[pianotech] Seiler 53" (135 cm) Upright 1997

[Dale Erwin]

Tom
  I find the damper spring tension on most modern uprights waaay too stiff and if they lift early its oh so unbearable.  We installed a whole raft of new Kawai/ Yamaha and some Korean pianos in a school last year and we weakened the damper springs on every single one with great improvements to the touch. 

 

 

Dale S. Erwin
www.Erwinspiano.com
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-----Original Message-----
From: Thomas Cole <tcole at cruzio.com>
To: Pianotech <pianotech at ptg.org>
Sent: Fri, Oct 22, 2010 12:32 am
Subject: [pianotech] Seiler 53" (135 cm) Upright 1997


            I tuned a wonderful-sounding but      poorly-regulated Seiler today. The owner and 8-year-old daughter      both report the touch is too heavy. When I tried the piano, it was      hard to play pp passages without notes dropping out here and there      and, yes, it felt heavy.
      
      There is a card on one side showing the regulation specs. Notes 1      - 34 have 56g (DW) and 35 - 88 have 54g. I found that most of the      keys had four leads behind the balance rail (half leads, two on      each side). The few keys I checked, with the wippen raised, the      lead weights seemed to be balancing the front weight of each key  (see two photos below showing both sides of C4).
    
      All of the dampers are timed very early (dampers move after a      couple of mm hammer travel).
      
      My question is, what would be the most technicianly way of      reducing touchweight? Anything I need to know about this      particular piano?
      
 

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