Winding The Lower Thread - Brother T-8421B Instructions Manual

4-3. Winding the lower thread

Do not touch any of the moving parts or press any objects against the machine while winding the lower thread, as this
may result in personal injury or damage to the machine.
2897M
Less thread
2123M
CAUTION
More thread
2124M
T-8421B, 8422B, 8452B, 8722B, 8752B
4. PREPARATION BEFORE SEWING
1. Turn on the power switch.
2. Place the bobbin (1) onto the bobbin winder shaft (2).
3. Wind the thread several times around the bobbin (1) in the
direction indicated by the arrow.
* Check that the thread is not loose anywhere along the
thread path.
4. Push the bobbin presser arm (3) toward the bobbin (1).
5. Raise the presser foot with the lifting lever.
6. Depress the treadle. Lower thread winding will then start.
7. Once winding of the lower thread is completed, the bobbin
presser arm (3) will return automatically.
8. After the thread has been wound on, remove the bobbin
and cut the thread with the knife (4).
* Loosen the screw (5) and move the bobbin presser (6) to
adjust the amount of thread wound onto the bobbin.
NOTE:
The amount of thread wound onto the bobbin should be
a maximum of 80 % of the bobbin capacity.
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