[CAUT] Shimming the Steinway Action stack to reach the strings

[Chris Solliday]

And Jim is probably right in this case, as over 2 inches blow distance is alot. Not to mention that you say the drop screws are fully backed out. You may need different dimensioned parts. I guess the point is that we in cyberspace need alot more information from you before we can get specific.
Chris Solliday
  ----- Original Message ----- 
  From: James N. Hess 
  To: caut at ptg.org 
  Cc: caut at ptg.org 
  Sent: Friday, February 26, 2010 3:10 PM
  Subject: Re: [CAUT] Shimming the Steinway Action stack to reach the strings


  Often you are very limited on the amount you can raise the stack because of interference with the pinblock. My experience has been that you may be able to add 1/16". I think reboring the hammers is a better solution.

  Jim Hess, RPT

  On Fri, 26 Feb 2010 14:58:36 -0500 "Chris Solliday" <csolliday at rcn.com> writes:
    String Height minus Hammer Bore equals Shank Center Pin Height. We use laminated shim stock that we get from the local hobby store. Realize that just raising the pin height MIGHT work, but consider the arc of the hammer blow. You could end up with the hammer over centering if you simply raise the feet under the hammer flange pins. You need to imagine the pin in space and rotate the stack around it so that the stike point ends up at ninety degrees to the string. It might not be that now. Usually this means shimming the front foot slightly as well. Best of luck Andrew.
    Chris Solliday, RPT

      ----- Original Message ----- 
      From: Andrew Anderson 
      To: caut at ptg.org 
      Sent: Friday, February 26, 2010 12:45 PM
      Subject: Re: [CAUT] Shimming the Steinway Action stack to reach the strings


      Yes, mea culpa.  Wasn't really thinking the numbers...most likely 2"+ 


      On Feb 26, 2010, at 11:30 AM, reggaepass at aol.com wrote:




          The school whose Steinways I service is not satisfied with the dealer's warranty fix (greater then 1" blow distance).
        Andrew, 


        Not sure what you mean by this ("greater then 1" blow distance").  Did you mean greater than 2" (since it sounds like the strings are too high)?


        Alan Eder





        -----Original Message-----
        From: Andrew Anderson <andrew at andersonmusic.com>
        To: College and University Technicians <caut at ptg.org>
        Sent: Fri, Feb 26, 2010 9:13 am
        Subject: [CAUT] Shimming the Steinway Action stack to reach the strings


        The school whose Steinways I service is not satisfied with the dealer's warranty fix (greater then 1" blow distance). They are requesting that the piano be made to play like it should which will require shimming the stack so it is within reach of the strings (>1/4" between fully backed out drop-screws and pinblock). 
         
        Has anyone done this? What was the scope of work required? What is a reasonable amount of time to complete the work? 
         
        Thanks 
        Andrew Anderson 





  James Hess, RPT    
  200 W. Allen St.  
  Mechanicsburg, PA 17055
  717/580-1445 (cell)  
  www.hesspiano.com


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