Heavy action

[Dave Swartz]

Mark, what is the upw?...the variation you mentioned I believe can be
attributed to two factors...Inconsistent pinning (ie. jacks-2 grams, rep
levers- 5 grams, whip flanges-screw should drop it with a light tap) and
Hammer Stike Weights (individual).  Removing weight from the hammers,
smoothing out the strike weight will make a significant difference, but the
friction factor should become even for consistent results.

Dave Swartz, RPT
dms2000@majesticpiano.com


At 03:59 PM 10/29/98 -0500, you wrote:
>I have a customer who just purchased a Young Chang. It seems pretty nice
>to me. She complains that the action is heavy (previous piano was a
>Baldwin console). This piano is a small grand, I'm sorry I can't remember
>the model at the moment.
>
>Downweight is about 55 grams, with variation. All aspects of regulation
>seem fine. All action centers seem normal. Key bushings fine. Damper
>action is nice and free. The jack-to-knuckle friction seemed excessive,
>but I tefloned the knuckles and adjusted the repetition levers somewhat
>and they seem normal now. I am a big guy, but I can also feel some
>heaviness, now that she mentions it. She has some arthritis.
>
>I have saved and read the recent Stanwood and everybody posts, and realize
>it's not always an easy fix. But in this case I'm wondering if removing
>hammer mass wouldn't be adequate. The hammers are completely untapered,
>and there's lots of wood that could be removed. I have done this on other
>grands with good results. Is this a reasonable diagnosis? Are there
>factors I'm missing?
>
>Thanks,
>Mark Graham
>Baldwin-Wallace Conservatory of Music
>Berea, Ohio
>
>
>