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Adjustment (Main Unit)
Bobbin winder (uneven bobbin winding and bobbin winding amounts) adjustment
1. Move the bobbin winder tension assy. up and down to adjust uneven bobbin winding.
2. Fully tighten the screw, pan (S/P washer) M3X6.
3. Turn the bobbin presser left and right, and adjust the winding quantity.
*Key point
• The target for the bobbin winding quantity is filling 80 - 90% of the diameter.
4. Fully tighten the screw.
Screw, pan (S/P washer) M3X6
torque 0.39 - 0.78 N-m
Screw
torque 0.39 - 0.78 N-m
80-90“
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