Komatsu Dump Trucks HD1500 Repair Service Manual + Operation & Maintenance Manual + Field Assembly Manual
Complete service repair manual with Electrical Wiring Diagrams for Komatsu Dump Truck HD1500 Models, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.
Komatsu Dump Truck HD1500-5, HD1500-7 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: 14,061 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
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MAIN SECTIONS
COVER...1
FOREWORD...4
TABLE OF CONTENTS...6
SECTION A GENERAL INFORMATION INDEX...8
SECTION A2 - ...10
SECTION A3 - GENERAL SAFETY AND OPERATION - INDEX...14
GENERAL SAFETY AND OPERATION...16
Safety Rules...16
Safety Features...16
Clothing And Personal Items...16
Unauthorized Modification...16
Leaving The Operator?s Seat...16
Mounting And Dismounting...17
Fire Prevention For Fuel And Oil...17
Precautions With High Temperature Fluids...17
Asbestos Dust Hazard Prevention...17
Prevention Of Injury By Work Equipment...18
Fire Extinguisher And First Aid Kit...18
Precautions For ROPS...18
Precautions For Attachments...18
HAUL ROADS...19
PRECAUTIONS DURING OPERATION...19
BEFORE STARTING THE ENGINE...19
Fire Prevention...20
Preparing For Operation...20
Ventilation In Enclosed Areas...20
In Operator?s Cab - Before Starting The Engine...20
Mirrors, Windows, And Lights...20
OPERATING THE MACHINE...21
When Starting The Engine...21
Precautions For Starting Machine...21
Truck Operation - General...21
Traveling...22
Traveling In Reverse...22
Traveling On Slopes...22
Ensure Good Visibility...22
Operate Carefully On Snow...23
Avoid Damage To Dump Body...23
Driving Near High Voltage Cables...23
When Dumping...23
Working On Loose Ground...23
Loading The Body...23
Parking The Machine...23
TOWING...24
WORKING NEAR BATTERIES...24
Battery Hazard Prevention...24
Starting With Booster Cables...24
MAINTENANCE PRECAUTIONS...25
Warning Tag...25
Proper Tools...25
Stopping The Engine Before Service...25
Securing The Dump Body...25
DURING MAINTENANCE...27
Personnel...27
Attachments...27
Working Under The Machine...27
Keep The Machine Clean...27
Rules To Follow When Adding Fuel Or Oil...27
Radiator Water Level...27
Use Of Lighting...27
Precautions With The Battery...28
Handling High Pressure Hoses...28
Precautions With High Pressure Oil...28
Precautions When Performing Maintenance Near High Temperature Or High Pressure...28
Rotating Fan And Belts...28
Waste Materials...28
TIRES...29
Handling Tires...29
Storing Tires After Removal...29
WHEN REPAIRS ARE NECESSARY...30
ADDITIONAL JOB SITE RULES...31
OPERATING INSTRUCTIONS...32
PREPARING FOR OPERATION...32
Safety Is Thinking Ahead...32
Walk Around Inspection...32
Cold Weather Heating System...35
ENGINE START-UP SAFETY PRACTICES...36
Cold Weather Starting...36
Jump Starting...37
AFTER THE ENGINE HAS STARTED...37
MACHINE OPERATION SAFETY PRECAUTIONS...40
LOADING...41
HAULING...41
RETARDER OPERATION...42
PASSING...42
DUMPING...43
Raising the Dump Body...43
Lowering The Dump Body...44
SAFE PARKING PROCEDURES...44
TURNING OFF THE ENGINE...45
SUDDEN LOSS OF ENGINE POWER...45
Secondary Steering And Braking...45
DISABLED TRUCK DUMPING...46
Hookup...46
Raising the Body...47
Lowering the Body...47
DISABLED TRUCK STEERING AND BRAKING...48
TOWING...50
SECTION A4 - ...52
SECTION A5 - ...58
EFFECT OF SPECIAL LUBRICANTS On Fasteners and Standard Torque Values...59
STANDARD TIGHTENING TORQUES For Class 10.9 Cap screws & Class 10 Nuts...59
STANDARD TIGHTENING TORQUES For SAE Grade 5 and Grade 8 Cap screws...60
STANDARD TIGHTENING TORQUES For SAE Grade 9 Cap screws...61
Hardware Tightening Method...69
SECTION A7 - STORAGE PROCEDURES - INDEX...70
STORAGE AND IDLE MACHINE PREPARATION...72
SHORT TERM IDLE PERIODS...72
PREPARATION FOR STORAGE...72
REMOVAL FROM STORAGE...73
RECONDITIONING AN IDLE VEHICLE...75
ENGINE OPERATION...78
AFTER THE ENGINE HAS STARTED...78
SHORT TERM ENGINE STORAGE...79
Preparing the Engine...79
Removing the Engine from Long Term Storage...81
TRANSMISSION PRESERVATION AND STORAGE...81
Storage, New Transmission...81
Storage, One Year- Without Oil...81
Storage, One Year - With Oil - Normally Installed On The Truck...82
Restoring The Transmission For Service...82
SECTION B - STRUCTURES - INDEX...84
SECTION B2 - STRUCTURAL COMPONENTS - INDEX...86
STRUCTURAL COMPONENTS...88
PREPARATION...88
GRILLE, HOOD AND LADDERS...89
DECKS...90
CENTER DECK...90
Removal...90
Installation...90
RIGHT DECK AND COMPONENTS...90
Removal...90
Installation...90
LEFT DECK AND CAB...91
Installation...91
SECTION B3 - DUMP BODY - INDEX...92
DUMP BODY...94
Removal...94
Installation...96
BODY PADS...96
Removal...96
Installation...97
Body Pad Adjustment...97
BODY GUIDE...99
BODY-UP RETENTION CABLE...100
ROCK EJECTORS...100
Inspection...100
SECTION B4 - FUEL TANK - INDEX...102
FUEL TANK...104
Removal...104
Cleaning...105
Repair...105
Installation...105
FUEL GAUGE AND SENDING UNIT...106
Removal...106
Installation...106
WIGGINS QUICK FILL FUEL SYSTEM...106
FUEL RECEIVER...106
FUEL TANK BREATHER...107
Removal...107
Installation...107
Disassembly...107
Assembly...107
LEFT SIDE FILL...108
SECTION C - ENGINE - INDEX...110
SECTION C3 - COOLING SYSTEM - INDEX...112
COOLING SYSTEM...114
DESCRIPTION...114
LEAKS AND CONTAMINATION...115
RADIATOR FILL PROCEDURE...115
RADIATOR REMOVAL...116
RADIATOR REPAIR...118
Internal Inspection...118
External Cleaning...118
Disassembly...119
Cleaning and Inspection...120
Assembly...120
Pressure Testing...121
Additional Service Information...121
RADIATOR INSTALLATION...122
TRANSMISSION AND BRAKE COOLERS...123
Removal...124
Disassembly...124
Cleaning And Inspection...125
