[pianotech] Repeat breakage

[Arlie Rauch]

Thanks for the tips.  When I return to the school, I will use them.
Arlie

On Mar 31, 2009, at 3:59 AM, pianotech-request at ptg.org wrote:

> -----Original Message-----
>
> Why would the same string keep breaking?
>
> I service a Kawai upright model NS-20A made in 1991.  The longer
> wound string for F21 has broken repeatedly the last few years--always
> the same string.  The hammer seems perfectly mated to the strings.  I
> lightly filed the bar in case something was kinking the string there,
> so we'll see if that helps.
>
> The piano otherwise seems to be getting looser.  It doesn't hold its
> pitch as well as it previously did.  And its plastic dowel capstans
> are so loose that I need to frequently adjust them.
>
> Arlie Rauch
> Glendive, MT
>
> ------------------------------
>
> Message: 5
> Date: Tue, 31 Mar 2009 00:01:56 -0400
> From: wimblees at aol.com
> Subject: Re: [pianotech] Repeat breakage
> To: pianotech at ptg.org
> Message-ID: <8CB7FCC9192767C-52C-1E29 at webmail-da09.sysops.aol.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Arlie
>
> Capstans that need to be adjusted frequently, and repeated string  
> breakage, might indicate continuous loud playing.
>
> For the capstans, try putting several drops of thin CA glue on  
> them, with the key upside down. For the broken string, decrease  
> hammer blow and increase let off on just that note, and see if it  
> makes a difference.
>
>
> Willem (Wim) Blees, RPT
> Piano Tuner/Technician
> Mililani, Oahu, HI
> 808-349-2943
> Author of:
> The Business of Piano Tuning
> available from Potter Press
> www.pianotuning.com
>