Komatsu Wheel Loader WA470 Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Komatsu Wheel Loader WA470, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.
Komatsu Wheel Loader WA470 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: 23,021 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
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MAIN SECTIONS
CEAM009203 - Wheel Loader WA470-6 Operation & Maintenance Manual....3
CEAM009203....3
INTRODUCTION....5
FOREWORD....6
SAFETY INFORMATION....7
APPROVED AND NON-APPROVED USES....8
Approved Functions....8
Non-Approved Functions....8
VISIBILITY STANDARD....9
Visibility in Immediate Area....9
12-M Radius Visibility....9
PRODUCT IDENTIFICATION....10
Machine....10
Service Meter Location....11
Directions of Machine....11
Machine Serial Number/Product Identification Number (PIN)....12
Engine Serial Number, EPA Regulations....12
SERIAL NUMBERS AND DEALER INFORMATION....13
Model: WA470-6....13
TABLE OF CONTENTS....14
SAFETY....27
SAFETY AND WARNING DECALS....28
Location of the Safety Labels....28
Safety Labels....29
GENERAL SAFETY RULES AND PRECAUTIONS....36
General Safety Rules....36
Safety at Job Site....37
Safety Features....37
Clothing and Protective Equipment....37
Keep Machine Clean....38
Fire and Explosion Prevention....38
Fire Caused by Fuel, Oil, Antifreeze, or Window Washer Fluid....38
Fire Caused by Accumulation of Flammable Material....39
Fire Caused by Electrical Wiring....39
Fire Caused by Piping....39
Explosion Caused by Lighting Equipment....39
Action if Fire Occurs....40
Fire Extinguisher and First Aid Kit....40
Mounting and Dismounting....41
Inside Operators Compartment....42
Emergency Escape from Operators Cab....42
Precautions When Standing Up from Operators Seat....43
Leaving Operators Compartment....44
Parking the Machine....45
Transporting the Machine....46
Precautions When Using ROPS....48
Unauthorized Modification....48
Precautions for Attachments and Options....48
Precautions When Cleaning Cab Glass....49
Asbestos Hazard Alert....49
Crush or Pinch-Point Dangers....50
Precautions for Ventilation Exhaust Gas....50
PRECAUTIONS BEFORE STARTING OPERATIONS....51
Pre-Operational Checks....51
Seat Belt Inspection....52
Ensure Good Visibility....53
Signs and Signals....53
Precaution for Warning Tag....54
Checks Before Starting Engine, Adjustments....54
Precautions When Starting....55
Precautions in Cold Areas....55
Precautions for Job Site....56
Work Site Hazards....56
Working on Loose or Unstable Ground....56
Prohibited Operations....57
Avoiding Dangerous Situations....57
Working Near High Voltage Cables....59
RULES FOR ROAD TRAVEL....60
Travel Precautions....60
Traveling on Slopes....61
Using the Brakes....62
Traveling in Reverse....62
Operating on Snow or Frozen Surfaces....63
PRECAUTIONS DURING INSPECTION AND MAINTENANCE....64
Warning Tags....64
Workplace Environment....64
Systems Equipped with ECSS....64
Equipment Storage....65
Working Under the Machine....65
Using Drop Lamps....66
Using Proper Tools....66
Keeping the Machine Clean....66
Precautions When Welding....66
Precautions When Using Hammer....67
Noise....67
Stopping Engine During Inspection and Maintenance....68
Running the Machine During Maintenance....70
Rules for Refueling the Machine....71
Cooling System Precautions....71
Window Washer Fluid....71
Battery Information....71
Precautions....71
Hazards....72
Using Booster Cables....73
Starting the Machine with Booster Cables....73
High-Pressure Precautions....74
Precautions for High-Pressure Oil....74
Safe Handling of High-Pressure Hoses....74
Precautions for High-Pressure Fuel....74
High-Temperature Precautions....75
High-Temperature Areas....75
High-Temperature Coolant....75
High-Temperature Oil....75
High Voltage....75
Accumulator and Gas Spring....76
Using Compressed Air....76
Disposal of Waste Materials....76
Inflating Tires....77
Storing Tires....77
Maintenance of Air Conditioner....78
Critical Parts....78
OPERATION....79
GENERAL VIEW....80
General View of Machine....80
General View of Controls and Gauges....81
Machine Monitor....82
Switch Panel....83
EXPLANATION OF COMPONENTS....84
Machine Monitor....84
Types of Warnings....85
Emergency Stop....85
Mistaken Operation....85
Inspection and Maintenance....85
Central Warning Lamp....85
Character Display Portion....86
Service Meter....87
Action Code Display....87
Failure Code Display....88
Filter, Oil Replacement Time Display....89
Emergency Stop Items....91
Brake Oil Pressure Caution Lamp....92
Engine Oil Pressure Caution Lamp....92
Battery Charge Circuit Caution Lamp....93
Steering Oil Pressure Caution Lamp (if equipped)....93
Caution Items....94
Brake Oil Temperature Caution Lamp....95
Torque Converter Oil Temperature Caution Lamp....95
Engine Coolant Temperature Caution Lamp....96
Hydraulic Oil Temperature Caution Lamp....96
Fuel Level Caution Lamp....96
Inspection and Maintenance Items....97
Radiator Coolant Level Caution Lamp....97
Engine Oil Level Caution Lamp....98
Battery Electrolyte Level Caution Lamp (if equipped)....98
Maintenance Caution Lamp....98
Air Cleaner Clogging Caution Lamp....99
Water Separator Caution Lamp....99
Transmission Oil Filter Clogging Caution Lamp....99
Pilot Display Portion....100
Parking Brake Pilot Lamp....101
Cooling Fan Reverse Rotation Pilot Lamp....101
Emergency Steering Pilot Lamp (if equipped)....101
Power Mode Pilot Lamp (P Mode)....102
Preheating Pilot Lamp....102
Semi-Auto Digging Pilot Lamp....102
Auto-Greasing Pilot Lamp (if equipped)....102
Joystick Pilot Lamp (if equipped)....102
Directional Selector Pilot Lamp (if equipped)....102
Economy Operation Display Lamp....103
Shift Indicator....103
Auto-Shift Pilot Lamp....103
Torque Converter Lockup Pilot Light (if equipped)....103
Shift Hold Pilot Lamp....104
Shift Lever Position Pilot Lamp....104
Turn Signal Pilot Lamp....104
Head Lamp High-Beam Pilot Lamp....104
Meter Display Portion....105
Torque Converter Oil Temperature Gauge....105
Engine Coolant Temperature Gauge....106
Hydraulic Oil Temperature Gauge....106
Fuel Gauge....106
Speedometer....107
Meter Display Pilot Lamp....107
OTHER FUNCTIONS OF MACHINE MONITOR....108
Overall Menu....108
Displaying Odometer....110
Resetting Filter, Oil Replacement Time....110
Entering Telephone Number....111
Selecting Language....112
Adjusting Monitor Brightness....114
Switching Travel Speed/Engine Speed Display....116
Switching Travel Speed/Engine Speed Display/Non-Display....117
SWITCHES AND CONTROLS....118
General View....118
Ignition Switch....120
Power Mode Selector Switch....120
Transmission Shift Mode Selector Switch....121
Transmission Cutoff Switch....121
Transmission Cutoff Set Switch....122
Lamp Switch....122
Turn Signal Lever....122
Dimmer Switch....123
Horn Button....123
Hazard Lamp Switch....123
Parking Brake Switch....124
Front Working Lamp Switch....124
Rear Working Lamp Switch....125
Machine Monitor Mode Selector Switch 1....125
Machine Monitor Mode Selector Switch 2....125
Kickdown Switch....126
Hold Switch....127
Front Wiper Switch....127
Rear Wiper Switch....128
Cigarette Lighter....128
Room Lamp Switch....128
Rear Heated Wire Glass Switch....128
ECSS Switch....129
Emergency Steering Switch (if equipped)....129
Cooling Fan Auto-Reverse Rotation Switch....130
Torque Converter Lockup Switch....133
CONTROL LEVERS, PEDALS....134
General View....134
Gearshift Lever....135
Directional Lever....136
Gearshift Lever Stopper....137
Work Equipment Lock Lever....137
Bucket Control Lever....138
Lift Arm Control Lever....138
Brake Pedals....139
Accelerator Pedal....139
SECURITY LOCKS AND SAFETY FEATURES....140
Steering Tilt Lock Lever....140
Frame Lock Bar....141
Cap with Lock....142
Fuel Tank Filler Port Cap....142
Hydraulic Tank Filler Port Cap....142
Backup Alarm....143
MACHINE FEATURES....144
Towing Pin....144
Grease Pump....144
Cab Door....145
Emergency Escape Right Door....145
Left Cab Door, Door Open Lock....147
Left Cab Door, Knob....148
Left Cab Door, Handle....148
Left Cab Sliding Window (Lock Release Knob)....148
Cab Wiper....149
Dust Indicator....149
Fire Extinguisher (if equipped)....149
ELECTRICAL....150
Power Outlet....150
Fuses....150
Fuse Capacity and Name of Circuit....151
Slow-Blow Fuse....152
WORK OPERATIONS....153
Walk-Around Check....153
Precautions Before Starting Work Operations....153
Check Before Starting Engine....157
Check Machine Monitor....157
Check Coolant Level, Add Coolant....158
Check Oil Level in Engine Oil Pan, Add Oil....159
Check Water Separator, Drain Water....160
Check Air Cleaner....161
Check Fuel Level, Add Fuel....162
Check Electric Wiring....163
Adjustments....165
Adjusting Seat....165
Removing or Installing Headrest....167
Adjusting Seat Belt....168
Adjusting Lever Stand....169
Adjusting Mirrors....170
Final Checks Before Starting Engine....171
Starting Engine....173
Normal Starting....173
Starting in Cold Weather....175
Automatic Warming-Up Operation....176
Operations and Checks After Starting Engine....177
