Kodak Flash Supermatic Shutter Service Manuals
■ DECEMBER 1949
*i¥<w xefiain....
S. M. No. 1-1490
H AS H
SUPER MAT 1C
SHUTTERS
• For Kodak Medalist II Camera
• With Kodak Ektar f/4.7 127mm., f/3.7 105mm.,
and f/7.7 203mm. Lenses
TABLE OF CONTENTS H
Kodak Flash Supermatic Shutter for
Kodak Medalist II Camera
TROUBLE C H A R T
DISASSEMBLY AND REASSEMBLY.............................................................. 7
Diaphragm Control Ring .....................................................................7
Speed Control Ring
Winding Lever .......................................................... 7
Cover C om p le te ............................................................................. 8
Winding Gear, Clutch Assembly, and Star Wheel A s sem bly ................. 8
Trigger Assembly and Bulb Lever Assem b ly
Retard Gear Train .......................................................................... 9
Main Drive A ssem b ly..........................................................................10
Flash Contact Parts.............................................................................11
Flash Synchronization . . . ...................................... 11
Flash Shutter Contact Conversion K it
Shutter B lad es................................................................................... 13
................................................................................
.....................
7
................
..........................
9
12
Kodak Flash Supermatic Shutter with
Kodak Ektar f/4 .7 127mm, f/ 3. 7 105mm, and f/7 . 7 203mm Lenses
Page
No.
3
TROUBLE C H A R T
DISASSEMBLY AND REASSEMBLY
Speed Control Ring ..........................................................................19
Winding Lever .................................................................
Cover C om p lete................................................................................20
Winding Gear, Clutch Assembly, and Star W heel Assembly ......................
Trigger, Time Lever Assembly, and Bulb Lever A ssembly
Retard Gear Train.............................................................................21
Main Drive Assembly . . . ......................
Flash Contact P arts
Flash Synchronization..........................................................................23
Flash Shutter Contact Conversion K it
Shutter B lad es
• Capitalized words in the text indicate nomenclature which appears on illustrations. Such
nomenclature, when not followed by a direct figure reference, will be found on the figure
indicated in the last preceding figure reference.
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i ....................................... 21
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15
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19
...
19
. 20
20
22
.2 4
26
KODAK FLASH SUPERMATIC SHUTTER
FOR THE KODAK MEDALIST II CAMERA
TROUBLE CHART
TROUBLE
Solenoid will not work
flash shutter
Synchronizer scale
does not operate
Shutter does not trip
easily
No Kodatron contact The BLADE CONTROLLER
Shutter blades remain
open on high speeds
Shutter does not set
Scale rivet pulled out.
Bind in the operating DISK,
figure 11, at the bearing NUT.
Possible burr on TRIGGER and
collar ASSEMBLY,figure 5.
CONTACT STUD, figure 14, is
not touching the CONTACT
SPRING, figure 8.
Plate blade studs missing on
mechanism plate.
Split shutter blades.
Loose studs on the shutter
blades.
The TRIGGER LATCH, figure 5,
is not returning to its proper
position after the shutter has
been released.
CAUSE
Shutter not designed for use with a solenoid.
REMEDY
Fit new rivet and readjust the scale.
Clean thoroughly. Use powdered graphite.
Blow off excess.
Burnish the trigger and collar assembly at
the point where it contacts the MAIN DRIVE
ASSEMBLY, figure 7, when in a set position.
Adjust the contact spring so that it touches
the contact stud on the blade controller when
the blades are almost fully opened. It is
possible to make the adjustment after re
moving the front lens mount.
Replace and restake the studs carefully to
avoid swelling the top of the studs.
Replace the shutter blades.
Replace the shutter blades.
The trigger latch may be bent and binding
on the speed index plate or cover.
It may be necessary to reduce the tension
on the TRIGGER LATCH SPRING, figure 3.
The winding lever does
not hold when the shut
ter is set
Shutter speeds slow
Copyright, 1949, Eastman Kodak Company
T.M. Reg. U.S. Pat. Off.
The winding gear pinion is loose
on the gear.
The CLUTCH ASSEMBLY, fig
ure 4, is slipping.
The latch point on the contact
LEVER COMPLETE, figure 8,
is damaged.
