Question about Air Tools & Compressors
This is an old belt drive compressor the motor needs new brushes I can't find a part number or anything on this motor anywhere please help
Take the old brushes into and electrical shop... they may have to make a set or match them up... some of those old numbers dont mean anything unless you know it IS the actual model number
Posted on Dec 30, 2013
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Posted on Jan 02, 2017
If you can find a match to the brushes that came out of the motor they will work. When I say match, I mean the size. Height, width and depth, length only needs to be close to allow for wear over time. The longer the brush the more wear you will get. If you can't find the exact size then you can always file a larger brush to fit. I just had to do that for a small motor in my shop-vac, works great. Also another consideration is how the line coming off the back of the brush connects to the Stator. If you can't match the connector soldering it is fine or crimp the appropriate connector to it. Beyond those two elements brushes are pretty much the same.
Your biggest problem is finding an assortment of brushes. Some hardware stores will carry some, (check the bins with all the small nut, bolts and other connectors), also automotive parts stores carry them, (for alternators),. Your best bet would be an electric motor repair shop.
Posted on Jun 11, 2009
There should be a plate where the ires run thru, and on the plate or motor itself, there should be a diagram shouwing what terminals to connect the leads too.
Hope this helps.
Posted on Jan 18, 2010
Unloader valve on switch. That switch is not bleeding off cylinder head pressure,when it shuts off.
Posted on Apr 07, 2010
Testimonial: "thank you, this has had me stumped for days now. simply flipping the pressure switch off then back on again solved the problem. "
SOURCE: I need new brushes for
Brushes are not listed as a replacement part for your compressor. Not to worry because universal brushes are available at tool repair shops, hardware stores and ebay. Measure your brush and order same size or slightly larger and sand to fit. Dont worry too much about the length of brush as they can be shorter than factory and still work fine (just longer than worn brushes). Some motors have a spring pushing brush onto armature and others utilize the spring attached to brush to make contact. You can cut off wire from back of brush if needed, however if your motor needs brushes with spring attached, find close match and solder your old contact and spring to new brush. Also check for other problems because brushes should last the life of motor on your unit. Good luck
Posted on Aug 17, 2010
SOURCE: IR MODEL 2475 COMPRESSOR 7.5
The WEG 7.5 hp motors often blow the start capacitors. The box on top of the motor has 4 caps in it. 2 start and 2 run caps. Mark the cap wiring or make you a diagram to have at replacement time. Remove one or both of the caps. It is easier to remove two wires and pull the start caps out as a set. They are the black, large ones. I think they are 286 Micro farad caps. To get identical caps you may have to order from IR. If you can find a WEG motor shop they may have them. I usually go to grainger or my local motor shop to purchase. The ones here will be larger in size but can be fitted into the box on the motor. Also inspect the wiring in the box. I have found some wires with insulation gone. This may have caused your problem or a problem latter down the road.
Posted on Aug 31, 2011
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