Checks After Starting Engine....177
Breaking in the Machine....178
Normal Operation....178
Stopping Engine....180
Check After Stopping Engine....180
Moving the Machine (Directional, Speed), Stopping the Machine....182
Moving the Machine....182
Changing Gear Speed....185
Changing Direction....186
Stopping the Machine....188
Transmission Cutoff Function....189
Turning....191
Emergency Steering (if equipped)....192
Emergency Steering Self-Check Function....193
Operation of Work Equipment....194
Work Equipment Lock Lever....194
Lift Arm Control Lever....194
Bucket Control Lever....195
Work Possible Using Wheel Loader....197
Digging Operations....197
Loading Piled Soil or Blasted Rock....197
Digging and Loading on Level Ground....199
Leveling Operations....200
Pushing Operations....200
Load-and-Carry Operations....201
Loading Operations....202
Cross-Drive Loading....202
V-Shape Loading....202
Preparations for Loading, Gathering Rocks....203
Approaching Facing....203
Digging....204
Traveling in Reverse After Excavation....206
Approaching Dump Truck....207
Loading Dump Truck....208
Reversing Away From Dump Truck....209
Precautions During Work Operations....210
Piling Up Loads....210
Handling Blasted Rock....210
Loosened Boulders....214
Pit Excavation....214
Cutting Face Operations....214
Switching Between Forward and Reverse....214
Turning When Tires are Stationary....215
Wheel Brake Does Not Work....215
Braking Function....215
Lower the Center of Gravity when Turning....216
Permissible Water Depth....216
Driving Up or Down Slopes....216
Driving the Machine....217
Adjusting Work Equipment....218
Adjusting Boom Kickout....218
Adjusting Bucket Positioner....219
Bucket Level Indicator....220
Measuring Dump Angle....221
Measuring Bucket Dump Angle....221
Measuring Coupler Dump Angle....224
Parking the Machine....227
Checks After Completion of Operation....229
Before Stopping Engine....229
After Stopping Engine....229
Locking the Machine....230
HANDLING TIRES....232
Precautions When Handling Tires....232
Tire Pressure....233
Precautions for Using Load-and-Carry Method....234
TRANSPORTATION....235
Transportation Procedure....235
Loading and Unloading Trailers....236
Loading Machine....236
Securing Machine....237
Unloading Machine....239
LIFTING MACHINE....240
Lifting Position....240
Lifting Procedure....241
COLD WEATHER OPERATION....242
Precautions for Low Temperature....242
Fuel and Lubricants....242
Coolant....242
Battery....243
Precautions After Completion of Work....243
After Cold Weather....243
LONG-TERM STORAGE....244
Before Storage....244
During Storage....244
After Storage....244
AUTOMATIC AIR CONDITIONER....245
Control Panel....245
Main Power Switch....246
Fan Switch....246
Air Conditioner Switch....247
Auto Switch....248
Temperature Switch....248
FRESH/RECIRC Selector Switch....248
Mode Selector Switch....249
Method of Operation....250
Cooling Operation....250
Heating Operation....250
Drying-Heating and Demisting Operation....251
When Not Using the Air Conditioner Regularly....251
Precautions When Using Air Conditioner....251
Inspection and Maintenance....252
Cool Box....252
KOMTRAX....253
Basic Precautions....253
TROUBLESHOOTING....254
When Machine Runs Out of Fuel....254
Towing the Machine....254
When Engine Can Be Used....255
When Engine Cannot Be Used....255
Releasing Parking Brake....256
Emergency Travel Operation....258
If Battery is Discharged....259
Precautions....259
Removal and Installation of Battery....259
Precautions for Charging Battery....260
Starting Engine With Booster Cables....261
Precautions When Connecting or Disconnecting Booster Cable....261
Connecting Booster Cable....261
Starting Engine....262
Disconnecting Booster Cable....262
Lowering Work Equipment When Engine Has Stopped....263
Other Troubleshooting....264
Electrical System....264
Chassis....265
Engine....267
MAINTENANCE....269
GUIDES TO MAINTENANCE....270
Check Service Meter....270
Komatsu Genuine Replacement Parts....270
Komatsu Genuine Oils....270
Always Use Clean Washer Fluid....270
Always Use Clean Oil and Grease....270
Checking for Foreign Materials in Drained Oil and On Filters....270
Fuel Strainer....270
Welding Instructions....271
Do Not Drop Things Inside Machine....271
Dusty Work Sites....271
Avoid Mixing Oil....271
Locking Inspection Covers....271
Bleeding Air from Hydraulic Circuit....271
Precautions When Installing Hydraulic Hoses....272
Checks After Inspection and Maintenance....272
OUTLINES OF SERVICE....273
Handling Oil, Fuel, Coolant, and Performing Oil Clinic....273
Oil....273
Fuel....274
Coolant and Water for Dilution....274
Grease....275
Storing Oil and Fuel....275
Filters....275
Performing KOWA (Komatsu Oil Wear Analysis)....276
KOWA Analysis Items....276
Oil Sampling....276
Outline of Electric System....277
WEAR PARTS....278
Wear Parts List....278
RECOMMENDED FUEL, COOLANT, AND LUBRICANTS....279
Fuel, Coolant, and Lubricant Ambient Temperature Chart....280
Recommended Brands, Other Than Komatsu Genuine Oil....281
Biodiesel Usage....282
Biodiesel Recommendation for Komatsu Engines....282
Biodiesel Terminology....282
Certification and Standards....283
Warranty and Use of Biodiesel Fuel in Komatsu Engines....283
Requirements for Using Biodiesel Fuel in Komatsu Engines....283
Properties of Biodiesel....284
Komatsu Biodiesel Blend Specification for B5 to B20....285
Summary of Recommendations....286
STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS....287
Torque List....287
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS....289
Safety Critical Parts List....290
MAINTENANCE SCHEDULE CHART....292
SERVICE PROCEDURE....294
Initial 250 Hours Service....294
Initial 1000 Hours Service....294
When Required....295
Clean, Replace Air Cleaner Element....295
Clean Inside of Cooling System....299
Check Transmission Oil, Add Oil....303
Check Axle Oil Level, Add Oil....305
Clean Axle Case Breather....307
Clean Air Conditioner Condenser....308
Check Window Washing Fluid Level, Add Fluid....308
Clean Radiator Fins and Cooler Fins....309
Turn, Replace Bolt-On Cutting Edge....312
Replace Bucket Teeth (if equipped)....313
Check Air Conditioner....316
Replace Slow-Blow Fuse....318
Check Function of Accumulator....319
Select Tires....320
Check Tire Pressure....321
Clean, Replace Fuel Breather Filter....322
Check Before Starting....324
Every 50 Hours Service....325
Drain Water, Sediment from Fuel Tank....325
Every 100 Hours Service....326
Lubricate Rear Axle Pivot Pin....326
Check Oil Level in Hydraulic Tank, Add Oil....326
Clean Element in Air Conditioner Fresh Air Filter....327
Every 250 Hours Service....328
Check Battery Electrolyte Level....328
Check Parking Brake....329
Check Alternator Belt Tension, Adjust....330
Check Air Conditioner Compressor Belt Tension, Adjust....332
Check for Loose Wheel Hub Nuts, Tighten....334
Clean Element in Air Conditioner Recirculation Filter....334
Check Function of Brake Accumulator....335
Lubricating....336
Every 500 Hours Service....337
Change Oil in Engine Oil Pan, Replace Engine Oil Filter Cartridge....337
Replace Fuel Prefilter Cartridge....339
Every 1000 Hours Service....341
Replace Fuel Main Filter Cartridge....341
Change Oil in Transmission Case, Replace Oil Filter Cartridge, Clean Strainer....343
Clean Transmission Case Breather....344
Lubricating....345
Check Engine Air Intake Piping Clamps for Looseness....345
Replace Corrosion Resistor Cartridge....345
Every 2000 Hours Service....346
Change Oil in Hydraulic Tank, Replace Hydraulic Filter Element....346
Replace Hydraulic Tank Breather Element....349
Change Axle Oil....350
Replace Element in Air Conditioner Recirculation Filter, Fresh Air Filter....351
Check Brake Disc Wear....352
Check Function of PPC Accumulator....354
Check Alternator....355
Check Engine Valve Clearance, Adjust....355
Check Vibration Damper....355
Every 4000 Hours Service....356
Lubricating....356
Check Water Pump....358
Check Starting Motor....358
Check Air Conditioner Compressor, Adjust....358
Check for Loose Engine High-Pressure Piping Clamps, Hardening of Rubber....359
Check for Missing Fuel Spray Prevention Cap, Hardening of Rubber....360
Every 8000 Hours Service....361
Replace High-Pressure Piping Clamps....361
Replace Fuel Spray Prevention Cap....361
SPECIFICATIONS....363
SPECIFICATIONS....364
OPTIONS, ATTACHMENTS....367
JOYSTICK STEERING SYSTEM....368
Structure and Function....368
Components....369
Shift UP, Shift DOWN Switches....370
Directional Selector Switch....370
Joystick Steering Lever....370
Joystick ON/OFF Switch....370
HI/LOW Selector Switch....371
Horn Switch....371
Console Tilt Lever....371
Console Fore-and-Aft Adjustment Lever....371
Joystick Pilot Lamp....372
Armrest Adjustment Lever....372
Steering with Joystick Lever or Steering Wheel....373
Precautions for Steering with Joystick....374
Operating the Joystick Steering System....375
Getting In and Out of Operators Cab....378
Adjustments....379
Adjusting Joystick Console....379
Adjusting Seat....380
