Ok, This is weird

[Piannaman@aol.com]

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Greg,
 
I had this happen on a brand new BB Mason and Hamlin not so long ago.   I 
raised the glide bolts, and it slipped right out.  They'd been cranked  WAY down, 
though I couldn't figure out why.  The keyframe was  up about 1-16 inch 
higher than it should have been.  
 
 
I hope this helps,
 
Dave Stahl
 
In a message dated 9/16/2005 4:14:50 PM Pacific Standard Time,  
gnewell@ameritech.net writes:

Listees,
I've never encountered  this before and now I've seen it twice in 
the same week. 2 pianos both  from very different manufacturers and from 
different eras coming in to my  neck of the woods from 2 entirely different 
climates and regions both have  the same problem. I went to each of these 
customers homes and for one  reason or another found it necessary to pull 
the action. (Sorry, both are  grands). I found that the pin blocks were 
touching the center 2 octave  action screws and it was impossible to pull 
the action as we normally due.  I was able to pull off the stretcher on one 
of these and found to my  surprise that the pin block was intact. No 
delaminations at all which is  what I expected to find. Instead I found 
after fishing out one of my most  important tools (string) that the plate 
was warped downward in the center  by roughly 3/8" or 10 mm pushing the pin 
block into the action.
If any of you have ever run in to this problem  especially in a 
rebuilding capacity, what if anything have you done about  it? I know of no 
way to un warp cast iron so I suppose that's out of the  question. Is the 
piano scrap now? Is it possible that the warp happened  recently and did not 
exist at the time of manufacture?
FWIW, one of the pianos is a 70yr old (or there abouts)  Henry F. 
Miller grand and the other is a 15-20 yr. old Schumann (Samick  product). 
The first actually has some potential to be a fine instrument if  it weren't 
for the warped plate. The second never was and never will be  anything but a 


 

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