AUTO GREASING CONTROLLER......276
33.2 ACTION WHEN ABNORMALITY OCCURS......277
33.3 CHECK BEFORE STARTING......278
33.4 EVERY 50 HOURS SERVICE......280
SEAM051900T - Hydraulic Excavator PC400-6, PC400LC-6, PC450-6, PC450LC-6 Operation & Maintenance Manual......282
COVER......282
1. FOREWORD......283
2. SAFETY INFORMATION......286
3. INTRODUCTION......287
4. LOCATION OF PLATES, TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR......288
5. CONTENTS......289
SAFETY......293
6. GENERAL PRECAUTIONS ......294
7. PRECAUTIONS DURING OPERATION......303
7.1 BEFORE STARTING ENGINE......303
7.2 AFTER STARTING ENGINE......305
7.3 TRANSPORTATION......313
7.4 BATTERY......315
7.5 TOWING......317
7.6 BUCKET WITH HOOK......318
8. PRECAUTIONS FOR MAINTENANCE......319
8.1 BEFORE CARRYING OUT MAINTENANCE......319
8.2 DURING MAINTENANCE......324
9. POSITION FOR ATTACHING SAFETY LABELS......331
OPERATION......336
10. GENERAL VIEW ......337
10.1 GENERAL VIEW OF MACHINE......337
10.2 GENERAL VIEW OF CONTROLS AND GAUGES......338
11. EXPLANATION OF COMPONENTS......339
11.1 MACHINE MONITOR......339
11.2 SWITCHES ......350
11.3 CONTROL LEVERS, PEDALS......354
11.4 CEILING WINDOW......359
11.5 FRONT WINDOW......360
11.6 DOOR LOCK......362
11.7 CAP, COVER WITH LOCK......363
11.8 HOT AND COOL BOX......364
11.9 LUGGAGE BOX......364
11.10 ASHTRAY......364
11.11 HANDLING AIR CONDITIONER......365
11.12 CAR RADIO......368
11.13 ELECTRIC POWER TAKE-OUT ADAPTER......372
11.14 FUSE......373
11.15 FUSIBLE LINK......374
11.16 CONTROLLERS......374
11.17 TOOL BOX......374
11.18 GREASE GUN HOLDER......374
11.19 HANDLING ACCUMULATOR......375
12. OPERATION......376
12.1 CHECK BEFORE STARTING ENGINE......376
12.2 STARTING ENGINE......387
12.3 OPERATIONS AND CHECKS AFTER STARTING ENGINE......390
12.4 MOVING MACHINE OFF......396
12.5 STEERING MACHINE......399
12.6 STOPPING MACHINE......401
12.7 SWINGING......402
12.8 OPERATION OF WORK EQUIPMENT......403
12.9 HANDLING ACTIVE MODE......404
12.10 HANDLING WORKING MODE......405
12.11 PROHIBITIONS FOR OPERATION......407
12.12 PRECAUTIONS FOR OPERATION......409
12.13 PRECAUTIONS WHEN TRAVELING UP OR DOWN HILLS......410
12.14 HOW TO ESCAPE FROM MUD......412
12.15 WORK POSSIBLE USING HYDRAULIC EXCAVATOR......413
12.16 REPLACEMENT AND INVERSION OF BUCKET......414
12.17 PARKING MACHINE......416
12.18 CHECK AFTER FINISHING WORK......417
12.19 STOPPING ENGINE......418
12.20 CHECK AFTER STOPPING ENGINE......419
12.21 LOCKING......419
13. TRANSPORTATION......420
13.1 TRANSPORTATION PROCEDURE......420
13.2 LOADING, UNLOADING WORK WITH TRAILERS......421
13.3 METHOD OF LIFTING MACHINE......427
14. COLD WEATHER OPERATION......428
14.1 PRECAUTIONS FOR LOW TEMPERATURE......428
14.2 PRECAUTIONS AFTER COMPLETION OF WORK......430
14.3 AFTER COLD WEATHER......430
15. LONG-TERM STORAGE......431
15.1 BEFORE STORAGE......431
15.2 DURING STORAGE......432
15.3 AFTER STORAGE......432
15.4 STARTING MACHINE AFTER LONG-TERM STORAGE......432
16. TROUBLESHOOTING......433
16.1 PHENOMENA THAT ARE NOT FAILURES......433
16.2 METHOD OF TOWING MACHINE......433
16.3 USING METHOD FOR LIGHT-WEIGHT TOWING HOLE......433
16.4 PRECAUTIONS ON PARTICULAR JOBSITES......434
16.5 IF BATTERY IS DISCHARGED......434
16.6 OTHER TROUBLE......439
MAINTENANCE......444
17. GUIDES TO MAINTENANCE......445
18. OUTLINES OF SERVICE......448
18.1 OUTLINE OF OIL,FUEL,COOLANT......448
18.2 OUTLINE OF ELECTRIC SYSTEM......451
18.3 OUTLINE OF HYDRAULIC SYSTEM......452
19. WEAR PARTS LIST......453
20. USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE......455
21. STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS......459
21.1 INTRODUCTION OF NECESSARY TOOLS......459
21.2 TORQUE LIST......460
22. PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS......461
23. MAINTENANCE SCHEDULE CHART......463
23.1 MAINTENANCE SCHEDULE CHART......463
23.2 MAINTENANCE INTERVAL WHEN USING HYDRAULIC BREAKER......465
24. SERVICE PROCEDURE......466
24.1 INITIAL 250 HOURS SERVICE......466
24.2 WHEN REQUIRED......467
24.3 CHECK BEFORE STARTING......485
24.4 EVERY 50 HOURS SERVICE......489
24.5 EVERY 100 HOURS SERVICE......491
24.6 EVERY 250 HOURS SERVICE......493
24.7 EVERY 500 HOURS SERVICE......499
24.8 EVERY 1000 HOURS SERVICE......507
24.9 EVERY 2000 HOURS SERVICE......510
24.10 EVERY 4000 HOURS SERVICE......513
24.11 EVERY 5000 HOURS SERVICE......514
SPECIFICATIONS......518
25. SPECIFICATIONS......519
OPTIONS, ATTACHMENTS......525
26. GENERAL PRECAUTIONS......526
26.1 PRECAUTIONS RELATED TO SAFETY......526
26.2 PRECAUTIONS WHEN INSTALLING ATTACHMENTS......527
27. HANDLING BUCKET WITH HOOK......528
27.1 CHECKING FOR DAMAGE TO BUCKET WITH HOOK......528
27.2 PROHIBITED OPERATIONS......528
27.3 PRECAUTIONS DURING OPERATIONS......528
28. USING SEAT BELT......529
28.1 SEAT BELT......529
29. HANDLING CAR HEATER......531
29.1 GENERAL LOCATIONS......531
29.2 PREPARATION FOR CAR HEATER......532
30. MACHINES READY FOR ATTACHMENT ......533
30.1 GENERAL LOCATIONS......533
30.2 HYDRAULIC CIRCUIT......535
30.3 PROCEDURE FOR REMOVAL AND INSTALLATION OF ATTACHMENT ......537
30.4 OPERATION......539
30.5 LONG TERM STORAGE......540
30.6 SPECIFICATIONS......540
31. INTRODUCTION OF ATTACHMENTS......541
31.1 SPECIFICATION, USE......541
31.2 ATTACHMENT INSTALLATION COMBINATION TABLE......543
31.3 SELECTION OF TRACK SHOES......545
31.4 SELECTION OF BUCKET TEETH......546
32. EXTENDING MACHINE SERVICE LIFE......547
32.1 HYDRAULIC BREAKER......547
32.2 POWER RIPPER......551
32.3 FORK GRAB......552
32.4 GRAPPLE BUCKET......553
32.5 SCRAP GRAPPLE......554
32.6 CRUSHER AND CUTTER......555
32.7 HYDRAULIC PILE DRIVER......556
32.8 HYDRAULIC EXCAVATOR WITH MULTIPURPOSE CRANE......557
33. AUTO-GREASING SYSTEM......558
31.1 AUTO-GREASING CONTROLLER......558
33.2 ACTION WHEN ABNORMALITY OCCURS......559
33.3 CHECK BEFORE STARTING......560
33.4 EVERY 50 HOURS SERVICE......562
SEAM056502 - Hydraulic Excavator GALEO PC400-7, PC400LC-7, PC450-7, PC450LC-7 Operation & Maintenance Manual......564
COVER......564
FOREWORD......565
FOREWORD......566
SAFETY INFORMATION......569
INTRODUCTION......571
DIRECTIONS OF MACHINE......571
PRODUCT INFORMATION......572
MACHINE SERIAL NUMBER PLATE AND ITS LOCATION......572
ENGINE SERIAL NUMBER PLATE AND ITS LOCATION......572
SERVICE METER LOCATION......573
YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR......573
CONTENTS......574
SAFETY......577
SAFETY INFORMATION......578
SAFETY LABELS......580
LOCATION OF SAFETY LABELS......580
SAFETY LABELS......581
SAFETY INFORMATION......586
SAFETY RULES......586
IF ABNORMALITIES ARE FOUND......586
WORKING WEAR AND PERSONAL PROTECTIVE ITEMS......586
FIRE EXTINGUISHER AND FIRST AID KIT......586
SAFETY EQUIPMENT......586
KEEP MACHINE CLEAN......587
KEEP OPERATOR'S COMPARTMENT CLEAN......587
LEAVING OPERATOR'S SEAT WITH LOCK......587
HANDRAILS AND STEPS......588
MOUNTING AND DISMOUNTING......588
NO PERSONS ON ATTACHMENTS......588
BURN PREVENTION......589
FIRE PREVENTION AND EXPLOSION PREVENTION......589
ACTION IF FIRE OCCURS......590
WINDSHIELD WASHER FLUID......590
FALLING OBJECTS, FLYING OBJECTS AND INTRUDING OBJECTS PREVENTION......590
ATTACHMENT INSTALLATION......591
ATTACHMENT COMBINATIONS......591
CAB WINDOW GLASSES......591
UNAUTHORIZED MODIFICATIONS......591
SAFETY AT JOBSITE......591
WORKING ON LOOSE GROUND......592
DISTANCE TO HIGH VOLTAGE CABLES......592
ENSURE GOOD VISIBILITY......592
VENTILATION FOR ENCLOSED AREA......593
SIGNALMAN'S SIGNAL AND SIGNS......593
EMERGENCY EXIT FROM OPERATOR'S CAB......593
ASBESTOS DUST HAZARD PREVENTION......593
SAFETY MACHINE OPERATION......594
STARTING ENGINE......594
CHECKS BEFORE STARTING ENGINE......594
SAFETY RULES FOR STARTING ENGINE......594
STARTING ENGINE IN COLD WEATHER......595
OPERATION......596
CHECKS BEFORE OPERATION......596
SAFETY RULES FOR CHANGING MACHINE DIRECTIONS......596
SAFETY RULES FOR TRAVELING......597
TRAVELING ON SLOPES......597
OPERATIONS ON SLOPES......598
PROHIBITED OPERATIONS......598
OPERATIONS ON SNOW......600
PARKING MACHINE......601
TRANSPORTATION......602
LOADING AND UNLOADING......602
SHIPPING THE MACHINE......602
BATTERY......603
BATTERY HAZARD PREVENTION......603
STARTING ENGINE WITH BOOSTER CABLES......604
TOWING......605
SAFETY RULES FOR TOWING......605
LIFTING OBJECTS WITH BUCKET......606
SAFETY RULES FOR LIFTING OBJECTS......606
SAFETY MAINTENANCE INFORMATION......607
WARNING TAG......607
KEEP WORK PLACE CLEAN AND TIDY......607
APPOINT LEADER WHEN WORKING WITH OTHERS......607
STOP ENGINE BEFORE CARRYING OUT MAINTENANCE......608
TWO WORKERS FOR MAINTENANCE WHEN ENGINE IS RUNNING......608
PROPER TOOLS......609
ACCUMULATOR......609
PERSONNEL......609
ATTACHMENTS......610
WORK UNDER THE MACHINE......610
NOISE......610
WHEN USING HAMMER......610
WELDING WORKS......610
REMOVING BATTERY TERMINALS......611
SAFETY FIRST WHEN USING HIGH-PRESSURE GREASE TO ADJUST TRACK TENSION......611
DO NOT DISASSEMBLE RECOIL SPRINGS......611
SAFETY RULES FOR HIGH-PRESSURE OIL......612
SAFETY HANDLING HIGH-PRESSURE HOSES......612
WASTE MATERIALS......612
AIR CONDITIONER MAINTENANCE......612
COMPRESSED AIR......613
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS......613
OPERATION......615
MACHINE VIEW ILLUSTRATIONS......616
OVERALL MACHINE VIEW......616
CONTROLS AND GAUGES......617
DETAILED CONTROLS AND GAUGES......619
MONITORING SYSTEM......619
SWITCHES......644
CONTROL LEVERS AND PEDALS......649
SUN ROOF......652
WINDSHIELD......652
EMERGENCY EXIT FROM OPERATOR'S CAB......657
DOOR LOCK......657
CAP WITH LOCK......658
HOT AND COOL BOX......659
MAGAZINE BOX......660
ASHTRAY......660
AIR CONDITIONER CONTROLS......661
RADIO......675
AUXILIARY ELECTRIC POWER......679
FUSE......680
FUSIBLELINK......681
CONTROLLERS......681
TOOL BOX......682
GREASE GUN HOLDER......682
ACCUMULATOR......683
MACHINE OPERATIONS AND CONTROLS......684
BEFORE STARTING ENGINE......684
STARTING ENGINE......699
AFTER STARTING ENGINE......703
STOPPING THE ENGINE......712
MACHINE OPERATION......713
STEERING THE MACHINE......717
SWINGING......719
WORK EQUIPMENT CONTROLS AND OPERATIONS......720
WORKING MODE......722
PROHIBITED OPERATIONS......723
GENERAL OPERATION INFORMATION......725
TRAVELING ON SLOPES......727
ESCAPE FROM MUD......729
RECOMMENDED APPLICATIONS......730
BUCKET REPLACEMENT AND INVERSION......732
PARKING MACHINE......735
CHECK AFTER SHUT OFF ENGINE......736
MACHINE INSPECTION AFTER DAILY WORK......736
LOCKING......737
TRANSPORTATION......738
PRECAUTIONS FOR TRANSPORTATION......738
LIFTING MACHINE......738
PRECAUTIONS WHEN LOADING......739
