Blubber Pluzzler

[Dave Bunch]

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This is an odd one....A clue- The notes involved are the first 4 in the =
tenor section and no others.

Dave Bunch
  ----- Original Message -----=20
  From: Alan Barnard=20
  To: Pianotech=20
  Sent: Friday, November 04, 2005 11:48 AM
  Subject: Re: Blubber Pluzzler


  Damper heads misaligned, hammers brushing or hitting them?

  Alan Barnard
  Salem, Missouri


    ----- Original Message -----=20
    From: Dave Bunch=20
    To: Pianotech
    Sent: 11/04/2005 11:17:37 AM=20
    Subject: Re: Blubber Pluzzler


    No, but the dampers are involved in the problem.

    Dave Bunch
      ----- Original Message -----=20
      From: Mark Ultsch=20
      To: Pianotech=20
      Sent: Thursday, November 03, 2005 11:27 PM
      Subject: Re: Blubber Pluzzler


      Damper lever spring way too tight causing the wippen to want to =
rotate and keep the jack tucked under the hammer butt??

      If I'm way off base, feel free to enlighten me.

      I actually like to have customers watch my diagnostic work.  It =
gives me an excuse to use one of my better diagnostic methods: talking =
to myself.

      Mark Ultsch
      Madison
        ----- Original Message -----=20
        From: Dave Bunch=20
        To: pianotech@ptg.org=20
        Sent: Thursday, November 03, 2005 6:54 PM
        Subject: Blubber Pluzzler


        Hello-

        Blubbering (double striking) hammers in a vertical are not all =
that uncommon, but today I found a cause that I don't remember seeing =
before.

        It was a new Baldwin Hamilton studio sized piano. The customer =
was complaining that several notes in the low tenor area were not =
sustaining. When I got there I found that these few notes were double =
striking and sounding like they were blocking when played lightly. =
Actually anything up to a light/moderate keystroke.

        I checked the position of the let off rail and regulation in =
general. So far things looked fine. Moving the key down slowly produced =
let off at about 1/8" and there was sufficient key dip for plenty of =
after touch. Back checking was fine. I went to the worst one and to =
satisfy my curiosity, cranked the button down to where let off was about =
1/2". This changed nothing. The hammer was still bouncing off the top of =
the jack. Only on a very firm stroke would everything cycle through as =
it should. Most of the piano was just fine. It was these few notes.

        Well, it only took about five minutes to figure it out, but it =
was a long five minutes with the customer watching. Anyone want to guess =
on this one?

        Dave Bunch


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11/3/2005



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