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Wiring motors from 110 to 220

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Forum topic by MikeGraw posted 05-27-2010 07:36 AM 2388 views 0 times favorited 1 reply Add to Favorites Watch
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MikeGraw

21 posts in 2381 days


05-27-2010 07:36 AM

Topic tags/keywords: question

I am in the process of setting up my shop in the home we just purchased. I need to run wiring for all my equipment as the basement has only 2 outlets at the opposite end from where I will be having my shop. Since I am having to run new wiring I am planning on changing my ridgid table saw and grizzly 0555 band saw to 220 since they can run on both. I have read with interest a lot of the posts on this site some of which were quite long and detailed. It helped me understand more. I was also considering changing my Delta 1.5 hp dust collector also but will not at this time due to having only the 110 volt remote starter.

Tonight I needed to change the switch box on the dc as it got broken in the move and I was reviewing the wiring diagram inside the switch box incase I wanted to make the change 220. It is just a matter of changing two of the wires in the switch box that come out of the motor into the switch box. The four wires involved are 2 black wires and 2 red wires. The black wires are numbered 1 and 2, the red wires are numbered 3 and 4. Currently the 2 black wires are going to the same terminal on the switch. To make the change you take black number 2 and wire it to red 3. I should point out that red 3 and 4 are both going to the capacitor.

Here is my question. How do you know which of the black wires is one or two and which of the red wires is 3 or 4? Also, I don’t remember exactly how the drawing went, but would it mean that the black wire is just connected to the capacitor along with the red wire?

Grizzly and Ridgid make this much easier by describing the process in more detail in the manual and indicates the wire color to change. Delta’s manual and diagram in the switch box only uses numbers which leave me scratching my head.

I know there are some smart electrical people on this site from what I have read, so I hope someone can share some insight. Hopefully this is in the right forum as I just joined tonight and thought this looked like the right one.

Thanks

-- Mike's having fun in Central Wisconsin


1 reply so far

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TopamaxSurvivor

17654 posts in 3135 days


#1 posted 05-27-2010 09:28 AM

If they are not marked, it probably doesn’t matter. If it does the motor will probably go backwards, so just swap the 2 black wires. Welcome to LJ!!

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

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