Subaru 1600 Service Manual page 525

2. Power Steering
1) Steering condition
Heavy steering Heavy steering
effort in all effort at stand
range
still
~
V belt
l. Loose or damage of V belt
2.
Poor uniformity of V belt
cross section
3. V belt touches to Pulley NG
bottom
4.
Poor revolution of idler
pulley
5.
Poor revolution of oil
pump pulley
1
GOOD
Tire and rim
l.
Impwp" ,""
0",
of )
specification * 1
NG
2.
Improper rims out of
specification
3. Tires not properly
inflated
l
GOOD
Fluid
l. Low fluid level NG
2. Aeration
3. Dust mix
4.
Detrioration of fluid
5.
Poor warming up of fluid *2
1
GOOD
Idling speed
*3
NG
l. Lower idling speed
2. Excessive drop of idling
speed at start with
turning steering wheel
1
GOOD
Measure hydraulic pressure,
refer to the next article 2).
!
GOOD
Measure steering effort,
refer to the following
article 3).
STEERING SYSTEM
Steering wheel Car leads to Poor return of
surges when
one side or steering wheel
turning the other to center
•
Fluid line
Reform
1.
Folded hose
NG
or
2.
Flattened pipe replace
Adjust
or GOOD
replace
Tire and rim
1. Flat tire
2. Mix use of different tires NG Fix
3. Mix use of different rims or
4.
Abnormal wear of tire replace
5.
Unbalance of remained grooves
6. Unbalance of tire pressure
Replace GOOD
or
reinflate Front alignment
1.
Improper or unbalance caster NG Adjust
2.
Improper or unbalance tow-in or
3. Loose connection of suspension
retighten
Refill,
bleed air, GOOD
replace
or Others NG
Adjust
instruct or
customer 1.
Unbalance of hight instruct
2. One-sided weight
customer
GOOD
Adjust Measure steering effort,
or
refer to the following article 3).
instruct
customer
*1 If tires and/or rims are wider, the load to power steering system is the
Accordingly, in a condition, for example before fluid warms up, relief
may work before maximum turning angle. In this case, steering effort
heavy. When measured hydraulic pressure is normal, there is no abnormal
more.
valve
may be
thing.
stance
o stop
here is
*2 In cold weather, steering effort may be heavy due to increased flow resi
of cold fluid. After warming up engine, tum steering wheel from stop t
several times to warm up fluid. Then if steering effort reduces normally, t
no abnormal thing.
*3 In cold weather or with insufficient warm up of engine, steering effort may be
heavy due to excessive drop of idling speed when turning steering wheel. In this
case, it is recommended to start the car with increasing engine speed than usual.
Then if steering effort reduces normally, there is no abnormal thing.
11-52
"'~"' ~'''''''''''''''''II-'
... ' .... - ' ....... , ...
n .. ' ...... - -_ _ ........ ,
""",,_1
t""' .....
'11-... ' .. , ________ .... .., .... ,_, ___________ - - - - - - - - - - -