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 115 of 462

TM 9-2330-238-14

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

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

24.

25.

26.

27.

28.

RATCHET PAWL WILL NOT OPERATE.

Step 1.

Check lubrication.

Lubricate in accordance with Chapter 3, Section 1.

Step 2.

Check for damaged ratchet pawl.

Replace defective ratchet pawl (para 4-54).

LEVELING JACK WILL NOT EXTEND AND RETRACT PROPERLY

Step 1.

Check lubrication.

Lubricate leveling jack in accordance with Chapter 3, Section 1.

Step 2.

Check for bent or damaged inner housing.

Replace inner housing (para 4-54).

Step 3.

Check for defective ratchet wheel.

Replace ratchet wheel (para 4-54).

LEVELING JACK FOOT PLATE WILL NOT SET ON BASE.

Check for defective foot plate.

Replace defective foot plate (para 4-54).

SUSPENSION SYSTEM

SEMITRAILER PULLS TO LEFT OR RIGHT

Step 1.

Check to see if brakes are adjusted properly.

Adjust brakes (para 4-36).

Step 2.

Check for improper wheel bearing adjustment.

Adjust wheel bearings (para 4-48).

Step 3.

Check for loose suspension springs.

Tighten U-bolt nuts (para 4-56).

FOLDING SIDE DOORS (M447, M447C, M749, AND M750)

FOLDING SIDE DOOR HARD TO OPERATE.

Step 1.

Check lubrication.

Lubricate in accordance with Chapter 3, Section 1.

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