Frozen or Binding regulating screws

[Paul]

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Arnie
I have had great success heating the regulating screw with a soldering =
pencil. Remove the rail if possible and practical. If the regulating =
screw is the eyelet type, place the heated tip of the pencil in the =
eyelet. Apply a little "turning" pressure. As soon as it moves, remove =
the soldering pencil and oscillate the screw a few times . Placing the =
pencil on top of the screw will work, also, but you need to be more =
careful. Reshape the soldering iron tip to fit the screw slot. Check for =
rotation often. Too much heat will leave the screw permanently loose. =
Good luck!
=20
Paul Chick=20
  ----- Original Message -----=20
  From: arnie=20
  To: pianotech@ptg.org=20
  Sent: Friday, July 28, 2000 8:02 PM
  Subject: Frozen or Binding regulating screws



  Hi, List.=20
  =20
  I have just finished inspecting the action of an old Hallet & Davis =
baby grand. (The serial number seems to have been long ago obliterated =
but I'm guessing it's about 60-70 years old.)  The piano was just =
"rebuilt" but the "rebuilder" didn't bother to regulate the action. This =
action isn't a little out, it's grossly out! Perhaps the reason it =
wasn't regulated is that most of the regulating screws are binding so =
badly I think they would break, or worse - strip the holes if they were =
turned any large amount.=20
  =20
  I will shortly be attempting to regulate this action. I'm looking for =
any experiences out there with techniques to free up  binding regulating =
screws. It has been suggested that I try pin-point applications of =
Proteck's Prolube liquid, which I will. But I would like to have more =
than one card up my sleeve before I start this job. Can anyone suggest =
other approaches?  I thought of  Liquid Wrench, but would it harm the =
action?
  Thanks,=20
  =20
  Arnie
  Arnold D. Moss
  Associate Member, PTG


  arniex@earthlink.net

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