We may have found other answers which could help you.
Click here for Howell Model ProjectorBell and Howell 626 projector - no volume?
Canon S400 projector - take up reel does not turn?
Eumig 610D?
Take up reel not turning?
How can I repair take up reel when it doesn't spin?
Eumig S910 take up spool not spinning Please Help?