Able to cut twigs and small branches with a multi-toothed blade, the hedge trimmer is designed to trim shrubbery. Each time before you use it (or before storing it for the season), take a clean cloth dampened with machine oil and wipe down the blades. The cutting blade should always be kept sharp. Simply use a smooth, metal file for this. Inspect the brush assemblies located on each side of the commutator. Use long-nosed pliers to lift out each brush assembly and press each one to test its spring. Replace if necessary. Every so often, check on the motor and lubricate the bearings. Just use a toothbrush or something similar to brush off dust from the motor and its fan. Clean and lubricate blades (and bearings), to prevent dull or dirty blades. Remember, never use a hedge trimmer in damp conditions.