turning front rail pins....always a no-no?

[Farrell]

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Good points Ed. You are correct. My comments were more directed at the =
pins I see that have been turned 45 degrees. Although I have to admit, I =
had never really thought about the small adjustment technique you =
describe. Probably why my comments were rather black-and-white. Sounds =
like a handy technique. Thanks.

Terry Farrell

----- Original Message -----=20
From: <A440A@aol.com>
To: <pianotech@ptg.org>
Sent: Wednesday, December 17, 2003 8:33 AM
Subject: Re: turning front rail pins....always a no-no?


> Jim writes:=20
> << Can turning front rail pins be over done?....of course it =
can...just like=20
> anything else we do and there are those who over do everything and =
wonder why=20
> they have problems.......
>=20
>  Turning front rail pins, within judicial limits, is just as viable an =

> adjustment as say tweaking a back check or a damper or tilting a =
balance rail=20
> pin,=20
> etc., etc. >>
>=20
> Agreed,=20
>         (Oh, so I won't be misunderstood about this later,  any person =
that=20
> can't turn or bend a front pin without nicking the bearing surface is =
basically=20
> a clod and should work on something like landscaping or garbage =
pick-up=20
> instead of pianos! )=20
>=20
>    I have turned pins, to good effect.  If they are too far gone, that =

> usually involves the balance rail hole and that bushing, so I usually =
let=20
> well-enough alone.  In other cases, it can make a dramatic effect.  =20
>    Consider a normal pin, it has .140" width in the middle, tapering =
off to=20
> approx. .060" at the thinnest edge.  When you turn this pin, it only =
takes a=20
> few degrees to restore .140" width, and the contact area will be the =
same as=20
> new, touching the bushing in new locations just fore and aft of the =
old "center"=20
> of the pin. If the bushings are totally wallowed out, this will often =
not=20
> begin to change the tightness of the key until you have turned the pin =
past the=20
> point of maximum contact.  If you turn them past , you begin reducing =
the=20
> contact surface and wear is very rapid.  I consider that damaging to =
the piano and=20
> won't do it. =20
>    As Ron said, the biggest liability with this procedure is customer=20
> cooperation later, and the right explanation going in will help that.  =
Otherwise, you=20
> may hear less noise from the keys rattling than you do from an =
exasperated=20
> customer that thought you rebuilt her keyboard the last time you were =
there to=20
> tune. =20
>=20
> regards,
>=20
>=20
>=20
> Ed Foote RPT=20
> http://www.uk-piano.org/edfoote/index.html
> www.uk-piano.org/edfoote/well_tempered_piano.html
>  <A =
HREF=3D"http://artists.mp3s.com/artists/399/six_degrees_of_tonality.html"=
>
> MP3.com: Six Degrees of Tonality</A>
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives
> 
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