This 1955 US Army training film handily explains the principles of operation used in a hydraulically-assisted cam and lever steering system. The basic steering assembly is described first.

This 1955 US Army training film handily explains the principles of operation used in a hydraulically-assisted cam and lever steering system. The basic steering assembly is described first.

Basic Maintenance Bill Litosky, the service manager at Bergey’s Mack and Volvo of Franconia, Pa., provided detailed information about how to maintain and troubleshoot the power-steering system.

In a basic steering system, the driver turns the steering wheel and these inputs are transferred, via a series of shafts, down to the steering gear at the front of the car.