I need to get a new pop off valve for my air tank on a 680ck but I can't find what pressure it should be I'm thinking #150 but not sure any help would be appreciated
Your tank has a Bendix ST3 safety valve. 175 psi. Case rebranded it with their own part number. About $10.00 on ebay for a new one. Your air compressor governor should unload at about 130 psi.
Ok thanks wasn't sure about the safety valve psi . Governor works good leaky valve