chuck repair for black & decker electric drill?

can i change my keyless chuck on my kr70 b/d to a key chuck

dave
July 2013

Mine has a Torx head screw, not an allen.
Can't get it loose.

Greg
February 2011

Drill runs backwards - either you have it switched to reverse or you have wired the plug incorrectly.

BigEd
January 2011

I tried the method of trying to detach the chuck with the chuck key and hammer but it was far too slack to get a good purchase. Definitly a better way was to use an Allen Key tightened into the chuck with the long leg outwards then give it a sharp blow in the direction opposite to drilling, this worked a treat.

Norman Frost
July 2010

Worker perfectly first time. Thanks

Richard Knight
July 2010

open chuck fully and remove the screw at the bottom of the chuck then put the key in the chuck and give it a sharp smack with the hammer the chuck should the screw out

john
April 2009

large allen key, lock in chuck and whack it with lump hammer

j d
December 2008

The instructions for a B&D 1/4" (price was right) replacement on how to replace chuck:
1. Unplug drill before changing chuck.
2: Open chuck as far as possible.
3: Check to see if a retaining screw is inside chuck. If so, remove screw in a clockwise direction (left-hand thread).
4: If no retaining screw, insert key into chuck and rap key sharply in a counter-clockwise direction.
5: When chuck loosens, unscrew it. Screw on new chuck.
6: Open chuck as far as possible and replace screw.
7: Chuck must be securly attached to drill.
8: Remove key from chuck before operating drill.
9: Make sure that drill bits or other attachments are securly locked into chuck by tightening all three pilot holes.

That worked for me. There was no screw, and I had to rap a couple times before it loosened. Too bad that wasn't the drill that needed a new chuck, but now I have a 3/8 chuck to put on the one that does (Sears Craftsman ca. 1976) if I can get that one off. The B&D? It's got other problems: only runs backwards.

Tom Gloger
November 2007