Help w/ AOU Oscillation Binding?

[Jared DelOrfano]

Hey everyone. I’m having trouble with a 1930 GE AOU AK1 I’m restoring. I didn’t take a good reference photo of the oscillating arm and crank disk when I took it apart. Now, when I try to spin the crank disk/arm assembly, it gets stuck on one side of the arc. Specifically, the arm bumps up against the base of the loop handle. I’ve tried switching things around but haven’t found the correct orientation for everything. Can anyone share a photo of what “right” looks like? Here’s how mine looks.

Full transparency, I *did* rebuild the bottom of the gearbox so the crank disk/shaft could be misaligned, but I really don’t think that this is the problem. I was very careful to make sure that the pieces were aligned correctly when I glued this thing back together.

Edited October 16, 2023 by Jared DelOrfano

[Steve Stephens]

Your oscillator linkage may be upside down or switched end for end..  I had a mint fan like yous but the photos I took do not show enough details.   I had an earlier AOU with the same problem that the linkage interfered with the oscillation.   The linkage on that fan did not have the small bend at one end.

 

[Paul Carmody]

[Jared DelOrfano]

Looks like my repair may have been off just enough to affect the oscillating arc. What do you guys think?
 

Does anyone have any suggestions of ways I can modify the arm to make this work? Here are photos from the repair and a video of the crank disk spinning.

 

 

Edited October 16, 2023 by Jared DelOrfano

[Mark Olson]

Take the link and grind clearance (not  Clarence) into it where hits. After all, you are this far in, you may as well. Use a round file (rattail), dremel or die grinder, or a bench grinder if you must, but just massage it enough to clear.

[Jared DelOrfano]

4 hours ago, Mark Olson said:

Take the link and grind clearance (not  Clarence) into it where hits. After all, you are this far in, you may as well. Use a round file (rattail), dremel or die grinder, or a bench grinder if you must, but just massage it enough to clear.

Started shaving down the link with my Dremel and that seems to be doing the trick. Have a little more work to do on it but I need to buy some new bits. Thanks for the idea!