TRANSPORTATION POSTURE......739
COLD WEATHER OPERATION......743
COLD WEATHER OPERATION INFORMATION......743
AFTER DAILY WORK COMPLETION......745
AFTER COLD WEATHER SEASON......745
LONG TERM STORAGE......746
BEFORE STORAGE......746
DURING STORAGE......746
AFTER STORAGE......746
STARTING MACHINE AFTER LONG-TERM STORAGE......747
TROUBLES AND ACTIONS......748
RUNNING OUT OF FUEL......748
PHENOMENA THAT ARE NOT FAILURES......749
TOWING THE MACHINE......750
LIGHTWEIGHT TOWING HOLE......750
SEVERE JOB CONDITION......750
DISCHARGED BATTERY......751
OTHER TROUBLE......755
MAINTENANCE......761
MAINTENANCE INFORMATION......762
LUBRICANTS, COOLANT AND FILTERS......764
HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC......764
ELECTRIC SYSTEM MAINTENANCE......767
WEAR PARTS......768
WEAR PARTS LIST......768
LUBRICANTS, FUEL AND COOLANT SPECIFICATIONS......769
TIGHTENING TORQUE SPECIFICATIONS......773
TIGHTENING TORQUE LIST......773
SAFETY CRITICAL PARTS......774
SAFETY CRITICAL PARTS LIST......774
MAINTENANCE SCHEDULE......775
MAINTENANCE SCHEDULE CHART......775
MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER......777
MAINTENANCE PROCEDURE......778
INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS)......778
REPLACE FUEL FILTER CARTRIDGE......818
INITIAL 1000 HOURS MAINTENANCE (ONLY AFTER THE FIRST 1000 HOURS)......778
CHECK ENGINE VALVE CLEARANCE, ADJUST......837
WHEN REQUIRED......779
CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT......779
CLEAN INSIDE OF COOLING SYSTEM......784
CHECK AND TIGHTEN TRACK SHOE BOLTS......787
CHECK AND ADJUST TRACK TENSION......788
CHECK ELECTRICAL INTAKE AIR HEATER......790
REPLACE BUCKET TEETH (VERTICAL PIN TYPE)......791
REPLACE BUCKET TEETH (HORIZONTAL PIN TYPE)......794
REPLACE BUCKET SIDE CUTTER, SHROUD......795
ADJUST BUCKET CLEARANCE......796
CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID......797
CHECK AND ADJUST AIR CONDITIONER......798
WASH WASHABLE FLOOR......799
BLEEDING AIR FROM HYDRAULIC SYSTEM......802
METHOD FOR RELEASING INTERNAL PRESSURE IN HYDRAULIC CIRCUIT......804
CHECK NITROGEN GAS CHARGE PRESSURE IN ACCUMULATOR (control circuit)......805
CHECK BEFORE STARTING......806
EVERY 250 HOURS MAINTENANCE......807
LUBRICATING......807
CHECK OIL LEVEL IN SWING MACHINERY CASE, ADD OIL......808
CHECK OIL LEVEL IN FINAL DRIVE CASE, ADD OIL......809
CHECK LEVEL OF BATTERY ELECTROLYTE......810
LUBRICATE SWING CIRCLE......813
CHECK FAN BELT, ALTERNATOR BELT TENSION, ADJUST......813
CHECK AIR CONDITIONER COMPRESSOR BELT TENSION, ADJUST......815
EVERY 500 HOURS MAINTENANCE......816
LUBRICATING......816
REPLACE FUEL FILTER CARTRIDGE......818
CHECK, WASH FUEL STRAINER......820
CHECK SWING PINION GREASE LEVEL, ADD GREASE......821
CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE......822
CLEAN AND INSPECT RADIATOR FINS, OIL COOLER FINS, AFTER COOLER FINS, FUEL COOLER FINS, AND CONDENSER FINS (ONLY MACHINES EQUIPPED WITH AIR CONDITIONER)......824
CLEAN AIR CONDITIONER FRESH/RECIRC FILTERS......825
REPLACE BREATHER ELEMENT IN HYDRAULIC TANK......826
REPLACE ADDITIONAL FUEL FILTER CARTRIDGE......827
EVERY 1000 HOURS MAINTENANCE......829
REPLACE HYDRAULIC OIL FILTER ELEMENT......829
CHANGE OIL IN SWING MACHINERY CASE......831
CHECK OIL LEVEL IN DAMPER CASE, ADD OIL......832
CHECK ALL TIGHTENING PARTS OF TURBOCHARGER......832
CHECK PLAY TURBOCHARGER ROTOR......832
REPLACE CORROSION RESISTOR CARTRIDGE......833
REPLACE HYDRAULIC TANK ADDITIONAL BREATHER ELEMENT......834
CHECK NITROGEN GAS CHARGE PRESSURE IN ACCUMULATOR (for breaker)......834
EVERY 2000 HOURS MAINTENANCE......835
CHANGE OIL IN FINAL DRIVE CASE......835
CHECK INJECTOR......835
CLEAN HYDRAULIC TANK STRAINER......836
CLEAN ENGINE BREATHER......836
CLEAN, CHECK TURBOCHARGER......837
CHECK ALTERNATOR, STARTING MOTOR......837
CHECK ENGINE VALVE CLEARANCE, ADJUST......837
CHECK VIBRATION DAMPER......837
EVERY 4000 HOURS MAINTENENCE......838
CHECK WATER PUMP......838
CHECK FOR LOOSENESS OF HIGH-PRESSURE CLAMP, HARDENING OF RUBBER......838
CHECK FOR MISSING FUEL SPRAY PREVENTION CAP, HARDENING OF RUBBER......839
REPLACE INJECTOR NOZZLE ASSEMBLY......839
EVERY 5000 HOURS MAINTENANCE......840
CHANGE OIL IN HYDRAULIC TANK......840
EVERY 8000 HOURS MAINTENANCE......842
REPLACE HIGH-PRESSURE PIPING CLAMP......842
REPLACE FUEL SPRAY PREVENTION CAP......842
SPECIFICATIONS......843
SPECIFICATIONS......844
ATTACHMENTS, OPTIONS......847
GENERAL PRECAUTIONS FOR SAFETY......848
PRECAUTIONS WHEN SELECTING......848
READ THE INSTRUCTION MANUAL THOROUGHLY......848
PRECAUTIONS WHEN REMOVING OR INSTALLING......848
PRECAUTIONS WHEN USING......848
MACHINE READY FOR ATTACHMENT......849
LOCATIONS......849
HYDRAULIC CIRCUIT......853
ATTACHMENT REMOVAL AND INSTALLATION......857
ATTACHMENT OPERATIONS......859
LONG TERM STORAGE......861
SPECIFICATIONS......861
ATTACHMENT GUIDE......862
ATTACHMENT COMBINATIONS......862
RECOMMENDED ATTACHMENT OPERATIONS......864
HYDRAULIC BREAKER......864
INDEX......869
SEBM014508 - Hydraulic Excavator PC400-6, PC400LC-6, PC450-6, PC450LC-6 Shop Manual......873
COVER......873
CONTENTS......874
01 GENERAL......900
SPECIFICATION DRAWINGS......901
SPECIFICATIONS......904
WEIGHT TABLE......910
FUEL, COOLANT AND LUBRICANTS......916
10 STRUCTURE AND FUNCTION......918
PARTS RELATED TO ENGINE......919
RADIATOR, OIL COOLER......921
POWER TRAIN......922
FINAL DRIVE......923
SWING CIRCLE......924
SWING MACHINERY......926
TRACK FRAME, RECOIL SPRING......927
TRACK SHOE......928
HYDRAULIC PIPING DRAWING......929
HYDRAULIC TANK, HYDRAULIC FILTER......933
HYDRAULIC PUMP......934
CONTROL VALVE......953
SELF-REDUCING PRESSURE VALVE......964
SUCTION SAFETY VALVE......969
CLSS......970
SWING MOTOR......1026
CENTER SWIVEL JOINT......1032
TRAVEL MOTOR......1034
VALVE CONTROL......1043
WORK EQUIPMENTSWING PPC VALVE......1044
TRAVEL PPC VALVE......1048
SERVICE PPC VALVE......1052
PPC SAFETY LOCK VALVE......1055
PPC ACCUMULATOR......1055
PPC SHUTTLE VALVE, TRAVEL JUNCTION VALVE......1056
LS-EPC VALVE......1063
SOLENOID VALVE......1064
BOOM HOLDING VALVE......1066
WORK EQUIPMENT......1069
AIR CONDITIONER......1070
ACTUAL ELECTRIC WIRING DIAGRAM......1071
ENGINE CONTROL......1075
ELECTRONIC CONTROL SYSTEM......1081
MACHINE MONITOR SYSTEM......1106
FRONT WINDOW AUTO PULL-UP SYSTEM......1116
20 TESTING AND ADJUSTING......1118
STANDARD VALUE TABLE FOR ENGINE RELATED PARTS......1119
STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS......1120
STANDARD VALUE TABLE FOR ELECTRICAL PARTS......1136
TESTING AND ADJUSTING......1144
TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING......1145
MEASURING ENGINE SPEED......1146
MEASURING EXHAUST COLOR......1147
ADJUSTING VALVE CLEARANCE......1148
MEASURING COMPRESSION PRESSURE......1149
MEASURING BLOW-BY PRESSURE......1149
TESTING AND ADJUSTING FUEL INJECTION TIMING......1150
MEASURING ENGINE OIL PRESSURE......1152
TESTING AND ADJUSTING FAN BELT TENSION......1153
TESTING AND ADJUSTING BELT TENSION FOR AIR CONDITIONER COMPRESSOR......1153
ADJUSTING ENGINE SPEED SENSOR......1154
MEASURING AIR SUPPLY PRESSURE (BOOST PRESSURE)......1155
TESTING AND ADJUSTING GOVERNOR MOTOR LEVER STROKE......1156
TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT......1157
TESTING AND ADJUSTING TVC VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE)......1161
TESTING AND ADJUSTING LS VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE) AND LS DIFFERENTIAL PRESSURE......1164
TESTING CONTROL CIRCUIT OIL PRESSURE (OIL PRESSURE WHEN SELF-PRESSURE IS REDUCED)......1169
TESTING SOLENOID VALVE OUTPUT PRESSURE......1170
MEASURING PPC VALVE OUTPUT PRESSURE AND TESTING PPC SHUTTLE VALVE......1173
ADJUSTING WORK EQUIPMENT, SWING PPC VALVE......1175
TESTING TRAVEL DEVIATION......1176
TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT......1177
MEASURING OIL LEAKAGE......1179
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT......1181
TESTING CLEARANCE OF SWING CIRCLE BEARING......1182
TESTING WEAR OF SPROCKET......1183
TESTING AND ADJUSTING TRACK SHOE TENSION......1184
BLEEDING AIR......1185
TROUBLESHOOTING......1187
POINTS TO REMEMBER WHEN TROUBLESHOOTING......1188
SEQUENCE OF EVENTS IN TROUBLESHOOTING......1189
POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE......1190
CHECKS BEFORE TROUBLESHOOTING......1198
CONNECTOR TYPES AND MOUNTING LOCATIONS......1199
CONNECTOR ARRANGEMENT DIAGRAM......1201
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS......1204
EXPLANATION OF CONTROL MECHANISM OF ELECTRICAL SYSTEM......1214
DISPLAY METHOD AND SPECIAL FUNCTIONS OF MONITOR PANEL......1215
METHOD OF USING JUDGEMENT TABLE......1224
METHOD OF USING TROUBLESHOOTING CHARTS......1226
DETAILS OF TROUBLESHOOTING AND TROUBLESHOOTING PROCEDURE......1228
SERVICE CODE TABLE......1233
TROUBLESHOOTING OF COMMUNICATION ABNORMALITY SYSTEM (N MODE)......1234
N-1 [E218] COMMUNICATION ABNORMALITY......1235
TROUBLESHOOTING OF ENGINE THROTTLE, PUMP CONTROLLER (GOVERNOR CONTROL SYSTEM) (E MODE)......1237
POINTS TO REMEMBER WHEN CARRYING OUT TROUBLESHOOTING OF ENGINE THROTTLE, PUMP CONTROLLER SYSTEM......1238
ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE......1239
JUDGEMENT TABLE FOR ENGINE THROTTLE, PUMP CONTROLLER (GOVERNOR CONTROL SYSTEM) AND ENGINE RELATED PARTS......1243
ELECTRICAL CIRCUIT DIAGRAM FOR E MODE SYSTEM......1245
E-1 ABNORMALITY IN ENGINE THROTTLE, PUMP CONTROLLER POWER SOURCE (CONTROLLER LED IS OFF)......1247
E-2 [E308] ABNORMALITY IN FUEL CONTROL DIAL INPUT VALUE IS DISPLAYED......1248
E-3 [E317] ABNORMALITY (DISCONNECTION) IN MOTOR DRIVE SYSTEM IS DISPLAYED......1249
E-4 [E318] ABNORMALITY (SHORT CIRCUIT) IN MOTOR DRIVE SYSTEM IS DISPLAYED......1250
E-5 [E306] ABNORMALITY IN FEEDBACK POTENTIOMETER SYSTEM IS DISPLAYED......1251
E-6 [E315] ABNORMALITY (SHORT CIRCUIT) IN BATTERY RELAY OUTPUT SYSTEM IS DISPLAYED......1252
E-7 [E316] ABNORMALITY (STEP-OUT) IN MOTOR IS DISPLAYED......1253
E-8 ENGINE DOES NOT START......1254
E-9 ENGINE SPEED IS IRREGULAR......1256
a) IDLING SPEED IS IRREGULAR......1256
b) THERE IS HUNTING......1258
E-10 LACK OF OUTPUT (ENGINE HIGH IDLING SPEED IS TOO LOW)......1260
E-11 ENGINE DOES NOT STOP......1262
E-12 DEFECTIVE OPERATION OF BATTERY RELAY SYSTEM (ENGINE DOES NOT STOP)......1264
TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)......1266
METHOD OF USING TROUBLESHOOTING CHARTS......1267
S-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME)......1271
S-2 ENGINE DOES NOT START......1272
(1) ENGINE DOES NOT TURN......1272
