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Proper use and maintenance of the knapsack sprayer can prolong its service life and reduce maintenance costs. The matters needing attention in use are now introduced as follows.
Precautions for use
For formal use, you must add the medicine first and then water, and the liquid level of the medicine should not exceed the safe water level. Before spraying, move the rocker more than 10 times to increase the air pressure in the barrel to the working pressure. Do not use excessive force when turning the joystick to avoid explosion of the air chamber.
When the chemical liquid is first filled, since the air chamber and the spray bar contain clear water, the concentration of the chemical liquid sprayed during the first 2 to 3 minutes of spraying is low, so pay attention to the supplementary spray to avoid affecting the control effect of pests and diseases.
After the work is finished, you should pour out the remaining liquid medicine in the bucket in time, wash it with clean water and pour it dry. At the same time, check whether there is water in the air chamber. If there is water, remove the water connector to release the water.
If the sprayer is not to be used for a short period of time, the main parts should be cleaned, wiped dry and installed, and stored in a cool and dry place. If it is not used for a long time, grease all metal parts to prevent rust.
Common faults and troubleshooting
Common faults and troubleshooting methods in use are as follows: Insufficient spray pressure, poor atomization. If the water inlet ball valve is set up by dirt, the water inlet valve can be removed and the dirt can be removed with a cloth; if the cup is damaged, it can be replaced New leather cup; if there is no sealing ring installed in the connection part, or the sealing ring is damaged and the air leaks, the sealing ring can be installed or replaced.
No fog
If the oblique hole of the nozzle body is blocked by dirt, the oblique hole can be cleared; if the nozzle hole is blocked, the nozzle hole can be removed and cleaned, but hard objects such as iron wire or copper needle should not be used to poke the nozzle hole to prevent the hole from expanding and improve the spray quality Deterioration; if the filter screen in the casing is blocked or the water valve ball is set up, the filter screen should be cleaned and the dirt that has set up the ball should be cleaned.
If the switch is leaking or cannot be screwed, if the switch cap is not tightened, the switch cap should be tightened; if the washer on the switch core is worn out, the gasket should be replaced; the switch cannot be screwed because it has been placed for a long time or used for a long time, the switch core If it is stuck due to the corrosion of the agent, the parts should be removed and cleaned in kerosene or diesel; if it is difficult to remove it, it can be soaked in kerosene for a period of time, and then it can be removed after disassembly. Do not hit with hard objects.
If the joints are leaking due to loose joints, the nuts should be tightened; if the washers are not leveled or damaged, the washers should be leveled or replaced; if the washers shrink and harden, they can be soaked in animal oil before use.
