[pianotech] reverse solution

[John Ross]

As the moisture leaves the keys, the wood fibres draw together, making the hole tight on the pin.
A person tends to think that as the wood dries 'shrinks' the hole gets bigger, as seems to happen with tuning pins in the winter/dry time.
I think I am 'thinking' correctly, if not, I am sure I will be corrected.
I have been wrong before, and will be again.
John Ross
Windsor, Nova Scotia.
On 03-09-2012, at 5:25 PM, tnrwim at aol.com wrote:

> Tuned a 40 year old Kimball console on Tuesday last week, 30 cents low.  All the keys were working, except for a few slightly sluggish jacks in the upper register. But after a treating them with Protek, they worked fine. The piano has a DC, but it wasn't plugged in, which I suspected was causing the few jacks to be tight. So I plugged it in, and told the customer to leave it on 24/7, as are all DC in Hawaii, explaining the heat will keep the action from freezing up,
> Got a call on Friday saying the keys are sticking. Went back that evening, and sure enough, about a dozen jacks, hammer butts,and wippen centers were very tight.  I told the customer that it wasn't supposed to work that way, so I unplugged the DC, and told the customer to call me if the keys were still sticking in a couple of days. This morning he called and said all the keys are working. Go figure.
>  
> Any one want to speculate why?
>  
> Wim Blees, RPT
> Hawaii
>  

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