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APPENDIX —————————————————————————————————————————————————————————
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192
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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.
■ 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 195.
● 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 85.
1 Weight (L) (Parts Code: XC5974-151)
2 Weight (S) (Parts Code: XC6631-051)
CAUTION
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Sapphire_chapt7.fm Page 192 Friday, November 18, 2005 12:10 PM