removing key pins

[Keith Roberts]

This is a multi-part message in MIME format.

---------------------- multipart/alternative attachment
Humidity is not a problem. It's been so dry here I had a hard time =
keeping the old bushings damp enough, long enough, for removal
Keith R
  ----- Original Message -----=20
  From: Isaac OLEG=20
  To: pianotech@ptg.org=20
  Sent: Thursday, September 05, 2002 5:31 AM
  Subject: RE: removing key pins


  Hi,

  I would suggest using a screwdriver or a dowel under a Vise grip =
pliers to act as a lever. May be using your torch to heat the pins can =
help them enough to move easily.

  When the pin have begin to move finish by hand taking care of pulling =
straight to avoid ovalisation of the hole.=20

  I believe it is possible to use a riveting tool, but the standard =
models are too small to hold the pin (balance pins) . Professional =
models - air driven - may do the job but are not cheap.

  Usually pins are very easy to pull off . using a drill I'll be =
concerned by heat production and big enlarging of the hole. Consider too =
the R.H. while doing the job, as for pinning, if you are on a very humid =
period the holding may be stronger (while difficult to ascertain when =
inserting the new pins)

  Regards

  Isaac OLEG


    -----Message d'origine-----
    De : owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]De la =
part de Keith Roberts
    Envoy=E9 : jeudi 5 septembre 2002 13:27
    =C0 : pianotech@ptg.org
    Objet : removing key pins


    The front rail pins being rusty around the base and swollen are so =
tight they are hard to even turn much less pull out. They are not =
drilled all the way through so removing the key frame and driving them =
out from the bottom is not an option. Any tricks? I am an ex =
plumber/pipefitter so I KNOW brute strength and dumb luck. I'm =
considering using my right angle drill. Since the pins are oval I =
shouldn't have to tighten up the chuck much to get them spinning.
    Keith R

---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/95/bf/1d/a9/attachment.htm

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