I am going to fit a new impeller to my Black & Decker Leaf Sucker/Blower (GW250), and need to know which way to turn the retaining nut to release it (Anti-clockwise for normal thread or Clockwise for left-handed thread).
I expect it to be left-handed so that the rotation of the motor keeps the nut tight, but do not want to strip the thread by getting it wrong!

Arthur, October 2015