While you wait for answers, we may have found some information which could help you.
Click here for Motor Decker Cuthow do i reassemble black and decker gt100 hedge trimmer?
How to repair black and decker hedge trimmer?
Works intermittantly?
Cut cable, replaced cable -> still nothing?
I rewired a cable on a hedge trimmer a a new fuse but it still won't work?
how to repair Black and Decker GT250 (41cms) hedge trimmer?