Subaru LEGACY 2002 Quick Reference Index page 453

! Principle of operation
When the torsion bar is twisted by a rotational force applied to the steering wheel, the relative po-
sition between the rotor and sleeve changes. This changes the cross-sectional area of fluid pas-
sages V , V , V and V
1 2 3
in accordance with the operation of the steering wheel.
! When no steering force is applied:
The rotor and sleeve are held at the neutral position. Fluid passages V
formed by grooves C and D are open equally. Under this condition, the fluid from the pump re-
turns to the reservoir tank so that neither fluid pressure builds up nor the rack piston moves in
the power cylinder.
LHD MODEL
(1) Chamber A
(2) Chamber B
(3) V
1
RHD MODEL
POWER STEERING SYSTEM
. The fluid passages are thus switched and the fluid pressure is controlled
4
(4) V
2
(5) V
3
(6) V
4
Power Assisted System (Power Steering)
PS-13
, V and V , which are
1 2 3
(7) From fluid pump
(8) To A
(9) To B
S4H0334A