(2) ENGINE TURNS BUT NO EXHAUST SMOKE COMES OUT (FUEL IS NOT BEING INJECTED)......1273
(3) EXHAUST SMOKE COMES OUT BUT ENGINE DOES NOT START (FUEL IS BEING INJECTED)......1274
S-3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR)......1275
S-4 ENGINE STOPS DURING OPERATIONS......1276
S-5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING)......1277
S-6 ENGINE LACKS OUTPUT (NO POWER)......1278
S-7 EXHAUST SMOKE IS BLACK (INCOMPLETE COMBUSTION)......1279
S-8 OIL CONSUMPTION IS EXCESSIVE (OR EXHAUST SMOKE IS BLUE)......1280
S-9 OIL BECOMES CONTAMINATED QUICKLY......1281
S-10 FUEL CONSUMPTION IS EXCESSIVE......1282
S-11 OIL IS IN COOLING WATER, OR WATER SPURTS BACK, OR WATER LEVEL GOES DOWN......1283
S-12 OIL PRESSURE CAUTION LAMP LIGHTS UP (DROP IN OIL PRESSURE)......1284
S-13 OIL LEVEL RISES (WATER, FUEL IN OIL)......1285
S-14 WATER TEMPERATURE BECOMES TOO HIGH (OVERHEATING)......1286
S-15 ABNORMAL NOISE IS MADE......1287
S-16 VIBRATION IS EXCESSIVE......1288
TROUBLESHOOTING OF ENGINE THROTTLE, PUMP CONTROLLER (PUMP CONTROL SYSTEM) (C MODE)......1289
POINTS TO REMEMBER WHEN TROUBLESHOOTING PUMP CONTROLLER SYSTEM......1290
ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE......1291
JUDGEMENT TABLE FOR ENGINE THROTTLE, PUMP CONTROLLER (PUMP CONTROL SYSTEM) AND HYDRAULIC RELATED PARTS......1299
ELECTRICAL CIRCUIT DIAGRAM FOR C MODE......1301
C-1 ABNORMALITY IN CONTROLLER POWER SOURCE SYSTEM (CONTROLLER LED IS OFF)......1303
C-2 [E232] SHORT CIRCUIT IN FRONT PUMP TVC SOLENOID SYSTEM IS DISPLAYED......1304
C-3 [E233] DISCONNECTION IN FRONT PUMP TVC SOLENOID SYSTEM IS DISPLAYED......1306
C-4 [E236] SHORT CIRCUIT IN REAR PUMP TVC SOLENOID SYSTEM IS DISPLAYED......1308
C-5 [E237] DISCONNECTION IN REAR PUMP TVC SOLENOID SYSTEM IS DISPLAYED......1310
C-6 [E207] SHORT CIRCUIT IN ACTIVE MODE (BOOM) SOLENOID SYSTEM IS DISPLAYED......1312
C-7 [E208] DISCONNECTION IN ACTIVE MODE (BOOM) SOLENOID SYSTEM IS DISPLAYED......1313
C-8 [E203] SHORT CIRCUIT IN SWING BRAKE SOLENOID SYSTEM IS DISPLAYED......1314
C-9 [E213] DISCONNECTION IN SWING BRAKE SOLENOID SYSTEM IS DISPLAYED......1316
C-10 [E204] SHORT CIRCUIT IN PUMP MERGE/DIVIDER SOLENOID SYSTEM IS DISPLAYED......1318
C-11 [E214] DISCONNECTION IN PUMP MERGE/DIVIDER SOLENOID SYSTEM IS DISPLAYED......1319
C-12 [E206] SHORT CIRCUIT IN TRAVEL SPEED SOLENOID SYSTEM IS DISPLAYED......1320
C-13 [E216] DISCONNECTION IN TRAVEL SPEED SELECTOR SOLENOID SYSTEM IS DISPLAYED......1321
C-14 [E231] SHORT CIRCUIT IN ACTIVE MODE (SWING) SOLENOID SYSTEM IS DISPLAYED......1322
C-15 [E235] DISCONNECTION IN ACTIVE MODE (SWING) SOLENOID SYSTEM IS DISPLAYED......1323
C-16 [E217] MODEL SELECTION INPUT ERROR IS DISPLAYED......1324
C-17 [E222] SHORT CIRCUIT IN LS-EPC SOLENOID SYSTEM IS DISPLAYED......1326
C-18 [E223] DISCONNECTION IN LS-EPC SOLENOID SYSTEM IS DISPLAYED......1327
C-19 [E224] ABNORMALITY IN FRONT PUMP PRESSURE SENSOR SYSTEM IS DISPLAYED......1328
C-20 [E225] ABNORMALITY IN REAR PUMP PRESSURE SENSOR SYSTEM IS DISPLAYED......1329
C-21 [E226] ABNORMALITY IN PRESSURE SENSOR POWER SOURCE IS DISPLAYED......1330
C-22 [E227] ABNORMALITY IN ENGINE SPEED SENSOR SYSTEM IS DISPLAYED......1331
C-23 ABNORMALITY IN MACHINE PUSH-UP SOLENOID SYSTEM (NO SERVICE CODE DISPLAYED)......1332
TROUBLESHOOTING OF ENGINE THROTTLE, PUMP CONTROLLER (INPUT SIGNAL SYSTEM) (F MODE)......1334
ELECTRICAL CIRCUIT DIAGRAM FOR F MODE......1335
F-1 BIT PATTERN 20-(1) (SWING OIL PRESSURE SWITCH) DOES NOT LIGHT UP......1337
F-2 BIT PATTERN 20-(2) (TRAVEL OIL PRESSURE SWITCH) DOES NOT LIGHT UP......1338
F-3 BIT PATTERN 20-(3) (BOOM LOWER OIL PRESSURE SWITCH) DOES NOT LIGHT UP......1339
F-4 BIT PATTERN 20-(4) (BOOM RAISE OIL PRESSURE SWITCH) DOES NOT LIGHT UP......1340
F-5 BIT PATTERN 20-(5) (ARM IN OIL PRESSURE SWITCH) DOES NOT LIGHT UP......1341
F-6 BIT PATTERN 20-(6) (ARM OUT OIL PRESSURE SWITCH) DOES NOT LIGHT UP......1342
F-7 BIT PATTERN 21-(1) (BUCKET CURL OIL PRESSURE SWITCH) DOES NOT LIGHT UP......1343
F-8 BIT PATTERN 21-(2) (BUCKET DUMP OIL PRESSURE SWITCH) DOES NOT LIGHT UP......1344
F-9 BIT PATTERN 21-(3) (SWING LOCK SWITCH) DOES NOT LIGHT UP......1345
F-10 BIT PATTERN 22-(5) (KEROSENE MODE CONNECTION) DOES NOT LIGHT UP......1346
F-11 BIT PATTERN 22-(6) (L.H. KNOB SWITCH) DOES NOT LIGHT UP......1347
TROUBLESHOOTING OF HYDRAULIC, MECHANICAL SYSTEM (H MODE)......1348
PUMP MERGE/DIVIDER LOGIC, SOLENOID ACTUATION TABLE......1350
TABLE OF FAILURE MODES AND CAUSES......1351
H-1 SPEEDS OF ALL WORK EQUIPMENT, SWING, TRAVEL ARE SLOW OR LACK POWER......1355
H-2 THERE IS EXCESSIVE DROP IN ENGINE SPEED, OR ENGINE STALLS......1357
H-3 NO WORK EQUIPMENT, TRAVEL, SWING MOVE......1358
H-4 ABNORMAL NOISE GENERATED (AROUND PUMP)......1358
H-5 AUTO-DECELERATION DOES NOT WORK (WHEN PPC SHUTTLE VALVE IS CAUSE)......1359
H-6 FINE CONTROL ABILITY IS POOR OR RESPONSE IS POOR......1359
H-7 BOOM IS SLOW OR LACKS POWER......1360
H-8 ARM IS SLOW OR LACKS POWER......1362
H-9 BUCKET IS SLOW OR LACKS POWER......1364
H-10 WORK EQUIPMENT (BOOM, ARM, BUCKET)DOES NOT MOVE (BUT TRAVEL AND SWING ARE NORMAL)......1365
H-11 EXCESSIVE HYDRAULIC DRIFT (BOOM, ARM, BUCKET)......1365
H-12 EXCESSIVE TIME LAG (ENGINE AT LOW IDLING)......1366
H-13 OTHER EQUIPMENT MOVES WHEN SINGLE CIRCUIT IS RELIEVED......1366
H-14 IN L/O, F/O MODES, WORK EQUIPMENT SPEED IS FASTER THAN SPECIFIED SPEED......1367
H-15 DEFECTIVE ACTUATION OF MACHINE PUSH-UP FUNCTION......1367
H-16 IN COMPOUND OPERATIONS, WORK EQUIPMENT WITH LARGER LOAD IS SLOW......1367
H-17 IN SWING + BOOM RAISE, BOOM RAISE IS SLOW......1368
H-18 IN SWING + ARM, ARM IS SLOW......1368
H-19 IN SWING + TRAVEL, TRAVEL SPEED DROPS EXCESSIVELY......1368
H-20 TRAVEL DEVIATION......1369
a) WHEN THERE IS DEVIATION IN NORMAL TRAVEL......1369
b) EXCESSIVE TRAVEL DEVIATION WHEN STARTING......1369
H-21 TRAVEL SPEED IS SLOW......1370
H-22 STEERING DOES NOT TURN EASILY OR LACKS POWER......1372
H-23 TRAVEL SPEED DOES NOT SWITCH OR IS FASTER THAN SPECIFIED SPEED......1374
H-24 TRAVEL DOES NOT MOVE (ONE SIDE ONLY)......1374
H-25 DOES NOT SWING......1375
a) DOES NOT SWING TO EITHER LEFT OR RIGHT......1375
b) DOES NOT SWING IN ONE DIRECTION......1375
H-26 SWING ACCELERATION IS POOR OR SWING SPEED IS SLOW......1376
a) SWING ACCELERATION IS POOR......1376
H-27 EXCESSIVE OVERRUN WHEN STOPPING SWING......1378
a) ONE DIRECTION ONLY......1378
b) BOTH DIRECTIONS......1378
H-28 EXCESSIVE SHOCK WHEN STOPPING SWING (ONE DIRECTION ONLY)......1379
H-29 EXCESSIVE ABNORMAL NOISE WHEN STOPPING SWING......1379
H-30 EXCESSIVE HYDRAULIC DRIFT OF SWING......1380
a) WHEN SWING HOLDING BRAKE IS RELEASED......1380
b) WHEN SWING HOLDING BRAKE IS APPLIED......1380
H-31 SWING SPEED IS FASTER THAN SPECIFIED SWING SPEED......1381
TROUBLESHOOTING OF MACHINE MONITOR SYSTEM (M MODE)......1382
ACTION TAKEN BY MONITOR PANEL WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE......1384
ELECTRICAL CIRCUIT DIAGRAM FOR M MODE SYSTEM......1386
M-1 [E101] ABNORMALITY IN ERROR DATA IS DISPLAYED, E[102] ERROR IN CLOCK DATA IS DISPLAYED......1390
M-2 [E103] SHORT CIRCUIT IN BUZZER OUTPUT OR CONTACT OF 24V WIRING HARNESS WITH BUZZER DRIVE HARNESS IS DISPLAYED......1391
M-3 [E104] AIR CLEANER CLOGGING DETECTED IS DISPLAYED......1392
M-4 [E106] DROP IN ENGINE OIL HI PRESSURE DETECTED IS DISPLAYED......1392
M-5 [E108] ENGINE WATER TEMPERATURE 105 DETECTED IS DISPLAYED......1393
M-6 WHEN STARTING SWITCH IS TURNED ON, NONE OF LAMPS ON MONITOR PANEL LIGHT UP FOR 3 SECONDS......1394
a) NONE OF LAMPS ON MONITOR PANEL LIGHT UP......1394
b) SOME OF LAMPS ON MONITOR PANEL DO NOT LIGHT UP......1394
M-7 WHEN STARTING SWITCH IS TURNED ON, MONITOR PANEL LAMPS ALL STAY LIGHTED UP AND DO NOT GO OUT......1396
M-8 WHEN STARTING SWITCH IS TURNED ON, ITEMS LIGHTED UP ON MONITOR PANEL ARE DIFFERENT FROM ACTUAL MACHINE (MODEL)......1396
M-9 WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED), BASIC CHECK ITEMS FLASH......1397
a) (COOLANT LEVEL) FLASHES......1397
b) (ENGINE OIL LEVEL) FLASHES......1398
c) (HYDRAULIC OIL LEVEL) FLASHES......1399
M-10 PREHEATING IS NOT BEING USED BUT (PREHEATING MONITOR) LIGHTS UP......1400
M-11 WHEN STARTING SWITCH IS TURNED ON AND ENGINE IS STARTED, BASIC CHECK ITEMS FLASH......1401
a) ALTERNATOR SYSTEM......1401
b) ENGINE OIL PRESSURE SYSTEM......1402
M-12 WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED), CAUTION ITEMS, EMERGENCY ITEMS FLASH......1403
a) ALTERNATOR SYSTEM......1403
b) ENGINE OIL PRESSURE SENSOR SYSTEM......1404
M-13 WHEN STARTING SWITCH IS TURNED ON AND ENGINE IS STARTED, CAUTION ITEMS, EMERGENCY ITEMS FLASH......1405
a) (ENGINE OIL PRESSURE) FLASHES......1405
b) (COOLANT LEVEL) FLASHES......1405
c) (BATTERY CHARGE) FLASHES......1405
d) (COOLANT TEMPERATURE) FLASHES......1406
e) (FUEL LEVEL) FLASHES......1406
f) (AIR CLEANER CLOGGING) FLASHES ......1407
M-14 WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED), BUZZER DOES NOT SOUND FOR 1 SECOND CAUTION ITEM FLASHES BUT BUZZER DOES NOT SOUND......1408
M-15 NO ABNORMALITY IS DISPLAYED ON MONITOR BUT BUZZER SOUNDS......1408
M-16 NIGHT LIGHTING ON MONITOR PANEL DOES NOT LIGHT UP (LIQUID CRYSTAL DISPLAY IS NORMAL)......1409
M-17 COOLANT TEMPERATURE GAUGE DOES NOT RISE......1410
M-18 COOLANT TEMPERATURE GAUGE DOES NOT GIVE ANY DISPLAY......1410
M-19 FUEL LEVEL GAUGE ALWAYS DISPLAYS FULL......1411
M-20 FUEL LEVEL GAUGE DOES NOT GIVE DISPLAY......1411
M-21 SWING LOCK SWITCH IS TURNED ON (LOCK) BUT (SWING LOCK MONITOR) DOES NOT LIGHT UP......1412
M-22 SWING PROLIX SWITCH IS TURNED ON (PROLIX), BUT (SWING LOCK MONITOR) DOES NOT FLASH......1412
M-23 SERVICE METER DOES NOT ADVANCE WHILE ENGINE IS RUNNING......1413
M-24 WHEN STARTING SWITCH IS AT OFF AND TIME SWITCH IS PRESSED, TIME AND SERVICE METER ARE NOT DISPLAYED......1413
M-25 DEFECTIVE FUEL LEVEL SENSOR SYSTEM......1414
M-26 DEFECTIVE COOLANT TEMPERATURE SENSOR SYSTEM......1415
M-27 DEFECTIVE ENGINE OIL LEVEL SENSOR SYSTEM......1416
M-28 DEFECTIVE COOLANT LEVEL SENSOR SYSTEM......1417
M-29 DEFECTIVE HYDRAULIC OIL LEVEL SENSOR SYSTEM......1418
M-30 WIPER DOES NOT WORK, OR SWITCH IS NOT BEING USED BUT WIPER IS ACTUATED (INCLUDE E112, E113)......1419
a) WIPER DOES NOT WORK......1419
b) WIPER SWITCH IS NOT BEING OPERATED BUT WIPER IS ACTUATED......1424
M-31 WASHER MOTOR DOES NOT WORK, OR SWITCH IS NOT BEING USED BUT WASHER MOTOR IS ACTUATED (INCLUDE E114)......1425
a) WASHER MOTOR DOES NOT WORK......1425
b) SWITCH IS NOT BEING OPERATED BUT WASHER IS ACTUATED......1426
M-32 ELECTRIC GREASE GUN DOES NOT WORK......1428
30 DISASSEMBLY AND ASSEMBLY......1429
METHOD OF USING MANUAL......1431
