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Komatsu WA380-5L Wheel Loader Shop Manual CEBM009703 – PDF DOWNLOAD
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Komatsu WA380-5L Wheel Loader Shop Manual
SERIAL NUMBERS WA380-5L A52001 and UP
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Description
Komatsu WA380-5L Wheel Loader Shop Manual CEBM009703
FILE DETAILS:
Komatsu WA380-5L Wheel Loader Shop Manual
Brands: Komatsu
Equipment Type: Wheel Loader
Manuals Type: Shop Manual
Machine Model: WA380-5L
Serial Number: A52001 and up
Book Code: CEBM009703
Language: English
Pages: 1488
File Format: Portable Document Format (PDF)
DESCRIPTION:
Komatsu WA380-5L Wheel Loader Shop Manual
1 GENERAL
- This shop manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity.
- This shop manual mainly contains the necessary technical information for operations performed in a service workshop. For ease of understanding, the manual is divided into the following sections. These sections are further divided into each main group of components.
GENERAL:
This section lists the general machine dimensions, performance specifications, component weights, and fuel, coolant and lubricant specification charts.
STRUCTURE, FUNCTION AND MAINTENANCE STANDARD:
This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting. In addition, this section gives the judgement standards when inspecting disassembled parts.
STANDARD VALUE TABLE:
This section explains the standard values for new machine and judgement criteria for testing, adjusting and troubleshooting. This standard value table is used to check the standard values in testing and adjusting and to judge parts in troubleshooting.
TESTING AND ADJUSTING:
This section explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs.
TROUBLESHOOTING:
Troubleshooting charts correlating “Problems” to “Causes” are also included in this section.
DISASSEMBLY AND ASSEMBLY:
This section explains the order to be followed when removing, installing, disassembling or assembling each component,as well as precautions to be taken for these operations.
DIAGRAMS AND SCHEMATICS
This section has the foldout drawings for the machine.
TABLE OF CONTENTS:
Komatsu WA380-5L Wheel Loader Shop Manual
COVER............................................................................................................................ 1 FOREWORD......................................................................................................................... 2 CONTENTS..................................................................................................................... 2 SAFETY....................................................................................................................... 21 SAFETY NOTICE............................................................................................................ 21 IMPORTANT SAFETY NOTICE.............................................................................................. 21 GENERAL PRECAUTIONS.................................................................................................. 21 PREPARATIONS FOR WORK................................................................................................ 21 PRECAUTIONS DURING WORK.............................................................................................. 21 GENERAL...................................................................................................................... 23 HOW TO READ THE SHOP MANUAL.................................................................................................. 24 VOLUMES.................................................................................................................. 24 DISTRIBUTION AND UPDATING................................................................................................ 24 FILING METHOD............................................................................................................ 24 REVISED EDITION MARK..................................................................................................... 24 REVISIONS................................................................................................................ 24 SYMBOLS.................................................................................................................. 24 HOISTING INSTRUCTIONS........................................................................................................ 25 HOISTING................................................................................................................. 25 WIRE ROPES............................................................................................................... 25 PUSH PULL COUPLER............................................................................................................ 26 TYPE 1................................................................................................................... 26 DISCONNECTION........................................................................................................ 26 CONNECTION........................................................................................................... 26 TYPE 2................................................................................................................... 27 DISCONNECTION........................................................................................................ 27 CONNECTION........................................................................................................... 27 TYPE 3................................................................................................................... 28 DISCONNECTION........................................................................................................ 28 CONNECTION........................................................................................................... 28 COATING MATERIALS............................................................................................................ 29 STANDARD TIGHTENING TORQUE................................................................................................... 31 STANDARD TIGHTENING TORQUE OF BOLTS AND NUTS............................................................................. 31 TIGHTENING TORQUE OF HOSE NUTS........................................................................................... 32 TIGHTENING TORQUE OF SPLIT FLANGE BOLTS.................................................................................. 32 TIGHTENING TORQUE FOR FLARED NUTS........................................................................................ 32 TABLE OF TIGHTENING TORQUES FOR O-RING BOSS PIPING JOINTS................................................................ 33 TABLE OF TIGHTENING TORQUES FOR O-RING BOSS PLUGS........................................................................ 33 TIGHTENING TORQUE TABLE FOR HOSES (TAPER SEAL TYPE AND FACE SEAL TYPE)................................................... 33 ELECTRIC WIRE CODE........................................................................................................... 34 CLASSIFICATION BY THICKNESS.............................................................................................. 34 CLASSIFICATION BY COLOR AND CODE......................................................................................... 34 CONVERSION TABLES............................................................................................................ 35 METHOD OF USING THE CONVERSION TABLE..................................................................................... 35 01 GENERAL....................................................................................................................... 41 SPECIFICATIONS............................................................................................................... 42 WEIGHT TABLE................................................................................................................. 46 FUEL, COOLANT AND LUBRICANTS................................................................................................. 48 GENERAL ASSEMBLY DRAWING..................................................................................................... 51 10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD.................................................................................. 53 COOLING SYSTEM............................................................................................................... 59 Specifications........................................................................................................... 59 ENGINE MOUNT, TRANSMISSION MOUNT............................................................................................. 60 POWER TRAIN.................................................................................................................. 61 POWER TRAIN SYSTEM DIAGRAM................................................................................................... 62 Without Torque Converter Lockup Clutch................................................................................... 62 With Torque Converter Lock-up Clutch..................................................................................... 63 Outline.................................................................................................................. 64 DRIVE SHAFT (PROPELLER SHAFT)................................................................................................ 65 Outline.................................................................................................................. 65 TORQUE CONVERTER, TRANSMISSION PIPING........................................................................................ 66 TORQUE CONVERTER............................................................................................................. 67 Without Lock-up Clutch................................................................................................... 67 Path Of Power Transmission............................................................................................... 69 Power Flow........................................................................................................... 69 Oil Flow............................................................................................................. 69 With Lock-up Clutch...................................................................................................... 70 Path Of Power Transmission............................................................................................... 74 Lock-up Clutch Disengaged............................................................................................ 74 Lock-up Clutch Engaged............................................................................................... 74 Oil Flow............................................................................................................. 75 TRANSMISSION................................................................................................................. 76 Outline.................................................................................................................. 82 F and R Clutches: Without Lock-up Clutch................................................................................. 83 F and R Clutches: With Lock-up Clutch.................................................................................... 84 1st and 4th Clutch....................................................................................................... 85 2nd and 3rd Clutch....................................................................................................... 86 Clutch Operation......................................................................................................... 87 Clutch Engaged....................................................................................................... 87 Clutch Disengaged.................................................................................................... 87 Forward 1st.............................................................................................................. 88 Operation............................................................................................................ 88 Forward 2nd.............................................................................................................. 89 Operation............................................................................................................ 89 Forward 3rd.............................................................................................................. 90 Operation............................................................................................................ 90 Forward 4th.............................................................................................................. 91 Operation............................................................................................................ 91 Reverse 1st.............................................................................................................. 92 Operation............................................................................................................ 92 TRANSMISSION CONTROL VALVE................................................................................................... 93 Without Lock-up Clutch (Transmission S/N 110643)......................................................................... 93 Without Lock-up Clutch (Transmission S/N 110644 and up).................................................................. 94 With Lock-up Clutch (Transmission S/N 110643)............................................................................ 96 With Lock-up Clutch (Transmission S/N 110644 and up)..................................................................... 97 Electronic Control Modulation Valve (ECMV)............................................................................... 99 ECMV for Speed Clutch.................................................................................................... 100 Outline of ECMV...................................................................................................... 100 ECMV and Proportional Solenoid....................................................................................... 100 ECMV and Fill Switch................................................................................................. 101 ECMV Actuation....................................................................................................... 101 ECMV for Lock-up Clutch.................................................................................................. 102 Outline.............................................................................................................. 102 Operation............................................................................................................ 103 Main Relief, Torque Converter Relief Valve............................................................................... 104 Outline.............................................................................................................. 105 Operation............................................................................................................ 105 Flow Valve............................................................................................................... 107 Operation............................................................................................................ 107 AXLE......................................................................................................................... 108 Front Axle............................................................................................................... 108 Rear Axle................................................................................................................ 109 DIFFERENTIAL................................................................................................................. 110 Front Differential....................................................................................................... 110 Rear Differential........................................................................................................ 112 Outline.............................................................................................................. 114 Limited Slip Differential................................................................................................ 115 Operation of Limited Slip Differential............................................................................... 117 FINAL DRIVE.................................................................................................................. 120 Outline.................................................................................................................. 122 AXLE MOUNTING, CENTER HINGE PIN.............................................................................................. 124 Outline.................................................................................................................. 124 STEERING PIPING.............................................................................................................. 128 STEERING COLUMN, ORBIT ROLL.................................................................................................. 129 STEERING VALVE............................................................................................................... 130 Overload Relief Valve.................................................................................................... 132 Function............................................................................................................. 132 Operation............................................................................................................ 132 Steering Relief Valve.................................................................................................... 133 Function............................................................................................................. 133 Steering Relief Valve Operation...................................................................................... 134 Demand Valve Operation............................................................................................... 135 Flow amp................................................................................................................. 138 Steering Valve Operation................................................................................................. 141 Neutral.............................................................................................................. 141 Turning Right........................................................................................................ 142 Turning Left......................................................................................................... 143 ORBIT-ROLL VALVE............................................................................................................. 