Retard gears dirty.
The MAIN DRIVE SPRING, fig
ure 7, is weak.
Replace the pinion gear assembly.
Replace the clutch assembly.
Replace the contact lever complete.
Remove and clean the retard gears.
Replace the main drive spring.
3
TROUBLE
CAUSE
REMEDY
Shutter speeds slow
(cont'd)
Shutter speeds fast
Shutter blades buckle NOTE: The following conditions
Shutter blades binding.
Excessive retard sector travel.
Blade controller with contact
stud binding.
Insufficient retard sector
travel.
Insufficient pallet engagement
(on speeds 1/10 second or
slower).
Gear train dirty.
Too much tension on the main
drive spring.
may contribute to blade buckle
singly or in combination.
Remove and clean the shutter blades. If
necessary, replace the blades.
Swedge the SPEED CONTROL RING, figure
2, at the area controlling the slow speed.
(See figure 1.)
Re-form the diaphragm retainer plate to
allow more clearance between the plate
and the mechanism plate. Be sure the
blade controller is flat.
File the speed ring at the area controlling
the fast speed. (See figure 1.)
1. Remove material on the speed control
ring in the area of contact with the pallet
bracket stud.
2. Checkfor bind of the PALLET BRACKET,
figure 6, against the retard gear PLATE
COMPLETE.
Clean the gear train thoroughly.
Replace the main drive spring.
Loose studs on shutter blades
or MECHANISM PLATE,figure
12.
BLADE CONTROLLER with
contact stud, figure 13, not flat.
Shutter blades not flat.
Mechanism plate not flat.
Blade controller too loose or
too tight on the central hub of
the mechanism plate.
Too much play between the
mechanism plate and the dia
phragm retainer PLATE WITH
WINGS ASSEMBLED, figure 13,
due to retainer plate being
bowed.
Burr or roughness on diaphragm
retainer plate with wings as
sembled.
4
Replace the shutter blades. Restake the
studs on the mechanism plate carefully to
avoid swelling the top of the studs.
Straighten or replace the blade controller.
Replace the blades.
Replace the mechanism plate.
Replace the blade controller.
Replace the diaphragm retainer plate with
wings assembled.
Replace the plate.
TROUBLE
CAUSE
REMEDY
Shutter blades buckle
(cont'd)
Shutter operates
instantaneously
on B (bulb)
Both flash settings are
below the millisecond
tolerances (fast).
Both flash settings are
above the millisecond
tolerances (slow)
Blades opening too far.
Blades closing too far.
No clearance between the blade
controller latch and the BLADE
CONTROLLER LUG, figure 14,
when the shutter is in the tripped
position.
The lug on the side of the rec
tangular opening in the trigger
is out of adjustment.
The tension is too great on the
WINDING GEAR SPRING, figure
4.
There is not enough tension on
the winding gear spring.
The winding lever may be bind
ing around the central opening of
the cover or on the speed INDEX
PLATE, figure 2.
File and burnish the blade controller LATCH
at point "A". (See figure 7.)
Swedge mechanism plate at "B", figure 14.
Swedge the mechanism plate at point "C,"
figure 14, such that this point acts as a
stop for the SETTING LEVER with stop
stud, figure 12.
Bend the lug on the trigger in or out until
proper adjustment is achieved.
Relieve the tension slightly on the winding
gear spring. However, there must be enough
tension on the spring to permit the winding
lever to carry through on both the F and M
flash settings.
Place the winding gear spring under slightly
greater tension. Care should be taken dur
ing this adjustment not to disturb the trigger
latch.
Try lubricant, or replace the WINDING
LEVER, figure 2.
The F (short stroke) is
within the millisecond
tolerances but the M
(long stroke) is fast
Constant flash short
Both flash settings are
extremely fast
THE FLASH RETARD PALLET,
figure 3, is not meshing properly
with the winding lever.
The flash retard pallet may be
binding on the speed index plate.
Cracked contact insulating
BLOCK, figure 8.
The contact spring may be bent
and touching either the contact
lever or the cover.
The trigger latch may not be
falling into the slot on the cover.
This allows the shutter blades
to open too soon.
