4-68 WHEEL HUBS AND BEARINGS (CONT)
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.
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.
Clean outer and
inner bearings (5
and 9) and outer
and inner cones
(6 and 8) with
solvent and soft
bristle brush. ln
spect bearings for
ness, and noise
when rotated in
side cones. ln
spect inner sur
faces of cones for
unusual wear or
Lubricate as described in paragraph 410.
7. Inner cone,
Install inner cone (8) and inner bearing (9).
Press in new seal (10) by lightly tapping.