TORQUE CONVERTER LOCKUP....383
Components....383
Torque Converter Lockup Switch....384
Torque Converter Lockup Pilot Lamp....384
Shift Indicator....384
Character Display....384
Method of Operation....385
Warning/Limit Functions for Travel Speed....386
Travel Speed Warning Function....386
AM/FM RADIO CASSETTE STEREO SOUND SYSTEM....388
Sound System Components....390
Power Switch/Volume....390
Auto-Store/Preset Scan Button....390
Bass Control Knob....390
Treble Control Knob....391
Loudness Button....391
Time/Radio Display Selector Button....391
Tape Eject Button....392
Cassette Door....392
Fast-Forward, Rewind Buttons....392
Preset Buttons....392
Metal Tape Button....393
Manual Tuning Buttons....393
Seek Tuning Buttons....393
Band Selector Button....393
Method of Operation....394
Setting Preset Buttons....394
Using Auto-Preset....394
Using Manual Preset....394
Listening to Radio....395
Listening to Cassette Tape....395
Reversing the Tape....396
Precautions When Using....396
Handling Cassette Tape....396
MULTI-FUNCTION LEVER....397
Components....397
Work Equipment Lever....397
Kickdown Switch....398
Hold Switch....399
FNR Switch....399
Directional Selector Switch Actuation Switch....399
Directional Selector Pilot Lamp....400
Work Equipment Lock Switch....401
Using FNR Switch to Change Between Forward and Reverse....402
CENTRAL LUBRICATION SYSTEM....404
Automatic Greasing Circuit Diagram....404
WHEEL STOPPER....406
BATTERY DISCONNECTOR SWITCH....407
BUCKET AND TIRES....409
CEAM023501 - Wheel Loader WA470-6 Operation & Maintenance Manual....411
INTRODUCTION....413
FOREWORD....414
SAFETY INFORMATION....415
APPROVED AND NON-APPROVED USES....416
Approved Functions....416
Non-Approved Functions....416
VISIBILITY STANDARD....417
Visibility in Immediate Area....417
12-M Radius Visibility....417
PRODUCT IDENTIFICATION....418
Machine....418
Service Meter Location....419
Directions of Machine....419
Machine Serial Number/Product Identification Number (PIN)....420
Engine Serial Number, EPA Regulations....420
SERIAL NUMBERS AND DEALER INFORMATION....421
Model: WA470-6....421
TABLE OF CONTENTS....422
SAFETY....435
SAFETY AND WARNING DECALS....436
Location of the Safety Labels....436
Safety Labels....437
GENERAL SAFETY RULES AND PRECAUTIONS....444
General Safety Rules....444
Safety at Job Site....445
Safety Features....445
Clothing and Protective Equipment....445
Keep Machine Clean....446
Fire and Explosion Prevention....446
Fire Caused by Fuel, Oil, Antifreeze, or Window Washer Fluid....446
Fire Caused by Accumulation of Flammable Material....447
Fire Caused by Electrical Wiring....447
Fire Caused by Piping....447
Explosion Caused by Lighting Equipment....447
Action if Fire Occurs....448
Fire Extinguisher and First Aid Kit....448
Mounting and Dismounting....449
Inside Operators Compartment....450
Emergency Escape from Operators Cab....450
Precautions When Standing Up from Operators Seat....451
Leaving Operators Compartment....452
Parking the Machine....453
Transporting the Machine....454
Precautions When Using ROPS....456
Unauthorized Modification....456
Precautions for Attachments and Options....456
Precautions When Cleaning Cab Glass....457
Asbestos Hazard Alert....457
Crush or Pinch-Point Dangers....458
Precautions for Ventilation Exhaust Gas....458
PRECAUTIONS BEFORE STARTING OPERATIONS....459
Pre-Operational Checks....459
Ensure Good Visibility....459
Signs and Signals....459
Precaution for Warning Tag....460
Checks Before Starting Engine, Adjustments....460
Precautions When Starting....461
Precautions in Cold Areas....461
Precautions for Job Site....462
Work Site Hazards....462
Working on Loose or Unstable Ground....462
Prohibited Operations....463
Avoiding Dangerous Situations....463
Working Near High Voltage Cables....465
RULES FOR ROAD TRAVEL....466
Travel Precautions....466
Traveling on Slopes....467
Using the Brakes....468
Traveling in Reverse....468
Operating on Snow or Frozen Surfaces....469
PRECAUTIONS DURING INSPECTION AND MAINTENANCE....470
Warning Tags....470
Workplace Environment....470
Systems Equipped with ECSS....470
Equipment Storage....471
Working at High Places....471
Working Under the Machine....471
Using Drop Lamps....472
Using Proper Tools....472
Keeping the Machine Clean....472
Precautions When Welding....472
Precautions When Using Hammer....473
Noise....473
Stopping Engine During Inspection and Maintenance....474
Running the Machine During Maintenance....476
Rules for Refueling the Machine....477
Cooling System Precautions....477
Window Washer Fluid....477
Battery Information....477
Precautions....477
Hazards....478
Using Booster Cables....479
Starting the Machine with Booster Cables....479
High-Pressure Precautions....480
Precautions for High-Pressure Oil....480
Safe Handling of High-Pressure Hoses....480
Precautions for High-Pressure Fuel....480
High-Temperature Precautions....481
High-Temperature Areas....481
High-Temperature Coolant....481
High-Temperature Oil....481
High Voltage....481
Accumulator and Gas Spring....482
Using Compressed Air....482
Disposal of Waste Materials....482
Inflating Tires....483
Storing Tires....483
Maintenance of Air Conditioner....484
Critical Parts....484
Proper Tools....484
OPERATION....485
GENERAL VIEW....486
General View of Machine....486
General View of Controls and Gauges....487
Machine Monitor....488
Switch Panel....489
EXPLANATION OF COMPONENTS....490
Machine Monitor....490
Types of Warnings....491
Emergency Stop....491
Mistaken Operation....491
Inspection and Maintenance....491
Central Warning Lamp....491
Character Display Portion....492
Service Meter....493
Action Code Display....493
Failure Code Display....494
Filter, Oil Replacement Time Display....495
Emergency Stop Items....497
Brake Oil Pressure Caution Lamp....498
Engine Oil Pressure Caution Lamp....498
Battery Charge Circuit Caution Lamp....499
Steering Oil Pressure Caution Lamp (if equipped)....499
Caution Items....500
Brake Oil Temperature Caution Lamp....501
Torque Converter Oil Temperature Caution Lamp....501
Engine Coolant Temperature Caution Lamp....502
Hydraulic Oil Temperature Caution Lamp....502
Fuel Level Caution Lamp....502
Inspection and Maintenance Items....503
Radiator Coolant Level Caution Lamp....503
Engine Oil Level Caution Lamp....504
Battery Electrolyte Level Caution Lamp (if equipped)....504
Maintenance Caution Lamp....504
Air Cleaner Clogging Caution Lamp....505
Water Separator Caution Lamp....505
Transmission Oil Filter Clogging Caution Lamp....505
Pilot Display Portion....506
Parking Brake Pilot Lamp....507
Cooling Fan Reverse Rotation Pilot Lamp....507
Emergency Steering Pilot Lamp (if equipped)....507
Power Mode Pilot Lamp (P Mode)....508
Preheating Pilot Lamp....508
Semi-Auto Digging Pilot Lamp....508
Auto-Greasing Pilot Lamp (if equipped)....508
Joystick Pilot Lamp (if equipped)....508
Directional Selector Pilot Lamp (if equipped)....508
Economy Operation Display Lamp....509
Shift Indicator....509
Auto-Shift Pilot Lamp....509
Torque Converter Lockup Pilot Light (if equipped)....509
Shift Hold Pilot Lamp....510
Shift Lever Position Pilot Lamp....510
Turn Signal Pilot Lamp....510
Head Lamp High-Beam Pilot Lamp....510
Meter Display Portion....511
Torque Converter Oil Temperature Gauge....511
Engine Coolant Temperature Gauge....512
Hydraulic Oil Temperature Gauge....512
Fuel Gauge....512
Speedometer....513
Meter Display Pilot Lamp....513
OTHER FUNCTIONS OF MACHINE MONITOR....514
Overall Menu....514
Displaying Odometer....516
Resetting Filter, Oil Replacement Time....516
Entering Telephone Number....517
Selecting Language....518
Adjusting Monitor Brightness....520
Switching Travel Speed/Engine Speed Display....522
Switching Travel Speed/Engine Speed Display/Non-Display....523
SWITCHES AND CONTROLS....524
General View....524
Starting Switch....526
Power Mode Selector Switch....526
Transmission Shift Mode Selector Switch....527
Transmission Cutoff Switch....527
Transmission Cutoff Set Switch....528
Lamp Switch....528
Turn Signal Lever....528
Dimmer Switch....529
Horn Button....529
Hazard Lamp Switch....529
Parking Brake Switch....530
Front Working Lamp Switch....530
Rear Working Lamp Switch....531
Machine Monitor Mode Selector Switch 1....531
Machine Monitor Mode Selector Switch 2....531
Kickdown Switch....532
Hold Switch....533
Front Wiper Switch....533
Rear Wiper Switch....534
Cigarette Lighter....534
Room Lamp Switch....534
Rear Heated Wire Glass Switch....534
ECSS Switch....535
Emergency Steering Switch (if equipped)....535
Cooling Fan Auto-Reverse Rotation Switch....536
Torque Converter Lockup Switch....539
CONTROL LEVERS, PEDALS....540
General View....540
Gearshift Lever....541
Directional Lever....542
Gearshift Lever Stopper....543
Work Equipment Lock Lever....543
Bucket Control Lever....544
Lift Arm Control Lever....544
Brake Pedals....545
Accelerator Pedal....545
SECURITY LOCKS AND SAFETY FEATURES....546
Steering Tilt Lock Lever....546
Frame Lock Bar....547
Cap with Lock....548
Fuel Tank Filler Port Cap....548
