Cleaning the race

Stitching performance will suffer if lint and dust collects in the bobbin case, therefore, it should be cleaned regularly.

1. Press (Threading position button) to raise the needle.

2. Remove the needle. (Replacing the needle)

3. Turn off the machine.

4. Unplug the power cord from the power supply jack.

5. Remove the needle plate cover.

   

6. Remove the bobbin case, and 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. Bobbin case
   2. Cleaning brush
   3. Race
   4. Bobbin thread sensor

7. Insert the bobbin case so that the ▲ mark on the bobbin case aligns with the ● mark on the machine.

   
   CAUTION

   • Never use a bobbin case that is scratched or has a burr on it. Otherwise the upper thread may become tangled, 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.

8. Attach the needle plate cover.

   

9. Follow step 6 of Replacing the needle for attaching the needle.