21
[ Fig. 24 ]
A. Adjusting the tension of the upper
Thread When the tension adjusting nuts ③ and ④, of
thread tension adjusting unit ① and sub-tension adjusting
unit ②, are turned clockwise the upper thread is
tightened. And loosens when turned the other way
around.
6) How to Adjust the Tension of the Upper Thread and the Lower Thread
[ Fig. 25 ]
B. Adjusting the tension of the lower
Thread the lower thread becomes tight when tension
adjusting screw ① is turned clockwise, as shown in the
picture. When the screw is turned the other way the lower
thread is loosened.
Strong
Weak
①
①
④
③
②
7) How to Wind the Lower Thread
A. Press and select in the operation box.
B. Insert the thread winder basis ① attached on the upper cap of the bobbin into the thread winder drive shaft ②.
C. Adhere the thread winder lever ③ closely to the bobbin, and operate the machine by pressing the pedal.
D. After separating the thread winder lever from the bobbin, cut off thread of the bobbin using the thread winder mes ④.
SELECT
[ Fig. 26 ]
④
②
Bobbin
①
③
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