Originally Posted by
JoeJr
I have not yet read everything on the internet about vintage domestic machines (I'm still working on it), but I have not seen anything about grounding a machine. If you know enough about electricity, or know an electrician, maybe you can find out if it would be necessary or if there would be any benefits to doing so. The closest I've come to this is using a polarized plug on a 66 and making sure the light switch wire and motor switch wire (foot control) were connected to the black/hot wire on the plug. I have no idea if this accomplished anything, and I still do not leave plugged in any machine.
So on your 66 is the motor the only thing attached to the 3 prong terminal (male) and light and controller attached to the outlet? Assuming the wiring is the same as on 15-91.
I thought adding a ground would add extra security but I ended up using a RCD adapter to plug into. I am debating changing to a 2 lead tho. It feels odd having the motor, light and controller connected to the machine but not sure if that even matters as it is still just an alternating current at the end of the day, even plugged into the adapter I don't think that makes a difference. Half thinking out loud here.