Assembly...125
Inspection...126
Installation...127
SECTION C4 - ENGINE - INDEX...128
ENGINE...130
Removal...130
Inspection...133
Installation...134
DRIVE LINE ADAPTER...135
Removal...136
Disassembly...137
Cleaning and Inspection...139
Assembly...141
Installation...145
Bearing Tools...146
SECTION C5 - AIR FILTRATION SYSTEM - INDEX...148
AIR FILTRATION SYSTEM...150
AIR CLEANER...150
Operation...150
AIR CLEANER MAINTENANCE...150
Filter Service Indicator...152
Replacing The Elements...152
MAIN FILTER CLEANING...153
PRECLEANER CLEANING...154
AIR INTAKE GUIDELINES...155
Installation...155
AIR INTAKE TROUBLESHOOTING...156
SECTION C7 - FAN CLUTCH - INDEX...158
FAN CLUTCH...160
REMOVAL & INSTALLATION TOOLING...160
FAN CLUTCH - DISASSEMBLY...163
CLEANING AND INSPECTION...173
ASSEMBLY - FAN CLUTCH...177
TEST PROCEDURE...191
SECTION D - ELECTRICAL SYSTEM - INDEX...192
SECTION D2 - BATTERIES AND STARTING SYSTEM - INDEX...194
BATTERIES AND STARTING SYSTEM...196
BATTERIES...196
MAINTENANCE AND SERVICE...196
Electrolyte Levels...196
Cleaning...196
Other Maintenance...197
ENGINE PRELUB? SYSTEM...199
OPERATION...199
Oil Pressure Switch...201
Check Valve...201
Timer Solenoid...201
MAINTENANCE...201
Prelub? System Operation...201
Prelub Pump...201
Check Valve...202
Timer Solenoid...202
PRELUB CIRCUIT TROUBLESHOOTING...203
STARTING SYSTEM...205
CRANKING MOTORS...205
Removal...205
Disassembly...206
Cleaning and Inspection...206
Armature Servicing...206
Field Coil Checks...207
Field Coil Removal...207
Solenoid Checks...209
Assembly...210
Installation...212
TROUBLESHOOTING...212
Preliminary Inspection...212
No-Load Test...212
Interpreting The Results of The Tests...213
MAGNETIC SWITCH...214
Removal...214
Installation...214
Coil Test...214
SECTION D3 - ELECTRICAL SYSTEM COMPONENTS - INDEX...216
ELECTRICAL SYSTEM COMPONENTS...218
CAB MOUNTED COMPONENTS...218
CIRCUIT BREAKERS...220
RELAY CENTER...221
FUSE PANEL...226
EXTERIOR COMPONENTS...230
BATTERY BOX...230
BATTERY DISCONNECT SWITCH...230
GROUND LEVEL SHUT OFF SWITCH...230
CONTROL POWER RELAYS...230
CIRCUIT BREAKERS...230
BATTERY EQUALIZER...230
Test...230
BODY POSITION SWITCHES...232
Proximity Switch Operation...232
Body-Up Switch Adjustment...233
Hoist Limit Switch Adjustment...233
SPEED SENSORS...235
Sensor Adjustment...236
GENERAL TROUBLESHOOTING...236
SECTION D10 - CHARGING SYSTEM - INDEX...238
CHARGING SYSTEM...240
PRIMARY CAUSES OF CHARGING SYSTEM MALFUNCTION...240
Excessive heat...240
Dirt and dust...240
Vibration...240
PREVENTIVE MAINTENANCE PROCEDURES...241
Alternator Cleanliness...241
Alternator Mounting...241
Belt Tension And Condition...241
TROUBLESHOOTING...241
ALTERNATOR PERFORMANCE TEST...241
ALTERNATOR CABLE TEST...242
VOLTAGE REGULATOR ADJUSTMENT...243
ALTERNATOR...244
Removal...244
Installation...245
SECTION D11 - AUTOMATIC TRANSMISSION CONTROLLER - INDEX...248
AUTOMATIC TRANSMISSION CONTROLLER...250
GEAR SELECTOR POSITIONS AND AUTOMATIC GEAR SHIFTING RANGES...251
TRANSMISSION OPERATING MODES...252
NETWORK DATA...252
SHIFT LOGIC...254
Shift Lever Position D, Up-Shifting...254
Shift Lever Position D, Down-Shifting...254
Shift Lever Positions 6, 5, 4, 3, 2, L...254
Shift Lever Positions R...254
Shift Lever Position N...254
Gear Shift Time Delay...254
SAFETY FUNCTIONALITY...255
Down-Shift Inhibitor Function...255
Neutral Safety Function...255
Directional Inhibit Function...255
Powertrain Overrun Prevention...255
Reverse Safety (Dump Body Raised)...255
Speed Range Limit Function (Dump Body Raised)...255
Self-diagnostic function...255
ATC REAL TIME MONITORING...256
LIMP HOME MODE...256
Limp Home Procedure 1...259
Limp Home Procedure 2...259
Limp Home Procedure 3...259
Limp Home Procedure 4...259
Limp Home Procedure 5...259
Limp Home Procedure 6...259
Limp Home Procedure 7...259
SECTION D15 - MACHINE MONITOR - INDEX...260
MACHINE MONITOR...262
CHARACTER DISPLAY...262
Mode Select Switches 1 & 2...263
Service Meter...263
Odometer...263
Operation Information...263
Reverse Travel Odometer...264
Filter And Oil Change Display...264
Display Items...265
Resetting The Filter/Oil Replacement Meter...265
Inputting Telephone Numbers...266
Selecting A Language...266
ACTION CODE DISPLAYS...267
E03 Codes...267
E02 Codes...268
E01 Codes...268
REAL TIME MONITOR...269
USING REAL TIME MONITOR...269
Viewing Two Streams of Data At Once...270
Real Time Monitoring Codes...271
MACHINE MONITOR FLOW CHART...275
SECTION D20 - FAILURE CODES - INDEX...280
FAILURE CODES...282
ACTION CODE DISPLAYS...282
CHECKING FAILURE CODES...283
LIMP HOME MODE...284
FAILURE CODE TABLE...285
SECTION D21 - ...302
FAILURE CODE [1500L0] DUAL ENGAGEMENT OF CLUTCHES...302
FAILURE CODE [15B0NX] TRANSMISSION OIL FILTER: RESTRICTION...303
FAILURE CODE [15F0KM] R to F SHIFTING ABUSE 1: OPERATOR ERROR...305
FAILURE CODE [15F0MB] R to F SHIFTING ABUSE 2: OPERATOR ERROR...305
FAILURE CODE [15F7KM] FORWARD CLUTCH DISC ABUSE: OPERATOR ERROR...306
FAILURE CODE [15G0MW] REVERSE CLUTCH: SLIPPING...307
FAILURE CODE [15G7KM] REVERSE CLUTCH DISC ABUSE: OPERATOR ERROR...309
FAILURE CODE [15H0MW] HIGH CLUTCH: SLIPPING...311
FAILURE CODE [15J0MW] LOW CLUTCH: SLIPPING...313
FAILURE CODE [15K0MW] 1st CLUTCH: SLIPPING...315
FAILURE CODE [15L0MW] 2nd CLUTCH: SLIPPING...317
FAILURE CODE [15M0MW] 3rd CLUTCH: SLIPPING...319
FAILURE CODE [15SBL1] R CLUTCH ECMV: FILL SIGNAL ON, COMMAND CURRENT OFF...321
FAILURE CODE[15SBMA] R CLUTCH ECMV: MALFUNCTION...323
FAILURE CODE [15SCL1] HIGH CLUTCH ECMV: FILL SIGNAL ON, COMMAND CURRENT OFF...325
FAILURE CODE [15SCMA] HIGH CLUTCH ECMV: MALFUNCTION...329
FAILURE CODE [15SDL1] LOW CLUTCH ECMV: FILL SIGNAL ON, COMMAND CURRENT OFF...331
