Canon pin issue ? No hand movement

[hidden impact]

I've read others having this issue, but I wanted to create a thread specifically about it.

My movement balance swings freely and appears to be working fine but I can't get the minute hand to move. I believe it's the center canon pin running the hour and rest of the train.

Is there a trick to getting the canon pin fixed the the minute wheel to catch the rest of the train? I don't have this crimping tool I've read about. Is there another method?

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[Raddave]

is that a 7750 ?

 

[hidden impact]

Yes. Don't recognize it?


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[Raddave]

Yes. Don't recognize it?


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i thought so but wasnt sure as i wont work on a 7750 ...


But you know the 7750 has a offset cannon pinion, and it is driven off the the little silver gear , not from the center

 

[hidden impact]

i thought so but wasnt sure as i wont work on a 7750 ...


But you know the 7750 has a offset cannon pinion, and it is driven off the the little silver gear , not from the center

The top end isn't all that intimidating if all that chrono junk is gone. The video above makes it even more practical.

Offset, eh? Is it visible in my pic? The silver gear to the right drives the gear via keyless.


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[Raddave]

yep its visible

 

[Raddave]

as far as tightening that up , i believe you need to stake the hole on the gear to reduce the diameter

 

[hidden impact]

THANKS! Do you see how it looks raised? I just pushed that bastard down and feel more resistance moving the keyless. Let me see if it moves the train...


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[Raddave]

THANKS! Do you see how it looks raised? I just pushed that bastard down and feel more resistance moving the keyless. Let me see if it moves the train...


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K

 

[Raddave]

Hmmm . i wonder if it worked ...

 

[hidden impact]

I think that did it! Hey @Raddave, you should start working on 7750/3's!!!

Thank you!


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[Raddave]

I think that did it! Hey @Raddave, you should start working on 7750/3's!!!

Thank you!


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Cool , if it stops again i know of an old watchmakers trick ...threading a human hair through the hole in the gear before pressing it on ....give it a little more interferance

 

[hidden impact]

Cool , if it stops again i know of an old watchmakers trick ...threading a human hair through the hole in the gear before pressing it on ....give it a little more interferance

Why am I thinking you might be serious?!?!?


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[Raddave]

Why am I thinking you might be serious?!?!?


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http://www.homageforum.com/viewtopic.php?f=6&t=14117&start=0