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Steering system - Troubleshooting
Problem
No steering or excessive
effort required to steer.
The steering wanders.
Front wheels oscillating
when steering.
Noisy pump.
8 - TROUBLESHOOTING
Possible Cause
Incorrect oil level in the tank.
Air in the system.
Pump relief valve faulty.
Worn pump.
Leaking power cylinder.
Damaged valve spool.
Broken or damaged steering column.
Damaged or worn metering element.
Excessive clearance in the ball joints of the
steering connecting rods.
Leaking power cylinder.
Control valve spool stuck or worn.
Damaged or worn metering element.
Leaking power cylinder.
Control valve spool stuck.
Damaged or worn metering element.
Incorrect oil level in the tank.
Air in the system.
Water in oil.
Worn pump.
Fill with the correct oil type and quantity.
Check for loose connections or damaged
lines. Bleed the system.
Check the system pressure.
Replace the relief valve.
Replace the pump.
Eliminate the leak.
Replace the spool.
Inspect and repair.
Replace the metering element.
Inspect and replace.
Eliminate the leak.
Replace the spool.
Replace the metering element.
Eliminate the leak.
Replace the spool.
Replace the metering element.
Fill with the correct oil type and quantity.
Check for loose connections or damaged
lines. Drain the oil from the system.
Drain and change the oil.
Replace the pump.
8-13
Correction
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Table of Contents
Troubleshooting
