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TM5-4210-229-14&P
4-186. FRONT WHEEL HUB/DRUM REPLACEMENT.
This task covers:
a. Removal
b. Installation
INITIAL SETUP
Tools
General Mechanics Tool Kit
Rubber Mallet
Materials/Parts
Wheel Drum (472278C1)
Grease (Appendix D, Item 20)
Equipment Condition
Para.
Condition Description
4-162
Tire Rim Assembly Removed
General Safety Instructions
Engine OFF.
Transmission in (N) neutral.
Parking brake set.
REMOVAL
a.
Remove eight locknuts (1), axle cap (2) and gasket
(3).
b.
Remove two bearing adjustment nuts (4) along
with washer (5).
c.
Tap on wheel hub (6) using a rubber mallet until
wheel (6) works loose and bearing outer
cone (7)
and bearing outer cup (8)
can be slid off spindle
(9).
d.
Remove wheel hub (6) and drum (10).
INSTALLATION
a.
Coat spindle (9) and pack bearing (7) with grease
(Appendix D, Item 20).
b.
Carefully slide drum (10) and wheel hub (6) onto
spindle (9).
c.
Slide bearing outer cup (8) and bearing outer cone
(7) onto spindle (9) and push into position in wheel
hub (6).
d.
Install inner bearing adjustment nut (4) and torque
to 50 ft-lb (67.8 N.m). Rotate wheel hub (6)in both
directions.
e.
Back off nut (4) approximately one-fourth to one-
third turn and check to assure free wheel
movement.
f.
Install washer (5) and outer nut (4).
g.
While securely holding inner nut (4) with wrench,
jam outer nut (4) by torquing out nut to 100-150 ft-lb
(136-203 N.m).
h.
Install gasket (3) and axle cap (2) and secure with
eight locknuts (1). Torque nuts to 45-50 ft- lb (61-
67.8 N.m).
i.
Install tire rim assembly (paragraph 4-162).
4-200
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