[pianotech] return spring

[Al Guecia/Allied PianoCraft]

Yeah, good idea bringing a torch into someones home, and I'll play with that for about an hour until I get it right..

Al -
High Point, NC






On Aug 17, 2012, at 11:33 AM, Euphonious Thumpe wrote:

Why not just heat it up with a torch to get rid of some of the tempering? (A bit at atime---maybe trying with a simple heat-gun, first?)

From: Al Guecia/Allied PianoCraft <alliedpianocraft at hotmail.com>; 
To: <pianotech at ptg.org>; 
Subject: Re: [pianotech] return spring 
Sent: Fri, Aug 17, 2012 12:13:15 PM 

Yep! that's what I had mentioned to Wim. Had one, but don't know where it hid itself.

Al -
High Point, NC






On Aug 17, 2012, at 12:33 AM, Ryan Sowers wrote:

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


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