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DeWalt Hammerdrill - motor smoking

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Forum topic by KTNC posted 05-30-2020 08:27 PM 255 views 0 times favorited 3 replies Add to Favorites Watch
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KTNC

163 posts in 1028 days


05-30-2020 08:27 PM

Topic tags/keywords: drill hammerdrill smoking motor dewalt dw511

Hi Everyone:

Yesterday I used my DeWalt DW511 Hammerdrill to mix a 5 gallon bucket of floor resurfacer. After about 20 seconds it started smoking. I couldn’t stop so I kept mixing for about 4 minutes. The smoke got pretty intense as did my anxiety but the drill never stopped. I plugged it in today and it runs normally under no load.

I”m not sure what to do. Is the drill now dangerous so that I should throw it away? If I disassembled it could I tell by looking if it’s been totally ruined.

I’ve owned it for over 20 years, I think, and it’s had occasional use. I haven’t used the hammer feature very often.

thanks, Kerry


3 replies so far

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squazo

173 posts in 2417 days


#1 posted 05-30-2020 09:38 PM

I did that to a drill once 6 years ago, its still working.

View FirehouseWoodworking's profile

FirehouseWoodworking

777 posts in 4045 days


#2 posted 05-30-2020 10:08 PM

Could it perhaps been sitting in your shop untouched for a prolonged period of time?

If so, it may be nothing more than a built-up layer of sawdust on the brushes that started smoldering.

If that is the case, the remedy may be no more than opening it up and cleaning off the accumulation of sawdust and now, soot.

Cheers!

-- Dave; Lansing, Kansas

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KTNC

163 posts in 1028 days


#3 posted 06-03-2020 01:59 AM



I did that to a drill once 6 years ago, its still working.

- squazo

Hi Squazo:

Thanks for that! I googled it and found there are others who made the same mistake. What you need for mixing is a low RPM, high torque drill. I don’t plan on doing it very often, so I’ll just go back to hand mixing.

I stopped by a tool repair shop and explained what happened. After a brief chuckle, he explained that the drill I used is not the right tool for the job. He also said it’s not worth fixing because the repair cost is too high % of buying a new one. His final advice: If you aren’t getting shocked, you can keep using it until it dies.

regards, Kerry

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