With special Tool No. 657, turn the eccentric
post so that the pallet will mesh firmly in
the teeth of the winding lever. Make certain
the post is tight on the cover after making
this adjustment.
The index plate will be marked at the bind
ing point. File the plate at this point to
allow clearance for the pallet.
Replace the contact insulating block. The
shutter should be checked independently of
the camera. If the shutter is working prop
erly, refit it to the camera. If the short
persists, check the case insulating bushing
NUT, figure 8, to see that it or any part of
the contact wire is not touching the focusing
tube or light guard.
Re-form the contact spring.
Add more tension to the trigger latch spring.
5
TROUBLE CAUSE
REMEDY
Both flash settings are
extremely fast (cont'd)
The end of the trigger latch is
bent back, toward the trigger.
When the latch falls into the
slot on the cover, the bent latch
will permit the trigger to go
down far enough to trip the
shutter blades.
Re-form the end of the trigger latch by
bending it slightly toward the winding gear.
After the shutter has been assembled, it can
be checked to see if the shutter blades will
open before the winding lever opens them.
1. Set the shutter.
2. Set the winding lever.
3. Holding the winding lever down, release
the shutter. The shutter blades should not
open while the winding lever is down.
6
DISASSEMBLY AND REASSEMBLY
DIAPHRAGM CONTROL RING
The sequence of disassembly is as follows:
1. Front lens mount, using Tool No. 501-0.
2. Diaphragm control ring RETAINER WITH
SYNCHRO SCALE, figure 2.
3. Diaphragm control RING SPRINGS (one or
two).
4. DIAPHRAGM CONTROL RING.
The sequence of reassembly is as follows:
1. Diaphragm control ring, fitting the notch
opposite the pointer over the projectinglever
on the DIAPHRAGM RING, figure 2.
2. Diaphragm control ring springs (one or two).
3. Diaphragm control ring retainer with syn
chro scale.
4. Front lens mount, using Tool No. 501-0.
SPEED CONTROL RING
The sequence of disassembly is as follows:
1. Diaphragm control ring, paragraphs 1-4
above.
2. DIAPHRAGM CLICKSTOPSPRING, figure 2.
3. Speed and diaphragm INDEX PLATE and the
SPEED ring CLICK STOP SPRING.
4. SPEED CONTROL RING.
CAUTION: If the WINDING LEVER
is disturbed, the flash timing will
have to be readjusted.
The sequence of reassembly is as follows:
1. Speed control ring with shutter in tripped
position. Be sure the projecting lug on the
BULB LEVER ASSEMBLY, figure 5, the
studs on the retarding SECTOR WITH STUD,
figure 6, and the PALLET BRACKET with
stud assembly are resting against the inside
edge of the speed control ring and are not
underneath the ring.
2. Speed ring click stop spring. The crimped
side of the spring should face toward the
back of the shutter.
3. Speed and diaphragm index plate.
4. Diaphragm click stop spring.
5. Diaphragm control ring, paragraphs 1-4
above.
WINDING LEVER
The sequence of disassembly is as follows:
1. Diaphragm, control ring, paragraphs 1-4
above.
2. Speed control ring, paragraphs 2-4, above.
3. WINDING LEVER, figure 2.
The sequence of reassembly is as follows:
1. Apply a thinfilm of grease (Texaco Unitemp-
RCX169 Grease) to the teeth of the winding
lever.
2. Set the shutter.
3. Winding lever, with the sixth or seventh
tooth from the left meshed with the WIND
ING GEAR, figure 4. Place the WINDING
GEAR SPRING in tension by giving two and
one-quarter strokes to the winding lever,
lifting and replacing the lever after the first
and second strokes. This should be the
DIAPHRAGM RING
COVER COMPLETE
WINDING LEVER
SHUTTER RETAINING RING
SPEED CONTROL RING
SPEED CLICK STOP SPRING
RING SPRING
RETAINER WITH SYNCHRO SCALE
DIAPHRAGM CONTROL RING
DIAPHRAGM CLICK STOP SPRING
Figure 2
7
approximate setting for the flash synchro
nization of the shutter.
8. SHUTTER RETAINING RING, figure 2.
9. COVER COMPLETE, figure 3.
CAUTION: Do not touch the TRIGGER
LATCH, figure 5, as it may release
the winding gear spring tension.
