wsm STW37 Workshop Manual page 361

STW34, STW37, STW40, WSM
Symptom
Front Wheels Wander
to Right or Left
Noise
Wheel Are Turned to
a Direction Opposite
to Steering Direction
Probable Cause and
Checking Procedure
1. Air is sucked in pump due
to leak of oil.
2. Air is sucked in pump from
suction circuit.
3. Tire pressure is uneven.
4. Air bleeding is insufficient.
5. Toe-in adjustment is
improper.
6. Clearance between front
axle center pivots and
brackets bushings is
excessive.
7. Tie-rod end is loose or
worn.
8. Steering controller is
damaged.
1. Air is sucked in pump due
to lack of oil.
2. Air is sucked in pump from
suction circuit.
3. Hydraulic pipe is
deformed.
1. Power steering hoses are
connected in reverse.
Solution
Fill transmission fluid.
Bleed air from the hydraulic system by
steering the steering wheel to the end for
two or three times.
Bleed air from the hydraulic system by
steering the steering wheel to the end for
two or three times.
Inflate tire pressure.
Bleed air from the hydraulic system by
steering the steering wheel to the end for
two or three times.
Adjust toe-in to the factory specification.
Replace front axle center pivots and
brackets bushings.
Retighten or replace tie-rod end.
Replace steering controller.
Fill transmission fluid.
Bleed air from the hydraulic system by
steering the steering wheel to the end for
two or three times.
Repair suction circuit.
Bleed air from the hydraulic system by
steering the steering wheel to the end for
two or three times.
Replace hydraulic pipe.
Reconnect steering hoses properly.
7-S2
STEERING
Reference
Page
G-8, 7-S5
7-S5
G-50
7-S5
6-S4
6-S4, 6-S7
6-S4
7-S8
G-8, 7-S5
7-S5
8-S14
7-S8
9Y1211109STS0001US0
KiSC issued 11, 2014 A