TM-9-2320-280-20-1

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 1 OF 3

JANUARY 1996

TM-9-2320-280-20-1 - Page 571 of 888

TM 9-2320-280-20-1

REFERENCE INFORMATION

STEERING SYSTEM

Check hydraulic hoses, power steering pump, power steering cooler, hydraulic control valve, hydro-boost

unit, steering gear, fan shroud, and fan clutch. See hose replacement procedures (refer to para 8-25).

Check power steering cooler for bent fins or any other airflow restrictions. Straighten fins or replace power

steering cooler (para. 8-28) if damaged beyond repair.

1. With engine off, disconnect pressure hose

from hydro-boost and connect tube and quick-

disconnect to hydro-boost.

NOTE

Have drainage container ready to

catch fluid.

2. Connect adapter and quick-disconnect to

pressure hose.

3. Connect hose from valve on power steering

analyzer to tube and quick-disconnect on

hydro-boost.

4. Connect hose from gauge side of power

steering analyzer to adapter and quick-

disconnect on pressure hose.

5. Loosen hose clamp and remove cooler hose

from return tube on steering gearbox.

6. Plug hose with plug or bolt (3/8 in. or 10 mm

dia.) and secure with hose clamp.

7. Connect bypass hose to tube on steering

gearbox and secure with hose clamp.

(continued on page 2-469)

HOSE (GAUGE SIDE)

HOSE

(VALVE

SIDE)

GAUGE

POWER STEERING

ANALYZER

ADAPTER/QUICK-

DISCONNECT

PRESSURE HOSE

COOLER HOSE

BYPASS HOSE

HOSE CLAMP

BOLT/PLUG

RETURN

TUBE

STEERING

GEARBOX

HOSE CLAMP

TUBE/QUICK-

DISCONNECT

HYDRO-BOOST

VALVE

Change 2

2-468.1