Mechanical Music Digest  Archives
You Are Not Logged In Login/Get New Account
Please Log In. Accounts are free!
Logged In users are granted additional features including a more current version of the Archives and a simplified process for submitting articles.
Home Archives Calendar Gallery Store Links Info

Spring Fundraising Drive In Progress. Please visit out home page to see this and other announcements:     Thank you. --Jody

MMD > Archives > February 2001 > 2001.02.14 > 12Prev  Next

Adjustment Screws on Pneumatics
By Bob Barlow

I am in the process of rebuilding my Schiller player piano.  According
to Art Reblitz's book, the action is a Standard action, my clue being
the "S" symbol on the pump pedals.

In restoring/recovering the pneumatics,  I do not understand the
purpose, usage and adjustment of very small flanged screws in the top
board (fingerboard) of each pneumatic.  Opposite the path of the screw
is a felt pad glued into a round hole in the lower pneumatic board.

Some of the pneumatic screws were barely into the fingerboard, while
others were almost totally screwed into it.  Obviously some sort of
adjusting screw.

I looked through the MMD Archives trying to find previous articles on
this subject, but found none.  If I missed it, please point me to the
article.  If not, can someone advise me as to the full purpose, why and
when to make adjustments of the screws?

Logic says it would have something to do with keeping the pneumatic
from closing too much, or making them all have the same closing depth.
Is this on the right track?  Would these have any part in adjusting the
valves?  Were these used to adjust the pneumatic as the action went
through normal wear from usage over the years?  Any help for an old

Just havin' fun and tryin' to do it right.

Bob Barlow
Bartlett, TN

(Message sent Wed 14 Feb 2001, 13:57:23 GMT, from time zone GMT-0500.)

Key Words in Subject:  Adjustment, Pneumatics, Screws

Home    Archives    Calendar    Gallery    Store    Links    Info   

Enter text below to search the MMD Website with Google

CONTACT FORM: Click HERE to write to the editor, or to post a message about Mechanical Musical Instruments to the MMD

Unless otherwise noted, all opinions are those of the individual authors and may not represent those of the editors. Compilation copyright 1995-2019 by Jody Kravitz.

Please read our Republication Policy before copying information from or creating links to this web site.

Click HERE to contact the webmaster regarding problems with the website.

Please support publication of the MMD by donating online

Pay via PayPal

No PayPal account required

Translate This Page

. .