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5{: REtflND MECHANISM
A- Description (Fig. #100, 101)
The rewind is accamplished by threading the film
from the take-up reel to tlre supply reel, and
engaging the rewind gears by pressing down on the
rewind lever, then switching the projector to the
Fis. +1O0
*it
When the rewind lever {24} is engaged, the eccentric
*raft {25} releases the pressure to the cap s€rew
(38) causing the rewind gears {45} and {ag} to
rnesh, thus positively driving the supply arm.
B- Adjustments
The am6ffi of gear lash is determined by the cap
screw {38)" Thc tension of the rewind lever is con-
trolled by the spring {37}. The rewind gears {45}
and {49} must mesh comp'€rely wirh only a slight
amount of lash to avoid unnecessary wear, lt is
important that afl the gears roff freely with a slight
amount of silicone oil on the shaft. The rewind
bracket assembly should also operate freely on its
pivot shaft {33}.
*Eu$tirD TEn$O$
SPFING
CAP SCFETV
L(NTER
GEAN
SNAEXET
5-7: SOUND DRUM AND FLYWHEEL
A. qg$_tE!ro!.
The sound drum and flywheet assembly's main
function is to stabilize the film, allowing the sound
optics cr magnetic head to read the sound tracks
with a minimum of speed variations. The ssund
drum, shaft, bearing and flywheel are precision
machined and balanced to maintain a cansistcnt
linear film speed, Care should be used when dis-
assembling or re-assembling thesc precision parts.
'.1,.{i
ti
d ( i
-
- 23
Fis. #1O1
& r-r,
e r \
- - 3 8
h
Rewinding
w-)E
4t{'d
Fig. #1&l
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- 5 S -
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