Power Steering: Description

Power steering system is composed of power steering pump, steering gear and connecting hoses. Both ZF and VT49 type pumps with integral reservoirs are used. Pump may be made of a light alloy material. Alloy pumps are interchangeable with the cast iron type.

Pumps are engine driven vane-type with a control valve. Steering gear has integral piston/steering nut. Fluid pressure to each side of piston/steering nut is controlled by a control valve which is moved by a lever from steering column shaft. Steering system has a digressive action. Boost is relatively weak in the central range, and increases as steering resistance increases.