TM 9-2320-260-20
Table 2-2. Mechanical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
38. CONTINUOUS WANDERING OR SWAYING (POOR CONTROL)
Step 1. Inspect leaf spring for breaks or damage.
Replace leaf spring if damaged (para. 7-16).
Step 2. Check tires for wear (malfunction 41).
Step 3. Inspect spring U-bolts and shackles (malfunction 37, step 2).
Step 4. Check steering system (malfunctions 43 through 46).
END OF TESTING!
39. VEHICLE SAGS
Step 1. Inspect leaf spring for breaks or damage (malfunction 37, step 1).
Step 2. Inspect spring U-bolts and shackles (malfunction 37, step 2).
END OF TESTING!
40. HARSH OR HARD RIDE
Step 1. Inspect spring U-bolts and shackles (malfunction 37, step 2).
Step 2. Test shock absorbers for resistance. Disconnect top end of shock absorber. Pull up and down
to test resistance. If there is little or no resistance or spaced resistance, shock absorber is
defective.
Replace defective shock absorber (para. 7-20).
END OF TESTING!
WHEELS AND TIRES
41. UNEVEN TIRE WEAR
Step 1. Check tires for proper inflation (TM 9-2320-260-10).
Adjust tire pressure if necessary (TM 9-2320-260-10).
Step 2. Check for loose or missing inner wheel adapter nuts or lug nuts (malfunction 36, step 3).
Step 3. Check shock absorbers for class II or class III leaks or damage.
Replace defective shocks (para. 7-19).
Step 4. Check wheel bearings for proper adjustment and damage (malfunction 36, step 6).
Step 5. Check for improper toe-in adjustment.
If tire problem is on front wheels, adjust toe-in (para. 9-8).
Step 6. Check that tires have been properly rotated (TM 9-2610-200-24 and TM 9-2610-201-14).
END OF TESTING!
42. SHIMMY, WOBBLE, OR VIBRATION
Step 1. Check for dirt or mud buildup on wheel.
Clean dirt and mud from wheel.
Step 2. Check for loose or missing inner wheel adapter nuts or lug nuts (malfunction 36, step 3).
Step 3. Inspect wheels for bends and damage to rims.
Replace wheel if bent or damaged (para. 9-3).
Step 4. Inspect wheel bearings for proper adjustment and damage (malfunction 36, step 6).
Step 5. Inspect tie rod ends for wear or damage.
Replace loose, worn, or damaged tie rod ends (para. 9-9).
END OF TESTING!
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