[pianotech] New piano key?

[Dale Erwin]

Dittos to Pauls comments.  We did a mass installation at a school. We weakened all the damper springs in Kawai, Yamaha and the new Pramberger uprights.  It makes a massive difference in touch and the dampers still work just fine.  Its obvious that no attempt was made in any of these to regulate spring tension.  Probably too expensive


Dale Erwin RPT-
 Mason & Hamlin/Steinway/U.S pianos
Pre-hung Ronsen hammer sets/Abel parts
Sitka Soundboards & Supplies
WWW.Erwinspiano.com
209-577-8397

 
  





-----Original Message-----
From: Paul McCloud <pmc033 at earthlink.net>
To: pianotech <pianotech at ptg.org>
Sent: Tue, Mar 20, 2012 8:58 am
Subject: Re: [pianotech] New piano key?


Hi, Seles:
I'm not sure about this model, as I haven't seen it, but if I were to guess, 
it's the damper springs.  It's an upright piano, right?  Yamaha pianos have the 
spring-and-loop arrangement on the hammer butts, so it's not likely to have 
overly strong springs there.  Unless there's too much friction in the key (not 
likely, or it would be sluggish).  So, what's left?  I've found on many pianos 
that the damper springs are too strong.  Strong damper springs are also likely 
to cause hammer bobbling on a light blow.  If that's a tendency, more than 
likely it's the spring tension.  You can use a Hart spring tool to bend them 
backwards and weaken those springs a bit.
Good luck.
Paul McCloud
San Diego

----- Original Message -----
From: "Seles" <seles_tinus at yahoo.com>
To: pianotech at ptg.org
Cc: pianotech at ptg.org
Sent: Tuesday, March 20, 2012 8:11:37 AM
Subject: [pianotech] New piano key?

Hi all, i just bought new yamaha piano Ju 109, but i feel the key a little bit " 
hard" when press the key, 
It's that normal for a new piano? Any solution to make a liitle bit light the 
key?
Thank

Seles
Regards

 
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