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Emerson 27646/29649 Complete Disassembly  Rate Topic 
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 Posted: Tue Jun 11th, 2019 06:34 pm
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Richard Daugird
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I just got one of each, paint is pretty far gone, so I want to completely dissasemble and repaint. Has anyone here done a tutorial with pictures on this? I have done Pancakes and Tanks, but not an Emerson.

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 Posted: Wed Jun 12th, 2019 07:46 pm
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Sean Campbell
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Richard, I don’t have any pictures unfortunately, but I just got finished fixing up a 29646. I’ll give you the brief version of what I did. First, remove cage and struts. Then, remove the screw for the oscillator link. Next, get the front of the motor open. The blade is a screw on, so you need to drip penetrating oil (liquid wrench for me) on the seem of the rotor and the blade. Next, use a heat gun on the blade hub while slowly spinning the blades. Use the head gun until the oil you applied sizzles. You’ll want it to cool before repeating a few times. In the meantime, take off the oscillator gearbox by removing three screws. The back will now be smooth aside from the worm gear. When you feel ready, place a black oxide socket screw in the left screw hole from the oscillator. Screw it in to hold the rotor and then turn the blade in the direction it turns when running. The blade and front plate should come off allowing access to the motor interior. Now, take the worm gear on the back of the fan and pull it out the back of the motor. It should look like a long shaft. There is also a nut on the front of the rotor assembly. Unscrew it and remove the fiber washers in the correct order. Then remove the rotor from the single bearing shaft. If you need to get the stator out, unscrew the threaded pieces that held the front plate and guard on. Then use the pipe trick or gravity to do the rest. Hopefully this is helpful to you! I’ll go into more detail if you have a specific question.

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 Posted: Wed Jun 12th, 2019 08:18 pm
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Steve Stephens
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Sean Campbell wrote:  place a black oxide socket screw in the left screw hole from the oscillator. Screw it in to hold the rotor and then turn the blade in the direction it turns when running. The blade and front plate should come off allowing access to the motor interior. These are called "cap head screws" and are probably hardened.   From the slide-out cardboard drawers containing misc. hardware parts at many hardware stores.  The smaller size fits some of the smaller Emersons but not all.  The larger size fits the 12 and 16" Emersons.   I use two screws against the rotor and tighten them snugly but not with full force.   Make sure any screw you put into the rear of the motor will not hit any stator windings/wires.




This is probably from a 27646 Emerson


This also might help in the disassembly of your fan.  c.1937 catalog image.





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 Posted: Wed Jun 12th, 2019 09:48 pm
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Richard Daugird
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Maybe I should document this whole procedure for the next newbie...

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 Posted: Wed Jun 12th, 2019 09:55 pm
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Richard Daugird
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P.S. That cut-away is great! But it is not high enough resolution to print and read.:?

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 Posted: Thu Jun 13th, 2019 12:16 am
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Cory Baughn
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That would be a good thing to do Richard. Emerson necks and stators were a bit foreign to me when I first started. Not like a simple GE. Without Tom Newcity and this forum's verbal help mine would've set not restored for some time.

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 Posted: Thu Jun 13th, 2019 09:57 am
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Lane Shirey
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Richard, if you need any help, just give me a call!  They’re great fans!  

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 Posted: Thu Jun 13th, 2019 02:31 pm
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Richard Daugird
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The fan came apart surprizingly easy. I was on a speaker phone call the whole time so I didn't get to take pictures. I did make sure to bag all parts. Pretty amazing piece of machinery. Maybe I will re-assemble it and take it apart again, and take pictures along the way. Magazine article?

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 Posted: Thu Jun 13th, 2019 03:59 pm
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Sean Campbell
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Richard, I think it would be a great article for the magazine! It would be especially helpful for people working on their first Emmy!

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 Posted: Fri Jun 14th, 2019 09:17 pm
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Tom Newcity
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Richard Daugird wrote: The fan came apart surprizingly easy. I was on a speaker phone call the whole time so I didn't get to take pictures. I did make sure to bag all parts. Pretty amazing piece of machinery. Maybe I will re-assemble it and take it apart again, and take pictures along the way. Magazine article? 
How well did the fans run before you began disassembly? 

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 Posted: Fri Jun 14th, 2019 09:29 pm
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Richard Daugird
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Ran fine, just ugly. I was just going to paint the base, but then I noticed the headwire was frayed; there was no slack inside so it had to come apart anyway. No excuse not to strip and repaint, the original Japanning was toast.

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 Posted: Tue Jun 18th, 2019 05:29 am
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Cory Baughn
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As Tom states, I have had to learn the very hard way to make sure a fan runs well as is, and if not, diagnose, then disassemble. Early on, I would tear in and just start restoring. Definitely learned the hard way to preemptively make sure it works before I remove one bolts, after checking electrical safety that is.
Glad to hear the fans run great, good luck on the restore Richard, I know you'll do a good job. Holler if you need anything at all. 

Last edited on Tue Jun 18th, 2019 05:30 am by Cory Baughn

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