Grand Regulation

[Christopher D. Purdy]

>List,
>
>Here's a fairly basic question from a somewhat newbie: I've noticed on a few
>grands (new and used, various makes) that a few hammers do a lot of
>double-striking on a soft blow.  Seems this is a situation of perhaps too
>strong a repetition spring, or perhaps improper checking, but I've not read a
>proper diagnosis or regulation sequence in any of the literature.  Please
>help further my knowledge of "Regulation 101," and thanks in advance.
>
>Dan Dannenfelser
>Sacramento, CA

Hi Dan,

What you are experiencing can be caused by a few things including spring
tension and backcheck but it often boils down to insuficiant aftertouch.
Check the hammer height and be sure there is enough key movement after
escapement.

chris

-Christopher D. Purdy R.P.T.   School of Music  Ohio University  Athens OH

-purdy@oak.cats.ohiou.edu   (740) 593-1656    fax# (740) 593-1429