Question about Craftsman eVolv 3 Gallon Oil-Free Compressor
Pop-off valve kicks out around 80 psi compressor will not fill completely and cycle automatically like it should
Yes or it's opening because your gauge is dangerously off...
check and make sure
Posted on Dec 30, 2013
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Posted on Jan 02, 2017
Most likely it is the unloader valve. This is inline with the air filltube from compressor to tank. Somestimes the unloader valve is screwed into the tank and air tube is attached to it. This device takes the pressure out of the tube so the compressor can start without the back pressure from in the tank. Other possibility, the start capacitors of the motor. The capacitors must give a kickstart upon startup or the motor will just hum for a couple seconds and overload the breaker. A tempoary solution is to turn off the power to compressor when it reaches 120psi, then allow the pressure to drop to 40 or less, then turn power on and mostlikey compressor will start with a load of 40psi or less. It is a nuisance but it works until you replace the bad part. Goodluck,Macgivor
Posted on Jan 16, 2010
if it's leaking from the center ,try loosening it let air blow out & tigthen .--- if it's leaking from the theads try tigthening it some more without breakage //////// this valve is the same as a metal radiator petcock with pipe threads that are tappered // return the compressor if still under warranty or try pipe dope -- check for crossed threads--buy new petcock from auto parts store .....a street elbow & 4'' of pipe & quarter turn vavle from the home depot ( or similer supply store ) works nicley as a replacement / this way you can reach the valve to drain the water with out laying on the ground.--------------1/4 pipe thread i think .
Posted on Jun 06, 2011
check your hose or couplers for restiction --------- try exchaging with know good ones------- the rubber seal in the female coupler may be the culprit ------------torn// deteriated// comming apart & blocking off air flow....
Posted on Jun 06, 2011
SOURCE: I have a craftsman air compressor #919.167320. It will only build pressure up to 80 psi and the pump will continue to run. I checked the check valve according to the manual and it seems fine. Any sug
Hi, I have a sears compressor I will take the gauge and have them check for a problem, and will replaced it good luck.
Posted on Nov 18, 2012
This is usually caused by long extension cord, leaking check valve or weak capacitor. Most likely leaking check valve. Easy to check, run compressor for a couple of minutes and shut off. Listen for air leaking from pressure switch or at the intake filter. If leaking, let out air and remove check valve and look for debris stuck under the valve seat. To find the checkvalve, follow the air discharge tube from the head of the compressor to the tank. You should find a brass or chrome valve threaded into the tank. If check valve is not leaking, suspect weak capacitor or long cord (motor shop will test cap for free). Good luck
Posted on Apr 02, 2013
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