(1) Cleaning of the cloth feed dog: remove the screw between the needle plate and the cloth feed dog, remove the cloth wool 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 it is also the place where failures are most likely to occur. Therefore, it is necessary to remove dirt frequently and add a small amount of sewing machine oil.
(3) Cleaning of other parts: the surface of the sewing machine and all parts inside the panel should be cleaned frequently to keep them clean.
