Cuckoo Clock Keeps chiming

Discussion in 'Clock Repair' started by scorehit, Apr 22, 2018.

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  1. scorehit

    scorehit New Member

    Apr 21, 2018
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    My Cuckoo clock will strike every 20 minutes and continue until the weight goes all the way to the floor. However, if I manually advance the minute hand 10 minutes while it is striking it will stop. How do I fix? Thanks!
     
  2. roughbarked

    roughbarked Registered User

    Dec 2, 2016
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    Sounds like the gathering pallet and rack are not synchronising. It could be that the gathering pallet snail is loose on the shaft or it could be that the rack has caught up or it could be that the stop mechanism isn't working properly. All of which require taking the movement out for a look.
     
  3. Steven Thornberry

    Steven Thornberry User Administrator
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    Jan 15, 2004
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    I think this will do better in the Clock Repair forum. I will move it there. In the meantime, it would be good to see some pictures of the movement.
     
  4. scorehit

    scorehit New Member

    Apr 21, 2018
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    Kind of new to clock repair. How would I synchronize the gathering pallet and rack?. Also how do I tighten the snail? Attaching pics to help. Thanks!

    Movement_Handshaft[1].jpg Movement_Isometric_1[1].jpg
     
  5. roughbarked

    roughbarked Registered User

    Dec 2, 2016
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    Pull on the strike chain and turn the hands to the O'clock position, watch how the strike mechanism works.
     
  6. R&A

    R&A Registered User

    Oct 21, 2008
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    The warning pin must lock out at the same time it drops in to the gathering pallet. Plus the inside cam that causes the drop must be almost vertical. 3 things come into play at the same time. If the snail is lose. You can tighten the back side by re-staking.
     
  7. Chris D

    Chris D Registered User

    Sep 8, 2009
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    The most likely problem is the joint on the rack hook is dirty (see red arrow on pic). Try cleaning the joint with some 'brake cleaner', don't oil it.

    Movement_Handshaft[1].jpg
     
  8. Willie X

    Willie X Registered User

    Feb 9, 2008
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    The problem Chris mentions is a common one on this movement. When this thin and weird looking extension is completely free on it's post/rivet the rack hook can fall a bit further and the train will stop properly. Willie X
     

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