Steering System: Description
Integral power steering unit consists of a rotary hydraulic control valve housing, input shaft/worm gear/valve sleeve assembly, sector shaft, and 1-piece piston containing 27-29 recirculating balls. The 1-piece piston's teeth are meshed to sector shaft teeth. Sector shaft is connected to Pitman arm.
Rotary hydraulic control valve assembly contains upper input shaft/valve sleeve, sleeve Teflon seals, and internal torsion bar. The input shaft/control valve sleeve is retained inside control valve housing by bearing and lock nut. Hydraulic action is generated by relative rotary motion between input shaft/control valve sleeve and worm/piston assembly. See Fig 1 and Figure .
The power steering pump used is the C-II. The C-II pump is a belt-driven, slipper-type integral pump with a fiberglass/nylon reservoir. Reservoir is attached to rear of pump housing plate. See Fig 2 .
The C-II pump high-pressure hose is attached to pump by a swivel-type fitting with "O" ring seal. This type of fitting allows for hose movement without stressing line or fitting. Pump low-pressure hose is a slip-on design with hose clamp.High-pressure hose fitting and low-pressure hose pipe are located below filler neck, at outboard side of reservoir. A pump identification tag with model number is attached to reservoir.