Mechanical Music Digest  Gallery
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
MMD > Gallery > Pictures > transmission

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

Player Piano Transmission
Player Piano Transmission Repaired Via the 'Net
by John A. Tuttle (990701 MMD)

Hi All,  Below is a series of short letters which led to the successful
repair of an Aeolian Musette via the Internet.

A woman writes:

  I live on the Oregon coast and don't have access to a piano tuner/
repairman - my piano seems to be "stuck" in reverse.  Is this fairly
simple to repair? or? more info?

I answer:

  Fairly common problem in units that aren't maintained on a regular
basis.  Most likely, the pinion gear inside of the transmission has
become disengaged from the shifter arm.  I know that sounds like Greek,
so I've made up a simple picture to guide you.

tranny.gif (4 kb)

  Open the top of the instrument and locate the transmission, which is on
the right hand side of the spool box.  Move the Play/Reroll lever back
and forth and watch what happens inside of the transmission.  The long
arm that moves right and left is the shifter arm.  The small brass gear
in the middle of the transmission is the pinion gear.  On the back side
of the shifter arm is a small pin which must be positioned such that it
'rides' inside the 1/8" channel on the pinion gear.

  To position it correctly, gently pull the shifter arm towards you and
move it so that the pin on the backside of the shifter arm goes into
the groove on the pinion gear.  Then, to help prevent the problem from
occurring again, tighten the screw, (with the spring underneath it) that
holds the shifter arm to the transmission.  Do not tighten it more than
1/2 turn.

  In closing, this problem can happen if the Play/Reroll lever is
aggressively moved from Reroll to Play.

Her reply:

  Hey - thanks - got it fixed - works great - really missed it! :)

My closing reply:

  Super!  Glad to have been able to help.  Now you'll need some new
rolls to enjoy.  You can save up to 20% off the QRS list price.  See:


John A. Tuttle

5 July 1999

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 1995-2024 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

Please Support Publication of the MMD with your Generous Donation

Pay via PayPal

No PayPal account required

Translate This Page