Return spring removal

[Dave Bunch]

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Thanks John. This is the method that is working best for me. The new =
spring is now tightly in place even before the glue. Thanks for the =
info.

Dave Bunch
  ----- Original Message -----=20
  From: John Ross=20
  To: Pianotech=20
  Sent: Monday, January 24, 2005 1:01 PM
  Subject: Re: Return spring removal


  I usually grab lightly with the points of a pair of centre pin =
nippers, (Well in my case electronic wire cutters, from my days as an =
electronic organ tech.) and pull. They mostly always come out.
  On the really stubborn ones, that have broken under the surface, so I =
can't grab them, I use a Dremel tool, and a very small drill bit, or =
piece of piano wire, and follow it in. It will either push the wire out, =
or drill a small hole very close to the original.
  I do not replace them, by just pushing in and bending. If it is not =
already in with the two hole method, I make a new hole alongside the =
original. Then you thread it down one hole, bend it and feed it in the =
second hole, grab the end, pull and clip. It stays in place much better =
that way.
  Then just run your hide glue down.
  Oh yes, if the rail had a small piece of felt next to the coil, remove =
it, and wash the wood with acetone. The felt was contaminated, and =
caused the coil to corrode.=20
  Regards,
  John M. Ross
  Windsor, Nova Scotia, Canada
  jrpiano@win.eastlink.ca
    ----- Original Message -----=20
    From: Dave Bunch=20
    To: pianotech@ptg.org=20
    Sent: Monday, January 24, 2005 2:35 PM
    Subject: Return spring removal


    Hello all;

    I am in the process of removing and replacing all of the hammer =
return springs on a stencil console.

    Having the rail removed, more than half have broken due to =
corrosion. All but about 16 I could grab the spring coil, or whatever is =
left and pull it all out in one piece. The tail goes through a hole, =
bends back and lays in a slot.

    Is the any trick to removing the remains of the stubborn ones? =
Prying in the slot with a knife blade was not successful. I had to stop =
for the day to go do my tunings.

    Any ideas would be greatly appreciated. I find irony that in twenty =
years I have never had to do this :-)

    Thanks

    Dave Bunch


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