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

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My craftsman 3 gal. air compressor, 921.153101 won't compress air

The compressor is less than 2 years old and it won't compress air. I can't find my owner's manual.
Thank you!

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  • Anonymous Apr 02, 2009

    Mine won't compress air beyond 20psi. I took the head off and the gasket was gone between the two sections of the head. I replaced, but it still won't compress air.

    I may have something in backwards.

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I WOULD TRY DISCONNECTING THE PIPING FROM THE HEAD DOWN TO THE TANK AND SEE IF ITS BLOWING AIR. COULD THE COMPRESSOR BE RUNNING BACKWARDS - YOU WOULD HAVE HAD TO CHANGE THE WIRING IN THE MOTOR.
VALVES IN THE HEAD COULD ALSO BE BROKEN. YOU CAN REMOVE THE INTAKE AND IT SHOULD **** YOUR FINGERS AT THE OPENING. HOPE THIS HELPS.

Posted on Mar 14, 2009

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SOURCE: what kind of oil do i need for a craftman 1 hp 3

For warm climate, use 30wt non detergent oil (lowest price $3). Med priced oil ($5), use compessor oil sold at Lowes or any major center store including Wal Mart. Compressor oil is special blend for higher temperature range (continuous use). High price oil, synthetic compressor oil works for heavy duty use under severe conditions (also sold at major lumber centers, cost about $8~18).
For lite duty, any oil that you have handy will work fine (check oil before every use). Good luck

Posted on Oct 04, 2011

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