FAILURE CODE [15SDMA] LOW CLUTCH ECMV: MALFUNCTION...335
FAILURE CODE [15SEL1] 1st CLUTCH ECMV: FILL SIGNAL ON, COMMAND CURRENT OFF...337
FAILURE CODE [15SEMA] 1st CLUTCH ECMV: MALFUNCTION...341
FAILURE CODE [15SFL1] 2nd CLUTCH ECMV: FILL SIGNAL ON, COMMAND CURRENT OFF...343
FAILURE CODE [15SFMA] 2nd CLUTCH ECMV: MALFUNCTION...347
FAILURE CODE [15SGL1] 3rd CLUTCH ECMV: FILL SIGNAL ON, COMMAND CURRENT OFF...349
FAILURE CODE [15SGMA] 3rd CLUTCH ECMV: MALFUNCTION...353
FAILURE CODE [15SJMA] LOCKUP CLUTCH ECMV: MALFUNCTION...355
FAILURE CODE [15SSL1] MID CLUTCH ECMV: FILL SIGNAL ON, COMMAND CURRENT OFF...356
FAILURE CODE [15SSMA] MID CLUTCH ECMV: MALFUNCTION...359
FAILURE CODE [15X0MW] MID CLUTCH: SLIPPING...361
FAILURE CODE [2G39MA] BRAKE VALVE: MALFUNCTION...363
FAILURE CODE [2G3AMA] BRAKE RELAY VALVE: MALFUNCTION...364
FAILURE CODE [2G41ZG] ACCUMULATOR: LOW OIL PRESSURE...365
FAILURE CODE [2J00MA] AUTO EMERGENCY VALVE: ERRATIC BEHAVIOR...366
FAILURE CODE [4A00ZG] STEERING SYSTEM: LOW OIL PRESSURE...367
FAILURE CODE [4A5WZH] STEERING ACCUMULATOR 1: LOW OIL PRESSURE...368
FAILURE CODE [4A5XZH] STEERING ACCUMULATOR 2: LOW OIL PRESSURE...369
FAILURE CODE [6014NX] HYDRAULIC FILTER: RESTRICTION...370
FAILURE CODE [989A00] ENGINE OVER RUN PREVENTION COMMAND: ACTIVATED...371
FAILURE CODE [AB00MA] ALTERNATOR: MALFUNCTION...372
FAILURE CODE [B@BAZG] ENGINE OIL: LOW ENGINE OIL PRESSURE...373
FAILURE CODE [B@BCNS] ENGINE: OVERHEAT...374
FAILURE CODE [B@BFZK] FUEL SYSTEM: FUEL LEVEL LOW...375
FAILURE CODE [B@C6NS] BRAKE COOLING OIL (FRONT): OVERHEATING...376
FAILURE CODE [B@C7NS] BRAKE COOLING OIL (RIGHT REAR): OVERHEATING...377
FAILURE CODE [B@C8NS] BRAKE COOLING OIL (LEFT REAR): OVERHEATING...378
FAILURE CODE [B@CENS] TORQUE CONVERTER OIL: OVERHEATING...379
FAILURE CODE [B@M6NX] BRAKE COOLING OIL FILTER (FRONT): RESTRICTION...380
FAILURE CODE [B@M7NX] BRAKE COOLING OIL FILTER (#2 REAR): RESTRICTION...381
FAILURE CODE [B@M8NX] BRAKE COOLING OIL FILTER (#1 REAR): RESTRICTION...382
FAILURE CODE [DAF9KM] MACHINE MONITOR: POOR CONNECTION...383
FAILURE CODE [DAFRKR] MACHINE MONITOR: COMMUNICATION ERROR...385
FAILURE CODE [DAQ0KK] TRANSMISSION CONTROLLER POWER: SOURCE VOLTAGE LOW...389
FAILURE CODE [DAQ2KK] TRANSMISSION CONTROLLER / ECMV POWER: SOURCE VOLTAGE LOW...390
FAILURE CODE [DAQ9KQ] TRANSMISSION CONTROLLER: MODEL SELECTION ERROR...391
FAILURE CODE [DAQRKR] TRANSMISSION CONTROLLER: COMMUNICATION ERROR...392
FAILURE CODE [DAQRMA] TRANSMISSION CONTROLLER: OPTION SETTING ERROR...393
FAILURE CODE [DASOMA] ENGINE MALFUNCTION: RED INDICATOR LIGHT...394
FAILURE CODE [DASOMC] ENGINE MALFUNCTION: AMBER INDICATOR LIGHT...395
FAILURE CODE [DASRKR] ENGINE: COMMUNICATION ERROR...396
FAILURE CODE [DB10KT] RETARDER CONTROLLER NONVOLATILE MEMORY: CONTROLLER ERROR...397
FAILURE CODE [DB12KK] RETARDER CONTROLLER SOLENOID POWER SOURCE: MALFUNCTION...398
FAILURE CODE [DB13KK] RETARDER CONTROLLER BATTERY DIRECT POWER SOURCE: SOURCE VOLTAGE LOW...399
FAILURE CODE [DB19KQ] RETARDER CONTROLLER: MODEL SELECTION ERROR...400
FAILURE CODE [DB1RKR] RETARDER CONTROLLER: COMMUNICATION ERROR...401
FAILURE CODE [DB1RMA] RETARDER CONTROLLER: OPTION SETTING ERROR...403
FAILURE CODE [dBBRKR] VHMS: COMMUNICATION ERROR...404
FAILURE CODE [DDB4MA] BRAKE SENSOR: OPEN OR SHORT CIRCUIT...405
FAILURE CODE [DDD7KX] ARSC SWITCH: INPUT SIGNAL OUT OF RANGE...407
FAILURE CODE [DDD8KA] ARSC SWITCH: OPEN CIRCUIT...409
FAILURE CODE [DDD8KB] ARSC SWITCH: SHORT CIRCUIT...410
FAILURE CODE [DDDAKA] ASR CUT SWITCH: OPEN CIRCUIT...411
FAILURE CODE [DDDAKB] ASR CUT SWITCH: SHORT CIRCUIT...412
FAILURE CODE [DDP6MA] BRAKE SWITCH: OPEN OR SHORT CIRCUIT...413
FAILURE CODE [DDTHKA] HIGH CLUTCH FILL SWITCH: OPEN CIRCUIT...415
FAILURE CODE [DDTJKA] LOW CLUTCH FILL SWITCH: OPEN CIRCUIT...417
FAILURE CODE [DDTKKA] 1ST CLUTCH FILL SWITCH: OPEN CIRCUIT...419
FAILURE CODE [DDTLKA] 2ND CLUTCH FILL SWITCH: OPEN CIRCUIT...421
FAILURE CODE [DDTMKA] 3RD CLUTCH FILL SWITCH: OPEN CIRCUIT...423
FAILURE CODE [DDTNKA] REVERSE CLUTCH FILL SWITCH: OPEN CIRCUIT...425
FAILURE CODE [DDTRKA] MID CLUTCH FILL SWITCH: OPEN CIRCUIT...427
FAILURE CODE [DF10KA] SHIFT LEVER: OPEN CIRCUIT...429
FAILURE CODE [DF10KB] SHIFT LEVER: SHORT CIRCUIT...433
FAILURE CODE [DGF1KX] TRANSMISSION OIL TEMPERATURE SENSOR: INPUT SIGNAL OUT OF RANGE...436
FAILURE CODE [DGR2KB] RETARDER OIL TEMPERATURE SENSOR (RIGHT REAR): SHORT TO GROUND...437
FAILURE CODE [DGR2KZ] RETARDER OIL TEMPERATURE SENSOR (RIGHT REAR): OPEN OR SHORT CIRCUIT...438
FAILURE CODE [DGR3KB] RETARDER OIL TEMPERATURE SENSOR (LEFT REAR): SHORT TO GROUND...439
FAILURE CODE [DGR3KZ] RETARDER OIL TEMPERATURE SENSOR (LEFT REAR): OPEN OR SHORT CIRCUIT...440
FAILURE CODE [DGR4KB] RETARDER OIL TEMPERATURE SENSOR (FRONT WHEEL): OPEN OR SHORT CIRCUIT...441
FAILURE CODE [DGR4KZ] RETARDER OIL TEMPERATURE SENSOR (FRONT WHEEL): SHORT TO GROUND...442
FAILURE CODE [DGT1KX] TORQUE CONVERTER OIL TEMPERATURE SENSOR: INPUT SIGNAL OUT OF RANGE...443
FAILURE CODE [dHP4KX] RIGHT FRONT SUSPENSION PRESSURE SENSOR: OUT OF RANGE...444
FAILURE CODE [DhP4KX] RIGHT FRONT SUSPENSION PRESSURE SENSOR: OUT OF RANGE...445
FAILURE CODE [dHP5KX] LEFT FRONT SUSPENSION PRESSURE SENSOR: OUT OF RANGE...446
FAILURE CODE [DhP5KX] LEFT FRONT SUSPENSION PRESSURE SENSOR: OUT OF RANGE...447
FAILURE CODE [DHP6KX] RIGHT REAR SUSPENSION PRESSURE SENSOR: OUT OF RANGE...448
FAILURE CODE [DHP7KX] LEFT REAR SUSPENSION PRESSURE SENSOR: OUT OF RANGE...449
FAILURE CODE [DHT5KX] TORQUE CONVERTER INLET OIL PRESSURE SENSOR: OUT OF RANGE...450
FAILURE CODE [DHT5L6] TORQUE CONVERTER INLET OIL PRESSURE SENSOR: MALFUNCTION...451
