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CLEANING
1.
Using parts-cleaning so lvent, wash grease,
dirt,
and
foreign
matter
off
all
parts;
dry
with
compressed air.
2.
Remove any drive belt dust accumu lat ion
from
the stationary sheave,
movab
le
sheave,
and bushing using
parts-cleaning solvent
on-
ly.
•
CAUTION
•
00 not use steel wool or a wire brush to clean
components having a bushing; damage will
result.
INSPECTING
_
NOTE: Whenever a part
is
worn excessively,
-
cracked, defective, or damaged
in
any way,
replacement is necessary.
1.
Inspect
stat ionary
s heave,
movable sheave,
spider,
and
cove
r
plate
fo
r
cracks or
imperfec-
tions in
the casting.
2.
Inspect
the
arm
pins for wear or
bends.
3.
Inspect
the bushing
in the
cover plate
for
wear,
damage, or
cracks. Measure t he
inside
diameter of
the
bush
ing and
the outside
diameter of
the
stat ionary sheave
hub.
The
difference
(c learance) must be less than
0.76
mm
(0.030
in .).
Fig. 4·58
8371
Fig. 4·59
8372
4.
Inspect the
bushing
in the
movab le sheave for
wear, damage, or cracks. Measure the
inside
diameter of
t
he
bushing and
the
outside
diameter of the stationary sheave
hub.
The
difference
(c learance)
must be
less
th
an
0.76
mm
(0 .030
in.).
Fig. 4·60
8369
Fig
.
4·61
8370
5.
Inspect
th
e spring
for proper compression
qualities.
Spring
compression
must
be
53.4
kg (118
Ib)
when compressed
25.4
mm (1 in.)
from normal
length.
75
I
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