TRUCK IS HARD TO STEER. (Cont) -726250849

TM 9-2320-364-34-1

The truck steering operates with 3000 psi (20,685 kPa) hydraulic pressure. A high pressure hydraulic oil stream

can pierce a body and cause severe injury to personnel. Never disconnect any high pressure hydraulic oil line or

fitting without first dropping pressure to zero.

Damage to main steering pump or hydraulic pump control will occur if load valve is closed for more than 10 seconds.

PRESSURE TEST

(1) Disconnect hose 2275 from rear

steering gear.

(2) Install a flowmeter in line between hose

2275 and rear steering gear.

(3) Open load valve on flowmeter fully.

(4) Start engine (TM 9-2320-364-10).

(a) If less than 3 gpm (11 lpm) are

present, perform Steps (6)

and (7) below and replace

priority flow valve (Para 12-13).

(b) If at least 3 gpm (11 lpm) are

present, priority flow valve is OK.

(5) Slowly close load valve on meter.

(a) If 2000 to 2025 psi (13,790 to 13,962

kPa) are not present when flow

drops to 0 gpm (0 lpm), adjust

pressure sensing valve

(Para 12-13).

(b) If 2000 to 2025 psi (13,790 to 13,962

kPa) are present, pressure relief

valve is adjusted correctly.

(6) Open load valve fully.

(7) Turn OFF ENGINE switch.