Power Steering SAGINAW Rotary Valve: Description

Saginaw Rotary Valve power steering gear operates entirely on displacing fluid to provide hydraulic fluid pressure assists only when turning. As the entire gear assembly is always full of fluid, all internal components are immersed in fluid making periodic lubrication unnecessary. Fluid acts as a cushion to absorb road shocks that may be transmitted to the driver. All fluid passages are internal except pressure and return hoses between gear and pump. Rotary valve provides a smooth transmission through driving range of steering wheel effort. A torsion bar transmits road feel to driver. Rack-piston nut is one piece and is geared to sector shaft. Lash between sector shaft and rack-piston nut is maintained by an adjusting screw which is retained in the end of the shaft gear.