Hydraulic Tank Filler Port Cap....548
Backup Alarm....549
MACHINE FEATURES....550
Towing Pin....550
Grease Pump....550
Cab Door....551
Emergency Escape Right Door....551
Left Cab Door, Door Open Lock....553
Left Cab Door, Knob....554
Left Cab Door, Handle....554
Left Cab Sliding Window (Lock Release Knob)....554
Cab Wiper....555
Dust Indicator....555
Fire Extinguisher (if equipped)....555
ELECTRICAL....556
Power Outlet....556
Fuses....556
Fuse Capacity and Name of Circuit....557
Slow-Blow Fuse....558
WORK OPERATIONS....559
Walk-Around Check....559
Precautions Before Starting Work Operations....559
Check Before Starting Engine....564
Check Machine Monitor....564
Check Coolant Level, Add Coolant....565
Check Oil Level in Engine Oil Pan, Add Oil....566
Check Water Separator, Drain Water....567
Check Air Cleaner....568
Check Fuel Level, Add Fuel....569
Check Electric Wiring....570
Adjustments....572
Adjusting Seat....572
Removing or Installing Headrest....574
Seat Belt Inspection....575
Adjusting Seat Belt....576
Adjusting Lever Stand....577
Adjusting Mirrors....578
Final Checks Before Starting Engine....579
Starting Engine....581
Normal Starting....581
Starting in Cold Weather....583
Automatic Warming-Up Operation....584
Operations and Checks After Starting Engine....585
Checks After Starting Engine....585
Breaking in the Machine....586
Normal Operation....586
Stopping Engine....588
Check After Stopping Engine....588
Moving the Machine (Directional, Speed), Stopping the Machine....590
Moving the Machine....590
Changing Gear Speed....593
Changing Direction....594
Stopping the Machine....596
Transmission Cutoff Function....597
Turning....599
Emergency Steering (if equipped)....600
Emergency Steering Self-Check Function....601
Operation of Work Equipment....602
Work Equipment Lock Lever....602
Lift Arm Control Lever....602
Bucket Control Lever....603
Work Possible Using Wheel Loader....605
Digging Operations....605
Loading Piled Soil or Blasted Rock....605
Digging and Loading on Level Ground....607
Leveling Operations....608
Pushing Operations....608
Load-and-Carry Operations....609
Loading Operations....610
Cross-Drive Loading....610
V-Shape Loading....610
Preparations for Loading, Gathering Rocks....611
Approaching Facing....611
Digging....612
Traveling in Reverse After Excavation....614
Approaching Dump Truck....615
Loading Dump Truck....616
Reversing Away From Dump Truck....617
Precautions During Work Operations....618
Piling Up Loads....618
Handling Blasted Rock....618
Loosened Boulders....622
Pit Excavation....622
Cutting Face Operations....622
Switching Between Forward and Reverse....622
Turning When Tires are Stationary....623
Wheel Brake Does Not Work....623
Braking Function....623
Lower the Center of Gravity when Turning....624
Permissible Water Depth....624
Driving Up or Down Slopes....624
Driving the Machine....625
Adjusting Work Equipment....626
Adjusting Boom Kickout....626
Adjusting Bucket Positioner....627
Bucket Level Indicator....628
Measuring Dump Angle....629
Measuring Bucket Dump Angle....629
Measuring Coupler Dump Angle....632
Parking the Machine....635
Checks After Completion of Operation....637
Before Stopping Engine....637
After Stopping Engine....637
Locking the Machine....638
HANDLING TIRES....640
Precautions When Handling Tires....640
Tire Pressure....641
Precautions for Using Load-and-Carry Method....642
TRANSPORTATION....643
Transportation Procedure....643
Loading and Unloading Trailers....644
Loading Machine....644
Securing Machine....645
Unloading Machine....647
LIFTING MACHINE....648
Lifting Position....648
Lifting Procedure....649
COLD WEATHER OPERATION....650
Precautions for Low Temperature....650
Fuel and Lubricants....650
Coolant....650
Battery....651
Precautions After Completion of Work....651
After Cold Weather....651
LONG-TERM STORAGE....652
Before Storage....652
During Storage....652
After Storage....652
AUTOMATIC AIR CONDITIONER....653
Control Panel....653
Main Power Switch....654
Fan Switch....654
Air Conditioner Switch....655
Auto Switch....656
Temperature Switch....656
FRESH/RECIRC Selector Switch....656
Mode Selector Switch....657
Method of Operation....658
Cooling Operation....658
Heating Operation....658
Drying-Heating and Demisting Operation....659
When Not Using the Air Conditioner Regularly....659
Precautions When Using Air Conditioner....659
Inspection and Maintenance....660
Cool Box....660
KOMTRAX....661
Basic Precautions....661
TROUBLESHOOTING....662
When Machine Runs Out of Fuel....662
Towing the Machine....662
When Engine Can Be Used....663
When Engine Cannot Be Used....663
Releasing Parking Brake....664
Emergency Travel Operation....666
If Battery is Discharged....667
Precautions....667
Removal and Installation of Battery....667
Precautions for Charging Battery....668
Starting Engine With Booster Cables....669
Precautions When Connecting or Disconnecting Booster Cable....669
Connecting Booster Cable....669
Starting Engine....670
Disconnecting Booster Cable....670
Lowering Work Equipment When Engine Has Stopped....671
Other Troubleshooting....672
Electrical System....672
Chassis....673
Engine....675
MAINTENANCE....677
GUIDES TO MAINTENANCE....678
Check Service Meter....678
Komatsu Genuine Replacement Parts....678
Komatsu Genuine Oils....678
Always Use Clean Washer Fluid....678
Always Use Clean Oil and Grease....678
Checking for Foreign Materials in Drained Oil and On Filters....678
Fuel Strainer....678
Welding Instructions....679
Do Not Drop Things Inside Machine....679
Dusty Work Sites....679
Avoid Mixing Oil....679
Locking Inspection Covers....679
Bleeding Air from Hydraulic Circuit....679
Precautions When Installing Hydraulic Hoses....680
Checks After Inspection and Maintenance....680
OUTLINES OF SERVICE....681
Handling Oil, Fuel, Coolant, and Performing Oil Clinic....681
Oil....681
Fuel....682
Coolant and Water for Dilution....682
Grease....683
Storing Oil and Fuel....683
Filters....683
Performing KOWA (Komatsu Oil Wear Analysis)....684
KOWA Analysis Items....684
Oil Sampling....684
Outline of Electric System....685
WEAR PARTS....686
Wear Parts List....686
RECOMMENDED FUEL, COOLANT, AND LUBRICANTS....687
Fuel, Coolant, and Lubricant Ambient Temperature Chart....688
Recommended Brands, Other Than Komatsu Genuine Oil....689
Biodiesel Usage....690
Biodiesel Recommendation for Komatsu Engines....690
Biodiesel Terminology....690
Certification and Standards....691
Warranty and Use of Biodiesel Fuel in Komatsu Engines....691
Requirements for Using Biodiesel Fuel in Komatsu Engines....691
Properties of Biodiesel....692
Komatsu Biodiesel Blend Specification for B5 to B20....693
Summary of Recommendations....694
STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS....695
Torque List....695
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS....697
Safety Critical Parts List....698
MAINTENANCE SCHEDULE CHART....700
SERVICE PROCEDURE....702
Initial 250 Hours Service....702
Initial 1000 Hours Service....702
When Required....703
Clean, Replace Air Cleaner Element....703
Clean Inside of Cooling System....707
Check Transmission Oil, Add Oil....711
Check Axle Oil Level, Add Oil....713
Clean Axle Case Breather....715
Clean Air Conditioner Condenser....716
Check Window Washing Fluid Level, Add Fluid....716
Clean Radiator Fins and Cooler Fins....717
Turn, Replace Bolt-On Cutting Edge....720
Replace Bucket Teeth (if equipped)....721
Check Air Conditioner....724
Replace Slow-Blow Fuse....726
Check Function of Accumulator....727
Select Tires....728
Check Tire Pressure....729
Clean, Replace Fuel Breather Filter....730
Check Before Starting....732
Every 50 Hours Service....733
Drain Water, Sediment from Fuel Tank....733
Every 100 Hours Service....734
Lubricate Rear Axle Pivot Pin....734
Check Oil Level in Hydraulic Tank, Add Oil....734
Clean Element in Air Conditioner Fresh Air Filter....735
Every 250 Hours Service....736
Check Battery Electrolyte Level....736
Check Parking Brake....737
Check Alternator Belt Tension, Adjust....738
Check Air Conditioner Compressor Belt Tension, Adjust....740
Check for Loose Wheel Hub Nuts, Tighten....742
Clean Element in Air Conditioner Recirculation Filter....742
Check Function of Brake Accumulator....743
Lubricating....744
Every 500 Hours Service....745
Change Oil in Engine Oil Pan, Replace Engine Oil Filter Cartridge....745
Replace Fuel Prefilter Cartridge....747
Every 1000 Hours Service....749
Replace Fuel Main Filter Cartridge....749
Change Oil in Transmission Case, Replace Oil Filter Cartridge, Clean Strainer....751
Clean Transmission Case Breather....752
Lubricating....753
Check Engine Air Intake Piping Clamps for Looseness....753
Every 2000 Hours Service....754
Change Oil in Hydraulic Tank, Replace Hydraulic Filter Element....754
Replace Hydraulic Tank Breather Element....757
Change Axle Oil....758
Replace Element in Air Conditioner Recirculation Filter, Fresh Air Filter....759
Check Brake Disc Wear....760
Check Function of PPC Accumulator....762
