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AS 2066 question


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Hi All

I'm still a beginner reassembling an AS 2066.  The stem has three positions: wind, date set, and hand set.  Mainspring and bridge are in but not the click or the pallet fork.  When I pull the stem to the third position and turn the mainspring will also turn either way depending on crown turn.  Should it?  Below is the repair instructions (would love to find more like it).

Thank you

Charlie

 

AS 2066.pdf

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I think it may have something to do with what they are calling the "large driving wheel & notched set wheel" which is below.  It's two gears on one pinion and both can move independently.  My guess is that the low gear (forefront) sets the hands.  While that's occurring the top gear, which is part of the train wheels, is also moving.  My guess is that should not move.  But what's to prevent it? 

Charlie

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Their stuck in rodico.  This part is "new" from the supply house.  I tried to remove the gears on the old one and lost that clip at the end.  Now I see that the repair instructions say "cannot be disassembled, available only as a unit".  I did oil the seam between the two gears.  I suspect there's still too much friction.  If that's the cause, how do I remedy it?

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2 minutes ago, Lc130 said:

Their stuck in rodico.  This part is "new" from the supply house.  I tried to remove the gears on the old one and lost that clip at the end.  Now I see that the repair instructions say "cannot be disassembled, available only as a unit".  I did oil the seam between the two gears.  I suspect there's still too much friction.  If that's the cause, how do I remedy it?

Should have some friction . So do not over oil. Just a tiny bit so it's not metal to metal . As that will destroy the friction in no time . That is instead of the cannon pinion . AS 1950 and zodiac 70 and a lot of other movement use the same construction . Haven't tried it without the pallet fork. But i think it can have that effect if you try to wind it up. Rotor only turn one direction when you put it back . And the other way it will freewheel .  So put the movement back together and you should see that it works fine. 

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1 hour ago, rogart63 said:

 Rotor only turn one direction when you put it back . And the other way it will freewheel .  So put the movement back together and you should see that it works fine. 

Not sure what you mean by this. 

I put the pallet fork in and there's no power in the main spring.  When I set the hands that torque goes through the wheel train and causes the pallet fork to shift back and forth.  Should this be the case?  Seems that if completely assembled that would cause a problem.

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    • Hello and welcome from Leeds. 
    • Unfortunately I'm not that lucky. I started on the train side and after I noticed the binding I pulled everything out except the driving wheel to rule everything else out. It still binds. I'm going to double check that the pinion is fully seated on the staff first, then if no joy I'll push the bridge jewel up a fraction of a mm. Fingers crossed!
    • Happy to have helped, great way to start the day with a win! 🥳
    • Thank you for the advise!! It worked. The setting screw was a lock/unlock to remove the rotor. 
    • I have that French tech sheet too, it is a little different than the English one (eg, it doesn't have the auto works diagram). BTW, it looks like you are looking up the case number in the 1979 ABC supplement. The 1974 ABC catalog does have the 3093 case. As you determined it takes the 1222-5 crystal.  When I serviced my President 'A' (which also takes that crystal), I was able to fit a 29.8 crystal from my DPA crystal assortment. Those are, in my opinion, a great deal. The assortment comes with 10 sizes each from 27.8mm to 32.4mm in 0.2 increments. I pretty much use them for any non-armored crystal that takes a high dome crystal. I think they no longer make them but Cousins has still has some in stock but when I bought them they were around $40 for the set and now they are around $100. Still, at 40 cents a crystal it's still a good deal. For the large driving wheel, I remember I once assembled the keyless/motion works first and when I placed the large driving wheel it was interfering with the setting wheel on the dial side as the teeth were not fully meshing and it wouldn't fully seat. If that isn't the issue I got nothing and am looking forward to see how you solve it 🙂
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