Pro 4000 has loud clacking

by Justin
(Orange County CA. USA )

DeVilbiss Pro 4000 air compressor

DeVilbiss Pro 4000 air compressor

Hi there I got a pro 4000 5hp marathon 230 single phase motor 80 gal tank and a 97508394 pump and the actual model number is RA5T80V1D.


I hooked it up tonight changed the oils and when I fired it up this loud ass clacking comes from it.

I’ve never heard this one run before but I’m around big compressors often and that don’t sound normal to me.

Any idea of what it might be or what’s causing that damn noise? Thanks for your time

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Feb 10, 2019
Pro 4000 clacking
by: Doug in s.d.ca.

I am not sure what the sound is, but I can say that sometimes, it's coming from a loose or bad drive belt, and/or insecure sheave(s).

Have you checked anything else?

Anyway, let us know what you find and we can go from there.

Good luck.

Feb 10, 2019
For sale or trade?
by: Paul

Thats a nice compressor man I would like to buy it or trade if interested.

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