Subaru 2002 Impreza Service Manual page 356

POWER STEERING SYSTEM
Power Assisted System (Power Steering)
C: FLUID PUMP AND RESERVOIR TANK
The fluid pump is a vane type driven by the engine via belt.
The reservoir tank is mounted on the vehicle body.
The fluid pump incorporates the flow control valve and relief valve, each performing the following
functions:
0
The flow control valve regulates the flow rate of discharged fluid to a constant level irrespective
of the engine speed.
0
The relief valve protects the system from an excessively high pressure which may occur, for ex-
ample, when the steering wheel is turned all the way.
1. NON-TURBO MODEL
(1) Fluid pump
(2)
Reservoir tank
NF0292
PS-12