Don't Know Jacks

[Kerry Cooper]

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Add...Grain of leather running wrong way
        Leather split and catching jack
  ----- Original Message -----=20
  From: Kevin E. Ramsey=20
  To: Pianotech=20
  Sent: Friday, February 28, 2003 12:04 AM
  Subject: Re: Don't Know Jacks


  You forgot one,,,,,,,,  Hammer checking too far back..
    ----- Original Message -----=20
    From: J Patrick Draine=20
    To: doepkeb@comcast.net ; Pianotech=20
    Sent: Thursday, February 27, 2003 6:46 AM
    Subject: Re: Don't Know Jacks


    Well, Off the top of my head:
    (1) Tight jack flange pinning.
    (2) Tight wippen flange pinning.
    (3) No (or insufficient) lost motion (ie capstan cranked too high).
    (4) Lousy (fuzzy) buckskin substitute necessitating extra lost =
motion.
    (5) Weak or broken jack spring.
    (6) Glue joint between jack flange & wippen broken & jack wanders =
side=20
    to side & up & down.
    (7) Jack flange pin loose & has wandered out, with pin rubbing =
against=20
    neighboring jack flanges.

    Well, that's a start isn't it?

    Patrick Draine
      On Thursday, February 27, 2003, at 08:30  AM, Brian Doepke wrote:

    > What are the top 5 reasons why a jack won't return under the =
hammer=20
    > butt
    > in an upright action?
    >
    > =3Dstill a novice=3D
    >
    > Brian Doepke
    > doepkeb@comcast.net
    >
    > _______________________________________________
    > pianotech list info: https://www.moypiano.com/resources/#archives
    >

    _______________________________________________
    pianotech list info: https://www.moypiano.com/resources/#archives
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