Gaskets are a small but crucial part of a sewing machine that is often overlooked. Gaskets are used to create a seal between two machine parts, keeping pressure and lubrication steady and preventing leaks. The sewing machine's gaskets prevent leaks, jams, and other malfunctions from occurring. Common materials for gaskets include rubber, silicone, and cork. Depending on their location and purpose within the sewing machine, they come in a wide range of sizes and shapes. Finding the gasket is the first step in removing it with a screwdriver or other tool. After removing the old gasket, a new one can be installed in its place, with care taken to ensure that it is centered and seated correctly. The final step is to reinstall the replaced components and run a test of the machine to ensure it is operating as intended.