Adjust my pressure with cut in?
I run a mobile service. my compressor holds 120 lbs. when it drops to 90 it kicks back on. I want it to drop to 50 lbs before it kicks on. how do i adjust
Ed, the thing that controls the air compressor cut in pressure is the pressure switch. It also controls the compressor cut out pressure level too.
I’m puzzled as to why you feel the need to reduce the cut in pressure to 50 PSI?
Wouldn’t the same thing be accomplished by turning your regulator down to 50 PSI?
Regardless of the pressure in the compressor tank then your air tools would then only see that 50 PSI, would use less air because of the lower pressure setting, and thus would reduce the frequency of compressor cut in.
If you must change your pressure settings, and I generally advise against it, as they are factory set for good reason, then one of the two threaded shafts with the nuts pushing down on springs inside your compressor pressure switch will adjust the cut in and the other will adjust the compressor cut out pressure levels.
That is assuming that your pressure switch is accessible, and has those two springs I spoke of, since you don’t mention the make or model of your air compressor.
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