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emerson 6250 blades  Rate Topic 
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 Posted: Wed Jun 13th, 2018 06:51 pm
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Nathan Britt
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I have been restoring an emerson 6250 golden jubilee, and when I turned it on, it started making this horrible rattling noise. I switched the blades out with another set and it worked perfectly. Both sets of blades are exactly the same, and balanced. the only difference is that the rivets on the rattley blades are slightly looser and the blades go on the shaft much easier. Does anybody have any ideas? 

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 Posted: Wed Jun 13th, 2018 06:54 pm
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Stan Adams
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Those are really famous for the spider being loose on the hub

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 Posted: Wed Jun 13th, 2018 07:17 pm
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Nathan Britt
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It is a little loose. Does that affect the performance of the blades?

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 Posted: Wed Jun 13th, 2018 11:53 pm
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Stan Adams
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It makes them rattle & make so much noise you don't want to use it. I use a socket about the size of that roll, place the hub on something solid, then hit the socket with a hammer. It will tighten that roll where the spider & hub connect.

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 Posted: Thu Jun 14th, 2018 12:51 am
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Nathan Britt
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Thanks for the feedback! I'll try it.

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 Posted: Thu Jun 14th, 2018 05:16 pm
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Nathan Britt
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I tried tightening the roll and the rivets, but when I turned it on it still made the same rattling noise. Any other thoughts?

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 Posted: Mon Jun 18th, 2018 03:29 am
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Zachary Parr
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Could be the bearings. You need to oil it with zoom spout with no detergents. 

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 Posted: Mon Jun 18th, 2018 10:32 am
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NM Whitney Jr.
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I've got a 6250 that had the same problem. Mine was loose enough I could rotate the spider on the hub.  It didn't wobble or wiggle off axis by hand... but once you put in use, it sounded like the fan was flying apart.  So I read about the "position a socket on the roll and beat it with a hammer" approach (more artfully described by Stan, above). You must hit it HARD... REALLY HARD!  Two whacks tightened it up. I went for a third, hit the edge of my thumb, and succeeded in putting a very nice crease in a blade. Word to the wise, use a vise to hold the blade and some vice grips to hold the socket... then Proceed with Caution...

Last edited on Mon Jun 18th, 2018 10:35 am by NM Whitney Jr.

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 Posted: Mon Jun 18th, 2018 07:03 pm
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William Dunlap
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If you've got a nice vise, place the blade with the socket between the hub and jaw, tighten, then check. If still loose, tighten some more. Use some finesse. You can damage the hub with a hamfisted approach.
I have spacers, sockets, etc. that I have shaped on my lathe to fit the rolled edge of the hub.

When these don't respond to this method, I silver solder the bugger.

Cheers,
Bill

Last edited on Mon Jun 18th, 2018 07:05 pm by William Dunlap

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