Using the DeWalt DCPS620M1 cordless pole saw is easy. First, make sure the battery is fully charged and properly inserted. Then, extend the pole to the desired length and lock it in place. Hold the saw with the comfort - grip handle, and turn it on. Start pruning branches by guiding the bar and chain along the branch. Use the tree hook to pull down and remove pruned branches. When using the saw, always wear safety gear like gloves and goggles. Keep your body away from the moving parts. Don't over - reach to avoid losing balance. For maintenance, check the oil level regularly and refill it when needed thanks to the auto - oiling feature. Clean the bar and chain after each use to keep them in good condition. Store the saw in a dry place to prevent rusting. If you encounter any problems, refer to the manual or contact DeWalt's customer service.