[pianotech] upside down CA job report

Dean May deanmay at pianorebuilders.com
Tue Apr 7 06:20:37 PDT 2009



 

A tip of the hat to John Dewey for this. You should make a brace to support
the lyre. Just use 1/2 inch thin wall conduit, 1/2 inch threaded rod, a nut,
and rubber tips glued on each end. This brace set up makes for a very strong
support. That lyre ain't going anywhere.  

 

Don't forget to take off the hinges attached to the rim before you roll it
over. Otherwise the full weight of the piano will be on the barrels and
attempting to rip the hinges out of the rim. 

 

A couple of books work as well as 2x4s. You just need to be able to get your
fingers out after lowering and back under to lift again. And a good thick
layer of newspapers work just as well as the tarp. Of course I only use 2 oz
of CA for this treatment, so not that much is going to run out if any. 

 

I would add to let it sit for a good 30-60 minutes to let it all soak in
before setting back upright. Then mist the pin hole field with accelerator
before setting back upright, just to make sure there aren't any pools of
liquid CA left waiting to run out where you don't want it. 

 

Dean

Dean May             cell 812.239.3359 

PianoRebuilders.com   812.235.5272 

Terre Haute IN  47802

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of James Johnson
Sent: Monday, April 06, 2009 11:12 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] upside down CA job report

 

I removed the action and the music rack, then the lid.  With the lid gone we
could roll the piano over on the straight side (after checking the lyre for
stability and removing the left front leg) using the lyre as the pivot
point.  We left the lyre and two legs on the piano.  We then rolled it all
the way over letting it rest on some padded 2X4s on top of a plastic tarp
(just in case some of the CA glue escaped).  The customer and one of his
drinking buddies helped me flip it over.  The difficult part was laying down
on my side and working in the action cavity.  The CA fumes were very
concentrated in that small space and even though I had a fan blowing
directly on the work, it was still very strong.  Next time I will use a more
powerful respirator and some sealed goggles (the type they make for chopping
onions will probably work).  Also perhaps some sort of vacuum system to suck
the fumes outdoors.

----- Original Message ----- 

From: wimblees at aol.com 

To: pianotech at ptg.org 

Sent: Monday, April 06, 2009 7:08 PM

Subject: Re: [pianotech] upside down CA job report

 

James

Thanks for the update. It is always good to hear the results of a rather
unorthodox repair. My big questions, and/or concern, is how did you flip the
piano over and back? You probably told us about that 6 months ago, but I
forgot. 

Willem (Wim) Blees, RPT
Piano Tuner/Technician
Mililani, Oahu, HI
808-349-2943
Author of: 
The Business of Piano Tuning
available from Potter Press
www.pianotuning.com



-----Original Message-----
From: James Johnson <jhjpiano at sbcglobal.net>
To: toddpianoworks at att.net; pianotech at ptg.org
Sent: Mon, 6 Apr 2009 2:29 pm
Subject: [pianotech] upside down CA job report

About 6 months ago I shared my experience of treating a grand pin block from
the bottom with the piano upside down.  I had previously treated it from the
top, but because of the plate bushings, I didn't get good enough penetration
to make much of a difference.

Anyway, today I returned to do the 6 month tuning and I'm happy to report
that the piano is holding well and all the pins feel quite good.  If I
didn't know that the pin block had been treated, I probably wouldn't have
noticed that the pins felt different than any other older piano.  I would
definately consider using this technique again if circumstances warranted
it.  The piano, a Harrington grand, was not worth doing any major
rebuilding, nor could the customer have afforded it anyway.  This process
saved the piano for what I hope will be a number of years, and for this
customer's use, it worked out well.

 


  _____  


The Average US Credit Score is 692. See
<http://pr.atwola.com/promoclk/100126575x1221621488x1201450096/aol?redir=htt
p:%2F%2Fwww.freecreditreport.com%2Fpm%2Fdefault.aspx%3Fsc%3D668072%26hmpgID%
3D62%26bcd%3DAprilAvgfooterNO62>  Yours in Just 2 Easy Steps! 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090407/fbdda900/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/jpeg
Size: 13469 bytes
Desc: not available
URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090407/fbdda900/attachment-0001.jpe>


More information about the pianotech mailing list

This PTG archive page provided courtesy of Moy Piano Service, LLC