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R&M 3500 Brushes  Rate Topic 
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 Posted: Sat Mar 14th, 2020 01:34 am
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Scott Marley
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Hoping someone has a large pile of these R&M 3500 Brushes that i could purchase a few of. Wondering if theses are all one piece, brush/spring/cap? Thks.




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 Posted: Sat Mar 14th, 2020 03:46 pm
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Jim Kovar
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Wow!, those are worn to a nub.

How does the commutator look?

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 Posted: Sat Mar 14th, 2020 04:30 pm
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David Kilnapp
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Did you try Darryl Hudson? I believe he has brushes.

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 Posted: Sat Mar 14th, 2020 10:11 pm
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Steven P Dempsey
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That's where I got mine

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 Posted: Sun Mar 15th, 2020 02:19 am
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Scott Marley
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Jim,
  I have not tried to remove the back yet, but it looks like it will need so serious cleaning. Just need to finish up the other two fans i am working on before i break this one down. Darryl did say he could make the parts i needed. I  just hate to ask for such a small part. i did have another member offer to help also, that is great. Really looking forward to starting in on this one though. My wife keeps asking when i will restore the fans that she can sell in her Antique booth. Guess i should tell her that mine and her intentions are not the same lol. 



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 Posted: Sun Mar 15th, 2020 10:09 am
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Lane Shirey
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McMaster also has some brushes. You just have to measure your old ones. 
But I’m sure Daryl won’t mind an order for one set of brushes.

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 Posted: Sun Mar 15th, 2020 01:42 pm
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Steven P Dempsey
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The original instructions call to use fine sandpaper to clean the commutator, while running! I did & it made a big difference

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 Posted: Sun Mar 15th, 2020 04:22 pm
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Don Tener
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When I need brushes like this I make my own out of larger ones that have the same size spring on the back. I just used 2000 grit sand paper to square it off the the right size and it is good to go.

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 Posted: Wed Mar 18th, 2020 11:51 pm
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Scott Marley
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Thanks all!   I received brushes in the mail from a fellow member. after installing them the fan works flawlessly. thought it was going to lift up off the table and fly away. on the (AC setting) that is. The DC setting was a little calmer.

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 Posted: Thu Mar 19th, 2020 02:12 pm
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Steven P Dempsey
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They prefer less than 120 volts, try a VARIAC POWERSTAT, etc at 90 volts or so

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 Posted: Thu Mar 19th, 2020 02:14 pm
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Steven P Dempsey
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ANd don't forget, the blades ahve copper flashing under the black paint!!Note 6 wire & 8 "S" wire versions.



Attached Image (viewed 57 times):

R&M3500 X2 back.jpg

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 Posted: Thu Mar 19th, 2020 02:16 pm
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Steven P Dempsey
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ANd the rear bearing is rotated a fer degrees on the 8 wire version (Later?)

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