Regulating Woes

Ed Guerra edguerra@mail.utexas.edu
Sat, 17 Jul 1999 10:49:18 -0500


Two things come to mind.  The butt leather may be to slick or the
regulating button rail may need to be realigned.  


At 11:05 PM 7/16/99 -0500, you wrote:
>Hi List,
>
>I am having some difficulty regulating a 1919 Doherty 56" upright. I have
>done considerable work on this piano including soundboard repair,
>restringing including new bass strings, new hammers, etc. I have set sample
>hammer blow at 1 3/4", letoff at 1/8" and hammer checking at 5/8". I am
>getting insufficient escapement with those dimensions. I started with 7/16"
>(11 mm) key dip and that isn't sufficient. I get only about 1/32"
>escapement. I tried setting the blow at 1 5/8" but there was no appreciable
>improvement. Increasing the dip to 12 mm will give me about 1/16"
>escapement, but that dip feels too deep for my liking. Increasing letoff to
>3/16 seems to me to be the only solution but I feel that this is too great a
>distance.
>
>Does anyone have any suggestions?
>
>Thanks in advance
>
>Terry Beckingham
>Associate Member 
>The Pas, Manitoba. 
>Canada
>
>
Ed Guerra
edguerra@mail.utexas.edu
Austin, TX


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