Steering System - Integral Power: Description
Integral power steering unit consists of a worm and 1-piece rack piston, meshed to sector shaft teeth. System includes a rotary hydraulic valve, input shaft, control valve sleeve and torsion bar. Hydraulic action is generated by relative rotary motion between input shaft and worm/sleeve assembly. See Fig 1 .
The C-II power steering pump is used on Bronco, Explorer, Ranger, F150-350 and "F" series super duty vehicles. Pump is a belt-driven, slipper-type integral pump with a fiberglass/nylon reservoir. Reservoir is attached to rear of pump housing plate. Pump body is encased within housing and reservoir.
Hoses are attached with quick disconnect fittings, located below filler neck at outboard side of reservoir. An identification tag with basic model number is attached to reservoir. See Fig 2 .
The Saginaw power steering pump is used on E150-350 vehicles. Pump is a vane-type pump. The reservoir is sealed against the pump housing, all parts are integral and submerged in oil. The filler neck is on the reservoir.
Rectangular pumping vanes driven by a shaft, move fluid from intake to pressure cavities of cam ring. Oil is picked up and forced into cavities of thrust plate, to holes in cam ring and pressure plate. The flow control valve, regulates supplied oil to the steering gear unit. See Figure .