Komatsu WA380-5L WA380L Wheel Loader Workshop Repair Manual, Operation Maintenance & Wiring Diagrams PDF - MKMTSWA380L.zip & MKMTSWA380LC.zip
This is a full factory-level service and repair guide featuring Electrical Wiring Diagrams for the Komatsu WA380-5L Wheel Loader, providing every technical detail needed to service, troubleshoot, fix, and overhaul the machine just like a trained professional.
Inside the Komatsu WA380-5L Wheel Loader workshop service and repair manual, you'll find:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
PRODUCT DETAILS:
Total Pages: 1,488 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
CEAM009301 - Wheel Loader GALEO WA380-5L Operation & Maintenance Manual.pdf
CEBM009703 - Wheel Loader WA380-5L Shop Manual.pdf
MAIN SECTIONS
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