PRECAUTIONS WHEN CARRYING OUT OPERATION......1433
SPECIAL TOOL LIST......1435
SKETCHES OF SPECIAL TOOLS......1441
STARTING MOTOR ASSEMBLY......1449
REMOVAL AND INSTALLATION......1449
ALTERNATOR ASSEMBLY......1450
REMOVAL AND INSTALLATION......1450
ENGINE OIL COOLER ASSEMBLY......1451
REMOVAL AND INSTALLATION......1451
FUEL INJECTION PUMP ASSEMBLY......1452
REMOVAL......1452
INSTALLATION......1454
WATER PUMP ASSEMBLY......1455
REMOVAL AND INSTALLATION......1455
NOZZLE HOLDER ASSEMBLY......1456
REMOVAL AND INSTALLATION......1456
TURBOCHARGER ASSEMBLY......1457
REMOVAL AND INSTALLATION......1457
THERMOSTAT ASSEMBLY......1458
REMOVAL AND INSTALLATION......1458
ENGINE FRONT SEAL......1459
REMOVAL AND INSTALLATION......1459
ENGINE REAR SEAL......1460
REMOVAL......1460
INSTALLATION......1461
CYLINDER HEAD ASSEMBLY......1464
REMOVAL......1464
INSTALLATION......1468
GOVERNOR MOTOR ASSEMBLY......1471
REMOVAL......1471
INSTALLATION......1471
AFTERCOOLER CORE ASSEMBLY......1472
REMOVAL AND INSTALLATION......1472
HYDRAULIC COOLER ASSEMBLY......1473
REMOVAL......1473
INSTALLATION......1474
RADIATOR, HYDRAULIC COOLER ASSEMBLY......1475
REMOVAL......1475
INSTALLATION......1477
ENGINE, MAIN PUMP ASSEMBLY......1478
REMOVAL......1478
INSTALLATION......1481
DAMPER ASSEMBLY......1482
REMOVAL AND INSTALLATION......1482
FUEL TANK ASSEMBLY......1483
REMOVAL AND INSTALLATION......1483
CENTER SWIVEL JOINT ASSEMBLY......1484
REMOVAL AND INSTALLATION......1484
DISASSEMBLY AND ASSEMBLY......1486
FINAL DRIVE ASSEMBLY......1488
REMOVAL AND INSTALLATION......1488
DISASSEMBLY......1489
ASSEMBLY......1493
TRAVEL MOTOR ASSEMBLY......1499
DISASSEMBLY......1499
ASSEMBLY......1504
SPROCKET......1515
REMOVAL AND INSTALLATION......1515
SWING MOTOR ASSEMBLY......1516
REMOVAL AND INSTALLATION......1516
DISASSEMBLY......1517
ASSEMBLY......1520
SWING MACHINERY ASSEMBLY......1527
REMOVAL AND INSTALLATION......1527
DISASSEMBLY......1528
ASSEMBLY......1532
REVOLVING FRAME ASSEMBLY......1537
REMOVAL......1537
INSTALLATION......1538
SWING CIRCLE ASSEMBLY......1539
REMOVAL AND INSTALLATION......1539
IDLER, RECOIL SPRING ASSEMBLY......1540
REMOVAL AND INSTALLATION......1540
IDLER ASSEMBLY......1541
DISASSEMBLY......1541
ASSEMBLY......1542
RECOIL SPRING ASSEMBLY......1544
DISASSEMBLY......1544
ASSEMBLY......1545
TRACK ROLLER ASSEMBLY......1546
REMOVAL AND INSTALLATION......1546
DISASSEMBLY......1547
ASSEMBLY......1548
CARRIER ROLLER ASSEMBLY......1550
REMOVAL AND INSTALLATION......1550
DISASSEMBLY......1551
ASSEMBLY......1553
TRACK SHOE ASSEMBLY......1555
REMOVAL AND INSTALLATION......1555
HYDRAULIC TANK ASSEMBLY......1556
REMOVAL......1556
INSTALLATION......1557
MAIN PUMP ASSEMBLY......1558
REMOVAL......1558
INSTALLATION......1559
DISASSEMBLY......1560
ASSEMBLY......1566
MAIN PUMP INPUT SHAFT OIL SEAL......1581
REMOVAL AND INSTALLATION......1581
CONTROL VALVE ASSEMBLY......1582
REMOVAL......1582
INSTALLATION......1584
DISASSEMBLY......1585
ASSEMBLY......1591
PUMP MERGE/DIVIDER VALVE ASSEMBLY......1598
DISASSEMBLY AND ASSEMBLY......1598
PRESSURE COMPENSATION VALVE ASSEMBLY......1599
DISASSEMBLY AND ASSEMBLY......1599
SERVO VALVE ASSEMBLY FOR FRONT PUMP......1600
REMOVAL AND INSTALLATION......1600
SERVO VALVE ASSEMBLY FOR REAR PUMP......1601
REMOVAL AND INSTALLATION......1601
LS-EPC SOLENOID VALVE ASSEMBLY......1602
REMOVAL AND INSTALLATION......1602
SOLENOID VALVE ASSEMBLY......1603
REMOVAL AND INSTALLATION......1603
WORK EQUIPMENT PPC VALVE ASSEMBLY......1604
REMOVAL AND INSTALLATION......1604
DISASSEMBLY......1605
ASSEMBLY......1606
TRAVEL PPC VALVE ASSEMBLY......1607
REMOVAL AND INSTALLATION......1607
DISASSEMBLY......1608
ASSEMBLY......1609
PPC SHUTTLE VALVE ASSEMBLY......1610
REMOVAL......1610
INSTALLATION......1611
DISASSEMBLY......1612
ASSEMBLY......1613
BOOM LOCK VALVE ASSEMBLY......1614
REMOVAL AND INSTALLATION......1614
DISASSEMBLY AND ASSEMBLY......1615
BOOM CYLINDER ASSEMBLY......1616
REMOVAL......1616
INSTALLATION......1617
ARM CYLINDER ASSEMBLY......1618
REMOVAL......1618
INSTALLATION......1619
BUCKET CYLINDER ASSEMBLY......1620
REMOVAL......1620
INSTALLATION......1621
HYDRAULIC CYLINDER ASSEMBLY......1622
DISASSEMBLY......1622
ASSEMBLY......1625
WORK EQUIPMENT ASSEMBLY......1629
REMOVAL......1629
INSTALLATION......1630
BUCKET ASSEMBLY......1631
REMOVAL......1631
INSTALLATION......1632
ARM ASSEMBLY......1633
REMOVAL......1633
INSTALLATION......1634
BUCKET, ARM ASSEMBLY......1635
REMOVAL......1635
INSTALLATION......1636
BOOM ASSEMBLY......1637
REMOVAL......1637
INSTALLATION......1638
OPERATOR'S CAB ASSEMBLY......1639
REMOVAL......1639
INSTALLATION......1640
COUNTERWEIGHT ASSEMBLY......1641
REMOVAL AND INSTALLATION......1641
AIR CONDITIONER COMPRESSOR ASSEMBLY......1642
REMOVAL AND INSTALLATION......1642
CONDENSER ASSEMBLY......1643
REMOVAL AND INSTALLATION......1643
RECEIVER TANK ASSEMBLY......1644
REMOVAL AND INSTALLATION......1644
AIR CONDITIONER UNIT ASSEMBLY......1645
REMOVAL......1645
INSTALLATION......1646
GOVERNOR, PUMP CONTROLLER ASSEMBLY......1647
REMOVAL AND INSTALLATION......1647
MONITOR PANEL ASSEMBLY......1648
REMOVAL AND INSTALLATION......1648
CONTROL STAND CASE......1649
REMOVAL......1649
INSTALLATION......1650
40 MAINTENANCE STANDARD......1651
ENGINE MOUNT......1652
SWING MACHINERY......1653
SWING CIRCLE......1655
FINAL DRIVE......1657
SPROCKET......1659
TRACK FRAME AND RECOIL SPRING......1661
IDLER......1662
CARRIER ROLLER......1664
TRACK ROLLER......1665
TRACK SHOE......1666
HYDRAULIC PUMP......1670
CONTROL VALVE......1671
SELF-REDUCING PRESSURE VALVE......1678
SUCTION-SAFETY VALVE......1679
SWING MOTOR......1680
TRAVEL MOTOR......1681
WORK EQUIPMENTSWING PPC VALVE......1682
TRAVEL PPC VALVE ......1683
SERVICE PPC VALVE......1684
PPC SHUTTLE VALVE, TRAVEL JUNCTION VALVE......1685
LS-EPC VALVE......1686
SOLENOID VALVE......1687
CENTER SWIVEL JOINT......1688
BOOM HOLDING VALVE......1690
HYDRAULIC CYLINDER......1691
WORK EQUIPMENT......1694
DIMENSIONS OF WORK EQUIPMENT......1698
90 OTHERS......1702
HYDRAULIC CIRCUIT DIAGRAM ......1703
BACK HOE......1703
LOADING SHOVEL......1704
ELECTRIC CIRCUIT DIAGRAM ......1705
BACK HOE......1705
ELECTRIC CIRCUIT DIAGRAM (1/3) WITH POWER WINDOW......1705
ELECTRIC CIRCUIT DIAGRAM (2/3) WITH POWER WINDOW......1706
ELECTRIC CIRCUIT DIAGRAM (3/3) WITH POWER WINDOW......1707
ELECTRIC CIRCUIT DIAGRAM (1/3) PC400-6 SERIAL NO.: 32250 AND UP PC450-6 SERIAL NO.: 12144 AND UP WITHOUT POWER WINDOW ......1708
ELECTRIC CIRCUIT DIAGRAM (2/3) PC400-6 SERIAL NO.: 32250 AND UP PC450-6 SERIAL NO.: 12144 AND UP WITHOUT POWER WINDOW......1709
ELECTRIC CIRCUIT DIAGRAM (3/3) PC400-6 SERIAL NO.: 32250 AND UP PC450-6 SERIAL NO.: 12144 AND UP WITHOUT POWER WINDOW......1710
LOADING SHOVEL......1711
ELECTRIC CIRCUIT DIAGRAM (1/3)......1711
ELECTRIC CIRCUIT DIAGRAM (2/3)......1712
ELECTRIC CIRCUIT DIAGRAM (1/3)......1713
SEBM023600 - Hydraulic Excavator PC400-6, PC400LC-6, PC450-6, PC450LC-6 Shop Manual Supplement......1714
COVER......1714
CONTENTS......1715
GENERAL......1717
SPECIFICATIONS......1717
WEIGHT TABLE......1721
STRUCTURE AND FUNCTION......1725
RADIATOR, OIL COOLER......1725
POWER TRAIN......1726
TESTING AND ADJUSTING......1727
STANDARD VALUE TABLE FOR ENGINE RELATED PARTS......1727
STANDARD VALUE TABLE FOR ELECTRICAL PARTS......1728
MEASURING EXHAUST COLOR......1737
TESTING AND ADJUSTING FUEL INJECTION TIMING......1738
MEASURING AIR SUPPLY PRESSURE (BOOST PRESURE)......1741
DISASSEMBLY AND ASSEMBLY......1743
TURBOCHARGER ASSEMBLY......1743
CYLINDER HEAD ASSEMBLY......1744
AFTERCOOLER ASSEMBLY......1746
HYDRAULIC COOLER ASSEMBLY......1747
RADIATOR, HYDRAULIC COOLER ASSEMBLY......1749
SEBM033000 - Hydraulic Excavator PC400-7, PC400LC-7, PC450-7, PC450LC-7 Shop Manual......1752
CONTENTS......1753
No. of page......1753
01 GENERAL......1754
SPECIFICATION DRAWINGS 01- 2......1754
SPECIFICATIONS 01- 4......1754
WEIGHT TABLE 01- 8......1754
FUEL, COOLANT AND LUBRICANTS 01- 12......1754
SPECIFICATION DRAWINGS......1755
SPECIFICATIONS......1757
PC400-7, PC400LC-7......1757
: The Mi mode is on the multi-monitor specification machine only......1757
PC450-7, PC450LC-7......1759
: The Mi mode is on the multi-monitor specification machine only......1759
WEIGHT TABLE......1761
PC400-7, PC400LC-7......1761
k This weight table is for use when handling components or when transporting the machine......1761
Unit: kg......1761
PC450-7, PC450LC-7......1763
Unit: kg......1763
FUEL, COOLANT AND LUBRICANTS......1765
10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD......1766
ENGINE RELATED PARTS......1767
1. Drive plate......1767
2. Torsion spring......1767
3. Stopper pin......1767
4. Friction plate......1767
5. Damper assembly......1767
6. Muffler......1767
7. Rear engine mount......1767
8. Front engine mount......1767
RADIATOR OIL COOLER AFTERCOOLER......1768
1. Oil cooler......1768
2. Radiator......1768
3. Radiator cap......1768
4. Reservoir tank......1768
5. Net......1768
6. Shroud......1768
7. Radiator inlet hose......1768
8. Radiator outlet hose......1768
9. Aftercooler......1768
10. Condenser......1768
11. Fuel cooler......1768
POWER TRAIN......1769
1. Idler......1769
2. Center swivel joint......1769
3. Control valve......1769
4. Final drive......1769
5. Travel motor (KMV 200ADT-2)......1769
6. Engine (SAA6D125-3E)......1769
7. Hydraulic pump (HPV190+190)......1769
8. Travel speed solenoid valve......1769
9. Swing brake solenoid valve......1769
10. Swing machinery......1769
11. Swing motor (KMF230ABE-5)......1769
12. Swing circle......1769
FINAL DRIVE......1771
1. Level plug......1772
2. Drain plug......1772
3. No. 1 planetary gear (No. of teeth: 43)......1772
4. No. 1 sun gear (No. of teeth: 10)......1772
5. No. 2 sun gear (No. of teeth: 18)......1772
6. No. 1 planetary carrier......1772
7. No. 2 planetary carrier......1772
8. Cover......1772
9. Ring gear (No. of teeth: 98)......1772
10. Sprocket......1772
11. Floating seal......1772
12. Travel motor......1772
13. No. 2 planetary gear (No. of teeth: 38)......1772
SWING MACHINERY......1773
1. Swing pinion (No. of teeth: 13)......1774
2. Cover......1774
3. Case......1774
4. No. 2 planetary gear......1774
5. No. 2 sun gear......1774
6. Ring gear......1774
7. No. 1 sun gear......1774
8. Swing motor......1774
9. Oil level gauge......1774
10. No. 1 planetary gear......1774
11. No. 1 planetary carrier......1774
12. No. 2 planetary carrier......1774
13. Drain plug......1774
SWING CIRCLE......1775
1. Swing circle inner race (No. of teeth: 84)......1775
2. Ball......1775
3. Swing circle outer race......1775
