I am hooking up an old (1957) Quincy air compressor I bought off craigslist. The tank was rusty and had water inside, so I got a newer one a buddy had lying around in his garage. Water pressure tested it up to 200 psi so good to go there.
Now I am wiring the thing up. It has the biggest 2 hp motor I've ever seen... can be wired either 110 or 220, and was 220 before so I'm keeping it that way. It will live just outside the garage under an overhang so I ran a 10 awg circuit from the garage subpanel to an AC disconnect box mounted on the outside wall, and then liquid tight to the motor.
Except there's no ground. Just two hots for the 220v. No ground screw I can see anywhere on the motor. What do I do with the ground? Throw a wire nut on it and call it a day?
Now I am wiring the thing up. It has the biggest 2 hp motor I've ever seen... can be wired either 110 or 220, and was 220 before so I'm keeping it that way. It will live just outside the garage under an overhang so I ran a 10 awg circuit from the garage subpanel to an AC disconnect box mounted on the outside wall, and then liquid tight to the motor.
Except there's no ground. Just two hots for the 220v. No ground screw I can see anywhere on the motor. What do I do with the ground? Throw a wire nut on it and call it a day?