Spindle Operation; Rewind Operation - Kodak Instamatic M Series Repairing

Switching from regular 8 to super 8 changes the required
direction for rotating the speed-control knob to obtain
Forward or Reverse operation, Fig. K7. Observe For and
Rev change on the control panel.
When the selector knob is set for regular-8 film, the
regular-8 claw is in contact with the regular-8 follower,
which is riding on the in-and-out cam surface. The
follower may be set for 54, 18, or 6fps or "Still." In the
M85, the follower can be set for 18fps or "Still." The
follower imparts the in-and-out motion to the claw in the
film perforations.
All this time, the super-8 claw arm is being held up and
away from its follower by a nylon spacer on the toggle,
Fig. 8. The follower will be riding on the in-and-out cam
surface, but will not impart any in-and-out motion to the
claw. The claw will still go up-and-down, but will not go
in-and-out to engage film perforations.
In Fig. K9, note the direction of claw movement in the
regular-8 claw. It engages the perforations in regular-8
film at the top of the stroke, moves the film down,
disengages the perforations, and returns to the top of the
stroke again. The super-8 claw cycles in the opposite
direction, but does not engage film perforations. If there is
any in-and-out movement, it is very shallow.
When the selector knob is set for super 8, the selector
lever has moved the toggle counterclockwise. This moves
the other nylon spacer under the regular 8 claw arm,
raising it up and out of contact with its follower. At the
same time, the nylon spacer under the super-8 claw arm is
withdrawn, allowing the super-8 claw arm to contact its
follower. This act moves the regular-8 claw out of the film
perforations and moves the super-8 claw into position to
pull super-8 film, Fig. K10.
In reverse, Fig. K9, the ENGAGED claw enters the film at
the BOTTOM if its stroke, moves up, disengages the film
perforations, and moves down. Again the disengaged claw
never touches the film.

Spindle Operation

Both spindles are driven by a single belt and
revolve in a "take-up" direction when the
projector is running, and a fairly low constant
tension is maintained by the clutches. Since the
projector is sprocketless and the tension of
both spindles is about the same, film will
automatically take up on whichever reel the
claw moves the film toward.

Rewind Operation

The rewind spindle (front) has a certain amount
of slippage which is necessary for proper
operation. When the rewind switch is moved to
the "On" position, the front spindle is driven by
a pin which prevents slippage, thereby rewind-
ing the film.
40/KODAK M-SERIES PROJECTORS
Compliments of:
www.KodakParts.com
FIG. K8
FIG. K9
FIG. K10
FIG. K11