Hi I'm trying to wire up a 1 1/2 hp 115/230 volt vintage motor and don't know where the elecatrickery goes .It's a model 551-1940. I'd like to wire it for 115 initially so I can just throw a plug on it and see if it's ok . If it is then I'll wire it 230 to install it on the machine when I get that setup. And some pics.bottom left of first pic is 115volt diagram( flash was on) thx in advance!!