TM 9-2320-273-20
Table 10-3. Suspension Troubleshooting Procedures
MALFUNCTION.
TEST OR INSPECTION.
CORRECTIVE ACTION.
1.
VEHICLE WANDERS OR SHIMMIES:
Step 1.
Check for insufficient lubrication.
Lubricate (LO 9-2320-273-12).
Step 2.
Check for loose wheel stud cap nuts.
Tighten nuts to 450 Ib-ft (610 N-m).
Step 3.
Check for loose spring U-bolts.
Tighten nuts on 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.
Check wheel bearings for play using a pry bar.
Adjust or replace bearing (para 10-13 or 10-14, as applicable).
Step 5.
Inspect tie rod for damage and ends for looseness. No play is allowable.
Replace tie rod end if loose (para 10-20).
Step 6.
Inspect drag link for damage.
Replace drag link (para 10-19).
Step 7.
Check propeller shafts and universal joints for wear and damage. Wear is
indicated by any movement between the shaft and the joint in any direction.
Replace (para 8-11).
Step 8.
Check spring pins for wear using a pry bar, No noticeable movement is allowed.
Refer to Direct Support Maintenance.
Step 9.
(N/A M915). Check front axle shaft for damage by jacking up both wheels,
turning wheels to one extreme and rotating one wheel by hand. Listen for a
rumbling or grinding sound within the axle. Repeat on other wheel.
Refer to Direct Support Maintenance.
Change 1
10-9
