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 Posted: Fri Nov 3rd, 2017 10:41 pm
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Steve Leonard
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I am in the process of cleaning up my 1950 Emerson 79648-AP-G fan.  The green ground wire shown in the picture was not attached, but just "hanging around."  The individual copper wires were flattened out (I twisted them), so it is possible they were pinched between the capacitor bracket and the capacitor, but I am just speculating.  Any info where to connect it would be appreciated.
This particular Government issue fan had the RMS 24668 tag attached to the fan blade cage. Maybe it was from a Mail Ship?

Thank you in advance,
Steve







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 Posted: Sat Nov 4th, 2017 12:43 am
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Mark Behrend
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Hi, originally it didn't have a ground wire but that replacement cord does. You can either cut off the ground wire or attach it to one of the bolts that attaches to the iron base.

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 Posted: Sat Nov 4th, 2017 01:43 am
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William Dunlap
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That could be anything. Probably not Root mean square, tho.

Maybe something middle school, or who knows?

They're called asset tags and I leave them on my fans when I find them.

Cheers,
Bill

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 Posted: Mon Nov 6th, 2017 11:33 pm
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Kevin Massey
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Hi Steve:

I would crimp a ring terminal on and put the ground under the speed coil mounting screw.

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 Posted: Wed Nov 8th, 2017 02:09 am
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Steve Leonard
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Thank you all for your input.
Yes -- asset tags! I will definitely keep that tag on the fan cage.

Good idea, Kevin. I will add a ring terminal to the gnd wire and attach it where you advised.

Steve

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 Posted: Wed Nov 8th, 2017 11:12 am
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Lane Shirey
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Just be aware that it might trip Ground fault breakers and outlets with the ground attached. Many of these old fans leak a little current. Not enough to feel a shock or hurt you ( in most cases) but the circuitry may detect it. If it does cause problems, just detatch that ground. They never had them originally, and likely because it was owned by a government or municipal entity, one was likely added as part of their safety program. 

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 Posted: Mon Nov 13th, 2017 11:28 pm
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Steve Leonard
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The Emerson restored nicely, and works well. I am not sure if there are supposed to be oil wicks for the two bearings. There are slotted brass plugs below the bearings, and the open oil holes on top.  There is a little bit of wicking material way down near the bearing, but not a "wick."
The blade was a real pain to get into the cage! I tried not too, but scraped off a lot of my blade repaint  work :(

Anyway, here are a couple pics of the fan.  Thank you again for your help:





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 Posted: Tue Nov 14th, 2017 06:42 am
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William Dunlap
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Nudge nudge....that's a two piece cage. The front part just clips onto the back part.

Hey, no worries, you didn't know....

Now you can repaint the blade and install it without so much as a smudge.

Nice APG by the way, I've had five of them. Two of them get daily use and abuse.

Pull the screw out of the bottom and remove the wick and replace it with new stuff. Vintage Wire and supply has it, or McMaster/Carr. A piece on the top is a good idea, too, front and rear. The ferrule comes out with a screw threaded in, then just pull it out.

Cheers,
Bill

Last edited on Tue Nov 14th, 2017 06:44 am by William Dunlap

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 Posted: Tue Nov 14th, 2017 07:22 pm
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Steve Leonard
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HA! You have to give me credit for gettin' those blades in that cage :) The old paint where the back cage hooks connected to the front cage looked like tack welds. Duh. Thanks, Bill.

Is there any particular screw thread size to use to get the top ferrules out? Or just any screw that will grip in there?

Thanks again,
Steve

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 Posted: Tue Nov 14th, 2017 08:49 pm
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William Dunlap
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8-32 works in mine. Barring that, you can thread in a tap of the same size.
They're just gently knocked in. Very light press fit.

I was looking at that puzzle. Amazing you pulled it off.

Cheers,
Bill

Last edited on Tue Nov 14th, 2017 08:50 pm by William Dunlap

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