Case 580ST, Operator'S Manual

Page: 381 / 434

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