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(7) Pull spider (1) from splines on axle
(7) Inspect oil seal (29) for warping, damage,
housing tube.
or signs of leakage.
(8) Remove outer bearing cone (22) from hub
(8) Replace defective parts as authorized.
d. Reassembly and Installation.
(25).
(9) Slide hub (25) and brakedrum (30) from
axle housing tube.
NOTE
(10) Remove inner bearing cone (28) and oil
Do not reuse gaskets.
seal (29) from axle housing tube.
(1) Install  wheel  bearings, hub
(25),
(11) Remove nuts (32) and lockwashers (31)
brakedrum (30), and spider (1) on axle housing tube
and separate hub from brakedrum.
(33).
(12) Remove bearing cups (21 and 27) from
(2) Install nuts (4), washer (3), and lock
hub only if replacement is necessary.
bearings as follows:
c. Inspection and Repair.
(a) Rotate wheel in forward direction
(1) Wash all metal parts in cleaning solvent
and at the same time, tighten inner nut (4) until a definite
(P-S-661) and dry thoroughly.
drag is felt in wheel rotation.
(2) Inspect all gear teeth and splines for
(b) Back nut off just to the point where
excessive or uneven wear and damage.
wheel rotates freely, then tighten outer nut against inner
(3) Inspect  wheel  bearings  for  defective
nut without disturbing position of inner nut.
rollers, excessive radial play, and restricted rotation.
(3) Continue  reassembly in  reverse
(4) Examine brake drums for scoring, heat
order of disassembly ( b above). Use wooden or plastic
checks, or out of-round condition.
mallet to drive axle shaft in.
(5) Resurface drums if scored, cracked from
(4) Install wheel assemblies (TM 10-3930-
heat checks, or out-of-round.
Do not resurface
618-20).
previously turned drums or turn in excess of 0.030 inch.
(5) Lubricate in accordance with LO 10-3930-
(6) If resurfacing drums is not required, polish
618-12.
surface with fine emery cloth to remove discolorations
and lining residue.
5-23

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