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Flipping a jointer motor around - rewire?

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Forum topic by Tony1212 posted 01-07-2016 04:07 PM 532 views 0 times favorited 8 replies Add to Favorites Watch
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Tony1212

111 posts in 1198 days


01-07-2016 04:07 PM

Topic tags/keywords: electric motor jointer wiring rotation direction

I inherited a tablesaw/jointer cart that my grandfather made a long time ago. He mounted the jointer motor right underneath the tablesaw. In the picture below, the jointer is to the left of the belt.

I’m planning on making a new cabinet that will hold both of the tools plus a router table, but I’d like the jointer motor to be more accessible in case it needs servicing – ideally under the jointer itself (I plan on having a ramp that will move shavings to a dust collector port so no shavings will fall on the motor). However, putting the motor under the jointer will flip it around and cause the knives to spin the wrong way.

Can I rewire the motor to spin in the opposite direction? Here’s a close-up pic of the actual motor, in case that helps.

-- Tony, SW Chicago Suburbs


8 replies so far

View TheFridge's profile

TheFridge

5765 posts in 950 days


#1 posted 01-07-2016 04:21 PM

For reversing, interchange yellow leads in terminal box.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View Bluepine38's profile

Bluepine38

3341 posts in 2549 days


#2 posted 01-07-2016 10:44 PM

When you move the motor why not just slide it over and move the pulley to the shaft on the other
end, no need to rewire, the shafts are the same diameter.

-- As ever, Gus-the 77 yr young apprentice carpenter

View ohtimberwolf's profile

ohtimberwolf

634 posts in 1816 days


#3 posted 01-07-2016 11:13 PM

Bluepine38, you lost me on that one. Now I have to watch this post to see what I’m missing. No dig intended, just that I’m a bit confused. larry

-- Just a barn cat, now gone to cat heaven.

View MrUnix's profile

MrUnix

4225 posts in 1663 days


#4 posted 01-07-2016 11:17 PM


Bluepine38, you lost me on that one. Now I have to watch this post to see what I m missing. No dig intended, just that I m a bit confused. larry
- ohtimberwolf

No wiring involved. Can’t tell by the picture, but you might need to move the motor the other way than shown.

Cheers,
Brad

-- Brad in FL - To be old and wise, you must first be young and stupid

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ohtimberwolf

634 posts in 1816 days


#5 posted 01-07-2016 11:30 PM

Wont the pulley still be turning in the same direction regadrless of what end it is put on? larry

-- Just a barn cat, now gone to cat heaven.

View MrUnix's profile

MrUnix

4225 posts in 1663 days


#6 posted 01-07-2016 11:35 PM

Wont the pulley still be turning in the same direction regadrless of what end it is put on? larry
- ohtimberwolf

Yup, that was the intention I and I guess bp38 were thinking you meant. If you want to leave it mounted on a shelf like it is, that is. If you want to mount it upside down, then just swap the wires like Fridge said and either leave the pulley where it is or swap it to the other side depending on how you mount it. And actually, you probably don’t even need to do that, just turn the motor around (pivot 180 degrees) so the badge faces the other way.

Cheers,
Brad

-- Brad in FL - To be old and wise, you must first be young and stupid

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ohtimberwolf

634 posts in 1816 days


#7 posted 01-08-2016 03:10 AM

Ok guys, I went back and re read what it was that he was wanting to do and I didn’t understand it the first time. I see now it is a simple fix and not what I thought he was trying to do. I should have paid more attention to his details. Thanks for straightening me out. :) larry

-- Just a barn cat, now gone to cat heaven.

View Tony1212's profile

Tony1212

111 posts in 1198 days


#8 posted 01-08-2016 08:11 PM

<Slaps forehead>

I’ve always wondered why there was a shaft sticking out the other side of some motors. My father always said I make things more complicated than they are.

Brad’s picture is very much what I want to do. I will be replacing the metal cart with some wood cabinets and casters. My grandfather was quite a bit shorter than me, and my back is already bad. I need everything higher.

-- Tony, SW Chicago Suburbs

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