FAILURE CODE [DHT7KX] TORQUE CONVERTER OUTLET OIL PRESSURE SENSOR: OUT OF RANGE...452
FAILURE CODE [DHT7L6] TORQUE CONVERTER OUTLET OIL PRESSURE SENSOR: MALFUNCTION...453
FAILURE CODE [DJF1KA] FUEL LEVEL SENSOR: OPEN CIRCUIT...454
FAILURE CODE [DK11KX] ACCELERATOR PEDAL SENSOR: OUT OF RANGE...455
FAILURE CODE [DK30KX] STEERING ANGLE POTENTIOMETER: OPEN CIRCUIT...456
FAILURE CODE [DK51KX] RETARDER LEVER POTENTIOMETER: OUT OF RANGE...457
FAILURE CODE [DKH1KX] INCLINATION SENSOR: OUT OF RANGE...459
FAILURE CODE [DL10LC] WHEEL SPEED SENSOR CIRCUIT: MALFUNCTION...460
FAILURE CODE [DLE2KA] ENGINE SPEED SENSOR: OPEN CIRCUIT...461
FAILURE CODE [DLE2LC] ENGINE SPEED SENSOR: MALFUNCTION...462
FAILURE CODE [DLF1KA] TRANSMISSION INPUT SHAFT SPEED SENSOR: OPEN CIRCUIT...463
FAILURE CODE [DLF1LC] TRANSMISSION INPUT SHAFT SPEED SENSOR: MALFUNCTION...464
FAILURE CODE [DLF2KA] TRANSMISSION INTERMEDIATE SHAFT SPEED SENSOR: OPEN CIRCUIT...465
FAILURE CODE [DLF2LC] TRANSMISSION INTERMEDIATE SHAFT SPEED SENSOR: MALFUNCTION...466
FAILURE CODE [DLF8LC] RIGHT REAR WHEEL SPEED SENSOR: MALFUNCTION...467
FAILURE CODE [DLF9LC] LEFT REAR WHEEL SPEED SENSOR: MALFUNCTION...468
FAILURE CODE [dLt3KA] TRANSMISSION OUTPUT SHAFT SPEED SENSOR: OPEN CIRCUIT...469
FAILURE CODE [dLT3KA] TRANSMISSION OUTPUT SHAFT SPEED SENSOR: OPEN CIRCUIT...470
FAILURE CODE [DLT3KA] TRANSMISSION OUTPUT SHAFT SPEED SENSOR: OPEN CIRCUIT...471
FAILURE CODE [dLt3LC] TRANSMISSION OUTPUT SHAFT SPEED SENSOR: MALFUNCTION...472
FAILURE CODE [dLT3LC] TRANSMISSION OUTPUT SHAFT SPEED SENSOR: MALFUNCTION...473
FAILURE CODE [DLT3LC] TRANSMISSION OUTPUT SHAFT SPEED SENSOR: DISAGREEMENT OF REVOLUTION SPEED SIGNAL...474
FAILURE CODE [DNCCMA] BRAKE PEDAL PROXIMITY SWITCH: SHORT CIRCUIT...475
FAILURE CODE [DV00KB] WARNING ALARM BUZZER OUTPUT: SHORT CIRCUIT...476
FAILURE CODE [DW78KZ] REAR BRAKE COOLING VALVE: OPEN OR SHORT CIRCUIT...477
FAILURE CODE [DW79KZ] FRONT BRAKE COOLING VALVE: OPEN OR SHORT CIRCUIT...478
FAILURE CODE [DW7FMA] MANUAL EMERGENCY BRAKE VALVE: FAILURE...479
FAILURE CODE [DW7GMA] BRAKE VALVE (REAR) OR BRAKE LOCK VALVE: SHORT CIRCUIT...480
FAILURE CODE [DWA1K4] PPC CUT VALVE: MALFUNCTION (VALVE STUCK ON)...481
FAILURE CODE [DWA1KA] PPC CUT VALVE: OPEN CIRCUIT...482
FAILURE CODE [DWA1KB] PPC CUT VALVE: SHORT CIRCUIT...483
FAILURE CODE [DWA1KY] PPC CUT VALVE: SHORT TO POWER...484
FAILURE CODE [DWA1MA] PPC CUT VALVE: MALFUNCTION (VALVE DOES NOT OPERATE)...485
FAILURE CODE [DX12K4] FRONT BRAKE PPC SOLENOID VALVE: MALFUNCTION (VALVE STUCK ON)...487
FAILURE CODE [DX12KA] FRONT BRAKE PPC SOLENOID VALVE: OPEN CIRCUIT...489
FAILURE CODE [DX12KB] FRONT BRAKE PPC SOLENOID VALVE: SHORT CIRCUIT...490
FAILURE CODE [DX12KY] FRONT BRAKE PPC SOLENOID VALVE: SHORT TO POWER...491
FAILURE CODE [DX12MA] FRONT BRAKE PPC SOLENOID VALVE: MALFUNCTION (VALVE DOES NOT OPERATE)...492
FAILURE CODE [DX27K4] RIGHT REAR PPC SOLENOID VALVE: MALFUNCTION (VALVE STUCK ON)...493
FAILURE CODE [DX27KA] RIGHT REAR PPC SOLENOID VALVE: OPEN CIRCUIT...495
FAILURE CODE [DX27KB] RIGHT REAR PPC SOLENOID VALVE: SHORT CIRCUIT...496
FAILURE CODE [DX27KY] RIGHT REAR PPC SOLENOID VALVE: SHORT TO POWER...497
FAILURE CODE [DX27MA] RIGHT REAR PPC SOLENOID VALVE: MALFUNCTION...498
FAILURE CODE [DX28K4] LEFT REAR PPC SOLENOID VALVE: ERATIC OPERATION...499
FAILURE CODE [DX28KA] LEFT REAR PPC SOLENOID VALVE: OPEN CIRCUIT...501
FAILURE CODE [DX28KB] LEFT REAR PPC SOLENOID VALVE: SHORT CIRCUIT...502
FAILURE CODE [DX28KY] LEFT REAR PPC SOLENOID VALVE: SHORT TO POWER...503
FAILURE CODE [DX28MA] LEFT REAR PPC SOLENOID VALVE: MALFUNCTION (VALVE DOES NOT OPERATE)...504
FAILURE CODE [DXH1KA] LOCKUP CLUTCH ECMV OUTPUT CIRCUIT: OPEN CIRCUIT...505
FAILURE CODE [DXH1KB] LOCKUP CLUTCH ECMV OUTPUT CIRCUIT: SHORT CIRCUIT...506
FAILURE CODE [DXH1KY] LOCKUP CLUTCH ECMV OUTPUT CIRCUIT: SHORT TO POWER...507
FAILURE CODE [DXH2KA] HIGH CLUTCH ECMV OUTPUT CIRCUIT: OPEN CIRCUIT...509
FAILURE CODE [DXH2KB] HIGH CLUTCH ECMV OUTPUT CIRCUIT: SHORT CIRCUIT...511
FAILURE CODE [DXH2KY] HIGH CLUTCH ECMV OUTPUT CIRCUIT: SHORT TO POWER...513
FAILURE CODE [DXH3KA] LOW CLUTCH ECMV OUTPUT CIRCUIT: OPEN CIRCUIT...517
FAILURE CODE [DXH3KB] LOW CLUTCH ECMV OUTPUT CIRCUIT: SHORT CIRCUIT...519
FAILURE CODE [DXH3KY] LOW CLUTCH ECMV OUTPUT CIRCUIT: SHORT TO POWER...521
FAILURE CODE [DXH4KA] 1ST CLUTCH ECMV OUTPUT CIRCUIT: OPEN CIRCUIT...525
FAILURE CODE [DXH4KB] 1ST CLUTCH ECMV OUTPUT CIRCUIT: SHORT CIRCUIT...527
FAILURE CODE [DXH4KY] 1ST CLUTCH ECMV OUTPUT CIRCUIT: SHORT TO POWER...529
FAILURE CODE [DXH5KA] 2ND CLUTCH ECMV OUTPUT CIRCUIT: OPEN CIRCUIT...533
FAILURE CODE [DXH5KB] 2ND CLUTCH ECMV OUTPUT CIRCUIT: SHORT CIRCUIT...535
FAILURE CODE [DXH5KY] 2ND CLUTCH ECMV OUTPUT CIRCUIT: SHORT TO POWER...537
FAILURE CODE [DXH6KA] 3RD CLUTCH ECMV OUTPUT CIRCUIT: OPEN CIRCUIT...541
FAILURE CODE [DXH6KB] 3RD CLUTCH ECMV OUTPUT CIRCUIT: SHORT CIRCUIT...543
FAILURE CODE [DXH6KY] 3RD CLUTCH ECMV OUTPUT CIRCUIT: SHORT TO POWER...545
FAILURE CODE [DXH7KA] R CLUTCH ECMV OUTPUT CIRCUIT: OPEN CIRCUIT...549
FAILURE CODE [DXH7KB] R CLUTCH ECMV OUTPUT CIRCUIT: SHORT CIRCUIT...551
FAILURE CODE [DXH7KY] R CLUTCH ECMV OUTPUT CIRCUIT: SHORT TO POWER...553
FAILURE CODE [DXJ7KA] MID CLUTCH ECMV OUTPUT CIRCUIT: OPEN CIRCUIT...557
FAILURE CODE [DXJ7KB] MID CLUTCH ECMV OUTPUT CIRCUIT: SHORT CIRCUIT...559
FAILURE CODE [DXJ7KY] MID CLUTCH ECMV OUTPUT CIRCUIT: SHORT TO POWER...561
SECTION D30 - VHMS INITIALIZATION - ...564
INITIALIZATION OF VHMS CONTROLLER...566
Executing Quick PM...577
Downloading Existing VHMS Setting Data...582
Confirmation of Downloaded Data...583
Disconnecting the PC...583
Reporting to Komatsu...583
REPLACING THE VHMS CONTROLLER...585
