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 block or
discarded
oil
seal,
press
oil
seal
(Q)
into
place.
e. Installation of Spring Seat.
(1) Slide assembled spring seat (K) onto trunnion cross
tube. Hold seat level with tube and with rotary mo-
tion, work seat into position carefully so that open-
ing
in
seat
will
slip
over
felt
seal
retainer
(S)
and
oil seal will slip over oil seal wiper (R) without dam-
age. Seat should cover felt seal retainer when fully
positioned.
(2)
Install
outer
cone
and
roller
bearing
assembly
(H)
on trunnion cross tube.
(3)
Install
bearing
adjusting
nut
(G)
on
trunnion
cross
tube.
Using
wrench
41-W-3825-72
31),
tighten
nut sufficiently to force inner cone and roller bearing
assembly (W) into place and then back off nut until
seat can be turned freely by hand, but without lateral
movement of seat being apparent.
Some drag will
be noted in turning a well adjusted seat due to oil
and lubricant in bearing cones.
(4) Install key washer (F) on trunnion cross tube, mat-
ing pin in bearing adjusting nut (G) in hole of washer.
Install
bearing
jamnut
(E)
on
trunnion
cross
tube
using
opposite
end
of
wrench
41-W-3825-72
31).
(5)
Install
a
new
cap
gasket
(D)
and
seat
cap
(C)
on
spring seat and secure with six 5/16 x 1/2 cap screws
(A)
and
5/16-inch
(B).
(6)
Lower
each
axle
sufficiently
to
seat
spring
in
spring
seat (K).
Spring center
bolt
must
fit
into
recess
in
top of spring seat.
(7) Install but do not tighten one 1 x 5 8/5 hex-head
bolt (P) and one 1-inch lockwasher (N) in each
side
of
spring
seat
(K).
(8)
Install
spring
saddle
(L)
on
top
of
spring.
Install
two U-bolts (M) over saddle and down sides of spring.
(9)
Install
two
1-inch
(Y)
and
1-inch
hex
nuts
(Z)
on
each
U-bolt
(M).
Tighten
nuts
suffici-
With
ently
to
bring
spring
down
into
spring
seat.
spring and seat in this position, tighten each 1 x
5 5/8 hex-head bolt (P) ((7) above).
(10)
Remove
jacks
from
trunnion
cross
tube.
(11) Install wheels (par. 52b).
TAGO l321B
89
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