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Pendulum repair


Kevin83

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Hello everyone.  I bought an old Colonial Grandmother clock which i was told runs but i cannot get it to do so.  I think a piece connecting the pendulum to the clock came loose while driving and i have no idea where to attach it to.  Thank you for any help.  20200705_152447.thumb.jpg.03b3b1d5ff2a10df91916e7060b29f1f.jpg

20200705_152522.jpg

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The bit that has come adrift is the  escapement anchor, some of these fit onto a shaft and are retained with a spring wire with a flat end  . The Anchor operates on the escapement wheel locking and unlocking the wheel.  Look for the shaft on the plate   where the anchor is located.  Easy way will be to find the spring retainer and rotate it, it will lead you to the shaft.

attached images of the anchor escapement   

anchor-escapement-pendulum-clocks.jpg

images.png

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Ok. So my next problem is that the right side weight will fall as soon as it is attached while the left side weight refuses to budge except for pulling it up. The prior owner lubricated the gears with WD40 instead of the proper oil. 

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The right side weight is for the time and the reason its falling is the verge (the part you said fell off and you have pictured) is not attached.  The verge meshes with the escapewheel to cause that tick tock sound and regulate the motion works to keep time

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Hi  The right weight is as  explained and drives the time side gear train the left is the strike side and only releases either on the quarters or on the hour depending on type of clock. fit the minute hand and move it round the dial to determine the strike pattern stopping at the quarters and watching the front plate mechanism for the release. This movement will probably have a count wheel with the slots in governed by a set of levers/wires as per the attachment.

both lever assemblies.jpg

count wheel mech w-warning.jpg

J-wire & center cam.jpg

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    • 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 🙂
    • Not sure, but just looking at it, it seems like the screw on the right may be a fake? The one on the left may not be a screw in the regular sense at all, rather a 2 position device, I think you need to point the slot towards either of the 2 dots and one will secure and one will open. Like I said this is just my best guess looking at the pictures.
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