[pianotech] regulation tool : too wide

[David Nereson]

  ----- Original Message ----- 
  From: KeyKat88 at aol.com 
  To: pianotech at ptg.org 
  Sent: Wednesday, February 25, 2009 5:20 PM
  Subject: [pianotech] regulation tool : too wide


  Greetings,

            Going to make the adjustment of jack to knuckle, I find the neck/shank of the screw adjustor tool, too big in diameter to fit between the let-off buttons. The let-off buttons on this Young Chang grand are the dowel type. I've tried slipping the tool's shank from the bottom up, in-between the let-off dowels, but geesh, there's just no room!  Is there a better tool for this? If so, who sells it?

  Julia Gottshall
  Reading, PA    


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    Not that I know of.  I remember encountering the same problem on Yamahas a long time ago.   I took my regulator from APSCO or Schaff and carefully thinned the shank on a grinding wheel, working it back and forth while turning at the same time, and dipping it in water often so as not to overheat.  I just kept checking the thickness until it fit between the regulating buttons. 
    Yes, I suppose it weakens the shank of the tool a bit, but in 30 years, it still hasn't broken.  
    In some actions, if the buttons are down on their screws far enough, the tool with the regular thickness shank will fit through, above the tops of the buttons, but you can't always rely on that since sometimes they're already turned up as far as they'll go.  
    Maybe there's a Yamaha-specific tool, but it probably costs $50.
    --David Nereson, RPT 
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