littlecanoe Posted May 3, 2009 Report Share Posted May 3, 2009 I have a 14.4 volt Dewalt, DW983 cordless drill. The Brushes are smoking and I need to replace them. I've found replacements to order on the net but wanted to make sure of how to put them in. I'm not sure how to go about it from looking at the motor. Any ideas? If more info is needed I might be able to post a pic of that end of the motor. Thanks, lc Quote Link to comment Share on other sites More sharing options...
FC Posted May 5, 2009 Report Share Posted May 5, 2009 There's no removable caps over the brushes? If not, you'll have to take it apart. I'd get a schematic from their website. Quote Link to comment Share on other sites More sharing options...
Spiris Posted May 6, 2009 Report Share Posted May 6, 2009 littlecanoe, sorry that your having problems. As you take it apart, check the commutator where the brushes run for visible grooves from the old brushes. If it's ok, then shine up the commutator with fine scotchbrite or sandpaper. Spray some contact cleaner to clean any debris from sanding. There is a method for checking the commutator for shorts but let's assume that it's ok. The brushes sometimes take patience to install so look them over and see if the brush cages have little pin holes so that you can access them from the exterior of the cordless plastic case body. Essentially you have to push the brush and spring down into the brush case and secure it into position using something like sewing needles so after reassembling you just pull the pins holding the brushes from the outside, so they drop into place against the commutator and you should be ready to go if that's all that's wrong. I hope that I made it clear enough to follow. This information might be available from the unit's website in a more understandable way with pictures. Spiris Quote Link to comment Share on other sites More sharing options...
littlecanoe Posted May 7, 2009 Author Report Share Posted May 7, 2009 Thanks fella's. The brushes don't have an external access. Here is a link to the schematic. Part #22 on the drawing is my part. The motor is held in place by tabs. I can't really tell if the Brush unit slides into place or if some tab holds it down. Dewalt Schematic Quote Link to comment Share on other sites More sharing options...
Spiris Posted May 7, 2009 Report Share Posted May 7, 2009 It looks like you'll have to split the case and access the motor/spindle ass'y and replace the brushes, but do look over the spindle where the brushes ride, for wear. It would be a shame to get it back together and still have a problem. Be sure it wasn't the outer windings of the motor that was smoking. Spiris Quote Link to comment Share on other sites More sharing options...
littlecanoe Posted May 8, 2009 Author Report Share Posted May 8, 2009 Thanks Spiris, I wanted to confirm this because I'm not that familiar with this assy. Looks like I have it to do. I'll make the checks you suggested and appreciate the help. lc Quote Link to comment Share on other sites More sharing options...
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