Prior to Removing VHMS Controller...585
Confirming and Saving VHMS Controller Settings (Versions older than 3.5.2.1)...585
Loading Saved VHMS Settings To New VHMS Controller (Versions older than 3.5.2.1)...589
Confirming and Saving VHMS Controller Settings (Version 3.5.2.1 or newer)...591
Loading Saved VHMS Settings To New VHMS Controller (Version 3.5.2.1 or newer)...592
FINAL VHMS PROCEDURES-POST INSTALLATION...593
Correct the Load Weight Calculation...595
SECTION D31 - VEHICLE HEALTH MONITORING SYSTEM (VHMS) - INDEX...604
VEHICLE HEALTH MONITORING SYSTEM (VHMS)...606
VHMS DOWNLOADING...607
PAYLOAD METER...608
NORMAL OPERATION DISPLAY...609
EXTERNAL DISPLAY LAMPS...610
PREDICTED LOAD DISPLAY...610
CALIBRATING PLM...611
DATA STORED IN PAYLOAD METER...612
PLM DOWNLOADING...613
Downloading From Inside Of The Cab...613
Downloading From Ground Level Box...613
SETTING THE MACHINE ID AND OPEN ID...614
PAYLOAD - CYCLE DATA ITEM...615
ADDITIONAL FUNCTIONS...615
Other Settings...615
SECTION F - TRANSMISSION / TORQUE CONVERTER - INDEX...616
SECTION F2 - TORQUE CONVERTER AND TRANSMISSION - INDEX...618
TORQUE CONVERTER AND TRANSMISSION...620
TORQUE CONVERTER...621
MAIN RELIEF VALVE...623
Function...623
Operation...623
TORQUE CONVERTER RELIEF VALVE...623
Function...623
Operation...623
TORQUE CONVERTER REGULATOR VALVE...625
Operation...625
LOCK-UP CLUTCH...626
Lock-up Clutch Accumulator...626
HYDRAULIC PUMP...627
TORQUE CONVERTER STALL CHECK...628
TRANSMISSION...629
LUBRICATION RELIEF VALVE...631
Function...631
TRANSMISSION CONTROL VALVE...632
ELECTRONIC CONTROL MODULATION VALVE (ECMV)...634
Pressure Control Valve...635
Flow Sensor Valve...635
ECMV and Proportional Solenoid...635
ECMV and Fill Switch...635
ECMV Operation...636
ECMV REPAIR...639
Preparation...639
Filter Replacement Procedure...639
ECMV Identification...640
ECMV Removal...640
Disassembly...640
Assembly...642
Installation...642
TRANSMISSION FILTERS...644
Service...644
Installation...644
TRANSMISSION SPEED SENSORS...645
Adjustment Procedure...645
TRANSMISSION OIL LEVEL CHECK...646
TRANSMISSION OIL PRESSURE CHECK...647
TRANSMISSION AND TORQUE CONVERTER TROUBLESHOOTING...649
Preliminary Checks...649
TRANSMISSION REMOVAL...653
TRANSMISSION INSTALLATION...654
SECTION F3 - TRANSMISSION OIL COOLER & STRAINERS - INDEX...658
TRANSMISSION OIL COOLER & STRAINERS...660
TRANSMISSION OIL COOLER...660
Removal and Installation...660
Repair...660
TRANSMISSION OIL STRAINER...660
Removal...661
Inspection...661
Installation...661
SECTION F5 - DRIVE SHAFTS - INDEX...662
DRIVE SHAFTS...664
FRONT DRIVE SHAFT...664
Removal...664
Disassembly...664
Assembly...664
Installation...665
FRONT DRIVE SHAFT ALIGNMENT...666
REAR DRIVE SHAFT...669
Removal...669
Disassembly...670
Assembly...670
Installation...670
SECTION F8 - TORQUE CONVERTER REBUILD - INDEX...672
TORQUE CONVERTER REBUILD...674
REMOVAL...674
INSTALLATION...676
DISASSEMBLY...678
PTO COVER DISASSEMBLY...686
CLEANING & INSPECTION...687
TABLE I. COMPONENT WEAR LIMITS...688
TABLE II. Gear Backlash...688
ASSEMBLY...689
ONE-WAY CLUTCH ASSEMBLY...690
STATOR BEARING PRE-LOAD ADJUSTMENT...692
PTO DRIVE ASSEMBLY...696
SPECIAL TOOLS...701
SECTION F9 - TRANSMISSION REBUILD - INDEX...704
TRANSMISSION REBUILD...706
TRANSMISSION DISASSEMBLY...706
Number One Clutch Housing Disassembly...710
Bearing Cage & Cover Disassembly...713
Number Four Carrier Disassembly...714
Output Shaft Cover Disassembly...715
Rear Case Bearing Removal...715
Output Shaft Removal...716
Output Shaft Disassembly...716
Number Five/Six Carrier Disassembly...716
CLEANING AND INSPECTION...718
INSPECTION TABLE INDEX...718
TRANSMISSION ASSEMBLY...724
GENERAL INSTRUCTIONS...724
Number Five/Six Carrier Assembly...724
Output Shaft Assembly...725
Number Seven Clutch Assembly...726
Rear Case Assembly...727
Rear Case & Carrier Assembly...727
Number Six Clutch Assembly...729
Number Four Carrier Assembly...730
Number Four Carrier Bearing Cage Assembly...731
Number Five Clutch Assembly...731
Number Four Clutch Assembly...732
Number Three Clutch Assembly...732
Clutch Test...733
Number Two Clutch Ring Gear Installation...733
Number Three Carrier & Number Two Clutch Assembly...734
Number One Carrier Assembly...734
Number One Clutch Assembly...737
Checks Prior to Final Assembly...739
Final Assembly...739
Input Shaft Installation...740
External Components...742
SECTION G - DRIVE AXLE, SPINDLES AND WHEELS - INDEX...744
SECTION G2 - TIRES AND RIMS - INDEX...746
TIRES AND RIMS...748
GENERAL INFORMATION...748
FRONT TIRES AND RIMS...749
Removal...749
Installation...750
REAR TIRE AND RIM...750
Removal...750
Installation...752
TIRE MATCHING...753
RIM...753
Tire Removal From Rim...753
Tire Installation On Rim...754
FRONT WHEEL STUD INSTALLATION...755
REAR WHEEL STUD INSTALLATION...756
SECTION G3 - FRONT WHEEL HUB AND SPINDLE - INDEX...758
FRONT WHEEL HUB AND SPINDLE...760
OIL SAMPLE ANALYSIS...760
Oil Sampling Guidelines...760
Guidelines For Obtaining A Sample...760
FRONT WHEEL HUB...761
Removal...761
Disassembly...761
Inspection...761
Assembly...762
Installation...764
Front Wheel Hub Bearing Adjustment...764
FRONT SPINDLE...765
A-ARM...765
Removal...765
Inspection...765
Installation...765
CENTER TIE ROD PIVOT...766
Removal...766
Inspection...766
Installation...766
TOE IN ADJUSTMENT...767
Adjustment Procedure...767
SECTION G4 - REAR AXLE ATTACHMENTS - INDEX...772
REAR AXLE ATTACHMENTS...774
CENTER LINK AND LOWER LINKS...774
Removal...774
Inspection...775
Spherical Bearing Replacement...775
Installation...775
PANHARD ROD (DIAGONAL LINK)...776
Removal...776
Inspection...777
Installation...777
SECTION G5 - REAR AXLE AND FINAL DRIVE ASSEMBLY - INDEX...778
