Air hammers for Pin torque

[Barrie Heaton]

In article <002601c03bda$5aaa6680$bd3c070c@delsmachine>, Delwin D 
Fandrich <pianobuilders@olynet.com> writes
>
>----- Original Message -----
>From: "Diane Hofstetter" <dianepianotuner@hotmail.com>
>To: <pianotech@ptg.org>
>Sent: October 21, 2000 12:10 PM
>Subject: Re:Air hammers for Pin torque
>
>
>> Around the time I started stringing with an air hammer, I mentioned it at
>a
>> PTG meeting.  After the meeting, Laroy Edwards came over and told me that
>at
>> the Yamaha factory they had discovered they got better and more consistent
>> pin torque with an air hammer.
>> Diane
>>
>-----------------
>
>This has been our experience as well.
>
>Del
>
>

Could it be because there is no side impact to the pin,  as you get with 
the arching effect  with  a normal hammer - so the pin or punch is not 
hit square each time.

Barrie,
-- 
Barrie Heaton      PGP key on request           http://www.a440.co.uk/
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