HOW TO REMOVE CHUCK

[ED]

I have removed the inner screw but how do you remove the rest of the chuck? I am trying to replace it because it won't tighten anymore.

[Cliff]

Get the biggest Allen wrench you can fit in the chuck and insert it with the long arm out. Set the clutch to drill and the transmission to low gear. Set the drill on a solid surface. Wack the Allen wrench a few times with a hammer so it turns the chuck in a counterclockwise direction looking at the front of the drill.