REAR AXLE & FINAL DRIVE ASSEMBLY...780
DIFFERENTIAL OPERATION...780
Straight-away-travel...780
Turning...780
REAR AXLE ASSEMBLY...781
Removal...781
Installation...781
DIFFERENTIAL OIL LEVEL CHECK...782
DIFFERENTIAL ASSEMBLY...783
Removal...783
Installation...784
Disassembly...784
Pinion Carrier Assembly...787
Differential Gear Unit...787
Differential Gear Unit...788
Cleaning and Inspection...791
Assembly...791
Differential Bearing...791
Assembly Of Differential Gear Assembly...791
Installation Of Differential Assembly...793
Input Pinion and Carrier Assembly...794
Adjusting Tooth Contact, Backlash...798
SECTION G6 - FINAL DRIVE PLANETARIES AND WHEEL HUBS - INDEX...802
FINAL DRIVE PLANETARIES AND WHEEL HUBS...804
FINAL DRIVE...804
Oil Level Check...805
FINAL DRIVE CARRIER ASSEMBLY...805
Removal...805
Installation...806
Disassembly...806
Assembly...807
FINAL DRIVE ASSEMBLY...808
Disassembly...808
Assembly...810
SECTION H - SUSPENSIONS - INDEX...812
SECTION H2 - FRONT SUSPENSION - INDEX...814
FRONT SUSPENSION...816
Removal...818
Installation...819
Disassembly...820
Cleaning and Inspection...822
Assembly...822
Pressure Tests...823
DAMPING VALVE REPAIR...824
Disassembly...824
Assembly...825
SECTION H3 - REAR SUSPENSION - INDEX...826
REAR SUSPENSION...828
Operation...829
Removal...830
Installation...830
Disassembly...830
Cleaning and Inspection...834
Assembly...834
LEAK TESTING...835
SPHERICAL BEARINGS...835
Removal...835
Inspection...835
Installation...835
SECTION H4 - SUSPENSION OILING AND CHARGING - INDEX...836
SUSPENSION OILING AND CHARGING...838
GENERAL INFORMATION...838
Equipment List...838
FRONT SUSPENSION...840
Front Suspension Oiling...840
Front Suspension Nitrogen Charging...843
REAR SUSPENSION...845
GENERAL INFORMATION...845
Rear Suspension Oiling...845
Rear Suspension Nitrogen Charging...849
FRONT AND REAR CYLINDER LENGTH ADJUSTMENT...849
SECTION J - BRAKE SYSTEM - INDEX...852
SECTION J2 - BRAKE SYSTEM OPERATION - INDEX...854
BRAKE SYSTEM OPERATION...856
DESCRIPTION...856
SERVICE BRAKE OPERATION...857
SECONDARY BRAKING AND AUTOMATIC APPLY...857
BRAKE SYSTEM COMPONENTS...859
BRAKE MANIFOLD CARTRIDGE VALVES...861
SERVICE BRAKE CIRCUIT...865
RETARDING CIRCUIT...867
PARKING BRAKE CIRCUIT...869
AUTO APPLY...871
AUXILIARY BRAKE CIRCUIT...873
BRAKE LOCK CIRCUIT...875
AUTOMATIC SPIN REGULATOR...877
BRAKE COOLING CIRCUIT...879
BRAKE COOLING VALVE...880
COLD OIL DIVERTER VALVES...883
SECTION J3 - BRAKE CIRCUIT COMPONENT SERVICE - INDEX...884
BRAKE CIRCUIT COMPONENT SERVICE...886
BRAKE VALVE...887
Rebuild Criteria...887
Removal...887
Installation...888
Disassembly...889
Cleaning and Inspection...890
Assembly...892
Actuator Base Threaded Inserts...892
Boot and Cap...892
Valve Body Seal Installation...892
Regulator Sleeve O-Ring Installation...892
Actuator Plunger O-ring Installation...893
Assembly of Valve...894
BENCH TEST AND ADJUSTMENT...895
Test Bench Only...895
Test Set Up Procedure...895
Brake Valve Output Pressure Adjustment...897
Final Test and Adjustment...898
Proximity Switch Installation and Adjustment...900
Installation Of Brake Pedal Actuator Assembly to Brake Valve...900
BRAKE ACCUMULATORS...901
Removal...902
Installation...902
Disassembly...902
Cleaning and Inspection...904
Assembly...904
Leak Testing...906
ACCUMULATOR CHARGING...907
Temperature During Precharge...909
ACCUMULATOR STORAGE...910
Installation...910
BRAKE COOLING VALVE (BCV)...911
RETARDER CONTROL LEVER...912
Removal...912
Installation...912
Disassembly and Adjustment...912
Potentiometer Check...914
Assembly...914
Retard Lever Calibration...915
SECTION J4 - BRAKE CIRCUIT CHECKOUT - INDEX...916
BRAKE CIRCUIT CHECK-OUT...918
REQUIRED EQUIPMENT...918
PREPARATION...918
BRAKE CIRCUIT TESTING...919
Initial System Setup...919
Parking Brake...920
Brake Lock...921
Low-Brake Pressure and Auto-Apply...921
Validation...922
Retarding...922
BRAKE SYSTEM DATA SHEET...923
BRAKE CIRCUIT TROUBLESHOOTING...926
SECTION J5 - FRONT WET DISC BRAKES - INDEX...930
FRONT WET DISC BRAKES...932
BRAKE MAINTENANCE...933
Checking Disc Wear...933
FRONT BRAKE ASSEMBLY...935
Removal...935
Installation...935
Disassembly...935
Cleaning and Inspection...936
Assembly...937
Floating Seal Installation...940
BRAKE BLEEDING...943
SECTION J6 - REAR WET DISC BRAKES - INDEX...944
REAR WET DISC BRAKES...946
DESCRIPTION...946
OPERATION...946
MAINTENANCE...947
Checking Brake Disc Wear...947
REMOVAL...948
INSTALLATION...949
BRAKE REBUILD...951
Disassembly...951
Cleaning and Inspection...952
Assembly...952
Floating Seal Installation...954
WET DISC BRAKE BLEEDING...957
SECTION J7 - PARKING BRAKE - INDEX...958
PARKING BRAKE...960
Description...960
Parking Brake Service Criteria...960
Removal...961
Installation...961
PARKING BRAKE SPRING CYLINDER REPLACEMENT...963
Removal...963
Installation...963
AUTOMATIC SLACK ADJUSTER...963
Adjustment Procedure...963
PARKING BRAKE CHECK-OUT...964
SECTION L - HYDRAULIC SYSTEM - ...966
SECTION L2 - ...968
HYDRAULIC SYSTEM OVERVIEW...970
SYSTEM COMPONENTS...970
HYDRAULIC TANK...970
BLEED-DOWN MANIFOLD...972
HOIST VALVE...972
HOIST PUMP...972
BRAKE COOLING PUMP...973
BRAKE CONTROL VALVE (BCV)...973
SECTION L3 - HYDRAULIC SYSTEM COMPONENT REPAIR - INDEX...974
HYDRAULIC COMPONENT REPAIR...976
HYDRAULIC TANK...976
FILLING INSTRUCTIONS...976
MAINTENANCE...976
Removal...977
Installation...979
Gap Measurement - Hydraulic Tank Mounting...979
STRAINERS AND DIFFUSERS...980
Removal...980
Cleaning and Inspection...980
Installation...981
HYDRAULIC TANK BREATHER...981
Service...982
HYDRAULIC SYSTEM FLUSHING...982
HYDRAULIC PUMPS...983
Removal...983
Installation...984
PUMP REBUILD...985
