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  1. #1

    Default Cuckoo sings if the hands are moved backwards, but not if they go forwards

    Dear Friends,

    My cuckoo clock, an Azura, has a cuckoo that sings if I move the hands backwards, or if I pull the little string which allows me to advance the hours the cuckoo sings. But if I move the hands forwards there is just a "Thunk", and the cuckoo only opens the door a tiny crack.

    You can see the mechanism in this video, where I advance the hands clockwise, then anti-clockwise:

    https://youtu.be/i9DqwKw9F84

    How can I repair it?

    Thanks for your time! (and expertise)

  2. #2
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    Default Re: Cuckoo sings if the hands are moved backwards, but not if they go forwards (By: dalgetty)

    I can't tell for sure but it sounds like the wheel timing is
    off such that the warning is not right, leaving the maintenance
    cam in the wrong position.
    Warning should be long enough such that the maintenance lever
    can fall back into the slot on the maintenance cam.
    We'd be better able to tell if the movement was out of the case.
    The video doesn't show much of the movement's action.
    Tinker Dwight

  3. #3

    Default Re: Cuckoo sings if the hands are moved backwards, but not if they go forwards (By: Tinker Dwight)

    Is this a new development or is the clock new to you? I can see that there is no warning run. What is causing that is not clear. If it's a new to you clock, it may be installed or adjusted wrong. If it's a new situation in a clock that has been acting correctly we'll have to go deeper.
    A man with a clock always knows the time. A man with two clocks is never sure.

  4. #4

    Default Re: Cuckoo sings if the hands are moved backwards, but not if they go forwards (By: dalgetty)

    Hi Tinker,
    I just followed your instructions and that's exactly what happens!

  5. #5
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    Default Re: Cuckoo sings if the hands are moved backwards, but not if they go forwards (By: dalgetty)

    You can see there is a set screw at the right end if the lever.
    You should be able to set it so that it just goes high enough to
    do a single strike at the half hour and the full strike at the
    hour.
    Tinker Dwight.

  6. #6

    Default Re: Cuckoo sings if the hands are moved backwards, but not if they go forwards (By: Tinker Dwight)

    Dear Everybody,

    This is the sound of victory:
    https://www.youtube.com/watch?v=OSW91A4EQTI

    Thanks to all of you for your help - I had never even opened the back door of a cuckoo clock before Monday. I could never have fixed this without you.

    Above all, high five to Tinker Dwight - thanks a million ! You were right on the money.

    Tomorrow I am going to return this cuckoo to the chalet here in Switzerland, where it has hung in pride of place since the 1940s.

    Best Wishes,

    John

  7. #7

    Default Re: Cuckoo sings if the hands are moved backwards, but not if they go forwards (By: dalgetty)

    Now just rotate the hour hand to match the call of the bird, and you have it
    A man with a clock always knows the time. A man with two clocks is never sure.

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