For an easy-to-understand description of how to change the roll in
a Link endless-roll piano, we invite you to visit this web page at
Mechanical Music Press:

  http://www.mechanicalmusicpress.com/history/how_to/linkroll.htm 

Beautifully illustrated with 28 sequential photos, the article
takes the mystery out of this seemingly-difficult and mysterious
task.  Credits go to Link aficionado Rusty King for taking the time
to write the detailed description and take the excellent pictures,
Glenn Grabinsky and Dana Johnson for their additional input, layout
and graphics by Terry Hathaway, and editing by yours truly.

Art Reblitz
http://www.reblitzrestorations.com/