(1) Cleaning of the feed dog Remove the screw between the needle plate and the feed dog, remove the cloth and dust, and add a small amount of sewing machine oil.

(2) Cleaning of the shuttle bed The shuttle bed is the core of the sewing machine and the most prone to malfunction. Therefore, always remove dirt and add a small amount of sewing machine oil.

(3) Cleaning of other parts The surface of the sewing machine and the parts inside the panel should be cleaned frequently.