Subaru XT 1988 Service Manual page 930

4-3
Power Steering
A1) STEERING CONDITION
( 1) Except XT6
Heavy steering
Heavy steering
effort in all
effort at stand
ranges
still
I
T
•
Pulley belt
1 . Unequal length of pulley belts
2. Adhesion of oil and grease
3. Loose or damage of pulley
belt
NG
4.
Poor uniformity of pulley belt
cross section.
5.
Pulley belt touches to Pulley
bottom
6. Poor revolution of pulleys
except oil pump pulley
7. Poor revolution of oil pump
pulley
~
GOOD
Tire and rim
1.
Imp'op" t;,,, out
Of)
NG
specification
2.
*1
Improper rims out of
specification
3. Tires not properly inflated
I
GOOD
Fluid
1. Low fluid level
NG
2. Aeration
3. Dust mix
4.
Deterioration of fluid
5. Poor warming up of fluid *2
l
GOOD
Idling speed
1. Lower idling speed
NG
2. Excessive drop of idling speed
at start or at turning steering
wheel *3
1
GOOD
Measure hydraulic pressure.
I
GOOD
Measure steering effort.
I
*1
*2
*3
STEERING SYSTEM
Steering wheel
Vehicle leads to Poor return of
surges when one side or the
steering wheel
turning
other to center
I I
r r
•
Fluid line
NG
Reform orl
1. Folded hose
replace
2. Flattened pipe
I
GOOD
Adjust or
replace
Tire and rim
1. Flat tire
2. Mix use of different tires
NG
3. Mix use of different rims
Fix or
4.
Abnormal wear of tire
replace
5. Unbalance of remained grooves
6. Unbalance of tire pressure
I
GOOD
Front alignment
Replace or
NG
Adjust or
1
reinflate
1. Improper or unbalance caster
retighten
2. Improper or unbalance toe-in
3. Loose connection of suspension
i
GOOD
Others
Replace,
Refill,
NG
1. Damaged joint ASSY
Adjust or
bleed air,
2.
Unbalance of height
instruct
replace or
3. One-sided weight
customer
instruct
customer
~
GOOD
Measure steering effort.
Adjust or
instruct
customer
If tires andlor rims are wider, the load to power steering system is the m ore.
may
avy.
Accordingly, in a condition, for example before fluid warms up, relief valve
work before maximum turning angle. In this case, steering effort may be he
When measured hydraulic pressure is normal, there is no abnormal thing.
In cold weather, steering effort may be heavy due to increased flow resist
of cold fluid. After warming up engine, turn steering wheel from stop to
ance
stop
re is
several times to warm up fluid. Then if steering effort reduces normally, the
no abnormal thing.
In cold weather or with insufficient warm u of en ine steerin effort ma
p g g y
be
heavy due to excessive drop of idling speed when turning steering wheel. In this
case, it is recommended to start the vehicle with increasing engine speed than
usual. Then if steering effort reduces normally, there is no abnormal thing.
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