Komatsu Dump Truck HD255 Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Komatsu Dump Truck HD255, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.
Komatsu Dump Truck HD255 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.
SEBM00911 - Komatsu Dump Truck HD255-5 Shop Manual.pdf
PRODUCT DETAILS:
Total Pages: 613 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
TABLE OF CONTENTS
COVER...1
CONTENTS...2
LIST OF REVISED PAGES...3
SAFETY...7
SAFETY NOTICE...7
FOREWORD...9
GENERAL...9
HOW TO READ THE SHOP MANUAL...10
HOISTING INSTRUCTIONS...11
METHOD OF DISASSEMBLING, CONNECTING PUSH-PULL TYPE COUPLER...12
COATING MATERIALS...14
STANDARD TIGHTENING TORQUE...16
ELECTRIC WIRE CODE...19
CONVERSION TABLE...20
UNITS...26
01 GENERAL...27
DIMENSIONS...28
SPECIFICATIONS...30
WEIGHT TABLE...36
LIST OF LUBRICANTS AND COOLANT...37
10 STRUCTURE AND FUNCTION...39
RADIATOR, TORQUE CONVERTER AND BRAKE OIL COOLER, AND AFTERCOOLER...40
POWER TRAIN SKELETON...42
HYDRAULIC CIRCUIT DIAGRAM FOR TORQUE CONVERTER, TRANSMISSION, AND BRAKE COOLING...44
TORQUE CONVERTER...46
MAIN RELIEF VALVE...48
TORQUE CONVERTER VALVE...50
TRANSMISSION...55
TRANSMISSION VALVE...60
ECMV (ELECTRONIC CONTROL MODULATION VALVE)...61
FRONT AXLE...66
REAR AXLE...67
DIFFERENTIAL...68
FINAL DRIVE...69
FRONT BRAKE...70
REAR BRAKE...71
PARKING BRAKE...72
STEERING COLUMN...74
STEERING LINKAGE...76
DEMAND VALVE...77
CROSSOVER RELIEF VALVE...80
STEERING VALVE...81
FRONT SUSPENSION CYLINDER...82
REAR SUSPENSION CYLINDER...83
AIR GOVERNOR...84
SAFETY VALVE...86
CHECK VALVE...86
DOUBLE CHECK VALVE...87
HAND BRAKE VALVE (RETARDER CONTROL VALVE)...88
BRAKE VALVE...90
PARKING BRAKE CONTROL VAVLE...93
BRAKE RELAY VALVE...95
BRAKE RELAY VALVE (ACTS ALSO AS EMERGENCY RELAY)...97
PARKING BRAKE RELAY VALVE...104
PARKING BRAKE QUICK RELEASE VALVE...106
SPRING CYLINDER...107
SLACK ADJUSTER...108
FRONT BRAKE CHAMBER...109
REAR BRAKE CHAMBER...110
AIR DRIER (DRYING AGENT TYPE)...111
AIR SYSTEM DIAGRAM...113
HOIST VALVE...114
HOIST CYLINDER...115
AUTOMATIC SHIFT CONTROL SYSTEM...116
AUTOMATIC RETARDER VALVE...126
HORN VALVE...128
WIPER SWITCH...128
SENSORS, SWITCHES...129
METER LAMPS...140
20 TESTING AND ADJUSTING...151
STANDARD VALUE TABLE FOR ENGINE RELATED PARTS...152
STANDARD VALUE TABLE FOR CHASSIS...155
STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM...163
TESTING AND ADJUSTING...175
TOOLS FOR TESTING, ADJUSTING AND TROUBLESHOOTING...176
SKETCHES OF SPECIAL TOOLS...178
ADJUSTING VALVE CLEARANCE...180
MEASURING COMPRESSION PRESSURE...182
MEASURING BLOW-BY...184
TESTING AND ADJUSTING ALTERNATOR BELT TENSION AND FAN BELT TENSION...186
TESTING AND ADJUSTING AIR CONDITIONER COMPRESSOR BELT TENSION...187
MEASURING ENGINE SPEED...188
MEASURING ENGINE OIL PRESSURE...190
MEASURING BOOST PRESSURE...191
MEASURING EXHAUST GAS TEMPERATURE...192
MEASURING EXHAUST GAS COLOR...193
TESTING AND ADJUSTING FUEL INJECTION TIMING...194
BLEEDING AIR FROM FUEL INJECTION PUMP...196
HANDLING EQUIPMENT IN FUEL CIRCUIT...197
RELEASING REMAINING PRESSURE IN FUEL SYSTEM...197
MEASURING FUEL PRESSURE...198
BLEEDING AIR FROM FUEL CIRCUIT...199
REDUCED CYLINDER MODE OPERATION FOR ENGINE...201
CHECKING FOR LEAKAGE IN FUEL CIRCUIT...202
ADJUSTING ENGINE STOP MOTOR CABLE...203
ADJUSTING ACCELERATOR PEDAL...204
ADJUSTING ENGINE SPEED SENSOR...205
TESTING OIL PRESSURE OF TORQUE CONVERTER VALVE...206
TESTING TORQUE CONVERTER STALL SPEED...207
TESTING BRAKE PRESSURE...208
BLEEDING AIR FROM BRAKE CIRCUIT...209
TESTING AND ADJUSTING PARKING BRAKE PERFORMANCE...210
TESTING WEAR OF FRONT BRAKE PAD...211
TESTING WEAR OF REAR BRAKE DISC...212
TESTING AND ADJUSTING SUSPENSION CYLINDER...213
TESTING AND ADJUSTING AIR GOVERNOR SET PRESSURE...218
