Key Bushing Cauls

[Porritt, David]

I don’t know for certain when they changed but it might have happened when they switched to Kluge keys and the wider keyset but I’m not positive.  All the Steinways that we have purchased since 2000 certainly have the 0.131” front rail pins.  I suppose they are actually 3.33mm (0.1311023622047244094488188976378”) but I can’t measure that fine and the pins don’t tend to be that consistent!!

 

dave

 

 

David M. Porritt, RPT

dporritt at smu.edu

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Paul T Williams
Sent: Thursday, July 31, 2008 2:07 PM
To: Pianotech List
Subject: RE: Key Bushing Cauls

 


David, 

When did Steinway change from .146 to .131?  All our Steinways are over 18 years old. 

Paul 





"Porritt, David" <dporritt at mail.smu.edu> 
Sent by: pianotech-bounces at ptg.org 

07/31/2008 01:19 PM 

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RE: Key Bushing Cauls

 

		




You can’t live without cauls for 0.146” pins as they are so standard.  On new Steinways the front pins are 0.131” so if you do any Steinway work you’ll need those.  I’d recommend getting a set of 0.146” and buy the rest as needed.  All of mine are Spurlock cauls though I know there are other good ones out there but Bill will get a set to you on very short notice.  If you pick up an action to bush the keys and you don’t have the proper cauls, you can order them as you are removing the old bushings and have them within a couple of days. 
  
dp 
  
David M. Porritt, RPT 
dporritt at smu.edu 
  
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Matthew Todd
Sent: Thursday, July 31, 2008 12:01 PM
To: pianotech at ptg.org
Subject: Key Bushing Cauls 
  
I would like to order some cauls soon, but I had a question. 
  
I feel I don't need to order every single size/shape of cauls available, and there are many.  So, what would be a good size to begin with, if I were to order only one set? 
  
  
Thanks!
Matthew 

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