Case Area; Use the cleaning brush or a vacuum cleaner ; to remove any lint and dust from the race - Page 341

CARE AND MAINTENANCE

Ap
pe
ndi
x

327

8

g

Use the cleaning brush or a vacuum cleaner 
to remove any lint and dust from the race 
and bobbin thread sensor and the 
surrounding area.

a

Cleaning brush

b

Race

c

Bobbin thread sensor

h

Insert the bobbin case so that the projection 
on the bobbin case aligns with the spring.

a

Projection

b

Spring

i

Insert the tabs on the needle plate cover 
into the needle plate, and then slide the 
cover back on.

Cleaning the Cutter in the Bobbin 
Case Area

The cutter below the needle plate should be 
cleaned. If dust or lint accumulate on the cutter, it 
will be difficult to cut the thread when the “Thread 
Cutter” button is pressed or the automatic thread 
cutting function is used. Clean the cutter when the 
thread is not easily cut.

a

Follow steps 

a

 through 

e

 in “Cleaning the 

Race” to remove the needle plate cover.

b

Use the screwdriver included with the 
machine to unscrew and remove the needle 
plate.

Note

• Do not apply oil to the bobbin case.

• If lint or dust collects on the bobbin thread 

sensor, the sensor may not operate cor-
rectly.

 CAUTION

• Be sure that the bobbin case is correctly 

installed. Otherwise, the needle may break.

Note

• 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: XC3153-251 (green 
marking on the screw), XC8167-451 (no 
color on the screw)), contact your nearest 
authorized service center.

• If the needle plate has been removed it is 

especially important to reinstall the needle 
plate and tighten the screws prior to 
installing the bobbin case.