South Bend wiring! - practicalmachinist South Bend wiring! I am having trouble wiring my new Lesson 1/4 hp motor to my south bend 9" lathe which has a Furnas drum switch on it. If anyone could point me in Wiring diagram for a South Bend 9A | The Hobby-Machinist Wiring diagram for a South Bend 9A. Thread starter cwleveck; Start date Jan 3, 2018; Tags I don't think I changed anything but for a short time I kept the lathe in a friend's garage and he said something about Motors off the motor to see whether or not it's working and then work my way forward to the drum switch if I can get a wiring lathe drum switch wiring - The Home Machinist! Hi All, I'm in the process of reassembling a SouthBend 9" lathe that I purchased in pieces. It came with a motor, but not a switch. A quick trip to Graingers, and alas, I came home with a Dayton drum switch. Here are a few pics of the motor wiring, and the diagram from the inside of the switch. Can anyone here make any heads or tails of this?