144 Outline.................................................................................................................. 145 Structure................................................................................................................ 145 Connection Between the Hand Pump and Sleeve.............................................................................. 146 Function of Center Spring................................................................................................ 147 STOP VALVE................................................................................................................... 148 STEERING PUMP, SWITCH PUMP................................................................................................... 150 Outline.................................................................................................................. 151 EMERGENCY STEERING PUMP...................................................................................................... 152 Function................................................................................................................. 153 EMERGENCY STEERING MOTOR..................................................................................................... 154 Function................................................................................................................. 154 STEERING CYLINDER............................................................................................................ 156 JOYSTICK STEERING............................................................................................................ 158 Joystick PPC Valve....................................................................................................... 159 Function............................................................................................................. 159 Steering Switch Valve.................................................................................................... 161 Operation............................................................................................................ 161 BRAKE PIPING................................................................................................................. 162 BRAKE VALVE.................................................................................................................. 164 Brake Valve - Left....................................................................................................... 164 Brake Valve - Right...................................................................................................... 166 Outline.............................................................................................................. 167 Operation............................................................................................................ 168 CHARGE VALVE................................................................................................................. 172 Function................................................................................................................. 173 Operation................................................................................................................ 174 PPC RELIEF VALVE......................................................................................................... 176 Outline.................................................................................................................. 176 Operation................................................................................................................ 176 ACCUMULATOR - BRAKE.......................................................................................................... 178 Function................................................................................................................. 178 Specifications........................................................................................................... 178 Function................................................................................................................. 179 Specifications........................................................................................................... 179 BRAKE........................................................................................................................ 180 Front.................................................................................................................... 180 Outline.............................................................................................................. 181 Rear..................................................................................................................... 182 Outline.............................................................................................................. 183 Operation............................................................................................................ 184 PARKING BRAKE CONTROL........................................................................................................ 185 Outline.................................................................................................................. 185 PARKING BRAKE................................................................................................................ 186 OUTLINE.................................................................................................................. 186 Parking Brake Solenoid Valve............................................................................................. 188 Operation............................................................................................................ 189 Parking Brake Emergency Release Valve.................................................................................... 189 Outline.............................................................................................................. 189 HYDRAULIC PIPING............................................................................................................. 190 Outline.................................................................................................................. 192 WORK EQUIPMENT CONTROL LEVER................................................................................................. 194 For PPC Valve............................................................................................................ 194 For EPC Valve (If Equipped).............................................................................................. 195 HYDRAULIC TANK............................................................................................................... 196 Breather................................................................................................................. 197 TORQUE CONVERTER CHARGING, WORK EQUIPMENT, AND PILOT CONTROL PUMPS........................................................... 198 PPC RELIEF VALVE............................................................................................................. 200 Outline.................................................................................................................. 200 Operation................................................................................................................ 200 E.C.S.S. VALVE (If Equipped)................................................................................................. 202 WORK EQUIPMENT CONTROL VALVE................................................................................................. 205 2-Spool Valve............................................................................................................ 205 3-Spool Valve............................................................................................................ 209 Relief Valve............................................................................................................. 212 Function............................................................................................................. 212 Operation............................................................................................................ 212 Safety-suction Valve..................................................................................................... 213 Function............................................................................................................. 213 Operation............................................................................................................ 213 Suction Valve............................................................................................................ 214 Function............................................................................................................. 214 Operation............................................................................................................ 214 Cut-off Valve............................................................................................................ 215 Function............................................................................................................. 215 Operation............................................................................................................ 215 Work Equipment Control Valve Operation................................................................................... 217 NEUTRAL Position of Lift Arm and Bucket Spools....................................................................... 217 RAISE Position for Lift Arm Spool.................................................................................... 218 LOWER Position of Lift Arm Spool..................................................................................... 219 FLOAT Position of Lift Arm Spool..................................................................................... 220 DUMP Position for Bucket Spool....................................................................................... 221 TILT Position for Bucket Spool....................................................................................... 222 WORK EQUIPMENT PPC VALVE..................................................................................................... 224 Operation................................................................................................................ 226 PPC VALVE (FOR MULTI FUNCTION MONO LEVER).................................................................................... 230 Operation................................................................................................................ 232 EPC SOLENOID VALVE (If equipped)............................................................................................. 235 Function................................................................................................................. 236 Operation................................................................................................................ 236 SHUT OFF VALVE (If equipped)................................................................................................. 238 Function................................................................................................................. 238 ATTACHMENT PPC VALVE (If equipped)........................................................................................... 240 Operation................................................................................................................ 242 COOLING FAN MOTOR............................................................................................................ 244 Model: LMF28............................................................................................................. 244 Hydraulic Motor...................................................................................................... 246 Suction Valve........................................................................................................ 247 Operation of Revolution Direction Changeover Valve................................................................... 248 COOLING FAN MOTOR DRIVE PUMP................................................................................................. 250 Model: LPV............................................................................................................... 250 Servo Valve.............................................................................................................. 256 Safety Valve............................................................................................................. 258 WORK EQUIPMENT LINKAGE....................................................................................................... 260 BUCKET....................................................................................................................... 262 BUCKET POSITIONER, BOOM KICK-OUT............................................................................................. 263 Bucket Positioner........................................................................................................ 264 Boom Kick-out............................................................................................................ 264 Proximity Switch Operation............................................................................................... 265 When Lift Arm Is Raised.............................................................................................. 265 When Bucket Is Tilted................................................................................................ 267 WORK EQUIPMENT CYLINDER...................................................................................................... 270 Lift Arm Cylinder........................................................................................................ 270 Bucket Cylinder.......................................................................................................... 270 CAB.......................................................................................................................... 272 AIR CONDITIONER.............................................................................................................. 273 Air Conditioner Piping................................................................................................... 273 MACHINE MONITORING SYSTEM.................................................................................................... 274 Outline.................................................................................................................. 274 Individual Circuit Diagrams of the Machine Monitor....................................................................... 276 Starting and Lighting Functions...................................................................................... 276 Load Meter........................................................................................................... 276 Sensing Functions.................................................................................................... 277 Power Supply and Network............................................................................................. 278 Automatic Preheating Function........................................................................................ 279 MACHINE MONITOR.............................................................................................................. 282 Speedometer Specifications............................................................................................... 282 Load Meter Specification (If Equipped)................................................................................... 283 Table of Monitor Indication Items........................................................................................ 284 Setting the Machine Monitor.............................................................................................. 291 Service Mode Functions............................................................................................... 294 Items Related To The Fault History Of Electric System................................................................ 298 Items Related to the Fault History Of Machine System................................................................. 300 Items Related to Maintenance Monitor................................................................................. 302 Real-Time Monitoring Function........................................................................................ 304 Real-Time Monitoring Items........................................................................................... 306 Load Meter Function (If equipped).................................................................................... 316 Machine Setting...................................................................................................... 326 Setting Necessary For Option Mounting................................................................................ 327 Optional Device Setting For Machine Monitor.......................................................................... 328 Adjustment for Each EPC.............................................................................................. 336 TRANSMISSION CONTROL SYSTEM.................................................................................................. 354 System Diagram........................................................................................................... 354 Control Function..................................................................................................... 355 Electric Circuit Diagram (Standard).................................................................................. 378 Electric Circuit Diagram (If Equipped)............................................................................... 380 TRANSMISSION CONTROLLER...................................................................................................... 382 WORK EQUIPMENT CONTROL SYSTEM................................................................................................ 384 System Diagram........................................................................................................... 384 Electric Circuit Diagram................................................................................................. 398 WORK EQUIPMENT CONTROLLER.................................................................................................... 400 ELECTRIC TRANSMISSION CONTROL................................................................................................ 402 Functions................................................................................................................ 403 Combination Switch....................................................................................................... 404 Overview............................................................................................................. 404 Functions............................................................................................................ 404 Operation............................................................................................................ 