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eRemove the bobbin case.
Grasp the bobbin case, and then pull it out.
aBobbin case
fUse the cleaning brush or a vacuum cleaner to remove any dust from the race and its surrounding area.
aCleaning brush
bRace
Note
●Do not put oil on the race.
gInsert the bobbin case so that the S mark on the bobbin case aligns with the z mark on the machine.
4
• Align the S and z marks.
aS mark
bz mark
cBobbin case
•Make sure that the indicated points are aligned before installing the bobbin case.
CAUTION
●Never use a bobbin case that is scratched, otherwise the upper thread may become tangled, the needle may break or sewing performance may suffer. For a new bobbin case (part code:
●Make sure that you fit the bobbin case properly, otherwise the needle may break.
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