Disassembly...985
Inspection Of Parts...988
Assembly...988
Bearing Replacement...991
Seal Replacement...991
TROUBLESHOOTING GUIDE...994
SECTION L4 - STEERING CIRCUIT - INDEX...996
STEERING CIRCUIT...998
OPERATION...998
COMPONENT DESCRIPTION...998
Steering Control Valve...998
Bleed-down Manifold...998
Bleed-down Solenoid...999
Accumulators...1000
Flow Amplifier...1000
High Pressure Filter...1000
Warning Devices...1000
FLOW AMPLIFIER OPERATION...1002
STEERING/BRAKE PUMP...1010
COMPONENTS...1010
OPERATION...1012
SECTION L5 - STEERING CONTROL UNIT - INDEX...1014
STEERING CONTROL UNIT...1016
Removal...1016
Installation...1016
REBUILD PROCEDURE...1017
Disassembly...1018
Cleaning and Inspection...1019
Assembly...1021
SECTION L6 - STEERING CIRCUIT COMPONENT REPAIR - INDEX...1026
STEERING CIRCUIT COMPONENT REPAIR...1028
BLEED-DOWN MANIFOLD...1028
Removal...1028
Adjusting Relief Valve...1028
Testing and Adjustment...1029
FLOW AMPLIFIER...1030
Removal...1030
Installation...1030
Disassembly...1030
Assembly...1033
ACCUMULATORS...1034
Removal...1034
Installation...1035
Disassembly...1036
Cleaning and Inspection...1036
Assembly...1036
Leak Testing...1037
STEERING ACCUMULATOR CHARGING...1039
Temperature During Precharge...1042
ACCUMULATOR STORAGE...1042
Installation...1043
STEERING CYLINDER...1044
Removal...1044
Installation...1044
STEERING CYLINDER REBUILD...1045
Disassembly...1045
Cleaning and Inspection...1045
Assembly...1046
Testing...1046
STEERING/BRAKE PUMP...1046
Removal...1046
Installation...1047
PUMP REBUILD...1048
Disassembly...1048
Control Group...1049
Valve Plate Group...1050
Rotating Group...1050
Drive Shaft Group...1051
Swashblock Group...1051
Inspection...1051
Control Group...1051
Valve Plate Group...1052
Rotating Group...1052
Swashblock Group...1053
Drive Shaft Group...1053
Assembly...1053
Swashblock Group...1053
Drive Shaft Group...1054
Rotating Group...1054
Valve Plate Group...1055
Control Group...1056
STEERING CIRCUIT FILTER...1057
Removal...1057
Installation...1057
TROUBLESHOOTING CHART...1058
SECTION L7 - HOIST CIRCUIT - INDEX...1060
HOIST CIRCUIT...1062
HOIST CIRCUIT OPERATION...1062
COMPONENT DESCRIPTION...1063
Hydraulic Tank...1063
Hoist Pump...1063
Hoist Valve...1063
Hoist Pilot Valve...1064
Power Up Solenoid...1065
Pilot Operated Check Valve...1065
Power Down Spool Limit Solenoid...1065
HOIST CIRCUIT HYDRAULIC FLOW...1066
POWER UP...1068
HOLD...1070
POWER DOWN...1072
FLOAT...1074
SECTION L8 - HOIST CIRCUIT COMPONENT REPAIR - INDEX...1076
HOIST CIRCUIT COMPONENT REPAIR...1078
HOIST VALVE...1078
Removal...1078
Installation...1078
O-Ring Replacement...1079
INLET SECTION...1080
Disassembly...1080
Cleaning and Inspection...1081
Assembly...1081
SPOOL SECTION...1081
Disassembly...1081
Cleaning and Inspection...1082
Assembly...1084
HOIST PILOT VALVE...1085
Removal...1085
Installation...1085
Disassembly...1086
Cleaning and Inspection...1087
Assembly...1087
HOIST CYLINDERS...1088
Removal...1088
Installation...1090
Disassembly...1090
Cleaning and Inspection...1092
Assembly - Quill And Cylinder...1093
Quill Installation...1093
Installation Of Check Balls And Plugs In Quill...1094
Assembly of Cylinder...1095
Pressure Testing...1096
SECTION L9 - HYDRAULIC SYSTEM FILTERS - INDEX...1098
HYDRAULIC SYSTEM FILTERS...1100
HIGH PRESSURE FILTER...1100
Removal...1100
Installation...1101
LOW PRESSURE FILTERS...1101
BRAKE COOLING & HOIST FILTERS...1101
TRANSMISSION FILTER...1101
Removal...1102
Installation...1102
SECTION L10 - HYDRAULIC CHECK-OUT PROCEDURE - INDEX...1104
HYDRAULIC CHECK-OUT PROCEDURE...1106
GENERAL INFORMATION...1106
STEERING CIRCUIT CHECK-OUT & ADJUSTMENT PROCEDURE...1106
Equipment Requirements...1107
Installation Of Gauges...1107
Initial Startup And Flushing...1107
Component Checkout And Adjustment...1108
CHECKING HOIST SYSTEM PRESSURES...1110
Equipment Requirements...1110
Steering Components Leakage Test...1112
HYDRAULIC SYSTEM CHECKOUT DATA SHEET...1113
SECTION M - OPTIONS AND SPECIAL TOOLS - INDEX...1114
SECTION M7 - HOT START SYSTEM - ...1116
HOT START SYSTEM...1118
SYSTEM OPERATION...1118
HEATER INFORMATION...1119
TROUBLESHOOTING GUIDELINES...1121
SECTION M8 - ...1122
SECTION N - OPERATOR CAB - INDEX...1126
SECTION N2 - OPERATOR CAB - INDEX...1128
OPERATOR CAB...1130
Removal...1131
Installation...1133
CAB DOORS...1133
Removal...1133
Installation...1134
Door Striker Adjustment...1134
Door Handle Plunger Adjustment...1135
DOOR PANEL...1136
Removal...1136
Installation...1136
DOOR WINDOW...1137
Removal...1137
Installation...1139
WINDOW REGULATOR...1141
Removal...1141
Installation...1141
DOOR HANDLE AND DOOR LATCH...1141
Removal...1141
Installation...1141
DOOR SEALS...1142
Removal...1142
Installation...1142
DOOR OPENING SEAL...1142
Removal...1142
Installation...1142
GLASS REPLACEMENT...1143
Replacement...1143
WINDSHIELD AND REAR GLASS...1144
Removal...1144
Installation...1145
SECTION N3 - CAB COMPONENTS -...1146
CAB COMPONENTS...1148
WINDSHIELD WIPERS...1148
WIPER MOTOR...1148
Removal...1148
Installation...1148
WIPER ARM...1148
Removal...1148
Installation...1149
WIPER LINKAGE...1149
Removal...1149
Installation...1149
WINDSHIELD WASHER...1150
Operation...1150
Service...1150
OPERATOR SEAT...1151
Adjustment...1151
Inspection...1152
Removal...1152
Installation...1152
SEAT BELT...1152
Removal...1152
Installation...1154
SECTION N4 - HEATING AND AIR CONDITIONING - INDEX...1156
HEATING AND AIR CONDITIONING...1158
HEATER/AIR CONDITIONER UNIT...1158
Fan Speed Control Knob...1158
Temperature Control Knob...1158
Air Flow Directional Knob...1158
Heater/Air Conditioner Vents...1159
COMPONENTS...1159
Fuse...1159
Relays...1159
Heater Core...1159
