I have a coin-operated upright Polyphon that will not stop
automatically after playing a disc.  The discs measure 19-5/8"
approximately.

I have worked at it periodically for the last five years or so but
have not had any success at all so far.  I must mention that it always
used to stop automatically but it stopped doing that some time back.

I even had my son take digital pictures of the little spring part
that we suspect is causing the problem.  We took the whole motor out
and replaced it as before.  It always seems to come down to that little
spring.

I wonder if someone can suggest how to get it to work again as before.
I will be glad to forward a picture of the little spring and its
location.  Any suggestions will be greatly appreciated.

Yours sincerely

Charles Kossman
Montreal