I haven't worked on air compressors before, so need some help, please.
I have an old Campell Hausfield 2hp, 4 gallon twin tank air compressor. It cycles on at 90 psi and cycles off at 125 psi.
The 35 psi difference in pressure does not work well for my nail guns. I took off the plastic case on the controls and there only seems to be one adjustment screw (it's a funky screw, kind of star shaped with a bump in the middle. When I tighten it (using a needle nose pliers to turn the sides), it increases both the cut in and cut out pressure simultaneously, i.e., it will move up the cut in pressure to 95 and the cut out pressure to 130. Ideally I'd like to have it cycle on at 100 or a bit higher and cycle off at 125.
Even though it says it is a 125 psi max air compressor, is it dangerous if I set it to go over the 125? Seems like, with the range it's working at, I'd need to set it at cut in of 100 and cut out at 145 and then use the regulator for my nailer's max pressure.
Speaking of regulators, I just bought a new one from Northern Tool. It is an Ironton model
, it has one male threaded end and one female end, but it doesn't have an arrow or directions to show which is the inlet and which is the outlet. Any idea which one is the inlet? I wasn't crazy about buying Northern tool's generic Ironton model ... is there a better, more reliable regulator that you recommend?
Thanks much for the help regarding both questions!