Adjusting Synchronization - Kodak Medalist II How To Service

which projects toward the trigger button end of the
mechanism plate.
If the shutter setting blade assembly cannot be
straightened so that it works freely, replace it, fit-
ting the pin on the top of the new assembly through
the hole in the shutter setting lever light guard (fig-
ure 13).
Replace the three shutter setting blade stud nuts,
the range finder actuating lever link washer, and
the range finder actuating lever link nut.
Put a little powdered graphite on the slide slots
of the shutter setting blade assembly and work the
blade assembly back and forth to make sure there
is no binding. The blade assembly should slide
under its own weight as the mechanism plate is
tilted. Then blow off the excess graphite, and shel-
lac in place the three shutter setting blade stud nuts
and the range finder actuating lever link nut.
Replace the upper guide rod with the slotted end
toward the back of the mechanism plate and fasten
it with the guide rod clamping screw.
Hook the shutter setting guide spring over the
pin on the shutter setting blade assembly which
extends up through the shutter setting lever light
guard.
TRIGGER PLATE AND TRIGGER.
If the trigger plate (figure 7) is bent, do not at-
tempt to straighten it, but replace it with a new part.
On top of the mechanism plate, release the trig-
ger plate spring (figure 13) where it hooks around
the lug on the vertical edge of the trigger plate
which projects through the slot in the mechanism
plate. The trigger plate is now free and it will drop
off the underside of the mechanism plate .
If the trigger button is damaged, release it by
pulling back on the trigger lock spring. Replace
the trigger button with a new part.
Assemble the new trigger plate to the mechanism
plate by fitting the hole in the end of the trigger
plate over the trigger plate stud on the trigger bell
crank assembly with which the lower end of the
trigger button makes contact. Then, fit the project-
ing vertical edge of the trigger plate through the
slot in the mechanism plate, and hook the trigger
plate spring over the lug near the trigger button.
NOTE: In some cases, it maybe neces-
sary to ream out the hole in the end of
the trigger plate in order to make it fit
over the trigger plate stud without bind-
ing. The trigger plate should fit snugly
but must turn freely on the stud.
ADJUSTING SYNCHRONIZATION.
TESTING SYNCHRONIZATION.
Whenever the synchronization is in doubt, it
must be checked in the following three ways before
it can be assumed to be in correct adjustment.
First check the synchronization by following
through the winding cycle with the focusing tube as-
semblyextended tothe infinity position. If the cam-
era is not properly synchronized with the focusing
tube assembly in the infinity position, adjust it as
described in the next paragraph on adjusting.
When synchronization is perfect at the infinity
position, extend the focusing 'tUbe assembly to the
14
limit of travel and again check synchronization. If
the shutter is now released later than the winding
mechanism, the trigger plate does not extend as
far to the left at the front as it does at the back .
To correct this trouble, use special tool No. 501-1
to grasp the trigger plate where the vertical section
of the plate extends through the slot in the range
finder couplet bar (figure 1). Bend the trigger plate
just enough to synchronize the camera at the fully
extended (3 1/ 2-foot) position of the focusing tube
assembly. Then recheck the synchronization at the
infinity position.
CAUTION: Only a very slight bending of
the trigger plate is required . Be care-
ful not to use excessive force .
When synchronization is perfect at both the in-
finityand 3 1/ 2-foot positions, cock the shutter with
the shutter setting lever pin and lever assembly
(figure 6). This lever moves the black spring on
the safety lever assembly up until it locks on the
first instead of the second step on the safety lever
spring stop plate (figure 13). Then slowly depress
the trigger button with a straight downward pres-
sure . If the black spring on the safety lever assem-
bly does not slip off the first step at the exact in-
stant the shutter is released, adjust the safety lever
spring stop plate as described on page 15.
NOTE : If the range finder plate is off
the camera, the shutter setting lever pin
and lever assembly can be used by hold-
ing it down over the bushing which holds
the shutter setting lever light guard in
place. The wider prong should be to the
left of the pin on the shutter setting blade
assembly which extends through the
mechanism plate and through the shutter
setting lever light guard.
ADJUSTING SYNCHRONIZATION WITH THE
SHUTTER OPERATING LEVER OR THE
RIGHT SHUTTER OPERATING LEVER LUG.
(See figure 10).
If the synchronization is only slightly off, it can
be adjusted by moving the right shutter operating
lever lug assembly. This adjustment can be made
with the range finder plate on the camera.
Loosen the lower operating lever lug screw and
the slide lug screw which hold the right shutter op-
erating lever lug. Move the lug to the right to re-
lease the shutter sooner or to the left to release it
later. After tightening the screws, shellac the heads
to prevent them from working loose.
CAUTION: Do not move the shutter op-
erating lever lug so far to the right that
the trigger plate fails to make solid con-
tact with the lug when the trigger button
is pushed down. If only the bottom edge
of the trigger plate touches the lug, the
plate may slip over the top of the lug
and get jammed between it and the bot-
tom surface of the mechanism plate .
If it is not possible to obtain proper synchro-
nization of the camera by moving the right shutter
operating lever lug , adjust the black spring on the
safety lever assembly as described in the next par-
agraph on page 15.