Loose Pin Therapy

[Roger Jolly]

Hi Mark,
              You may find the plug idea usefull on the odd older grand in
the bass section, I have found more than a few with seperated blocks in
this area.  Two reasons I think. #1 the lack of material in the block, lets
face it,  it's pretty skinny in this area.  #2 The higher tension of the
bass strings increases the stress.
With old junkers, one has to do what one can, since the customers dictate
the budget.
  As for humidity, our homes are at 21C or close year round, the incredible
dryness in winter 25-30% RH in a home is common, in summer 70% is common.
In general the humidity slowly slides from one extreme to the other.
Institutions on the other hand is a whole nother story.
Hope to meet you in KC
Regards Roger




At 08:14 AM 24/02/99 +1100, you wrote:
>Good to hear from you Roger,
>
>Regarding the climate here in Australia, I live in Canberra which is a
>little (about 120 miles) inland on the East Coast. Canberra's climate is as
>I have described, but this is not typical for the coastal regions, which go
>through almost all the various types you have in North America without
>getting quite as cold as you do! So it is equally difficult to generalise
>about what the climate will do without being specific in region.
>
>BTW thanks for the pointers on upright pin blocks. I have been aware of the
>plugging method for a little while but have not found a piano worth the
>effort yet. I usually find that there are so many other problems as well
>that to repair everything blows any viability right out of the water. 
>
>Cheers
>Mark Bolsius
>Canberra -Australia
> 
>----------
>From: Roger Jolly <baldyam@sk.sympatico.ca>
>To: pianotech@ptg.org
>Subject: Re: Loose Pin Therapy
>Date: Tue, 23 Feb 1999 5:47 PM
>
>
>Hi Mark,
>             
>Funny about the differences in the climate from Northern Canada and
>Australia, However our humidity conditions are similar, 40 below Zero
>moisture is hard to find In winter. At the University ( steam heated ) 10%
>would be high. In Summer 40 above with 80% RH.
>Regards Roger.
>
>
>
>
>
>
>At 08:11 AM 23/02/99 +1100, you wrote:
>
>>Pinblock problems here are usually terminal.
>>Can I pose a supplementary question to the list?
>>When the loose pins form a relatively straight line, wouldn't that indicate
>>a grain weakness rendering the pinblock unsalvageable? "Therapy" in this
>>situation would be difficult to guarantee. Oversize pins run the extreme
>>risk of actually creating a crack that wasn't quite there yet, I'm afraid I
>>don't hold (sorry, couldn't resist it) with products like Pin-Tite, and
>>shimming holes (especially when there are quite few of them, doesn't appeal
>>much either. A new plank would be the order of the day (not that you'd
>>justify it on PSO or rock-crusher type upright).
>>
>
>Roger Jolly
>Baldwin Yamaha Piano Centre
>Saskatoon and Regina
>Saskatchewan, Canada.
>306-665-0213
>Fax 652-0505
> 
Roger Jolly
Baldwin Yamaha Piano Centre
Saskatoon and Regina
Saskatchewan, Canada.
306-665-0213
Fax 652-0505