TM-9-2320-283-34-2

TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, MQ15A1

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

DECEMBER 1983

TM-9-2320-283-34-2 - Page 250 of 570

TM 9-2320-283-34-2

STEERING SYSTEM.

3-91. STEERING GEAR INTERNAL LEAKAGE TEST (Continued).

LOCATION/ITEM

ACTION

REMARKS

WARNING

To avoid injury, use a malleable (soft

metal) spacer block, and keep fingers

clear of axle stop and spacer block

during steps 1 and 3.

Also make sure

spacer block

contacts

axle

stop

squarely.

Contact that is not square

could break axle stop or dangerously

throw or eject spacer block.

CAUTION

Do not hold steering wheel in full

turn position for longer than 5 to 10

seconds at a time to avoid damaging

steering pump.

1. Block (6).

Hold between items (1) and (5)

on left side of vehicle during

step 2a.

2. Wheel (2).

a. Have assistant turn

counterclockwise until

item (5) bottoms on item

(6).

b. Read pressure and flow

Use a suitable spring

rate on item (3), while

scale to apply force.

assistant applies 20 lbs

Pressure reading should

force to rim of item (2).

be at least 1850 psi.

Flow rate should be

between 0 and 1 gpm. If

pressure is below 2850

psi,

replace steering

pump and reservoir (TM

9-2320-283-20). If flow

rate is more than 1 gpm

replace steering gear,

refer to paragraph 3-93.

3-806