Singer Centurion 121D - Page 20

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
TO
ADJUST
BOBBIN WINDER
1.
Loosen
set
screw
at
top
end
of
engaging
lever. With
screw
driver
in
slot
hold
shaft
sta-
tionary
and
move lever as
required
to
obtain
desired
amount
of
thread
on
bobbin.
Move to
right
for
more
thread
and
left for less.
Retighten
set
screw.
2.
Loosen
set
screw
in
collar
of
thread
guide. Move
guide
in or
out
to
obtain
even
wind
on
bobbin.
Retighten
set
screw.
3.
Adjust
tension
as
required:
in
(clockwise)
for more and
out
(counterclockwise)
for
less.
4.
Use
fine
adjustment
lever for
filling
bobbin
to an
exact
amount.
Thread
Guide
,
l
Fine
Adjustment
Lever
To
thread
bobbin
winder, lead
th,ead
frorn threr:id
stand
throuqll
tt1read retainer,
wrap
a
complete
turn
around
tension
stud
of
tension
mcc:h,rnism,
thrcnd
guide, to
bobbin.
Wrap
bobbin
clockwise.
18