SOURCE: dewalt dc920 repair instructions chuck
To remove the chuck on your drill follow the instructions for the type of drill chuck you have:
Instructions for removing a keyed chuck
Most reversing drills have a left hand threaded screw located inside the bottom of the chuck.
1.) If the unit has this screw place the chuck key, with the chuck facing toward you, into one of the holes on the right side of the chuck. Strike the key in a clockwise direction with a wooden mallet or similar object. This will loosen the screw inside the chuck.
2.) Open chuck jaws fully. Insert screwdriver into the bottom of the chuck to engage screw head. Remove screw by turning clockwise this is a left-hand screw.
3.) With the chuck facing toward you place the key into one of the holes on the left side of the chuck. Using a wooden mallet or similar object, strike the key sharply in a counter-clockwise direction. This will loosen the chuck so that it may be unscrewed by hand.
There is no way to stop the motor from turning.
It may require several attempts to loosen the chuck
Instructions for removing a keyless chuck
Most reversing drills have a left hand threaded screw located inside the bottom of the chuck.
1.) If the unit has this screw open chuck jaws fully. Insert screwdriver into the bottom of the chuck to engage screw head. Remove screw by turning clockwise this is a left-hand screw.
2.) Insert the short end of a 1/4" or larger hex Allen wrench into the chuck and tighten. Facing the tool strike the long end of the hex wrench sharply counter clockwise as it is a standard right hand thread. This will loosen the chuck so that it may be unscrewed by hand.
There is no way to stop the motor from turning.
It may require several attempts to loosen the chuck
SOURCE: Keyless chuck problem
I had the locking screw come loose in the center and bottom of the chuck it has a left hand thread and is a torx head . It had backed out and prevented the chuck from closing.
SOURCE: removing the dewalt DC925 'rohm' chuck
It should have a retaining screw as far as I know. It may be a torx head in this machine though. Normally left hand thread screw, then normal thread for the actual chuck. It's always worth tightening the chuck a bit before removing the inner screw as it can put pressure on it and make it harder to loosen.
SOURCE: how do you remove the chuck from a dewalt model
Please refer to page 4 of the pdf file available by clicking here
I hope this information allows you to resolve this issue.
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SOURCE: Having problem to remove chuck to replace it on dewalt dc988 18v
Inside the chuck is a left-handed screw. torx (star) T20. When you get it out, take an allen wrench and (if you can tighten it up at all, tighten the **** out of it). If not, find an allen wrench, a tiny bit smaller than the space allowed. Now, get a nice big hammer. The chuck is right handed thread. And knock it, spinning the chuck off the spindle. May take a few whacks. Use the edge of a workbench to keep it stationery if need be. Please rate me
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