Trip the shutter and lightly hold the wind
ing lever down around the central collar on
the cover. As the shutter is tripped, the
end of the latch should fall into the slot on
the cover. If it does not, add more tension
on the TRIGGER LATCH SPRING, figure 3.
Check for a bind between the trigger latch
and the TRIGGER ASSEMBLY, figure 5, at
the point of attachment. The winding lever
should contact the trigger latch; push the
latch out of the slot in the cover and open the
shutter blades. After the shutter has been
tripped, the latch should return to a position
where it is resting on the ledge just above
the small slot in the cover.
After the trigger is depressed, allow it to
return to its proper position very slowly. If
there, is too much tension on the trigger
latch spring, it will tend to retard the action
of the latch and the trigger.
4. Speed control ring, paragraphs 1-5, page 7.
COVER COMPLETE
The sequence of disassembly is as follows:
1. Diaphragm control ring, paragraphs 1-4,
page 7.
2. Speed control ring, paragraphs 2-4, page 7.
3. Winding lever, paragraph 3, page 7.
4. TRIGGER LATCH SPRING, figure 3.
5. TRIGGER LATCH, figure 5.
6. High speed spring CAM, figure 7, and the
HIGH SPEED SPRING.
7. FLASH RETARD PALLET, figure 3.
The sequence of reassembly is as follows:
1. Cover complete.
2. Set the shutter.
3. Trigger latch, with the long bent end of the
latch contacting the inner edge of the contact
LEVER COMPLETE, figure 8. Be sure the
latch does not bind.
4. Trigger latch spring; do notfasten securely.
Lift the loose end of the spring over the
trigger latch until it is at a point half way
between the latch and the central collar.
Then secure the spring. Place the spring
against the outside edge of the trigger latch.
The latch should be burnished and a thin
film of grease (Texaco Unitemp-RCX169
Grease) applied at the point of spring contact.
5. Shutter retaining ring.
6. Winding lever, paragraphs 1-3, page 7.
7. Flash retard pallet, on the eccentric stud.
Pull down the winding lever slowly and see
that the pallet falls into every tooth of the
lever. If it does not, turn the eccentric stud
until the pallet is closer to the lever, using
Tool No. 657. Care should be taken not to
get the pallet too close to the lever, as this
will cause the action of the lever to be rough.
8. High speed spring and the high speed spring
cam.
9. Winding lever, paragraph 4, page 8.
WINDING GEAR, CLUTCH ASSEMBLY, and STAR
WHEEL ASSEMBLY
The sequence of disassembly is as follows:
1. Diaphragm control ring, paragraphs 1-4,
page 7.
2. Speed control ring, paragraphs 2-4, page 7.
3. Winding lever, paragraph 3, page 7.
4. Cover complete, paragraphs 4-9, page 8.
8
5. WINDING GEAR, figure 4, and the WINDING
GEAR SPRING.
6. CLUTCH ASSEMBLY.
7. STAR WHEEL assembly.
The sequence of reassembly is as follows:
1. Winding gear and the winding gear spring
on the WINDING GEAR STUD, figure 14.
2. Star wheel assembly.
3. Clutch assembly, with a thin film of grease
(Texaco Unitemp-RCX169 Grease) on the
underside of the assembly. The top gear
on the clutch assembly should turn freely
only in a clockwise direction when the lower
gear of the clutch assembly is held tight.
4. Cover complete, paragraphs 1-9, page 8.
TRIGGER ASSEMBLY AND BULB LEVER ASSEM
BLY
The sequence of disassembly is as follows:
1. Diaphragm control ring, paragraphs 1-4,
page 7.
2. Speed control ring, paragraphs 2-4, page 7.
3. Winding lever, paragraph 3, page 7.
4. Cover complete, paragraphs 4-9, page 8.
5. Unhook the MAIN DRIVE SPRING, figure 7,
from the MAIN DRIVE SPRING STUD, figure
14.
6. TRIGGER SCREW, figure 5, TRIGGER
SPRING, TRIGGER WASHER.
7. TRIGGER ASSEMBLY, bulb lever SPACERS,
BULB LEVER ASSEMBLY, and BULB LE
VER SPRING.
