Power Steering: Description

Power steering gear consists of a gear housing containing a sector shaft with sector gear, a power piston with gear teeth broached into side of piston which is in constant mesh with gear shaft sector, and a worm shaft connecting the steering wheel to power piston through a U-joint type coupling. The worm shaft is geared to piston through recirculating ball contact. Steering valve, mounted on top of steering gear, directs the flow of fluid through system. Fluid is supplied to steering gear by an engine driven constant displacement pump through a pressure hose. Oil is returned to pump reservoir from steering gear through a return hose.