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 Screw
and
prevent
getting
dirt
in
hole
or
on
ball.
on two 1 1/2-inch slotted hex nuts (K), tighten and
lock
with
two
3/16
x
2
1/2
cotter
pins
(J).
89. Tube, with Brackets, Assembly (Trunnion Cross Tube)
a. Removal.
(1) Position
semitrailer
on
level
surface
with
front
end
resting on landing gear.
W a r n i n g : Weight
of
vehicle
must
be
supported
by
blocking or support stands placed under rear corners
of body frame throughout operation.
(2) Remove wheels (par. 52b).
(3) Remove torque rods (par. 88a).
(4)
Remove
axles
(5) Remove springs (par. 86a).
(6) Remove spring seat (par. 55a).
(7)
Remove
eight
hex
nuts,
and
hex-head
bolts
which
secure
tube
with
brackets
assembly
with brackets assembly.
b.
Cleaning.
Clean mud and dirt from tube and brackets with
Remove grease from spindles of tube
water and stiff brush.
and seat retaining parts with mineral spirits paint thinner or
dry-cleaning solvent.
c. Inspection and Repair.
Check bearing seats and oil seal
wiper for roughness or damage.
File or grind smooth, high
spots,
burs,
or
roughness.
Check threads or spindles of tube
for wear, crossed threads, or damage. Using fine file, file off
burs, or hand chase threads if necessary. Check tube for bend.
Spindles of tube which are bent, but not cracked, can be
straightened.
Carefully
cut
badly
damaged
oil
seal
wiper
with
a chisel and remove.
Note. Make
sure
a
new
wiper
is
available
before
cutting.
Use
replacer
7950136
to
drive
new
wiper
into
place.
Frame bearing surface of both tube brackets must bc on same
plane.
Check with straightedge across both brackets. Check
holes in brackets for wear.
Should brackets be out of line
or holes in bracket worn to extent that bolts do not fit tightly,
replace with new tube with brackets assembly.
d.
Installation.
(1) To install tube, with brackets, assembly (fig. 41), which
h a s been removed, position assembly on brackets riveted
to
chassis
frame
and
install
eight
1
1/8
x
3
1/4
hex
head bolts, 1 1/8-inch lockwashers, and 11:8 hex nuts.
TAGO 1321B
132
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