BRAKES
®
3
21
5.
Inspect the l
in
i
ngs
for
embedded
fo
reign
materia
l.
Din
can
be
removed with a stiff wire
brush. Check
for
any
traces
of
oil or grease; ifthey
are contam
in
ated they must be replaced.
6.
Inspect the camshaft lobe (
Fi
g
ur
e
72
) and the
pivot post
(Hg
ur
e
73
) on the backing plate for wear
or
corrosion. Minor roughness can
be
removed
with fine emery cloth .
7.
Inspect the brake shoe return springs
(F
igure
74)
for
wear
or
weakness. If they are
st
retched.
t
hey
will not f
ull
y retract the brake shoes leadi
ng
to
premature wear. Replace the spr
ing
s
as
a pair
if necessary.
8.
In
spect the backing plate (Fig
ur
e 75)
for
wear.
damage
or
cracks. Replace if
ne
cessary.
Assembly
I. Apply a light coat
of
molybdenum disulfide
grease
to
the c
am
shaft.
In
sta
ll
th
e camshaft (
Fi
g
ur
e
76) into the back
si
de
of
the brake panel.
2.
Apply a light coat
of
high-temperature grease
to
the camshaft and pivot post; avoid getting
any
grease on the brake backing plate where the brake
linings
may
come in contact wi
th
it.
NOTE
If new fillings are being instaffed. file
off
tile leading edge
of
each shoe a lirl/e
so that the brake will not grab when
applied
for the first few times.
3.
Hold the shoes
in
a
"V"
formation with the
return springs attached and snap one
of
the shoes
into place (
Figur
e 77) on the brake panel.
4.
Pivot the other shoe down
in
to place (Fi
gur
e
78). Make sure both brake shoes arc firmly seated
on the brake panel.
III
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