if you unscrew all the screws in the handle you still have to take off the gaurd - unscrew the screw on the base, then find the two holes either side, in the green handle - push something long into these, and the black gaurd should come out. This lets you get to one more screw in the handle. You need to unscrew the top half of handle first too, eventually this gets you to the motor - can't go much further than this, and you'll still need long nose pliers of somethign to get right in there between motor and wire holder.
Jon R, May 2010
