Komatsu Wheel Loader WA80M-7 WA100M-7 Shop Manual

Contents
SAFETY
Safety notice
Foreword
How to read the shop manual
Hoisting instructions
GENERAL
Dimensions, weights and operating data
Specifications
Weight tables
Lubricants and operating mediums
Basic procedures of maintenance
Torque list – Screws and nuts
STRUCTURE AND FUNCTION
Powertrain
Closed circuit
Hydraulic drive system
Variable displacement pump (HST pump)
Variable displacement motor (HST motor with HA Control)
HST motor with DA Control
Drive shaft
Front axle – Mounting
Rear axle – Mounting
Front axle
Rear axle with transfer box
Transfer box TB172
Limited slip differential
Locking differential
Wheel hub – Font axle and rear axle
Service and parking brake – Front axle
Service and parking brake circuit
Service brake assembly
Main-brake valve
Steering articulation joint
Steering system
Work equipment hydraulic
PPC-Valve WA100M-7
Main control valve
Lift cylinder
Dump cylinder
Steering cylinder
Loader Linkage with quick-coupler
Quick-coupler
Monitor display
Sensors
Pre-heater
Electrical fuses and relays
Diagrams
Air conditioner (option)
TESTING AND ADJUSTING
Standard value table for engine
Standard value table for chassis
Standard value table for electrical parts
Test certificate
Valve clearance
Engine compression test
Fuel system
V-belt tension
Engine RPM
Testing travel speed
Engine stall torque RPM
Hydraulic pressure cut-off
Working hydraulic pressure
Steering oil pressure
Operating time for steering wheel
Operating force of steering wheel
Disc brake (foot brake)
Main brake valve – basic adjustment
Brake efficiency
Parking brake efficiency
Ventilation / filling up the brake circuit
Cabin – adjustment
Proportional amplifier
DISASSEMBLY AND ASSEMBLY
Comments
Starter assembly
Alternator assembly
Counterweight assembly
Engine cover assembly
Radiator and hydraulic tank assembly
Fan assembly
Water pump assembly
Engine assembly
Clutch assembly
Fuel tank assembly
Main brake valve assembly
Priority valve assembly
Orbit-roll-valve assembly
Main control valve assembly WA80M-7
Main control valve assembly – WA100M-7
Pilot valve assembly WA100M-7
Monitor assembly
Articulated joint assembly
Variable motor assembly
Rear axle assembly
Front axle assembly
Front axle
Brake calliper
Brake group – wheel shaft
Rear axle
Epicyclic reduction gear group
Wheel hub
Wheel shaft – WA80M-7, WA100M-7
Differential support group
Differential locking group
Differential group (100% Differential Lock)
Differential group (LSD 25%)
Pinion group
Transmission box
Variable displacement pump assembly
Hydraulic pump assemblies
Variable geometry turbocharger assembly – WA80M-7, WA100M-7
Quick coupler assembly
Steering cylinder assembly
Lift cylinder assembly
Dump cylinder assembly
Replacing windows in driver’s cab
others
Hydraulic circuit diagram – WA80M-7
Hydraulic circuit diagram – WA100M-7
Wiring diagram 2/8 – WA80M-7, WA100M-7
Wiring diagram 8/8 – WA80M-7, WA100M-7
Wiring diagram 3/8 – WA80M-7, WA100M-7
Wiring diagram 4/8 – WA80M-7, WA100M-7
Wiring diagram 5/8 – WA80M-7, WA100M-7
Wiring diagram 6/8 – WA80M-7, WA100M-7
Wiring diagram 7/8 – WA80M-7, WA100M-7
Wiring diagram 1/8 – WA80M-7, WA100M-7
Shop Manual Engine
00 Index and foreword
01 Specification
10 Structure and function
20 Standard value tables
50 Disassembly and assembly
60 Maintenance standard