Special sewing machine oil must be used. The sewing machine should be fully oiled after one day or several days of continuous use. If oil is added between uses, the machine should be idled for a while to fully soak the oil and shake off excess oil, and then wipe the machine head with a clean soft cloth. Wipe clean the countertop to avoid soiling the sewing material. Then thread and sew the rags, use the movement of the sewing thread to wipe off the excess oil stains, until there is no oil stains on the rags, and then proceed to formal sewing.