Check Alternator....763
Check Engine Valve Clearance, Adjust....763
Check Vibration Damper....763
Every 4000 Hours Service....764
Lubricating....764
Check Water Pump....766
Check Starting Motor....766
Check Air Conditioner Compressor, Adjust....766
Check for Loose Engine High-Pressure Piping Clamps, Hardening of Rubber....767
Check for Missing Fuel Spray Prevention Cap, Hardening of Rubber....768
Every 8000 Hours Service....769
Replace High-Pressure Piping Clamps....769
Replace Fuel Spray Prevention Cap....769
SPECIFICATIONS....771
SPECIFICATIONS....772
OPTIONS, ATTACHMENTS....775
JOYSTICK STEERING SYSTEM....776
Structure and Function....776
Components....777
Shift UP, Shift DOWN Switches....778
Directional Selector Switch....778
Joystick Steering Lever....778
Joystick ON/OFF Switch....778
HI/LOW Selector Switch....779
Horn Switch....779
Console Tilt Lever....779
Console Fore-and-Aft Adjustment Lever....779
Joystick Pilot Lamp....780
Armrest Adjustment Lever....780
Steering with Joystick Lever or Steering Wheel....781
Precautions for Steering with Joystick....782
Operating the Joystick Steering System....783
Getting In and Out of Operators Cab....786
Adjustments....787
Adjusting Joystick Console....787
Adjusting Seat....788
TORQUE CONVERTER LOCKUP....791
Components....791
Torque Converter Lockup Switch....792
Torque Converter Lockup Pilot Lamp....792
Shift Indicator....792
Character Display....792
Method of Operation....793
Warning/Limit Functions for Travel Speed....794
Travel Speed Warning Function....794
AM/FM RADIO CASSETTE STEREO SOUND SYSTEM....796
Sound System Components....798
Power Switch/Volume....798
Auto-Store/Preset Scan Button....798
Bass Control Knob....798
Treble Control Knob....799
Loudness Button....799
Time/Radio Display Selector Button....799
Tape Eject Button....800
Cassette Door....800
Fast-Forward, Rewind Buttons....800
Preset Buttons....800
Metal Tape Button....801
Manual Tuning Buttons....801
Seek Tuning Buttons....801
Band Selector Button....801
Method of Operation....802
Setting Preset Buttons....802
Using Auto-Preset....802
Using Manual Preset....802
Listening to Radio....803
Listening to Cassette Tape....803
Reversing the Tape....804
Precautions When Using....804
Handling Cassette Tape....804
AM/FM RADIO CD STEREO SOUND SYSTEM....805
MULTI-FUNCTION LEVER....806
Components....806
Work Equipment Lever....806
Kickdown Switch....807
Hold Switch....808
FNR Switch....808
Directional Selector Switch Actuation Switch....808
Directional Selector Pilot Lamp....809
Work Equipment Lock Switch....810
Using FNR Switch to Change Between Forward and Reverse....811
WHEEL STOPPER....813
BATTERY DISCONNECTOR SWITCH....814
BUCKET AND TIRES....816
CEAM026700 - Wheel Loader WA470-7 Operation & Maintenance Manual....817
COVER....817
FOREWORD ....819
BEFORE READING THIS MANUAL ....820
SAFETY INFORMATION ....821
INTRODUCTION ....822
USE OF MACHINE ....822
DIRECTIONS OF MACHINE ....822
PRODUCT INFORMATION ....823
PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE ....823
EPA REGULATIONS, ENGINE NUMBER PLATE ....823
SERVICE METER LOCATION ....824
YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR ....824
CONTENTS ....825
SAFETY ....829
SAFETY ....830
SAFETY LABELS ....832
LOCATION OF SAFETY LABELS ....832
GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE ....841
PRECAUTIONS BEFORE STARTING OPERATION ....841
PREPARATIONS FOR SAFE OPERATION ....842
FIRE PREVENTION ....844
PRECAUTIONS WHEN GETTING ON OR OFF MACHINE ....846
DO NOT GET CAUGHT IN WORK EQUIPMENT ....849
PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES ....849
UNAUTHORIZED MODIFICATION ....849
PRECAUTIONS RELATED TO ATTACHMENTS AND OPTIONS ....850
PRECAUTIONS WHEN RUNNING ENGINE INSIDE BUILDING ....850
PRECAUTIONS FOR OPERATION ....851
PRECAUTIONS FOR JOBSITE ....851
STARTING ENGINE ....854
OPERATION ....857
TRANSPORTATION ....863
TOWING ....864
PRECAUTIONS FOR MAINTENANCE ....865
PRECAUTIONS BEFORE STARTING INSPECTION AND MAINTENANCE ....865
PRECAUTIONS FOR INSPECTION AND MAINTENANCE ....870
TIRES ....874
OPERATION ....875
GENERAL VIEW ....876
GENERAL VIEW OF MACHINE ....876
GENERAL VIEW OF CONTROLS AND GAUGES ....878
SWITCH PANEL ....879
MACHINE MONITOR ....880
EXPLANATION OF COMPONENTS ....882
MACHINE MONITOR ....882
SWITCHES ....954
CONTROL LEVERS AND PEDALS ....968
OIL FILLER CAP ....974
ASHTRAY ....976
FRAME LOCK BAR ....977
TOWING PIN ....978
GREASE PUMP HOLDER ....979
BATTERY DISCONNECT SWITCH ....980
SYSTEM OPERATING LAMP ....982
BACKUP ALARM ....983
OPEN AND CLOSE CAB DOOR ....984
FUSE ....988
SLOW BLOW FUSE ....990
AUXILIARY ELECTRIC POWER ....991
OPTIONAL POWER SUPPLY OUTLET ....992
HANDLING RADIO ....993
HANDLING AUTO AIR CONDITIONER ....998
HANDLING FRONT WIPER ....1009
FIRE EXTINGUISHER ....1010
HANDLING REAR VIEW MONITOR ....1011
HANDLING Komatsu Diesel Particulate Filter (KDPF) ....1012
HANDLING Komatsu Closed Crankcase Ventilation (KCCV) ....1020
HANDLING MACHINES EQUIPPED WITH KOMTRAX ....1021
MACHINE OPERATIONS AND CONTROLS ....1023
CHECKS AND ADJUSTMENT BEFORE STARTING ENGINE ....1023
STARTING ENGINE ....1046
CHECKS AFTER STARTING ENGINE ....1051
STOPPING ENGINE ....1054
MACHINE OPERATION ....1055
STEERING MACHINE ....1065
WORK EQUIPMENT CONTROLS AND OPERATIONS ....1069
RECOMMENDED APPLICATIONS ....1071
RULES FOR OPERATION ....1077
BUCKET LEVEL INDICATOR ....1079
REMOTE POSITIONER ....1080
PARKING MACHINE ....1084
CHECK AFTER FINISHING WORK ....1086
LOCKING ....1087
HANDLING TIRES ....1088
TRANSPORTATION ....1090
TRANSPORTATION PROCEDURE ....1090
LOADING AND UNLOADING WITH TRAILER ....1091
LIFTING MACHINE ....1095
COLD WEATHER OPERATION ....1097
COLD WEATHER OPERATION INFORMATION ....1097
AFTER DAILY WORK COMPLETION ....1098
IN COLD AREAS ....1098
AFTER COLD WEATHER SEASON ....1098
LONG-TERM STORAGE ....1099
BEFORE STORAGE ....1099
DURING STORAGE ....1099
AFTER STORAGE ....1100
STARTING MACHINE AFTER LONG-TERM STORAGE ....1100
TROUBLES AND ACTIONS ....1101
RUNNING OUT OF FUEL ....1101
TOWING MACHINE ....1102
DISCHARGED BATTERY ....1107
OTHER TROUBLE ....1111
MAINTENANCE ....1117
RULES FOR MAINTENANCE ....1118
SERVICE METER READING ....1118
KOMATSU GENUINE REPLACEMENT PARTS ....1118
KOMATSU GENUINE LUBRICANTS ....1118
ALWAYS USE CLEAN WASHER FLUID ....1118
FRESH AND CLEAN LUBRICANTS ....1118
CHECK DRAINED OIL AND USED FILTER ....1118
CAUTION FOR REFILLING OIL OR FUEL ....1118
WELDING INSTRUCTIONS ....1118
DO NOT DROP THINGS INSIDE MACHINE ....1118
PRECAUTIONS FOR KDPF ....1118
DUSTY JOBSITES ....1118
AVOID MIXING OIL ....1119
LOCKING INSPECTION COVERS ....1119
BLEEDING AIR FROM HYDRAULIC CIRCUIT ....1119
PRECAUTIONS WHEN INSTALLING HYDRAULIC HOSES ....1119
CHECKS AFTER INSPECTION AND MAINTENANCE ....1119
FUEL AND LUBRICANTS TO MATCH THE AMBIENT TEMPERATURE ....1119
CLOSE ENGINE SIDE COVER SECURELY ....1119
OUTLINE OF MAINTENANCE ....1120
HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC ....1120
HANDLING ELECTRICAL COMPONENTS ....1124
STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS ....1125
TIGHTENING TORQUE LIST ....1125
MAINTENANCE SCHEDULE ....1126
MAINTENANCE SCHEDULE TABLE ....1126
MAINTENANCE PROCEDURE ....1128
INITIAL 10 HOURS MAINTENANCE (ONLY FOR THE FIRST 50 HOURS) ....1128
INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS) ....1128
WHEN REQUIRED ....1129
CHECKS BEFORE STARTING ....1152
EVERY 50 HOURS MAINTENANCE ....1153
EVERY 100 HOURS MAINTENANCE ....1154
EVERY 250 HOURS MAINTENANCE ....1156
EVERY 500 HOURS MAINTENANCE ....1165
EVERY 1000 HOURS MAINTENANCE ....1168
EVERY 2000 HOURS MAINTENANCE ....1173
EVERY 4000 HOURS MAINTENANCE ....1183
EVERY 4500 HOURS MAINTENANCE ....1186
EVERY 8000 HOURS MAINTENANCE ....1188
EVERY 9000 HOURS MAINTENANCE ....1189
SPECIFICATIONS ....1191
SPECIFICATIONS ....1192
ATTACHMENTS AND OPTIONS ....1195
TIRE AND BUCKET SELECTION ....1196
REPLACEMENT PARTS ....1197
SAFETY CRITICAL PARTS ....1198
SAFETY CRITICAL PARTS LIST ....1198
CONSUMABLE PARTS ....1199
CONSUMABLE PARTS LIST ....1199
RECOMMENDED FUEL, COOLANT, AND LUBRICANT ....1200
LUBRICATION CHART ....1200
LUBRICANTS TO MATCH THE AMBIENT TEMPERATURE AND RECOMMENDED GENUINE LUBRICANTS ....1203
RECOMMENDED BRANDS AND QUALITY FOR PRODUCTS OTHER THAN KOMATSU GENUINE OIL ....1205
INDEX ....1207
CEBM027200 - Wheel Loader WA470-7 Shop Manual....1210
CEBM027200 - WA470-7 s/n A47001 - and up....1210
00 Index and foreword ....1212
Index ....1213
Foreword, safety and general information ....1229
Important safety notice ....1229
How to read the shop manual ....1236
Explanation of terms for maintenance standard ....1238
Handling equipment of fuel system devices ....1240
Handling of intake system parts ....1241
Handling of hydraulic equipment ....1242
Method of disconnecting and connecting of push-pull type coupler ....1244
Handling of electrical equipment ....1247
How to read electric wire code ....1255
Precautions when performing operation ....1258
Practical use of KOMTRAX ....1262
Standard tightening torque table ....1263
