Komatsu WA320-3 Wheel Loader Shop Manual VEBM450104 PDF

Description

Komatsu WA320-3 Wheel Loader Shop Manual VEBM450104 – PDF DOWNLOAD

FILE DETAILS:

Komatsu WA320-3 Wheel Loader Shop Manual VEBM450104 – PDF DOWNLOAD 

Language : English
Pages : 962
Downloadable : Yes
File Type : PDF

IMAGES PREVIEW OF THE MANUAL:

TABLE OF CONTENTS:

Komatsu WA320-3 Wheel Loader Shop Manual VEBM450104 – PDF DOWNLOAD 

Serial Number WA320H20051 and up

Contents 2
01 General 9
Dimensions and weights 11
Specification 12
Weight table 15
General view of controls and gauges 16
Dimensions and weights 17
Specification 18
List of lubricant and water 21
Ountlines of service 23
General view of controls and gauges 26
Torque list 28
10 Structure and function 29
Power train 31
Power train system 32
Toque converter, transmission piping 34
Transmission hydrqulic system diagram 35
Torque converter 37
Torque cnverter oil filter 39
Transmission 41
Clutch 43
Transmission control valve 53
Transmission solenoid valve 56
Pilot reducing valve 57
Main relief valve 58
Torque converter outlet port valve 59
Priority valve 60
Quick return valve 61
Directional selector valve 65
H-L selector valve and range selector valve 66
Emergency manual spool 68
Modulation valve 69
Pilot oil filter 72
Accumulation valve 73
Drive shaft 75
Axle 76
Differential 78
Final drive 83
Axle mount, center hinge pin 84
Steering piping 87
Steering column, orbit roll 88
Priority valve 89
Steering valve (orbit roll) 93
Cushion valve 101
2-way restrictor valve 102
Emergency steering 103
Brake piping 113
Brake hydraulic circuit diagram 114
Brake valve 115
Accumulation charge valve 120
Accumulation (for brake) 124
Brake pressure regulation valve 134
Accumutator for PPC valve 136
Brake accumulator unit 137
Brake 139
Parking brake control 141
Parking brake 142
Parking brake valve 143
Hydraulic piping 145
Work equipment hydraulic circuit diagram 146
Work equipment lever linkage 156
Hydraulic tank 157
Oil filter bypass valve 158
PPC valve 159
Operation of PPC relief valve 164
Accumulator (for PPC valve) 168
Main control valve up to H20343 169
Relief valve up to H20343 173
Safety valve with suction up to H20343 174
Suction valve up to H20343 175
Main control valve from H20344 up to H20710 176
Safety valve with suction: H20344 and up 178
Anticavitation valve: H20344 and up 179
Main control valve:H20711 and up 180
Operation of cut-off valve up to H20343 182
Work equipment valve operation 184
Hydraulic safety system up to H20710 190
Work equipment linkage 193
Bucket 195
Bucket positioner and boom kick-out 196
Machine monitor system 203
Main monitor 204
Maintenance monitor 208
Transmission auto-shift control function 210
Transmission controler 215
E C S S (ALS-electronic) 217
Sensors 227
Engine starting circuit 232
Etherstart (option) 233
Engine start/stop/preheating circuit 234
Ribbon heater: H20561 and up 236
Electric transmission control 237
Kick-down/hold switch 240
Kick-down electric circuit diagram (normal) 241
Transmission cut-off switch 246
Transmission cut-off function 247
Electric parking brake control 251
Air-conditioner 253
Wiring diagrams 307
20 Testing and adjusting 355
Standard value table for engine 356
Standard value table for chassis 358
Standard value table for electrical system 362
Test certificate WA320-3 373
Tools for testing and adjusting 377
Measuring compression pressure 383
Measuring blow-by pressure 385
Testing and adjusting fuel injection timing 387
Measuring exhaust color 389
Measuring intake air pressure (boost pressure) 390
Measuring engine oil pressure 391
Testing the fan belt tension 392
Measuring acceerator pedal 393
Basic adjustment of accelerator pedal 395
Measuring operating force, travel of speed lever 397
Measuring stall speed 398
Measuring torque converter, transmission, parking brake pressure 400
Method of operating emergency manuel spool 402
Measuring clearance between tire and wheel 404
Testing and adjusting steering wheel 405
Measuring steering oil pressure 407
Measuring operating force, travel of brake pedal 409
Measuring brake performance 410
Testing brake oil pressure 411
Testing for brake disc wear 412
Bleeding air from brake system 413
Measuring parking brake performance 414
Manual release note for parking brake 415
Testing wear of parking brake disc 416
Measuring work equipment control lever 417
Measuring work equipment hydraulic pressure 419
Measuring PPC valve pressure 421
Measuring work equipment 425
Testing and adjusting bucket positioner 427
Testing and adjusting boom kick-out 428
Adjusting main monitor (speedometer module) 430
Gas side test and topping up gas pressure 431
Hydraulic accumulator 433
30 Disassembly and assembly 649
Method of using manual 651
Precautions when carrying out operation 652
Special tool list 654
Sketches of special tools 656
SDtarting motor 658
Alternator 659
Engine oil cooler 660
Fuel injection pump 663
Water pump 669
Turbocharger 670
Thermostat 674
Cylinder head 678
Radiator 696
Engine 702
Torque converter charging pump 707
Torque converter, transmission 708
Torque converter 724
Transmission 728
Transmission clutch pack 752
Transmission control valve 770
Transmission accumulator valve 779
Transmission modulating valve 781
Drife shaft 783
Front axle 787
Rear axle 790
Differential 795
Axle housing 810
Center hinge pin 825
Priority valve 834
Steering valve 836
Steering cylinder 846
Right brake valve (tandem) 848
Left brake valve (single) 850
Parking brake disc 852
Hydraulic tank 855
Hydraulic filter 857
Hydraulic, steerring pump 858
Main control valve 865
PPC valve 873
Bucket cylinder 877
Boom cylinder 879
Hydraulic cylinder 881
Work equipment 887
Counterweight 892
Fuel tank 893
Cab 896
Main monitor 898
Maintenance monitor 900
Air conditioner unit 901
Air conditrioner condenser 907
Dry receiver 909
Air conditioner compressor 910
40 Maintenance standard 913
Engine mount, transmission mount 914
Torque converter charging pump 915
Torque converter 916
Transmission 917
Transmission control valve 926
Modulation valve assembly 930
Accumulation valve 931
Drive shaft 932
Differential 933
Final drive 936
Axle mount 938
Center hinge pin 940
Steering column 942
Priority valve 943
Steering cylinder mount 944
Brake 945
Brake valve 947
Parking brake 950
Hydraulic pump 951
Main control valve 952
PPC valve 956
Hydraulic cylinder 957
Work equipment linkage 958
Bucket 960
Bucket positioner and boom kick-out 961

DESCRIPTION:

Komatsu WA320-3 Wheel Loader Shop Manual VEBM450104 – PDF DOWNLOAD 

Serial Number WA320H20051 and up

FOREWORD:
GENERAL:

• This shop manual has been prepared as an aid to improve the quality of repairs by giving the service personnel
  an accurate understanding of the product and by showing them 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 chapters; these chapters are
  further divided into the each main group of components.

STRUCTURE AND FUNCTION
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.
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 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.
MAINTENANCE STANDARD
This section gives the judgement standards when inspecting disassembled parts.
The specifications contained in this shop manual are subject to change at any time and
without any advance notice. Use the specifications given in the book with the latest
date.

S.V 24/12/24