Need wiring diagram for electric drill

David Nebenzahl · 2006-12-01T22:04:57+00:00

This is so simple, I feel kind of foolish posting it, but here goes:I need a wiring diagram for my garden-variety 3/8" variable-speed reversible drill. (It happens to be a Craftsman, but is the same as hundreds of other similar tools.)Years (decades, actually) ago I replaced the speed control which I got from Sears. The drill has worked since, but not correctly, so evidently I screwed up when I put it back together. I think I had to resolder some wires to the reversing switch, which is where I think the problem is.Here's the deal: it works, but not like it used to. At slow speeds, it feels like it's "chugging" or cogging. No sparks from the brushes. At medium speeds it runs a little smoother with minimal sparking, about what you'd expect. At high speed, it runs with a lot of sparking, more than it should.The commutator is in good condition: I cleaned it and scraped out all the built-up crap between the contact bars. Brushes are in good shape. Field and armature coils are all good (tested with ohmmeter).So I'd sure appreciate it if someone could post a (link to) a wiring diagram for this tool. Like I said, any similar variable-speed reversible consumer-quality drill will do.Please resist the urge to post if you want to tell me* to buy a new tool (this is my favorite drill)* I ought to learn a whole lot more about electricity* I should leave this kind of repair to "professionals"* I should have noted the wiring when I first opened it up.

Dec 01, 2006 21 Replies

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propman 19 years ago

David Nebenzahl wrote in news:4573b83b$0$5803 $ snipped-for-privacy@news.adtechcomputers.com:

See above.......and apply.

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ED 7 years ago

replying to tom________, ED wrote: Tom I am reading this 13 years after you wrote it and you are probably still an asshole.

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