Question about Craftsman 3 gal. Air Compressor, 1.5 hp, Horizontal k

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Lack of pressure

My air compressor builds up to 60 psi and just stops running, i have a craftsman mdl#919.153130, 12 gal. 3 hp. can you help me. thank you, joe garcia

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  • richard_sanm Nov 11, 2008

    I have a 3 gallon tank..only reaches 20 psi..

  • Anonymous Mar 18, 2014

    When I plug it up it compresses air but something sounds broken

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My air compressor builds up to 40 psi and just keeps running, i have a craftsman 5 GAL, 1HP, 125 PSI and pressure goes up to 40 psi and dose not go any higher and on the other hand engine keeps running and dose not stop. Please advise?
Thanks.
Kia

Posted on Nov 25, 2008

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If it stops running it's definatle the pressure switch. Most are adjustable by tightening the nuts holding the springs inside the switch

idealkia - I'd bet your piston ring/seal is worn. it's a straightforward job replacing them if you're able. I got a roll of cork gasket material from NAPA and made my own. They don't last long but they work well and it's CHEAP.

Posted on Dec 17, 2008

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I had the same problem and fixed it with a kit of cylinder, rod, piston and gaskets (from Sears)

Posted on Dec 06, 2008

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The pressure switch needs adjusting - need service book for that one - but I do not think the pressure switch is servicable- I think you have to have switch replaced at service centre.good luck

Posted on Oct 26, 2008

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My compressor will not go over 20 psi i have a craftsman 921 4 gal 125 psi compressor and it will not build past 20 psi i do not know how to get to the pistons and stuff what do i do?


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Craftsman 3 gal., 1.5 hp air compressor: won't auto shut off, builds only 40 lbs pressure, air leaks from the 2 holes in oil filler cap?


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Compressor not building pressure and continues to run


Unplug it and listen for air leak. What pressure does the manual tell you it should run to? The safety release could be bleeding air, listen for that, with it off. Make sure it is designed for more than 60 PSI by manufacture.

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