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73648 motor disassembly  Rate Topic 
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 Posted: Mon Jan 4th, 2021 03:48 am
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Frank McCormack
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I received a 73648 basket case that a friend found.  It is all there with lots of patches on the cords, had a sign on it that said do not plug in, shorted. And it has a very thick coat of green latex house paint.  Its a beauty.  So I thought I would dive into it.
Started taking it apart and found that the speed switch has 2 little brackets, one of them was off the main handle and all the way to the side making the short.  Corrected this, checked with a meter and all looked good and started up the motor, ran great on all 3 speeds.  A good start. Decided to continue taking apart to do a full clean up.

Need to take apart the motor to replace the head wire and clean up the outside.  Got to the oscillator drive shaft.  Everything I read on the forum looks like it should just pull out after removing the gearbox and unscrewing a keeper which I did.  It would not move, so I tapped lightly on the blade end and it looks like a bunch of stuff started coming out with the shaft.  Did I mess up in the removal process?  The shaft no longer turns so I'm not sure what to do here.







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 Posted: Mon Jan 4th, 2021 04:57 am
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Steve Stephens
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Remove the front motor cover than the strange "nut" at the very front.   I don't remember which way it turns so find out from someone else before trying.   I think an adjustable wrench will fit over the front part of that nut.   I take these apart before removing the gearbox so I'm not sure where you go from where you are now.

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 Posted: Mon Jan 4th, 2021 10:55 am
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Lane Shirey
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Joined: Wed Apr 30th, 2014
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There’s likely debris and hardened gunk that have formed on the driveshaft keeping it from sliding through the bearing.  Also some of them have a spring that fits over the driveshaft inside the rotor bearing tube.  That might also be glued on by the gunk.  
I’d remove that funky nut on the front as Steve suggested and squirt some good penetrating oil into the tube to free up the hardened gunk. You might have to wait a day or so to let the penetrant work.  

I hope that helps!  

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 Posted: Thu Jan 14th, 2021 03:53 am
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Frank McCormack
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Hi all, well I let it set and soak with penetrating oil for quite a while and tonight decided to tackle it again.  After many taps I decided to go for it and push it out.  It was sure stubborn, turns out that somehow a curlycue piece of wire was broken off and jammed in there, you can see the bit that caused all of the problems in the picture.  Now I understand how these fans go together and what I should be looking for.  Cool design for oiling, the drawings that I found on the forum now make sense. 

Once I got the shaft free everything looked good.  I can move the shaft back into the motor with no interference now.  I have lots of cleaning, stripping and painting to do with this fan, but I am encouraged that I will be able to complete it now.



Here is what the fan looked like when I got it, lovely caked on house paint. 







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 Posted: Thu Jan 14th, 2021 04:19 am
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Russ Huber
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 Posted: Fri Jan 15th, 2021 02:07 am
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Frank McCormack
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Thank you Russ! 

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 Posted: Fri Jan 15th, 2021 03:25 am
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Russ Huber
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Great fan for a wall hanger in the garage. They move serious air and keep those pesky flies on the move.  Add one or two more and your hair on your head(if you have any) gets rearranged:D

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