TM-9-2320-285-24-2

TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2, ARMY MODEL M878A1

TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

OCTOBER 1985

TM-9-2320-285-24-2 - Page 236 of 698

TM 9-2320-285-24-2

3-27.

STEERING SYSTEM TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

4.

NO RECOVERY (Cont)

a. If valve spool is damaged or worn, replace valve assembly (para 3-28d).

b. If valve spool is not damaged or worn, notify general support maintenance.

5. SHIMMY

Check ball sockets and drag link for wear or looseness.

a. If ball sockets are loose, tighten (para 3-28e); if components are worn, replace (para 3-28e).

b. If ball sockets and drag link are not worn or loose, refer to Malfunction 3 above.

6.

OVERSTEERING OR DARTING

Step 1. Check ball sockets and drag link for wear or looseness.

a. If ball sockets are loose, tighten (para 3-28e); if components are worn, replace (para 3-28e).

b. If ball sockets and drag link are not worn or loose, proceed to step 2 below.

Step 2. Check if front axle alignment is correct.

a. If front axle alignment is not correct, adjust (para 3-28c).

b. If front axle alignment is correct, proceed to step 3 below.

Step 3. Check steering column components for binding.

a. If components are binding, replace components (para 3-28a).

b. If components are not binding, proceed to step 4 below.

Step 4. Check if power steering gear sector shaft adjustment is too tight.

a. If adjustment is too tight, readjust (para 3-28d).

b. If adjustment is correct, proceed to step 5 below.

3-230