Fan Motor And Speed Control...1160
Actuators...1160
Cab Air Filter...1160
ENVIRONMENTAL IMPACT OF AIR CONDITIONING...1163
AIR CONDITIONING FOR OFF-HIGHWAY VEHICLES...1163
PRINCIPLES OF REFRIGERATION...1163
Air Conditioning...1163
Refrigeration - The Act Of Cooling...1164
The Refrigeration Cycle...1164
AIR CONDITIONER SYSTEM COMPONENTS...1165
Compressor (Refrigerant Pump)...1165
Service Valves...1165
Condenser...1165
Receiver-Drier...1165
Expansion Block Valve...1166
Accumulator...1166
Evaporator...1166
ELECTRICAL CIRCUIT...1167
Thermostat...1167
Compressor Clutch...1167
Trinary? Switch...1168
SYSTEM SERVICING...1169
SERVICE TOOLS AND EQUIPMENT...1170
Recovery/Recycle Station...1170
Leak Detector...1170
Service Valves...1171
Vacuum Pump...1171
Manifold Gauge Set...1172
Installing Manifold Gauge Set...1173
Purging Air From Service Hoses...1173
SYSTEM PERFORMANCE TEST...1174
SYSTEM OIL...1175
Handling and Reusing PAG Oil...1175
Oil Quantity...1175
Checking System Oil...1175
REFRIGERANT...1176
Recycled Refrigerant...1176
Reclaimed Refrigerant...1176
Refrigerant Quantity...1176
R-134a Refrigerant Containers...1177
SYSTEM LEAK TESTING...1177
Electronic Leak Detector...1178
Tracer Dyes...1178
Soap and Water...1178
RECOVERING AND RECYCLING THE REFRIGERANT...1178
Draining Oil from the Previous Recovery Cycle...1178
Performing the Recovery Cycle...1178
Performing the Recycling Procedure...1179
Evacuating and Charging the A/C System...1179
SYSTEM REPAIR...1179
System Flushing...1179
A/C DRIVE BELT CHECKOUT PROCEDURE...1180
Pulley Alignment...1180
Belt Tension Check...1180
COMPONENT REPLACEMENT...1182
Hoses and Fittings...1182
Lines...1182
Expansion Valve...1182
Receiver-Drier...1182
Thermostat...1182
Compressor...1183
Accumulator...1183
Clutch...1183
Servicing the Compressor Clutch...1184
Pulley Removal...1186
Clutch Coil Check...1187
Pulley Installation...1187
Clutch Assembly Installation...1187
EVACUATING THE SYSTEM...1189
CHARGING THE A/C SYSTEM...1191
TROUBLESHOOTING...1192
Preliminary Checks...1192
Diagnosis Of Gauge Readings And System Performance...1192
TROUBLESHOOTING BY MANIFOLD GAUGE SET READINGS...1193
PREVENTIVE MAINTENANCE SCHEDULE FOR A/C SYSTEM...1199
SECTION N5 - OPERATOR CAB AND CONTROLS - INDEX...1200
OPERATOR CAB AND CONTROLS...1202
STEERING WHEEL AND CONTROLS...1203
Horn Button...1203
ARSC Set Lever...1203
Telescoping/Tilt Wheel Lever...1203
Multi-Function Turn Signal Lever...1203
RETARDER CONTROL LEVER...1204
STEERING WHEEL...1205
Removal...1205
Installation...1205
SERVICE BRAKE PEDAL...1205
ACCELERATOR PEDAL...1205
INSTRUMENT PANEL...1205
HEATER / AIR CONDITIONER CONTROLS...1206
RETARDING CAPACITY CHART...1206
RADIO SPEAKERS...1206
AIR CLEANER VACUUM GAUGES...1206
WARNING ALARM BUZZER...1206
AM/FM RADIO / CD PLAYER...1206
CENTER CONSOLE...1207
Hoist Control Lever...1208
Transmission Shift Lever...1208
Parking Brake Switch...1209
LH Window Control Switch...1209
RH Window Control Switch...1209
Auxiliary Power Outlets...1209
INSTRUMENT PANEL AND INDICATORS...1210
UPPER RH SWITCH PANEL...1211
Brake Lock Switch...1211
F1 Start Switch...1211
Hazard Warning Lights Switch...1211
LOWER RH SWITCH PANEL...1212
Key Switch...1212
Ether Starting Aid Switch...1213
ASR Cut Switch...1213
ARSC Switch...1213
Automatic Idle Selector Switch (AISS)...1213
Auxiliary Brake Switch...1214
UPPER LH SWITCH PANEL...1215
Automatic Lubrication System Indicator...1215
LOWER LH SWITCH PANEL...1216
Head Light Switch...1216
Ladder Light Switch...1216
BackUp/Deck Light Switch...1217
Fog Light Switch...1217
Mode Select Switches 1 & 2...1217
Panel Light Dimmer Switch...1217
ELECTRONIC DISPLAY PANEL...1218
PILOT DISPLAY ITEMS...1219
METER DISPLAYS...1221
CAUTION ITEMS...1223
EMERGENCY STOP ITEMS...1225
CHARACTER DISPLAY...1228
REAR ELECTRICAL COMPARTMENT...1229
AUTOMATIC RETARD SPEED CONTROL (ARSC)...1232
AUTOMATIC SPIN REGULATOR (ASR)...1235
SECTION P - LUBRICATION AND SERVICE - INDEX...1238
SECTION P2 - LUBRICATION AND SERVICE - INDEX...1240
LUBRICATION AND SERVICE...1242
COOLANT SPECIFICATIONS...1242
Unacceptable Practices...1242
RADIATOR FILL PROCEDURE...1242
HYDRAULIC TANK SERVICE...1243
Filling Instructions...1243
TRANSMISSION OIL LEVEL CHECK...1243
QUICK FILL SERVICE CENTER...1244
PERIODIC REPLACEMENT OF CRITICAL PARTS...1244
10 HOUR (DAILY) INSPECTION...1246
10 HOUR (DAILY) INSPECTION (continued)...1247
250 HOUR INSPECTION...1248
250 HOUR INSPECTION (continued)...1249
250 HOUR INSPECTION (continued)...1250
500 HOUR INSPECTION...1251
1000 HOUR INSPECTION...1252
2000 HOUR INSPECTION...1253
5000 HOUR INSPECTION...1254
SECTION P3 - AUTOMATIC LUBRICATION SYSTEM - INDEX...1256
AUTOMATIC LUBRICATION SYSTEM...1258
GENERAL DESCRIPTION...1258
SYSTEM COMPONENTS...1262
SYSTEM OPERATION...1264
INJECTOR OPERATION...1265
LUBRICANT PUMP...1266
Pump Housing Oil Level...1266
Pump Pressure Control...1266
INJECTORS (SL-1 Series ?H?))...1267
Injector Specifications...1267
Injector Adjustment...1267
SYSTEM PRIMING...1268
Filter Assembly...1268
SYSTEM CHECK...1269
Lubrication Controller Check...1269
Lubrication Controller Operation...1269
Lubrication Controller Components...1269
Lubrication Controller Adjustment...1269
SYSTEM TROUBLESHOOTING CHART...1271
PREVENTATIVE MAINTENANCE...1273
Daily Lubrication System Inspection...1273
250 Hour Inspection...1273
1000 Hour Inspection...1274
PUMP REBUILD...1275
Disassembly...1275
Cleaning and Inspection...1278
Assembly...1278
SECTION R - SYSTEM SCHEMATICS - INDEX...1280
HYDRAULIC SYSTEM SCHEMATIC...1282
HYDRAULIC SYSTEM SCHEMATIC (COLD WEATHER -40? C)...1283
BRAKE...1284
HOOKUP...1285
ELECTRICAL WIRING...1293
HVAC WIRING...1316
CONNECTOR LOCATOR...1317