Komatsu Trash Compactor WF550-3 WF550T-3 service & repair manual

Description Komatsu Trash Compactor WF550-3 WF550T-3 service & repair manual

Komatsu Trash Compactor WF550-3, WF550T-3 pdf workshop service & repair manual

Serial number 50001 and up

MANUAL CONTENT:
GENERAL
Specifications
Weight table

STRUCTURE AND FUNCTION
General
Drive unit cooling fan
Hydraulic motor
Cooling fan controller
Forward/reverse timer
Electromagnetic selector valve
Damper
Torque converter and transmission piping
Torque converter and PTO
Transmission
Transmission control valve
ECMV (Electronic Control Modulation Valve)
Main relief, torque converter relief valve
Operation of main relief valve
Operation of torque converter relief valve
Lubricating relief valve
Torque converter oil filter
Pilot filter
Transfer
Drive shaft
Center support
Axle
Front
Rear
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 emergency release
solenoid valve
Hydraulic piping
Work equipment lever linkage
Hydraulic tank
Accumulator (for PPC valve)
PPC valve
Operation of PPC valve
Function of PPC valve
PPC relief 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
Lift spool hold position
Lift spool at raise position
Lift spool at lower position
Lift spool at float position
Boom and bucket spool hold position
Boom spool at raise position
Boom spool at lower position
Boom spool at float position
Bucket spool at dump position
Bucket spool at tilt position
Bucket positioner and boom kick-out
Air conditioner
Air conditioner piping
Machine monitor system
Main monitor

TESTING AND ADJUSTING
Standard value table for engine
Standard value table for chassis
Standard value table for electrical parts
Table of required tools
Sketch of special tools
Measuring blow-by pressure
Measuring engine oil pressure
Adjusting speed sensor
Engine speed sensor
Transmission output shaft speed sensor
Adjusting of engine stop motor cable
Torque converter and transmission oil pressure
Steering oil pressure
Measuring parking brake oil pressure
Testing and adjusting PPC oil pressure
Adjusting PPC valve linkage
Work equipment hydraulic pressure
Adjusting work equipment lever linkage
Adjusting main monitor (speedometer module)
Troubleshooting
Connector types and mounting locations
Connector arrangement diagram
Troubleshooting for radiator cooling fan
System (EC Mode)
Electric circuit diagram of cooling fan system
EC-1 Fan does not rotate (selector switch position: AUTO)
Fan does not rotate (selector switch position: MANUAL)
Fan does not switch from forward to reverse rotation (selector switch position: AUTO)
Fan does not switch from forward to reverse rotation (selector switch position: MANUAL)
Fan does not switch from reverse to forward rotation (selector switch position: AUTO)
Fan does not switch from reverse to forward rotation (selector switch position: MANUAL)
When direction of fan is switched,it immediately switches
Troubleshooting of hydraulic and mechanical system (H Mode)
H-1 Blade does not move
H-2 Blade is slow or blade lacks 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 shakes during operation

TROUBLESHOOTING
Outline
Connector types and mounting locations 20-203
Connector arrangement diagram

TROUBLESHOOTING FOR RADIATOR
COOLING FAN SYSTEM (EC MODE)

TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE)

DISASSEMBLY AND ASSEMBLY
Special tool list
Sketches of special tools
Starting motor assembly
Engine front seal
Radiator assembly
Engine assembly
Front axle assembly
Front differential assembly
Rear axle assembly
Rear differential assembly
Differential gear assembly
Final drive assembly
Disassembly / assembly
Steering cylinder assembly
Steering valve assembly
Slack adjuster assembly
Hydraulic tank assembly
PPC valve assembly
Main control valve assembly
Lift cylinder assembly
Boom, bucket and lift cylinders assembly
Work equipment assembly
Engine hood assembly
Floor frame assembly
Fuel tank assembly
Air conditioner condenser assembly
Reciver tank

MAINTENANCE STANDARD
Engine mount
Transmission mount
Damper
Torque converter charging pump
Torque converter, PTO
Transmission
Transfer
Main relief, torque converter relief valve
Lubrication relief valve
Drive shaft
Center support
Differential
Final drive
Axle mount
Center hinge pin
Steering column
Steering pump
Steering valve
Steering cylinder mount
Brake valve
Slack adjuster
Brake
Parking brake
Hydraulik pump
Switch, PPC pump
PPC valve
Main control valve
Cut-off valve
Hydraulic cylinders
Work equipment linkage
Bucket positioner and boom kick-out

OTHERS
Hydraulic circuit diagram for power train
Brake circuit diagram
Electric circuit for cooling fan

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