How to Use and Maintain a Frame-Mounted Motorized Sprayer: Spraying Is Easier and More Efficient
The frame-mounted motorized sprayer is a common piece of plant protection machinery in farmland. It gets its name because its frame looks like a stretcher: two people can lift it and go, and it can be set on a chemical tank or at the edge of a field to get to work. It offers high pressure and a long reach, so whether you are spraying field crops or doing spray work in an orchard, it is far less tiring than a manual sprayer, and it is especially suitable for farmers and cooperatives with larger planting areas.
Its working principle is not complicated
Simply put, the engine drives a plunger pump or diaphragm pump, which draws the chemical liquid up from the tank and pressurizes it, then sends it through a high-pressure hose to the spray gun to be sprayed out. Because of the high pressure and good atomization, the liquid can evenly adhere to both the front and back of leaves, and the control effect is noticeably better than that of a knapsack manual sprayer. The spray gun is generally equipped with an adjustable nozzle, allowing direct long-distance spraying and close-range atomization, making operation very flexible.
Correct operation makes spraying more worry-free
Before starting the machine, first check whether all connections are tightened, whether the hoses are aged or cracked, and whether the lubricating oil is sufficient. When adding chemical liquid, it must be filtered to prevent impurities from clogging the nozzle. After starting, let it run idle for a short while first, and begin work only after confirming there are no abnormal noises. When spraying, work from the downwind side toward the upwind side and from the inside outward, to avoid over-spraying or missing spots. When adding chemicals midway or taking a break, do not let the pump run idle and dry-grind for a long time.
After the work is finished, do not rush to pack up. First drain the residual liquid, then circulate clean water to rinse the pump body and hoses for a few minutes, washing away the remaining chemical liquid, which can greatly reduce corrosion of the pump and hoses. The nozzle should be removed and cleaned separately; if it is clogged, clean it with a soft-bristle brush or a wooden stick. Never poke it hard with wire, because once the nozzle hole is enlarged, the atomization effect is ruined.
Pay attention to both safety and machine life
When spraying, wear protective clothing, a mask and gloves, and work on the upwind side to avoid chemical liquid drifting onto your body with the wind. Refueling the engine must be done after shutting down and stopping the engine, and smoking at the edge of the field is even more out of the question. Before long-term storage, clean the machine thoroughly, drain all liquid from the pump, and place it in a dry, ventilated place, avoiding direct sunlight and rain.
As for the subsidies everyone cares about, the catalogs and standards for agricultural machinery purchase subsidies vary from place to place. Whether the frame-mounted sprayer is included and how much the subsidy is should be based on the latest information published by the local agricultural machinery authority. Before buying, go and ask first, so you can save whatever you can. When choosing a machine, it is recommended to give priority to brands with local after-sales service outlets, so that parts are easy to buy and repairs are convenient, making it more reassuring to use.