TM-9-2320-386-10

2-1/2-TON, 6X6, M44A3 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; EXTENDED SERVICE PROGRAM (ESP); OPERATOR’S MANUAL

JANUARY 1996

TM-9-2320-386-10 - Page 159 of 223

TM 9-2320-386-10

3-9

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Table 3-1. Troubleshooting (Contd).

PARKING BRAKE SYSTEM

15. PARKING BRAKE DOES NOT HOLD VEHICLE

Step 1. Check parking brake control lever position.

If partially applied, pull parking brake control lever all the way up.

Step 2. Check parking brake control lever adjustment.

Turn knob on end of lever clockwise to increase braking action

(para. 2-3).

Step 3. If parking brake still fails to hold vehicle, notify unit maintenance.

END OF TESTING!

16. PARKING BRAKE DRAGS OR OVERHEATS

Step 1. Check parking brake control lever position.

If partially applied, release parking brake.

Step 2. Check parking brake control lever adjustment.

Turn knob on end of lever counterclockwise to decrease braking

action (para. 2-3).

Step 3. If parking brake still drags, notify unit maintenance.

END OF TESTING!

WHEELS AND TIRES

17. WHEEL WOBBLES OR SHIMMIES

Step 1. Check for loose wheel stud nuts and missing wheel studs.

a. Tighten wheel stud nuts if loose (para. 3-9).

b. Notify unit maintenance if wheel studs are missing and to torque

wheel stud nuts.

Step 2. Check for damaged wheel and uneven tire wear.

a. Check air pressure in tires. Turn accessory/battery switch to

ON position and check that tire pressure setting is at correct

pressure for selected terrain.

Adjust if necessary (para. 2-19).

b. Check air pressure in tires using tire and gauge hose assembly

(Appendix B).

If air pressure does not match ECU pressure, notify unit

maintenance.