a. Inner race soft zone S position......1775
b. Outer race soft zone S position......1775
TRACK FRAME AND RECOIL SPRING......1777
1. Idler......1777
2. Track frame......1777
3. Carrier roller......1777
4. Final drive......1777
5. Track roller......1777
6. Track shoe......1777
7. Center guard......1777
8. Recoil spring......1777
9. Front guard......1777
IDLER......1779
CARRIER ROLLER......1781
TRACK ROLLER......1782
TRACK SHOE......1783
TRACK SHOE......1783
TRIPLE GROUSER SHOE......1786
HYDRAULIC PIPING DRAWING......1787
1. Bucket cylinder......1787
2. Arm cylinder......1787
3. Boom cylinder......1787
4. Swing motor......1787
5. Control valve......1787
6. Oil cooler......1787
7. Hydraulic filter......1787
8. Hydraulic pump......1787
9. L.H. travel motor......1787
10. Hydraulic tank......1787
11. Multi-pattern selector valve......1787
12. L.H. PPC valve......1787
13. Safety lever (electric type)......1787
14. Center swivel joint......1787
15. R.H. PPC valve......1787
16. Travel PPC valve......1787
17. Attachment circuit selector valve......1787
18. Holding valve......1787
19. Accumulator......1787
20. Solenoid valve assembly......1787
HYDRAULIC TANK......1789
1. Oil filler cap......1789
2. Breather......1789
3. Hydraulic tank......1789
4. Sight gauge......1789
5. Strainer......1789
6. Filter element......1789
7. Strainer......1789
8. Bypass valve......1789
HYDRAULIC PUMP......1791
1. Front main pump......1791
2. Rear main pump......1791
3. LS valve......1791
4. PC valve......1791
5. LS-EPC valve......1791
6. PC-EPC valve......1791
7. Variable volume valve......1791
1. Shaft (Front)......1792
2. Cradle......1792
3. Case (Front)......1792
4. Rocker cam......1792
5. Shoe......1792
6. Piston......1792
7. Cylinder block......1792
8. Valve plate......1792
9. End cap......1792
10. Shaft (Rear)......1792
11. Case (Rear)......1792
12. Servo piston......1792
1) Operation of pump......1794
i Cylinder block (7) rotates together with shaft (1), and shoe (5) slides on flat surface A. When.......1794
ii Center line X of rocker cam (4) maintains swash plate angle in relation to the axial direction.......1794
iii If center line X of rocker cam (4) is in line with the axial direction of cylinder block (7) .......1794
2) Control of discharge amount......1795
1. Plug......1796
2. Locknut......1796
3. Sleeve......1796
4. Spring......1796
5. Seat......1796
6. Spool......1796
7. Piston......1796
8. Sleeve......1796
1. Servo piston assembly......1796
2. Plug......1796
3. Pin......1796
4. Spool......1796
5. Retainer......1796
6. Seat......1796
7. Cover......1796
8. Wiring......1796
1) When control valve is at neutral position......1798
2) Operation in increase direction for pump discharge amount......1799
3) Operation in decrease direction for pump discharge amount......1800
4) When servo piston is balanced......1801
1) When pump controller is normal......1802
a. When the load on the actuator is small and pump pressures PP1 and PP2 are low......1802
b. When load on actuator is large and pump discharge pressure is high......1805
2) When pump controller is abnormal and emergency pump drive switch is ON......1807
a. When load on main pump is light......1807
b. When main pump load is heavy......1808
LS(pc)-EPC VALVE......1809
1. Body......1809
2. Spool......1809
3. Spring......1809
4. Rod......1809
5. Coil......1809
6. Plunger......1809
7. Connector......1809
1. When signal current is 0 (coil de-energized)......1810
2. When signal current is very small (coil energized)......1811
3. When signal current is maximum (coil energized)......1811
variable volume valve......1812
1. Block......1812
2. Plug......1812
3. Spring......1812
4. Piston......1812
CONTROL VALVE......1815
1. 6-spool valve......1815
2. Cover 1......1815
3. Cover 2......1815
4. Pump merge-divider valve......1815
5. Back pressure valve......1815
6. Boom lock valve......1815
7. Boom, arm Hi valve......1815
8. Quick return valve......1815
9. Boom Hi check valve......1815
1. Unload valve......1818
2. Pressure compensation valve (Arm OUT)......1818
3. Pressure compensation valve (Right travel reverse)......1818
4. Pressure compensation valve (Left swing)......1818
5. Pressure compensation valve (Boom RAISE)......1818
6. Pressure compensation valve (Left travel reverse)......1818
7. Pressure compensation valve (Bucket CURL)......1818
8. Pressure compensation valve (Boom RAISE)......1818
9. Pressure compensation valve (Arm IN)......1818
10. Pressure compensation valve (Bucket DUMP)......1818
11. Pressure compensation valve (Left travel forward)......1818
12. Pressure compensation valve (Boom LOWER)......1818
13. Pressure compensation valve (Right swing)......1818
14. Pressure compensation valve (Right travel forward)......1818
15. Pressure compensation valve (Arm IN)......1818
16. Main relief valve......1818
1. Spool (Arm)......1819
2. Spool (Right travel)......1819
3. Spool (Swing)......1819
4. Spool (Boom)......1819
5. Spool (Left travel)......1819
6. Spool (Bucket)......1819
7. Spool (Boom Hi)......1819
8. Spool (Arm Hi)......1819
9. Unload valve......1819
10. Main relief valve......1819
1. Safety-suction valve (Arm OUT)......1820
2. Suction valve (Right travel reverse)......1820
3. Suction valve (Boom RAISE)......1820
4. Suction valve (Left travel reverse)......1820
5. Safety-suction valve (Boom Hi)......1820
6. Safety-suction valve (Arm IN)......1820
7. Safety-suction valve (Bucket DUMP)......1820
8. Suction valve (Left travel forward)......1820
9. Safety-suction valve (2-stage) (Boom LOWER)......1820
10. Suction valve (Right travel forward)......1820
11. Safety-suction valve (Arm IN)......1820
12. LS shuttle valve (Arm, right travel)......1820
13. LS select valve......1820
14. LS shuttle valve (Boom, left travel, bucket)......1820
15. LS check valve......1820
16. Pressure relief plug......1820
1. Unload valve......1821
2. Main relief valve......1821
3. Safety valve (Boom RAISE)......1821
4. Lift check valve......1821
5. Safety-suction valve......1821
6. Spool......1821
7. Pressure compensation valve (OUT)......1821
8. LS shuttle valve......1821
9. Pressure compensation valve (IN)......1821
10. Safety-suction valve......1821
11. Check valve for regeneration circuit......1821
12. Suction valve......1821
13. Spool......1821
14. Pressure compensation valve (Reverse)......1821
15. LS shuttle valve......1821
16. Pressure compensation valve (Forward)......1821
17. Suction valve......1821
1. Spool......1823
2. Pressure compensation valve (Left)......1823
3. LS select valve......1823
4. Pressure compensation valve (Right)......1823
5. Suction valve......1823
6. Spool......1823
7. Pressure compensation valve (RAISE)......1823
8. Hydraulic drift prevention valve......1823
9. LS shuttle valve......1823
10. Pressure compensation valve (Lower)......1823
11. Safety-suction valve......1823
12. Check valve for regeneration circuit......1823
13. Pump merge-divider valve (Travel junction valve)......1823
14. Return spring......1823
15. Suction valve......1823
16. Spool......1823
17. Pressure compensation valve (Reverse)......1823
18. LS shuttle valve......1823
19. Pressure compensation valve (Forward)......1823
20. Suction valve......1823
1. Safety-suction valve......1825
2. Spool......1825
3. Pressure compensation valve (CURL)......1825
4. LS shuttle valve......1825
5. Pressure compensation valve (DUMP)......1825
6. Safety-suction valve......1825
7. Boom Hi spool......1825
8. Pressure compensation valve (Boom RAISE)......1825
9. Boom Hi check valve......1825
10. Quick-return valve......1825
11. Pressure compensation valve (Arm IN)......1825
12. Arm Hi spool......1825
13. Safety-suction valve......1825
1. Unload valve......1827
2. Main relief valve......1827
3. Pump merge-divider valve (Main)......1827
4. Return spring......1827
5. Pump merge-divider valve (For LS)......1827
6. Return spring......1827
7. Valve (Sequence valve)......1827
8. Spring (Sequence valve)......1827
9. LS bypass plug......1827
10. Screw......1827
11. Poppet......1827
12. Spring (Pressure reducing valve pilot)......1827
13. Spring (Pressure reducing valve main)......1827
14. Valve (Pressure reducing valve)......1827
15. Spring (Safety valve)......1827
16. Ball......1827
MAIN RELIEF VALVE......1829
1. Spring......1829
2. Poppet......1829
1. When pilot pressure P is OFF: Low-pressure setting The set pressure is determined by the insta.......1829
2. When pilot pressure P is ON: High-pressure setting In addition to the installed load of spring.......1829
CLSS......1831
OUTLINE OF CLSS......1831
1) Fine control not influenced by load......1831
2) Control enabling digging even with fine control......1831
3) Ease of compound operation ensured by flow divider function using area of opening of spool dur.......1831
4) Energy saving using variable pump control......1831
1) Control of pump swash plate......1832
2) Pressure compensation......1833
SELF PRESSURE REDUCING VALVE......1834
1. When engine is stopped......1834
2. When in neutral or load pressure P2 is low (When boom is lowered and arm is in IN position and.......1835
3. When load pressure P2 is high......1835
4. When abnormally high pressure is generated......1836
SWING MOTOR......1837
1. Brake spring......1839
2. Drive shaft......1839
3. Spacer......1839
4. Case......1839
5. Disc......1839
6. Plate......1839
7. Brake piston......1839
8. Housing......1839
9. Piston......1839
10. Cylinder block......1839
11. Valve plate......1839
12. Reverse prevention valve......1839
13. Center shaft......1839
14. Center spring......1839
15. Safety valve......1839
16. Check valve......1839
17. Shuttle valve......1839
RELIEF VALVE......1841
1. Outline......1841
2. Function......1841
3. Operation......1841
1) When starting swing......1841
2) When stopping swing......1841
1. When swing lock solenoid valve is deactivated......1842
2. When swing lock solenoid valve is excited......1842
1. Valve body......1843
2. Spool (MA side)......1843
3. Spring (MA side)......1843
4. Plug......1843
5. Spool (MB side)......1843
6. Spring (MB side)......1843
7. Plug......1843
1. When brake pressure is being generated at port MB......1844
2. After motor stops......1844
CENTER SWIVEL JOINT......1845
1. Cover......1845
2. Body......1845
3. Slipper seal......1845
4. O-ring......1845
5. Shaft......1845
TRAVEL MOTOR......1847
1. Output shaft......1848
2. Motor case......1848
3. Piston......1848
4. Cylinder......1848
5. Valve plate......1848
6. End cover......1848
7. Slow return valve......1848
8. Regulator piston......1848
9. Plate......1848
10. Disc......1848
