Cleaning the race

1. Press  (Needle position button) to raise the needle.
   
   
    
2. Turn the main power to OFF, and then unplug the machine.
   
   
    
3. Remove the needle and presser foot.
   
   
    
4. Remove the flat bed attachment or the embroidery unit if either is attached.
   
   
    
5. Insert the multi-purpose screwdriver into the hole, and tilt the multi-purpose screwdriver to the left and then to the back, as shown in the illustration.
   
   
    
6. Slide out the needle plate with your right hand to remove it.
   
   
    
7. Grasp the bobbin case, and then gently lift out.
   
   
    
8. 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.

   (1) Cleaning brush (2) Race (3) Bobbin thread sensor

   IMPORTANT

   • Do not apply oil to the bobbin case.
   • If lint or dust collects on the bobbin thread sensor, the sensor may not operate correctly.

    

9. Insert the bobbin case so that the  mark on the bobbin case aligns with the  mark on the machine.
   
   * Align the  and  marks.
   
   
   (1)  mark
   (2)  mark
   (3) Bobbin case
   * Make sure that the indicated points are aligned before installing the bobbin case.
   • Never use a bobbin case that is scratched or has a burr on it. Otherwise the upper thread may become tangled, and the needle may break and cause injury. For a new bobbin case, contact your nearest Brother authorized service center.
   • Be sure that the bobbin case is correctly installed, otherwise the needle may break and cause injury.

   
    

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

    (1) Tabs (2) Notches

    
     
11. Press down on the right side of the needle plate to secure it.
    
    
     

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  (Thread cutter button) is pressed or the automatic thread cutting function is used. Clean the cutter when the thread is not easily cut.
 

1. Follow steps 1 through 7 in the above section "Cleaning the race" to remove the needle plate and the bobbin case.
   
    
2. Use the cleaning brush or a vacuum cleaner to remove any lint and dust from the cutter in the bobbin case area.

   (1) Cutter

   • Do not touch the cutter, otherwise injuries may result.

   
    

3. Insert the bobbin case and attach the needle plate following steps 9 through 11 in the above section "Cleaning the race".