INSPECTION OF AIR DRIER (DESICCANT TYPE)...219
ADJUSTING HOIST LEVER LINKAGE...221
ADJUSTING BODY POSITIONER...222
TESTING AND ADJUSTING HYDRAULIC PRESSURE IN STEERING, HOIST CIRCUIT...223
BLEEDING AIR FROM HYDRAULIC CYLINDER (STEERING CYLINDER)...226
EMERGENCY TRAVEL WHEN THERE IS FAILURE IN ELECTRICAL SYSTEM...227
METHOD FOR EMERGENCY ESCAPE WHEN THERE IS FAILURE IN ELECTRICAL SYSTEM...228
PROCEDURE FOR MOVING MACHINE WHEN TRANSMISSION VALVE FAILS...234
PROCEDURE FOR FLUSHING TORQUE CONVERTER, TRANSMISSION HYDRAULIC CIRCUIT...236
PM CLINIC CHECK SHEET...237
TROUBLESHOOTING...241
POINTS TO REMEMBER WHEN TROUBLESHOOTING...242
SEQUENCE OF EVENTS IN TROUBLESHOOTING...243
POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE...244
CHECKS BEFORE TROUBLESHOOTING...252
TYPE OF CONNECTOR AND POSITION OF INSTALLATION (SERIAL NO. 1001-1200)...254
CONNECTOR PIN ARRANGEMENT DIAGRAM (SERIAL NO. 1001-1200)...258
TYPE OF CONNECTOR AND POSITION OF INSTALLATION (SERIAL NO. 1201-1599)...262
CONNECTOR PIN ARRANGEMENT DIAGRAM (SERIAL NO. 1201-1599)...266
TYPE OF CONNECTOR AND POSITION OF INSTALLATION (SERIAL NO. 1601 AND UP)...270
CONNECTOR PIN ARRANGEMENT DIAGRAM (SERIAL NO. 1601 AND UP)...274
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS ...280
METHOD OF USING JUDGEMENT TABLE...303
METHOD OF USING TROUBLESHOOTING CHARTS...304
METHOD OF LED DISPLAY FOR TRANSMISSION CONTROLLER...306
HOW TO DELETE FAILURE CODES FOR TRANSMISSION CONTROLLER AND ENGINE CONTROLLER...310
ACTION TAKEN BY TRANSMISSION CONTROLLER AND PROBLEMS ON MACHINE...312
TROUBLESHOOTING OF ENGINE SYSTEM (D MODE)...361
METHOD OF USING TROUBLESHOOTING CHART...362
D-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME)...366
D-2 ENGINE DOES NOT START...367
(1) ENGINE DOES NOT TURN...367
(2) ENGINE TURNS BUT NO EXHAUST SMOKE COMES OUT (FUEL IS NOT BEING INJECTED)...368
(3) EXHAUST SMOKE COMES OUT, BUT ENGINE DOES NOT START (FUEL IS BEING INJECTED)...369
D-3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR)...370
D-4 ENGINE STOPS DURING OPERATIONS...371
D-5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING)...372
D-6 ENGINE LACKS OUTPUT (NO POWER)...373
D-7 EXHAUST SMOKE IS BLACK (INCOMPLETE COMBUSTION)...374
D-8 OIL CONSUMPTION IS EXCESSIVE (OR EXHAUST SMOKE IS BLUE)...375
D-9 OIL BECOMES CONTAMINATED QUICKLY...376
D-10 FUEL CONSUMPTION IS EXCESSIVE...377
D-11 OIL IS IN COOLING WATER, OR WATER SPURTS BACK, OR WATER LEVEL GOES DOWN...378
D-12 OIL PRESSURE CAUTION LAMP LIGHTS UP (DROP IN OIL PRESSURE)...379
D-13 OIL LEVEL RISES (WATER, FUEL IN OIL)...380
D-14 WATER TEMPERATURE BECOMES TOO HIGH (OVERHEATING)...381
D-15 ABNORMAL NOISE IS MADE...382
D-16 VIBRATION IS EXCESSIVE...383
TROUBLESHOOTING OF ENGINE SYSTEM (D MODE)...385
POINTS TO REMEMBER WHEN TROUBLESHOOTING...386
METHOD OF USING TROUBLESHOOTING CHARTS...387
D-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME)...390
D-2 ENGINE DOES NOT START...391
D-3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR)...394
D-4 ENGINE STOPS DURING OPERATIONS...395
D-5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING)...396
D-6 ENGINE LACKS OUTPUT (OR LACKS POWER)...397
D-7 EXHAUST SMOKE IS BLACK (INCOMPLETE COMBUSTION)...398
D-8 OIL CONSUMPTION IS EXCESSIVE (OR EXHAUST SMOKE IS BLUE)...399
D-9 OIL BECOMES CONTAMINATED QUICKLY...400
D-10 FUEL CONSUMPTION IS EXCESSIVE...401
D-11 OIL IS IN COOLING WATER (OR WATER SPURTS BACK, OR WATER LEVEL GOES DOWN)...402
D-12 OIL PRESSURE CAUTION LAMP LIGHTS UP (DROP IN OIL PRESSURE)...403
D-13 OIL LEVEL RISES (WATER, FUEL IN OIL)...404
D-14 WATER TEMPERATURE BECOMES TOO HIGH (OVERHEATING)...405
D-15 ABNORMAL NOISE IS MADE...406
D-16 VIBRATION IS EXCESSIVE...407
