Knapsack sprayer how to troubleshoot and maintain

The main faults of the backpack sprayer are as follows.

First, the nozzle is not fog or abnormal. One of the reasons is the clogging of the split cone copper or flow valve. The exclusion method is to unscrew the turntable cap and flow valve assembly and remove the blockage with a thin wire. The second is the flow valve pressure nut.

Second, the impeller speed is low, large droplets. The reason for this is that the engine speed is low and the engine can be adjusted to reach the rated speed. The second is that the bearings are not flexible and can clean the bearings. If it is damaged, you need to update the bearing. Third, the hollow shaft rubs against the adjacent parts. Adjust or tighten loose parts to eliminate friction.

Third, the pipeline leakage of drugs. The first reason is that the reducing tube is not plugged, and the reducing tube can be plugged. The second is the deformation of the reducing tube through the seal, and the seal can be replaced. The third is the relaxation of the drug delivery or booster tube, which can be used to replace the clamp or replace the drug delivery tube.

Knapsack sprayer maintenance is very important. After each day of operation, the medicine solution of the medicine box should be excluded. Use diesel oil to clean the medicine box, medicine box cover, medicine delivery tube, handle switch, and flow valve to ensure that the medicine path is unimpeded. Ultra-low-volume nozzles should be serviced once every three days, mainly to clean bearings and add new grease (add 1 to 2 drops of molybdenum disulfide grease, then add 2-3 drops of oil). When storing, all parts of the nozzle should be cleaned and inspected. The bearing should be coated with anti-rust oil, wrapped in paper and stored in a dry place.

In addition, the walking speed during spraying should be uniform and the spray head should swing up and down to avoid over- or under-spraying. Improper fogging can cause phytotoxicity, and over-dilution can affect control. When spraying a tall tree, the spray nozzle can be sprayed vertically upwards. Because the nozzle is vertical, the flow rate is reduced. In order to achieve a certain droplet density, the walking speed can be appropriately slowed, and it should be noted that the amount of liquid medicine in the medicine box can not be less than 1/4 box.

When spraying, pay attention to changes in wind speed and direction. If the degree of change has not been adapted to the original direction of travel and the amplitude of the spray, stop the spray in place and wait for the appropriate wind speed and direction or change the direction of spray or spray. Do your homework.

When spraying, avoid the sprinkler touching the trunk, crops or other hard objects. Do not start the engine with the sprinkler flat on the ground.

When the wind direction and strike angle is less than 45 degrees and the wind speed is more than 5 meters/second, it is not suitable to carry out ultra-low spray. When controlling trees above 5 meters, the wind speed must not exceed 3 meters/second. (Yao Liao)

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Amaranth Seeds

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