405 KICK DOWN, HOLD SWITCH....................................................................................................... 406 Functions................................................................................................................ 406 ENGINE STARTING CIRCUIT...................................................................................................... 407 Function................................................................................................................. 407 Operation................................................................................................................ 408 ENGINE STOP CIRCUIT.......................................................................................................... 409 OPERATION................................................................................................................ 409 PREHEATING CIRCUIT........................................................................................................... 410 Outline.................................................................................................................. 410 Operation................................................................................................................ 410 ENGINE POWER MODE SELECTOR CIRCUIT........................................................................................... 411 Function................................................................................................................. 411 Operation................................................................................................................ 411 PARKING BRAKE CIRCUIT........................................................................................................ 412 Operation................................................................................................................ 412 SENSORS...................................................................................................................... 416 Engine Speed Sensor...................................................................................................... 416 Engine Oil Pressure Sensor............................................................................................... 417 Engine Oil Level Sensor.................................................................................................. 417 Temperature Sensor....................................................................................................... 418 Coolant Temperature - For Monitor.................................................................................... 418 Torque Converter Oil Temperature..................................................................................... 418 Hydraulic Oil Temperature............................................................................................ 418 Transmission Oil Temperature......................................................................................... 418 Brake Oil Temperature................................................................................................ 418 Coolant Temperature - Preheating..................................................................................... 418 Transmission Cut-off Pressure Sensor..................................................................................... 419 Coolant Level Sensor..................................................................................................... 420 Fuel Level Sensor........................................................................................................ 421 Lift Arm Angle Sensor (If Equipped)...................................................................................... 422 Air Cleaner Clogging Sensor.............................................................................................. 423 Load Meter Pressure Sensor (If Equipped)................................................................................. 423 Battery Electrolyte Level Sensor(If Equipped)............................................................................ 424 Relay.................................................................................................................... 425 20 STANDARD VALUE TABLES......................................................................................................... 427 STANDARD SERVICE VALUE TABLE................................................................................................. 428 Standard Service Value Table For Engine.................................................................................. 428 Standard Value Table For Chassis......................................................................................... 429 TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING............................................................................ 440 Special Tool Drawing..................................................................................................... 442 30 TESTING AND ADJUSTING......................................................................................................... 437 ENGINE COMPONENTS............................................................................................................ 443 Determining a Defective Cylinder......................................................................................... 443 Procedures........................................................................................................... 443 Determining Cylinder Group........................................................................................... 443 Isolating the Defective Cylinder..................................................................................... 443 Measuring Engine Speed................................................................................................... 444 Measuring Exhaust Temperature............................................................................................ 446 Measuring Exhaust Smoke.................................................................................................. 448 Adjusting Valve Clearance................................................................................................ 449 Measuring Compression Pressure........................................................................................... 451 Measuring Blow-by Pressure............................................................................................... 453 Measuring Engine Oil Pressure............................................................................................ 454 Measuring Intake Air Pressure (Boost Pressure)........................................................................... 455 Testing And Adjusting Fuel Injection Timing.............................................................................. 456 Adjusting Engine Speed Sensor............................................................................................ 457 Bleeding Air From Fuel Circuit........................................................................................... 458 Adjusting Engine Stop Solenoid........................................................................................... 459 ADJUSTING ACCELERATOR PEDAL.................................................................................................. 460 Adjusting the Power Mode................................................................................................. 460 Adjusting the Normal Mode................................................................................................ 461 ADJUSTING TRANSMISSION SPEED SENSOR.......................................................................................... 462 POWER TRAIN OIL PRESSURE..................................................................................................... 463 FLUSHING TORQUE CONVERTER, TRANSMISSION AND HYDRAULIC CIRCUIT................................................................ 467 TRANSMISSION VALVE FAILS..................................................................................................... 468 MOVING MACHINE........................................................................................................... 468 STEERING CONTROL............................................................................................................. 470 STEERING OIL PRESSURE........................................................................................................ 471 TESTING HYDRAULIC FAN........................................................................................................ 473 BRAKE SYSTEM................................................................................................................. 474 Measuring Brake Oil Pressure............................................................................................. 474 Testing Wear of Wheel Brake Disc......................................................................................... 476 Bleeding Air from Brake Circuit.......................................................................................... 477 Testing Wear of Parking Brake Disc....................................................................................... 478 Manual Release Method for Parking Brake.................................................................................. 479 ACCUMULATOR CHARGE PRESSURE.................................................................................................. 480 PPC OIL PRESSURE............................................................................................................. 482 WORK EQUIPMENT HYDRAULIC PRESSURE............................................................................................ 485 BUCKET POSITIONER............................................................................................................ 487 BOOM KICK-OUT................................................................................................................ 488 PROXIMITY SWITCH ACTUATION................................................................................................... 489 ADJUSTING MACHINE MONITOR.................................................................................................... 490 LOAD METER................................................................................................................... 493 BLEEDING AIR................................................................................................................. 497 Fan Motor Circuit........................................................................................................ 497 Work Equipment PPC Circuit............................................................................................... 497 Cylinders................................................................................................................ 497 RELEASING REMAINING PRESSURE................................................................................................. 498 In Hydraulic Circuit..................................................................................................... 498 E.C.S.S. Damper Circuit.................................................................................................. 499 PM-CLINIC INSPECTION TABLE................................................................................................... 500 40 TROUBLESHOOTING............................................................................................................... 503 POINTS TO REMEMBER WHEN TROUBLESHOOTING...................................................................................... 517 SEQUENCE OF EVENTS IN TROUBLESHOOTING........................................................................................ 519 PRECAUTIONS WHEN CARRYING OUT MAINTENANCE.................................................................................... 520 Precautions When Handling Electrical Equipment........................................................................... 520 Handling Electronic Control Unit......................................................................................... 524 When Troubleshooting Electrical Circuits................................................................................. 526 ELECTRIC WIRE CODE........................................................................................................... 527 Classification by Thickness.............................................................................................. 527 Classification by Color and Code......................................................................................... 527 How to Read Electric Wire Code........................................................................................... 528 Points to Remember When Handling Hydraulic Equipment..................................................................... 530 CHECKS BEFORE TROUBLESHOOTING................................................................................................ 532 2. Check for impurities in fuel.......................................................................................... 532 3. Check hydraulic oil level............................................................................................. 532 4. Check hydraulic strainer.............................................................................................. 532 5. Check swing machinery oil level....................................................................................... 532 6. Check engine oil level................................................................................................ 532 7. Check coolant level................................................................................................... 532 8. Check dust indicator for clogging..................................................................................... 532 9. Check hydraulic filter................................................................................................ 532 10. Check final drive oil level.......................................................................................... 532 11. Check for looseness, corrosion of battery terminal, wiring........................................................... 532 12. Check for looseness, corrosion of alternator terminal, wiring........................................................ 532 13. Check for looseness, corrosion of starting motor terminal, wiring.................................................... 532 14. Check operation of instruments....................................................................................... 532 15. Check for abnormal noise, smell...................................................................................... 532 16. Check for oil leakage................................................................................................ 532 17. Carry out air bleeding............................................................................................... 532 18. Check battery voltage (Engine stopped)............................................................................... 532 19. Check battery electrolyte level...................................................................................... 532 20. Check for discolored, burnt, exposed wiring.......................................................................... 532 21. Check for missing wiring clamps, hanging wire........................................................................ 532 22. Check for water leaking on wiring (Pay particular attention to water leaking on connectors or terminals)............. 532 23. Check for blown, corroded fuses...................................................................................... 532 24. Check alternator voltage (Engine running at 1/2 throttle or above)................................................... 532 25. Sound of actuation of battery relay (When starting switch is turned ON, OFF)......................................... 532 SPECIAL FUNCTIONS OF MACHINE MONITOR......................................................................................... 533 Flow of Modes and Functions.............................................................................................. 534 Failure Code Table....................................................................................................... 542 Monitoring Code Table.................................................................................................... 555 CONNECTION TABLE FOR CONNECTOR PIN NUMBERS................................................................................... 567 T-ADAPTER TABLE.............................................................................................................. 590 CONNECTOR TYPES AND LOCATIONS................................................................................................ 593 CONNECTOR LAYOUT DRAWING..................................................................................................... 600 TRANSMISSION CONTROL SYSTEM DIAGRAM.......................................................................................... 606 TRANSMISSION CONTROL SYSTEM (TM MODE)........................................................................................ 609 Failure Code [1500L1].................................................................................................... 609 Double Engagement Detected........................................................................................... 609 Failure Code [15SAL1].................................................................................................... 610 Short Circuit in F_ECM Fill Switch System............................................................................ 610 Failure Code [15SALH].................................................................................................... 612 F_ECM Fill Switch System Disconnected................................................................................ 612 Failure Code [15SBL1].................................................................................................... 614 Short Circuit in R_ECM Fill Switch System............................................................................ 614 Failure Code [15SBLH].................................................................................................... 616 R_ECM Fill Switch System Disconnected................................................................................ 616 Failure Code [15SEL1].................................................................................................... 618 Short Circuit in 1st_ECM Fill Switch System.......................................................................... 618 Failure Code [15SELH].................................................................................................... 620 1st_ECM Fill Switch System Disconnected.............................................................................. 620 Failure Code [15SFL1].................................................................................................... 622 Short Circuit in 2nd_ECM Fill Switch System.......................................................................... 622 Failure Code [15SFLH].................................................................................................... 