CH 60 gal compressor pump knocks

by Howard
(Braham,Mn U.S.A.)

I have a C.H. 60 gal. It builds pressure up to 80# then starts knocking. I bought it new about 20 years ago. Ideas???

Comments for CH 60 gal compressor pump knocks

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Jun 20, 2017
Compressor knocking...
by: Doug in s.d.ca.

For starters, if it's belt drive check that the pulleys are secure on their shafts, and the belt tension is correct.

Any of them being loose has been known to cause this.

If it's not belt drive, need to know more about your machine.

Good luck.

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