Damper Spring Tensions

[Roger Jolly]

Hi Alan,
                Regulate the end dampers in each section for tension and 
timing , remove action and place in cradle. Adjust damper wires so all 
damper heads are aligned.
Install action and double check your work tweek as required.

Regards Roger


At 12:21 AM 10/8/2003 +0100, you wrote:
>No I haven't finished yet;
>
>Today I had to work on an action  (upright piano) where a previous
>technician had stiffened the damper springs so much that the sustain pedal
>could hardly be depressed; if the set-up was left like this, something was
>bound to break sooner or later. While working on the springs, I found it
>tricky to gauge the tensions and get them all fairly even. I was judging the
>tensions in each spring by feel only. Is there a specific method in
>measuring spring stiffness or is it just another art?
>
>Regards
>Alan Forsyth
>Edinburgh
>
>
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