Komatsu Articulated Dump Truck HA250-1, HA250-3, HA270-1, HA270-3 Repair Service Manual + Operation & Maintenance Manual
Complete service repair manual with Electrical Wiring Diagrams for Komatsu Articulated Dump Truck HA250-1, HA250-3, HA270-1, HA270-3, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.
Komatsu Articulated Dump Truck HA250-1, HA250-3, HA270-1, HA270-3 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: 1,166 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
SEBMHA250104 - Articulated Dump Truck HA250-1 & HA270-1 Shop Manual.pdf
SEBMHA250104 - Articulated Dump Truck HA250-1, HA250-3, HA270-1, HA270-3 Shop Manual.pdf
XEAMM00100 - Articulated Dump Truck HA250-3, HA270-3 Operation & Maintenance Manual.pdf
MAIN SECTIONS
COVER...1
CONTENTS...2
0.0 GENERAL INSTRUCTION...3
0.0. 2 FOREWORD...4
0.0. 3 TYPE OF SEALINGS/LOCKING COMPOUNDS AND LUBRICANTS...5
0.0. 4 WEIGHTS AND MEASURES...6
0.0. 5 TORQUE LIMIT TABLE...7
0.0. 6 SAFETY IN SERVICE WORK SHOPS...8
0.0.26 PRECAUTION FOR DISASSEMBLY AND ASSEMBLY...28
0.0.30 GENERAL LOCATION...32
0.0.31 DRIVE LINE VIEW...33
0.0.32 MACHINE SPECIFICATION (HA270-1)...34
0.0.34 MACHINE SPECIFICATION (HA250-1)...36
0.0.36 MACHINE SPECIFICATION (HA270-3 & HA250-3)...38
0.0.38 PERFORMANCE CHART (HA270-3)...40
0.0.39 EXHAUST BRAKE CAPACITY DIAGRAM-HA270 HA270-3...41
0.0.40 PERFORMANCE CHART (HA250-3)...42
0.0.41 EXHAUST BRAKE CAPACITY DIAGRAM (HA250-3)...43
0.0.42 FILLING CAPACITIES...44
0.0.43 OIL AND FLUID SPECIFICATION...45
0.0.44 TRANSMISSION OIL LIST...46
1.0 ENGINE...47
2.0 TRANSMISSION...48
2.1 STRUCTURE AND FUNCTION...48
2.1. 1 GENERAL DESCRIPTION...49
2.1. 8 SPEED CHANGE DIAGRAM...55
2.1. 9 CONTROL VALVE WITH LOCK-UP VALVE...56
2.1.11 OIL CIRCUIT DIAGRAM...57
2.1.12 OIL CIRCUIT DIAGRAM WITH ELECTRIC-SHIFT UNIT AND CONVERTER LOCK-UP CLUTCH WORK...58
2.1.14 INDUCTIVE TRANSMITTER...59
2.2 TESTING AND ADJUSTING...60
2.2. 1 STANDARD VALUES...61
2.2. 2 SHIFTING POINTS, AUTOMATIC TRANSMISSION...62
2.2. 3 MEASURING OIL LEVEL AND TEMPERATURE...63
2.2. 4 MEASURING PRESSURE AND DELIVERY AND TEMPERATURE...64
2.2. 5 MEASURING LOCATION...65
2.2. 6 TESTING UNITS...66
2.2. 7 ADJUSTING OF INDUCTIVE TRANSMITTER...67
2.2. 8 STALL PERFORMANCE...68
2.2. 9 ADJUSTING OF INTER AXLE DIFFERENTIAL LOCK...69
2.3 DISASSEMBLY AND ASSEMBLY...70
2.3.01 TRANSMISSION ASS'Y...72
2.3. 1 TRANSMISSION CONTROL VALVE...82
2.3.10 TORQUE CONVERTER...91
2.3.25 TRANSMISSION...106
