Question about Dewalt DC920KA Heavy Duty Xrp 18V Cordless Drill/Driver

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Stuck ON! trigger is stuck

Simple as that. this drill is a little over 2 years old, and I have to pull the battery to shut it off. it stuck for a second or two the first couple times, and now it's stuck permentantly. Squirted some WD40 around it, did some typical banging on it, tried to futz with the direction switches, the speed, etc. nothing.

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  • tyssniffen Oct 27, 2008

    Sorry, good question. The trigger is staying in. Since posting, I have gone to the hardware store and gotten the propert torque wrench bit to take the drill apart, and on first go 'round, it just seemed that there was gunk throughout that was holding it back. I cleaned it somewhat (I was hurried, unfortunately) and it started working - ie popping in and out, turning on and off properly.

    Back on the jobsite today, it started sticking on again. I do intend to go back more slowly and clean it better, but sheesh! I don't seem to see any other problem... and just dust holding the trigger on? that doesn't make sense.


  • Stuart
    Stuart May 11, 2010

    is the actual trigger jamming in the machine, or the machine still running when the trigger comes back out?


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The only time I have seen a persistant problem like this before is when there has been a slight defect in the housing or switch. It works ok for a while, and then gets a bit scored up and that is when it usually starts to stick. You could try a bit of emery cloth/fine glass paper on the housing area that the switch button slides through. Also, when cleaning, a good thing to use is brake/carb cleaner as it evapourates quickly and is generally non conductive. It will get rid of a lot of grease, but most switches have a small amount of grease inside to stop the contacts furring up, so always make sure you spray a bit of wd-40 or someting down the switch slider shaft afterwards.

Posted on Oct 27, 2008

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