Regular mowing affects your lawn's density, vigor, watering needs, weediness and resistance to weather stress. In the video, viewers learn maintenance, operation and safety procedures to achieve the best performance from the common rotary mower. The importance of wearing proper equipment and performing a pre-operational check is emphasized. The working parts of the mower are explained. Also covered are cutting height, mowing patterns, cutting speed, mowing on slopes and cooling the engine before refueling. Routine maintenance tasks shown include keeping air vents clear, cleaning the foam air filter, checking the spark plug, changing the oil (including transmission service for self-propelled models) and sharpening and balancing the blade. A supplement is included.