if its the dd2413 there's a screw hidden underneath the cable retract button. Pop out the button get that screw, remove the on/off button shroud, it also pops off, then theres another screw under that shroud in the middle, way down a tube (about 10cm). It'll practically fall apart after that. DON'T LOSE THE SPRINGS FROM THE BUTTONS!!!
facecutter, August 2011