Lower (bobbin) thread, How to wind bobbin, Loosen stop motion knob by turning it – Brother 681B-UG User Manual
Page 9: Toward you, Place an empty bobbin on the bobbin, Winder pin, Place thread spool on the spool pin and take, Thread through bobbin winder tension disc
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Lower (Bobbin) Thread
HOW TO WIND BOBBIN
1. Loosen stop motion knob by turning it
toward you.
2. Place an empty bobbin on the bobbin
winder pin.
4. Wind the thread a few times around the
bobbin clockwise and push the bobbin
toward bobbin presser. Start the machine
gently.
5. Bobbin stops winding when full.
6. Push the bobbin to the left and remove it.
Tighten stop motion knob securely.
3. Place thread spool on the spool pin and take
thread through bobbin winder tension disc.
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