I have a new to me Bader III with a DC motor (factory) and a Baldor BC154 control. It was set to run on 220 when I bought it but I've changed it to 110 with the help of the Baldor manual. The issue is it runs on at a low speed when the speed control is at the lowest setting. If speeded up then turned down it stops for a moment then runs again. Reading the manual I don't find a trim pot to adjust. Or more likely I have no idea what to look for because it's like all greek to me. I'm looking for help, thanks in advance.