[pianotech] Chickering Pedal Lyre

[Greg Newell]

You can't use this method where the screw is drilled in at an angle. The
best and easiest solution is to plug and redrill. Use pin block material for
a lasting repair.

Greg Newell
Greg's Piano Forté
www.gregspianoforte.com
216-226-3791 (office)
216-470-8634 (mobile)
http://www.wealthyaffiliate.com?a_aid=NNaYfMKd

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of David Ilvedson
Sent: Wednesday, January 27, 2010 2:30 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Chickering Pedal Lyre

Definitely drill through and use the T-nuts.   I will remove a little keybed
material, ala bowl shaped so the female is pull down into the keybed.   You
will need a bunch of lengths...I can't remember the size I use. ...maybe
5/16.   Have lots of washers so you don't have the bolt coming up above the
keybed.   

David Ilvedson, RPT
Pacifica, CA  94044

----- Original message ----------------------------------------
From: "Paul Milesi" <paul at pmpiano.com>
To: pianotech at ptg.org
Received: 1/26/2010 11:12:27 PM
Subject: [pianotech] Chickering Pedal Lyre


>I¹m having problems with 2 older Chickering grands, one a 1917, the other
>from the 30s.  The original design attaches their lyres to the underside of
>the keybed with two large wood screws put in at an angle of not quite 45º,
>and the screws seem to strip out.  When I first encountered this design, I
>almost couldn¹t believe it was used.

>What¹s the best fix for this?  In both cases, previous techs have tried
>using larger screws, different angles, different locations, etc., and now
>the underside of the keybed is gouged.  I¹ve read about drilling through
the
>keybed from the top and countersinking, maybe with a washer, and using a
>nut-and-bolt approach?  In any case, I don¹t think replacing wood and
>reproducing the original design is desirable.

>Specific guidance appreciated: limited woodworking experience.  Thanks!

>Paul Milesi, RPT
>Washington, DC
>(202) 667-3136
>E-mail:  paul at pmpiano.com
>Website:  http://www.pmpiano.com