[pianotech] Weekend puzzler

[Avery]

Jack rubbing on the rep window? Because of a bent centerpin. Grabbing at straws here but haven't seen that mentioned.

Avery

On Jul 16, 2011, at 10:29 AM, "Delwin D Fandrich" <del at fandrichpiano.com> wrote:

> Hammer butt felt? This is a concert grand piano.
> 
>  
> 
> 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
> 
>  
> 
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Gregor _
> Sent: Saturday, July 16, 2011 2:12 AM
> To: pianotech at ptg.org
> Subject: Re: [pianotech] Weekend puzzler
> 
>  
> 
> Hammer butt felt too thin?
> 
> Gregor
> 
> ------------------------
> piano technician - tuner - dealer
> Münster, Germany
> www.weldert.de
> 
> 
> From: del at fandrichpiano.com
> To: pianotech at ptg.org
> Date: Fri, 15 Jul 2011 23:09:28 -0700
> 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
> 
>  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20110716/f6fe70cb/attachment.htm>