[pianotech] grand dampers

[David Ilvedson]

Thanks...is this downloadable?   I haven't done a back action yet...

David Ilvedson, RPT
Pacifica, CA  94044

----- Original message ----------------------------------------
From: "Jon Page" <jonpage at comcast.net>
To: pianotech at ptg.org
Received: 3/10/2010 4:16:38 AM
Subject: Re: [pianotech] grand dampers


>>I've been considering getting a gram gauge for measuring damper 
>>lever weight/spring tension.
>>Is there a "normal" amount of weight/tension a grand piano?   For 
>>instance a Steinway D?

>I adjust the tension of the assist springs with a gram scale.
>In the pamphlet for the Renner Back Action Kit, there is
>a recommended tension scale.
>-- 

>Regards,

>Jon Page