Singer Centurion 121D - ARM SHAFT (Disassembly)

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
OISASSEMBL Y SEQUENCE
TENSION RELEASE MECHANISM
1. Remove
lifting
link
screw
and link.
2.
Remove
presser
bar
pressure lever ad-
justing
screw
tension
clip
and screw.
3. Remove tension releasing lever
mount-
ing screw, lever and spring.
4.
Remove
hand
lifting
lever
mounting
screw
and lever.
5.
Remove tension releasing pin.
ARM
SHAFT
1. Loosen set
screws
(2
ea.) in each of
the
components
named in the
illustration
below.
The
handwheel
should
then be removed,
exposing
the right end of the shaft.
2.
With a
soft-faced
mallet,
lightly
tap arm
shaft
from right to left until
front
arm
shaft
bearing
is free of casting. Pull arm
shaft
from machine, right to left.
Hanci
Wheel
Timing Belt Pulley
& Bearing Assembly
~"\,~~"~
~J'
~
',
'\~
l
-~>-/
""
Bobbin Winder Drive
Intermediate
Bearing
Counterweight
22