List of abbreviation ....1267
Conversion table ....1272
01 Specification ....1278
Table of contents ....1279
Specifications ....1280
Specification drawing ....1280
Specifications ....1282
Weight table ....1288
Table of fuel, coolant, and lubricants ....1290
10 Structure and function ....1292
Table of contents ....1293
Engine and cooling system ....1295
Engine related parts ....1295
KVGT ....1297
EGR system piping drawing ....1303
EGR system circuit diagram ....1305
EGR valve ....1306
EGR cooler ....1308
KCCV layout drawing ....1310
KCCV ventilator ....1312
KDPF ....1314
Cooling system ....1318
Cooling fan pump ....1321
Cooling fan motor ....1330
Power train ....1337
Power train system ....1337
Drive shaft ....1340
Power train piping drawing ....1341
Transmission control ....1342
Torque converter ....1345
Transmission ....1350
Transmission control valve ....1369
Forward and reverse clutch ECMV and 1st and 2nd clutch ECMV ....1372
3rd, 4th clutch ECMV ....1379
Lockup clutch ECMV ....1386
Main relief and torque converter relief valve ....1390
Axle ....1392
Differential ....1394
Final drive ....1404
Steering system ....1406
Layout of steering parts ....1406
Steering column ....1407
Steering pump ....1408
Steering valve ....1420
Orbit-roll valve ....1434
Stop valve ....1440
Emergency steering motor ....1441
Emergency steering pump ....1442
Brake system ....1443
Layout of brake parts ....1443
Charge valve ....1445
Brake valve ....1451
Slack adjuster ....1455
Accumulator (for brake) ....1458
Brake ....1459
Parking brake control ....1462
Parking brake ....1463
Parking brake solenoid valve ....1464
Parking brake emergency release valve ....1467
Undercarriage and frame ....1468
Axle mount and center hinge pin ....1468
Tire ....1469
Hydraulic system ....1471
Hydraulic component layout ....1471
Work equipment control ....1473
Hydraulic tank ....1474
Double type gear pump ....1477
Work equipment pump ....1478
Control valve ....1499
CLSS ....1508
Hydraulic circuit diagram and names of valves ....1512
Accumulator charge valve ....1523
Work equipment lock solenoid valve ....1527
Accumulator (for PPC circuit) ....1528
Accumulator (for ECSS) ....1529
Work equipment ....1530
Work equipment linkage ....1530
Bucket ....1531
Bucket positioner and boom positioner ....1532
Cab and its attachments ....1533
ROPS cab ....1533
Electrical system ....1534
Engine control system ....1534
Preheating system ....1536
Engine power mode selector circuit ....1538
Engine output limit function ....1539
Automatic warm-up function ....1540
Parking brake control system ....1541
System operating lamp function ....1543
Battery disconnect switch function ....1545
Transmission controller system ....1547
Work equipment control system ....1568
Machine monitor system ....1584
Rear view monitor system ....1608
KOMTRAX system ....1611
System component parts ....1614
Sensor ....1641
20 Standard value tables ....1670
Table of contents ....1671
Standard service value table ....1672
Standard value table for engine ....1672
Standard value table for machine ....1674
Standard value table for electrical system ....1687
30 Testing and adjusting ....1702
Table of contents ....1703
General information on testing and adjusting ....1705
Tools for testing and adjusting ....1705
Sketch of tools for testing and adjusting ....1709
Engine and cooling system ....1711
Testing engine speed ....1711
Testing boost pressure ....1713
Testing exhaust gas color ....1715
Testing and adjusting valve clearance ....1717
Testing compression pressure ....1719
Testing blowby pressure ....1723
Testing engine oil pressure ....1725
Testing EGR valve and KVGT oil pressures ....1726
Testing fuel pressure ....1727
Testing fuel return rate and leakage ....1728
Bleeding air from fuel system ....1732
Testing fuel circuit for leakage ....1734
Handling cylinder cutout mode operation ....1735
Handling no injection cranking operation ....1736
Testing of KDPF and muffler stack for looseness and damage ....1737
Testing of installed condition of cylinder head and manifolds ....1738
Testing engine piping for damage and looseness ....1739
Testing and adjusting air conditioner compressor belt tension ....1740
Testing and adjusting alternator belt tension ....1742
Procedures for cleaning fuel doser ....1744
Writing compensation values at replacement of injector and engine controller ....1747
Power train ....1751
Adjusting transmission output speed sensor ....1751
Adjusting transmission input speed sensor ....1752
Flushing procedure for torque converter and transmission hydraulic circuit ....1753
Retrieval of disabled machine due to transmission valve failure ....1755
Testing oil leakage from axle final drive ....1757
Testing drive shaft for looseness, backlash, and damage ....1758
Testing and adjusting power train oil pressure ....1759
Steering system ....1774
Testing directional lever ....1774
Testing steering wheel ....1775
Testing work equipment control lever ....1777
Testing and adjusting steering circuit oil pressure ....1779
Bleeding air from steering cylinder circuit. ....1782
Testing and adjusting steering stopper valve ....1783
Brake system ....1784
Testing brake pedal ....1784
Testing and adjusting brake pedal linkage ....1785
Testing braking performance ....1786
Testing and adjusting of accumulator charge pressure ....1787
Testing of brake accumulator nitrogen gas pressure and procedure for charging brake accumulator with nitrogen gas ....1789
Testing wheel brake oil pressure ....1793
Testing lowering of wheel brake pressure ....1795
Testing wear of wheel brake disc ....1797
Bleeding air from wheel brake circuit ....1798
Releasing remaining pressure in brake accumulator circuit ....1800
Testing parking brake performance ....1801
Testing parking brake oil pressure ....1802
Testing wear of parking brake disc ....1803
Method of releasing parking brake manually ....1804
Hydraulic system ....1806
Testing fan speed ....1806
Testing fan pump circuit oil pressure ....1807
Bleeding air from hydraulic fan circuit ....1809
Testing and adjusting work equipment EPC oil pressure ....1811
Testing and adjusting work equipment oil pressure ....1814
Bleeding air from work equipment circuit ....1818
Releasing remaining pressure from work equipment circuit ....1819
Testing of ECSS accumulator nitrogen gas pressure and procedure for charging accumulator with nitrogen gas ....1820
Work equipment ....1824
Testing and adjusting bucket position detection lever ....1824
Testing and adjusting boom position detection lever ....1825
Electrical system ....1826
Adjusting replaced, reassembled or added sensor, controller, etc. with machine monitor ....1826
Special functions of machine monitor ....1828
Adjusting rearview camera angle ....1917
Handling voltage circuit of engine controller ....1918
Handling battery disconnect switch ....1919
Testing diodes ....1920
Pm clinic ....1921
Pm Clinic service ....1921
Check sheet ....1922
40 Troubleshooting ....1928
Table of contents ....1929
General information on troubleshooting ....1938
Troubleshooting points ....1938
Sequence of events in troubleshooting ....1940
Check before troubleshooting ....1942
Inspection procedure before troubleshooting ....1944
Preparation work for troubleshooting of electrical system ....1961
Classification and procedures for troubleshooting ....1967
Symptom and troubleshooting numbers ....1970
Information in troubleshooting table ....1973
Connector list and layout ....1975
Connector contact identification ....1989
T-branch box and T-branch adapter table ....2025
Fuse location table ....2031
Precautions for KDPF (KCSF and KDOC) Cleaning and Replacement ....2034
Precautions on troubleshooting of machine monitor ....2037
Processing procedure of harness checker for troubleshooting of machine monitor LCD unit ....2039
Fabrication of dummy temperature sensor (for KDOC and KDPF temperature sensors) ....2044
Fabrication of short-circuit connector (for CA1883 and CA3135) ....2045
Failure codes table ....2046
Troubleshooting by failure code (Display of code) ....2060
Failure code [1500L0] Double Engagement of T/M Clutches ....2060
Failure code [15SAL1] Release Trouble of ECMV (Forward) ....2061
Failure code [15SALH] Malfunction of ECMV (Forward) ....2063
Failure code [15SBL1] Release Trouble of ECMV (Reverse) ....2065
Failure code [15SBLH] Malfunction of ECMV (Reverse) ....2067
Failure code [15SEL1] Release Trouble of ECMV (1st) ....2069
Failure code [15SELH] Malfunction of ECMV (1st) ....2071
Failure code [15SFL1] Release Trouble of ECMV (2nd) ....2073
Failure code [15SFLH] Malfunction of ECMV (2nd) ....2075
Failure code [15SGL1] Release Trouble of ECMV (3rd) ....2077
Failure code [15SGLH] Malfunction of ECMV (3rd) ....2079
Failure code [15SHL1] Release Trouble of ECMV (4th) ....2081
Failure code [15SHLH] Malfunction of ECMV (4th) ....2083
Failure code [2F00MA] Failure of Parking Brake Circuit ....2085
Failure code [2G42ZG] Accumulator Oil Pressure Low (Front) ....2089
