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Forum topic by Kwoods posted 07-09-2018 10:42 PM 509 views 0 times favorited 8 replies Add to Favorites Watch
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Kwoods

9 posts in 380 days


07-09-2018 10:42 PM

Topic tags/keywords: tablesaw

I have a Unisaw from 1968 that has a Marathon Electric 1 1/2 hp, 3500 rpm motor. The model number is 83-621. The wiring diagram on the motor is not there. Does someone have the same motor or a diagram of one that I can have?


8 replies so far

View Knockonit's profile

Knockonit

586 posts in 622 days


#1 posted 07-09-2018 11:30 PM

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Kwoods

9 posts in 380 days


#2 posted 07-13-2018 11:05 PM

Thanks, but I still can’t find the exact diagram. Is it there, or did you just send me a site and hoped that it would be?

View MrUnix's profile

MrUnix

7405 posts in 2619 days


#3 posted 07-13-2018 11:25 PM

Check this thread out:

Unisaw wiring diagram dual voltage motor

In it, I posted a couple data plates for the 83-621, but from different vintages, so they may have been made by a different manufacturer and not entirely accurate for your motor. Can you post a close-up picture of your motors data plate? The wiring diagram should have been on it in the red portion that looks like it’s been painted over. If so, you may be able to throw it into some image processing program and enhance it enough to make out what was there. I’ve been able to recover completely unreadable diagrams before, provided a high-quality image could be obtained.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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Kwoods

9 posts in 380 days


#4 posted 07-14-2018 07:48 PM

Thanks, but those plates aren’t the right ones for my motor. Every motor that I’ve seen has a diagram for colored wires. Mine are all black and just have numbers on them.

View Fresch's profile

Fresch

434 posts in 2341 days


#5 posted 07-15-2018 01:08 PM

High (240v) (ccr) 2,3,8 wire nut
4,5 to one hot wirenut, #1 to other hot wirenut
(cr) 2,3,5 nut, #1 hot, 4,8 nut to other hot

Low (120v) (ccr) 1,3,8 nut to hot, 2,4,5 nut to other hot
(cr) 1,3,5… 2,4,8

But This could be wrong as some people know more than I do, use it at your own risk.

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Fresch

434 posts in 2341 days


#6 posted 07-15-2018 01:09 PM

High (240v) (ccr) 2,3,8 wire nut
4,5 to one hot wirenut #1 to other hot wirenut
(cr) 2,3,5 nut, #1 hot, 4,8 nut to other hot

Low (120v) (ccr) 1,3,8 nut to hot, 2,4,5 nut to other hot
(cr) 1,3,5… 2,4,8

But This could be wrong as some people know more than I do, use it at your own risk.

View Fresch's profile

Fresch

434 posts in 2341 days


#7 posted 07-15-2018 01:12 PM

High (240v) (ccr) 2,3,8 wire nut
4,5 to one hot wirenut #1 to other hot wirenut
(cr) 2,3,5 nut, #1 hot, 4,8 nut to other hot

Low (120v) (ccr) 1,3,8 nut to hot, 2,4,5 nut to other hot
(cr) 1,3,5… 2,4,8

But This could be wrong as some people know more than I do, use it at your own risk.

View Kwoods's profile

Kwoods

9 posts in 380 days


#8 posted 07-15-2018 01:24 PM

How did you get this info? And thanks!

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