Using skill of sprayer
The use of knapsack sprayer
1. correctly install sprayer parts. Check whether the connections leak, use, first install water test spray, and then loading chemicals.
2., the first use of drugs should first add water, liquid level can not exceed the safe water level line. Before spraying, the rocker is pulled more than 10 times, so that the pressure in the bucket rises to the working pressure. Don't force too much when you pull the rocker, so as to avoid the explosion of the air chamber.
3. when the initial loading liquid medicine, because the air chamber and the spray rod contain the clear water, in the spray initial 2~3 minutes the liquid medicine concentration is lower, therefore should pay attention to the supplementary spray, in order to avoid affects the disease and insect pest control effect.
4. after the completion of the work, should be in time to remove the residual liquid in the barrel, and washed with water, dry, at the same time check whether there is air inside the water, if there is water, it is necessary to remove the joint, release water.
5. if the sprayer is not used in the short term, the main parts should be cleaned, dry and packed and stored in a cool and dry place. If you don't use it for a long time, you should apply butter to each metal part to prevent rust.
Common faults and elimination methods in use:
The spray pressure is insufficient, poor atomization: if the inlet valve is put dirt, remove the water inlet valve, with a cloth to remove dirt; if damaged because the skin bowl, it can replace the new leather bowl; if not installed joint seals, or because of damage to the seal and leakage, can be used to replace the sealing ring.
Do not spray fog: if for oblique hole nozzle body is blocked by dirt, can dredge the inclined hole; if the plug nozzle can open the cleaning nozzle, but do not use copper wire or other hard objects to poke holes, prevent the hole expansion, the spray quality becomes worse; if the casing or filter plug the valve ball is small, should clean the filter and cleaning up the ball on the dirt.
Switch or Water Leakage stop: if the switch cap is not tightened, screw the switch cap; if the wear due to switch on the core washer, replace the gasket; switch does not move, the reason is placed longer, or used for a long time, the switch core agent for etch and bonding, remove parts in kerosene or in diesel oil cleaning; difficult to remove, soak for a period of time in kerosene, then remove it can be removed, with hard things beat.
The connecting parts of Water Leakage: if for loose joints, screw nuts; if the washer is not damaged due to flat or flat washers, should be, or replace the gasket; if the dry shrinkage of hardened washers can be macerated in animal oil after use.
Advantages and application methods of ultra low volume sprayer
Advantages and application methods of ultra low volume sprayer for controlling flowers and trees and lawn
Compared with the common sprayer, the ultra low volume sprayer has the advantages of fast, high efficiency, portability and cost saving in the prevention and control of diseases and insect pests of flowers, lawns and crops. Specifically expressed as:
Less water consumption
The ultra low volume sprayer uses a pesticide solution, or only needs to be diluted very low, so it doesn't need a lot of water.
Spraying liquid per mu is about 100 grams, not dozens of kilograms, or even hundreds of kilograms. Therefore, the labor intensity can be greatly reduced and labor force can be saved.
Droplet uniform distribution
Ultra low volume sprayer is not liquid will be directly sprayed on plants with cloth, but the wind makes only tens of microns in diameter of droplet dispersion in drift around the plant "micro flow" function, the droplet distribution in plant leaves and whole plant and the positive and negative side. This is better than the addition of a large amount of water diluted chemicals to kill insect pests, especially for some resistant insects. The killing function of pesticide solution is several times or even several times higher than that diluted with water.
Easy to use
The head is always kept at about 1 meters above the plant when spraying with ultra-low volume sprayer. Because the sprayer eliminates the liquid medicine nozzle, the liquid medicine flows out automatically when the medicine bottle is put down. Therefore, before the motor is opened, the medicine bottle should be below and the head is over. When spraying, the motor should start first, then change the position of the bottle and the head, make the medicine bottle on the top, the bottle mouth downward, the bottle body perpendicular to the ground, and the liquid medicine will flow out automatically.
When spraying, from the downwind direction, the walking route should be separated from a certain distance, that is, the spray amplitude. The size of the spray should be flexibly controlled according to the size of the wind speed. When the wind speed is small, the spray width should also be smaller, otherwise it should be larger, generally 3 meters to 3.5 meters. Spraying time is best in the morning, afternoon or cloudy day, avoid scorching sun exposure. Ultra low volume spraying, the best use of Systemics fumigant or stomach poison. The dosage is generally about 50 grams per mu. If proper amount of water is added, the "equal quantity method" can be used".