TM 9-2320-273-20
MALFUNCTION.
TEST OR INSPECTION.
CORRECTIVE ACTION.
1.
FRONT TIRES WEARING UNEVENLY:
Step 1.
Inspect U-bolts for tightness.
Tighten U-bolts (125-165 Ib-ft (170-224 N-m) for M915;
200-270 Ib-ft (271-366 N-m for M916 thru M920.
Step 2.
Inspect spring shackle pins for looseness using a pry bar. No noticeable movement
is allowable.
Refer to Direct Support Maintenance.
Step 3.
Check wheel bearings for vertical looseness using a pry bar beneath the tire. Check
for proper lubrication and damage,
Adjust, lubricate, or replace bearing (para 10-13 or 10-14, as applicable).
Step 4.
Check for proper toe-in (0 to 1/8-inch).
Adjust toe-in (para 10-10).
Step 5.
Check brakes for proper adjustment.
Adjust brakes (para 9-31 and 9-32).
2.
HARD STEERING:
Step 1.
Check oil level in power steering pump.
Fill to proper level (LO 9-2320-273-12).
Step 2.
Check all steering linkage for proper lubrication.
Lubricate (LO 9-2320-273-12).
Step 3.
Check U-bolts for tightness.
Tighten U-bolts (125-165 Ib-ft (170-224 N-m) for M915;
200-270 Ib-ft (271-366 N-m) for M916 thru M920).
Step 4.
Inspect all hydraulic lines and fittings for leakage or damage.
Tighten or replace lines or fittings (para 10-22 and 10-23).
Step 5.
Check tie rod for damage or loose ends. No play is allowable.
Tighten or replace (para 10-20).
10-5
Table 10-2. Steering Troubleshooting Procedures.
