TM 5-4310-451-14Table 4-2. Mechanical Troubleshooting (Con’t).MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONTIRES6.ABNORMAL TIRE WEAR.Step 1Check for loose wheel bearings.Adjust wheel bearings (see paragraph 4-68 or 4-69).Step 2Check for deformed brakedrum.Replace brakedrum (see paragraph 4-69).7.NOISY OR WOBBLY WHEELS.Check for loose or worn wheel bearings.Adjust or replace wheel bearings (see paragraph 4-68 or 4-69).SUSPENSION8.AIR COMPRESSOR UNIT LEANS TO ONE SIDE.Check for broken spring leaves, center bolts, and clips.Replace springs (see paragraph 4-75).9.AIR COMPRESSOR UNIT PULLS TO ONE SIDE.Step 1Check wheel bearing adjustment.Adjust wheel bearings (see paragraph 4-68 or 4-69).Step 2Check for loose springs.Tighten U-bolts (see paragraph 4-75).AIR COMPRESSOR10.BLOWDOWN VALVE OPERATES ERRATICALLYStep 1Check for dirty blowdown valve.Inspect and clean blowdown valve (see paragraph 4-88).4-10
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