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3.
Install housing and secure with three
socket-head cap screws.
4.
Keeping the stationary sheave fixed, rotate
the movable sheave counterclockwise until
all clearance is taken up. Using a scribe
and tri-square, scribe a line on the movable
sheave.
Fig. 4·4
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0725·334
5.
Keeping the stationary sheave and tri-
square fixed, rotate the movable sheave
clockwise until all clearance is taken up.
Using the scribe and tri-square, scribe
another line on the movable sheave .
6.
Using a caliper or
scale,
measure the
distance between the two scribed lines .
7.
If distance between the two scribed lines is
less than 4 mm (0.156 in.), the drive-clutch
bearing wear is within tolerance and the
drive clutch is acceptable.
Fig. 4-5
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0725-335
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8.
If distance between the two scribed lines is
more than 4 mm (0.156 in.), the maximum
allowable drive-clutch bearing wear is not
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within tolerance. Drive clutch movable
(,r
sheave and housing must be replaced.
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DISASSEMBLING
1.
Firmly hold the housing (cover)
to
the
movable sheave; th en
remove
th
e
three
socket-head cap screw
s
and washers
securing the hou sing to th
e
movable
sheave. Remove housing.
Note
th
e balance
marks on the movabl
e
sh
eave
and
hous
ing
to aid in assembly.
Fig. 4·6
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Fig. 4·7
ft
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WARNING
ill
The housing must be held down or personal injury
may result.
A968
A967
2.
Remove the spring; then remove the cup
washer.
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