While you wait for answers, we may have found some information which could help you.
Click here for Drill Battery Faulty
How to change a Twist chuck on a B & D 4300 drill?
electric drill stuck chuck?
B & D hammerdril stopped working ?
how to get a drill bit out of a keyless chuck?
how do I remove the chuck head ?
how can I fix my black & decker kr600cre drill?