Pan screws in Steinway rails

[Dean May]

I use CA all the time to reinforce wood threads, like the screws that hold
down the stack. I like to spray accelerator first and let it dry for a
minute or two. Then a couple of drops of CA. The accelerator insures it all
sets up. Letting it dry for a minute or two before applying the CA delays
the set up and allows just the right amount to soak into the wood first. 

 

OTH, John Dewey is a great guy and does exceptional work if you want to go
that route. 

(217) 595-5535

861 E. 2900 North Road

Penfield, IL  61862-9603

jdent at soltec.net

 

That contact info is rather old but probably still good. 

 

Dean

Dean May             cell 812.239.3359 

PianoRebuilders.com   812.235.5272 

Terre Haute IN  47802

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From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Erwinspiano at aol.com
Sent: Monday, September 03, 2007 9:33 PM
To: pianotech at ptg.org
Subject: Pan screws in Steinway rails

 

  Happy Labor day

  I find our shop replacing parts routinely on many Teflon era Steinway
pianos. No matter what hammer shanks & flanges we use the pan screws seem to
teak the new flanges fore, aft, sideways etc. This creates all kinds of
traveling ,fun...etc.

    All new known parts suppliers have a flange that is substantially
thinner then the old gi-normously thick flanges. One danger is the screw
penetrating the bottom of the brass rail & splitting it out.,.. I've seen
this more than once. Yes a washer helps to avoid this. 

  My fix at this point is to replace the pan heads with a Renner/German
style screw.  The problem is this. On some, because the rails have a very
coarse thread already cut into them by the pan heads, the New screws often
will start to strip under modest torque.  Ughhh!

     If any of you have a better option I'd love to hear it. 

   On the next one I thought I'd try a few drops of thin CA in the old holes
before inserting the new screw just to re-enforce the existing wood/threads
already cut. The c.a. I think would be best if it dried first.

  Any brains storms?

  Dale 

 

Dale Erwin--Piano Restorations
4721 Parker rd
Modesto, Ca. 95357
Shop 209-577-8397
Web site http://www.Erwinspiano.com <http://www.erwinspiano.com/>  
Restoration & Sales of
Steinway & Sons & other fine pianos.
" Soundboards by Design"





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