pedal lyre screws are obsolete

[Mike Bratcher]

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I must not have read the original tread completely.  I guess I didn't =
realize that the backside of the bit needed to be modified to form a =
secondary cutter.  Maybe I should have read the entire thread.  I just =
remember I encountered this problem once installing a player system on a =
newer Chickering grand.  They use "T" nuts on the top of the keybed to =
fasten the lyre.  When I needed to move the lyre forward it took a =
little head scratching & tool modification to get the job done.

On a side note; that Chickering install was the most difficult I've ever =
done.  There was so little room in the action cavity to put my sensors =
and cords.
  ----- Original Message -----=20
  From: Marcel Carey=20
  To: Pianotech=20
  Sent: Sunday, December 21, 2003 1:50 PM
  Subject: RE: pedal lyre screws are obsolete


  Yes Mike, this works. It was described somewhere in the Journal in the =
80's (I think Suzan Graham had written this tip). The way the spade birt =
works you have to understand. The bit will cut from the shank side (you =
have to make a cutting edge on the OPPOSITE side of the tip of the bit). =
Then you insert the bit with the shank pointing down and protruding from =
under the keybed. Then you attach the drill to the bit and drill PULLING =
from under (kind of reverse drilling).

  Marcel Carey, RPT
  Sherbrooke, QC
    -----Original Message-----
    From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On =
Behalf Of Mike Bratcher
    Sent: 21 d=E9cembre, 2003 12:49
    To: Pianotech
    Subject: Re: pedal lyre screws are obsolete


    "...Next, drill out the holes where the screws were, also get a =
spade drill bit the size of the outside diameter of the "T" nuts, and =
make a cutting edge on the opposite side of the bit from the edge. That =
way you can use it to
    countersink the place to put the "T" nut in the key bed and be out =
of the
    way of the keyframe...."

    I don't think this will work.  You will need to get a right angle =
drill attachment to fit between the pinblock and the keybed.  I've done =
this before and I had to get a forsner bit and cut the shank off to a =
nub, and it was still tight.

    Mike Bratcher


    ----- Original Message -----=20
    From: "kenneth.gerler" <kenneth.gerler@prodigy.net>
    To: <Alpha88x@aol.com>; "PTG Forum" <pianotech@ptg.org>
    Sent: Sunday, December 21, 2003 9:15 AM
    Subject: Re: pedal lyre screws are obsolete


    > Julia,
    > When I ran into this problem, I went to the hardware store and =
bought some
    > bolts(after measuring the length needed to go through both the =
lyre and the
    > keybed) and "T" nuts (bolts the same diameter as the old wood =
screws). Next,
    > drill out the holes where the screws were, also get a spade drill =
bit the
    > size of the outside diameter of the "T" nuts, and make a cutting =
edge on the
    > opposite side of the bit from the edge. That way you can use it to
    > countersink the place to put the "T" nut in the key bed and be out =
of the
    > way of the keyframe. Slip the bit into the hole (you previously =
drilled)
    > from the top of the keybed, attach you drill to the bit hanging =
down from
    > the keybed and drill a depth that will allow the "T" nut to clear =
the
    > keyframe when it is reinserted. This repair will make the lyre =
like a lot of
    > the new pianos being produced today and should last the lifetime =
of the
    > piano.
    >=20
    > Ken Gerler
    > ----------------------------
    > originial message
    >=20
    > greetings,
    >=20
    >             I recently took on a job for a small church with a =
Hazelton
    > Brothers 6' grand that the pedal lyre just fell off, because the =
lyre sticks
    > came
    > out at one unknown time a long time ago and they kept using the =
piano,
    > pedals
    > and all. This caused the pedal lyre to "swing in the breeze" with =
use and as
    > a
    > consequence, the whole pedal lyre fell off because the screws were =
worked
    > loose from use.
    >=20
    >              Removing the remaining 2, (of 4)  5/16" diameter x 2 =
3/4" long
    > screws resulted in a search for replacements only to find they are =
no longer
    > made. Does anyone know where I can obtain such obsolete fastners? =
Someone at
    > a
    > hardware store mentioned a place named Constantine's in New York. =
Has anyone
    > heard of this place? The national 1-800 directory assistance has =
no phone
    > number
    > on them and typing in www.constantine results in web page under =
construction
    > message, so I cannot even be sure if this is the right constantine =
company.
    >=20
    > thanks,
    > Julia Gottschall
    > piano rookie,
    > Reading, PA
    >=20
    >=20
    > _______________________________________________
    > pianotech list info: https://www.moypiano.com/resources/#archives 
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