Steering Gear - Power: Description

The power rack and pinion steering system has a rotary control valve which directs hydraulic fluid to either side of rack piston. Rack piston is integral with rack gear and converts hydraulic pressure to linear force. This force assists rack gear to move either left or right.

If hydraulic assist is not available, manual control of steering is still maintained. However, without hydraulic assist, an increase in steering effort can be expected. Power rack and pinion steering gear consists of an input pinion gear, a steering rack gear, a tube housing and a rotary valve assembly.