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AFCA Forums > Antique Fan Collectors Association > Post-1950 (Vintage) > AMC Box fan - 2 speed, unidirection: oil it?

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AMC Box fan - 2 speed, unidirection: oil it?  Rate Topic 
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 Posted: Thu Apr 8th, 2021 07:54 am
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Brent Harsh
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This box fan has been in my family since before I was born; I opened it today to clean for the first time and also fix some clearly broken-down insulation on some of the wiring.  This has had heavy use (at times, I've just left it on for months in the summer) and is a tank.  Once I had it open, I wanted to check the windings and clean a bunch of the caked-on dust and grime inside, so loosened the back of the motor - I had *expected* the back of the motor to pop off, but instead the front with the whole fan assembly pulled out first.  Exposing the rotor/brushes - so I'm worried about long-term damage in there from all that dust.
It's all back together and running fine again... but:

I am 100% certain that no one has lubricated anything in over 50 years. I couldn't really tell, but it looked like solid bushings and not a bearing (I didn't look that closely, didn't think about it until it was back together - does one oil these things?  If so, how and with what?  I don't want to gunk it up, since it's been running great forever, but hey... if it dies in a year and someone says "50 years without oil!  Gimme a break!" I'll be annoyed at myself!

And, should I take it apart again and do a more thorough cleaning around these moving parts?











I look forward to your responses.  I never knew fan collecting was a thing - I have only this one, and have just enjoyed using it for my entire 53 years and keep marveling that it outlasts every other fan we've purchased.  Wish they still made them like this.

Last edited on Thu Apr 8th, 2021 07:54 am by Brent Harsh

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 Posted: Thu Apr 8th, 2021 02:00 pm
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Tom Zapf
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ON THE TOP OF EACH END MOTOR CAP THERE IS A HOLE FOR OILING, AND YES THEY DO NEED TO BE OILED ..GENTLY BLOW OUT THE DUST , DONT USE HEAVY COMPRESSED AIR.... THIS FAN DATES TO AROUND 1962 AND WAS MADE BY RM HUNTER COMPANY 
SINCE IT IS APART YOU CAN OIL THE WICKING AROUND THE REAR BUSHING AND THEN USE THE END CAP HOLES FOR PERIODIC OILING ..YOU SHOULED BE ABLE TO ALSO OIL THE WICKING AROUND THE FRON BUSHING TOO IF YOU HAVE VISIABLE ACCESS. 

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 Posted: Thu Apr 8th, 2021 02:40 pm
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Brent Harsh
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Thanks Tom, perfect - I'd noticed the holes in the motor housing caps and thought that might be what they were for - they just didn't seem to *exactly* line up with the bushings, but I'll go do that now before running it this summer. I'd been wiping the dust off, not blowing at all, was worried about gunk getting up into the brush area and wearing it out. I figured it was pre-1967 since that's the year I was born - great to have a firm date. I bet my folks got it as a wedding gift or shortly after setting up their first home.

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 Posted: Fri Apr 9th, 2021 01:39 pm
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Tom Zapf
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THEY ARE GOOD FANS FOR SURE...GOOD LUCK WITH IT! 

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 Posted: Sat Apr 10th, 2021 01:39 pm
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Jeff Rusnak
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Hi Brent,I’d follow what Tom said, gently clean or vacuum or brush out the dust n dirt from years of use on all motor surfaces being careful around the motor windings and wires.Both ends of the motor caps have a wool wicking that absorbs the oil and helps keep the bearings oiled.I would soak those with a good oil a few drops at a time you’ll be surprised at how they drink up the oil especially from not getting oil for years.DO NOT OVER OIL THOUGH !! I use 20 or 30 weight NON detergent oil that’s the best !! Zoom oil is a little too light in my opinion, if you can’t get the 20 or 30 weight non detergent oil I’d say try 3 n I oil in the blue can specifically for electric motors.Any oil is better than none.Also clean the motor shafts both ends and put a drop of oil on each before assembly of the motor. Then every year just put a few drops of oil into each oil hole at both ends of the motor before use.You’ll be surprised at how much better the fan runs !! 

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