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 197 of 462

TM 9-2330-238-14

4-48.

HUB, WHEEL BEARINGS, AND BRAKEDRUM MAINTENANCE (Con’t).

c.

CLEANING AND INSPECTION

WARNING

Dry cleaning solvent, P-D-680, is toxic and flammable. Always wear protective goggles

and gloves, and use only in a well-ventilated area. Avoid contact with skin, eyes, and

clothes, and DO NOT breathe vapors. DO NOT use near open frame or excessive heat.

The solvent’s flash point is 100°F-138°F (38°C-59°C). If you become dizzy while

using cleaning solvent, immediately get fresh air and medical help. If solvent contacts

eyes, immediately wash your eyes and get medical aid.

1.

Clean all parts thoroughly with dry cleaning solvent.

2.

Inspect inner and outer bearings and inner and outer bearing cups (8 and 10) in accordance with TM 9-214. If

inner and outer bearing cups need replacing, drive out of hubs with brass drift or punch.

3.

Position inner and outer bearing cups (8 and 10) in hub (9), with large diameter facing outward. Drive inner and

outer bearing cups in hub until seated, using soft faced hammer, brass drift, or wood block.

4.

Inspect inside diameter of brakedrum for out-of-round condition or scoring.

5.

Replace all defective parts.

TA701996

4-99