624 2nd_ECM Fill Switch System Disconnected.............................................................................. 624 Failure Code [15SGL1].................................................................................................... 626 Short Circuit in 3rd_ECM Fill Switch System.......................................................................... 626 Failure Code [15SGLH].................................................................................................... 628 3rd_ECM Fill Switch System Disconnected.............................................................................. 628 Failure Code [15SHL1].................................................................................................... 630 Short Circuit in 4th_ECM Fill Switch System.......................................................................... 630 Failure Code [15SHLH].................................................................................................... 632 4th_ECM Fill Switch System Disconnected.............................................................................. 632 Failure Code [15SJL1].................................................................................................... 634 Short Circuit in Lock-up_ECM Fill Switch System...................................................................... 634 Failure Code [15SJLH].................................................................................................... 635 Lock-up_ECM Fill Switch System Disconnected.......................................................................... 635 Failure Code [989F00].................................................................................................... 636 Transmission Protection Caution...................................................................................... 636 Failure Code [B@C7NS].................................................................................................... 637 Rear Brake Cooling Oil Overheat...................................................................................... 637 Failure Code [D150KA].................................................................................................... 638 Emergency Steering Relay Output System Disconnected.................................................................. 638 Failure Code [D150KB].................................................................................................... 639 Short Circuit in Emergency Steering Relay Output System.............................................................. 639 Failure Code [D160KA].................................................................................................... 640 Back-up Alarm Relay Output System Disconnected....................................................................... 640 Failure Code [D160KB].................................................................................................... 641 Short Circuit in Back-up Alarm Relay Output System................................................................... 641 Failure Code [D191KA].................................................................................................... 642 Neutral Safety Relay Output System Disconnected...................................................................... 642 Failure Code [D191KB].................................................................................................... 644 Short Circuit in Neutral Safety Relay Output System.................................................................. 644 Failure Code [D192KA].................................................................................................... 646 E.C.S.S. Relay Output System Disconnected............................................................................ 646 Failure Code [D192KB].................................................................................................... 647 Short Circuit in E.C.S.S. Relay Output System........................................................................ 647 Failure Code [D198KB].................................................................................................... 648 Ground Fault in the Low Temperature By-pass Relay System............................................................. 648 Failure Code [D198KY].................................................................................................... 650 Hot-short in the Low-temperature By-pass Relay System................................................................ 650 Failure Code [DAQ0KK].................................................................................................... 652 Controller Power Supply Voltage Lowered.............................................................................. 652 Failure Code [DAQ2KK].................................................................................................... 654 Defective Solenoid Power Supply System............................................................................... 654 Failure Code [DAQ9KQ].................................................................................................... 656 Model Selection Signal Mismatch...................................................................................... 656 Failure Code [DDK3KA].................................................................................................... 658 No Right FNR Switch Signal Input..................................................................................... 658 Failure Code [DDK3KB].................................................................................................... 660 Multiple Right FNR Switch Signal Input............................................................................... 660 Failure Code [DDK4KA].................................................................................................... 662 No Input Signal to Joystick Forward/Reverse Switch................................................................... 662 Failure Code [DDK4KB].................................................................................................... 664 Multiple Joystick Forward/Reverse Switch Signals are Input........................................................... 664 Failure Code [DDK5LD].................................................................................................... 666 Hot Short in Joystick Shift_Up/Shift_Down Switch..................................................................... 666 Failure Code [DDK6KA].................................................................................................... 668 No Input Signal from Forward-Reverse Lever........................................................................... 668 Failure Code [DDK6KB].................................................................................................... 670 Multiple Forward-Reverse Lever Signal Input.......................................................................... 670 Failure Code [DDS5KA].................................................................................................... 672 Steering Pressure Switch Open........................................................................................ 672 Failure Code [DDS5KB].................................................................................................... 674 Steering Pressure Switch Grounded.................................................................................... 674 Failure Code [DDT0L4].................................................................................................... 676 Manual/Auto-Shift Selector Switch Selection Failure.................................................................. 676 Failure Code [DDT4LD].................................................................................................... 678 Ground Fault in Transmission Cut-off Switch.......................................................................... 678 Failure Code [DDW9LD].................................................................................................... 680 Short in Kickdown Switch System...................................................................................... 680 Failure Code [DDWLLD].................................................................................................... 682 Ground Fault in Hold Switch System................................................................................... 682 Failure Code [DF10KA].................................................................................................... 684 No Input Signal in Gear Shift Lever.................................................................................. 684 Failure Code [DF10KB].................................................................................................... 686 Multiple Gear Shift Lever Signals.................................................................................... 686 Failure Code [DGF1KX].................................................................................................... 688 Transmission Oil Temperature Sensor System Failure................................................................... 688 Failure Code [DGR2KA].................................................................................................... 690 Rear Brake Oil Temperature Sensor System Open........................................................................ 690 Failure Code [DGR2KB].................................................................................................... 692 Ground Fault In Rear Brake Oil Temperature Sensor System............................................................. 692 Failure Code [DHT1KX].................................................................................................... 694 Transmission Cut-off (Left Brake Pressure Sensor) Signal Open........................................................ 694 Failure Code [DLE2KA].................................................................................................... 696 Engine Speed Sensor Open............................................................................................. 696 Failure Code [DLE2LC].................................................................................................... 697 Engine Speed Sensor Shorted.......................................................................................... 697 Failure Code [DLT3KA].................................................................................................... 698 Speed Sensor System Open............................................................................................. 698 Failure Code [DT20KB].................................................................................................... 699 Ground Fault In Indicator Lamp System (Transmission Cut-off Switch).................................................. 699 Failure Code [DW7BKA].................................................................................................... 700 Fan Pump Reverse Solenoid System Open................................................................................ 700 Failure Code [DW7BKB].................................................................................................... 701 Fan Reverse Solenoid System Shorted.................................................................................. 701 Failure Code [DW7CKA].................................................................................................... 702 Switch Pump Cut-off Relay Open....................................................................................... 702 Failure Code [DW7CKB].................................................................................................... 703 Switch Pump Cut-off Relay Ground Fault............................................................................... 703 Failure Code [DX16KA].................................................................................................... 704 Fan Pump EPC Solenoid System Open.................................................................................... 704 Failure Code [DX16KB].................................................................................................... 705 Fan Pump EPC Solenoid System Ground Fault............................................................................ 705 Failure Code [DXH1KA].................................................................................................... 706 Lock-up Clutch_ECMV Solenoid System Open............................................................................. 706 Failure Code [DXH1KB].................................................................................................... 707 Lock-up Clutch ECMV Solenoid System Shorted.......................................................................... 707 Failure Code [DXH4KA].................................................................................................... 708 1st_ECMV Solenoid System Open........................................................................................ 708 Failure Code [DXH4KB].................................................................................................... 709 1st_ECMV Solenoid System Shorted..................................................................................... 709 Failure Code [DXH5KA].................................................................................................... 710 2nd_ECMV Solenoid System Open........................................................................................ 710 Failure Code [DXH5KB].................................................................................................... 711 2nd_ECMV Solenoid System Shorted..................................................................................... 711 Failure Code [DXH6KA].................................................................................................... 712 3rd_ECMV Solenoid System Open........................................................................................ 712 Failure Code [DXH6KB].................................................................................................... 713 3rd_ECMV Solenoid System Shorted..................................................................................... 713 Failure Code [DXH7KA].................................................................................................... 714 R_ECMV Solenoid System Open.......................................................................................... 714 Failure Code [DXH7KB].................................................................................................... 715 R_ECMV Solenoid System Shorted....................................................................................... 715 Failure Code [DXH8KA].................................................................................................... 716 F_ECMV Solenoid System Open.......................................................................................... 716 Failure Code [DXH8KB].................................................................................................... 717 F_ECMV Solenoid System Ground Fault.................................................................................. 717 Failure Code [DXHHKA].................................................................................................... 718 4th_ECMV Solenoid System Open........................................................................................ 718 Failure Code [DXHHKB].................................................................................................... 719 4th_ECMV Solenoid System Shorted..................................................................................... 719 Failure Code [DY30MA].................................................................................................... 720 Motor-Driven Emergency Steering Pump Failure......................................................................... 720 Failure Code [DY30MC].................................................................................................... 722 Motor-Driven Emergency Steering Pump Failure......................................................................... 722 Failure Code [TM-1]...................................................................................................... 724 Open or Short in Kickdown Switch System.............................................................................. 724 Failure Code [TM-2]...................................................................................................... 726 Hold Switch System Open Or Short..................................................................................... 726 Failure Code [TM-3]...................................................................................................... 728 Torque Converter Lock-up Switch System Failure....................................................................... 728 Failure Code [TM-4]...................................................................................................... 730 Neutral Signal System Failure........................................................................................ 730 Failure Code [TM-5]...................................................................................................... 732 Emergency Steering Switch Signal System Failure...................................................................... 732 Failure Code [TM-6]...................................................................................................... 734 Transmission Cut-off Switch System Open or Shorted................................................................... 734 Failure Code [TM-7]...................................................................................................... 736 Transmission Cut-off Setting Switch System Open or Shorted........................................................... 736 Failure Code [TM-8]...................................................................................................... 738 Transmission Cut-off (Left Brake Sensor) Signal Shorted.............................................................. 738 Failure Code [TM-9A]..................................................................................................... 740 Joystick Shift Up/shift Down Switch System Failure................................................................... 740 Failure Code [TM-9B]..................................................................................................... 742 Joystick Shift Up/shift Down Switch System Failure................................................................... 742 Failure Code [TM-10]..................................................................................................... 744 FNR Switch Mode Change Over Switch System Failure.................................................................... 744 Failure Code [TM-11]..................................................................................................... 746 Starting Switch "C" (IGN_C) Signal System Failure.................................................................... 746 Failure Code [TM-12]..................................................................................................... 