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ing assembly (G. fig. 51) in cup. Press oil seal into
place.
C a u t i o n : Install seal carefully to prevent damage. If
tapped
into
place
with
hammer,  use  block  of  wood
Do  not  hammer  directly
or
old oil seal as driver.
A S seal is being forced into place, note that
on
seal.
If slightly out
it
remains level with surface of hub.
If  position  becomes
of
alinement,  tap  on  high  side.
extreme, remove seal and start over.
Position
hub
on
axle
and
move
into
place
carefully,
making sure seal slips o v e r wiper without damage t o
seal  packing.
Keep hub square with axle while slip-
Position outer cone and roller bear-
ping into place.
ing
assembly
(N,
51)
in
hub
and
install
bearing
adjusting nut.
While  turning  hub,  tighten  wheel
(2) A d j u s t b e a r i n g s .
bearing  adjusting  nut  using  wrench  11-W-3825-72
Back off nut about
until hub binds on axle spindle.
1/8 turn.
Check adjustment by grasping drum and at-
If  bearings  are
tempting to rock it on axle spindle.
properly adjusted, movement of brake drum in rela-
tion to top edge of brake backing plate will scarcely
be
visible,
with
drum
turning
freely.
A
slight
drag,
caused by lubricant and grease seal will be apparent
in well adjusted bearings.
Note. Bearings may be adjusted without removing wheels from
hub.
Lock
wheel
bearing
jamnut.
Slide
key
washer
onto
(3)
Adjust wheel bearing adjusting nut so
axle
spindle.
that
pin
of
nut
will
mate
with
nearest
hole
in
key
washer.
Check  bearing  adjustment  again.  If  move-
ment
of
adjusting  nut  has  interfered  with  original
adjustment, withdraw key washer so hole clears pin
and turn adjusting nut so pin will mate with next hole
in key washer. to give better adjustment.
Install wheel
bearing
jamnut
using
wrench
41-W-3825-72
Tighten
nut
to
bear
against
key
washer.
and 38).
Check wheel bearing adjustment again. Install hub cap
and gasket and secure with six 5/16 x 1/2 cap screws and
5/16inch Iockwashers (M270A1), or ten 1/2 x 1 1/2 cap
screws and 1/2-inch lockwashers (M270 and M269).
(4) Install wheels on hub. Refer
to
paragraph
52e.
Note.
following
hub
and
brake
operations
are
to
be
The
drum
performed
if
required,
after
wheels
have
been
removed
from
hub
TAGO 1321B
84



 


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