[pianotech] Hammer Line Issue

[David Lawson Pianos]

Hi Tom, 

I'm not a tuner. I work in a piano shop and the owner goes tuning on the days I'm in the shop. I have been taught some basic maintenance, including refelting, key leveling etc. and taking up lost motion, on 2nd hand pianos we get in the shop. 
What intrigued me about Todd's problem, and this may even have been what Todd was asking, is how does a piano get into that condition? Is there some other issue that would cause the problem? On pianos I've taken up lost motion in, it seems to be a uniform amount for each section.

Regards,
Alastair McLean
David Lawson's Pianos
Wangaratta
Australia
  ----- Original Message ----- 
  From: Tom Driscoll 
  To: pianotech at ptg.org 
  Sent: Thursday, May 07, 2009 2:11 PM
  Subject: Re: [pianotech] Hammer Line Issue


  In the time it took to point out the problem to the client you could have adjusted the capstans . Didn't we go over this last month ?  Capstans too low = lost motion. Capstans too high = hammer shanks off the rail. How is blow? Letoff?.
  key dip ? A 23 year old piano with capstans all over the place is unlikely to have every other adjustment correct. 
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