1. Prepare the machine and tools according to the instructions before spraying, such as lubricating the moving parts, tightening the loose screws and nuts, and inflating the tires.
2, check the fog flow shape and nozzle spray volume. Put some water in the liquid medicine box, start the spray machine in place to spray under working pressure, observe the fog flow shape of each nozzle, if there is obvious streamline or skew, replace the nozzle. Then cover a small section of soft plastic tube on each sprinkler head, put the container below, spray under normal working pressure, with stopwatch timing, collect in 30-120 seconds of each sprinkler head mist, determine the amount of liquid of each sample, calculate all sprinkler head 1 minute average spray volume. Nozzles with a volume 10% or higher than average should be replaced.
3. Calibrate the spray machine, measure the length of 50 meters in the field to be sprayed, fill half a box of water in the liquid medicine box, adjust the tractor's speed and working pressure, spray water in the measured field, collect the liquid from one of the spray heads in the field of 50 meters long, and measure the number of grams or milliliters of liquid by weighing or measuring cup.
4. Mixing pesticides thoroughly and carefully is one of the important steps in spraying machine operation. Mixing unevenly will result in uneven application, when more or less. If stirred improperly, some pesticides can form transformed latex, a thick mayonnaise-like mixture that is difficult to spray or remove. You can add pesticides to the liquid medicine box after adding about half of the box of water, and add medicine while adding water. Pesticides like wettable powder should be stirred until a box of liquid medicine is sprayed. For some emulsifiable oils and wettable powders, if they are mixed with water in a small container to form an emulsion or paste, and then added to the liquid container with water in it, they can often be stirred more evenly.
5. Field operators must pay attention to maintaining forward speed and working pressure. Attention should also be paid to nozzle blockage and leakage; Control the direction of travel, do not make the spray and the previous line overlap and leakage spray; Avoid liquid medicine box empty, resulting in pump dehydration operation; Pay attention to the collision of spray rod against obstacles, etc.
6, cleaning spray machine. The sprayer must be carefully cleaned after each pesticide is sprayed, at the end of the spraying season, or when repairing the sprayer. Pesticides splashed on the sprayer surface should be removed immediately at each dosing. Sprayer appearance can be cleaned thoroughly with soap and water or neutral detergent, rinse with water, solid liquid sediment available bristle brush to brush, used organophosphorus pesticide sprayer, internal to clean with soap solution, spray organochlorine pesticides with acetic acid instead of soap after cleaning, finally pumped soapy water spray and spray cleaning, cleaning nozzle and filter can also use the above solution. Wear protective equipment when cleaning the sprayer to prevent contact with pesticides.
7. Save the spray machine. Keeping your sprayer after the spray season can extend its service life and allow you to use it in time for the next season. Before storage, clean the spray machine, remove the nozzle, nozzle piece and nozzle filter, put it into a clean diesel bottle, and put it into the nozzle with a non-hole nozzle piece to prevent dirt from entering the pipeline. Keep the sprayer indoors to protect the plastic liquid medicine container from the sun.