TROUBLESHOOTING OF ENGINE CONTROLLER SYSTEM (G MODE)...409
ERROR CODE DISPLAYS AND POINTS TO REMEMBER WHEN TROUBLESHOOTING...411
ACTION TAKEN BY CONTROLLER AND CONDITION OF MACHINE WHEN ERROR CODE IS DISPLAYED...414
ENGINE CONTROLLER RELATED JUDGEMENT TABLE...422
ELECTRICAL CIRCUIT DIAGRAM FOR ENGINE CONTROLLER SYSTEM...424
G-1 ERROR CODE [C01b] [ABNORMALITY IN NE REVOLUTION SENSOR SYSTEM]...426
G-2 ERROR CODE [C01C] [ABNORMALITY IN G REVOLUTION SENSOR SYSTEM]...427
G-3 ERROR CODE [C020] [ABNORMALITY IN MODEL SELECTION SYSTEM]...428
G-4 ERROR CODE [C022] [OVERRUN]...429
G-5 ERROR CODE [C023] [OVERHEAT]...429
G-6 ERROR CODE [C024] [DROP IN OIL PRESSURE]...430
G-7 ERROR CODE [C030] [ABNORMALITY IN IDLING VALIDATION SIGNAL SYSTEM]...431
G-8 ERROR CODE [C031] [ABNORMALITY IN ACCELERATOR SENSOR SYSTEM]...433
G-9 ERROR CODE [C034] [ABNORMALITY IN HIGH ENGINE COOLANT TEMPERATURE SENSOR SYSTEM]...435
G-10 ERROR CODE [C036] [ABNORMALITY IN OIL PRESSURE SWITCH SYSTEM]...436
G-11 ERROR CODE [C03C] [ABNORMALITY IN BOOST PRESSURE SENSOR SYSTEM]...438
G-12 ERROR CODE [C03d] [ABNORMALITY IN FUEL TEMPERATURE SENSOR SYSTEM]...439
G-13 ERROR CODE [C050] [ABNORMALITY IN PREHEATING RELAY CONNECTING POINT SYSTEM]...440
G-14 ERROR CODE [C051] [ABNORMALITY IN PREHEATING RELAY COIL SYSTEM]...441
G-15 ERROR CODE [C054] [SHORT CIRCUIT IN STARTING SWITCH C SYSTEM]...442
G-16 ERROR CODE [C056] [POWER SOURCE SYSTEM ABNORMALITY 1]...443
G-17 ERROR CODE [C057] [POWER SOURCE SYSTEM ABNORMALITY 2]...445
G-18 ERROR CODE [C05A] [ABNORMALITY IN FUEL INJECTION QUANTITY CONTROL SWITCH SIGNAL]...446
G-19 ERROR CODE [C06A] [ABNORMALITY IN LOW ENGINE COOLANT TEMPERATURE SENSOR SYSTEM]...446
G-20 ERROR CODE [C070] [EXCESS CURRENT IN FUEL SUPPLY PUMP PCV1 SYSTEM]...447
G-21 ERROR CODE [C071] [EXCESS CURRENT IN FUEL SUPPLY PUMP PCV2 SYSTEM]...448
G-22 ERROR CODE [C074] [DISCONNECTION IN FUEL SUPPLY PUMP PCV1 SYSTEM]...449
G-23 ERROR CODE [C075] [DISCONNECTION IN FUEL SUPPLY PUMP PCV2 SYSTEM]...450
G-24 ERROR CODE [C077] [ABNORMALITY IN COMMON RAIL FUEL PRESSURE SENSOR SYSTEM]...451
G-25 ERROR CODE [C079] [COMMON RAIL HIGH FUEL PRESSURE ABNORMALITY 1] ERROR CODE [C07A] [COMMON RAIL HIGH FUEL PRESSURE ABNORMALITY 2]...452
G-26 ERROR CODE [C07C] [FUEL SUPPLY PUMP NON-FORCE FEED 1] ERROR CODE [C07b] [FUEL SUPPLY PUMP NON-FORCE FEED 2]...453
G-27 ERROR CODE [C07d] [ABNORMALITY IN COMMON RAIL FUEL PRESSURE]...455
G-28 ERROR CODE [C080] [DEFECTIVE CONTROLLER]...455
G-29 ERROR CODE [C081] [DISCONNECTION IN NO.1 FUEL INJECTOR <A> SYSTEM]...456
G-30 ERROR CODE [C082] [DISCONNECTION IN NO.2 FUEL INJECTOR <E> SYSTEM]...457
G-31 ERROR CODE [C083] [DISCONNECTION IN NO.3 FUEL INJECTOR <C> SYSTEM]...458
G-32 ERROR CODE [C084] [DISCONNECTION IN NO.4 FUEL INJECTOR <F> SYSTEM]...459
G-33 ERROR CODE [C085] [DISCONNECTION IN NO.5 FUEL INJECTOR <B> SYSTEM]...460
G-34 ERROR CODE [C086] [DISCONNECTION IN NO.6 FUEL INJECTOR <D> SYSTEM]...461
G-35 ERROR CODE [C08A] [SHORT CIRCUIT IN NO.1 <A>, NO.2 <E>, NO.3 <C> FUEL INJECTOR SYSTEM]...462
G-36 ERROR CODE [C08b] [SHORT CIRCUIT IN NO.4 <F>, NO.5 <B>, NO.6 <D> FUEL INJECTOR SYSTEM]...465
TROUBLESHOOTING OF ENGINE ELECTRICAL SYSTEM FOR START/STOP SYSTEM (ENG MODE)...469
SERIAL NO.:1001-1599...470
ENG-1 ENGINE DOES NOT START (FUEL INJECTION PUMP STOP LEVER STAYS AT STOP POSITION)...470
ENG-2 ENGINE DOES NOT STOP (FUEL INJECTION PUMP STOP LEVER STAYS AT RUN POSITION)...477
SERIAL NO.:1601 AND UP...482
ENG-1 ENGINE DOES NOT START (STARTING MOTOR DOES NOT ROTATE)...482
ENG-2 ENGINE DOES NOT START OR IT HUNTS (RUNS ROUGH)...486
TROUBLESHOOTING OF TRANSMISSION CONTROLLER SYSTEM (A MODE)...487
POINTS TO REMEMBER WHEN CARRYING OUT TROUBLESHOOTING OF TRANSMISSION CONTROLLER SYSTEM...489
