hosted on condor3913
 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

End-of-Summer Fundraising Drive In Progress. Please visit our home page to see this and other announcements: https://www.mmdigest.com     Thank you. --Jody

MMD > Archives > February 2006 > 2006.02.21 > 06Prev  Next


Broken Strings & Action Springs & Blue Underfelt
By Jeff Davis

I just finished replacing all the hammer springs in an Aeolian with
blue felt.  I've had problems with weak springs in the past and so when
I saw about a dozen of them already broken, I went ahead and replaced
them all, rather than use repair springs.  Aeolian springs from this
era have been so bad, even from the start, that one could not bend them
to adjust hammer return speed.

As for whether or not the felt had anything to do with breaking
springs, I think not.  These were breaking outside of the coil spring,
at a point not in contact with felt.  There was no discoloring of the
felt that might indicate a reaction between felt and spring.  Also,
I learned early in my career that Aeolians had easily breaking springs.

Here's a trick I learned from my mentor years ago.  Use a straight rod
(a coat hanger will do) and run it through all the coils after you've
inserted them in their holes in the rail.  It will prevent the coils
from rolling over 90 degrees as you snug up the spring wires into their
slots on the back of the rail.

It's not a major job.  I was done in under three hours, start to finish.
I rarely have to do this job but it's almost always been Aeolians from
the 1970's.

Jeff Davis in Seattle


(Message sent Tue 21 Feb 2006, 23:15:20 GMT, from time zone GMT-0800.)

Key Words in Subject:  Action, Blue, Broken, Springs, Strings, Underfelt

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 1995-2022 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