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Posted

An esteemed member put me on this today...biggest fan I have 20" and it can move some air.  Going to take a lot of mother's to shine this monster up.20240905_170747.thumb.jpg.484666301e9571d394c8dfccd550f874.jpg20240905_170750.thumb.jpg.c77c88dc5072a606481ca8e9b65adbc6.jpg20240905_170813.thumb.jpg.efc57b0b2a2f772a87e36aac7134501d.jpg20240905_170809.thumb.jpg.3628fb6dd0cd2cef95bf7a83dcc63790.jpg

 

 

 

  • Like 6
Posted (edited)

I think if you measure one wing from center rotor shaft to wing tip, you'll get 11" for 22" diameter blade.  And 1140 RPM makes for a centrifugal start 1/4 HP 6 pole motor. 🙂

That original center guard banner still factory legible is a treat all by itself.  Despite the aesthetic purpose rear motor cover missing, it still presents itself well. You could actually move the pull switch down to the base column and put a flat plate for cord entry at the bottom of the motor. Or, with a donor rear cover, you could have a reproduction rear motor cover done at Cattail foundry cheap. Those are well constructed beauties! 

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Edited by Russ Huber
  • Like 2
Posted

Once you get real good at it, I’ll send mine your way Jim. 😀

Posted

James Funk the Chicago blade designer.  He was a mathematical genius.

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  • Like 1
Posted

Best one I ever saw was Chris Smiths at an Indy fan fair several years ago. I had some wheeling and dealing to do and had collected the last 100 I needed. Walking over to get it, Chris was just completing a deal with a Chicago collector for it. I missed by 2 minutes...

Posted
1 hour ago, Stan Adams said:

Once you get real good at it, I’ll send mine your way Jim. 😀

 I haven't been able to  get the blade off yet... so it might be a while 

  • Haha 1
Posted
45 minutes ago, Jim Roadt said:

 I haven't been able to  get the blade off yet... so it might be a while 

Check for more than one set screw. You might be able to borrow and finagle a 3 hook pulley puller to slip that 3 wing blade off. 🙂

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Posted

Check for a double set screw, I had a ward that had one under the top one.

Posted
3 hours ago, Michael Rathberger said:

Check for a double set screw, I had a ward that had one under the top one.

Will do 

Posted
On 9/5/2024 at 9:14 PM, Russ Huber said:

Check for more than one set screw. You might be able to borrow and finagle a 3 hook pulley puller to slip that 3 wing blade off. 🙂

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In theory would work, however,  no way to attach it evenly  .  Fortunately Auto zone lends tools out and I figured that out without spending any money

Posted
2 hours ago, Jim Roadt said:

In theory would work, however,  no way to attach it evenly  .  Fortunately Auto zone lends tools out and I figured that out without spending any money

Take the fan out to an open field and tape this between the motor and the blade and light the fuse and run. Just make sure your set screw(s) are loose. 

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Posted

Laryngoscope ,aka lizard cam, shows no second set screw...nor any polyps 20240907_175739.thumb.jpg.488a7d3eb25bf6512cf1705f69cc0b31.jpg

Posted
On 9/5/2024 at 6:42 PM, Russ Huber said:

James Funk the Chicago blade designer.  He was a mathematical genius.

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 Are you sure ??  That dude could double as an identical twin to Perry Mason's legal sidekick, Paul Drake

Posted
2 hours ago, Geoff Dunaway said:

 Are you sure ??  That dude could double as an identical twin to Perry Mason's legal sidekick, Paul Drake

 

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Posted

If there is enough clearance between the blade and motor housing to slip in vice grip jaws, you can freeze the rotor shaft movement and spin the blade free off the shaft. You will need to wrap some thick cloth/tape around the shaft before you lock the jaws down on the shaft, so you don't chew up the shaft. Obviously, you had no faith in my dynamite suggestion. 

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Posted

One eternity later blade is off

interesting mounting bracket and padding to absorb vibration along with "the slit" in base20240917_125139.thumb.jpg.d21229fb11d49fb59e4101d5adf49d00.jpg20240917_200151.thumb.jpg.e2c69db8acedc4c15d76db60559347b8.jpg20240917_200323.thumb.jpg.eda5ddbe130c8ccd466a69e850fd015b.jpg

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Posted

Not sure why those two nuts were wired together but that bracket with the antivibration padding is not coming off anytime soon either 20240917_200853.thumb.jpg.d7b970490be2a86a12c8a113a8d00845.jpg20240917_201229.thumb.jpg.9fabc5fee2d5dc96b4bfc321949a9da0.jpg20240917_201305.thumb.jpg.441b8e0be73496c4b78ad824f52d8343.jpg

Posted

The wire is an old school locking mech ensuring the nuts won't come loose. Some of the old Harley guys would put them on the primary chain cover.

Posted

Wow, Jim! Now that your nuts are in order, time for an adrenalin rush and pop the bell on that motor! Wanna see those Marathon motor guts, oh ya. 🙂 

Posted (edited)

My blade was stuck as well. Big flathead screwdrivers have a big wedge, and lots of leverage. Increased leverage and increased wedge persuade things to move... fast. 🙂

Another possibility to persuade a stubborn circulator blade off the shaft is a Pitman arm wedge.

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Edited by Russ Huber
  • Like 1
Posted

or pry it up a 1/4" and pound it back down...spray....repeat and slides off like butter....never panic

That motor is never coming apart

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