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MARCH
'74
S.7
TENSION
GEAR
ASSEMBLY
312-15601
*ST-15281
St-15291
N
ee
Gere
AST-15261
N
4
t
*312-
XP-3508
A
312-15241
*ST-15251
A
ae
Uo
*NA-405
A
*XP-40
ji
f
KUC-40
*WA-40,
*312-15231
*312-15801
40125
sT-15251
*ST-15091
|
i
*ST-15221
|
312-15701 (assy)
2
nn
~@
lii
X0-30165
N
pcs)
447-4505
Function
;
Maintains
proper
tension
of main drive
8.9
belt
over
gears.
Lubricate
gear
hub
and shaft
with
sil-
8,91
icone
grease.
8.8
NO.2 SPROCKET AND GEAR ASSEMBLY
(G) #2
SPROCKET
& GEAR
ASSY
312-16401 (assy)
*312-16101
HE=30108
l &ST-15021
*ST-15011
t.
-0
Yes
dp _ euer
ST-15301
*ST-16061
*312-16041
*30- 30185
(Ines,
XP-3510
3
\
-=e
>
*ST-15091
Function
:
Toothed
main
drive
belt
assures
proper
synchronization
between
No.1
sprocket
and
No.2
sprocket.
Lubricate
shaft
and
hub
grease,
Assemble
drive
gear
and
with
minimum
clearance.
with
silicone
sprocket
shaft
Check
:
Observe
entry
of sprocket
teeth
into
first
perforations
of
film
leader.
Use
acetate
base
film
leader
or
film
for
this
test.
Adjustment
:
Open lamp house
door
312-32101.
Loosen
screw
in end
of
sprocket
shaft
and
ro-
tate
sprocket
plate
to
correct
position.
Tighten
screw
and
close
lamp
house
door.
Note
:
Above
adjustment
not
critical.
Film
shrinkage will
affect
synchronization
of film perforations
and
sprocket
teeth
at No.2
sprocket.
If main
drive
belt
is
removed
or
skips
a tooth,
or
two,
readjustment
may
be
required.
Above
adjustment
may
also
be
made
by repositioning
main
drive belt
over
No.1
sprocket
drive
gear until
satisfactory
synchronization
is achie-
ved.
See also
S.10.
SELF-THREADING PATH
NO.1 SPROCKET SHOE 312-15201
Function
:
IN CLOSED
POSITION
it keeps
film
enga-
ged with
sprocket
teeth.
IN OPEN POSITION
film may be easily
removed.
To
open,
swing
lens
holder
out,
then
depress
film shoe.
It will
remain
open.
Shoe
will
close
automati-
cally when
lens holder
is swung
back
in to close
gate.
Proper
clearance
between
shoe
and
spr-
ocket
is
important.
Take
a piece
of
film and feed
into
sprocket
using
inc-
hing
knob,
advancing
film
approx.
5cm
(2").
Add
another
piece
of
film
over
first
one
and
turn
inching
knob.
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