REPAIR OF STEERING SYSTEM
Section I. DESCRIPTION
to the steering cylinder. Movement of the cylinder rod
rotates a pivot arm on the axle. Two tie rods connected
The power steering system consists of the steering
to the pivot arm are attached to the wheel spindles. As
wheel, steering valve, steering cylinder, steering axle
the arm rotates, the spindles are pulled or pushed in the
and wheels. The steering axle is mounted at the rear of
direction of the turn, turning the wheels. Refer to figure
the truck. Hydraulic pressure for the system is supplied
8-1 for a view of the power steering system.
by the hydraulic pump. Rotation of the steering wheel
operates the steering valve, sending hydraulic pressure
Figure 8-1. Power steering system.