"Ron(UK)" writes:

Sam Goldwasser wrote:

Here's a photo. Sorry about the quality:
http://repairfaq.cis.upenn.edu/Misc/tmp/gears.jpg
Just above the center hub, there is a white nylon tab sticking out,
which
is part of a lever that's mostly hidden behind the black plate.
That's the lever I'm talking about. Now, it could just be sn indicator
to show what's going on but it could also be part of some type of escapement.
There are also a post visible on either side of the white tab which are
different than the other posts used to just key the top. They could be
for missing parts (or optional parts).
The blue ring gear just visible through the window is moved by
the final white gear - there is a mating gear on the other side of the
black plate. The blue ring gear rotates freely inside the cam cylinder,
but also cycles the position of the lever. When the lever moves into a
certain position, it engages the cam cylinder and causes it to move
by one click. Limiting the travel of the lever prevents this movement.
What would make the most sense is that there is something missing
that's
supposed to do every 4th rotation of the final white gear to move the cam.
That would be one minute at 50 Hz.
Isn't there anyone at the French company who can answer the simple
question as to whether just powering the timer should cause the cam to
move in 1 minute increments? Don't confuse them with 50/60 Hz!
Thanks.

What do the two white wires go to? a pair of contacts, or a coil?

No, that's the motor.

--- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
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