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12" Emerson Silver Swan Stalling Issues  Rate Topic 
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 Posted: Sat Sep 11th, 2021 01:53 pm
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Levi Mevis
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Hello everyone, I was recently given a 12" Emerson Silver Swan that for some reason or another seems to have a stalling issue. At firtst I thought it was maybe a bad capacitor, so I took the capacitor out of the base of a 77646 I had laying around, and sure enough the fan fired right up.
But then the fan stalled out again after attempting to run it all night (I have no idea when it stalled out during the night I just know that when I woke up the fan wasn't running), so then I went to the local motor shop and bought a brand new motor run capacitor, a 2MFD @ 370/440 VAC metal can capacitor (like the ones used in the large Emerson Pedestal Fans), and the fan wouldn't start up at firts but then I gave the motor a drink of oil and hand started the blades with the fan turned on and sure enough it started right up, and then it finally would start on its own. 
I went to run the fan over night again this time with the brand new capacitor installed, and unfortunately I was greeted in the morning again with a stalled out fan.

So I'm at a loss for what might be going on here and causing this fan to keep stalling out.

Is it the capacitor failing or is it something else? Perhaps the bearings in the motor are so gummed up that it causes the motor to stall out?

Some help would be appreciated in this matter.  

Last edited on Sat Sep 11th, 2021 01:53 pm by Levi Mevis

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 Posted: Sat Sep 11th, 2021 09:21 pm
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Steve Cunningham
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I have one doing the same thing.

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 Posted: Sun Sep 12th, 2021 04:13 am
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Levi Mevis
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Well I figured out what the issue is, its the oscillator gearbox, the old gummy grease in the gearbox is what's causing the fan to stall out, unfortunately there's one stubborn screw that's holding the gearbox together that doesn't want to come out so I can't get the gearbox apart to clean out the old grease and put new grease in, the weird thing is that all of the screws associated with the gearbox assembly were hard to get loose and required me to beat on the back of the screwdriver with the hammer while the screwdriver was inserted into the screw head and then the screws finally loosened with a little pressure on the screwdriver, but this one screw isn't wanting to budge not even with some persuasion from a hammer, and unfortunately my needle nose vise-grips I have are junk and won't even grip onto the screw head, they just slip right off as soon as I go to turn them to try and loosen the screw. 
So it looks like this fan may have to be operated without a gearbox, or until I can get another gearbox located for this fan. 

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 Posted: Sun Sep 12th, 2021 10:24 am
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David Hoatson
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Also, Emersons don’t like regular 3-in1 oil in the black bottle. I have seen two fans slow down and stop because of this. 
Use 3-in-1 blue electric motor oil or Zoom Spout

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 Posted: Sun Sep 12th, 2021 03:14 pm
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Levi Mevis
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David Hoatson wrote: Also, Emersons don’t like regular 3-in1 oil in the black bottle. I have seen two fans slow down and stop because of this. 
Use 3-in-1 blue electric motor oil or Zoom Spout
I was using Zoom Spout to oil this fan, so this doesn't even apply here. I never use regular 3-in-1 oil to oil my fans. As I already said I figured out it was the oscillator gearbox on my fan that was causing the fan to stall out, because the old grease was binding up the motor.

Like I said though unfortunately they didn't use anti-seize compound on the threads of the screws on the gearbox so the screws seized up and I had to use a little brute force to get two of the screws loose the third screw unfortunately wasn't responding to the same brute force treatment I gave to the other two screws (which was  a frew blows from a hammer to the back of the screwdriver handle) and so I have no idea how I'm going to repair/clean/relube the oscillator gearbox if I can't get this last screw out.

Last edited on Sun Sep 12th, 2021 03:20 pm by Levi Mevis

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 Posted: Sun Sep 12th, 2021 04:37 pm
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Dave McManaman
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Last method of choice but can you drill the old screw out?

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 Posted: Sun Sep 12th, 2021 06:22 pm
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David Hoatson
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I bought a gun smithing screwdriver set and love it. It has bits in various lengths and widths. With the perfect fit, screws come out easier. Maybe not if they are seized up. 

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 Posted: Sun Sep 12th, 2021 10:25 pm
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Levi Mevis
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David Hoatson wrote: I bought a gun smithing screwdriver set and love it. It has bits in various lengths and widths. With the perfect fit, screws come out easier. Maybe not if they are seized up. 
Yes, I've heard of using gunsmithing screwdrivers for these old fans and have been meaning to invest in a good set but keep forgetting to do so, as I have several fans that have screws that are "stuck" in place and can't be removed with a regular set of screwdrivers because they just slip.

I actually have a 1918 Hunter Rebadged GE 2-Star fan that has a seized up knuckle joint (it doesn't tilt anymore) and I was attempting to disassemble the the knuckle pivot but the retaining screw is seized up and I can't seem to get it loose. 

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