Question about Air Tools & Compressors
The cover plate where the wire enters the motor will usually have that information if the motor is capable of it. Sometimes that data is on the motor specification sheet adhered to the motor, and if the motor manufacturer is known, that specific model of motor would have a datasheet with that information.
Also too, if you do not have an owners/installation manual, go to the manufacturers website and see if they have a manual available.
Some motors are wired strictly for one voltage only too.
Posted on Oct 28, 2012
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Posted on Jan 02, 2017
SOURCE: converting from 220 to 110 volts
Most brands of air comperssors are built to work on either 220 or 110 v. I believe that 220 v compressors are more efficient and draw less current and run cooler.
The more expensive compressors have a switch allowing for voltage selection. Still others will have a wiring diagram printed on the motor allowing voltage change by changing jumpers. Most all of the sears compressors that I have repaired were of single voltage with no other way to change except change motor. Do not worry however, you have the better motor. It is easier to convert the outlet plug to 220 by isolating the circuit and installing a 220 v breaker. enjoy
Posted on Nov 27, 2008
The bleed valve is an unloader of sorts that allows the compressor to start with-out a load. It closes when the pressure in the airline reaches about 20-25lbs with good volume. If air volume is not sufficient, the valve will not close. To solve the problem lets do a few tests. A long cord will reduce power and reduce air volume. Try powering the compressor with-out extension cord. If bleed valve closes when you do not use a cord, the compressor is not getting enough voltage, use shorter cord of the 12 gauge quality and more hose to reach work. If valve still does not close, check for air leaks on all fittings including around pressure switch and drain valve with soapy water. Repair as necessary and retest. If no leaks were found, temporarily plug bleed valve port with screw/bolt and run compressor till set pressure cut-off while counting minuites/seconds. The compressor should fill and shut off within three minutes or so. If it takes an unusually long time to fill, then the reed valves /valve plate is worn and leaking pressure back into cylinger. Leaking valves will usually result in very hot discharge airline/air. Reinstall the bleed valve after test. Parts and partslist are available at www.toolpartsdirect.com . Good luck on the repair and email if you have other questions.
Posted on May 06, 2009
I have a Kobalt 60 Gal 3.7 hp air compressor. Send me your email address and I'll make sure you get your schematic. Hope this helps! MichaelGG@health.ok.gov
Posted on Jul 15, 2009
your motor overheated from too low a voltage if theres a manual reset try this,also replace the two motor start and run capacitors on the motor body
Posted on Dec 24, 2009
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