(1) Avoid spraying mist or dripping. A common issue is a clogged filter inside the housing, which restricts the flow of liquid. Another possible cause is a blocked slanted hole in the spray nozzle, which can prevent proper atomization of the solution.
(2) Water and gas are sprayed together during operation. This usually happens when the infusion tube inside the tank becomes detached due to poor welding, or when it gets corroded over time by the chemical solution, leading to unintended mixing of air and liquid.
(3) The spray pattern is scattered and lacks a conical shape. This often occurs when the nozzle hole is damaged or misshapen, or when it's partially blocked by dirt or residue from previous use. Cleaning or replacing the nozzle may resolve this issue.
(4) The air cylinder fails to draw in air. One common reason is that the air cup has shrunk or hardened due to age or exposure to chemicals, causing it to lose its sealing ability. Another possibility is that the screw at the bottom of the cup has come loose, allowing the cup to detach and stop the air intake process.
(5) There is a leak from the gas cylinder cap or water cap. This is typically caused by worn-out or improperly tightened seals. Checking and replacing the seals can help restore a proper seal and prevent leaks.
(6) The plunger rod and gland cover fail to release water properly. One common cause is desoldering between the cylinder wall and the pump base, which disrupts the internal structure. Another issue could be that the steel ball in the valve housing is stuck with debris, preventing it from making proper contact with the valve body and blocking the flow.
(7) The switch leaks. This is usually due to damage to the switch itself or aging of the asbestos rope under the switch cover, which can lose its effectiveness over time. Replacing the switch or the sealing components should fix the problem.
These issues are commonly encountered during regular use and maintenance of the equipment. Regular inspection and cleaning can help prevent many of these problems from occurring. If you notice any of these symptoms, it’s important to address them promptly to ensure safe and efficient operation.
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