Brother NX-250 Operation Manual page 102

5 Remove the bobbin case.
Grasp the bobbin case, and then pull it out.
1
1 Bobbin case
6 Use the cleaning brush or a vacuum cleaner to
remove any lint and dust from the race and its
surrounding area.
1 Cleaning brush
2 Race
• Do not apply oil to the bobbin case.
7 Insert the bobbin case so that the projection
on the bobbin case aligns with the spring.
b
1
1 Projection
2 Spring
1 Bobbin case
a
b
a
2
1
8 Install the needle plate cover.
The needle plate cover is installed differently
depending on the model.
■ If there is a screw in the needle plate cover
1 Insert the tabs on the needle plate cover into
the needle plate, and then slide the cover back
on.
1 Needle plate cover
Use the disc-shaped screwdriver to tighten the
2
screw in the needle plate cover.
■ If there is no screw in the needle plate cover
Insert the tabs on the needle plate cover into
1
the needle plate, and then slide the cover back
on.
1 Needle plate cover
Install the flat bed attachment in its original
9
position.
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: XC3153-151), contact
your nearest authorized service center.
●
Be sure that the bobbin case is correctly
installed, otherwise the needle may break.
Care and Maintenance
a
a
101
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