Using the DeWalt DCCS670X1 chainsaw is easy. First, make sure the battery is fully charged. Attach the bar cover for safety during transport. When you're ready to use it, remove the bar cover. Adjust the chain tension using the tool-free knob to ensure proper bar clamping force. Before starting, check the oil level in the automatic oiler. The auto - oiling feature will keep the chain lubricated during use. When cutting, hold the chainsaw firmly and keep a stable stance. Use the chain brake to stop the chain quickly in case of kickback. After use, clean the chainsaw and check the chain for any damage. Store it in a dry place. If you have any issues, you can rely on the 3 - year limited warranty, 1 - year free service contract, and 90 - day money - back guarantee.