Leading Vertical Dampers

[antares]

Usually, dampers should be ok, even after a long time, and let us assume
that they were doing well from the beginning.
When they are not doing well anymore, we could assume that some other things
are  out of line so to speak.
What could be out of line?
Indeed, center pins, but also the last lousy tech who tried his luck.
So....
A thorough check up of the centers, a damned good regulation end a perfect
damper job.
Then lets talk again Ricardo mio....


friendly greetings
from

Antares,

Amsterdam, Holland

"where music is, no harm can be"

visit my website at :  http://www.concertpianoservice.nl/


> From: "Richard Brekne" <richard.brekne@grieg.uib.no>
> Reply-To: pianotech@ptg.org
> Date: Mon, 03 Jun 2002 21:47:04 +0200
> To: "PTG" <pianotech@ptg.org>
> Subject: Leading Vertical Dampers
> 
> Hi folks
> 
> I have decided to give this idea a try and see how it goes, and thought I
> might
> both seek advice as to just how much lead to add to the dampers and at the
> same
> time give a sort of before and after story of the action for everyones
> edification.
> 
> This action is from an approximately 70 year old  Rønish full sized upright.
> Damper felt is origional, dirty but not crusty......should actually do the job
> well enough but doesnt. Springs are on the weak side for sure, and I think I
> will have to change centers on the lot... but I will know that tommorrow. In
> anycase the whole piano sings through the damper system quite a bit and for a
> good long time. Seems pretty evenly distributed through the whole system but
> the bass is a bit more active then the rest predictably enough. Still a
> noticeable drop in the problem when any section of the damped strings is muted
> by hand.
> 
> Anyways I thought about giving Dels advice a whirl on this one and am asking
> for input as to how heavy the damper heads should be.
> 
> RicB
> 
> Richard Brekne
> RPT NPTF
> Griegakadamiet UiB
> 
>