Bent click spring help !!!

Discussion in '400-Day & Atmos' started by JON1964, May 24, 2014.

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  1. JON1964

    JON1964 Registered User

    Jan 7, 2014
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    Hi I have recently got hold of a Franz Hermle clock, which wasn`t winding - I thought that the mainspring was bust, but on inspection it appeared that the click spring was bent. I have carefully straitened the spring and reinstalled the mechanism. See before and after photo`s.
    Now I can wind the mainspring about 1 turn to get some force into the clock, but I think the click spring is now weakened, so that as the mainspring tensions up the click is not pressing firmly against the ratchet wheel and thus slipping.

    Any suggestions ??
    Could I get hold of a new click spring or is it worth trying to strengthen or bend the click spring more ??

    Thanks Jon
    P1040043 resize.jpg P1040049 resize.jpg
     
  2. shimmystep

    shimmystep Registered User

    Mar 5, 2012
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    If there is no sign of metal fatigue under mag, and it feels like it's offering good spring return, open up the U a little for more return I'd then probably call it good. If there's any suspicion of weakness though I'd replace. Metal can only be bent so much before the structure breaks down. They are easily bought and for a few pence...
     
  3. shutterbug

    shutterbug Moderator
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    Oct 19, 2005
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    Looks like you're heading for a painful bruise on your thumb. The spring looks weak at the center point to me. I'd get a new one.
     
  4. JON1964

    JON1964 Registered User

    Jan 7, 2014
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    Thanks shutterbug - got to put an order in for some suspension wires so will also see if I can get hold of one.
    Springs easy to replace thumbs not !!
    Any recommended sites that will ship to UK ?
    Jon
     
  5. Kevin W.

    Kevin W. Registered User
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  6. JON1964

    JON1964 Registered User

    Jan 7, 2014
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    Thanks Kevin
     
  7. Patch

    Patch Registered User

    May 11, 2010
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    When in doubt, throw it out.
     
  8. Kevin W.

    Kevin W. Registered User
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    Apr 11, 2002
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    For the price of a click spring, buy a new one. Ir get a good replacement.
    Most of us know the pain that goes with this.
     
  9. ddMbb

    ddMbb Registered User

    May 9, 2014
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  10. JON1964

    JON1964 Registered User

    Jan 7, 2014
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    Thanks Darius.
    Used Cousins before, think they have the one I need.
     

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