[pianotech] Weekend puzzler

[Bruce Browning]

What about worn knuckle (roller)?

On 16 July 2011 22:28, Tom Driscoll <tomtuner at verizon.net> wrote:

> **
> I,m reaching ,but capstan-whippen cushion problem ? Worn cushion ?
> Tom Driscoll
>
> ----- Original Message -----
> *From:* Delwin D Fandrich <del at fandrichpiano.com>
> *To:* pianotech at ptg.org
> *Sent:* Saturday, July 16, 2011 2:09 AM
> *Subject:* [pianotech] Weekend puzzler
>
>  The piano is a 1928 Chickering Model M, Scale 141 (small concert size).
> The problem is this:****
>
> ** **
>
> As the key is depressed slowly—*pianissimo*—for the first millimeter or so
> the key and hammer move smoothly. Then something starts binding, it feels
> like something in the action is dragging, holding the key and action back.
> After forcing the key down another three or four millimeters action becomes
> free and everything operates normally. On a medium to hard blow there is
> good power and the problem is hardly noticeable but at *pianissimo* the
> action will hardly play.****
>
> ** **
>
> What is the problem and what caused it?****
>
> ** **
>
> ddf****
>
> ** **
>
> Delwin D Fandrich****
>
> Piano Design & Fabrication****
>
> 6939 Foothill Court SW, Olympia, Washington 98512 USA****
>
> Phone  360.515.0119 — Cell  360.388.6525****
>
> del at fandrichpiano.com — ddfandrich at gmail.com****
>
> ** **
>
>


-- 
Bruce Browning
The Piano Tuner
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