If the surface of the LCD is dirty, lightly wipe it with a soft dry cloth.
When wiping dirt off the machine, firmly wring a soft cloth soaked in (lukewarm) water.
After cleaning the machine, dry it with a soft, dry cloth.
Press (Needle position button) to raise the needle.
Turn the main power to OFF, and then unplug the machine.
Remove the needle and the presser foot. (Changing the Needle, Replacing the Presser Foot)
Remove the flat bed attachment or the embroidery unit if either is attached.
Slide the needle plate lever toward you.
Slide out the needle plate with your right hand to remove it.
Grasp the bobbin case, and then gently lift out.
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.
Insert the bobbin case so that the mark on the bobbin case aligns with the
mark on the machine.
Make sure that the indicated points are aligned before installing the bobbin case.
Insert the tabs on the needle plate into the notches in the machine.
Press down on the right side of the needle plate to secure it.
Thread wax and dust easily collect around the notch in the tension spring on the bobbin case, resulting in an incorrect thread tension. Therefore, the bobbin case should be cleaned as necessary should tension problems arise.
When cleaning the bobbin case, use card stock or another type of paper of similar thickness and sturdiness in order to prevent pieces of paper tearing off and getting lodged in the bobbin case.
Follow steps 1 through 7 of Cleaning the Race to remove the bobbin case.
Using a piece of paper of adequate thickness and sturdiness, slide the paper between the tension plate base and the tension spring and also slide the paper behind the notch of the spring to remove any dirt or dust.
Use the cleaning brush to remove any lint and dust from inside the bobbin case.
Replace the bobbin case and needle plate.
If dust or lint accumulate on the cutter, it will be difficult to cut the thread when (Thread cutter button) is pressed or the automatic thread cutting function is used. Clean the cutter when the thread is not easily cut.
Follow steps 1 through 7 of Cleaning the Race to remove the needle plate and bobbin case.
Use the cleaning brush or a vacuum cleaner to remove any lint and dust from the cutter in the bobbin case area.
Attach the needle plate.