Chuck has no power dc925 hammer drill

Check the speed switch on top - sometimes it doesn't fully seat in the 1 or 2 position. Switch it to the opposite setting, run it, then switch back, until it seats properly. Also check the clutch control ring for the same issue.

if you have it clamped nice and tight it should no way do this. unless the handle is hitting the chuck.

Hello, W/D here.

To remove your chuck, open the jaws of the chuck fully, but don't open them so tight that they lock in the open position. Remove the screw inside the chuck. Spray the inside of the chuck with penetrating oil. Tap around the edge of the chuck, while pulling it away from the motor.
It should come right off, with a little effort.

Best regards, --W/D--

check the screw in the center of the chuck it could have come loose causing it not to lock properly.

Are you talking about the cap nut that threads onto the chuck? It is very rare that it would strip out. Word of warning if you do find one and thread it back on. You need to have a chisel in the chuck and have the chisel end locked in a vise. This protects from breaking the gear housing on the inside where the shift dog rides up and down.

Those parts are no longer available but you can still find some used on Ebay. Also the TE-72 used the same chuck parts.

When you buy a replacement chuck it will have detailed instructions- at least Jacob's brand chucks do. Basically there is a retaining screw inside the chuck that needs to come out first- it may be left-hand threads . Then you put the short end of a 1/4" or larger allen wrench in the chuck and close it tightly. Set the drill on a bench with the chuck off of the bench and strike the allen wrench with a mallet in a counterclockwise direction. Do this several times, then you'll be able to spin the chuck off by hand. Reverse the process to install the new chuck.

The dc925 and the current model dcd950 along with several other models of Dewalt 's line of cordless hammer drills DO NOT have a screw inside removal requires a CHUCK REMOVAL FIXTURE part #
233804-40 also you can't use a generic replacement chuck. As of 2/2/2010 the prices on the Dewaltservicenet web site are $72.74 for
the tool and $69.70 for the chuck, part # 330075-90.

try shifting the high/low switch to make sure fully engaged. Also make sure that all the other positions are correct and if so then you have a clutch problem. For a breakdown you can go to Dewaltservicenet.com and get a parts breakdown and list for this tool. Good luck and if I have answered your question would you please rate this response accordingly.

Check the motor if the motor has power and then the gears are not working. If the motor doesnt have any power then you need to check for power. To get at the gears you are going to need to remove the chuck