JUDGMENT TABLE FOR TRANSMISSION CONTROLLER, TRANSMISSION RELATED PARTS...490
A-1 ABNORMALITY IN POWER SOURCE...492
a) [ ][DEFECTIVE CONTROLLER POWER SOURCE]IS DISPLAYED(ALL LEDS OFF)...492
b) [0.1](DROP IN VOLTAGE OF CONTROLLER)IS DISPLAYED...496
c) [0.2](DROP IN VOLTAGE OF SOLENOID)IS DISPLAYED...497
A-2 [0.3](NEUTRAL SAFETY)IS DISPLAYED...499
A-3 CONTROLLER SYSTEM...501
a) [ . ][ONLY DOT LIGHTS UP] OR [0.4](DATA ERROR)IS DISPLAYED...501
b) [0.5](DOUBLE ENGAGEMENT FOR CLUTCH)IS DISPLAYED...501
A-4 [0.6](DISCONNECTION,SHORT CIRCUIT,SHORT CIRCUIT WITH GROUND IN TRANSMISSION CUT RELAY)IS DISPLAYED...502
A-5 [0.8](DISCONNECTION,SHORT CIRCUIT,SHORT CIRCUIT WITH GROUND IN AUTOMATIC RETARDER SOLENOID)IS DISPLAYED...506
A-6 [0.9](DISCONNECTION,SHORT CIRCUIT,SHORT CIRCUIT WITH GROUND IN EXHAUST BRAKE SOLENOID)IS DISPLAYED...510
A-7 SPEED SENSOR SYSTEM...514
a) [1.0](DISCONNECTION IN ENGINE SPEED SENSOR) OR [6.0](DEFECTIVE OUTPUT OF ENGINE SPEED SENSOR)...514
b) [1.1](DISCONNECTION IN TRANSMISSION INPUT SHAFT SPEED SENSOR) OR [6.1](DEFECTIVE OUTPUT OF TRANSMISSION INPUT SHAFT SPEED SENSOR)...517
c) [1.2](DISCONNECTION IN TRANSMISSION INTERMEDIATE SHAFT SPEED SENSOR) OR [6.2](DEFECTIVE OUTPUT OF TRANSMISSION INTERMEDIATE SHAFT SPEED SENSOR)...518
d) [1.3](DISCONNECTION IN TRANSMISSION OUTPUT SHAFT SPEED SENSOR) OR [6.3](DEFECTIVE OUTPUT OF TRANSMISSION OUTPUT SHAFT SPEED SENSOR)...519
A-8 SLIPPING CLUTCH OR SPEED SENSOR SYSTEM...520
a) [2.1][DEFECTIVE LOCK-UP CLUTCH SYSTEM] IS DISPLAYED...520
b) [2.2][FAILURE IN HI CLUTCH OR INPUT SHAFT SPEED SENSOR SYSTEM] OR [2.3][FAILURE IN LO CLUTCH OR INPUT SHAFT SPEED SENSOR SYSTEM] IS DISPLAYED...520
c) [2.4][FAILURE IN 1ST CLUTCH OR OUTPUT SHAFT SPEED SENSOR SYSTEM] OR [2.5][FAILURE IN 2ND CLUTCH OR OUTPUT SHAFT SPEED SENSOR SYSTEM] OR [2.6][FAILURE IN 3RD CLUTCH OR OUTPUT SHAFT SPEED SENSOR SYSTEM] OR [2.8][FAILURE IN R CLUTCH OR OUTPUT SHAFT SPEED SENSOR SYSTEM] IS DISPLAYED...520
A-9 [A.1]ABNORMALITY IN MODEL SELECTION SIGNAL IS DISPLAYED...521
A-10 ABNORMALITY IN SHIFT LEVER SYSTEM...522
a) [0.7][SHORT CIRCUIT WITH 12V OUTPUT CIRCUIT] IS DISPLAYED...522
b) [1.5][SHORT CIRCUIT,SHORT CIRCUIT WITH GROUND IN LEVER SIGNAL SYSTEM] IS DISPLAYED...523
c) [1.6][DISCONNECTION IN LEVER SIGNAL SYSTEM] IS DISPLAYED...527
A-11 [A.1][DISCONNECTION IN ACCELERATOR SIGNAL,DEFECTIVE ADJUSTMENT,DISCONNECTED LINK] IS DISPLAYED...529
A-12 [1.9][SHORT CIRCUIT WITH GROUND IN TRANSMISSION VALVE OIL TEMPERATURE SENSOR] IS DISPLAYED...533
A-13 PRESSURE CONTROL VALVE SYSTEM...534
a) [3.1][DEFECTIVE LOCK-UP CLUTCH PRESSURE CONTROL VALVE SYSTEM Ⅰ] OR [3.2][DEFECTIVE HI CLUTCH PRESSURE CONTROL VALVE SYSTEM Ⅰ]...534
a) [3.3][DEFECTIVE LO CLUTCH PRESSURE CONTROL VALVE SYSTEM Ⅰ] OR [3.4][DEFECTIVE 1ST CLUTCH PRESSURE CONTROL VALVE SYSTEM Ⅰ]...534
a) [3.5][DEFECTIVE 2ND CLUTCH PRESSURE CONTROL VALVE SYSTEM Ⅰ] OR [3.6][DEFECTIVE 3RD CLUTCH PRESSURE CONTROL VALVE SYSTEM Ⅰ]...534
a) [3.8][DEFECTIVE R CLUTCH PRESSURE CONTROL VALVE SYSTEM Ⅰ] IS DISPLAYED...534
b) [4.1][DEFECTIVE LOCK-UP CLUTCH PRESSURE CONTROL VALVE SYSTEM Ⅱ] OR [4.2][DEFECTIVE HI CLUTCH PRESSURE CONTROL VALVE SYSTEM Ⅱ]...535
b) [4.3][DEFECTIVE LO CLUTCH PRESSURE CONTROL VALVE SYSTEM Ⅱ] OR [4.4][DEFECTIVE 1ST CLUTCH PRESSURE CONTROL VALVE SYSTEM Ⅱ]...535
b) [4.5][DEFECTIVE 2ND CLUTCH PRESSURE CONTROL VALVE SYSTEM Ⅱ] OR [4.6][DEFECTIVE 3RD CLUTCH PRESSURE CONTROL VALVE SYSTEM Ⅱ]...535
b) [4.8][DEFECTIVE R CLUTCH PRESSURE CONTROL VALVE SYSTEM Ⅱ] IS DISPLAYED...535
b1) CHECKING FILL SIGNAL SYSTEM...535
b2) CHECKING WHEN [4.2] OR [4.3] IS DISPLAYED...536
b3) CHECKING WHEN [4.4] OR [4.6] OR [4.8] IS DISPLAYED...536
A-14 FLOW DETECTION VALVE SYSTEM...537
