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Bad Sewing
04
I
H
R
[Fig. 1]
[Fig. 2]
[Fig. 3]
[Fig. 4]
Adjusting the Tension of the Lower Thread
Push the bobbin case removal lever
disassemble the bobbin case.
When removing or placing back the bobbin case, make sure that it
doesn t negatively affect the lever .
Turn the lower thread tension adjusting screw
the lower thread tension gets stronger. When it is turned counter-
clockwise, the lower thread tension gets weaker.
Normally, about 30~40mm long thread
bobbin case when the bobbin case is inserted. Make sure the
thread doesn t enter into the hook.
in the arrow direction and
clockwise, and
is projected from the
Maintenance Book
37
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