Got this bench grinder with stand the other day. It's a Dayton 3/4HP 8" grinder wired. It's wired for 220/440v. Model number is 4Z910C or 2LKT1 (according to Grainger's website).
Here's the problem. It's wired for 220V. I plugged it into my 220V 30amp outlet and flicked the switch on. At first it wouldn't turn, but no humping noise. I turned it off, then pinned the wheels by hand and confirmed they spin freely. Flicked it on again and it started spinning but at a very low speed and the housing was getting increasing and oddly very warm to the touch.
I have since dissembled it and see that the bearing are ok, but should probably be replaced. It still turns smoothy but looks a little dirty and a slightly rusty. I thought it must be a capacitor issue, but I was surprise to see this machine does not have a capacitor. The wiring is extremely simple and lots of wires. All are connected tightly and correctly according the owner's manual for 220v.
The only other thing I could think of is the switch. Grainger calls it a Toggle Switch 3-Phase as are charge $80 for it. Before I order the switch, I figured I would get some advice from you all. What do you think? See attached photos.
Here's the problem. It's wired for 220V. I plugged it into my 220V 30amp outlet and flicked the switch on. At first it wouldn't turn, but no humping noise. I turned it off, then pinned the wheels by hand and confirmed they spin freely. Flicked it on again and it started spinning but at a very low speed and the housing was getting increasing and oddly very warm to the touch.
I have since dissembled it and see that the bearing are ok, but should probably be replaced. It still turns smoothy but looks a little dirty and a slightly rusty. I thought it must be a capacitor issue, but I was surprise to see this machine does not have a capacitor. The wiring is extremely simple and lots of wires. All are connected tightly and correctly according the owner's manual for 220v.
The only other thing I could think of is the switch. Grainger calls it a Toggle Switch 3-Phase as are charge $80 for it. Before I order the switch, I figured I would get some advice from you all. What do you think? See attached photos.