TM-9-2330-238-14

CHASSIS, SEMITRAILER: 6-TON, 4-WHEEL M295A1; SEMITRAILER, VAN: EXPANSIBLE, 6-TON, 4-WHEEL M313; SEMITRAILER, VAN: SHOP, FOLDING SIDES, 6-TON, 4-WHEEL M447 AND M447C; SEMITRAILER, VAN: REPAIR PARTS, SHOP EQUIPMENT, 6-TON, 4-WHEEL M749; SEMITRAILER, VAN: REPAIR PARTS STORAGE, 6-TON, 4-WHEEL M750

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL

JULY 1992

TM-9-2330-238-14 - Page 113 of 462

TM 9-2330-238-14

Table 4-2. Organizational Troubleshooting (Con’t).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

17. BRAKING IS UNEVEN.

Step 1.

Step

2.

Step 3.

Check to see if brakes are adjusted properly.

Adjust brakes (para 4-36).

Check for contaminated brakeshoe linings.

Clean brakedrum and brake components. If necessary, replace brakeshoe (para 4-38) and

oil seal (para 4-48).

Check for defective wheel cylinder.

Replace defective wheel cylinder (para 4-39).

18.

BRAKES ARE NOISY

Step 1.

Check for loose rivets or linings.

Replace defective brakeshoe (para 4-38).

Step 2.

Check for cracked, scored, or worn brakedrum.

Replace defective brakedrum (para 4-48).

Step 3.

Check for foreign material in brakedrum.

Clean brakedrum and brake components.

WHEELS, HUBS, AND TIRES

19.

EXCESSIVELY WORN, SCUFFED, OR CUPPED TIRES.

Step 1.

Check for deformed wheel or rim.

Replace wheel (para 4-49).

Step 2.

Check for loose wheel bearings.

Adjust wheel bearings (para 4-48).

20. NOISY OR WOBBLY WHEELS.

Step 1.

Check for worn or damaged wheel bearings.

Replace wheel bearings (para 4-48).

Step 2.

Check for loose wheel bearings.

Adjust wheel bearings (para 4-48),

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