The sequence of reassembly is as follows:
1. One bulb lever spacer on the BULB LEVER
STUD, figure 14.
2. With the bulb lever spring underneath, hold
the trigger assembly with the oval hole up
and insert the bulb lever assembly between
that part of the trigger which is operated by
the cable release and the upper part of the
trigger. Insert the projecting lug on the
bulb lever through the rectangular opening
on the trigger.
3. Remaining bulb lever spacer between the
top of the trigger and the top of the bulb
lever assembly.
4. With the hooked end of the bulb lever spring
turned in a clockwise direction, guide the
parts down over the bulb lever stud. Insert
the hooked end of the bulb lever spring into
the small hole in the side of the case.
5. Trigger washer, trigger spring, and trigger
screw. Lift the long end of the spring over
the end of the main drive spring stud, and
rest it against the stud.
6. Hook the loose end of the main drive spring
onto the main drive spring stud.
7. Cover complete, paragraphs 1-9, page 8.
RETARD GEAR TRAIN
The sequence of disassembly is as follows:
1. Diaphragm control ring, paragraphs 1-4,
page 7.
2. Speed control ring, paragraphs 2-4, page 7.
3. Winding lever, paragraph 3, page 7.
4. Cover complete, paragraphs 4-9, page 8.
5. Retard GEAR PLATE SCREW, figure 6,
near the retarding SECTOR WITH STUD.
6. Retard gear plate ANTI-BACKLASH
SPRING.
9
7. Unhook the retard PALLET BRACKET
SPRING. Remove the remaining retard
gear plate screw.
8. Retard gear PLATE COMPLETE.
9. Retard GEAR WITH NO. 2 PINION assembly.
10. Retard GEAR WITH NO. 3 PINION assembly.
11. ESCAPEMENT WHEEL with No. 4 pinion
assembly.
12. Retard PALLET.
13. PALLET BRACKET with stud assembly and
the pallet bracket spring.
NOTE: If the retard gears are dirty,
clean all the parts of the gear train
and the retard gear bearing holes in
the mechanism plate thoroughly.
14. Retarding SEC TOR SCREW. Unhook the re
tarding SECTOR SPRING.
15. Set the shutter.
16. Retarding sector with stud and the retarding
sector spring.
The sequence of reassembly is as follows:
1. Retarding sector with stud and the retard
ing sector spring, with the long end of the
spring at the top.
2. Retarding sector screw.
3. Place the long end of the sector spring
against the inner side of the blade controller
LATCH SPRING BUSHING,figure 7.
4. With the short end of the pallet bracket
spring down, place the spring inside the
pallet bracket with stud assembly. Allow
the long end of the spring to extend out toward
the case. Place the pallet bracket and the
pallet bracket spring on the PALLET
BRACKET SPRING STUD, figure 14. ’The
long end of the spring should rest against
the case.
5. Retard pallet.
6. Escapement wheel with No. 4 pinion assem
bly.
7. Retard gear with No. 3 pinion assembly.
8. Retard gear with No. 2 pinion assembly.
9. Retard gear plate complete, with the teeth
of the gear facing the shutter blades.
10. Retard gear plate screw, near the pallet
bracket.
11. Lift up the gear end of the gear plate until
the teeth of the retarding sector with stud
pass freely under the gear. Place the re
tarding sector so that when the gear teeth
are meshed the outer edge of the sector
will be approximately 1/8 inch from the
shutter case.
12. Retard gear plate anti-backlash spring, on
the RETARD GEAR PLATE STUD, figure 14.
Line up the opening in the spring with the
hole in the gear plate. Replace but do not
tighten the remaining gear plate screw. The
spring should be parallel to the shutter case.
Holding the spring in this position, tighten
the gear plate screw. Hook the end of the
anti-backlash spring on the retard plate
gear LUG, figure 6.
13. Place the long end of the pallet bracket
spring against the inside edge of the lug on
the retard gear plate complete.
14. Cover complete, paragraphs 1-9, page 8.
MAIN DRIVE ASSEMBLY
The sequence of disassembly is as follows:
1. Diaphragm control ring, paragraphs 1-4,
page 7.
