[pianotech] return spring

[Ryan Sowers]

This past year I broke one of those springs in an old Steinway trying to
weaken it with just my hands (I guess I don't know my own strength!<G>) The
good news was there was still enough of the spring's screw holes left where
I could attach half the spring to the piano and it worked just right! Since
then I bought a couple of replacements and will put one in next time I see
the piano.

Here's is a couple of pictures that Kent Webb from Steinway sent me of the
factory tool for this purpose. I put the pictures up on my website:
http://pianova.net/media2/shiftspringtool.jpg
http://pianova.net/media2/shiftspringtooldetail.jpg

Ryan Sowers

On Thu, Aug 16, 2012 at 5:00 AM, Tom Driscoll <tomtuner at verizon.net> wrote:

> **
> Wim,
>      I weakened a S and S return spring on a newish model B with a very
> sophisticated tool.
>   Placing the spring on a piece of scrap wood on the clients garage floor
> I whacked it flatter with a big ass hammer.
>    Two whacks ---  eight years ago and all is still well.
>  Tom Driscoll
>
> ----- Original Message -----
> *From:* tnrwim at aol.com
> *To:* pianotech at ptg.org
> *Sent:* Thursday, August 16, 2012 3:55 AM
> *Subject:* [pianotech] return spring
>
> I think I saw a tool that can reduce the tension of an action return
> spring. I don't remember what it looks like, but it bends the steel.
>
> I wonder if anyone has ever tried to stand on the spring to do the same
> thing?  Either stand on each end of the spring, or turn it around and stand
> in the middle.
>
> Hey, I weigh 240 pounds. Isn't that enough to bend the spring?
>
> Wim
>
>
>


-- 
Ryan Sowers, RPT
Puget Sound Chapter
Olympia, WA
www.pianova.net
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20120816/5748bd0f/attachment.htm>