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Re: Replaceing chuck on a Dewalt Dw511 1/2" hammer drill.
Open the chuck jaws and you will see a screw in the center of chuck, it is left hand thread. remove it and use a large bent handle allen wrench putting the short portion in the jaws and tightening. Shift the drill to the low position and have the clutch in the drill only position. place the handle of the wrench at about a 30 degree angle to strike it counterclockwise. put the chuck on a block of wood or workbench and hit it, this might take a couple times but it will come off. Let me know if you still need help
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It depends on what model but there held by eighter a screw or on x shaped fasiner in the center of the chuck open it up as far as you can hold the chuck in a vice and remove the screw and the chuck should come off
Place drill in vice with chuck in vice facing up . Clamp chuck lightly but with enough force to hold firmly. put allen wrench in chuck and lightly tap down to make good fit to allen screw head.Clamp chuck jaws down onto allen wrench lightly to hold wrench steady. Take piece of pipe to end of wrench,10". These chuck screws are tight. Hammer clockwise until screw brakes loose.Open chuck completely and remove screw.Chuck is threaded to spindle shaft . Place allen wrench with long end facing out of tool in chuck and tighten chuck securely. With hammer tap allen wrench sharply counter clockwise ( normal thread.)
open the chuck all the way, insde there may be a screw in the bottom it's lefthand thread turn it clockwise to remove, the chuck is also threaded, right hand thread. close the jaws on the short end of an allen wrench and strike the long end with a hammer to break it free
Most hand-held drills have chucks that screw onto the shaft with a right-hand thread. Reversible drills lock the chuck in place with a left-hand threaded screw inside the chuck. To remove this screw, open the jaws of the chuck all the way and use a screwdriver to back out the screw (turning it clockwise, of course, to loosen it).
The easiest way to get the chuck off, once the screw is out, is to chuck the short end of a large Allen wrench into the drill, run the drill backwards at low speed, and let the long end of the Allen wrench bang into a concrete floor or a 2x4 or something until you hear a pop and the chuck just screws off. The impacts seem to loosen stuck threads very well.
The problem with my drill was that my clutch was damaged and I couldn't get enough of an impact to loosen the threads. I had to get to the clutch before I could get to the chuck.
HOPE THIS HELPS!
I simply placed the chuck into a large vise and turned the drill counter clockwise and the chuck spun right off no problem without damaging anything!! It does have some thread lock on the chuck but just use your man strength and its as simple as turning the lid off the pickle jar! Do not waste your time or money with the removal tool...YOU DONT NEED IT!
Had the same problem on mine. Remove the chuck, then remove the snap ring on the back of the chuck( carefull, the housing will fall out once the ring is removed), on the side of the chuck you'll find a cam and small odd shaped spring held in by two cylender pins, on mine the spring had a gap in it and I just spread the gap to about twice the size in was and put everything back together and it has worked fine ever sence. Hope it works for you.
The chuck is held onto the drive shaft via screw located inside the chuck. The screw has reverse threads and sometimes the screw gets loose restrictinhg the chuck tightening. Turn the chuck to loosen and tighten the screw as though you were removing a normal screw. Good luck
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