[5.1][DISCONNECTION IN LOCK-UP CLUTCH FLOW CONTROL VALVE SYSTEM] OR [5.2][DISCONNECTION IN HI CLUTCH FLOW CONTROL VALVE SYSTEM]...537
[5.3][DISCONNECTION IN LO CLUTCH FLOW CONTROL VALVE SYSTEM] OR [5.4][DISCONNECTION IN 1ST CLUTCH FLOW CONTROL VALVE SYSTEM]...537
[5.5][DISCONNECTION IN 2ND CLUTCH FLOW CONTROL VALVE SYSTEM] OR [5.6][DISCONNECTION IN 3RD CLUTCH FLOW CONTROL VALVE SYSTEM]...537
[5.8][DISCONNECTION IN R CLUTCH FLOW CONTROL VALVE SYSTEM] IS DISPLAYED...537
A-15 PRESSURE CONTEOL SOLENOID SYSTEM...538
a) [7.1][SHORT CIRCUIT IN LOCK-UP CLUTCH PRESSURE CONTROL SOLENOID SYSTEM] OR [7.2][SHORT CIRCUIT IN HI CLUTCH PRESSURE CONTROL SOLENOID SYSTEM]...538
a) [7.3][SHORT CIRCUIT IN LO CLUTCH PRESSURE CONTROL SOLENOID SYSTEM] OR [7.4][SHORT CIRCUIT IN 1ST CLUTCH PRESSURE CONTROL SOLENOID SYSTEM]...538
a) [7.5][SHORT CIRCUIT IN 2ND CLUTCH PRESSURE CONTROL SOLENOID SYSTEM] OR [7.6][SHORT CIRCUIT IN 3RD CLUTCH PRESSURE CONTROL SOLENOID SYSTEM]...538
a) [7.8][SHORT CIRCUIT IN R CLUTCH PRESSURE CONTROL SOLENOID SYSTEM] IS DISPLAYED...538
b) [9.1][SHORT CIRCUIT IN LOCK-UP CLUTCH PRESSURE CONTROL SOLENOID SYSTEM] OR [9.2][SHORT CIRCUIT IN HI CLUTCH PRESSURE CONTROL SOLENOID SYSTEM]...540
b) [9.3][SHORT CIRCUIT IN LO CLUTCH PRESSURE CONTROL SOLENOID SYSTEM] OR [9.4][SHORT CIRCUIT IN 1ST CLUTCH PRESSURE CONTROL SOLENOID SYSTEM]...540
b) [9.5][SHORT CIRCUIT IN 2ND CLUTCH PRESSURE CONTROL SOLENOID SYSTEM] OR [9.6][SHORT CIRCUIT IN 3RD CLUTCH PRESSURE CONTROL SOLENOID SYSTEM]...540
b) [9.8][SHORT CIRCUIT IN R CLUTCH PRESSURE CONTROL SOLENOID SYSTEM] IS DISPLAYED...540
A-16 PRESSURE SENSOR SYSTEM...542
a) [8.1][DEFECTIVE OUTPUT OF TORQUE CONVERTER INLET PRESSURE SENSOR] OR [8.3][DEFECTIVE OUTPUT OF TORQUE CONVERTER INLET PRESSURE SENSOR] IS DISPLAYED...542
b) [8.2][DEFECTIVE OUTPUT OF TORQUE CONVERTER OUTLET PRESSURE SENSOR] OR [8.4][DEFECTIVE OUTPUT OF TORQUE CONVERTER OUTLET PRESSURE SENSOR] IS DISPLAYED...543
ELECTRICAL CIRCUIT DIAGRAM FOR A MODE SYSTEM...544
TROUBLESHOOTING FOR METER PANEL SYSTEM (E MODE)...557
E-1 WATER TEMPERATURE GAUGE GIVES NO DISPLAY OR GIVES ABNORMAL DISPLAY...558
a) GIVES NO DISPLAY...558
b) GIVES ABNORMAL DISPLAY...558
E-2 TORQUE CONVERTER OIL TEMPERATURE GAUGE GIVES NO DISPLAY OR GIVES ABNORMAL DISPLAY...560
a) GIVES NO DISPLAY...560
b) GIVES ABNORMAL DISPLAY...560
E-3 RETARDER OIL TEMPERATURE GAUGE GIVES NO DISPLAY OR GIVES ABNORMAL DISPLAY...562
a) GIVES NO DISPLAY...562
b) GIVES ABNORMAL DISPLAY...562
E-4 FUEL GAUGE GIVES NO DISPLAY OR GIVES ABNORMAL DISPLAY...564
a) GIVES NO DISPLAY...564
b) GIVES ABNORMAL DISPLAY...564
E-5 SERVICE METER DOES NOT MOVE (SERIAL NO.:1001-1599)...566
E-6 SERVICE METER AND TACHOMETOR DOES NOT MOVE (SERIAL NO.:1601 AND UP)...567
TROUBLESHOOTING FOR PILOT LAMP SYSTEM(F MODE)...569
F-1 ABNORMALITY IN LIGHTING UP OF RETARDER PILOT LAMP...570
F-2 ABNORMALITY IN LIGHTING UP OF PARKING BRAKE PILOT LAMP...576
F-3 ABNORMALITY IN LIGHTING UP OF FRONT BRAKE OIL LEVEL PILOT LAMP...582
F-4 ABNORMALITY IN LIGHTING UP OF REAR BRAKE CAUTION LAMP...588
F-5 ABNORMALITY IN LIGHTING UP OF ENGINE OIL PRESSURE PILOT LAMP...594
F-6 ABNORMALITY IN LIGHTING UP OF BATTERY CHARGE CAUTION LAMP...598
ELECTRICAL CIRCUIT DIAGRAM FOR F MODE SYSTEM...604
TROUBLESHOOTING OF AIR SYSTEM ON MACHINE AIR COMPRESSOR(C MODE)...607
TROUBLESHOOTING OF AIR SYSTEM ON MACHINE AIR COMPRESSOR...608
BASIC AIR CIRCUIT OF AIR COMPRESSOR...608
C-1 AIR PRESSURE DOES NOT RISE AT ALL...609
C-2 AIR PRESSURE DOES NOT RISE TO SPECIFIED PRESSURE RANGE(GREEN RANGE OF AIR GAUGE)...610
C-3 AIR PRESSURE RISES BUT CHARGING TAKES A LONG TIME...611
C-4 AIR BLOWS OUT FROM SAFETY VALVE...612
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEMS(H MODE)...613
METHOD OF USING MATRIX TROUBLESHOOTING TABLES...614
