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Emerson Centrifugal Switch repair  Rate Topic 
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 Posted: Sat Feb 11th, 2017 06:20 am
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Don Tener
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I just want to say first it is going to be a while until this fan is finished. But I started with the Centrifugal switch. It had a large groove in it from ware. So it was ether replace or fix it. I decided to try and fix it. This is what I did.
     I took some 14 gauge house wire and soldered it into the grove with a torch. Then I used a Dumore hand grinder to get rid of the excess. Then used some 2000 grit sand paper on it and I think it will work, We will see :wondering:








 








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 Posted: Sat Feb 11th, 2017 06:26 am
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Jeff Whitfield
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FWIW, I think you did a good job. :up:

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 Posted: Sat Feb 11th, 2017 06:30 am
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Don Tener
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Thanks Jeff. I hope it will last another 100+ years :D

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 Posted: Sat Feb 11th, 2017 06:36 am
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Matthew Albach
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Don,
You done a excellent job. However, how deep were the holes? Was the centrifugal blade not making contact ?

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 Posted: Sat Feb 11th, 2017 06:41 am
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Don Tener
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Matthew Albach wrote: Don,
You done a excellent job. However, how deep were the holes? Was the centrifugal blade not making contact ?
They where very deep, Almost all the way through. That's why I decided to fill them now before it cut it in half.

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 Posted: Sat Feb 11th, 2017 07:46 am
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Andrew Block
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Jay Bernard did the same with a piece of copper pipe on an Ilg that the contacts had completely worn through. Apparently they were copper plated tin. We assume either the fan had a severe schedule of on/off (it came from a house so I assume it was only used when needed and not left on all the time) or that the fan was constantly "windmilling" in a window which spun the blade against the contacts, never reaching velocity for them to release. 90 years of that would definitely wear down the race.







Last edited on Sat Feb 11th, 2017 07:51 am by Andrew Block

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 Posted: Sat Feb 11th, 2017 09:00 am
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Don Tener
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Andrew Block wrote: Jay Bernard did the same with a piece of copper pipe on an Ilg that the contacts had completely worn through. Apparently they were copper plated tin. We assume either the fan had a severe schedule of on/off (it came from a house so I assume it was only used when needed and not left on all the time) or that the fan was constantly "windmilling" in a window which spun the blade against the contacts, never reaching velocity for them to release. 90 years of that would definitely wear down the race.







This is why I did mine now. I didn't want that to happen. He did a great job fixing that ILG. I am glad to see another way to fix it if it gets worse. Also I like that I can keep the original parts.

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 Posted: Sat Feb 11th, 2017 03:38 pm
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Darrell Koller
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Thanks Don,

I've got one that I'll be trying the same thing on.


---Darrell

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 Posted: Sat Feb 11th, 2017 03:55 pm
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George Durbin
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Hi Don!
Did you silver solder the copper wire into the groove or soft solder?

Geo...

Last edited on Sat Feb 11th, 2017 03:55 pm by George Durbin

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 Posted: Sat Feb 11th, 2017 04:20 pm
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James Erwin
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Nice work!

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 Posted: Sat Feb 11th, 2017 05:12 pm
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Dan Foley
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Very nice work, Don! I also think it's ideal to keep the original parts for a fan whenever possible.

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 Posted: Sat Feb 11th, 2017 05:49 pm
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Don Tener
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George Durbin wrote: Hi Don!
Did you silver solder the copper wire into the groove or soft solder?

Geo...
I just soft soldered it. I didn't want to get the switch to hot and I think it will be strong enough.

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 Posted: Sat Feb 11th, 2017 05:53 pm
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Don Tener
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Thanks for the nice comments. I also forgot to say that I did this one side at a time with 2 separate pieces of wire bent just right to fit the groove.

Last edited on Sat Feb 11th, 2017 05:54 pm by Don Tener

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 Posted: Sat Feb 11th, 2017 10:59 pm
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Chris Benbow
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Nice job Don!
Glad to see someone execute this idea so nicely. The biggest question is whether the soft solder areas will get dug out by the contact plates. I think not as they look pretty narrow.

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 Posted: Sun Feb 12th, 2017 04:32 pm
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Matthew Albach
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I think if you smooth the ruff areas out the switch plate
Will not dig into the switch socket. The smooth surfacee will prevent that.
Can smooth out the half moon plates out as well no ruff edges on either
should be a smooth operation.

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 Posted: Fri Feb 17th, 2017 04:26 am
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Don Tener
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Finished the switch repair. I used some plastic washers I had and they worked great. Here is the before pics.






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 Posted: Fri Feb 17th, 2017 04:27 am
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Don Tener
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And After




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 Posted: Fri Feb 17th, 2017 04:29 am
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Don Tener
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The original stator had a dead short so i replaced it with one I got from Stan goods estate. So now the fan runs great :clap: It only takes abut 2 seconds for the switch to disengage.

Last edited on Fri Feb 17th, 2017 04:31 am by Don Tener

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 Posted: Fri Feb 17th, 2017 09:50 pm
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Matthew Albach
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Don,
I have the washers for that switch I can bring some tomorrow
At the fan show ?

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 Posted: Fri Feb 17th, 2017 10:01 pm
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Don Tener
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Matthew Albach wrote: Don,
I have the washers for that switch I can bring some tomorrow
At the fan show ?
That's cool. What I have is working pretty good so that would be totally up to you. The ones I would really like would be the very small ones. I used hard plastic tube. It works but who knows how long?

Last edited on Fri Feb 17th, 2017 10:02 pm by Don Tener

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