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3-5. Installing the bobbin winder device
A
❷
D
B
C
❹
• It is the standard that the center of the bobbin is as high as the center of thread tension disk ❻ .
• Adjust the position of thread tension disk ❻ to the direction of E when the winding amount of the bobbin
thread on the lower part of the bobbin is excessive and to the direction F when the winding amount of
the bobbin thread on the upper part of the bobbin is excessive.
After the adjustment, tighten nut ❺ .
7) To adjust the tension of the bobbin winder, turn the thread tension nut ❼ .
1. When winding the bobbin thread, start the winding in the state that the thread between the
bobbin and thread tension disk ❻ is tense.
2. When winding the bobbin thread in the state that sewing is not performed, remove the
needle thread from the thread path of thread take-up and remove the bobbin from the hook.
3. There is the possibility that the thread pulled out from the thread stand is loosened due to
the influence (direction) of the wind and may be entangled in the handwheel. Be careful of
the direction of the wind.
❽
❶
❸
❻
❼
E
❻
❺
F
❻
1) Insert the bobbin deep into the bobbin winder
spindle ❶ until it will go no further.
2) Pass the bobbin thread pulled out from the spool
rested on the right side of the thread stand following
the order as shown in the figure on the left. Then,
wind clockwise the end of the bobbin thread on the
bobbin several times.
3) Press the bobbin winder trip latch ❷ in the direc-
tion of A and start the sewing machine. The bobbin
rotates in the direction of B and the bobbin thread
is wound up. The bobbin winder spindle ❶ auto-
matically as soon as the winding is finished.
4) Remove the bobbin and cut the bobbin thread
with the thread cut retainer ❸ .
5) When adjusting the winding amount of the bob-
bin thread, loosen setscrew ❹ and move bobbin
winding lever ❷ to the direction of C or D. Then
tighten setscrew ❹ .
To the direction of C : Decrease
To the direction of D : Increase
6) When the bobbin is not evenly wound with thread,
loosen nut ❺ and adjust the height of bobbin
winder tension disk ❽ .
– 9 –
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