11. Check valve spring......1848
12. Check valve......1848
13. Counterbalance valve......1848
14. Spool return spring......1848
15. Safety valve......1848
16. Rgegulator valve......1848
17. Spring......1848
18. Brake spring......1848
19. Brake piston......1848
20. Check valve......1848
1) At low speed (motor swash plate angle at maximumu)......1850
2) At high speed (motor swash plate angle at minimum)......1851
PARKING BRAKE......1852
1. When starting to travel......1852
2. When stopping travel......1853
1) Counterbalance valve, check valve......1854
2) Safety valve (2-direction operation, 2-stage set safety valve)......1855
1) When pressure in chamber MB has become high (when rotating clockwise)......1856
2) When stopping travel (low-pressure setting)......1856
3) When pressure in chamber MA has become high (when rotating counterclockwise)......1857
1) When starting travel (high-pressure setting)......1857
TRAVEL JUNCTION VALVE......1858
VALVE CONTROL......1860
1. Travel PPC valve......1860
2. Service PPC valve......1860
3. Service pedal......1860
4. L.H. travel lever......1860
5. R.H. travel lever......1860
6. R.H. PPC valve......1860
7. R.H. work equipment control lever......1860
8. Solenoid valve......1860
9. Accumulator......1860
10. Control valve......1860
11. Hydraulic pump......1860
12. Junction box......1860
13. L.H. work equipment control lever......1860
14. L.H. PPC valve......1860
TRAVEL PPC SHUTTLE VALVE......1861
1. When travel is at neutral......1861
2. When travel is operated......1863
WORK EQUIPMENT SWING PPC VALVE......1865
1. Spool......1866
2. Metering spring......1866
3. Centering spring......1866
4. Piston......1866
5. Disc......1866
6. Nut (For connection of lever)......1866
7. Joint......1866
8. Plate......1866
9. Retainer......1866
10. Body......1866
11. Filter......1866
1) At neutral......1867
2) During fine control (neutral o fine control)......1867
3) During fine control (when control lever is returned)......1868
4) At full stroke......1868
TRAVEL PPC VALVE......1869
1. Plate......1870
2. Body......1870
3. Piston......1870
4. Collar......1870
5. Metering spring......1870
6. Centering spring......1870
7. Valve......1870
8. Damper......1870
9. Steering signal......1870
10. Steering signal valve spring......1870
1. While in NEUTRAL......1872
2. While travelling straight......1873
3. When steered or pivot-turned......1874
4. When pivot-turned......1875
SERVICE PPC VALVE......1876
1. Spool......1876
2. Metering spring......1876
3. Centering spring......1876
4. Piston......1876
5. Lever......1876
6. Plate......1876
7. Retainer......1876
8. Body......1876
SOLENOID VALVE......1877
1. PPC lock solenoid valve......1877
2. Travel junction solenoid valve......1877
3. Merge-divider solenoid valve......1877
4. Travel speed solenoid valve......1877
5. Swing brake solenoid valve......1877
6. Machine push-up solenoid valve......1877
8. 2-stage relief solenoid valve......1877
1. Connector......1878
2. Moving core......1878
3. Coil......1878
4. Spool......1878
5. Block......1878
6. Spring......1878
PPC ACCUMULATOR......1879
1. Gas plug......1879
2. Shell......1879
3. Poppet......1879
4. Holder......1879
5. Bladder......1879
6. Oil port......1879
return oil filter......1880
For Breaker......1880
1. Drain plug......1880
2. Element......1880
3. Case......1880
4. Head cover......1880
5. Relief valve......1880
BOOM HYDRAULIC DRIFT PREVENTION VALVE......1881
1. Boom RAISE......1881
2. Boom at HOLD......1883
3. Boom LOWER......1885
ARM HYDRAULIC DRIFT PREVENTION VALVE......1886
(If equipped)......1886
1. Arm DUMP......1886
2. Arm at HOLD......1887
3. Arm IN......1888
4. When abnormally high pressure is generated......1889
quick return valve......1890
1. Arm at OUT......1890
2. Arm at HOLD......1891
LIFT CHECK VALVE......1892
1. While engine is stopped......1892
2. While engine is running......1892
attachment circuit selector valve......1893
1. Spool......1893
2. Spring......1893
1. When attachment other than breaker is installed......1894
2. When breaker is installed......1894
HOLDING VALVE......1895
1. Pilot spool......1896
2. Spring (1st stage of spool)......1896
3. Spring (2nd stage of spool)......1896
4. Safety valve......1896
5. Check valve......1896
6. Spring......1896
1. When the work equipment is in neutral......1897
2. When oil is sent from main valve to cylinder......1898
3. When oil is returned from work equipment cylinder to main valve......1899
HYDRAULIC CYLINDER......1901
BOOM CYLINDER......1901
ARM CYLINDER......1901
BUCKET CYLINDER......1901
WORK EQUIPMENT......1903
1. Dimension of arm......1905
2. Dimension of bucket......1907
AIR CONDITIONER......1909
AIR CONDITIONER PIPING......1909
1. Hot water pickup piping......1909
2. Receiver tank......1909
3. Hot water return piping......1909
4. Condenser......1909
5. Air conditioner compressor......1909
6. Refrigerant piping......1909
7. Air conditioner unit......1909
8. Duct......1909
A. Fresh air......1909
B. Recirculated air......1909
C. Hot air/cold air......1909
ENGINE CONTROL......1910
1. Operation of system......1910
2. Components of system......1911
1. Knob......1911
2. Dial......1911
3. Spring......1911
4. Ball......1911
5. Potentiometer......1911
6. Connector......1911
3. Engine controller......1912
ELECTRONIC CONTROL SYSTEM......1916
CONTROL FUNCTIONS......1916
TOTAL SYSTEM DIAGRAM......1917
1. Engine and Pump control function......1919
1) Control method in each mode Mode A, Mode E......1921
2) Function to control pump during travel......1923
3) Function to control when emergency pump drive switch is turned ON......1923
2. Pump/Valve control function......1924
1) LS control function......1925
2) Cut-off function......1925
1) 2-stage relief function......1925
3. One-touch power maximizing/machine push-up function......1926
1) One-touch power maximizing function......1927
2) Machine push-up function......1927
4. Auto-deceleration function......1928
5. Auto-warm-up/Overheat prevention function......1930
1) Auto-warm-up function......1931
2) Overheat prevention function......1931
6. Swing control function......1932
1) Swing lock and swing holding brake functions......1933
2) Quick hydraulic oil warm-up function when swing lock switch is turned on......1933
7. Travel control function......1934
1) Pump control function during travel......1935
1. Travel speed change function......1935
i) Manual change with travel speed switch......1935
ii) Automatic change according to engine speed......1935
iii) Automatic changes according to pump discharge pressure......1935
8. ATT flow control, circuit selector function (if equipment)......1936
1) It throttles the ATT PPC pressure and controls the flow when the pedal is depressed fully......1936
2) In mode B and the other modes, it switches to ATT single acting (B) or double acting (other mo.......1936
9. System component parts......1937
1) Engine revolution sensor......1937
1. Sensor......1937
2. Locknut......1937
3. Wiring harness......1937
4. Connector......1937
2) PPC oil pressure switch......1938
1. Plug......1938
2. Switch......1938
3. Connector......1938
3) Pump pressure sensor......1939
1. Sensor......1939
2. Connector......1939
Pump controller......1940
Input and output signals......1941
MONITOR SYSTEM......1943
1. Monitor section to output alarms when the machine has troubles......1943
2. Gauge section to display the condition constantly (Coolant temperature, hydraulic oil temperat.......1943
1. Monitor panel......1944
1. Wiper motor......1946
2. Preheating monitor......1946
3. Swing lock monitor......1946
4. Engine water temperature monitor......1946
5. Hydraulic oil temperature gauge......1946
6. Engine water temperature gauge......1946
7. Working mode monitor......1946
8. Service monitor......1946
9. Travel speed monitor......1946
10. Fuel gauge......1946
11. Fuel level monitor......1946
12. Hydraulic oil temperature monitor......1946
13. Power max. monitor......1946
14. Auto-deceleration monitor......1946
15. Radiator water level caution......1946
16. Battery charge caution......1946
17. Engine oil pressure caution......1946
18. Engine oil level caution......1946
19. Air cleaner clogging......1946
20. Maintenance time warning caution......1946
1. Selector switch......1951
2. Selector switch......1951
3. Display brightness, contrast adjustment switch......1951
4. Control switch......1951
5. Window washer switch......1951
6. Wiper switch......1951
7. Maintenance switch......1951
8. Travel speed selector switch......1951
9. Auto-deceleration switch......1951
1. A mode, E mode......1954
1) Press select switch (1) on the monitor to move to the adjustment screen......1954
2) Press control switch (2) to select the flow level......1954
3) After completing the level selection, press input confirmation switch (3)......1954
2. B mode......1955
1) Press select switch (1) on the monitor to move to the screen for selecting the 3-stage flow le.......1955
2) Press control switch (2), or input [01] [03] with the numeral 10-key pad to choose one on th.......1955
3) After completing the level selection, press input confirmation switch (3)......1955
4) After the flow level is confirmed, the screen changes to the screen shown in the diagram on th.......1955
5) Press control switch (2) and select the flow level......1955
6) After completing the level selection, press input confirmation switch (3)......1956
7) Check the set value with the working mode monitor......1956
MAINTENANCE FUNCTION......1957
Method of checking status maintenance items......1958
1. Press maintenance switch (1) and switch to the maintenance list display screen......1958
2. Press control switch (2), or use the 10-key pad to input the number (01 10) of the maintenan.......1958
maintenance operation......1958
1. After completing the selection, press input confirmation switch (3)......1958
2. Use the maintenance reset screen to check the content, and if there is any problem, press inpu.......1958
3. Check the content on the check screen, and if there is no problem, press input confirmation sw.......1958
brightness, contrast adjustment function......1959
Adjustment method......1959
1. Press display brightness/contrast adjustment switch (1) and switch to the adjustment screen......1959
2. Press control switch (2), or use the 10-key pad to input the number (00 02) to select either.......1959
3. Press control switch (2) and adjust the brightness and contrast as desired......1959
service meter check function......1960
display lcd check function......1960
user code display function......1961