750 Engine Power Mode Switch Open or Shorted............................................................................. 750 Failure Code [TM-13]..................................................................................................... 752 Open or Short in Travel Damper ON/OFF Switch......................................................................... 752 Failure Code [TM-14]..................................................................................................... 754 Open or Short in Hydraulic Fan Reverse Signal System................................................................. 754 Failure Code [TM-15]..................................................................................................... 756 Short in Motor Driven Emergency Steering Relay System................................................................ 756 Failure Code [TM-16]..................................................................................................... 757 Short in Travel Damper Relay System.................................................................................. 757 Failure Code [TM-17]..................................................................................................... 758 Switch Pump Cut-off Relay System Shorted............................................................................. 758 Failure Code [TM-18]..................................................................................................... 759 Back Lamp Relay System Shorted....................................................................................... 759 Failure Code [TM-19]..................................................................................................... 760 Neutral System Shorted............................................................................................... 760 Failure Code [TM-20]..................................................................................................... 761 F_ECMV Solenoid System Shorted....................................................................................... 761 Failure Code [TM-21]..................................................................................................... 762 R_ECMV Solenoid System Shorted....................................................................................... 762 Failure Code [TM-22]..................................................................................................... 763 1st_ECMV Solenoid System Shorted..................................................................................... 763 Failure Code [TM-23]..................................................................................................... 764 2nd_ECMV Solenoid System Shorted..................................................................................... 764 Failure Code [TM-24]..................................................................................................... 765 3rd_ECMV Solenoid System Shorted..................................................................................... 765 Failure Code [TM-25]..................................................................................................... 766 4th_ECMV Solenoid System Shorted..................................................................................... 766 Failure Code [TM-26]..................................................................................................... 767 Lock-Up ECMV Solenoid System Shorted................................................................................. 767 Failure Code [TM-27]..................................................................................................... 768 Fan Pump EPC Solenoid System Shorted................................................................................. 768 Failure Code [TM-28]..................................................................................................... 769 Fan Reverse Solenoid System Shorted.................................................................................. 769 Failure Code [TM-29]..................................................................................................... 770 Speed Sensor System Failure.......................................................................................... 770 Failure Code [TM-30]..................................................................................................... 772 E.C.S.S. Solenoid System............................................................................................. 772 WORK EQUIPMENT CONTROL SYSTEM (WRK MODE)..................................................................................... 774 Connector Types And Locations............................................................................................ 774 Connector Layout Drawing................................................................................................. 782 Work Equipment Control System Diagram.................................................................................... 788 Failure Code [D193KA].................................................................................................... 792 Defective Joystick Steering Relay System............................................................................. 792 Failure Code [D193KB].................................................................................................... 794 The Joystick Solenoid Relay Output System Shorted.................................................................... 794 Failure Code [DB90KK].................................................................................................... 796 Lowering Work Equipment Controller Power Supply Fault................................................................ 796 Failure Code [DB92KK].................................................................................................... 798 Defective Solenoid Power Supply...................................................................................... 798 Failure Code [DB95KX].................................................................................................... 800 Open in 5 V Power Supply............................................................................................. 800 Failure Code [DD1ALD].................................................................................................... 802 Defective Remote Positioner UP Set Switch............................................................................ 802 Failure Code [DD1BLD].................................................................................................... 804 Defective Remote Positioner DOWN Set Switch.......................................................................... 804 Failure Code [DFAOKM].................................................................................................... 806 Defective Neutral Caution for Joystick Work Equipment................................................................ 806 Failure Code [DK59KA].................................................................................................... 808 Defective Lift Arm EPC Lever Potentiometer System (Main Circuit Discontinuity or Ground Fault)....................... 808 Failure Code [DK59KY].................................................................................................... 810 Defective Lift Arm EPC Lever Potentiometer System (Main Short Circuit)............................................... 810 Failure Code [DK59L8].................................................................................................... 812 Defective Lift Arm EPC Potentiometer System (Displacement of Main and Sub Circuit)................................... 812 Failure Code [DK5AKA].................................................................................................... 814 Defective Lift Arm EPC Lever Potentiometer System (Disconnection of Main)............................................ 814 Failure Code [DK5AKY].................................................................................................... 816 Defective Lift Arm EPC Lever Potentiometer System (Short Sub Circuit)................................................ 816 Failure Code [DK5BKA].................................................................................................... 817 Defective Bucket EPC Lever Potentiometer System (Disconnection of Main).............................................. 817 Failure Code [DK5BKY].................................................................................................... 818 Defective Bucket EPC Lever Potentiometer System (Main Short Circuit)................................................. 818 Failure Code [DK5BL8].................................................................................................... 820 Defective Bucket EPC Potentiometer System (Displacement of Main and Sub Circuit)..................................... 820 Failure Code [DK5CKA].................................................................................................... 822 Defective Bucket EPC Lever Potentiometer System (Disconnection of Main).............................................. 822 Failure Code [DK5CKY].................................................................................................... 823 Defective Bucket EPC Lever Potentiometer System (Short Sub Circuit).................................................. 823 Failure Code [DK5DKA].................................................................................................... 824 Defective 3rd Valve Lever Potentiometer System (Main Circuit Discontinuity or Ground Fault).......................... 824 Failure Code [DK5DKY].................................................................................................... 826 Defective Lift Arm EPC Lever Potentiometer System (Main Circuit Short Circuit)....................................... 826 Failure Code [DK5DL8].................................................................................................... 828 Defective 3rd Valve EPC Potentiometer System (Displacement of Main and Sub Circuit).................................. 828 Failure Code [DK5EKA].................................................................................................... 830 Defective 3rd Valve Lever EPC Potentiometer System (Sub Circuit Discontinuity or Ground Fault)....................... 830 Failure Code [DK5EKY].................................................................................................... 831 Defective Lift Arm EPC Lever Potentiometer System (Short Sub Circuit)................................................ 831 Failure Code [DK5FKA].................................................................................................... 832 Defective Joystick Steering EPC System (Main Circuit Open or Shorted)................................................ 832 Failure Code [DK5FKY].................................................................................................... 833 Defective Joystick Steering EPC Potentiometer System (Main Circuit Shorted).......................................... 833 Failure Code [DK5FKM].................................................................................................... 834 Joystick Steering EPC Lever Neutral System Caution................................................................... 834 Failure Code [DK5FL8].................................................................................................... 836 Defective Joystick Steering EPC Lever Potentiometer Input Signal..................................................... 836 Failure Code [DK5GKA].................................................................................................... 838 Defective Joystick Steering EPC Potentiometer System (Open or Short in Sub Circuit).................................. 838 Failure Code [DK5GKY].................................................................................................... 839 Defective Joystick Steering EPC Potentiometer System (Sub Circuit Short)............................................. 839 Failure Code [DKAOKA].................................................................................................... 840 Defective Lift Arm Angle Sensor System (Open or Short)............................................................... 840 Failure Code [DKAOKY].................................................................................................... 842 Defective Lift Arm Angle Sensor (System Shorted)..................................................................... 842 Failure Code [DLE2LC].................................................................................................... 844 Defective Engine Speed Sensor System................................................................................. 844 Failure Code [DLT3LC].................................................................................................... 845 Defective Transmission Output AXIS Speed Sensor System (Open)........................................................ 845 Failure Code: [DUM1KB]................................................................................................... 846 Remote Positioner RAISE Lamp System Ground Fault..................................................................... 846 Failure Code: [DUM2KB]................................................................................................... 847 Remote Positioner LOWER Lamp System Ground Fault..................................................................... 847 Failure Code: [DW4PKA]................................................................................................... 848 Disconnected Lift Arm RAISE EPC Solenoid System...................................................................... 848 Failure Code: [DW4PKB]................................................................................................... 849 Lift Arm RAISE EPC Solenoid System Ground Fault...................................................................... 849 Failure Code: [DW4QKA]................................................................................................... 850 Disconnected Lift Arm LOWER EPC Solenoid System...................................................................... 850 Failure Code: [DW4QKB]................................................................................................... 851 Lift Arm LOWER EPC Solenoid System Ground Fault...................................................................... 851 Failure Code: [DW4RKA]................................................................................................... 852 Disconnected Bucket TILT EPC Solenoid System......................................................................... 852 Failure Code: [DW4RKB]................................................................................................... 853 Bucket TILT EPC Solenoid System Ground Fault......................................................................... 853 Failure Code: [DW4SKA]................................................................................................... 854 Disconnected Bucket DUMP EPC Solenoid System......................................................................... 854 Failure Code: [DW4SKB]................................................................................................... 855 Bucket DUMP EPC Solenoid System Ground Fault......................................................................... 855 Failure Code: [DWM1KA]................................................................................................... 856 Work Equipment Neutral Lock Solenoid System Disconnection............................................................ 856 Failure Code: [DWM1KB]................................................................................................... 857 Work Equipment Neutral Lock Solenoid System Ground Fault............................................................. 857 Failure Code: [DWN6KA]................................................................................................... 858 Lift Arm RAISE Magnet Detent System Disconnection.................................................................... 858 Failure Code: [DWN6KB]................................................................................................... 860 Lift Arm RAISE Magnet Detent System Ground Fault..................................................................... 860 Failure Code: [DWN7KA]................................................................................................... 862 Lift Arm FLOATING Magnet Detent System Disconnection................................................................. 862 Failure Code: [DWN7KB]................................................................................................... 864 Lift Arm FLOATING Magnet Detent System Ground Fault.................................................................. 864 Failure Code: [DWN8KA]................................................................................................... 866 Lift Arm TILT Magnet Detent System Disconnection..................................................................... 866 Failure Code: [DWN8KB]................................................................................................... 867 Lift Arm TILT Magnet Detent System Ground Fault...................................................................... 867 Failure Code: [DXHJKA]................................................................................................... 868 3rd Valve Extension EPC Solenoid System Disconnection................................................................ 868 Failure Code: [DXHJKB]................................................................................................... 869 3rd Valve Extension EPC Solenoid System Ground Fault................................................................. 869 Failure Code: [DXHKKA]................................................................................................... 870 3rd Valve Retraction EPC Solenoid System Disconnection............................................................... 870 Failure Code: [DXHKKB]................................................................................................... 871 3rd Valve Retraction EPC Solenoid System Ground Fault................................................................ 871 Failure Code: [DXHLKA]................................................................................................... 872 Open in Joystick Steering Right-Hand EPC Solenoid System............................................................. 872 Failure Code: [DXHLKB]................................................................................................... 874 Joystick Steering Right-Hand EPC Solenoid System Ground Fault........................................................ 874 Failure Code: [DXHMKA]................................................................................................... 876 Joystick Steering Left-Hand EPC Solenoid System Open................................................................. 876 Failure Code: [DXHMKB]................................................................................................... 