Before the operation, check whether the sprayer parts are damaged, whether there is any water leakage, and whether the spray is normal. First test the water with clean water. The sprayer must also be dispensed with clean water, otherwise it will cause unnecessary damage.
The liquid tank of the knapsack sprayer should not be overfilled, so as to prevent the liquid from overflowing from the mouth of the medicine box and spilling onto the applicator when bending over. The application time should also be chosen correctly to avoid applying the medicine when the sun is strong at noon, because the pesticide is volatile at this time, and the operator sweats more, and the pesticide easily penetrates into the human body through the pores.
When spraying pesticides, the operator should stand in the upwind position, pay attention to the change of wind direction at any time, change the walking mode of the operation in time, and try to apply the medicine in parallel.
If the spraying machine malfunctions during the working process, it should stop working immediately, close the valve, and inspect and repair. If the nozzle is clogged, first turn off the nozzle switch to prevent the liquid from overflowing from the edge or switch of the nozzle. If the pipe or pump of the sprayer fails, the pressure in the pipe must first be reduced. When opening the compressed gas tank, the compressed air in the cylinder should be discharged first to prevent accidents.
In order to ensure no failure during use and prolong the service life of the sprayer, each time the use is completed, the residual liquid in the bucket should be poured out in time, washed with water and drained. At the same time, check whether there is any water in the gas chamber. Water, to remove the water joint to release water.
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