Damper TouchWeight

[Linda Stråhle]

Hi Terry,

Reading in my old pianotech book it says:
For newer pianos damperspring weight is in the bass about 100 grams, midpart
about 90 grams and in the treble about 70-80 grams. You measure this with
the action out on your work bench with the action on it´s back. You take the
measurement on the woodpart of the damper just under the thread.
If you think the spring is too strong just loosen it a little. Just beware
of that if you loosen them too much the piano may start "ringing". Well,
you´ll see what happens.

greetings
from
Linda Strahle
Sweden




-----Original Message-----

Subject: Damper TouchWeight


I tuned a 1970s Everett Studio the other day. With sustain pedal depressed,
DownWeight was around 50 to 55 grams. Without depressing the sustain pedal,
the touchweight skyrocketed to about 95 grams. Clearly this is toooo
"heavy". Are there any guidelines for both verticals and grands for how much
downweight the dampers should add??? Thanks.

Terry Farrell