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Backlash
Cause 1: Wear or play between the steering column
and the cardan shaft.
Solution 1: If the wear is in the steering column,
replace the steering column (steering shaft per Cub
Cadet IPL). If the wear is in the cardan shaft, this is an
internal problem.
Cause 2: Bad leaf spring in steering unit.
Solution 2: Internal problem; leaf spring.
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Shimmy:
Cause 1: Air in steering system.
Solution 1: Repair any leaks in the hydraulic system.
Be aware that a leak on the suction side of the auxiliary
pump would entrain air into the hydraulic fluid, but may
not display significant fluid loss.
Cause 2: Worn mechanical connections.
Solution 2: Inspect the MFD and steering linkage for
sources of excessive play: worn wheel bearings, worn
tie rod ends, worn king pins, worn steering cylinder
mounting points, etc.... Replace the worn components.
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Steering Wheel Input Does Not Cause Steer-
ing cylinder to Move:
Cause 1: No fluid in the system.
Solution 1: Fill the system.
Cause 2: Worn steering cylinder / blow-by. Confirm
with flow test in line to cylinder.
Solution 2: Replace the steering cylinder.
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Heavy Impacts to Steering Wheel in Both
Directions:
Cause 1: The hydraulic hoses are incorrectly con-
nected; the hose that should connect to the "P" port is
connected to the "L" port or the "R" port.
Solution 1: Correct the hydraulic connections.
Cause 2: Incorrect setting of the cardan shaft to the
gear wheel (timing).
Solution 2: Internal problem; cardan shaft / gear wheel
timing.
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•
Cause 1: Insufficient fluid flow to the steering unit.
Confirm by testing the out-put of the auxiliary pump.
Solution 1: Repair of replace the auxiliary pump or
delivery line from the pump to the "P" port on the steer-
ing unit.
Cause 2: The priority valve in the steering unit is not
working properly. This valve normally maintains prece-
dence of the steering system over all subsidiary sys-
tems (lift cylinder).
Solution 2: Internal problem; priority valve.
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Cause 1: There is a mechanical bind in the steering
column.
Solution 1: Repair or adjust the steering column
(steering shaft) to eliminate the bind.
Cause 2: Bad leaf springs.
Solution 2: Internal problem; leaf springs.
Cause 3: The spool is pressing against the sleeve in
the steering unit.
Solution 3: Internal problem; relief valve causing too
much pressure to build, displacing the spool.
Cause 4: Binding between spool and sleeve caused by
fluid contamination.
Solution 4: Internal problem; contamination. If this is
a possibility, cleaning, fluid replacement, and filter
replacement will help prevent a repeat failure.
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Cause 1: The "L" and "R" hoses are reversed at their
connections to the steering cylinder or steering unit.
Solution 1: Correct the connections of the hydraulic
lines from the steering unit to the steering cylinder.
Cause 2: Incorrect setting of cardan shaft to gear
wheel.
Solution 2: Internal problem; cardan shaft / gear wheel
timing.
15
Domestic Series 5000 Hydraulics
Slow Steering:
The Steering Wheel Does Not Return to Cen-
ter:
Steering Action is Opposite of Input:
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