[pianotech] Tuning pin torque???

[Williams, James]

Hi Denise,
Thanks for your response. The pin torque readings are anywhere from 15-45 inch pounds. Not tight at all. I am familiar with your experience on the Hardman, but this is a different type of spongy; loose.
James


From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Denise Rachel
Sent: Wednesday, February 24, 2010 8:45 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Tuning pin torque???

Hi

I have no answers for you.  but . . . . yesterday I tuned a Chinese Hardman grand.  The pins were tight, but so spongy feeling that I felt like I was bungie-tuning.  Awful!

Denise


On Feb 24, 2010, at 9:15 AM, Williams, James wrote:


Dear members:

I have recently purchased several new pianos and discovered during the initial tunings what I believe to be minimal tuning pin torque. The pins feel "spongy" and difficult to set. Is there an industry standard for pin torque, and if so, what should that torque value be in inch pounds? Any data on this subject would be greatly appreciated.

Sincerely,

James Williams, RPT
Dallas Chapter


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