[pianotech] Old Kranich and Bach Grand

[pmc033 at earthlink.net]

Years ago, I used CA glue to attempt to repair some S&S jacks that had
become loose.  It worked, or at least it did for a while until I visited
the piano a few months ago.  Many of the jacks were failing.  With this
experience, I would not recommend using CA glue on wood joints.  It
penetrates the wood, making it doubtful that subsequently using wood glue
would create a reliable bond.  The glue that Coleman sells, which is a
combination epoxy/CA, might work, but in any case I would disassemble the
parts, apply the glue, and reassemble them.  Dripping thin CA glue might
fill the gap, but a good bond with thin CA glue never worked well for me.
	YMMV,
	Paul McCloud
	San Diego


> [Original Message]
> From: Dean May <deanmay at pianorebuilders.com>
> To: <pianotech at ptg.org>
> Date: 07/25/2009 6:15:03 PM
> Subject: Re: [pianotech] Old Kranich and Bach Grand
>
> Spray first with accelerator, wait a minute, then a tiny drop of thin CA
on
> all the joints. Problem solved. 
>
> Dean
>
> Dean May             cell 812.239.3359 
>
> PianoRebuilders.com   812.235.5272 
>
> Terre Haute IN  47802
>
>  
>
> -----Original Message-----
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On
Behalf
> Of Clark A. Sprague
> Sent: Saturday, July 25, 2009 8:35 PM
> To: pianotech at ptg.org
> Subject: [pianotech] Old Kranich and Bach Grand
>
>   
> Hi, all!  It sure was nice to see a lot of you at Grand Rapids, and to put
> faces with names.  What a great resource this list is.
>     That said, I went to an old Kranich and Bach grand today, that had the
> board shimmed, new pinblock, new hammers with shanks and flanges.  But,
> alas, not new whippens.  The old things are letting go glue joints,
notably
> the jack tenders.  Whoever did the job meticulously replaced all those
> notorious little spring cords, but now glue joints are failing.
>     Having talked about new whippens with the customer,  nothing in the
> Renner kit works, or the Pianotek catalog, or the new WNG kit so
graciously
> given out in GR.  It seems that the K&B whip is shorter in the distance
from
> the flange center to the jack center.
>     Anybody ever modify whips to accomplish the task?  Or what?   Besides
> the obvious answer of a match and some flammable liquid!  Customer seems
to
> want to spend the money.
>  
> Clark A. Sprague, RPT
> csprague4 at woh.rr.com
>      
>     
>