The bobbin will stop rotating automatically ; when it is done winding, and the bobbin ; holder will return to its original position.- Page 246

APPENDIX 

————————————————————————————————————————————————————————————————————————————

244

0

The bobbin will stop rotating automatically 
when it is done winding, and the bobbin 
holder will return to its original position.

a

Remove the bobbin.

Note

●

When removing the bobbin, do not pull 
on the bobbin winder seat. Doing so could 
loosen or remove the bobbin winder seat, 
resulting in damage to the bobbin winder.

b

Pull the thread through the guide slit in the 
bobbin winder seat to cut the thread with 
the cutter.

CAUTION

■

If bobbin winding is stopped before it is 
finished:

The bobbin winder stops automatically if the 
thread does not feed, for example, if it becomes 
tangled on the spool pin. If this occurs, correctly 
thread the bobbin winder, and then wind the 
bobbin correctly.

●

Check that the 
bobbin thread has 
been wound 
correctly, 
otherwise the 
needle may break 
or the thread tension will be incorrect.

●

Be sure to clean the bobbin case each 
time that the bobbin is changed. Thread 
wax and dust easily collect around the 
hole in the tension-adjusting spring on 
the bobbin case, resulting in an 
incorrect thread tension. For details, 
refer to “Cleaning the bobbin case” on 
page 247.

●

Be sure to check the tension of the 
bobbin thread each time that the 
bobbin is changed.

●

Depending on the bobbin thread type, 
the tension of the bobbin thread may 
differ. Be sure to check the tension of 
the bobbin thread and adjust the 
tension if necessary.
For a metal bobbin, use both weights, 
large (L) and small (S).
For detailed instructions on how to 
adjust the bobbin tension, refer to 
page 112.

1

Weight (L) (Part Code: XC5974-151)

2

Weight (S) (Part Code: XC6631-051)