SENSOR......1963
1. Connector......1964
2. Bracket......1964
3. Float......1964
4. Switch......1964
1. Plug......1964
2. Contact ring......1964
3. Contact......1964
4. Diaphragm......1964
5. Spring......1964
6. Terminal......1964
1. Thermistor......1964
2. Body......1964
3. Tube......1964
4. Tube......1964
5. Wire......1964
6. Connector......1964
1. Float......1965
2. Connector......1965
3. Cover......1965
4. Variable resistor......1965
90 OTHERS......1966
HYDRAULIC CIRCUIT DIAGRAM (1/2) 90- 3......1966
HYDRAULIC CIRCUIT DIAGRAM (2/2) 90- 5......1966
ELECTRICAL CIRCUIT DIAGRAM (1/5) 90- 7......1966
ELECTRICAL CIRCUIT DIAGRAM (2/5) 90- 9......1966
ELECTRICAL CIRCUIT DIAGRAM (3/5) 90- 11......1966
ELECTRICAL CIRCUIT DIAGRAM (4/5) 90- 13......1966
ELECTRICAL CIRCUIT DIAGRAM (5/5) 90- 15......1966
AIR CONDITIONER ELECTRICAL CIRCUIT 90- 17......1966
SEBM033007 - Hydraulic Excavator PC400-7, PC400LC-7, PC450-7, PC450LC-7 Shop Manual......1968
COVER......1968
CONTENTS......1969
01 GENERAL......1995
SPECIFICATION DRAWINGS......1996
SPECIFICATIONS......1998
WEIGHT TABLE......2002
FUEL, COOLANT AND LUBRICANTS......2006
10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD......2007
ENGINE RELATED PARTS......2008
RADIATOROIL COOLERAFTERCOOLER......2009
POWER TRAIN......2010
FINAL DRIVE......2011
SPROCKET......2013
SWING MACHINERY......2015
SWING CIRCLE......2017
TRACK FRAME AND RECOIL SPRING......2018
IDLER......2020
CARRIER ROLLER......2022
TRACK ROLLER......2023
TRACK SHOE......2024
HYDRAULIC PIPING DRAWING......2028
HYDRAULIC TANK......2030
HYDRAULIC PUMP......2031
LS(PC)-EPC VALVE......2049
VARIABLE VOLUME VALVE......2052
CONTROL VALVE......2054
MAIN RELIEF VALVE......2067
CLSS......2068
SELF PRESSURE REDUCING VALVE......2071
SWING MOTOR......2074
REVERSAL PREVENTION VALVE......2079
CENTER SWIVEL JOINT......2081
TRAVEL MOTOR......2082
TRAVEL JUNCTION VALVE......2093
VALVE CONTROL......2095
TRAVEL PPC SHUTTLE VALVE......2096
WORK EQUIPMENTSWING PPC VALVE......2100
TRAVEL PPC VALVE......2104
SERVICE PPC VALVE......2111
SOLENOID VALVE......2112
PPC ACCUMULATOR......2114
RETURN OIL FILTER......2115
BOOM HYDRAULIC DRIFT PREVENTION VALVE......2116
ARM HYDRAULIC DRIFT PREVENTION VALVE......2121
QUICK RETURN VALVE......2125
LIFT CHECK VALVE......2127
ATTACHMENT CIRCUIT SELECTOR VALVE......2128
HOLDING VALVE......2130
HYDRAULIC CYLINDER......2135
WORK EQUIPMENT......2137
AIR CONDITIONER......2143
ENGINE CONTROL......2144
ELECTRONIC CONTROL SYSTEM......2149
MONITOR SYSTEM......2176
7-SEGMENT MONITOR SYSTEM......2196
SENSOR......2203
20 TESTING AND ADJUSTING......2206
STANDARD VALUE TABLE FOR ENGINE......2207
STANDARD VALUE TABLE FOR CHASSIS......2208
TESTING AND ADJUSTING......2217
TESTING, ADJUSTING, AND TROUBLESHOOTING TOOLS TABLE......2218
MEASURING ENGINE SPEED......2220
MEASURING INTAKE AIR PRESSURE (BOOST PRESSURE)......2221
MEASURING EXHAUST TEMPERATURE......2222
MEASURING EXHAUST GAS COLOR......2223
ADJUSTING VALVE CLEARANCE......2224
MEASURING COMPRESSION PRESSURE......2226
MEASURING BLOW-BY PRESSURE......2228
MEASURING ENGINE OIL PRESSURE......2229
HANDLING OF FUEL SYSTEM DEVICES......2230
RELEASING RESIDUAL PRESSURE FROM FUEL SYSTEM......2230
MEASURING FUEL PRESSURE......2231
BLEEDING AIR FROM FUEL CIRCUIT......2232
INSPECTION OF FUEL CIRCUIT FOR LEAKAGE......2234
ADJUSTING ENGINE SPEED SENSOR......2235
TESTING AND ADJUSTING FAN BELT AND ALTERNATOR BELT TENSION......2236
TESTING AND ADJUSTING AIR CONDITIONER COMPRESSOR BELT TENSION......2237
MEASURING CLEARANCE OF SWING CIRCLE BEARING......2238
TESTING AND ADJUSTING TRACK SHOE TENSION......2239
TESTING AND ADJUSTING OIL PRESSURE IN WORK EQUIPMENT, SWING, AND TRAVEL CIRCUITS......2240
MEASURING BASIC PRESSURE IN CONTROL CIRCUIT......2244
TESTING AND ADJUSTING OIL PRESSURE IN PUMP PC CONTROL CIRCUIT......2245
TESTING AND ADJUSTING OIL PRESSURE IN PUMP LS CONTROL CIRCUIT......2248
MEASURING SOLENOID VALVE OUTPUT PRESSURE......2253
MEASURING PPC VALVE OUTPUT PRESSURE......2256
ADJUSTING PLAY OF WORK EQUIPMENT AND SWING PPC VALVES......2258
TESTING PARTS WHICH CAUSE HYDRAULIC DRIFT OF WORK EQUIPMENT......2259
RELEASING RESIDUAL PRESSURE IN HYDRAULIC CIRCUIT......2261
MEASURING OIL LEAKAGE......2262
BLEEDING AIR FROM EACH PART......2265
TESTING PROCEDURE OF DIODE......2268
SPECIAL FUNCTIONS OF MONITOR PANEL......2269
SPECIAL FUNCTIONS OF 7-SEGMENTS MONITOR PANEL......2296
HANDLING OF HIGH-VOLTAGE CIRCUIT OF ENGINE CONTROLLER......2312
PREPARATION WORK FOR TROUBLESHOOTING FOR ELECTRICAL EQUIPMENT SYSTEM......2313
PM-CLINIC SERVICE......2315
TROUBLESHOOTING......2322
POINTS TO REMEMBER WHEN TROUBLESHOOTING......2323
SEQUENCE OF EVENTS IN TROUBLESHOOTING......2324
POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE......2325
CHECKS BEFORE TROUBLESHOOTING......2333
CLASSIFICATION AND STEPS FOR TROUBLESHOOTING......2334
CONNECTOR ARRANGEMENT DIAGRAM AND ELECTRIC CIRCUIT DIAGRAM OF EACH SYSTEM......2338
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS......2355
T-BRANCH BOX AND T-BRANCH TABLE......2377
TROUBLESHOOTING WHEN ERROR CODE "ELECTRICAL SYSTEM" AND FAILURE CODE "MECHANICAL SYSTEM" ARE DISPLAYED......2380
INFORMATION CONTAINED IN TROUBLESHOOTING TABLE......2382
ERROR CODE IN ELECTRICAL SYSTEM [E112](SHORT-CIRCUITING IN NORMAL ROTATION SYSTEM OF WINDSHIELD WIPER MOTOR DRIVE)......2384
ERROR CODE IN ELECTRICAL SYSTEM [E113](SHORT-CIRCUITING IN REVERSE ROTATION SYSTEM OF WINDSHIELD WIPER MOTOR DRIVE)......2386
ERROR CODE IN ELECTRICAL SYSTEM [E114](SHORT-CIRCUITING IN WINDOW WASHER DRIVE SYSTEM)......2388
ERROR CODE IN ELECTRICAL SYSTEM [E115](ABNORMAL WINDSHIELD WIPER MOTION)......2390
ERROR CODE IN ELECTRICAL SYSTEM [E116](ABNORMALITY IN RETRACTING WINDSHIELD WIPER) ......2392
ERROR CODE IN ELECTRICAL SYSTEM (E117](ENG. CONTROLLER S-NET COMM. ERR.)......2394
ERROR CODE IN ELECTRICAL SYSTEM (E118](PUMP CONTROLLER S-NET COMM. ERR.)......2396
ERROR CODE IN ELECTRICAL SYSTEM (E128](MONITOR COMM. ABNORMALITY)......2398
ERROR CODE IN ELECTRICAL SYSTEM (E201](SHORT-CIRCUITING IN TRAVEL INTERLOCKING SOLENOID)......2400
ERROR CODE IN ELECTRICAL SYSTEM [E203](SHORT-CIRCUITING IN SWING HOLDING BRAKE SOLENOID)......2401
ERROR CODE IN ELECTRICAL SYSTEM [E204](SHORT-CIRCUITING IN MERGE/DIVIDE SOLENOID)......2403
ERROR CODE IN ELECTRICAL SYSTEM [E205](SHORT-CIRCUITING IN 2-STAGE RELIEF SOLENOID)......2404
ERROR CODE IN ELECTRICAL SYSTEM [E206](SHORT-CIRCUITING IN TRAVEL SPEED SHIFTING SOLENOID)......2405
ERROR CODE IN ELECTRICAL SYSTEM [E211](DISCONNECTION IN TRAVEL INTERLOCKING SOLENOID)......2406
ERROR CODE IN ELECTRICAL SYSTEM [E213](DISCONNECTION IN SWING HOLDING BRAKE SOLENOID)......2407
ERROR CODE IN ELECTRICAL SYSTEM [E214](DISCONNECTION OF MERGE/DIVIDE SOLENOID)......2409
ERROR CODE IN ELECTRICAL SYSTEM [E215](DISCONNECTION IN 2-STAGE RELIEF SOLENOID)......2410
ERROR CODE IN ELECTRICAL SYSTEM [E216](DISCONNECTION IN TRAVEL SPEED SHIFTING SOLENOID)......2411
ERROR CODE IN ELECTRICAL SYSTEM [E217](ABNORMAL INPUT MODEL CODE)......2412
ERROR CODE IN ELECTRICAL SYSTEM [E218](S-NET COMM. DISC.)......2414
ERROR CODE IN ELECTRICAL SYSTEM [E222](SHORT-CIRCUITING IN LS-EPC SOLENOID)......2416
ERROR CODE IN ELECTRICAL SYSTEM [E223](DISCONNECTION IN LS-EPC SOLENOID SYSTEM)......2417
ERROR CODE IN ELECTRICAL SYSTEM [E224](F PUMP P. SENSOR ABNORMALITY)......2418
ERROR CODE IN ELECTRICAL SYSTEM [E225](R PUMP P. SENSOR ABNORMALITY)......2420
ERROR CODE IN ELECTRICAL SYSTEM [E226](P. SENSOR POWER ABNORMALITY)......2422
ERROR CODE IN ELECTRICAL SYSTEM [E227](ABNORMALITY IN ENGINE ROTATION SENSOR) ......2424
ERROR CODE IN ELECTRICAL SYSTEM [E228](SHORT-CIRCUITING IN ATTACHMENT RETURN SWITCHING RELAY)......2425
ERROR CODE IN ELECTRICAL SYSTEM [E232](SHORT-CIRCUITING IN PC-EPC SOLENOID)......2426
ERROR CODE IN ELECTRICAL SYSTEM [E233](DISCONNECTION IN PC-EPC SOLENOID SYSTEM)......2428
ERROR CODE IN ELECTRICAL SYSTEM [E238](DISCONNECTION IN ATTACHMENT RETURN SWITCHING RELAY)......2430
ERROR CODE IN ELECTRICAL SYSTEM [E245](SHORT-CIRCUITING IN ATTACHMENT OIL FLOW RATE ADJUSTING EPC)......2432
ERROR CODE IN ELECTRICAL SYSTEM [E246](DISCONNECTION IN ATTACHMENT OIL FLOW RATE ADJUSTING EPC)......2433
ERROR CODE IN ELECTRICAL SYSTEM [E247](ARM IN PPC PRESSURE SENSOR ABNORMALITY)......2434
ERROR CODE IN ELECTRICAL SYSTEM [E248](BUCKET CURL PPC PRESSURE SENSOR ABNORMALITY)......2436
ERROR CODE IN ELECTRICAL SYSTEM [E257](PUMP ABNORMALITY)......2438
ERROR CODE IN ELECTRICAL SYSTEM [E315](BATTERY RELAY DRIVE S/C)......2440
ERROR CODE IN ELECTRICAL SYSTEM [E91B](ENGINE NE SENSOR PROBLEM)......2442
ERROR CODE IN ELECTRICAL SYSTEM [E91C](ENGINE G SENSOR PROBLEM)......2443
ERROR CODE IN ELECTRICAL SYSTEM [E920](ENGINE TYPE SELECTION ERROR)......2444
ERROR CODE IN ELECTRICAL SYSTEM [E921](ENGINE TYPE MISMATCH)......2446
ERROR CODE IN ELECTRICAL SYSTEM [E931](FUEL DIAL SYS. ERROR)......2447
ERROR CODE IN ELECTRICAL SYSTEM [E934](ENGINE COOLANT SENSOR HI ERROR)......2449
ERROR CODE IN ELECTRICAL SYSTEM [E936](ENGINE OIL PRESS. SW. ERROR)......2451
ERROR CODE IN ELECTRICAL SYSTEM [E93C](ENGINE BOOST SENSOR ERROR)......2453
ERROR CODE IN ELECTRICAL SYSTEM [E93D](ENGINE FUEL TEMP. SENSOR ERROR)......2455
ERROR CODE IN ELECTRICAL SYSTEM [E953](ENGINE COMM. ABNORMALITY)......2457
ERROR CODE IN ELECTRICAL SYSTEM [E954](SHORT ENGINE STARTER SW.)......2459
ERROR CODE IN ELECTRICAL SYSTEM [E955](ENGINE S-NET ERROR)......2461
ERROR CODE IN ELECTRICAL SYSTEM [E956](ENGINE POWER FAILURE (1))......2463
ERROR CODE IN ELECTRICAL SYSTEM [E957](ENGINE POWER FAILURE (2))......2465
ERROR CODE IN ELECTRICAL SYSTEM [E95A](ENGINE Q-ADJ. SW. SIGNAL ERROR)......2467
ERROR CODE IN ELECTRICAL SYSTEM [E96A](ENGINE COOLANT SENSOR LO ERROR)......2468
ERROR CODE IN ELECTRICAL SYSTEM [E970](PCV1 OVER CURRENT)......2470
ERROR CODE IN ELECTRICAL SYSTEM [E971](PCV2 OVER CURRENT)......2471
ERROR CODE IN ELECTRICAL SYSTEM [E974](PCV1 LINE CUT)......2472
ERROR CODE IN ELECTRICAL SYSTEM [E975](PCV2 LINE CUT)......2473
ERROR CODE IN ELECTRICAL SYSTEM [E977](RAIL PRESS. SENSOR ERROR)......2474
ERROR CODE IN ELECTRICAL SYSTEM [E979](RAIL PRESS. HIGH)......2476
ERROR CODE IN ELECTRICAL SYSTEM [E97A](RAIL PRESS. ABNORMAL)......2476
ERROR CODE IN ELECTRICAL SYSTEM [E97B](RAIL PRESS. LOW)......2477
ERROR CODE IN ELECTRICAL SYSTEM [E97C](RAIL PRESS. TOO LOW)......2479
ERROR CODE IN ELECTRICAL SYSTEM [E97D](RAIL PRESS. CUT OF CONTROL)......2479
ERROR CODE IN ELECTRICAL SYSTEM [E980](ENG. CONTROLLER ABNORMALITY)......2480
ERROR CODE IN ELECTRICAL SYSTEM [E981](FUEL INJECTOR 1 DISC.)......2482
