[pianotech] Underlever Spring Tension Measurement

David Love davidlovepianos at comcast.net
Wed Jul 28 07:28:16 MDT 2010


What tension do you like that balances effective shut off and minimal touchweight differences  with and without the pedal.


David Love
www.davidlovepianos.com

-----Original Message-----
From: A440A at aol.com
Sender: pianotech-bounces at ptg.org
Date: Wed, 28 Jul 2010 08:46:02 
To: <pianotech at ptg.org>
Reply-To: pianotech at ptg.org
Subject: Re: [pianotech] Underlever Spring Tension Measurement

Greetings, 
    I set the underlever springs by measuring several along the length and 
marking them with a spot of chalk after setting them to the appropriate 
tension. Turning the whole assembly upside down, I give it a slight up and down 
shake.   It is easy to then set the entire rack to the index underlevers by 
simply pushing the levers down a little until they also move the same amount 
as my guides. 
Regards,

Ed Foote RPT
http://www.uk-piano.org/edfoote/index.html

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