The appropriate direction for a chain in a chainsaw varies depending on the location of the nose wheel. Chainsaw chains can move either clockwise or counterclockwise. The direction of chainsaw chains varies by model and brand, but chains should always be placed so that they move towards the nose wheel when activated.
In addition to facing the proper direction, chains must be properly attached to the chainsaw to allow for safe and effective use. Chains should be in contact with the gauge located on the chainsaw and their teeth should be filed before use. Chainsaws have several types of teeth, such as cutting and filing teeth, that must be sharpened before using to allow for safe operation.