919.721601 pressure cuts off early

Pressure cuts off at 90 psi.Rated at 120 psi. Is there a way to increase the cut off pressure?


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Bill says...

Yes, you can adjust the cut in and cut out pressure settings of your air compress. I advise against it.

The question I'd like answered is the cut out pressure of 90 PSI, is this normal, or has the cut out pressure changed?

If the latter, then I would suspect a failing pressure switch, if, in fact, the pressure switch is shutting the compressor off early.

If 90 PSI is the normal cut out pressure level, then really, there is nothing you can do for your air compressor that's safe to increase that cut out.

Cheers,

Bill

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919.155730 air compressor - how can i increase power

by mp
(Gilbertsville pa usa)

how can i increase power on a 3 1/2 hp 125 gal. craftsman air compressor to use an impact gun to remove lug nuts

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Hello MP:

Is what you are saying that the air pressure coming out of the air hose is not sufficient to run the impact gun or are you saying that there is not enough air to run the gun?

Your air compressor has an upper limit to the air pressure it can create. You can't get more air pressure out of it than that. You may be able to turn your air regulator setting up to the maximum level though, if you have not done it already.

In terms of air flow, your compressor is designed to produce a certain flow of compressed air at a certain pressure, and beyond that, all you can do is get a bigger air compressor.

Cheers,

Bill

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on/off switch cost more than 50 percent of the entire compressor

by Jeff Rickabaugh
(Altoona, Pa. USA)

My Craftsman Model 919-167312 30 gal 2 hp on/off switchbroke and they didnt care. "we would be glad to sell you another one for 100.00 plus tax and shipping. Its a 249.00 unit.. It almost burned my garage down.

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Bill says...

Jeff, I share your frustration. Build a $250 air compressor from purchased parts, and you'll pay over a $1000+ for it, I'll bet.

Try to find a used one.

Cheers,

Bill

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