EXCESSIVE FREE PLAY AT
STEERING WHEEL
Loose steering wheel nut.
Steering column shaft worn
or damaged. There should be
very little free play in the unit
itself
Repair or replace steering
wheel connection or column.
EXCESSIVE FREE PLAY AT
STEERED WHEELS
Broken or worn linkage
between cylinder and steered
wheels
Check for loose fitting
bearings and anchor points
in steering linkage between
cylinder and steered wheels.
Leaky cylinder seals Replace cylinder seals.
BINDING OR POOR
CENTERING OF STEERING
WHEEL
Binding or misalignment in
steering column or splined
input connection
Align column pilot and spline
to steering control unit.
High back pressure in tank
line can cause slow return to
center. Should not exceed
300 psi
Check circuit return line for
blockage.
Large particles can cause
binding between the spool
and sleeve
Clean unit and filter oil. If
another component has
failed, generating
contaminents, flush system
while bypassing steering
control unit.
STEERING UNIT LOCKS UP Large particles in meter
section
Clean the unit.
Insufficient hydraulic power
(units over 15 in (CUBED))
Check hydraulic power
supply.
Severe wear and/or broken
pin
Replace the unit.
Thermal shock* Replace the unit.
STEERING WHEEL
OSCILLATES OR TURNS BY
ITSELF
Parts assembled wrong.
Steering unit improperly timed
Correct timing.
Lines connected to wrong
ports
Reconnect lines correctly.
Leaking seal in rotary
manifold
Reseal.
STEERED WHEELS TURN IN
WRONG DIRECTION WHEN
OPERATOR ACTIVATES
STEERING WHEEL
Lines connected to wrong
cylinder ports
Reconnect lines correctly.
3-way steering valve
malfunctioning
See “Operator Controls”.
Cab facing toward rear
reverses response
Be alert when operating with
cab over rear.
209REVISED:
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