Failure code [2G43ZG] Accumulator Oil Pressure Low (Rear) ....2091
Failure code [879AKA] A/C Inner Sensor Open Circuit ....2093
Failure code [879AKB] A/C Inner Sensor Short Circuit ....2094
Failure code [879BKA] A/C Outer Sensor Open Circuit ....2095
Failure code [879BKB] A/C Outer Sensor Short Circuit ....2096
Failure code [879CKA] Ventilating Sensor Open Circuit ....2097
Failure code [879CKB] Ventilating Sensor Short Circuit ....2098
Failure code [879DKZ] Sunlight Sensor Open or Short Circuit ....2099
Failure code [879EMC] Ventilation Damper Abnormality ....2100
Failure code [879FMC] Air Mix Damper Abnormality ....2101
Failure code [989A00] Engine Overrun Prevention Activated ....2102
Failure code [989L00] Engine Controller Lock Caution 1 ....2103
Failure code [989M00] Engine Controller Lock Caution 2 ....2104
Failure code [989N00] Engine Controller Lock Caution 3 ....2105
Failure code [A1U0N3] HC Desorb Request 1 ....2106
Failure code [A1U0N4] HC Desorb Request 2 ....2108
Failure code [AA10NX] Air Cleaner Clogging ....2110
Failure code [B@BAZG] Eng Oil Press Low ....2112
Failure code [B@BAZK] Eng Oil Level Low ....2113
Failure code [B@BCNS] Eng Water Overheat ....2115
Failure code [B@BCZK] Eng Water Level Low ....2116
Failure code [B@CENS] T/C Oil Temp. Overheat ....2118
Failure code [B@HANS] HYD Oil Temp. Overheat ....2119
Failure code [CA115] Eng Ne and Bkup Speed Sens Error ....2120
Failure code [CA122] Chg Air Press Sensor High Error ....2121
Failure code [CA123] Chg Air Press Sensor Low Error ....2123
Failure code [CA131] Throttle Sensor High Error ....2125
Failure code [CA132] Throttle Sensor Low Error ....2127
Failure code [CA135] Eng Oil Press Sensor High Error ....2129
Failure code [CA141] Eng Oil Press Sensor Low Error ....2131
Failure code [CA144] Coolant Temp Sens High Error ....2133
Failure code [CA145] Coolant Temp Sens Low Error ....2135
Failure code [CA153] Chg Air Temp Sensor High Error ....2137
Failure code [CA154] Chg Air Temp Sensor Low Error ....2139
Failure code [CA187] Sensor 2 Supply Volt Low Error ....2141
Failure code [CA221] Ambient Press Sensor High Error ....2143
Failure code [CA222] Ambient Press Sensor Low Error ....2145
Failure code [CA227] Sensor 2 Supply Volt High Error ....2147
Failure code [CA234] Eng Overspeed ....2148
Failure code [CA238] Ne Speed Sensor Supply Volt Error ....2149
Failure code [CA239] Ne Speed Sens Supply Volt High Error ....2150
Failure code [CA271] IMV/PCV1 Short Error ....2151
Failure code [CA272] IMV/PCV1 Open Error ....2152
Failure code [CA273] PCV2 Short Error ....2153
Failure code [CA274] PCV2 Open Error ....2154
Failure code [CA322] Inj #1(L#1) Open/Short Error ....2155
Failure code [CA323] Inj #5(L#5) Open/Short Error ....2157
Failure code [CA324] Inj #3(L#3) Open/Short Error ....2159
Failure code [CA325] Inj #6(L#6) Open/Short Error ....2161
Failure code [CA331] Inj #2(L#2) Open/Short Error ....2163
Failure code [CA332] Inj #4(L#4) Open/Short Error ....2165
Failure code [CA343] ECM Critical Internal Failure ....2167
Failure code [CA351] Injectors Drive Circuit Error ....2168
Failure code [CA352] Sensor 1 Supply Volt Low Error ....2169
Failure code [CA356] Mass Air Flow Sensor High Error ....2171
Failure code [CA357] Mass Air Flow Sensor Low Error ....2173
Failure code [CA386] Sensor 1 Supply Volt High Error ....2175
Failure code [CA431] Idle Validation Sw Error ....2176
Failure code [CA432] Idle Validation Process Error ....2179
Failure code [CA441] Battery Voltage Low Error ....2182
Failure code [CA442] Battery Voltage High Error ....2184
Failure code [CA449] Rail Press Very High Error ....2185
Failure code [CA451] Rail Press Sensor High Error ....2186
Failure code [CA452] Rail Press Sensor Low Error ....2188
Failure code [CA515] Rail Press Sens Sup Volt High Error ....2190
Failure code [CA516] Rail Press Sens Sup Volt Low Error ....2192
Failure code [CA553] Rail Press High Error ....2194
Failure code [CA555] Crankcase Press High Error 1 ....2195
Failure code [CA556] Crankcase Press High Error 2 ....2196
Failure code [CA559] Rail Press Low Error ....2197
Failure code [CA595] Turbo Speed High Error 2 ....2201
Failure code [CA687] Turbo Speed Low Error ....2202
Failure code [CA689] Eng Ne Speed Sensor Error ....2204
Failure code [CA691] Intake Air Temp Sens High Error ....2206
Failure code [CA692] Intake Air Temp Sens Low Error ....2208
Failure code [CA697] ECM Internal Temp Sensor High Error ....2210
Failure code [CA698] ECM Int Temp Sensor Low Error ....2211
Failure code [CA731] Eng Bkup Speed Sens Phase Error ....2212
Failure code [CA778] Eng Bkup Speed Sensor Error ....2213
Failure code [CA1117] Persistent Data Lost Error ....2215
Failure code [CA1664] KDOC Malfunction ....2216
Failure code [CA1691] Regeneration Ineffective ....2219
Failure code [CA1695] Sensor 5 Supply Volt High Error ....2222
Failure code [CA1696] Sensor 5 Supply Volt Low Error ....2223
Failure code [CA1843] Crankcase Press Sens High Error ....2225
Failure code [CA1844] Crankcase Press Sens Low Error ....2227
Failure code [CA1879] KDPF Delta P Sensor High Error ....2229
Failure code [CA1881] KDPF Delta P Sensor Low Error ....2231
Failure code [CA1883] KDPF Delta P Sens In Range Error ....2233
Failure code [CA1921] KDPF Soot Load High Error 1 ....2236
Failure code [CA1922] KDPF Soot Load High Error 2 ....2239
Failure code [CA1923] Dosing Fuel Valve 1 High Error ....2244
Failure code [CA1924] Dosing Fuel Valve 1 Low Error ....2246
Failure code [CA1925] Dosing Fuel Valve 1 In Range Error ....2249
Failure code [CA1927] Dosing Fuel Press Sens High Error ....2251
Failure code [CA1928] Dosing Fuel Press Sens Low Error ....2253
Failure code [CA1942] Crankcase Press Sens In Range Error ....2255
Failure code [CA1963] Dosing Fuel Valve 1 Servo Error ....2256
Failure code [CA1977] Fuel Doser Open/Short Error ....2258
Failure code [CA1993] KDPF Delta Pressure Low Error ....2260
Failure code [CA2185] Throt Sensor Sup Volt High Error ....2262
Failure code [CA2186] Throt Sensor Sup Volt Low Error ....2264
Failure code [CA2249] Rail Press Very Low Error ....2266
Failure code [CA2265] Fuel Feed Pump Open Error ....2267
Failure code [CA2266] Fuel Feed Pump Short Error ....2269
Failure code [CA2271] EGR Valve Pos Sens High Error ....2271
Failure code [CA2272] EGR Valve Pos Sens Low Error ....2273
Failure code [CA2349] EGR Valve Solenoid Open Error ....2275
Failure code [CA2353] EGR Valve Solenoid Short Error ....2277
Failure code [CA2357] EGR Valve Servo Error ....2279
Failure code [CA2381] KVGT Pos Sens High Error ....2280
Failure code [CA2382] KVGT Pos Sens Low Error ....2282
Failure code [CA2383] KVGT Solenoid Open Error ....2284
Failure code [CA2386] KVGT Solenoid Short Error ....2286
Failure code [CA2387] KVGT Servo Error ....2288
Failure code [CA2555] Grid Htr Relay Volt Low Error ....2289
Failure code [CA2556] Grid Htr Relay Volt High Error ....2291
Failure code [CA2637] KDOC Face Plugging ....2293
Failure code [CA2639] Manual Stationary Regeneration Request ....2295
Failure code [CA2732] Dosing Fuel Valve 2 High Error ....2298
Failure code [CA2733] Dosing Fuel Valve 2 Low Error ....2300
Failure code [CA2741] Dosing Fuel Valve Swap Error ....2302
Failure code [CA2765] Inj Trim Data Error ....2304
Failure code [CA2878] Dosing Fuel Valve 2 Servo Error ....2305
Failure code [CA2881] Dosing Fuel Pressure Low Error 1 ....2308
Failure code [CA3133] KDPF Outlet Press Sens High Error ....2313
Failure code [CA3134] KDPF Outlet Press Sens Low Error ....2315
Failure code [CA3135] KDPF Outlet Press Sens In Range Error ....2317
Failure code [CA3167] Fuel Doser Degradation ....2320
Failure code [CA3251] KDOC Inlet Temp High Error ....2323
Failure code [CA3253] KDOC Temp Error - Non Regeneration ....2326
Failure code [CA3254] KDOC Outlet Temp High Error 1 ....2329
Failure code [CA3255] KDPF Temp Error - Non Regeneration ....2332
Failure code [CA3256] KDPF Outlet Temp High Error 1 ....2336
Failure code [CA3311] KDOC Outlet Temp High Error 2 ....2339
Failure code [CA3312] KDPF Outlet Temp High Error 2 ....2342
Failure code [CA3313] KDOC Inlet Temp Sensor Low Error ....2345
Failure code [CA3314] KDOC Inlet Temp Sens High Error ....2348
Failure code [CA3315] KDOC Inlet Temp Sens In Range Error ....2352
Failure code [CA3316] KDOC Outlet Temp Sens Low Error ....2357
Failure code [CA3317] KDOC Outlet Temp Sens High Error ....2360
Failure code [CA3318] KDOC Outlet Temp Sens In Range Error ....2364
Failure code [CA3319] KDPF Outlet Temp Sens High Error ....2369
Failure code [CA3321] KDPF Outlet Temp Sens Low Error ....2373
Failure code [CA3322] KDPF Outlet Temp Sens In Range Error ....2376
Failure code [CA3419] Mass Air Flow Sensor Sup Volt High Error ....2381
Failure code [CA3421] Mass Air Flow Sensor Sup Volt Low Error ....2383
Failure code [D150KA] Disconnection of Emerg. Steering Relay ....2385
Failure code [D150KB] Ground Fault of Emerg. Steering Relay ....2387
Failure code [D150KY] Hot Short of Emergency Steering Relay ....2389