878 Joystick Steering Left-Hand EPC Solenoid System Ground Fault............................................................. 878 Failure Code: [WRK-1].................................................................................................... 880 Defective Lift Arm Lock Switch System................................................................................ 880 Failure Code: [WRK-2].................................................................................................... 882 Defective Remote Positioner RAISE Setting Switch System.............................................................. 882 Failure Code: [WRK-3].................................................................................................... 884 Defective Remote Positioner LOWER Setting Switch System.............................................................. 884 Failure Code: [WRK-4].................................................................................................... 886 Defective Remote Positioner RAISE Selection Switch System............................................................ 886 Failure Code: [WRK-5].................................................................................................... 888 Defective Remote Positioner LOWER ON/OFF Switch System............................................................... 888 Failure Code: [WRK-6].................................................................................................... 890 Defective Bucket Cylinder Proximity Switch System.................................................................... 890 Failure Code: [WRK-7].................................................................................................... 892 Defective Bucket Cylinder Full Stroke Detection Switch System........................................................ 892 Failure Code: [WRK-8].................................................................................................... 894 Defective Semi-Automatic Digging HARD Selection Switch System........................................................ 894 Failure Code: [WRK-9].................................................................................................... 896 Defective Semi-Automatic Digging SOFT Selection Switch System........................................................ 896 Failure Code: [WRK-10]................................................................................................... 898 Defective Joystick ON/OFF Switch System.............................................................................. 898 Failure Code: [WRK-11]................................................................................................... 900 Defective Joystick Steering Speed HI/LO Switch System................................................................ 900 Failure Code: [WRK-12]................................................................................................... 902 Defective Joystick Solenoid Cut Relay Output System.................................................................. 902 Failure Code: [WRK-13]................................................................................................... 903 Hot Short-Circuited Lift Arm RAISE Magnet Detent Output System....................................................... 903 Failure Code: [WRK-14]................................................................................................... 904 Hot Short-Circuited Lift Arm FLOAT Magnet Detent Output System....................................................... 904 Failure Code: [WRK-15]................................................................................................... 905 Hot Short-Circuited Bucket TILT Magnet Detent Output System.......................................................... 905 Failure Code: [WRK-16]................................................................................................... 906 Hot Short-Circuited Work Equipment Neutral Lock Solenoid Output System............................................... 906 Failure Code: [WRK-17]................................................................................................... 907 Hot Short-Circuited Lift Arm RAISE EPC Solenoid System............................................................... 907 Failure Code: [WRK-18]................................................................................................... 908 Hot Short- Circuited Lift Arm LOWER EPC Solenoid System.............................................................. 908 Failure Code: [WRK-19]................................................................................................... 909 Hot Short- Circuited Bucket TILT EPC Solenoid System................................................................. 909 Failure Code: [WRK-20]................................................................................................... 910 Hot Short- Circuited Bucket DUMP EPC Solenoid System................................................................. 910 Failure Code: [WRK-21]................................................................................................... 911 Hot Short- Circuited 3 Valves Extension EPC Solenoid System.......................................................... 911 Failure Code: [WRK-22]................................................................................................... 912 Hot Short- Circuited 3 Valves Retraction EPC Solenoid System......................................................... 912 Failure Code: [WRK-23]................................................................................................... 913 Short in Joystick Steering Right EPC Solenoid System................................................................. 913 Failure Code: [WRK-24]................................................................................................... 914 Short in Joystick Steering Left EPC Solenoid System.................................................................. 914 Failure Code: [WRK-25]................................................................................................... 916 Failure Code: [WRK-26]................................................................................................... 918 Defective Boom Kick-Out Function and Cancellation.................................................................... 918 Failure Code: [WRK-27]................................................................................................... 921 Defective Bucket Leveler Function and Cancellation................................................................... 921 Failure Code: [WRK-28]................................................................................................... 924 Defective Lift Arm FLOAT Holding and Cancellation.................................................................... 924 MONITOR SYSTEM (MON MODE).................................................................................................... 926 Connector Types and Locations............................................................................................ 926 Connector Layout Drawing................................................................................................. 933 Monitor System Diagram................................................................................................... 939 Failure Code [2F00KM].................................................................................................... 943 Dragging Parking Brake............................................................................................... 943 Failure Code [2G42ZG].................................................................................................... 946 Accumulator Oil Pressure (Front Brake Circuit) Low................................................................... 946 Failure Code [2G43ZG].................................................................................................... 948 Accumulator Oil Pressure (Rear Brake Circuit) Low.................................................................... 948 Failure Code [AA1ANX].................................................................................................... 950 Air Cleaner 1 Clogged................................................................................................ 950 Failure Code [AB00L6].................................................................................................... 952 Defective Battery Charging Circuit................................................................................... 952 Failure Code [AB00MA].................................................................................................... 954 The Battery Charging Circuit is Out of Order......................................................................... 954 Failure Code [B@BAZG].................................................................................................... 956 Engine Oil Pressure Low.............................................................................................. 956 Failure Code [B@BAZK].................................................................................................... 957 Engine Oil Level Low................................................................................................. 957 Failure Code [B@BCNS].................................................................................................... 958 Engine Coolant Temperature Overheating............................................................................... 958 Failure Code [B@BCZK].................................................................................................... 960 Alarm Indicating Low Coolant Level................................................................................... 960 Failure Code [B@HANS].................................................................................................... 961 Hydraulic Oil Temperature Overheating................................................................................ 961 Failure Code [B@CENS].................................................................................................... 962 Torque Converter Oil Temperature Overheating......................................................................... 962 Failure Code [D182KZ].................................................................................................... 964 The Preheater Relay Coil is Open or Shorted.......................................................................... 964 Failure Code [D5ZHL6].................................................................................................... 966 Start Switch C (IGN "C") Input Failure............................................................................... 966 Failure Code [DA80L4].................................................................................................... 968 Auto Grease Input is Abnormal........................................................................................ 968 Failure Code [DAF3KK].................................................................................................... 970 When the SW Power Supply (for Operation) is ON, the NSW Power Supply (for Memory) is OFF............................. 970 Failure Code [DAF5KP].................................................................................................... 972 5-V Power Supply Output Failure...................................................................................... 972 Failure Code [DAF6KP].................................................................................................... 974 24-V Power Supply Output Failure..................................................................................... 974 Failure Code [DAFBKM].................................................................................................... 976 Incorrect Information on Model Selection............................................................................. 976 Failure Code [DAFSKQ].................................................................................................... 977 Incorrect Information on Meter Indication Selection.................................................................. 977 Failure Code [DAQSKR].................................................................................................... 978 S-NET Communication Failure (Between Monitor Panel and Transmission Controller)...................................... 978 Failure Code [DBQSKR].................................................................................................... 980 S-NET Communication Failure (Between Monitor Panel and Work Equipment Controller).................................... 980 Failure Code [DB9SKR].................................................................................................... 982 S-NET Communication Failure (Between Monitor Panel and Work Equipment Controller).................................... 982 Failure Code [DD15LD].................................................................................................... 984 Monitor Panel Mode Selector Switch 1 [n] (Panel SW1) Input Error..................................................... 984 Failure Code [DD16LD].................................................................................................... 986 Monitor Panel Mode Selector Switch 1 [‡] (Panel SW2) Input Error..................................................... 986 Failure Code [DD17LD].................................................................................................... 988 Monitor Panel Mode Selector Switch 2 [<] (Panel SW3) Input Error..................................................... 988 Failure Code [DD18LD].................................................................................................... 990 Monitor Panel Mode Selector Switch 2 [>] (Panel SW4) Input Error..................................................... 990 Failure Code [DD1CLD].................................................................................................... 992 Sub-Total Switch Failure............................................................................................. 992 Failure Code [DDK3KM].................................................................................................... 994 CAUTION: Right FNR Switch is in "N" (Neutral)........................................................................ 994 Failure Code [DDK4KM].................................................................................................... 995 CAUTION: Joystick FNR Switch is in "N" (Neutral)..................................................................... 995 Failure Code [DDK6KM].................................................................................................... 996 CAUTION: FNR (Forward- Reverse) Lever Switch is in "N" (Neutral)..................................................... 996 Failure Code [DDS5L6].................................................................................................... 998 Decreased Steering Oil Pressure...................................................................................... 998 Failure Code [DDY0LD]....................................................................................................1000 Cancel Switch Failure................................................................................................1000 Failure Code [DGE2KX]....................................................................................................1002 Engine Coolant Temperature (High Temperature) Sensor System Failure..................................................1002 Failure Code [DGE3L6]....................................................................................................1004 Abnormal Connection of Engine Coolant Temperature (Low Temperature) Sensor System....................................1004 Failure Code [DGH2KX]....................................................................................................1006 Hydraulic Oil Temperature Sensor System Failure......................................................................1006 Failure Code [DGT1KX]....................................................................................................1007 Torque Converter Oil Temperature Sensor System Failure...............................................................1007 Failure Code [DHE4L6]....................................................................................................1008 Engine Oil Pressure Sensor System Failure............................................................................1008 Failure Code [DHPCKX]....................................................................................................1010 Bottom Pressure Sensor Failure.......................................................................................1010 Failure Code [DHPDKX]....................................................................................................1012 Head Pressure Sensor Failure.........................................................................................1012 Failure Code [DKA0KX]....................................................................................................1014 Lift Arm Angle Sensor Failure........................................................................................1014 Failure Code [DV00KB]....................................................................................................1016 Shorted Alarm Buzzer Output System...................................................................................1016 Failure Code [DY30ME]....................................................................................................1018 The Emergency Steering Remains Actuated For More Than One Minute.....................................................1018 Troubleshooting Code [MON-1].............................................................................................1022 The Parking Brake Indicator Lamp Does Not Light Up When the Parking Brake Switch is Turned ON........................1022 Troubleshooting Code [MON-2].............................................................................................1024 Circuit Diagnostic Procedures for Error Code.........................................................................1024 Troubleshooting Code [MON-3].............................................................................................1026 The Brake Oil Pressure Caution Lamp Does Not Light Up When the Emergency Brake is Applied (Rear Circuit).............1026 Troubleshooting Code [MON-4].............................................................................................1028 The Air Cleaner Clogging Indicator Lamp Does Not Light...............................................................1028 Troubleshooting Code [MON-5].............................................................................................1030 The Engine Oil Pressure Caution Lamp Does Not Light..................................................................1030 Troubleshooting Code [MON-6].............................................................................................1031 The Engine Oil Level