Clean the unit using a damp cloth with a mild detergent
Do not use any strong detergents on the plastic housing or the handle. They can be damaged by certain aromatic oils, such as pine and lemon, and by solvents such as kerosene. Moisture can also cause a shock hazard. Wipe off any moisture with a soft dry cloth.
Use a small brush or the air discharge of a small vacuum cleaner brush to clean the air vents on the rear housing.
Keep the air vents free of obstructions.
NOTICE: When the line-cutting blade becomes dull, please sharpen it performed by a qualified service technician or replace with a new line-cutting blade as necessary.