近年来，机动喷雾器普及很快，社会拥有量逐年增加，仅无为县，1998年已达2000余台，成为防治农业病虫害的重要机具。做好机动喷雾器的冬季保养，可以延长机器使用寿命，提高机器使用效率。机动喷雾器的冬季保养，按结构分，有塑料件保养和发动机保养。1．塑料件保养塑料件有水 In recent years, the popularity of motorized sprayer is very fast. The amount of social ownership has increased year by year. Only in Wuwei County, it reached 2,000 units in 1998, becoming an important tool for preventing and controlling agricultural pests and diseases. Good motorized sprayer winter maintenance, you can extend the service life of the machine, improve machine efficiency. Motorized sprayer winter maintenance, according to the structure points, a plastic parts maintenance and engine maintenance. 1. Plastic parts Plastic parts have water