The mobile spray duster is light and flexible, easy to operate, high in efficiency, low in cost and stable in performance. It is widely used in the prevention and control of field crop pests and diseases such as wheat, rice, rapeseed, corn and cotton. 1 The correct use of Taishan - 18 machines as a representative, as a system introduction. 1.1 According to the direction of the wind direction and direction of spraying To ensure the quality of the work, the spraying method should be side wind side spray, that is, the spray direction should be consistent with the wind direction or slightly skewed. The direction should be perpendicular to the wind direction. 1.2 Keeping the appropriate walking speed and nozzle height The walking speed of the pilot is about 1m/s. The cotton pest control can be sprayed for 4 to 6 lines (about 3 to 5 meters) once, and the latter can be sprayed once. - 4 rows (about 1.5 - 3 meters), the height of the nozzle should be based on the distribution of pests in the crops. Early cotton nozzles generally 30-40 cm from the top of the plant is appropriate, then bend down the installation. In the middle stage of cotton prevention and control of the second generation of cotton bollworm, the nozzle is about 30 cm lower than the top of the cotton plant. 1.3 Reasonable control of the amount of spray Taishan - 18 machines per minute the maximum amount of water spray 1.7 kg, dusting powder 3 kg, the amount of spray should be determined according to the spraying object, the user to adjust the spray switch, so that the spray effect to achieve the best. 2 Precautions 2.1 The platinum gap must always be between 0.25 and 0.35 mm. If the platinum gap is not correct, the gasoline engine will not start or operate normally. 2.2 If the carburetor is cleaned and adjusted in time, if the carburetor is not used for more than 7 days, the fuel in the machine must be completely netted to prevent the evaporation of the gasoline and the engine oil will block the oil circuit.
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