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  1. #1

    Default Hermle time adjustment

    Hi,


    I have a tradition mantle clock with a Franz Hermle movement #340-020.
    I am new to this and would like to know how to advance the time since it losses 5 minutes every few days.
    It has a + and - on the top of the movement but how do you adjust this as there seems to be nothing to turn.
    Thanks for your help.

  2. #2

    Default Hermle time adjustment (RE: Term)

    Hi,


    I have a tradition mantle clock with a Franz Hermle movement #340-020.
    I am new to this and would like to know how to advance the time since it losses 5 minutes every few days.
    It has a + and - on the top of the movement but how do you adjust this as there seems to be nothing to turn.
    Thanks for your help.

  3. #3
    Moderator leeinv66's Avatar
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    Default Hermle time adjustment (RE: Term)

    Hi, does it have an adjustable nut under the pendulum bob? If yes, that is where you adjust it. If not, look for an adjustment where the suspension spring hands. Hope this helps!

    Cheers
    Peter
    Cheers
    Peter R Lee: AKA (Pee-Tah) from Australia

  4. #4

    Default Hermle time adjustment (RE: Term)

    No pendulum on this movement. What's a suspension spring?
    Sorry newbie.

  5. #5
    Moderator leeinv66's Avatar
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    Default Hermle time adjustment (RE: Term)

    Sorry should have read all the post instead of skimming. Does you movement have a balance wheel? If so, there should be a lever that the hair spring loops through. This is what you adjust.
    Cheers
    Peter R Lee: AKA (Pee-Tah) from Australia

  6. #6
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    Default Hermle time adjustment (RE: Term)

    I think this is one with a "balance Wheel". Look on top of the wheel that swings back and forth. there will be 3 prongs or feet. Slide the upper part in direction of + or - to speed up or slow down.

    Good luck, Don

  7. #7

    Default Hermle time adjustment (RE: Term)

    This movement has a floating balance. If you will look closely, you will that there is a ring with holes in it. On top of the ring is a thing with 3 arms that press down on the ring. Hold the ring stationary and move the arm of the other piece in the "+" direction.

    Moving it from all the way left to all the way right makes about 3 min per day difference. So... you should use small adjustments... say 1/4 in.

    Don't get rough with it... it is not super delicate,but it can break.

    David
    David Robertson - Kingsland, TX

  8. #8

    Default Hermle time adjustment (RE: Term)

    Thanks,

    I believe I read your instructions right, I moved what you said and I hope that works, let you know in 24 hours.
    By the way great board. Quick response and great advice, look foward to learning more as I get more clocks.

  9. #9

    Default Hermle time adjustment (RE: Term)

    I have adjust te wheel as far as it will go towards the plus side and still loss about 2 minutes a day. Is this normal, if not what are my options now?

  10. #10
    Forums Administrator harold bain's Avatar
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    Default Hermle time adjustment (RE: Term)

    Term, your clock needs service. How far do you want to go yourself? You can get a new movement identicle to the original for this clock for a reasonable price.
    Harold
    harold bain, Member ch 33
    "If it won't "tick",
    let me "tock" to it"

  11. #11
    Registered user. bchaps's Avatar
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    Default Hermle time adjustment (RE: Term)

    Term...I think Harold is correct. I have a carriage clock with the same movement. It's now losing 15 minutes per week. It needs to be cleaned and lubricated. Since this is a three-train movement (Time, Strike and Chime), this is not the movement to begin your clock repair adventure. If you have an interest in clock repair, buy an old time only clock with a decent movement such as Seth Thomas and start your adventure at that level. There are lots of good books to help a beginner and this board will come to your rescue when you're stuck. (been there many times). Best Wishes, Bill
    Bill...
    Member Chapter 1

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