Komatsu WA65-5 WA70-5 WA80-5 Wheel Loader Shop Manual VEBM250100 PDF

Description

Komatsu WA65-5 WA70-5 WA80-5 Wheel Loader Shop Manual VEBM250100 – PDF DOWNLOAD

FILE DETAILS:

Komatsu WA65-5 WA70-5 WA80-5 Wheel Loader Shop Manual VEBM250100 – PDF DOWNLOAD

Language : English
Pages :306
Downloadable : Yes
File Type : PDF

DESCRIPTION:

Komatsu WA65-5 WA70-5 WA80-5 Wheel Loader Shop Manual VEBM250100 – PDF DOWNLOAD

MODEL:              SERIAL NUMBER:
WA65-5                H50051 AND UP
WA70-5                H50051 AND UP
WA80-5                H50051 AND UP

General Precautions

Mistakes in operation are extremely dangerous. Read the OPERATION AND MAINTENANCE MANUAL carefully before operating the machine! Always follow the safety rules valid in your country carefully!

TABLE OF CONTENTS:

Komatsu WA65-5 WA70-5 WA80-5 Wheel Loader Shop Manual VEBM250100 – PDF DOWNLOAD

MODEL:              SERIAL NUMBER:
WA65-5                H50051 AND UP
WA70-5                H50051 AND UP
WA80-5                H50051 AND UP

