Replacing Belts
Rewind
Belt-Disconnect
the two ends
of the worn belt; connect one of these
ends to an end of the new belt, and pull
the new belt through.
If the old belt is
not in position, feed the new belt into
the opening in front of the supply reel
arm. Guide the belt between the flanges
of the pulley until the end protrudes
from the opening in the top of the
housing. If the end of the belt hits the
housing, use a bent paper clip to guide
it. The belt should go through the
BELT
GUARD
(Figure 16).
Take-Up Belt-If
possible, this belt
should be replaced by your service
representative.
If such service is
unavailable,
use the following
pro-
cedure carefully.
Remove the two upper
sprocket-plate
retaining
SCREWS
and
the
SPACER
that is located behind the
retaining screw nearest the front of the
projector.
Lift off the upper sprocket
and plate assembly. Remove the old
belt. Hold the new belt as shown in
Figure 17, and push the looped end of
the belt into the opening in the mech-
anism. Make sure that the
STUD
is
inside the loop. Continue to push the
belt downward until the looped end is
in the
GROOVE
next to the sprocket drive
gear. The belt should be flat in the
groove. With the belt in this position,
replace the upper sprocket and plate
assembly, holding it firmly in a down-
ward direction
to engage the gears until
the retaining screws are tight.
Drive
Belts-These
belts seldom need
replacing.
If replacement
is necessary,
the work should be done by your pro-
jector service representative.
18
BELT GUARD
SPACER
FIGURE 16
STUD
GROOVE
FIGURE 17
