by mitch321 »
Thu Mar 21, 2013 12:08 pm
This is something i've come across before and eventually i resorted to taking the tool into a local power tool repair shop for it to be fixed. I did however ask them how they removed the damaged retaining screw.
My drill was a cordless model fitted with a keyless chuck. The staff told me that their fitter had first inserted a large allen key into the chuck, they then tightened the chuck onto the allen key as if it was a drill bit, the chuck (with the key still inside) was then clamped into an engineering metal working vice.
They clamped the "rear" part of the chuck in the vice - not all of it. The fitter then struck the end of the allen key hard with a soft plastic faced mallet, after several goes this sheared the head of the retaining screw off. They then extracted the remaining portion of the screw with a mole type wrench and the chuck was unscrewed off the drills spindle.
One new chuck and a new retaining screw later - and i was sorted.
I hope this helps?