Caution Lamp Does Not Light.....................................................................1031 Troubleshooting Code [MON-7].............................................................................................1032 The Engine Coolant Temperature Caution Lamp Does Not Light...........................................................1032 Troubleshooting Code [MON-8].............................................................................................1033 The Coolant Level Caution Lamp Does Not Light........................................................................1033 Troubleshooting Code [MON-9].............................................................................................1034 The Hydraulic Oil Temperature Caution Lamp Does Not Light............................................................1034 Troubleshooting Code [MON-10]............................................................................................1035 The Torque Converter Oil Temperature Caution Lamp Does Not Light.....................................................1035 Troubleshooting Code [MON-11]............................................................................................1036 The Steering Hydraulic Caution Lamp Does Not Light...................................................................1036 Troubleshooting Code [MON-12]............................................................................................1038 Input Fault in Monitor Panel Mode Switch 1 [n] (Panel SW1)...........................................................1038 Troubleshooting Code [MON-13]............................................................................................1040 Input Fault in Monitor Panel Mode Switch 1 [‡] (Panel SW2)...........................................................1040 Troubleshooting Code [MON-14]............................................................................................1042 Input Fault in Monitor Panel Mode Switch 2 [<] (Panel SW3)...........................................................1042 Troubleshooting Code [MON-15]............................................................................................1044 Input Fault in Monitor Panel Mode Switch 2 [>] (Panel SW4)...........................................................1044 Troubleshooting Code [MON-16]............................................................................................1046 Defective Subtotal Switch............................................................................................1046 Troubleshooting Code [MON-17]............................................................................................1048 Defective Cancel Switch..............................................................................................1048 Troubleshooting Code [MON-18]............................................................................................1050 Defective Bottom Pressure Sensor (Short Fault).......................................................................1050 Troubleshooting Code [MON-19]............................................................................................1052 Defective Head Sensor................................................................................................1052 Troubleshooting Code [MON-20]............................................................................................1054 The Alarm Buzzer Does Not Sound or Stop..............................................................................1054 HYDRAULIC AND MECHINCAL SYSTEMS (H MODE).....................................................................................1056 H-1 - The Machine Does Not Move..........................................................................................1056 H-2 - The Lock-up Clutch is Not Released (The Engine Stops) (When the Lock-up Clutch is Provided)........................1058 H-3A - The Travel Speed is Slow, Thrusting Force is Weak, Uphill Traveling Power is Weak, and the Gear is Not Shifted....1059 H-3B - The Torque Converter Lock-up Clutch is Not Let in (When Lock-up Clutch is Provided)...............................1061 H-4 - Shocks are Large at the Times of Starting and Shifting Gear........................................................1062 H-5 - Time Lag is Large at the Times of Starting and Shifting Gear.......................................................1064 H-6 - Torque Converter Oil Temperature is High...........................................................................1066 H-7 - Steering Wheel Does Not Turn.......................................................................................1067 H-8 - Steering Does Not Turn [Machine With Joystick].....................................................................1068 H-9 - Turning, Response of Steering is Poor..............................................................................1069 H-10 - Steering is Heavy.................................................................................................1070 H-11 - Steering Wheel Shakes or Jerks....................................................................................1071 H-12 - The Brake Does Not Work...........................................................................................1072 H-13 - The Brake is Not Released or is Draging...........................................................................1073 H-14 - The Parking Brake is Not Released or Draging......................................................................1074 H-15 - The Boom Does Not Rise............................................................................................1075 H-16 - The Boom Moves Slowly or the Boom Rising Force is Insufficient....................................................1076 H-17 - When Rising, the Boom Comes to Move Slowly at Specific Height.....................................................1077 H-18 - The Boom Cylinder Cannot Hold Down the Bucket (the Bucket Rises in the Air).......................................1077 H-19 - Hydraulic Drifts of the Boom Occur Often..........................................................................1077 H-20 - The Boom Wobbles During Operation.................................................................................1078 H-21 - When the Control Lever is Switched From “Hold” to “Raise,” the Boom Falls Temporarily.............................1078 H-22 - The Bucket Does Not Tilt Back.....................................................................................1079 H-23 - The Bucket Moves Slowly or the Tilting Back Force is Insufficient.................................................1080 H-24 - The Bucket Comes to Operate Slowly in the Midst of Tilting-back...................................................1081 H-25 - The Bucket Cylinder Cannot Hold Down the Bucket...................................................................1081 H-26 - Hydraulic Drifts of the Bucket Occur Often........................................................................1081 H-27 - The Bucket Wobbles During Travel with Cargo (The Work Equipment Valve is Set to “Hold”)...........................1082 H-28 - When the Control Lever is Switched From “Hold” to “Tilt,” The Bucket Falls Temporarily............................1082 H-29 - The Control Levers of Boom and Bucket Do Not Move Smoothly and Heavy..............................................1083 H-30 - E.C.S.S. Does Not Work and There is Pitching and Bouncing.........................................................1084 ELECTRICAL SYSTEM (E MODE)...................................................................................................1085 Connector Types and Locations............................................................................................1085 Connector Layout Drawing.................................................................................................1092 Electrical System Diagram................................................................................................1098 Action Code: [E-1-a].....................................................................................................1099 The Engine Does Not Crank (Ignition System)..........................................................................1099 Action Code: [E-1-b].....................................................................................................1104 The Engine Does Not Start. (Engine Stop Solenoid System).............................................................1104 Action Code: [E-2].......................................................................................................1108 The Engine Does Not Shut Down........................................................................................1108 Action Code: [E-3].......................................................................................................1110 Preheating Inoperable or Remains ON..................................................................................1110 Action Code: [E-4].......................................................................................................1114 The Engine Power Mode Inoperable.....................................................................................1114 Action Code: [E-5].......................................................................................................1118 The Front Wiper Does Not Function....................................................................................1118 Action Code: [E-6].......................................................................................................1122 The Rear Wiper Does Not Function.....................................................................................1122 Action Code: [E-7].......................................................................................................1126 The Side Wiper Does Not Function (If Equipped).......................................................................1126 Action Code: [E-8].......................................................................................................1130 The Window Washer Does Not Function..................................................................................1130 Action Code: [E-9].......................................................................................................1134 The Headlamp (Lo Beam) Does Not Function.............................................................................1134 Action Code: [E-10]......................................................................................................1138 The Headlamp (Hi Beam) Does Not Function.............................................................................1138 Action Code: [E-11]......................................................................................................1142 Clearance Lamps Do Not Function......................................................................................1142 Action Code: [E-12]......................................................................................................1146 Turn Signal Does Not Function........................................................................................1146 Action Code: [E-13]......................................................................................................1150 Horn Does Not Sound..................................................................................................1150 Action Code: [E-14]......................................................................................................1152 Air Conditioner Does Not Work or Does Not Shut Down..................................................................1152 ENGINE SYSTEM (S-MODE).......................................................................................................1156 Method Of Using Troubleshooting Charts...................................................................................1156 (S-1) Engine Starting Performance Is Poor................................................................................1160 (S-2) Engine Does Not Crank..............................................................................................1161 Engine Cranks But No Exhaust Smoke Comes Out Of Stack................................................................1162 Smoke Comes Out Of Stack But Engine Does Not Start...................................................................1163 (S-3) Engine Does Not Run Smoothly.......................................................................................1164 (S-4) Engine Stops During Operations.....................................................................................1165 (S-5) Engine Speed Hunts.................................................................................................1166 (S-6) Engine Lacks Power.................................................................................................1167 (S-7) Exhaust Smoke Is Black.............................................................................................1169 (S-8) Oil Consumption Is Excessive Or Exhaust Smoke Is Blue..............................................................1170 (S-9) Oil Becomes Contaminated Quickly...................................................................................1171 (S-10) Fuel Consumption Is Excessive.....................................................................................1172 (S-11) Oil Found In Coolant, Or Coolant Spurts From Radiator.............................................................1173 (S-12) Oil Pressure Caution Lamp Lights Up...............................................................................1174 (S-13) Oil Level Rises (Coolant Or Fuel Found In Oil)....................................................................1175 (S-14) Coolant Temperature Too High (Overheating)........................................................................1176 (S-15) Abnormal Noise Is Heard When Engine Is Running....................................................................1177 (S-16) Excessive Vibration When Engine Is Running........................................................................1178 50 DISASSEMBLY AND ASSEMBLY......................................................................................................1179 HOW TO READ THIS MANUAL......................................................................................................1183 Removal and Installation of Assemblies...................................................................................1183 Special Tools........................................................................................................1183 Removal..............................................................................................................1183 Installation.........................................................................................................1183 Disassembly and Assembly of Assemblies...................................................................................1184 Special Tools........................................................................................................1184 Disassembly..........................................................................................................1184 Assembly.............................................................................................................1185 SPECIAL TOOLS LIST...........................................................................................................1186 Special Tool Illustrations...............................................................................................1189 CONNECTOR REPAIR PROCEDURES..................................................................................................1198 Stripping Insulation.....................................................................................................1198 Wire Inspection..........................................................................................................1198 Contact Terminal Removal (HD30 Type).....................................................................................1199 Crimping Contact Terminal (HD30 Type)....................................................................................1200 Insertion of Contact Terminal (HD30 Type)................................................................................1201 Contact Terminal Removal (DT Type).......................................................................................1202 Crimping Contact Terminal (DT Type)......................................................................................1203 Insertion of Contact Terminal (DT Type)..................................................................................1204 BULKHEAD ASSEMBLY............................................................................................................1205 Removal..................................................................................................................1205 Installation.............................................................................................................1206 ENGINE HOOD ASSEMBLY.........................................................................................................1207 Removal..................................................................................................................1207 Installation.............................................................................................................1208 ENGINE ASSEMBLY..............................................................................................................1209 Removal..................................................................................................................1209 Installation.............................................................................................................1212 ENGINE CYLINDER HEAD ASSEMBLY................................................................................................1214 Special Tool.............................................................................................................1214 Removal..................................................................................................................1214 Installation.............................................................................................................1219 RADIATOR FAN MOTOR...........................................................................................................1222 Removal..................................................................................................................1222 Installation.............................................................................................................1223 AFTERCOOLER..................................................................................................................1224 Removal..................................................................................................................1224 Installation.............................................................................................................1224 FUEL INJECTION PUMP..........................................................................................................1225 Special