15
4) How to place the bobbin case
Turn the pulley until the needle bar comes to its highest
position. Bring the bobbin case towards the center stud in
the bottom of the bobbin case. Press the bobbin case until it
makes a clicking sound in the frame. Follow the instructions
carefully to protect the needle in the bobbin frame.
[Figure 11]
5) How to thread the bobbin case
Insert the bobbin case in the bobbin frame. Firmly fix the
bobbin in the frame, push the thread through the hole and
pull it into the lower part of the tension spring and the hole.
[Figure 12]
6) Lower thread winding and adjustment
(1) Winding the lower thread
A. The thread should come out through hole
①
from the
back of the tension regulating dish
②
towards the
front.
B. The thread should be taken to the bobbin
③
and
wound clockwise 5 or 6 times from the bottom.
C. After pushing lever
④
and letting pulley
⑤
touch
the V-belt, run the machine.
D. If the bobbin winds all the lower thread, pulley
⑤
is
automatically separated from the belt.
(2) Lower thread adjustment
A. When the lower thread is wound irregularly unscrew
⑥
, move it left to right, and tightly screw
⑥
again.
B. The lower thread's winding amount can be adjusted. if
you turn the regulating screw
⑦
clockwise it increases
and if you turn it counterclockwise it decreases.
C. For the lower thread's tension adjustment that winds
the bobbin, if you turn screw
⑧
clockwise it becomes
stronger and if you turn it counterclockwise it
becomes weaker.
[Figure 13]
②
③
④
⑤
⑥
⑦
⑧
①