H-1 MACHINE DOES NOT START...616
H-2 MACHINE DOES NOT TRAVEL SMOOTHLY (MACHINE JERKS)...618
H-3 LOCK-UP CLUTCH CANNOT BE DISENGAGED (ENGINE STALLS)...618
H-4 EXCESSIVE SHOCK WHEN STARTING OR SHIFTING...619
H-5 TRANSMISSION DOES NOT SHIFT UP...619
H-6 MACHINE LACKS POWER OR SPEED WHEN TRAVELING...620
H-7 TIME LAG IS EXCESSIVE WHEN STARTING OR SHIFTING GEAR...626
H-8 TORQUE CONVERTER OIL TEMPERATURE IS HIGH...628
H-9 TORQUE CONVERTER OIL PRESSURE IS LOW...629
H-10 FRONT BRAKE IS INEFFECTIVE,OR EFFECTIVE ONLY ON ONE SIDE...630
H-11 REAR BRAKE IS INEFFECTIVE,OR EFFECTIVE ONLY ON ONE SIDE...631
H-12 STEERING WHEEL IS HEAVY...632
H-13 STEERING WHEEL DOES NOT WORK...633
H-14 STEERING WHEEL VIBRATES...633
H-15 HOIST CYLINDER LACKS LIFTING FORCE(LIFTING SPEED)...634
H-16 HOIST CYLINDER DOES NOT WORK...635
H-17 EXCESSIVE HYDRAULIC DRIFT OF DUMP BODY...636
TROUBLESHOOTING OF ARSC [AUTOMATIC RETARDER SPEED CONTROLLER] SYSTEM (R MODE)...637
OUTLINE...638
ELECTRICAL CIRCUIT DIAGRAM FOR ARSC (AUTOMATIC RETARDER SPEED CONTROLLER) SYSTEM...642
R-1 0.1 (ABNORMALITY IN POWER SOURCE VOLTAGE) IS DISPLAYED...644
R-2 1.0 (DISCONNECTION IN ENGINE SPEED SENSOR SYSTEM) IS DISPLAYED...645
R-3 1.3 (DISCONNECTION IN TRANSMISSION OUTPUT SHAFT SPEED SENSOR SYSTEM) IS DISPLAYED...646
R-4 1.5 (FAILURE IN RETARDER OIL TEMPERATURE SENSOR SYSTEM) IS DISPLAYED...647
R-5 1.7 (FAILURE IN ACCELERATOR SIGNAL SYSTEM) IS DISPLAYED...648
R-6 1.8 (FAILURE IN SUSPENSION PRESSURE SENSOR "LEFT" SYSTEM) IS DISPLAYED...649
R-7 1.9 (FAILURE IN SUSPENSION PRESSURE SENSOR "RIGHT" SYSTEM) IS DISPLAYED...650
R-8 4.2 (DISCONNECTION IN EXHAUST BRAKE SELECTOR SIGNAL SYSTEM) IS DISPLAYED...651
R-9 4.3 (DISCONNECTION IN ARSC CAUTION LAMP SYSTEM) IS DISPLAYED...652
R-10 4.4 (DISCONNECTION IN READY LAMP SYSTEM) IS DISPLAYED...653
R-11 4.5 (DISCONNECTION IN PANEL CAUTION AND BUZZER SYSTEM) IS DISPLAYED...654
R-12 5.2 (SHORT CIRCUIT WITH GROUND IN EXHAUST BRAKE SELECTOR SIGNAL OUTPUT SYSTEM) IS DISPLAYED...655
R-13 5.3 (SHORT CIRCUIT WITH GROUND IN ARSC CAUTION LAMP SYSTEM) IS DISPLAYED...656
R-14 5.4 (SHORT CIRCUIT WITH GROUND IN READY OUTPUT CIRCUIT SYSTEM) IS DISPLAYED...657
R-15 5.5 (SHORT CIRCUIT WITH GROUND IN PANEL CAUTION LAMP AND BUZZER OUTPUT SYSTEM) IS DISPLAYED...658
R-16 6.0 (FAILURE IN ENGINE SPEED SYSTEM) IS DISPLAYED...659
R-17 7.0 (DISCONNECTION IN TRAVEL SPEED DISPLAY UP OUTPUT SYSTEM) IS DISPLAYED...660
R-18 7.1 (DISCONNECTION IN TRAVEL SPEED DISPLAY DOWN OUTPUT SYSTEM) IS DISPLAYED...661
R-19 7.2 (DISCONNECTION IN TRAVEL SPEED DISPLAY CLEAR OUTPUT SYSTEM) IS DISPLAYED...662
R-20 7.3 (SHORT CIRCUIT WITH GROUND IN TRAVEL SPEED DISPLAY UP OUTPUT SYSTEM) IS DISPLAYED...663
R-21 7.4 (SHORT CIRCUIT WITH GROUND IN TRAVEL SPEED DISPLAY DOWN OUTPUT SYSTEM) IS DISPLAYED...664
R-22 7.5 (SHORT CIRCUIT WITH GROUND IN TRAVEL SPEED DISPLAY CLEAR OUTPUT SYSTEM) IS DISPLAYED...665
R-23 8.1 (SHORT CIRCUIT WITH GROUND IN PRESSURE CONTROL VALVE SYSTEM) IS DISPLAYED...666
R-24 8.3 (DISCONNECTION IN PRESSURE CONTROL VALVE SYSTEM) IS DISPLAYED...667
R-25 8.5 (FAILURE IN PRESSURE CONTROL VALVE (PRESSURE CONTROL VALVE REMAINS OPEN) IS DISPLAYED...668
R-26 8.7 (FAILURE IN PRESSURE CONTROL VALVE (PRESSURE CONTROL VALVE DOES NOT OPEN) IS DISPLAYED...669
R-27 8.9 (SHORT CIRCUIT WITH GROUND IN PRESSURE SWITCH VALVE SYSTEM) IS DISPLAYED...670
R-28 9.0 (DISCONNECTION IN PRESSURE SWITCH VALVE SYSTEM) IS DISPLAYED...671
R-29 9.1 (FAILURE IN PRESSURE SWITCH VALVE SYSTEM (REMAINS OPEN)) IS DISPLAYED...672
R-30 9.2 (FAILURE IN PRESSURE SWITCH VALVE SYSTEM (DOES NOT OPEN)) IS DISPLAYED...673
R-31 9.3 (DISCONNECTION IN SYSTEM SWITCH SYSTEM) IS DISPLAYED...674
R-32 9.4 (SHORT CIRCUIT WITH GROUND IN SYSTEM SWITCH SYSTEM) IS DISPLAYED...675
