Komatsu Trash Compactor WF450-3 WF450T-3 service & repair manual

Description Komatsu Trash Compactor WF450-3 WF450T-3 service & repair manual

Komatsu Trash Compactor WF450-3, WF450T-3 pdf workshop service & repair manual

Serial number 54101 and up

MANUAL CONTENT:
GENERAL
Specifications
Weight Table

STRUCTURE AND FUNCTION
Power train
Torque converter, transmission piping
Torque converter
Transmission control valve
Transmission solenoid valve
Pilot oil filter
Drive shaft
Axle
Front axle
Rear axle
Differential
Front differential
Rear differential
Limited slip differential
Final drive
Axle mount, center hinge pin
Steering piping
Steering column
Steering valve
Orbit-roll valve
Stop valve
Brake piping
Brake valve
Charge valve
Accumulator (for brake)
Slack adjuster
Brake
Parking brake control
Parking brake
Parking brake solenoid valve
Parking brake valve
Parking brake emergency release solenoid valve
Hydraulic component layout
Work equipment lever linkage
Hydraulic tank
PPC valve
Operation of PPC valve [at neutral]
Function of PPC valve
PPC relief valve
Accumulator (for PPC valve)
Cut-off valve
Operation of cut-off valve
Main control valve
Main relief valve
Safety valve (with suction)
Suction valve
Float selector valve and unload valve
Bucket positioner and boom kick-out
Air conditioner
Air conditioner piping
Machine monitor system
Main monitor
Main monitor display function
Main monitor switch function
Preheating output function
Trouble data display mode (When optional controller are installed)
Maintenance monitor
Maintenance monitor display function
Sensors
Engine starting circuit
Engine stop circuit
Preheating circuit (Automatic preheating system)
Electric transmission control
Combination switch
Kick-down switch
Kick-down electric circuit diagram
Transmission cut of switch
Transmission cut of function
Electric parking brake control

TESTING AND ADJUSTING
Standard value table for engine
Standard value table for chassis
Standard value table for electrical parts
Tools for testing, adjusting, and troubleshooting
Testing steering wheel
Measuring play of steering wheel
Measuring operating force of steering wheel
Measuring operating time for steering wheel
Testing and adjusting steering control
Measuring steering oil pressure
Testing and adjusting accumulator charge pressure
Testing drop in wheel brake oil pressure
Measuring brake disc wear
Bleeding air from brake system
Measuring parking brake performance
Testing and adjusting work equipment hydraulic pressure
Measuring PPC hydraulic pressure
Measuring work equipment
Measuring hydraulic drift of work equipment
Adjusting main monitor (speedometer module)

TROUBLESHOOTING
Work Equipment
H-1 Blade does not rise
H-2 Blade movement is slow or blade lacks lifting power
H-3 When blade is raised, it moves slowly at a certain height
H-4 Blade cannot be pushed with lift cylinder (blade floats)
H-5 Excessive hydraulic drift of blade
H-6 Blade and straight frame shake during operation
H-7 Blade drops momentarily when control lever is operated from HOLD to RAISE
H-8 Blade does not tilt
H-9 Blade movement is slow or tilt lacks power
H-10 Blade movement becomes slow during tilt op
H-12 Excessive hydraulic drift of blade
H-13 Blade shakes during loading operation (main control valve at HOLD)
H-14 Blade tilts momentarily to left when control lever is operated from HOLD to RIGHT TILT
H-15 Blade control lever is heavy or does not move smoothly
Steering system
H-16 Steering does not turn
H-17 Steering wheel is heavy
H-18 Steering wheel wobbles or there is excessive shock
H-19 Machine steers to one side when traveling
H-20 Turning radius to left and right is different

TROUBLESHOOTING OF HYDRAULICAL AND MECHANICAL SYSTEM (H MODE)

DISASSEMBLY AND ASSEMBLY
Special tool list
Removal and installation of rear axle assembly
Removal and installation of hydraulic pump, PPC pump assembly
Disassembly and assembly of hydraulic cylinder assembly
Main control valve assembly
Fuel tank
Radiator, oil cooler assembly
Engine hood assembly
Lift cylinder assembly
Tilt cylinder assembly
Work equipment assembly
Front axle assembly
Removal and installation of rear axle assembly
Front differential assembly
Differential Assembly

MAINTENANCE STANDARD
Transmission
Forward, 1st clutch
2nd, reverse clutch
3rd, 4th clutch
Transmission control valve
Modulation valve assembly
Upper valve assembly
Lower valve assembly
Flow valve
Accumulator valve
Drive shaft
Differential
Limited slip differential
Final drive
Axle mount
Center hinge pin
Steering column
Steering valve
Steering cylinder mount
Slack adjuster
Brake valve
Left
Right
Brake
Parking brake
Torque converter, transmission pump
Steering, switch pump
Hydraulic, PPC pump
PPC valve
Cut-off valve
Main control valve
Lift cylinder
Boom cylinder
Bucket cylinder
Work equipment linkage
Bucket positioner and boom kick-out

OTHERS
Hydraulic circuit diagram
Electric circuit diagram

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