Frozen hammer rail screws

[Richard Brekne]

---------------------- multipart/alternative attachment
Soldering iron works great. Heat em up.

RicB

Dave Nereson wrote:

>
>
>      ----- Original Message -----
>      From: Alan Forsyth
>      To: Pianotech
>      Sent: Sunday, June 01, 2003 3:18 PM
>      Subject: Frozen hammer rail screws
>       Paul Tizzard wrote,
>
>      >>"Last week I assessed a piano at a local school that has
>      all of the
>      hammer rail screws "frozen" in the rail. The school is near
>      the coast
>      and the piano is in their hall. There is definitely a lot of
>      moisture
>      around generally. Does anyone have any suggestions on how to
>      free the
>      screws? I know heat is going to be involved, but what tools
>      etc do you
>      suggest? Are there any other possibilities? ">>>>
>
>      Hello Paul,
>      When you have heated the screws, give them a short sharp
>      whack with the
>      screwdriver inserted using a small hammer. This may break
>      any bonding as
>      well. After doing this, apply pressure with the screwdriver
>      first clockwise
>      as if you were trying to make it tighter, and then apply
>      pressure
>      anticlockwise. Keep going forwards and backwards like this
>      until there are
>      wider and wider movements of the screwhead. You will get a
>      feel as to when
>      the screw is turning in the wood as against the head just
>      twisting. Also
>      there is a product there called Wynne's Pry and Dry. Give
>      those screws a
>      liberal dousing before you start.
>          (. . . . .
>      Regards
>      Alan Forsyth
>      Edinburgh
>      pianotech list info:
>      https://www.moypiano.com/resources/#archives     I suppose
>      Wynne's Pry and Dry is a British product and we can't get it
>      here in the U.S.  Anybody know an equivalent product we can
>      get stateside?  I need something for those frozen let-off
>      screws in old pianos.  I've tried heating.  They still
>      break.  I've tried Protek.  They still break.    --David
>      Nereson, RPT, Denver
>
>
--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html
http://www.hf.uib.no/grieg/personer/cv_RB.html


---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/61/d3/27/2e/attachment.htm

---------------------- multipart/alternative attachment--