Question about Dewalt DW999K 7/8" Cordless SDS Rotary Hammer

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Drilling slowly have a dewalt drill that when you pull the trigger is turning slower than usual full revs. Not cutting out or stopping, just a constant slower speed

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If the battery is OK then the problem will be in the variable speed trigger switch.

Posted on Sep 24, 2009

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1 Answer

My Dewalt DC925 works well but the torque settings don't seem to be working.when i am drilling screws the drill will just drill until i release the trigger.is this a clutch problem?. Many thanks.


Try to put it on the lowest torque and if it slips when wanted, then add a little more torque and check to make sure it slips. Continue at each torque setting and usually works again at full torque. Usually happens when left on the same torque all the time. This kind of resets it.

May 07, 2015 | Dewalt Drills

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Dw999 sds drill seems to run slow then if you keep pulling trigger runs faster then back slower thanks


A common failure item the switch is going bad. You need Dewalt part number 152274-19SV. They're not hard to replace but shop around the web for one, these switch usually run between $45 and $60 plus shipping.

Dec 27, 2011 | Drills

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Only full power for full trigger pull


I had same issue with Metabo hammer drill. It was faulty triggrer. Replace it and it shoul be fine.
Juraj

Jun 04, 2010 | Dewalt DW056 18 Volt Cordless Impact...

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BATTERY SHORTS WHEN YOU INSERT BATTERY


If it is new Nano Li-ion technology- try to fully charge battery, they work FULL power until they discharge, so they die instantly, NOT like Nickel batteries go slower till they die, so maybe that is only your first impression that it shorts...

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My hitachi drill is working funny


hi

try to charge the battery at full level and see what happens then.

regards savumihai71

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Black and decker cordless drill trigger


Ok, first check to see if the trigger lockout has been engaged, it's a small level at the top of the trigger ( I know this sounds silly, but it happens sometimes). Flip it side to side to see if you can hear the selector moving the switch inside the drill. If the selector moves freely without engaging the switch, you'll have to disassembly the drill housing to put the selector back into the lever so it will work.

Just take out all the screws in the housing and carefully remove the one side and look at the switch lever and make sure it is inside the slide selector lever.

If that isn't the issue, I'm afraid that the electric trigger/switch has failed and this isn't a part that can be disassembled and repaired by a DIY'er. I've attempted it when mine failed and found out it's a sealed unit and wrapped in a copper heat shield that dissapates heat when the variable speed is utilized and you end up destroying the switch housing in the process.

However, any DeWalt authorized repair center can do the repair for around $20 +/-, and if your drill is under the 3 year warranty period, it should be a free, warranty repair. Just contact DeWalt's customer service or your local Authorized Service Center (listed in phone book usually), or check the link for finding one near you.

www.dewalt.com or call 1-800-4-DEWALT (1-800-433-9258

Click on the "Services/Support" tab to get info. You can also buy the replacement parts if your drill is out of warranty (call them to verify before takin it apart!) and do the repair yourself.

Hope you find this Very Helpful and best regards!

Sep 08, 2009 | Black & Decker 1/2" 13MM, Heavy Duty Vsr...

1 Answer

How do you relase a drill bit from the chuck on a Dewalt cordless drill


opposite of the way you put it in. Grip the chuck and put the drill in reverse and turn the chuck. or hold on tight and pull the trigger.

Jun 07, 2009 | Dewalt 18 Volt Compact Drill Kit

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Inerting drill bit


holding the drill turn it to reverse hold the black area neer the nose of the drill and turn on the drill
when it openes insert the drill bitt and hold the area again and turn the drill to the right and turn it on holding the black area carefull not to hold the drill bitt in your hand when it turns it will cut you .

good luck

May 27, 2009 | Craftsman 19.2V C3 DRILL/DRIVER

1 Answer

Not spinning


Had the same problem figured out it was a wiring problem with the trigger, works good now.

Jan 15, 2009 | Dewalt DC900KL Heavy - Duty 36 - Volt...

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I have a 18V DeWalt cordless drill. I pull the trigger and get intermittent power. Is the switch going out?


It depends on what you mean by intermittent. If the drill takes a few tries to turn on, but works fine once it does, it usually means there's a problem with the switch. If the power is weak and tends to cut out, it generally means there's a problem with the motor - usually brushes. This article might clear things up a bit:

Whodunnt? The brushes or the switch?

You can get whichever part you need replaced on that same site.

Dec 28, 2008 | Dewalt 18 Volt Compact Drill Kit

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