Komatsu D475A-5E0 Operation & Maintenance Manual page 240

OPERATION
Problem
Abnormal wear of sprocket
Blade lifting speed is slow or
does not rise (or blade tilting
speed is slow)
Ripper movement is slow
Ripper lacks power
Main causes
Track shoe assembly too loose or
too tight
Lack of hydraulic oil
Defective hydraulic switch
Work equipment lock lever is at
LOCK position
Lack of hydraulic oil
Defective solenoid valve
Work equipment lock lever is at
LOCK position
Leakage of oil from piping
TROUBLESHOOTING
Remedy
Adjust track tension. See WHEN
REQUIRED
Add oil to specified level. See
Checks before starting
Replace
Set lock lever to FREE position
Add oil to specified level. See
Checks before starting
Replace
Set lock lever to FREE position
( Tighten piping)
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