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 196 of 462
f.
e.
TM 9-2330-238-14
Section VIl. WHEELS, HUBS, AND BRAKEDRUMS MAINTENANCE
Page
Paragraph Title
Numb er
Hub, Wheel Bearings, and Brakedrum Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-98
Tire and Tube Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-103
Wheel Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-102
4-48. HUB, WHEEL BEARINGS, AND BRAKEDRUM MAINTENANCE.
This Task Covers:
a.
Removal
d.
Assembly
b.
Disassembly
Installation
c.
Cleaning and inspection
Adjustment
/nitia/ Setup:
Equipment Conditions:
●
Wheels chocked.
●
Wheel removed (para
Tools/TestEquipment:
Materials/Parts:
●
Grease (Item7, Appendix E)
4-49).
●
Drycleaning solvent (Item 14, Appendix E)
. One gasket
●
General mechanic’s tool kit
●
One oil seal
●
Adjustment nut wrench
●
Three lockwashers
References:
●
Eighteen self-locking nuts
●
TM 9-214
a.
REMOVAL
1.
Remove three screws (20), Iockwasher (1), hubcap (2), and gasket (3) from hub (9). Discard Iockwasher and
gasket.
2.
Remove outer bearing adjusting nut (4), keywasher (5), and inner bearing adjusting nut (6) from axle spindle
(1 6).
3.
Carefully move brakedrum(15) on axle spindle (1 6) to
loosen outer bearing (7). Remove hub (9), outer bearing,
and brakedrum from axle spindle.
b.
DISASSEMBLY
1.
Remove inner bearing (11) and oil seal (12) from axle spindle (16) or hub (9). Discard oil seal.
2.
If ribbed neck bolts (17) are damaged, remove 18 self-locking nuts (19), washers (18), ribbed neck bolts, and
brakedrum (15) from backing plate (13). Discard self-locking nuts.
3.
If ribbed shoulder bolts (14) are damaged, remove six ribbed shoulder bolts and backing plate (13) from hub (9). _
4-98
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