VEBM250100_WA65-5_WA80-5_Shop_Manual 1
SAFETY 3
Safety notice 5
Preparations for work 6
Tipping up the driver’s cab 6
Tipping down the driver’s cab 9
Precautions during work 10
Foreword 13
How to read the shop manual 14
Volumes 14
Distribution and updating 14
Filing method 14
Symbols 15
Hoisting instructions 16
Wire ropes 16
GENERAL 19
Dimensions, weights and operating data WA65-5 21
Specifications WA65-5 22
Weight table WA65-5 23
Dimensions, weights and operating data WA70-5 24
Specifications WA70-5 25
Weight table WA70-5 26
Dimensions, weights and operating data WA80-5 27
Specifications WA80-5 28
Weight table WA80-5 29
Lubricants and operating mediums: WA65-5/ WA70-5 30
Lubricants and operating mediums: WA80-5 31
Basic procedures of maintenance 32
Oil 32
Fuel 32
Coolant 33
Grease 33
Storing oil and fuel 33
Filters 34
Biodegradable hydraulic oils and lubricants 34
Outline of electric system 34
Torque list – screws and nuts 35
STRUCTURE AND FUNCTION 37
Powertrain 39
Closed circuit 40
Hydraulic drive system 20Km/h 41
Hydraulic drive system 30Km/h 42
Variable displacement pump 43
Regulating valve 46
Charge pressure limiting valve 46
Control cylinder 47
4/3 Way valve with direction control solenoids 47
Pressure cut-off valve 48
Safety-/charge valve 48
Towing 49
Variable displacement motor 50
Drive shaft 52
Axle mounting – front axle 53
Axle mounting – rear axle 53
WA65-5 / WA70-5: Front axle 54
With outer disc brake as service brake and parking brake 54
WA80-5: Front axle 55
With inner disc brake as service brake and outer disc brake as parking brake 55
Rear axle with transfer box 56
Transfer box TB172 57
Limited slip differential (locking value 25%) 58
Locking differential (locking value 100%) 60
Wheel hub, front and rear axle 62
WA65-5 / WA70-5: Service and parking brake, front axle 63
WA80-5: Service brake, front axle 65
WA80-5: Parking brake, front axle 66
Sevice and parking brake circuit 67
WA65-5 / WA70-5: Service brake assembly 68
WA80-5: Service brake assembly 69
Inch-brake Valve 70
Steering articulation joint 71
Steering system 72
Hydraulic circuit diagram of steering system 72
Priority valve 73
Orbit-roll-valve 74
Steering relief valve 75
Work equipment hydraulic WA65/WA70-5 76
Travel, steering and work hydraulics 76
Work equipment hydraulic WA80-5 78
Travel, steering and work hydraulics 78
PPC-Valve 80
Operation of PPC-valve 81
Servo pressure regulating valve 82
Emergency Lowering System 82
Main control valve 84
WA65-5 / WA70-5: Lift cylinder 86
WA80-5: Lift cylinder 87
Dump cylinder 88
Steering cylinder 89
Lifting frame with quick-coupler 90
Quick-coupler 91
Monitor display 92
Sensors 93
Engine oil pressure sensor 93
Fuel level sensor 94
Engine coolant temperature sensor 95
Brake oil reservoir sensor 96
Ribbon heater 97
Engine stop / start / preheating circuit 98
Electrical fuses and relays100
Fuses100
Relays101
Engine room102
Electrical diagrams103
Wiring diagram 1/5 – foldout 90-9103
Wiring diagram 2/5 – foldout 90-11103
Wiring diagram 3/5 – foldout 90-13103
Wiring diagram 4/5 – foldout 90-15103
Wiring diagram 5/5 – foldout 90-17103
Speed control – foldout 90-19103
Immobilizer – foldout 90-21103
Air conditioner (option)104
Introduction104
Function105
The coolant circuit105
The condenser107
The vaporizer108
The filter dryer109
Installation of air conditioner111
Safety when handling coolants112
Operating the air conditioner114
Maintenance of the air conditioner115
Regular maintenance116
Instructions for filling118
Exchange of magnetic clutch121
Exchange of compressor122
Troubleshooting124
TESTING AND ADJUSTING129
Standard value table for engine – WA65-5 / WA70-5 / WA80-5131
Standard value table for chassis – WA65-5132
Standard value table for chassis – WA70-5134
Standard value table for chassis – WA80-5136
Standard value table for electrical parts138
Test certificate – WA65-5139
Test certificate – WA70-5140
Test certificate – WA80-5141
Valve lash clearance142
Engine compression test144
Injection nozzle pressure145
Fuel injection timing146
V-belt tension148
Engine RPM149
RPM-dependant drive take-up150
Engine stall torque RPM151
Engine stall torque RPM, test with the hydrostatic drive151
Engine stall torque RPM, test with hydrostatic drive and working hydraulics152
Feed pump (and servo oil pressure for WA80-5)153
Hydraulic pressure cut-off154
Working hydraulic pressure156
Steering oil pressure157
Testing157
Adjusting158
Operating time for steering wheel159
Operating force of steering wheel159
Disc brake (foot brake WA80-5)160
Brake (WA65-5 and WA70-5)160
Inch valve – basic adjustment161
WA 65-5 and WA70-5161
WA 80-5161
Brake efficiency162
Measuring the stopping distance162
Parking brake efficiency163
Travel speed164
DISASSEMBLY AND ASSEMBLY165
Comments167
Starter assembly168
Removal of starter assembly168
Installation of starter assembly169
Alternator assembly170
Removal of alternator assembly170
Installation of alternator assembly171
Water pump assembly172
Removal of water pump assembly172
Installation of water pump assembly174
Engine cover assembly175
Removal of engine cover assembly175
Installation of engine cover assembly176
Engine cover support assembly177
Removal of engine cover support assembly177
Installation of engine cover support assembly178
Engine assembly179
Removal of engine assembly179
Installation of engine assembly184
Clutch assembly186
Removal of clutch assembly186
Installation of clutch assembly187
Radiator assembly188
Removal of radiator assembly188
Installation of radiator assembly190
Fan assembly191
Removal of fan assembly191
Installation of fan assembly192
Inch brake valve assembly193
Removal of inch brake valve assembly193
Installation of inch brake valve assembly194
Priority valve assembly195
Removal of priority valve assembly195
Installation of priority valve assembly196
Orbit-roll-valve assembly197
Removal of orbit-roll-valve assembly197
Installation of orbit-roll-valve assembly199
Counterweight assembly200
Removal of counterweight assembly200
Installation of counterweight assembly201
Control valve assembly (WA65-5 / WA70-5)202
Removal of control valve assembly202
Installation of control valve assembly204
Main control valve assembly (WA80-5)205
Removal of main control valve assembly205
Installation of main control valve assembly206
Pilot valve assembly (WA80-5)207
Removal of pilot valve assembly207
Installation of pilot valve assembly208
Monitor assembly209
Removal of monitor assembly209
Installation of monitor assembly210
Articulated joint assembly211
Removal of articulated joint assembly211
Installation of articulated joint assembly212
Variable motor assembly213
Removal of variable motor assembly213
Installation of variable motor assembly215
Rear axle assembly216
Removal of rear axle assembly216
Installation of rear axle assembly218
Front axle assembly219
Removal of front axle assembly219
Installation of front axle assembly221
Front axle222
Brake disc group222
Disassembly222
Assembly224
Brake caliper226
Hydraulic principle of operation226
Differential position227
Mechanical principle of operation227
Caliper removal227
Disassembly (calliper removed)228
Disassembly228
Assembly230
Caliper reassembly232
Replacement of guide protective covers232
Pad replacement233
Brake group – wheel shaft234
Disassembly234
Assembly237
Rear axle240
Trunnions group and flange240
Disassembly240
Assembly241
Epicyclic reduction gear group243
Disassembly243
Assembly244
Wheel hub245
Disassembly245
Assembly247
Wheel shaft249
Disassembly249
Assembly250
Differential support group251
Disassembly251
Assembly252
Bevel gear marking test255
Differential locking group256
Disassembly256
Assembly257
Differential group (WA80-5)258
Disassembly258
Assembly259
Differential group (WA65-5 / WA70-5)260
Disassembly260
Assembly261
Pinion group262
Disassembly262
Assembly263
Variable displacement pump assembly266
Removal of variable displacement pump assembly266
Installation of variable displacement pump assembly268
Hydraulic pump assemblies269
Removal of the two hydraulic pump assemblies269
Installation of hydraulic pump assembly270
Quick-attach coupler assembly271
Removal of quick-attach coupler assembly271
Installation of quick-attach coupler assembly272
Steering cylinder assembly273
Removal of steering cylinder assembly273
Installation of steering cylinder assembly274
Lift cylinder assembly275
Removal of lift cylinder assembly275
Installation of lift cylinder assembly276
Dump cylinder assembly277
Removal of dump cylinder assembly277
Installation of dump cylinder assembly278
Replacing windows in driver’s cab279
Stuck glass279
Installation281
Door and side windows282
Door window assembly282
Side window assembly282
OTHERS283
Wiring diagram1/5293
Wiring diagram 2/5295
Wiring diagram 3/5297
Wiring diagram 4/5299
Wiring diagram 5/5301
Wiring diagram, Speed control303
Wiring diagram, Immobilizer305
Hydraulic circuit diagram 1/4285
Hydraulic circuit diagram 2/4287
Hydraulic circuit diagram 3/4289
Hydraulic circuit diagram 4/4291

IMAGES PREVIEW OF THE MANUAL:

S.M 22/12/24