Subaru XT 1988 Service Manual page 947

A7) BREAKAGE OF HOSES
Pressure hose burst
Forced out Return hose
Fluid bleeding out of hose
slightly
*12
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Crack on hose
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STEERING SYSTEM
Excessive holding time of
rei ief status
Malfunction of relief valve
Poor cold characteristic of
fluid
Poor connection
Poor holding of clip
Poor cold characteristic of
fluid
Wrong layout, tensioned
Excessive play of engine due
to deterioration of engine
mounting rubber
Inproper stop position of
pitching stopper
Excessive holding time of
rei ief status
Excessive tightening torque
for return hose cI ip
Power steering fluid, brake
fluid, engine oil, electrolyte
adhere on the hose surface
Too many times use in
extremely cold weather
4-3
Instruct customers
~
_ _ _ _ --I
Replace Oil pump ASSY
or Motor pump ASSY
Replace fluid
1 - - - - - - - - - 1
Correct
1 - - - - - - - - - 1
Retighten
1 - - - - - - - - - 1
Replace fluid
l
Replace hose
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i
Replace defective parts
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Replace defective parts
I
Replace
Instruct customer
Replace
Replace
Pay attention on service
work
Replace
I
I nstruct customers
*12 Although surface layer materials of rubber hoses have excellent weathering resistance, heat resistance and resistance for low
temperature brittleness, they are likely to be damaged chemically by brake fluid, battery electrolyte, engine oil and
automatic transmission fluid and their service lives are to be very shortened. It is very important to keep the hoses free
from before-mentioned fluids and to wipe out immediately when the hoses are adhered with the fluids.
Since resistances for heat or low temperature brittleness are gradually declining according to time accumulation of hot or
cold conditions for the hoses and their service lives are shortening accordingly, it is necessary to perform careful inspection
frequently when the car is used in hot weather areas, cold weather areas and/or a driving condition in which many times
steerings are required in short time. Particularly continuous work of relief valve over 5 seconds causes to reduce service
lives of the hoses, the oil pump ASSY, the fluid, etc. due to over heat.
So, avoid to keep this kind of condition when servicing as well as driving.
101