R-33 9.5 (DISCONNECTION, SHORT CIRCUIT WITH GROUND IN TRAVEL SPEED SETTING SWITCH SYSTEM) IS DISPLAYED...676
R-101 SET SPEED CANNOT BE SET...677
R-102 FAILURE CODE IS ALWAYS CLEARED (CONTROLLER DISPLAY WINDOW ALWAYS SHOWS "--") OR FAILURE CODE CANNOT BE CLEARED...680
R-103 EFFECT OF RETARDER IS TOO STRONG WHEN MACHINE IS EMPTY, OR TOO WEAK WHEN MACHINE IS LOADED (DOES NOT JUDGE LOADED/UNLOADED CONDITION PROPERLY)...681
R-104 ABNORMALITY APPEARS IN OTHER CONTROLLER...681
R-105 WHEN TRAVELING DOWNHILL, EVEN WHEN SET SPEED IS EXCEEDED, NO CONTROL IS CARRIED OUT...682
R-106 MONITOR LAMP (BUZZER) STAYS ON (OR OFF)...683
R-107 READY LAMP DOES NOT LIGHT UP (OR STAYS LIGHTED UP)...684
R-108 EXHAUST BRAKE DOES NOT WORK PROPERLY [EXHAUST BRAKE IS ACTUATED WHEN EXHAUST BRAKE SWITCH IS OFF; OR EXHAUST BRAKE IS NOT ACTUATED WHEN EXHAUST BRAKE SWITCH IS ON]...686
R-109 RETARDER LAMP DOES NOT LIGHT UP, OR STAYS LIGHTED UP...688
R-110 TRAVEL SPEED DISPLAY ALWAYS GIVES DISPLAY (OR DOES NOT GIVE ANY DISPLAY)...689
30 DISASSEMBLY AND ASSEMBLY...691
SPECIAL TOOL LIST...694
SKETCHES OF SPECIAL TOOLS...698
STARTING MOTOR...700
REMOVAL AND INSTALLATION...700
ALTERNATOR...701
REMOVAL AND INSTALLATION...701
ENGINE OIL COOLER...702
REMOVAL AND INSTALLATION...702
FUEL INJECTION PUMP...703
REMOVAL AND INSTALLATION...703
FUEL SUPPLY PUMP...704
REMOVAL...704
INSTALLATION...706
AIR COMPRESSOR...708
REMOVAL AND INSTALLATION...708
AIR CONDITIONER COMPRESSOR ...710
REMOVAL AND INSTALLATION...710
AIR CONDITIONER CONDENSER...712
REMOVAL AND INSTALLATION...712
WATER PUMP...713
REMOVAL AND INSTALLATION...713
AFTERCOOLER CORE...714
REMOVAL AND INSTALLATION...714
EXHAUST BRAKE CYLINDER...715
REMOVAL AND INSTALLATION...715
TURBOCHARGER...716
REMOVAL AND INSTALLATION...716
NOZZLE HOLDER...717
REMOVAL AND INSTALLATION...717
FUEL INJECTOR...718
REMOVAL...718
INSTALLATION...720
NOZZLE TIP...722
REMOVAL...722
INSTALLATION...724
CYLINDER HEAD...726
REMOVAL...726
INSTALLATION...728
ENGINE FRONT SEAL...739
REMOVAL...739
INSTALLATION...740
ENGINE REAR SEAL...742
REMOVAL...742
INSTALLATION...743
ENGINE...746
REMOVAL...746
INSTALLATION...749
RADIATOR...754
REMOVAL...754
INSTALLATION...756
OIL COOLER...761
REMOVAL AND INSTALLATION...761
OUTPUT SHAFT...762
REMOVAL AND INSTALLATION...762
DISASSEMBLY...763
ASSEMBLY...765
TORQUE CONVERTER, TRANSMISSION...769
REMOVAL ...769
INSTALLATION...771
DISCONNECTION...773
CONNECTION...774
TORQUE CONVERTER...775
DISASSEMBLY...775
ASSEMBLY...781
PTO...787
DISASSEMBLY...787
ASSEMBLY...788
TRANSMISSION...790
DISASSEMBLY...790
ASSEMBLY...808
TRANSMISSION CONTROL VALVE (ECMV)...827
REMOVAL AND INSTALLATION...827
TRANSMISSION, MAIN RELIEF VALVE...828
REMOVAL AND INSTALLATION...828
DIFFERENTIAL...829
REMOVAL...829
INSTALLATION...830
DISASSEMBLY...831
ASSEMBLY...834
FRONT WHEEL...842
REMOVAL AND INSTALLATION...842
REAR WHEEL...843
REMOVAL AND INSTALLATION...843
FRONT BRAKE CALIPER PAD...844
REMOVAL AND INSTALLATION...844
FRONT BRAKE CALIPER...845
REMOVAL AND INSTALLATION...845
DISASSEMBLY...846
ASSEMBLY...847
FRONT WHEEL HUB...849
DISASSEMBLY...849
ASSEMBLY...850
FINAL DRIVE CARRIER...853
REMOVAL AND INSTALLATION...853
DISASSEMBLY AND ASSEMBLY...854
REAR WHEEL BRAKE ...855
REMOVAL...855
INSTALLATION...857
REAR BRAKE...859
DISASSEMBLY...859
ASSEMBLY...861
FRONT SUSPENSION CYLINDER...864
REMOVAL...864
INSTALLATION...865
DISASSEMBLY...866
ASSEMBLY...867
REAR SUSPENSION CYLINDER...868
REMOVAL AND INSTALLATION...868
DISASSEMBLY...869
ASSEMBLY...870
AIR GOVERNOR...871
REMOVAL AND INSTALLATION...871
DISASSEMBLY AND ASSEMBLY...872
BRAKE VALVE...873
REMOVAL AND INSTALLATION...873
DISASSEMBLY...874
ASSEMBLY...876
PARKING BRAKE SPRING CYLINDER...878
REMOVAL AND INSTALLATION...878
