[pianotech] help needed with Hamilton

[Dean May]

If the damper felts are a little noisy that is no doubt why you are getting
ringing. Either replace the bass felt or scrub the old ones with a sonic
toothbrush.  The felt is cheap enough. Replace it.

 

Hammer springs too stiff will also cause your heavy touch. Dislodge the
hammer springs and see how that affects it. If you like the results, remove
the hammer spring rail, bend the springs down "some", replace the rail, test
the results. It's not difficult and the results can be dramatic. 

 

Dean

Dean W May                (812) 235-5272

PianoRebuilders.com    (888) DEAN-MAY

Terre Haute IN 47802

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of wimblees at aol.com
Sent: Monday, February 15, 2010 8:47 PM
To: Pianotech at PTG.org
Subject: [pianotech] help needed with Hamilton

 

This is a 40 year old Hamilton. There are two problems. The action is heavy.
Everything is regulated the way it is supposed to be. The only thing I can
figure out is that the damper springs are too strong. But that leads me to
the second problem. Although each note dampens, there is a general after
ring in the whole piano. I can get it to stop by putting my hands on the
bass string. What I'm afraid of is if I weaken the damper springs, the after
ring will get worse. The damper felts are OK, a little noisy, but nothing
unusual. I did have to replace one damper flange because the spring had
broken due to rust. 

Any ideas?

 

Willem (Wim) Blees, RPT 
Piano Tuner/Technician

94-505 Kealakaa Str. 

Mililani, Oahu, HI  96789
808-349-2943 

www.Bleespiano.com <http://www.bleespiano.com/> 
Author of: 
The Business of Piano Tuning 
available from Potter Press 
www.pianotuning.com

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