Using your DeWalt Hedge Trimmer Attachment is easy. First, attach it to your compatible power head according to the instructions. Once attached, adjust the 135° articulating head to the angle you need for trimming. When using, hold the trimmer firmly and move it slowly along the branches. Make sure to wear protective gear like gloves and goggles. As for maintenance, after each use, clean the blade with a brush to remove debris. Check the blade regularly for sharpness and replace it if it becomes dull. Store the attachment in a dry place to prevent rusting. Also, if you're not using it for a long time, remove the battery or disconnect it from the power source.