Dewalt 825 impact how to use - Dewalt DW056 18 Volt Cordless Impact Driver - 1/4" Drive Hex Shank (Battery Charger and Case Not Included) - Tool Only

Yes they do, but did you keep a copy of them?

Where is the DEWALT® serial number on my cordless tool?

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Mar 8, 2017 - Traditionally, serial numbers for DEWALT cordless tools have been located on the ... Just below the QR code is the serial number for this drill.

The high-speed motor of DEWALT DCK299P2 Hammerdrill & Impact Driver Combo Kit gives you great power and precision. You can switch through three different speeding options from 0 to 2000 RPM. It provides you the access to all metal transmission. You can increase the speed with the impact driver to a maximum of 3600 RPM.

Mick, this could be a sign of a worn out/faulty motor, mine did this, ripped it apart and it was the motor. Yours may still be under 3 year warranty if you can find your receipt.
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DeWALT DCF885C2 Type 1 20V Impact Driver Parts
http://www.mmtoolparts.com/store/dewalt-impact-driver-parts
http://www.dewalt.com/en-us/legal/warranty/general-warranty-information
DEWALT ServiceNet

I think that model is on a ring internally so there isnt a way to do like the bigger ones, you would have to take the screws out and take in half and you will the the brushes and can replace.

You can get the manual on the link below. Upper right corner next to the tool.
http://servicenet.dewalt.com/Products/Detail/DC825B

If it is on hammer setting this is normal. My dewalt is much growlier than my other drills. (worx, sparky and matika.)

hi atlas cop co supply and service all dewalt they have a webb page and are based inhemel hempstead hertfordshire england they also have an help desk hope this helps

I have fix my dewalt dw 056 with a switch comming from an old dewalt hammer drill that i had lying around if you find and older dewalt hamme drill with burn brushes u can interchange the switch ,they sell the repalcement new switch for around $56.00 here in canada its not worthed u can get a new refurbish dewalt impact for around $99.00 from toolking

if you use it every day, it would be normal for the battery to be at the end of its life. ni cads are usually good for 300 charges/discharges