STEERING SYSTEM.

TM 9-2320-364-34-1

1-15. STEERING SYSTEM.

Figure 1-18. Steering System

Steering system (Figure 1-18) power is supplied to steering gears (1), (2) and (3) by an engine-driven pump. The

steering fluid reservoir (4) is separate from the main hydraulic system. The steering wheel, which is mechanically

linked to the steering gear, rotates a gear that positions a spool in the front steering gear (1). This motion is

hydraulically transmitted to a piston in the intermediate steering gear (2) causing it to follow the pitman arm and

transmit rotary motion to the rear steering gear (3). These pitman arms move the steering mechanism on the axles left

or right causing the truck to steer left or right. An emergency backup hydraulic pump, driven by the transfer case

middle shaft, supplies limited emergency steering.