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Forum topic by socrbent posted 06-12-2015 12:36 AM 741 views 0 times favorited 11 replies Add to Favorites Watch
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socrbent

419 posts in 1734 days


06-12-2015 12:36 AM

Topic tags/keywords: drill-driver

A XRP 18v Dewalt hammer drill 4-5 years old that I haven’t used for a couple of months had smoke coming out of the rear vents when it was used in to drill a couple of 1/4” holes in 5/5” particle board. Other than smoke it seems to sound and run OK. Any suggestions?

-- socrbent Ohio


11 replies so far

View Ghidrah's profile

Ghidrah

667 posts in 686 days


#1 posted 06-12-2015 01:49 AM

I’d open the case and look to see what might have crawled or fell in the vents

-- I meant to do that!

View bbasiaga's profile

bbasiaga

757 posts in 1459 days


#2 posted 06-12-2015 01:51 AM

Or try and blow th us out wih compressed air. Unless it is eletriacal smoke, which has a pretty distinct smell, I’ guessing it is just dusty.
Brian

-- Part of engineering is to know when to put your calculator down and pick up your tools.

View bigblockyeti's profile

bigblockyeti

3668 posts in 1185 days


#3 posted 06-12-2015 02:05 AM

Did the smoke come out as soon as you first started the drill or did it began after the motor was under load and generating heat? I’ve worked on a few of these and the switch along with the wires from the switch to the motor are the weak link. Most of the motors I’ve had to replace are from the cooling fans being busted from dropping them or getting a sheet metal screw or a nail stuck to the permanent magnets and sawing the fan off the armature.

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socrbent

419 posts in 1734 days


#4 posted 06-12-2015 02:07 AM

Smoke was almost immediate.

-- socrbent Ohio

View MarcusM's profile

MarcusM

57 posts in 2445 days


#5 posted 06-12-2015 02:09 AM

Or, if it’s smoking a lot maybe sticking a nicotine patch on it might help. :) JK

Mark

-- Tilbilly Mark

View socrbent's profile

socrbent

419 posts in 1734 days


#6 posted 06-12-2015 02:11 AM

ha ha – maybe i’ll just get a blanket and send a signal to Dewalt.

-- socrbent Ohio

View Luthierman's profile

Luthierman

157 posts in 551 days


#7 posted 06-12-2015 02:30 AM

Check your brushes for excessive wear.

-- Jesse, West Lafayette, Indiana

View bigblockyeti's profile

bigblockyeti

3668 posts in 1185 days


#8 posted 06-12-2015 12:18 PM

If the smoke was immediate, it seems more likely that the it is dust related as opposed a function of the motor, wiring or switch overheating. Did the smoke persist or stop after a few seconds? Another thing I’ve seen happen is the carbon from the brushes being smeared between the bars of the commutator effectively shorting the motor. This can sometimes be cleaned, but is done much easier with a motor that can be disassembled.

View JuniorJoiner's profile

JuniorJoiner

463 posts in 2904 days


#9 posted 06-12-2015 12:29 PM

i had the same drill and the same issue, i brought it to a repair shop which told me the fix was more expensive than the drill. as i had found the chuck wearing out on mine anyway, my solution was to replace it with a festool drill.

-- Junior -Quality is never an accident-it is the reward for the effort involved.

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socrbent

419 posts in 1734 days


#10 posted 06-12-2015 01:20 PM

Thanks for the responses. The dirty commutator looks like the cause at this point. The case opened easily. Hope it is as easy to re-assemble. A you-tuber video shows the same model smoking. He cleaned the brushes and commutator and all was well. I’ll clean it this evening and see if that helps.

-- socrbent Ohio

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socrbent

419 posts in 1734 days


#11 posted 06-13-2015 07:19 PM

Opened case, removed brushes and motor, cleaned brushes and commutator area, cleaned between sections on commutator, used thin strips of 400 grit sandpaper to clean surface of commutator, reassembled and it seems to work with no smoke.

-- socrbent Ohio

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