Pinblock Separation Repair

richard.ucci@att.net richard.ucci@att.net
Sun, 02 Nov 2003 00:41:43 +0000


Great photos Terry, thanks for your help.

Rick Ucci
>  
> Several folks requested pictures of a pinblock separation repair, so  
> here goes. Click on the links below for the pictures. Several show the  
> pipe clamps in place. After applying epoxy into the crack as deep as  
> you can get it, it seems to help to tighten each clamp and then go back  
> and tighten them all again. Tighten all clamps several times - you  
> will find that even though they were tight a few minutes ago, you can  
> often keep tightening them more and closing the gap more. Keep cleaning  
> up squeeze out as you go.
>  
> Important to remember to only clamp at backposts. If you try to clamp  
> on the spacer blocks between backpost you will only manage to bust up  
> the back assembly pretty good - DAMHIK (it was a long time ago - and on  
> my piano)!
>  
> In past jobs on larger pianos I was able to bolt, clamp and epoxy all  
> at the same time. On this console, I had space problems so I epoxied  
> and clamped - let cure for 48 hours - then drilled and through bolted.  
> You will see in two of the pictures that the nut for the center bolt  
> was right in the middle of several tuning pins - I couldn't get a  
> wrench on the nut with the tuning pins in place. So I had to remove  
> them to tighten nut. A pretty acorn nut would not fit on the center  
> bolt so I just used a plain nut.
>  
> You'll also note that I had to go in on a bit of an angle on the two  
> end bolt holes because of case clearance problems.
>  
> Other than that, all is fairly self-explanatory I think. Please ask  
> away if you have any questions. Piano tuned up real nice and I think it  
> has decades of service left in it.
>  
> Terry Farrell
> 
> Photos at:
> 
> https://www.moypiano.com/ptg/files/attachments/04/db/d1/21/ 
> attachment.jpe
> 
> https://www.moypiano.com/ptg/files/attachments/04/3e/e6/c2/ 
> attachment.jpe
> 
> https://www.moypiano.com/ptg/files/attachments/d9/42/80/f5/ 
> attachment.jpe
> 
> https://www.moypiano.com/ptg/files/attachments/42/bb/a1/18/ 
> attachment.jpe
> 
> https://www.moypiano.com/ptg/files/attachments/64/6b/32/73/ 
> attachment.jpe
> 
> https://www.moypiano.com/ptg/files/attachments/19/97/03/20/ 
> attachment.jpe
> 
> https://www.moypiano.com/ptg/files/attachments/43/86/a7/f0/ 
> attachment.jpe
> 
> https://www.moypiano.com/ptg/files/attachments/50/7e/80/48/ 
> attachment.jpe
> 
> https://www.moypiano.com/ptg/files/attachments/5f/f9/d4/79/ 
> attachment.jpe
> 
> 
> 
> Alternate:
> 
> http://tinyurl.com/t9j7
> 
> http://tinyurl.com/t9je
> 
> http://tinyurl.com/t9jm
> 
> http://tinyurl.com/t9jr
> 
> http://tinyurl.com/t9jw
> 
> http://tinyurl.com/t9jz
> 
> http://tinyurl.com/t9k1
> 
> http://tinyurl.com/t9k5
> 
> http://tinyurl.com/t9k8
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