Hi,
Numrich Gun Parts Corp. has parts for it maybe they could supply a diagram.
http://www.gunpartscorp.com/catalog/...spx?catid=9017
I have a 932 Jr. that was my wife's grandfathers, I may check with them for a diagram also.
Here's another possibility:
http://www.gunauction.com/buy/102065...epairs-catalog
Good luck!
Brad.