Singer Centurion 121D - Page 41

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
SERVICE
INSTRUCTIONS
FOR
COMPOUND
FEED
SYSTEM
121C
CLASS
Servicing
instructions
for
1
21
D
Class
machines
also
apply
to
the
1 21 C
Class
with
the
exception
of
the
following
special
instructions.
39