919.175260 only gets to 40psi then I have to shut it down
by Jay C.
(San Jose, CA., USA)
919.175260 only gets to 40psi before I have to shut it down
I have an older Craftsman air compressor model no. 919.175260 (5hp single stage 60 gal. upright) and when I turn it on it seems to run fine until it reaches 35psi then it slows down, starts to chug and the belt starts to squeal so I shut it down.
If I let it continue with the belt squealing it trips the house circuit breaker.
If I run the compressor with the bottom drain valve open it will run until I shut it down (no problems).
I shut the drain valve, start it up and the same thing happens.
I cleaned the check so it now looks new. I re-installed the check valve and again at 35psi the belt starts to squeal so I shut it down.
I motor is brand new, a WEG 5hp so I don't think that's the problem. Do you have any suggestions?