Chrysler laser 1990 Technical Information Manual page 215

POWER STEERING - Pinion and Valve Assembly Construction
PINION AND VALVE ASSEMBLY
CONSTRUCTION
The pinion and valve assembly is composed of the
input shaft, torsion bar, pinion gear and rotary valve.
The input shaft is hollow and incorporates the
torsion bar within it; the upper end is secured by
a pin to the torsion bar, and the lower end is held
by the bushing within the pinion gear.
The torsion bar is coupled to the pinion
the serrated part at the lower end.
In order to prevent excessive torsion of the
Torsion
bar
torsion bar, the pinion gear is provided with a
the steering wheel directly to the pinion gear by
the input shaft in the event of a malfunction of
the hydraulic system (such as breakage of the oil
pump's V-belt, fluid leakage, etc.).
gear by
The rotary valve is attached to the pinion gear by
l
a dowel pin.
Pm
Input
Dowel
Rotary valve
Section A-A
shaft
pin'
Torsion bar
Stopper
Pinion gear