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Old 05-20-2013, 01:53 AM   #1
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Wiring Dayton 2ryn7 Motor


I have a Dayton belt sander. Model number 2ryn7...

I am trying to wire it to 120vac

I have the following wires from the motor with the following numbers on them:

1 - Black
2 - Grey
3 - Red
4 - Yellow
Blue (no number)

There is a capacitor with two wires...

Then obviously I have the incoming hot/neutral/ground wires...

Could someone please help me with the wiring to make this spin the normal direction. Thanks so much!

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Old 05-20-2013, 06:49 AM   #2
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Wiring Dayton 2ryn7 Motor


"Trying to wire it to 120vac?" What voltage does it run on now?

Dayton is a W.W. Grainger house brand. Maybe you could try calling their customer service department.

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Old 05-20-2013, 10:44 AM   #3
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Wiring Dayton 2ryn7 Motor


Graingers web site says it 120/240. http://www.grainger.com/Grainger/wwg...rue&sst=subset

OP. Look at the motor nameplate either on the outside or maybe on the inside of the connection box cover for the low voltage connection wiring diagram.
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Old 05-20-2013, 11:03 AM   #4
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Wiring Dayton 2ryn7 Motor


It was wired to 120 but was taken apart. Also there is no diagram on the motor anywhere. Now I can't seem to get the right wire combo to get it to spin...
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Old 05-20-2013, 07:46 PM   #5
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Wiring Dayton 2ryn7 Motor


I'm kinda guessing here, as the colors don't match the industry standard numbers, but here goes;

I suspect this motor is 115/230 and not reversible.

If so, the incoming hot goes to 1 (Black).

The incoming neutral goes to both 2 (Gray) and 4 (Yellow).

Blue splices to 3 (Red).

The above is for 115 volts.

Rob
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Old 05-20-2013, 07:50 PM   #6
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Wiring Dayton 2ryn7 Motor


Quote:
Originally Posted by micromind View Post
I'm kinda guessing here, as the colors don't match the industry standard numbers, but here goes;

I suspect this motor is 115/230 and not reversible.

If so, the incoming hot goes to 1 (Black).

The incoming neutral goes to both 2 (Gray) and 4 (Yellow).

Blue splices to 3 (Red).

The above is for 115 volts.

Rob
I got all of that. Could you detail a little more on how the capacitor wires into the motor. It has two wires coming from it...
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Old 05-20-2013, 07:59 PM   #7
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Wiring Dayton 2ryn7 Motor


If the capacitor is not connected inside the motor, don't hook it up the way I described.

I need to know if the motor is thermally protected or not. This makes a difference where the blue wire goes.

Rob
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Old 05-20-2013, 08:35 PM   #8
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Wiring Dayton 2ryn7 Motor


Quote:
Originally Posted by micromind View Post
If the capacitor is not connected inside the motor, don't hook it up the way I described.

I need to know if the motor is thermally protected or not. This makes a difference where the blue wire goes.

Rob
How would I figure that out?
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Old 05-20-2013, 11:30 PM   #9
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Wiring Dayton 2ryn7 Motor


Look on the nameplate. If it states 'thermally protected', then it is. If there's nothing, then most likely it's not. It might also state 'thermally protected', and have a box that states 'not' next to it.

If it's not protected, and the capacitor is mounted in the terminal box and its two leads are not connected to anything, try this connection.

Note, this is not an absolute correct answer, it's based on my knowledge and experience with motors, nothing else.

Connect the blue lead to one of the capacitor leads. It doesn't matter which one.

Connect the incoming hot wire to both 1 and 3.

Connect the incoming neutral wire to 2, 4, and the other capacitor lead.

If it just hums and doesn't turn, remove the capacitor lead from 2 and 4, and connect it to 1 and 3.

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