-CD -28
B
A
4_5 FA21
4-5
A
B
B
C
B
A
A
BOBBIN WINDING
Removing the bobbin
1. Open hook cover (A) to front.
2. Grasp bobbin case latch (B) and withdraw
bobbin case from hook taking care not to
damage the thread keeper.
Inserting the bobbin case
1. After threading bobbin in case, open bobbin
case latch (A), grasping it in fingers as
shown.
Slip bobbin and case on stud of rotary hook
body, and press in securely. Release bob-
bin case latch. Press the bobbin case in to
be sure it is fully seated.
2. Close hook cover.
Inserting the bobbin
1. Hold the bobbin case in left hand. Hold the
bobbin in your right hand with thread on top
leading from left to right.
2. Insert bobbin in case and draw thread up
into slot in case.
3. Draw thread under tension spring (A) and
wind into guide coil (B). The bobbin should
turn clockwise in the case when the thread
is pulled.
Adjusting bobbin thread tension
1. Hold bobbin thread and jerk upward approx.
an inch. Thread should unspool further
approx. the same amount.
2. The screw on the tension spring is for ad-
justing bobbin tension. This adjustment is
very delicate. Please turn the screw only a
small amount. Only 1/8 of a turn maximum.
CAUTION: To prevent accidents.
Please watch out for the point of the rotary
hook when you replace the bobbin.
Increase
Decrease
The attached bobbin case is available only
for this machine. Thread may be caught in
thread guide coil if other types are used.
