Subaru 2002 Impreza Service Manual page 351

POWER STEERING SYSTEM
Power Assisted System (Power Steering)
B: GEARBOX ASSEMBLY
1. POWER CYLINDER
The gearbox integrates the control valve and power cylinder into a single unit. The rack shaft
serves as a power cylinder piston. The rotary control valve is located around the pinion shaft.
The rotary control valve and power cylinder are connected to each other by two pipes through
which hydraulic fluid flows.
(1) Piston
(2) Rackshaft
(3) Cylinder
NF0284
(4) Power cylinder
(5) Pinion shaft
(6) Control valve
PS-7