Each spring is the peak period for the occurrence and prevention of pests and diseases of various crops, and it is also a time period when sprayers and other spraying instruments are used frequently. Due to its simple structure, convenient use, and low price, the hand sprayer is an important plant protection device widely used by many rural households in the country. At present, wheat and rapeseed spring pest control materials and equipment preparation stage, but some farmers friends only pay attention to the use of equipment, do not pay attention to maintenance, when they are used, often rush, resulting in a lot of inconvenience in the actual operation. The usage, maintenance and troubleshooting methods of sprayers are described below:
First, the use of maintenance
1, when using the sprayer should check whether the connection leak, first install fresh water test spray and then load the agent for spraying.
2. After adding the liquid, the liquid level must not exceed the safe water level. Before the spraying, the first plate was moved more than 10 times to raise the pressure in the barrel to the working pressure. Note that the plate rocker should not be excessively forceful so as to prevent explosion in the air chamber.
3. After the spraying operation is completed, the remaining liquid in the barrel should be poured out in time, and then washed and inverted to dry with clean water. At the same time, check if there is any stagnant water in the air chamber. If water is present, remove the water outlet and discharge the accumulated water.
4. When it is no longer in use in the short term, the main parts should be cleaned, wiped dry, and placed in a cool dry place; if not used for a long time, pay attention to the application of butter to all metal parts to prevent rust.
Second, troubleshooting
1, switch leakage. The wear of the switch gasket or the wear of the switch asbestos wire will cause the switch to leak. Replace the new gasket or asbestos thread.
2, the switch is not flexible. When the sprayer is left unused for a long time, the switch will be embroidered due to the liquid. The switch can be removed and put into the kerosene for cleaning, and the rust can be removed. A suitable amount of lubricant can be applied and the switch cap can be tightened.
3, the air chamber does not enter the air, the pressure under the rocker does not work. This may be due to shrinkage or hardening of the cups or loosening of the nut on the bottom of the cup. The skin should be slightly opened or replaced with a new skin, immersed in animal oil, lubricated and put on, coated with a little oil, and tighten the bottom nut.
4, poor atomization quality. It may be that the nozzle orifice is blocked, the strainer inside the casing is blocked, or the water inlet and outlet ball valves are contaminated. Should clear the nozzle holes to remove debris; if the casing plug should be disassembled and cleaned the filter, check the ball valve, remove dirt.
5, the gas chamber plug rod automatically rises, the top of the gland water. Due to the cracking of the gas wall or the bottom of the gas chamber or the blockage of glass balls in the valve housing, it can not be caused by the close fitting of the valve body or the damage of the leather bowl. Repair tin cracks, remove body debris, and replace the skin.
6, air chamber cover leak or add water cover leakage. The reason is that the skin gasket is damaged or the flange and the gas chamber are removed from the weld, and the gasket or the tin welding spot should be replaced.
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