Hydraulic Pump and Motor

TM 10-3930-631-34

Figure 2-3. Steering valve unit.

(3) Disconnect horn button wire at horn.

(4) Connect horn button wire to horn terminals .

(4) Remove two screws securing clamp (fig. 2-

(5) Remove plugs from steering unit and hoses.

3) to instrument panel frame and remove clamp.

Check tags and connect hoses to steering unit.

Remove two screws securing shift lever clamp to

(6) Connect battery receptacle.

steering column and remove clamp.

(7) Check hydraulic reservoir and add oil if

(5) Remove two screws securing steering unit

necessary.

support to frame.

2-13. Hydraulic Pump and Motor

(6) Remove two screws securing steering valve

a. Removal.

unit (fig. 2-3) to stationary bracket.

CAUTION

(7) Lift steering valve unit, with steering wheel

Before proceeding with removal of the hydraulic

and shaft attached, carefully up and out of truck. Place

pump and motor, disconnect the battery

unit on a clean work surface.

receptacle and discharge the capacitors.

b. Installation.

(1) Raise truck, using a suitable hoist,

(1) Lift steering valve unit into position and support it

sufficiently to gain access to hydraulic pump. Block truck

against stationary bracket. Install screws and lock

securely.

washers to secure unit to stationary bracket.

(2) Remove the drip pan from beneath truck.

(2) Position support against frame and install

Remove floor and toe plates.

screws, lock washers, flat washers and nuts to support

(3) Remove the drain plug from the hydraulic oil

steering unit.

reservoir and drain the hydraulic oil into a clean container

(3) Install clamp (fig. 2-3) around steering post

of suitable size.

and secure clamp to instrument panel frame with screws

and washers. Install shift lever clamp.

2-8