ERROR CODE IN ELECTRICAL SYSTEM [E982](FUEL INJECTOR 2 DISC.)......2483
ERROR CODE IN ELECTRICAL SYSTEM [E983](FUEL INJECTOR 3 DISC.)......2484
ERROR CODE IN ELECTRICAL SYSTEM [E984](FUEL INJECTOR 4 DISC.)......2485
ERROR CODE IN ELECTRICAL SYSTEM [E985](FUEL INJECTOR 5 DISC.)......2486
ERROR CODE IN ELECTRICAL SYSTEM [E986](FUEL INJECTOR 6 DISC.)......2487
ERROR CODE IN ELECTRICAL SYSTEM [E98A](FUEL INJECTOR 1-3 S/C)......2488
ERROR CODE IN ELECTRICAL SYSTEM [E98B](FUEL INJECTOR 4-6 S/C)......2490
ERROR CODE IN MECHANICAL SYSTEM [A000N1](ENGINE HIGH-IDLING SPEED OUT OF STANDARD)......2492
ERROR CODE IN MECHANICAL SYSTEM [A000N2](ENGINE LOW-IDLING SPEED OUT OF STANDARD)......2492
FAILURE CODE IN MECHANICAL SYSTEM [AA10NX](AIRCLEANER CLOGGING......2493
FAILURE CODE IN MECHANICAL SYSTEM [AB00KE](CHARGE VOLTAGE LOW)......2495
FAILURE CODE IN MECHANICAL SYSTEM [B@BAZG](ENG. OIL PRESS. LOW)......2497
FAILURE CODE IN MECHANICAL SYSTEM [B@BAZK](ENG. OIL LEVEL LOW)......2499
FAILURE CODE IN MECHANICAL SYSTEM [B@BCNS](ENG. WATER OVERHEAT)......2500
FAILURE CODE IN MECHANICAL SYSTEM [B@BCZK](ENG. WATER LVL LOW)......2501
FAILURE CODE IN MECHANICAL SYSTEM [B@HANS](HYDR. OIL OVERHEAT)......2502
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)......2503
INFORMATION CONTAINED IN TROUBLESHOOTING TABLE......2505
E-1 ENGINE DOES NOT START(THE ENGINE DOES NOT ROTATE)......2506
E-2 PREHEATER DOES NOT OPERATE......2509
E-3 AUTO ENGINE WARM-UP DEVICE DOES NOT WORK......2511
E-4 AUTO-DECELERATOR DOES NOT OPERATE......2512
E-5 ALL WORK EQUIPMENT,SWING AND TRAVEL DO NOT MOVE......2513
E-6 ONE-TOUCH POWER MAX, FUNCTION DOES NOT OPERATE......2515
E-7 MACHINE PUSH-UP FUNCTION DOES NOT OPERATE NORMALLY......2516
E-8 ATTACHMENT CIRCUIT DOES NOT CHANGE......2518
E-9 NO DISPLAY IN MONITOR PANEL AT ALL......2520
E-10 PART OF DISPLAY ON MONITOR PANEL IS MISSING......2521
E-11 MONITOR PANEL DISPLAYS CONTENTS IRRELEVANT TO THE MODEL......2521
E-12 FUEL LEVEL MONITOR RED LAMP LIGHTS UP WHILE ENGINE IS RUNNING......2522
E-13 ENGINE WATER TEMPERATURE GAUGE DOES NOT DISPLAY CORRECTLY......2523
E-14 HYDRAULIC OIL TEMPERATURE GAUGE DOES NOT DISPLAY CORRECTLY......2525
E-15 FUEL GAUGE DOES NOT DISPLAY CORRECTLY......2526
E-16 SWING LOCK MONITOR DOES NOT DISPLAY CORRECTLY......2527
E-17 WHEN MONITOR SWITCH IS OPERATED,NOTHING IS DISPLAYED......2529
E-18 WINDSHIELD WIPER AND WINDOW WASHER DO NOT WORK......2531
E-19 ALARM BUZZER CANNOT BE CANCELLED......2535
E-20 "BOOM RAISE" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION......2536
E-21 "BOOM LOWER" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION......2537
E-22 "ARM IN" IS NOT DISPLAYED NORMALLY IN MONITORING FUNCTION......2538
E-23 "ARM DUMPING " IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION......2539
E-24 "BUCKET CURL" IS NOT DISPLAYED NORMALLY IN MONITORING FUNCTION......2540
E-25 "BUCKET DUMPING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION......2541
E-26 "SWING" IS NOT DISPLAYED NORMALLY IN MONITORING FUNCTION......2542
E-27 "TRAVEL" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION......2544
E-28 "TRAVEL DIFFERENTIAL PRESSURE" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION......2546
E-29 "SERVICE" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION......2548
E-30 TRAVEL ALARM DOES NOT SOUND OR DOES NOT STOP SOUNDING......2550
E-32 TROUBLESHOOTING FOR AIR CONDITIONER SYSTEM......2552
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM(H MODE)......2563
SYSTEM CHART FOR HYDRAULIC AND MECHANICAL SYSTEM......2564
INFORMATION CONTAINED IN TROUBLESHOOTING TABLE......2566
H-1 ALL WORK EQUIPMENT LACK POWER,OR TRAVEL AND SWING SPEEDS ARE SLOW......2567
H-2 ENGINE SPEED SHARPLY DROPS OR ENGINE STALLS......2568
H-3 NO WORK EQUIPMENT,TRAVEL OR SWING MOVE......2569
H-4 ABNORMAL NOISE IS HEARD FROM AROUND HYDRAULIC PUMP......2569
H-5 AUTO-DECELERATOR DOES NOT WORK......2570
H-6 FINE CONTROL MODE DOES NOT FUNCTION......2570
H-7 BOOM MOVES SLOWLY OR LACKS POWER......2571
H-8 ARM MOVES SLOWLY OR LACKS POWER......2572
H-9 BUCKET MOVES SLOWLY OR LACKS POWER......2573
H-10 WORK EQUIPMENT DOES NOT MOVE IN ITS SINGLE OPERATION......2573
H-11 WORK EQUIPMENT HAS A BIT TOO FAST HYDRAULIC DRIFT......2574
H-12 WORK EQUIPMENT HAS BIG TIME LAG......2575
H-13 OTHER WORK EQUIPMENT MOVES WHEN RELIEVING SINGLE CIRCUIT......2575
H-14 ONE-TOUCH POWER MAX. FUNCTION DOES NOT WORK......2575
H-15 MACHINE PUSH-UP FUNCTION DOES NOT WORK......2576
H-16 IN COMPOUND OPERATION,WORK EQUIPMENT WITH LARGER LOAD MOVES SLOWLY......2577
H-17 IN SWING + BOOM RAISE OPERATION,BOOM MOVES SLOWLY......2577
H-18 IN SWING + TRAVEL,TRAVEL SPEED DROPS SHARPLY......2577
H-19 MACHINE SWERVES IN TRAVEL......2578
H-20 MACHINE TRAVELS SLOWLY......2579
H-21 MACHINE CANNOT BE EASILY STEERED OR LACKS POWER......2580
H-22 TRAVEL SPEED DOES NOT SHIFT,OR IT IS SLOWER OR FASTER THAN PRESET SPEED......2581
H-23 TRACK SHOE DOES NOT TURN(ON ONE SIDE ONLY)......2582
H-24 MACHINE DOES NOT SWING......2583
H-25 SWING ACCELERATION IS POOR,OR SWING SPEED IS SLOW......2584
H-26 EXCESSIVE OVERRUN WHEN STOPPING SWING......2585
H-27 THERE IS BIG SHOCK WHEN STOPPING SWING......2586
H-28 THERE IS BIG ABNORMAL NOISE CAUSED WHEN STOPPING SWING......2586
H-29 SWING NATURAL DRIFT IS TOO BIG......2587
H-30 ATTACHMENT CIRCUIT DOES NOT CHANGE......2588
H-31 FLOW RATE IN ATTACHMENT CIRCUIT CANNOT BE ADJUSTED......2588
TROUBLESHOOTING OF ENGINE (S MODE)......2589
POINTS TO REMEMBER WHEN TROUBLESHOOTING......2590
METHOD OF USING TROUBLESHOOTING CHARTS......2591
S-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME)......2594
S-2 ENGINE DOES NOT START......2595
S-3 ENGINE DOES NOT PICK UP SMOOTHLY(FOLLOW-UP IS POOR)......2598
S-4 ENGINE STOPS DURING OPERATIONS......2599
S-5 ENGINE DOES NOT ROTATE SMOOTHLY(HUNTING)......2600
S-6 ENGINE LACKS OUTPUT (OR LACKS POWER)......2601
S-7 EXHAUST SMOKE IS BLACK(INCOMPLETE COMBUSTION)......2602
S-8 OIL CONSUMPTION IS EXCESSIVE (OR EXHAUST SMOKE IS BLUE)......2603
S-9 OIL BECOMES CONTAMINATED QUICKLY......2604
S-10 FUEL CONSUMPTION IS EXCESSIVE......2605
S-11 OIL IS IN COOLING WATER (OR WATER SPURTS BACK, OR WATER LEVEL GOES DOWN)......2606
S-12 OIL PRESSURE CAUTION LAMP LIGHTS UP (DROP IN OIL PRESSURE)......2607
S-13 OIL LEVEL RISES (WATER,FUEL IN OIL)......2608
S-14 WATER TEMPERATURE BECOMES TOO HIGH(OVERHEATING)......2609
S-15 ABNORMAL NOISE IS MADE......2610
S-16 VIBRATION IS EXCESSIVE......2611
30 DISASSEMBLY AND ASSEMBLY......2612
HOW TO READ THIS MANUAL......2613
PRECAUTIONS WHEN PERFORMING OPERATION......2615
SPECIAL TOOL LIST......2617
REMOVAL AND INSTALLATION OF CYLINDER HEAD ASSEMBLY......2625
REMOVAL AND INSTALLATION OF ENGINE REAR SEAL......2632
REMOVAL AND INSTALLATION OF ENGINE FRONT SEAL......2636
REMOVAL AND INSTALLATION OF FUEL SUPPLY PUMP ASSEMBLY......2639
REMOVAL AND INSTALLATION OF FUEL INJECTOR ASSEMBLY......2642
REMOVAL AND INSTALLATION OF NOZZLE TIP......2645
REMOVAL AND INSTALLATION OF STARTING MOTOR ASSEMBLY......2647
REMOVAL AND INSTALLATION OF RADIATOR ASSEMBLY......2648
REMOVAL AND INSTALLATION OF HYDRAULIC OIL COOLER ASSEMBLY......2650
REMOVAL AND INSTALLATION OF ENGINE AND HYDRAULIC PUMP ASSEMBLY......2652
REMOVAL AND INSTALLATION OF SWING CIRCLE ASSEMBLY......2657
REMOVAL AND INSTALLATION OF SWING MOTOR AND SWING MACHINERY ASSEMBLY......2658
DISASSEMBLY AND ASSEMBLY OF SWING MOTOR AND SWING MACHINERY ASSEMBLY......2659
REMOVAL AND INSTALLATION OF SPROCKET......2666
REMOVAL AND INSTALLATION OF TRAVEL MOTOR AND FINAL DRIVE ASSEMBLY......2667
DISASSEMBLY AND ASSEMBLY OF FINAL DRIVE ASSEMBLY......2668
DISASSEMBLY AND ASSEMBLY OF CARRIER ROLLER ASSEMBLY......2675
DISASSEMBLY AND ASSEMBLY OF TRAVEL ROLLER ASSEMBLY......2677
DISASSEMBLY AND ASSEMBLY OF IDLER ASSEMBLY......2678
DISASSEMBLY AND ASSEMBLY OF RECOIL SPRING ASSEMBLY......2681
EXPANSION AND INSTALLATION OF TRACK SHOE ASSEMBLY......2683
REMOVAL AND INSTALLATION OF AIR CONDITIONER UNIT ASSEMBLY......2685
REMOVAL AND INSTALLATION OF OPERATOR'S CAB......2687
REMOVAL AND INSTALLATION OF MONITOR ASSEMBLY......2690
REMOVAL AND INSTALLATION OF PUMP CONTROLLER......2691
REMOVAL AND INSTALLATION OF ENGINE CONTROLLER......2692
REMOVAL AND INSTALLATION OF REVOLVING FRAME ASSEMBLY......2693
REMOVAL AND INSTALLATION OF COUNTERWEIGHT ASSEMBLY......2696
REMOVAL AND INSTALLATION OF HYDRAULIC TANK ASSEMBLY......2697
REMOVAL AND INSTALLATION OF HYDRAULIC PUMP ASSEMBLY......2699
REMOVAL AND INSTALLATION OF OIL SEAL IN HYDRAULIC PUMP INPUT SHAFT......2702
REMOVAL AND INSTALLATION OF CONTROL VALVE ASSEMBLY......2703
DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY......2706
REMOVAL AND INSTALLATION OF CENTER SWIVEL JOINT ASSEMBLY......2710
DISASSEMBLY AND ASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY......2712
DISASSEMBLY AND ASSEMBLY OF WORK EQUIPMENT PPC VALVE ASSEMBLY......2713
DISASSEMBLY AND ASSEMBLY OF TRAVEL PPC VALVE ASSEMBLY......2714
DISASSEMBLY AND ASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY......2715
REMOVAL AND INSTALLATION OF WORK EQUIPMENT ASSEMBLY......2720
REMOVAL AND INSTALLATION OF OPERATOR'S CAB GLASS (STUCK GLASS)......2723
REMOVAL AND INSTALLATION OF FRONT WINDOW ASSEMBLY......2733
90 OTHERS......2739
HYDRAULIC CIRCUIT DIAGRAM (1/2)......2740
HYDRAULIC CIRCUIT DIAGRAM (2/2)......2741
ELECTRICAL CIRCUIT DIAGRAM(1/5)......2742
ELECTRICAL CIRCUIT DIAGRAM(2/5)......2743
ELECTRICAL CIRCUIT DIAGRAM(3/5)......2744
ELECTRICAL CIRCUIT DIAGRAM(4/5)......2745
ELECTRICAL CIRCUIT DIAGRAM(5/5)......2746
AIR CONDITIONER ELECTRICAL CIRCUIT......2747
ELECTRICAL CIRCUIT DIAGRAM (A1 SIZE)......2748
CONNECTORS TABLE AND ARRANGEMENT DRAWING (A1 SIZE)......2749
SEBM033012 - Hydraulic Excavator PC400-7, PC400LC-7, PC450-7, PC450LC-7 Shop Manual......2750
COVER......2750
CONTENTS......2751
01 GENERAL......2785
SPECIFICATION DRAWINGS......2786
SPECIFICATIONS......2790
WEIGHT TABLE......2796
FUEL, COOLANT AND LUBRICANTS......2800
10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD......2803
ENGINE RELATED PARTS......2804
RADIATOROIL COOLERAFTERCOOLER......2806
POWER TRAIN......2807
FINAL DRIVE......2808
SPROCKET......2810
SWING MACHINERY......2812
SWING CIRCLE......2814
TRACK FRAME AND RECOIL SPRING......2815
IDLER......2817
CARRIER ROLLER......2819
TRACK ROLLER......2820
TRACK SHOE......2821
HYDRAULIC PIPING DRAWING......2825
HYDRAULIC TANK......2827
HYDRAULIC PUMP......2828
LS(PC)-EPC VALVE......2847
VARIABLE VOLUME VALVE......2850
CONTROL VALVE......2852
CLSS......2876
FUNCTIONS AND OPERATION BY VALVE......2880
