Need a little help trying to figure out this electric switch. I'm about 90% finished with the restoration. I'm not sure what the original motor was or who the manufacturer was. When I bought the machine it had an old motor rigged up to it with pipe straps. It had 3 wires coming off of it. My assumption is one for ground, one plus and the other neg. I found an older motor that bolts right in. It only has 2 leads. I have several questions. Does this switch have some kind of safety mechanism built into it. I'm wondering what the purpose of the coil is for (on the right side in the pic on the base of the box). How would I safely wire this back up?