Failure code [D160KA] Disconnection of Backup Lamp Relay Output ....2391
Failure code [D160KB] Ground Fault of Backup Lamp Relay Output ....2393
Failure code [D160KY] Hot Short of Backup Lamp Relay Output ....2395
Failure code [D191KA] Disconnection of Neutral Output Relay ....2397
Failure code [D191KB] Ground Fault of Neutral Output Relay ....2399
Failure code [D191KY] Hot Short of Neutral Output Relay ....2401
Failure code [D192KA] Disconnection of ECSS Solenoid ....2403
Failure code [D192KB] Ground Fault of ECSS Solenoid ....2405
Failure code [D192KY] Hot Short of ECSS Solenoid ....2406
Failure code [D19JKZ] Personal Code Relay Abnormality ....2407
Failure code [D1E6KA] Disconnection of Parking Brake Relay ....2409
Failure code [D1E6KB] Ground Fault of Parking Brake Relay ....2411
Failure code [D1E6KY] Hot Short of Parking Brake Relay ....2413
Failure code [D5ZHKA] Failure of Key SW C Signal ....2415
Failure code [D5ZHKB] Key SW C Signal Short Circuit ....2417
Failure code [D5ZHKZ] Failure of Key SW C Signal ....2419
Failure code [D5ZHL6] Disconnection of Key SW C ....2421
Failure code [D811MC] KOMTRAX Error ....2423
Failure code [D862KA] GPS Antenna Open Circuit ....2424
Failure code [D8ALKA] Operating Lamp Open Circuit (KOMTRAX) ....2425
Failure code [D8ALKB] Operating Lamp Short Circuit (KOMTRAX) ....2427
Failure code [D8AQK4] CAN2 Discon (KOMTRAX) 2 ....2429
Failure code [D8AQKR] CAN2 Discon (KOMTRAX) ....2430
Failure code [DAF0KT] Abnormality of Non-volatile Memory (MON) ....2432
Failure code [DAF0MB] Monitor ROM Abnormality ....2433
Failure code [DAF0MC] Monitor Error ....2434
Failure code [DAF3KK] Controller Power Source Low (MON) ....2435
Failure code [DAF8KB] Camera Power Supply Short Circuit ....2437
Failure code [DAFDKB] Monitor 12V Power Output Short Circuit ....2438
Failure code [DAFGMC] GPS Module Error ....2440
Failure code [DAFLKA] Operating Lamp Open Circuit (MON) ....2441
Failure code [DAFLKB] Operating Lamp Short Circuit (MON) ....2443
Failure code [DAFQKR] CAN2 Discon (Monitor) ....2445
Failure code [DAQ0KK] Controller Power Source Low (T/M) ....2446
Failure code [DAQ0KT] Abnormality of Non-volatile Memory (T/M) ....2449
Failure code [DAQ0MC] T/M Con Error ....2450
Failure code [DAQ1KA] Disconnection of Key SW ACC (T/M) ....2451
Failure code [DAQ2KK] Solenoid Power Source Low (T/M) ....2453
Failure code [DAQ4KB] Ground Fault of Sol. Self-Holding Relay ....2456
Failure code [DAQ9KQ] Inconsistency of Model Selection (T/M) ....2458
Failure code [DAQLKA] Operating Lamp Open Circuit (T/M) ....2459
Failure code [DAQLKB] Operating Lamp Short Circuit (T/M) ....2461
Failure code [DAQQKR] CAN2 Discon (Transmission Con) ....2463
Failure code [DAQRKR] CAN1 Discon (Transmission Con) ....2464
Failure code [DAQRMA] Inconsistency of Option Selection (T/M) ....2465
Failure code [DAZ9KQ] A/C Model Selection Abnormality ....2466
Failure code [DAZQKR] CAN2 Discon (Aircon ECU) ....2467
Failure code [DB2QKR] CAN2 Discon (Engine Con) ....2468
Failure code [DB2RKR] CAN1 Discon (Engine Con) ....2473
Failure code [DB90KK] Drop in BBC Controller Main Power Source ....2478
Failure code [DB90KT] Abnormality of Non-volatile Memory (BBC) ....2480
Failure code [DB90MC] BBC Error ....2481
Failure code [DB91KA] Disconnection of Key SW ACC (BBC) ....2482
Failure code [DB92KK] Solenoid Power Source Low (BBC) ....2484
Failure code [DB95KX] Failure of 5 V Power Source 1 ....2486
Failure code [DB96KX] Failure of 5 V Power Source 2 ....2488
Failure code [DB99KQ] Inconsistency of Model Selection (BBC) ....2490
Failure code [DB9LKA] Operating Lamp Open Circuit (BBC) ....2491
Failure code [DB9LKB] Operating Lamp Short Circuit (BBC) ....2493
Failure code [DB9QKR] CAN2 Discon (Bucket Boom Con) ....2495
Failure code [DB9RKR] CAN1 Discon (Bucket Boom Con) ....2496
Failure code [DB9RMA] Inconsistency of Option Selection (BBC) ....2497
Failure code [DBE5KX] Failure of 5V Power Source ....2498
Failure code [DBE6KX] Failure of 24 V Power Source ....2500
Failure code [DD1ALD] Ground Fault of Remote Positioner Set SW ....2502
Failure code [DDAAL6] Discon of Engine Shutdown Secondary Switch ....2504
Failure code [DDB6L4] Neutral Signal Malfunction ....2506
Failure code [DDD1LD] Failure of Bucket Positioner Set Switch ....2509
Failure code [DDK3KA] FNR SW Input Signal Disconnection ....2511
Failure code [DDK3KB] FNR SW Input Signal Short Circuit ....2514
Failure code [DDK6KA] FNR Lever Input Signal Disconnection ....2516
Failure code [DDK6KB] FNR Lever Input Signal Short Circuit ....2519
Failure code [DDNRKY] Hot Short of Work Equipment Lock SW ....2521
Failure code [DDT0L4] Failure of Shift Mode Select SW ....2523
Failure code [DDT4LD] Ground Fault of T/M Cut Off Set SW Signal ....2525
Failure code [DDT9LD] Ground Fault of T/M Cut Off SW Signal ....2527
Failure code [DDW9LD] Ground Fault of Kickdown Switch ....2529
Failure code [DDWLLD] Ground Fault of T/M Shift Hold SW ....2531
Failure code [DF10KA] Disconnection of Shift Lever Input ....2533
Failure code [DF10KB] Ground Fault of Shift Lever Input ....2535
Failure code [DGF1KA] Disconnection of T/M Oil Temp. Sensor ....2538
Failure code [DGF1KB] Ground Fault of T/M Oil Temp. Sensor ....2540
Failure code [DGH2KX] Out of Range of HYD Oil Temp. Sensor ....2542
Failure code [DGR2KB] Ground Fault of Brake Oil Temp. Sensor ....2544
Failure code [DGR2KZ] Failure of Brake Oil Temp. Sensor ....2545
Failure code [DGT1KA] Disconnection of T/C Oil Temp. Sensor ....2547
Failure code [DGT1KB] Ground Fault of T/C Oil Temp. Sensor ....2550
Failure code [DH21KA] Failure of Loader Pump Press. Sensor ....2552
Failure code [DH21KB] Loader Pump Press. Sensor Short Circuit ....2554
Failure code [DHA4KA] Failure of Air Cleaner Sensor Circuit ....2556
Failure code [DHPCKX] Out of Range of Boom Bottom Press. Sensor ....2558
Failure code [DHPDKX] Out of Range of Boom Head Press. Sensor ....2560
Failure code [DHT1KX] Out of Range of T/M Cut Off Press. Sensor ....2562
Failure code [DHT5KX] Out of Range of T/C Input Pressure Sensor ....2564
Failure code [DHT7KX] Out of Range of T/C Output Pressure Sensor ....2566
Failure code [DHT8KA] Failure of Steering Pump Press. Sensor ....2568
Failure code [DHT8KB] Steering Pump Press. Sensor Short Circuit ....2570
Failure code [DHT8ZG] Steering Oil Pressure Low ....2572
Failure code [DHUDKA] Failure of Emrg. Steering Press. Sensor ....2573
Failure code [DHUDKB] Emrg. Steering Press. S. Short Circuit ....2575
Failure code [DJF1KA] Disconnection of Fuel Level Sensor ....2577
Failure code [DK55KA] Failure of FNR Lever Potentio ....2579
Failure code [DK55KY] Hot Short of FNR Lever Potentio Circuit ....2582
Failure code [DK55L5] Failure of FNR Lever Potentio ....2584
Failure code [DK59KA] Failure of Boom Lever Potentio (Main) ....2585
Failure code [DK59KY] Hot Short of Boom Lever Potentio (Main) ....2588
Failure code [DK59L8] Boom Lever Potentio (Main & Sub) Disagree ....2591
Failure code [DK5AKA] Failure of Boom Lever Potentio (Sub) ....2595
Failure code [DK5AKY] Hot Short of Boom Lever Potentio (Sub) ....2598
Failure code [DK5BKA] Failure of Bucket Lever Potentio (Main) ....2601
Failure code [DK5BKY] Hot Short of Bucket Lever Potentio (Main) ....2604
Failure code [DK5BL8] Bucket Lever Potentio (Main&Sub) Disagree ....2607
Failure code [DK5CKA] Failure of Bucket Lever Potentio (Sub) ....2611
Failure code [DK5CKY] Hot Short of Bucket Lever Potentio (Sub) ....2614
Failure code [DK5DKA] Failure of 3rd Lever Potentio (Main) ....2617
Failure code [DK5DKY] Hot Short of 3rd Lever Potentio (Main) ....2620
Failure code [DK5DL8] 3rd Lever Potentio (Main & Sub) Disagree ....2622
Failure code [DK5EKA] Failure of 3rd Lever Potentio (Sub) ....2625
Failure code [DK5EKY] Hot Short of 3rd Lever Potentio (Sub) ....2628
Failure code [DKA0KA] Failure of Boom Angle Sensor ....2630
Failure code [DKA0KY] Hot Short of Boom Angle Sensor Circuit ....2632
Failure code [DKA0L0] Boom Angle Sensor Dislocation ....2634
Failure code [DKA1KA] Failure of Bucket Angle Sensor ....2636
Failure code [DKA1KY] Hot Short of Bucket Angle Sensor Circuit ....2638
Failure code [DLF1KA] Disconnection of T/M Input Speed Sensor ....2640
Failure code [DLF1LC] Failure of T/M Input Speed Sensor ....2642
Failure code [DLM3KA] Disconnection of Radiator Fan Speed Sensor ....2644
Failure code [DLM3LC] Failure of Radiator Fan Speed Sensor ....2646
Failure code [DLT3KA] Disconnection of Output Speed Sens. (Main) ....2648
Failure code [DLT3LC] Failure of Output Speed Sensor (Main) ....2650
Failure code [DPQ1KR] LIN Discon (Switch Panel) ....2652
Failure code [DPQ2KR] LIN Discon (LED Unit) ....2655
Failure code [DPQ3KR] LIN Discon (Rear View Monitor) ....2658
Failure code [DSJ0KR] CAN2 Discon (Meter Unit) ....2661
Failure code [DT20KB] Ground Fault of T/M Cut Off Indicator ....2663
Failure code [DT22KB] Ground Fault of Work Equip. Lock Indic. ....2665
Failure code [DV00KB] Ground Fault of Buzzer Output ....2667
Failure code [DW4PKA] Disconnection of Boom EPC Solenoid (Raise) ....2669