2. Speed control ring, paragraphs 2-4, page7.
3. Winding lever, paragraph 3, page 7.
4. Cover complete, paragraphs 4-9, page 8.
5. Unhook the LATCH SPRING, figure 7, from
the main drive LATCH.
6. Unhook the MAIN DRIVE SPRING from the
main drive spring stud.
7. Set the shutter.
8. MAIN DRIVE ASSEMBLY, to which is at
tached the main drive spring.
The sequence of reassembly is as follows:
1. Apply a thinfilm of grease (Texaco Unitemp-
RCX169 Grease) in the slot on the main
drive assembly where it engages the stop
stud on the SETTING LEVER, figure 12; on
the MAIN DRIVE STUD, figure 14; on the
LATCH, figure 7, at the point of contact with
the LATCH SPRING, and on the latch where
it contacts the RETARDING SECTOR STUD,
figure 14. This area of the latch should be
burnished before applying the lubricant.
2. Main drive assembly on the main drive stud,
being sure to fit the setting lever stop stud
into the assembly.
3. Close the shutter blades. Push the latch
toward the BLADE CONTROLLER LUG.
The cutout portion of the latch will come to
rest around the lug. Place the loose end of
the latch spring against the vertical lug on
tip of the latch.
4. Main drive spring.
5. Cover complete, paragraphs 1-9, page 8.
FLASH CONTACT PARTS
The sequence of disassembly is as follows:
1. Diaphragm control ring, paragraphs 1-4,
page 7.
2. Speed control ring, paragraphs 2-4, page 7.
3. Winding lever, paragraph 3, page 7.
4. Cover complete, paragraphs 4-9, page 8.
5. CONTACT WIRE BUSHING, figure 8, the
contact WIRE, and the connector screw NUT.
6. CASE INSULATING BUSHING and the CON
NECTOR SCREW.
7. CONTACT SPRING.
8. Contact insulating BLOCK.
9. Contact LEVER COMPLETE.
The sequence of reassembly is as follows:
1. Contact insulating block.
2. If a new contact lever is to be used, place
the contact LEVER LATCH SPRING, figure
8, on the contact LEVER BUSHING, with the
long end of the spring at the bottom. Lift the
long end of the spring and rest it against the
outside edge of the spring lug on the contact
lever latch. Form the short end of the spring
around the vertical part of the contact lever
tail. Then place the CONTACT LEVER
SPRING on the contact lever bushing. Bend
the last 1/8 inch of the long end of the con
tact lever spring clockwise, with respect to
the bushing, at least 15 degrees.
3. Contact lever complete on the contact lever
stud. The ends of the contact lever spring
should face in, toward the shutter blades.
CONTACT WIRE BUSHING CONTACT LEVER SPRING
\ CASE INSULATING BUSHING
WIRE \ \ LEVER LATCH SPRING
BLOCK
NUT
CONTACT SPRING
CONNECTOR SCREW
Figure 8
LEVER COMPLETE
LEVER BUSHING
Turn the long end of the spring in a clock
wise direction to place it in tension, and
rest it in the groove in the case. Form the
short end of the spring around the vertical
part of the contact lever tail.
CAUTION: The contact lever tail is
burnished and must remain in that
condition.
4. Contact spring.
5. Case insulating bushing with the flat side fac
ing the outer rim of the case.
6. Connector screw and connector screw nut.
7. Contact wire bushing and contact wire.
8. Release the shutter and at the same time
retard its opening action by placing one
finger against the shutter SETTING LEVER,
figure 12. Observe whether the BLADE
CONTROLLER CONTACT STUD, figure 14,
makes slight contact with the contact spring
stud before the blades are fully open. If the
spring does not touch the stud, bend the end
of the spring toward the stud.
9. Cover complete paragraphs 1-9, page 8.
FLASH SYNCHRONIZATION
After the shutter is assembled, it must be
checked to see if the winding lever will always trip
the shutter blades when the trigger is released very
slowly. Set the shutter and the winding lever. Re
lease the shutter, allowing the winding lever to
return slowly. The winding lever must trip the
shutter blades.
The shutter must be checked to see if the shutter
blades will open while the latch is still in the slot
in the cover plate. To check for this condition, set
the shutter and the winding lever. While holding the
winding lever in the fully wound position, depress
the trigger. The shutter blades should not open
while the winding lever is being held down. If they
do, refer to the Trouble Chart. (Both flash settings
extremely fast; see page 5).
