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• Adjusting thread tension
Upper thread is tight
Wrong
side
Right
side
Upper thread is loose
Upper thread is loose
Upper thread is tight
Adjustment method
for upper thread tension
Upper thread is tight
Upper thread is loose
Lower the upper
thread tension.
Increase the upper
thread tension.
Note: If the tension does not change even when
you adjust the upper thread tension, thread
the upper thread and lower thread again.
Wrong
side
Wrong
side
Wrong
side
Right
side
Right
side
Right
side
Sewing
Straight stitch
Zigzag sewing