Question about Air Tools & Compressors
Sounds like you have a bad safety valve releasing to soon, all you can do is replace the safety valve with one with the proper pop off setting. Yours should be stamped on the valve it self with the proper PSI that that valve will pop off. 150.psi is about the max a 2 gallon should have, pop off is usually just above that setting on your regulator
Posted on Jan 10, 2015
The pressure switch is either out of adjustment or has failed. The compressor should shut off at a much lower pressure than the safety valve (~100 psi)
Posted on Nov 21, 2014
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Posted on Jan 02, 2017
The non-return valve is sticking and it's an easy fix. First, for safety, unplug the electric power to the unit and release any pressure in the tanks. Then unscrew the cap of the non-return valve (between the compressor and the tanks). Inside you should find a tapered rubber plug which is probably sticking in the valve housing. Sand down the diameter of the large end of the plug, being careful not to damage the flat face at the narrow end (which is the sealing surface). For sanding try 400 or 600 grade wet-or-dry paper and sand until the plug just moves freely in the housing. Reassemble and the compressor should work. Incidentally it's an oil-type unit, and quite durable. Make sure it has enough oil.
Posted on Nov 14, 2008
SOURCE: WILL NOT BUILD PRESSURE
Many craftsman compressor are built by champbell hausfeld using a dry type of cylinder and piston (no oil, no crankcase). If dry type, check for worn cylinder and piston ring. Pieces of the vinyl ring can jamb between the reed valves in the head causing air to escape from the intake. If your compressor has a crankcase and oil, check for broken reed valves in head. Spray soap solution on hoses, checkvalve, drainvalve, and fittings to check for leaks. Most likely problem is reed valves broken or open. Parts are available from sears or match parts to chpower.com. enjoy
Posted on Nov 27, 2008
so i came to this web site for help. where is the help? are we troubleshooting? come on man! what is this? my compressor runs and runs but does'nt build up pressure. it aint the pressure gauge, dummy. its is a problem with some kind of valve that is supposed to kick on- or off when the pressure gets low enough. problem is which valve and how to fix it! and to the guy whose compressor hums, dont use more than 25 ft of cord, and use the correct size cord and the correct power source.
Posted on May 04, 2009
the wire juction box on your compressor has a pressure switch that may be wound in to tight take the cover off the box there should be a switch with a machine screw with nut and washer and spring back this nut off and see if that helps if you go to far you just crank it back in until the switch hit although it may be the other way around you may have to tighten to lower the pressure some of them are made that way if this does not solve your problem send me a picture of the switch and can solve it from there
Posted on Jun 26, 2009
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