2.3.77 INTERMED DIFERENTIAL...158
2.3.92 SPECIAL TOOLS...173
2.4 MAINTENANCE STANDARD...176
2.4. 1 OIL CONTAMINATION...177
2.5 TROUBLESHOOTING...178
2.5.1 TENPERATURE TOO HIGH...179
2.5.2 NO FUNCTION ALL GEARS...180
2.5.3 NO FUNCTION 1st AND 2nd GEAR...181
2.5.4 CONTROL PRESSURE TOO LOW IN ALL GEARS...182
3.0 DRIVELINE, BRAKES AND WHEELS...183
3.1 STRUCTURE AND FUNCTION...183
3.1. 1 FRONT AND REAR DIFFERENTIAL...184
3.1. 8 FRONT REDUCTION GEAR...190
3.1. 9 BRAKES...191
3.1.11 AUTOMATIC SLACK ADJUSTER...193
3.1.15 TYRES...197
3.2 TESTING AND ADJUSTING...198
3.2.1 MEASURING OIL LEVELS...199
3.2.2 FRONT WHEEL BEARING ADJUSTMENT...200
3.2.3 ADJUSTING OF REAR DIFFERENTIAL LOCK...201
3.2.4 MAIN BRAKE...202
3.2.5 PARK BRAKE...203
3.3 DISASSEMBLY AND ASSEMBLY...205
3.3. 1 FRONT DIFFERENTIAL...206
3.3. 24 REAR DIFFERENTIAL...229
3.3. 56 FRONT REDUCTION GEAR...260
3.3. 71 TANDEM HOUSING...275
3.3. 89 TYRES...292
3.3. 91 MASTER CYLINDER...294
3.3. 93 BRAKE CALLIPER...296
3.3. 95 PARKING BRAKE CALLIPER...298
3.3. 97 AUTOMATIC SLACK ADJUSTER...300
3.3.101 SPECIAL TOOLS...304
3.4 MAINTENANCE STANDARD...308
3.4. 1 BRAKES...309
3.5 TROUBLE SHOOTING...310
3.5. 1 REAR DIFFERENTIAL ...311
3.5. 2 SERVICE BRAKE...312
3.5. 4 PARKING BRAKE...314
4.0 AIR SYSTEM...318
4.1 STRUCTURE AND FUNCTION...318
4.1. 1 AIR SYSTEM (?65395/?60890)...319
4.1. 2 AIR SYSTEM (65396?/60891?)...320
4.1. 3 AIR CIRCUIT DIAGRAM (311001?311015/301001?301017)...323
4.1.4-1 AIR CIRCUIT DIAGRAM (HA-?:313001?/303001?)...325
4.1. 5 AIR SUPPLY...326
4.1. 6 FRONT BRAKES (CIRCUIT 1)...327
4.1. 7 REAR BRAKES (CIRCUIT 2)...328
4.1. 8 PARKING BRAKE (CIRCUIT 3)...329
4.1. 9 OTHER AIR OPERATED SYSTEMS...330
4.1.11 GOVERNOR...331
4.1.12 SAFETY VALVE...332
4.1.13 MOISTURE REPELLENT INJECTOR...333
4.1.14 AUTOMATIC DRAIN VALVE...334
4.1.16 SINGLE CHECK VALVE...336
4.1.17 TEST CONNECTOR...337
4.1.18 LOW PRESSURE INDICATOR...338
4.1.19 FOUR-CIRCUIT PROTECTION VALVE...339
4.1.20 DUAL FOOT BRAKE VALVE...340
4.1.21 STOP LIGHT SWITCH...341
4.1.22 RELAY VALVE...342
4.1.24 PARKING BRAKE LOW PRESSURE VALVE...344
4.1.25 PARKING BRAKE CONTROL VALVE...345
4.1.27 MAIN BRAKE CHAMBER...347
4.1.28 PARKING BRAKE CHAMBER...348
4.1.29 QUICK RELEASE VALVE...349
4.1.30 PRESSURE PROTECTION VALVE...350
4.1.31 PRESSURE REDUCING VALVE...351
4.1.32 SOLENOID VALVE...352
4.1.34 AIR DRYER...354
4.2 TESTING AND ADJUSTING...356
4.2.1 STANDARD VALUES...357
4.3 DISASSEMBLY AND ASSEMBLY...358
