Komatsu WA270-3H Operation & Maintenance Manual page 129

Wheel loader
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If faults or causes of faults are not listed below, have them rectified by
the responsible dealer.
Fault
Insufficient lifting force.
Lift action too slow.
Air bubbles in oil.
Cylinders jerking.
*) Have this work carried out by the responsible dealer.
HYDRAULIC SYSTEM
Fault cause
Oil level too low
Filter insert dirty
Poor oil quality
Oil level too low
Oil level too low
Troubleshooting
Remedy
Top up with oil according to
specifications.
Replace insert.
Top up with prescribed oil.
Top up with oil according to
specifications.
Top up with oil according to
specifications.
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