Power Steering System Bleeding procedure

C3, TM 9-2320-211-20

2-213.2. Hydraulic Pump Assembly. The hydraulic

d. Power Steering System Bleeding procedure.

pump assembly is checked in the same manner as in

paragraph 2-21.3. 1a. No external leakage is allowed

(1) With engine shutoff control in the "OUT" (fuel

during the test. Check all joints and hydraulic lines. The

off) position, manifold heater switch in "OFF" position,

pump should maintain pressures indicated in paragraph

engage starter and crank engine for five (5) seconds.

2-213.1b above in the system during operation of the

Repeat until solid oil comes out of loose fitting at control

steering gear.

(2) Exercise the power steering system with the

NOTE

steering wheel, do not go to the full right or full left

To determine whether the hydraulic pump

rotation. Continue this procedure until the pump noise

relief valve is at fault in the early production

from air has diminished.

models, it is necessary to bypass the separate

(3) Perform power steering pump tests and

relief valve.

adjustments as outlined in para 2.213.1, page 2-172.

2-214. Front Wheel Alinement

(Operating pressure in this system is limited to 1,100 psi

by the relief valve (H) preset at factory.)

a. Caster (fig. 2-203). Front caster is the inclination of

the center line through the upper and lower steering

(4) After tests and adjustments are completed, shut

knuckle trunnions toward the rear of the truck. Caster is

down engine, remove pressure gage and connect the hose

(K) to the control valve.

established by the design and can be changed only by the

shifting of the front axle on the springs, or by distortion

(5) Restart engine, exercise steering system and

of the chassis frame or springs. There is no adjustment for

check all fittings for leaks.

caster.