4.3. 9 GOVERNOR...359
4.3.10 MOISTURE REPELLENT INJECTOR...360
4.3.11 SINGLE CHECK VALVE...361
4.3.12 FOUR CIRCUIT PROTECTION VALVE...362
4.3.13 PARKING BRAKE CONTROL VALVE...363
4.3.15 RELAY VALVE...365
4.3.16 MAIN BRAKE CHAMBER...366
4.3.17 QUICK RELEASE VALVE...367
4.3.18 SOLENOID VALVE...368
4.4 MAINTENANCE STANDARD...370
4.4. 1 GOVERNOR...371
4.4. 2 PRESSURE PROTECTION VALVE...372
4.4. 3 PRESSURE REDUCING VALVE...373
4.4. 4 LOW PRESSURE INDICATOR...374
4.5 TROUBLE SHOOTING...375
4.5. 1 DIAGRAM...376
5.0 HYDRAULIC SYSTEM...377
5.1 STRUCTURE AND FUNCTION...377
5.1. 1 HYDRAULIC SYSTEM...378
5.1. 2 HYDRAULIC CIRCUIT ARRANGEMENT...379
5.1. 3 HYDRAULIC CIRCUIT DIAGRAM...380
5.1. 4 HYDRAULIC RESERVOIR...381
5.1. 5 HYDRAULIC PUMP...382
5.1. 7 DEMAND VALVE...384
5.1. 8 STEERING CIUCUIT...385
5.1. 9 ORBITROL VALVE...386
5.1.10 STEERING VALVE...387
5.1.16 STEERING SYLINDER...393
5.1.17 EMERGENCY STEERING CIRCUIT...394
5.1.18 EMERGENCY STEERING PUMP...395
5.1.19 CONNECTING VALVE...396
5.1.20 FLOW INDICATOR VALVE...397
5.1.21 TIPPING CIRCUIT...398
5.1.22 TIP VALVE...399
5.2 TESTING AND ADJUSTING...400
5.2. 1 STANDARD VALUES...401
5.2. 2 MEASURING OIL LEVEL...402
5.2. 2 MEASURING OIL TEMPERATURE...402
5.2. 2 MEASURING PUMP DELIVERY...402
5.2. 3 TESTING STEERING SYSTEM...403
5.2. 4 TESTING TIP SYSTEM...404
5.3 DISASSEMBLY AND ASSEMBLY...405
5.3. 1 HYDRAULIC PUMP...406
5.3. 4 FILTER...409
5.3. 5 CONNECTING VALVE...410
5.3. 6 FLOW INDICATOR...411
5.3. 7 STEERING VALVE...412
5.3.34 ORBITROL VALVE...439
5.3.48 TIP VALVE...452
5.3.49 TIP CYLINDER...453
5.3.51 SPECIAL TOOLS...455
5.5 TROUBLE SHOOTING...456
5.5. 1 DIAGRAM...457
6.0 ELECTRICAL SYSTEM...462
6.1 STRUCTURE AND FUNCTION...463
6.1. 5 FUNCTION OF ELECTRICAL COMPONENTS...464
6.1. 8 FUNCTION OF MAJOR CIRCUITS...467
6.1.34 AUTOMATIC TRANSMISSION CIRCUIT...491
7.0 FRONT CHASSIS...492
7.1 STRUCTURE AND FUNCTION...492
7.1. 1 FRAME...493
7.1. 2 SUSPENSION...494
8.0 REAR CHASSIS...495
8.1 STRUCTURE AND FUNCTION...495
8.1. 1 FRAME...496
8.1. 2 ARTICULATION HINGE...497
8.1. 3 BODY...498
8.1. 4 TAIL GATE...499
8.2 TESTING AND ADJUSTING...500
8.2. 1 TURNING RING CLEARANCE...501
8.3 DISASSEMBLY AND ASSEMBLY...502
8.3. 1 GAS CYLINDER...503
8.3. 2 FILLING OF GAS CYLINDER...504
8.3. 3 BODY BUSHINGS...505
8.3. 4 TURNING RING...506
8.3. 5 ARTICULATION HINGE...507
9.0 ACCESSORIES...511
9.0. 1 FILLING INSTRUCTIONS FOR AIR CONDITION COOLING AGENT...512
