Maintenance 
The use environment of the plant protection UAV is bad. If the maintenance is improper, the service life of the plant protection UAV will be reduced. In addition to basic maintenance according to the safety summary, the user should maintain regularly during use to extend the service life of the plant protection UAV.
1. After the spraying operation is completed, or when it is necessary to change the type of chemical solution to be sprayed, it is necessary to clean the chemical box and the spraying system. First, empty the liquid medicine in the medicine box, then pour clean water into it and spray it until the water mist sprayed by the nozzle is free of residual pesticides.
2 after the spraying operation is completed, the residual pesticide on the surface of the UAV shall be wiped clean with a wet towel.
3. The battery needs regular maintenance. Please use the charger maintenance function to charge and discharge the battery voltage to the storage voltage. If it is an intelligent battery, the charger maintenance is not required (except the intelligent battery).
4 after each use, please carefully check whether the paddle used on the aircraft has cracks and broken signs, and whether the surface of the battery used has holes and is pierced by sharp objects. If there is a damaged battery, it will cause combustion and damage the plant protection machine.
5 carefully check whether all parts and accessories are in good condition every other week during use, especially check whether the paddle used on the aircraft has cracks and broken signs, and whether the surface of the battery used has holes and is pierced by sharp objects.
6 during use, carefully check whether the remote controller is in good condition and can be used normally every other week. Carefully check whether the wires on the flight control are loose and damaged and whether the GPS is loose.
7 before and during use (every other week), carefully check whether the aircraft body is loose, whether the connecting parts are firm, whether the screws are tight, especially whether the motor is loose.
8 before use, check whether the motor is clean, whether there are foreign matters and whether the motor rotates smoothly.
