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 285 of 462

TM 9-2330-238-14

4-73. HEATER REPLACEMENT (Con’t).

5.

Loosen two thumbscrews (48) and remove four screws (46), hinge (47), and heater cover assembly (45) from

heater duct assembly (49).

6.

Remove four screws (50) and two spring nuts (51) from heater duct assembly (49).

h.

INSTALLATION (M749 CONVERTO MODEL 8929)

1.

Position two spring nuts (51 ) on heater duct assembly (49) and secure with four screws (50).

2.

Position hinge (47) and heater cover assembly (45) on heater duct assembly (49) and secure with four screws

(46). Tighten two thumbscrews (48).

3.

Position heater (52) in place on heater duct assembly (49).

4.

Install mounting bracket (43) on heater (52) and heater duct assembly (49) with four screws (44), three screws

(42) and three retainers (53).

5.

Connect all electrical leads to heater (52). Remove tags.

i .

INSPECTION (ALL MODELS)

1.

Inspect seals, rubber strip, or gaskets for cracks, breaks, or deterioration. Replace as necessary.

2.

Inspect heater cover assembly and hinge for cracks, bends, or breaks. Straighten any minor bends or dents. If

damaged, remove rivets or screws and replace defective part.

FOLLOW-ON TASKS:

Ž

install exhaust system (para 4-72).

•

Install fuel lines (para 4-70).

•

Close side bonnet doors.

•

Test heater operation.

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