Make sure the hidden microswitch is being activated when you pull the handle down, or it won't work. A bit hard to describe, but when you pull the handle down, you will see a lever move next to the brake drum. Attached to that is a small flat plate, that plate then goes up and presses the microswitch. Which will make the motor run. Mine was not contacting the microswitch and i had to adjust the plate to the right. I also have a wiring diagram not sure how to get it to you.