Tools............................................................................................................1225 Removal..................................................................................................................1225 Installation.............................................................................................................1228 NOZZLE HOLDER................................................................................................................1230 Removal..................................................................................................................1230 Installation.............................................................................................................1232 FAN AND FAN MOTOR............................................................................................................1233 Removal..................................................................................................................1233 Installation.............................................................................................................1234 FUEL TANK....................................................................................................................1235 Removal..................................................................................................................1235 Installation.............................................................................................................1237 PARKING BRAKE DISCS AND PLATES...............................................................................................1238 Special Tools............................................................................................................1238 Removal..................................................................................................................1238 Installation.............................................................................................................1240 TORQUE CONVERTER AND TRANSMISSION............................................................................................1242 Removal..................................................................................................................1242 Installation.............................................................................................................1247 Bleeding the Hydraulic Brake Circuit.....................................................................................1247 TRANSMISSION ASSEMBLY........................................................................................................1248 Special Tools............................................................................................................1248 Disassembly..............................................................................................................1248 Assembly.................................................................................................................1255 TRANSMISSION CLUTCH PACK.....................................................................................................1264 Special Tools............................................................................................................1264 Disassembly..............................................................................................................1264 Forward and Reverse Clutch Packs.....................................................................................1264 1st and 4th Clutch Pack..............................................................................................1266 2nd and 3rd Clutch Pack..............................................................................................1270 Assembly.................................................................................................................1273 Forward and Reverse Clutch Packs.....................................................................................1273 1st and 4th Clutch Pack..............................................................................................1277 2nd and 3rd Clutch Pack..............................................................................................1281 PARKING BRAKE................................................................................................................1286 Special Tools............................................................................................................1286 Disassembly..............................................................................................................1286 Assembly.................................................................................................................1289 TORQUE CONVERTER (STANDARD)..................................................................................................1295 Special Tools............................................................................................................1295 Disassembly..............................................................................................................1295 Assembly.................................................................................................................1298 TORQUE CONVERTER (LOCK-UP)...................................................................................................1301 Special Tools............................................................................................................1301 Disassembly..............................................................................................................1301 Assembly.................................................................................................................1305 REAR AXLE....................................................................................................................1309 Removal..................................................................................................................1309 Installation.............................................................................................................1311 FRONT AXLE...................................................................................................................1313 Removal..................................................................................................................1313 Installation.............................................................................................................1314 AXLE HOUSING.................................................................................................................1315 Special Tools............................................................................................................1315 Disassembly..............................................................................................................1315 Assembly.................................................................................................................1320 DIFFERENTIAL.................................................................................................................1326 Special Tools............................................................................................................1326 Disassembly..............................................................................................................1327 Assembly.................................................................................................................1335 CENTER HINGE PIN.............................................................................................................1350 Special Tools............................................................................................................1350 Removal..................................................................................................................1350 Installation.............................................................................................................1356 CAB ASSEMBLY.................................................................................................................1360 Removal..................................................................................................................1360 Installation.............................................................................................................1361 CAB AND FLOOR FRAME..........................................................................................................1362 Removal..................................................................................................................1362 Installation.............................................................................................................1365 OPERATOR'S CAB GLASS (SEALED GLASS)..........................................................................................1366 Special Tools............................................................................................................1366 Removal..................................................................................................................1366 Installation.............................................................................................................1368 HYDRAULIC PUMP ASSEMBLY......................................................................................................1376 Removal..................................................................................................................1376 Installation.............................................................................................................1376 Steering, Switching, and Fan Pump Assembly...............................................................................1377 Removal..............................................................................................................1377 Installation.........................................................................................................1377 STEERING DEMAND VALVE ASSEMBLY...............................................................................................1378 Removal..................................................................................................................1378 Installation.............................................................................................................1379 Disassembly..............................................................................................................1380 Assembly.................................................................................................................1384 ORBITROL VALVE...............................................................................................................1388 Removal..................................................................................................................1388 Installation.............................................................................................................1390 Disassembly..............................................................................................................1390 Assembly.................................................................................................................1393 ECSS VALVE...................................................................................................................1398 Removal..................................................................................................................1398 Installation.............................................................................................................1398 WORK EQUIPMENT VALVE.........................................................................................................1399 Removal..................................................................................................................1399 Installation.............................................................................................................1401 HYDRAULIC CYLINDERS..........................................................................................................1402 Steering, Lift, and Bucket...............................................................................................1402 Special Tools............................................................................................................1402 Disassembly..............................................................................................................1403 Assembly.................................................................................................................1407 HYDRAULIC TANK ASSEMBLY......................................................................................................1414 Removal..................................................................................................................1414 Installation.............................................................................................................1415 WORK EQUIPMENT...............................................................................................................1416 Removal..................................................................................................................1416 Installation.............................................................................................................1420 COUNTERWEIGHT................................................................................................................1422 Removal..................................................................................................................1422 Installation.............................................................................................................1422 AIR CONDITIONER ASSEMBLY.....................................................................................................1423 Special Tools............................................................................................................1423 Removal..................................................................................................................1423 Installation.............................................................................................................1426 AIR CONDITIONER COMPRESSOR...................................................................................................1428 Special Tools............................................................................................................1428 Removal..................................................................................................................1428 Installation.............................................................................................................1429 OPERATOR’S SEAT ASSEMBLY.....................................................................................................1430 Disassembly..............................................................................................................1430 Assembly.................................................................................................................1438 90 OTHERS........................................................................................................................1443 POWER TRAIN OIL CIRCUIT DIAGRAM..............................................................................................1444 WITHOUT TORQUE CONVERTER LOCKUP CLUTCH...................................................................................1444 WITH TORQUE CONVERTER LOCKUP CLUTCH......................................................................................1445 BRAKE OIL CIRCUIT DIAGRAM....................................................................................................1446 HYDRAULIC CIRCUIT SCHEMATIC..................................................................................................1447 ELECTRICAL SCHEMATIC.........................................................................................................1449 STANDARD.................................................................................................................1449 FLOOR HARNESS - CAB..................................................................................................1449 FLOOR HARNESS - TRANSMISSION CONTROLLER..............................................................................1451 FLOOR HARNESS - TRANSMISSION HARNESS.................................................................................1453 FLOOR HARNESS - REAR HARNESS.........................................................................................1455 FLOOR HARNESS - RELAY UNITS..........................................................................................1457 WITH JOYSTICK STEERING...................................................................................................1459 FLOOR HARNESS - CAB..................................................................................................1459 FLOOR HARNESS - TRANSMISSION CONTROLLER..............................................................................1461 FLOOR HARNESS - JOYSTICK HARNESS.....................................................................................1463 FLOOR HARNESS - TRANSMISSION HARNESS.................................................................................1465 FLOOR HARNESS - REAR HARNESS.........................................................................................1467 FLOOR HARNESS - RELAY UNITS..........................................................................................1469 ENGINE HARNESS...........................................................................................................1471 REAR HARNESS.............................................................................................................1473 FRONT FRAME HARNESS......................................................................................................1475 CAB HARNESS..............................................................................................................1477 MONITOR PANEL CONTROLLER.................................................................................................1479 A/C RELAY HARNESS........................................................................................................1481 TRANSMISSION HARNESS.....................................................................................................1483 JOYSTICK CONTROLLER HARNESS..............................................................................................1485 KOMTRAX HARNESS..........................................................................................................1487
KOMATSU WA380-5L WHEEL LOADER SHOP MANUAL CEBM009703 – PDF DOWNLOAD:
IMAGES PREVIEW OF THE MANUAL:
PLEASE NOTE:
- This is the SAME exact manual used by your dealers to fix your vehicle.
- The same can be yours in the next 2-3 mins as you will be directed to the download page immediately after paying for the manual.
- Any queries / doubts regarding your purchase, please feel free to contact [email protected]
3 reviews for Komatsu WA380-5L Wheel Loader Shop Manual CEBM009703 – PDF DOWNLOAD
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Danny Jovanni –
QUICK
Banks Arian –
Quick and easy to obtain all I need. Great helped indeed.
King Mohammed –