Komatsu PC15MRX-1 Operation And Maintenance Manual page 138

TROUBLESHOOTING
CHASSIS
( ): Always contact your Komatsu distributor when dealing with these items.
In cases of abnormalities or causes which are not listed below, please contact your Komatsu distributor for
repairs.
Problem
Speed of travel, swing, boom, arm,
bucket is slow
Pump generates abnormal noise
Excessive rise in hydraulic oil tem-
perature
Track comes off
Abnormal wear of sprocket
3-84
Main causes
Lack of hydraulic oil
Clogged element in hydraulic
tank strainer
Loose fan belt
Dirty oil cooler
Lack of hydraulic oil
Track too loose
OPERATION
Remedy
Add oil to specified level, see
CHECK BEFORE STARTING
Clean, see EVERY 2000
HOURS SERVICE
Adjust fan belt tension, EVERY
1000 HOURS SERVICE
Clean, see EVERY 500 HOURS
SERVICE
Add oil to specified level, see
CHECK BEFORE STARTING
Adjust track tension, see WHEN
REQUIRED