Lost Motion and Touchweight

[Richard Brekne]

Before you start potentially compounded the problem, you perhaps should be sure
that your customer is willing to be open minded about the touch of her piano. If
she wants is back like it was....period... then put it that way. Putting change
upon change can wind you up in a situation where you are going to have to do a
complete touch weight overhaul on a piano and not get a dime for it.... all to
create some semblance of the origional touch sensation in a fashion the
technician deems more correct.

The tip about balance rail punchings is a good one, but you have to insure the
cut off edge stays put and doesnt turn to face sideways or some other
direction... which for some reason I do not really understand can happen.

Cheers

RicB


Greg Newell wrote:

> Patrick,
>          In a very informative class from this years convention Jack Wyatt
> talked about lightening the touch on an upright. He proved on an action
> model how cutting off the front third of the balance rail cloth punching
> lightened the touch by about 4 grams! The first thing I would probably try
> other than that is to weaken the damper spring making sure that the damper
> head still follows the string when the string is pushed away toward the
> plate. Hope this helps!
>
> Greg
>

--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html