TM 9-4520-251-14
4-68 WHEEL HUBS AND BEARINGS (CONT)
Location/Item
Action
Remarks
INSPECTION
Dry cleaning solvent P-D-680 used to clean parts is potentially dan-
gerous to personnel and property. Flash point of solvent Is 100° to
138°F (38° to 59°C).
Avoid repeated and prolonged skin contact.
Do not use near open flame or excessive heat.
CAUTION
Always replace bearings and cones in sets. If either outer bearing or
outer cone needs replacing, replace both. If either inner bearing or in-
ner cone needs replacing, replace both.
5. Bearings
Clean outer and
and cones
inner bearings (5
and 9) and outer
and inner cones
(6 and 8) with
solvent and soft–
bristle brush. ln–
spect bearings for
looseness, rough
ness, and noise
when rotated in–
side cones. ln–
spect inner sur–
faces of cones for
unusual wear or
roughness.
SERVICE
6.
Wheel bearings
Lubricate as described in paragraph 4–10.
lNSTALLATION/ADJUSTMENT
7. Inner cone,
Install inner cone (8) and inner bearing (9).
inner bearing,
Press in new seal (10) by lightly tapping.
and seal
4-161
