[pianotech] hammer issue

[Greg Newell]

Steven,

                By the time you read this you’ll probably already have your
answer. My criteria for repetition lever spring tension is to have the
hammer fully rise to the point of letoff without jumping. This presupposes
that the pinning is good all around. It won’t happen this way if it’s not.
The rise should be slow but sure. Does this help?

 

Greg Newell

Greg's Piano Forté

www.gregspianoforte.com

216-226-3791 (office)

216-470-8634 (mobile)

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Steven Hopp
Sent: Thursday, October 08, 2009 12:19 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] hammer issue

 

Patrick and all,
 
Thanks.  Spring strength is good.  I strengthened the springs before the
regulation began.  The rise is still good. This was not a problem before I
made the last adjustements mentioned.  Have I just gone too far the other
way perhaps?  Aftertouch feels good but repetition now is compromised or
defeated?
 
Steven
 

  _____  

From: pcpoulson at sbcglobal.net
To: pianotech at ptg.org
Date: Thu, 8 Oct 2009 08:44:14 -0700
Subject: Re: [pianotech] hammer issue

Steven: Check the springs. You have to have sufficient spring strength to
get reliable repetition. You may have to clean the spring grooves as well as
strengthen the strings.

Patrick C. Poulson
Registered Piano Technician
530-265-1983

 

  _____  

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