Sprayer common faults and maintenance methods
The sprayer is a major plant protection machine and many failures occur after a period of use. Every year, there are always a lot of farmers carrying sprayers to overhaul agricultural stations. Its common faults and overhaul methods are described below, hoping to help the majority of farmers.
Do not spray continuously evenly.
Cause: When the pump was started, the switch was not closed, leaving the air chamber full of liquid and no compressed air.
Repair: Remove the air chamber, pour the liquid, close the switch, and re-pump the air so that the air in the air chamber is expelled.
Leakage.
Cause: Leakage around the piston rod on the pump cap.
Repair: If the liquid exceeds the safe water level, the excess liquid should be poured out below the safe water level. If the felt or felt under the pump cover is damaged, it should be replaced.
No fog can be sprayed.
Causes: nozzle hole, nozzle blockage; switch's dirty water circle damage or leakage network damage; due to serious wear and tear of the ball valve leads to lax close.
Repair: Fold off the nozzle cap, remove the nozzle plate for cleaning and decontamination, replace the water ring, gasket, filter, and cup; clean the nozzle and ball valve.
It is difficult to pull the joystick.
Cause: Rugged parts of each activity; stopper rod bent; outlet valve blocked; skin ring stuck or damaged.
Repair: Remove the connecting rod, clean it with kerosene, and then apply the lubricant as it is. Straighten the plug rod, remove the air chamber and the outlet valve seat, remove the ball valve and clean or replace the new one.
Air chamber without pressure.
Cause: The sealing gasket is damaged by air leakage; the cup shrinks or is damaged; the water inlet and outlet valves are not closed tightly.
Repair: Replace the gasket. Replace the gasket by dissolving it in the oil and soak it. Or replace it with a new one. Remove the valve seat and clean it, or replace the ball valve.
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