Steering: Description and Operation
STEERING SYSTEMDESCRIPTION
The Power Steering Pump is a constant flow rate and displacement vane type pump. The Pump Reservoir is attached to the pump body. The pump is connected to the steering by the pressure and return hoses. The Steering Gear used is a recirculating ball type gear. A column provides steering input.
The Power Steering System consists of the following components:
^ Steering Gear
^ Power Steering Pump
^ Reservoir
^ Pressure Hose
^ Return Hose
OPERATION
The Steering Gear rack piston balls act as a rolling thread between the worm shaft and rack piston. The worm shaft is supported by a thrust bearing at the lower end and a bearing assembly at the upper end. When the worm shaft is turned from the Steering Column the rack piston moves. The rack piston teeth mesh with the pitman shaft. Turning the worm shaft turns the pitman shaft, which moves the steering linkage.