CAUT

  • 1.  String breakage.

    Posted 07-01-2019 14:51
    Over the years I’ve observed a direct correlation of string breakage to long string cuts on the hammer crown. Maintain the correct hammer profile, year in and year out, while removing little as possible or nothing from the crown. String fatigue will be eliminated as a contributing factor, and string breakage will be a rare occurrence.

    Sent from my iPhone


  • 2.  RE: String breakage.

    Registered Piano Technician
    Posted 07-01-2019 16:29
    Paul,

    I would say that string fatigue is mitigated significantly by maintaining optimal hammer shape, but don't know that I would go so far as to say that it is eliminated.

    Re: the OP: an argument can be made for restringing the treble as soon as the first string breaks (because others have, by then, been weakened and, I suspect, become out-of-round at the point where they contact the capo, which hinders string rendering).

    Alan

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    Alan Eder, RPT
    Herb Alpert School of Music
    California Institute of the Arts
    Valencia, CA
    661.904.6483
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  • 3.  RE: String breakage.

    Registered Piano Technician
    Posted 07-02-2019 07:12

    I usually wait to restring the treble (capo section) after 3 or 4 break, but as you mentioned, keeping good hammer shape will help keep breakage down quite a bit. Big grooves in the hammers will shorten the life of a string a lot!

     

    Happy stringing!

     

    Paul






  • 4.  RE: String breakage.

    Registered Piano Technician
    Posted 07-06-2019 16:23
    Beside the fact that it happens just as you say, does anyone know the REASON(s) for this?  Could it be that the added contact area causes the strings to convulse in unhealthy (vibratory) ways?

    Pwg

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    Peter Grey
    Stratham NH
    603-686-2395
    pianodoctor57@gmail.com
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