Check the operation of the winding lever safety
latch. When the shutter is not set, the winding lever
must be locked in the unwound position. After the
shutter has been actuated with the winding lever, the
lever must return fully and become locked in the
unwound position.
The flash settings on the shutter should be timed
with reliable shutter testing equipment. The toler
ances of the delayed action in the shutter for syn
chronization with the flash bulbs are as follows:
F (short stroke)* 3 1/2--5 1/2 milliseconds.
M(long stroke)* 12--16 milliseconds.
*From instant of contact until the shutter blades
first begin to show light.
1 1
FLASH SHUTTER CONTACT CONVERSION KIT
A more satisfactory operation of the shutter has
been achieved by a change in the design of the
flash contact parts. The old-style parts, which
are to be discarded, are no longer available. They
are to be replaced by the parts furnished in the
Flash Shutter Contact Conversion Kit No.121352 —
Supplement to Parts List No. 1-1490.
OLD-STYLE FLASH CONTACT PARTS
The sequence of disassembly is as follows:
1. CONTACT WIRE BUSHING, figure 9, the
contact WIRE, and the connector screw NUT.
2. CASE INSULATING BUSHING and the CON
NECTOR SCREW.
3. CONTACT SPRING.
4. CONTACT BRACKET with contact point
ASSEMBLY.
5. Contact insulating BLOCK.
6. Contact LEVER COMPLETE.
7. DETENT SPRING AND ROLLER SCREW,
DETENT SPRING AND ROLLER WASHER,
DETENT SPRING AND ROLLER ASSEMBLY
DETENT SPRING AND ROLLER SCREW
DETENT SPRING AND ROLLER WASHER
CONTACT ESCAPEMENT WHEEL
CONNECTOR SCREW
CONTACT SPRING
BLOCK
CONTACT BRACKET ASSEMBLY
LEVER COMPLETE ^
WIRE
c *
CASE INSULATING BUSHING
NUT
CONTACT WIRE BUSHING
Figure 9
and DETENT SPRING AND ROLLER AS-
EMBLY.
8. CONTACT ESCAPEMENT WHEEL.
new -stItle flash cont ac t par ts
The sequence of assembly is as follows:
1. Contact insulating block.
2. Place the contact LEVER LATCH SPRING,
figure 8, on the contact LEVER BUSHING,
with the long end of the spring at the bottom.
Lift the long end of the spring and rest it
against the outside edge of the spring lug on
the contact lever latch. Form the short end
of the spring around the vertical part of the
contact lever tail. Then place the CONTACT
LEVER SPRING on the contact lever bushing.
Bend the last 1 /8 inch of the long end of the
contact lever spring clockwise, with respect
to the bushing, at least 15 degrees.
3. Contact lever complete on the contact lever
stud. The ends of the contact lever spring
should face in, toward the shutter blades.
Turn the long end of the spring in a clock
wise direction to place it intension, and rest
it in the groove in the case. Form the short
end of the spring around the vertical part of
the contact lever tail.
CAUTION: The contact lever tail is
burnished and must remain in that
condition.
4. Contact spring.
5. Case insulating bushing with the flat side
facing the outer rim of the case.
6. Connector screw and connector screw nut.
7. Contact wire bushing and contact wire.
8. Cock and release the shutter and at the same
time retard its opening action by placing one
finger against the shutter SETTING LEVER,
figure 12. Observe whether the BLADE
CONTROLLER CONTACT STUD, figure 14,
makes slight contact with the contact spring
when the blades are fully open. If the spring
does not touch the stud, bend the end of the
spring toward the stud.
9. STAR WHEEL ASSEMBLY, figure 4.
10. Replace the cover complete and the winding
lever.
11. Cock the shutter; then press the trigger
to release the shutter. At the same time
hold the winding lever to prevent its return.
The trigger latch must drop into the slot on
the cover with a distinct snap. If it does not,
check for a bind between the trigger and the
trigger latch or between the trigger latch
and the cover complete. If no bind exists,
increase the tension on the trigger latch
spring. A slight downward pressure on the
trigger latch spring is desirable. There
12
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