PARKING BRAKE CHAMBER...879
DISASSEMBLY...879
ASSEMBLY...880
FRONT BRAKE CHAMBER...881
REMOVAL AND INSTALLATION...881
DISASSEMBLY...882
ASSEMBLY...884
REAR BRAKE CHAMBER...886
REMOVAL AND INSTALLATION...886
DISASSEMBLY...887
ASSEMBLY...891
SLACK ADJUSTER...894
REMOVAL AND INSTALLATION...894
DISASSEMBLY AND ASSEMBLY...895
AIR DRIER (DESICCANT TYPE)...896
REMOVAL AND INSTALLATION...896
DISASSEMBLY AND ASSEMBLY...897
TRANSMISSION CONTROL, RETARDER BRAKE COOLING PUMP AND HOIST, STEERING PUMP...914
REMOVAL AND INSTALLATION...914
EMERGENCY STEERING MOTOR PUMP...915
REMOVAL AND INSTALLATION...915
STEERING VALVE...916
REMOVAL AND INSTALLATION...916
DISASSEMBLY...917
ASSEMBLY...922
DEMAND VALVE...930
REMOVAL AND INSTALLATION...930
DISASSEMBLY AND ASSEMBLY...931
RELIEF VALVE...932
DISASSEMBLY AND ASSEMBLY...932
HOIST VALVE...933
REMOVAL AND INSTALLATION...933
DISASSEMBLY...934
ASSEMBLY...935
STEERING CYLINDER...936
REMOVAL AND INSTALLATION...936
DISASSEMBLY...937
ASSEMBLY...939
HOIST CYLINDER...941
REMOVAL AND INSTALLATION...941
DISASSEMBLY...942
ASSEMBLY...945
DUMP BODY...948
REMOVAL AND INSTALLATION...948
SHIM OF DUMP BODY...949
PROCEDURE FOR ADJUSTING...949
TRANSMISSION CONTROLLER...950
REMOVAL AND INSTALLATION...950
ENGINE CONTROLLER...951
REMOVAL AND INSTALLATION...951
SHIFT INDICATOR CONTROLLER...952
REMOVAL AND INSTALLATION...952
PARKING BRAKE SHOE...953
REMOVAL ...953
INSTALLATION...954
40 MAINTENANCE STANDARD...955
DAMPER...957
TORQUE CONVERTER...958
TRANSMISSION...960
MAIN RELIEF VALVE...963
TRANSMISSION VALVE, ECMV...964
FRONT AXLE...965
DIFFERENTIAL...967
FINAL DRIVE...970
FRONT BRAKE...971
REAR BRAKE...972
PARKING BRAKE...974
REAR BRAKE CHAMBER...975
FRONT BRAKE CHAMBER...976
SLACK ADJUSTER...977
HYDRAULIC PUMP...978
STEERING, HOIST PUMP...979
STEERING CYLINDER...980
DEMAND VAVLE...981
CROSSOVER RELIEF VALVE...981
HOIST VALVE...982
HOIST CYLINDER...983
STEERING LINKAGE...984
REAR AXLE SUPPORT...985
FRONT SUSPENSION CYLINDER...986
REAR SUSPENSION CYLINDER...987
90 OTHERS...989
AIR CIRCUIT DIAGRAM (STANDARD SPECIFICATION SERIAL NO.:1001-1200)...991
AIR CIRCUIT DIAGRAM (STANDARD SPECIFICATION SERIAL NO.:1201-1600)...993
AIR CIRCUIT DIAGRAM (EMERGENCY BRAKE SPECIFICATION SERIAL NO.:1001-1200)...995
AIR CIRCUIT DIAGRAM (EMERGENCY BRAKE SPECIFICATION SERIAL NO.:1201-1600)...997
AIR CIRCUIT DIAGRAM (EMERGENCY BRAKE SPECIFICATION SERIAL NO.:1601 AND UP)...999
HYDRAULIC CIRCUIT DIAGRAM FOR TORQUE CONVERTER, TRANSMISSION, AND BRAKE COOLING...1001
STEERING, HOIST HYDRAULIC CIRCUIT DIAGRAM (SERIAL NO.:1001-1200)...1003
STEERING, HOIST HYDRAULIC CIRCUIT DIAGRAM (SERIAL NO.:1201 AND UP)...1005
ELECTRIC CIRCUIT DIAGRAM (1/2) (SERIAL NO.:1001-1200)...1007
ELECTRIC CIRCUIT DIAGRAM (2/2) (SERIAL NO.:1001-1200)...1009
ELECTRIC CIRCUIT DIAGRAM (1/2) (SERIAL NO.:1201-1600)...1011
ELECTRIC CIRCUIT DIAGRAM (2/2) (SERIAL NO.:1201-1600)...1013
ELECTRIC CIRCUIT DIAGRAM (1/4) (SERIAL NO.:1601-1685)...1015
ELECTRIC CIRCUIT DIAGRAM (2/4) (SERIAL NO.:1601-1685)...1017
ELECTRIC CIRCUIT DIAGRAM (3/4) (SERIAL NO.:1601-1685)...1019
ELECTRIC CIRCUIT DIAGRAM (4/4) (SERIAL NO.:1601-1685)...1021
ELECTRIC CIRCUIT DIAGRAM (1/4) (SERIAL NO.:1686 AND UP)...1023
ELECTRIC CIRCUIT DIAGRAM (2/4) (SERIAL NO.:1686 AND UP)...1025
ELECTRIC CIRCUIT DIAGRAM (3/4) (SERIAL NO.:1686 AND UP)...1027
ELECTRIC CIRCUIT DIAGRAM (4/4) (SERIAL NO.:1686 AND UP)...1029
ELECTRIC CIRCUIT DIAGRAM FOR TRANSMISSION CONTROLLER SYSTEM...1031
ELECTRIC CIRCUIT DIAGRAM OF AIR CONDITIONER (SERIAL NO.:1001-1200)...1033
ELECTRIC CIRCUIT DIAGRAM OF AIR CONDITIONER (SERIAL NO.: 1201 – 1600)...1034
ELECTRIC CIRCUIT DIAGRAM OF AIR CONDITIONER (SERIAL NO.: 1601 AND UP)...1035
Komatsu Dump Truck HD255 Repair Service Manual
