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Emerson Fern leaf re-wound  Rate Topic 
 Posted: Tue Nov 9th, 2021 03:17 pm
1st Post
Chanaka Jinasena

Joined: Mon Oct 18th, 2021
I re-wound one of my many Emerson Fern Leaf ceiling fans as it was not working. When power was applied, the stator did not agnetize.
Now it works on 220V 50Hz and still has a good starting torque and runs at the expected 200 RPM

What weight of oil and how much oil should be used in the oil cup ?

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 Posted: Thu Nov 11th, 2021 10:36 am
2nd Post
David Hoatson

Joined: Sat Oct 5th, 2013
Location: Chestertown, Maryland USA
Use a 20wt non-detergent oil, such at Zoom Spout or 3-in-1 blue bottle (not black).
Add oil, run it for a while, then check the level with a U-shaped wire. The goal is to have the oil as high as possible without overflowing. You want the thrust bearing to be submerged and the bottom of the rotor in oil so its spiral groove can pump oil up through the bearing to tor top. 

It should take about 1/2 of a 3-in-1 bottle. 

Last edited on Thu Nov 11th, 2021 10:38 am by David Hoatson

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