Shaft was locked pretty tight. Was able to free it. It turned freely by hand. Plug it in and it ran for about a half second and locked up again. Freed by hand again, ran again and same thing happened. Am thinking something is jamming it up in one or both cylinders.
Bill, should I just go the rebuild rout eat this point?
Thanks to all for your comments/suggestions.
Your apparent mechanical failure is one that I have not thought much about with the 75R... yet.
From my perspective, and the possibility of being remote with the compressor. It would be fairly easy to add a Zero Speed Switch to detect if the motor is rotating after turning it on.
Just pick-up the bottom of the rod with a proximity switch every time the motor makes a revolution. Can also get RPM this way.
Just another thing for diagnostics tho.
