Sewing performance will suffer if dust collects in the bobbin case.
Therefore, it should be cleaned periodically.

1. Turn off the machine and unplug it.

   

    

2. Raise the needle and the presser foot.

   

     Mark on the handwheel

    

3. Loosen the presser foot screw and the needle clamp screw to remove the presser foot holder and the needle.

   

    

4. Using the oval screwdriver, remove the two screws. Lift up the needle plate as shown in the illustration, and then slide the needle plate to the left to remove it.

   

     Use the oval screwdriver

    

5. Grasp the bobbin case, and then lift it out to the left.

   

    

6. Use the cleaning brush or a vacuum cleaner to remove any dust from the race and its surrounding area.

   

     Cleaning brush        Race

   Do not apply oil to the bobbin case.

    

    

    

7. Insert the bobbin case so that the    mark on the bobbin case aligns with the    mark on machine as shown below.

   

       mark          mark

   Align the    and    marks.

    

    

    

   

     Bobbin case

   Make sure that the indicated points are aligned before installing the bobbin case.

    

    

    

8. Install the needle plate, and then tighten the screws.

   

     Screws