Action Spread Measurements

[Farrell]

Yes, your observations are correct that you can't use the old bracket/rail positions to set the new bracket or rail location. I have the data somewhere, but not in front of me, Young Chang can provide it - up to a certain year or serial number the action spread should be set to X, after that time/serial-number the action spread should be set to Y. YC provides that data on a sheet that should be included with the brackets you received from them.

You are right though, forget what you have - it is warped way out of spec. Put the new brackets in, set your action spread, check and adjust bracket height and go from there.

Don't forget to sell the piano owner a full regulation - a.k.a. Cha-ching!$!$!$!$

Terry Farrell
  ----- Original Message ----- 
  From: Arbeau Piano 
  To: pianotech at ptg.org 
  Sent: Saturday, July 07, 2007 9:15 PM
  Subject: Action Spread Measurements



  Subject: Action Spread Measurements


  I have started my first of several grands YC Brackets to replace......This one has had previous regulations to compensate for the expanding brackets issue. The hammer flange screws barely cleared the bottom of pinblock getting it out of the piano!

   At first I was very careful to remove one bracket at a time and install that new bracket before moving on to the next one .....but now, I realize that was not practical as the brackets have changed/distorted over the years and so has other relationship deminsions over the years, SO......

  "Where do you find the measurements for action spreads listed?" 

  This piano action  is from a WG57 (Weber) model and currently measures 114mm on both ends! (This is after I have replaced all brackets with the new ones.) Okay, tell me this way off??!!!

  Thanks for you knowledge!
  Jerry Arbeau
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