Komatsu WA470-6 2006 User Manual

Operation 3.7 Troubleshooting
WA470-6H – VEAM946100 3-175
Parking brake
Poor braking effect
! Linkage is loose
! Disc is worn
! Adjust
! (Replace disc)
Brake drags or remains applied
! Lack of oil in transmission case
! Screen is clogged
! Add oil to specified level.
See WHEN REQUIRED
! (Disassemble, clean)
Steering
Steering wheel is heavy
! Defective hydraulic system
! Lack of oil
! Add oil to specified level.
See EVERY 100 HOURS
SERVICE
There is play in steering wheel
! Steering cylinder pin is loose
! Defective hydraulic system
Lack of oil
! Grease bearing. Or replace pin
and bushing where there is play
! Add oil to specified level.
See EVERY 100 HOURS
SERVICE
Hydraulic system
Bucket lacks lifting power
Bucket takes time to go up
! Lack of oil
! Clogged hydraulic filter
! Add oil to specified level.
See EVERY 100 HOURS
SERVICE
! Replace cartridge.
See EVERY 2000 HOURS
SERVICE
Excessive bubbles in oil
! Poor quality oil
! Lack of oil
! Air entering oil line
! Replace with good quality oil
! Add oil to specified level.
See EVERY 100 HOURS
SERVICE
! Bleed air.
See EVERY 2000 HOURS
SERVICE
Lack of oil pressure
! Lack of oil causes pump to suck
in air
! See EVERY 100 HOURS SER-
VICE for details of adding oil
! See EVERY 2000 HOURS SER-
VICE for details of bleeding air
Irregular movement of cylinder
! Lack of oil
! Add oil to specified level.
See EVERY 100 HOURS
SERVICE
Problem Main causes Remedy

Komatsu WA470-6 2006 Specifications

General

Brand	Komatsu
Model	WA470-6 2006
Category	Front End Loaders
Language	English