The maintenance core of the garden metal swing arm spray gun revolves around the four core components of the swing arm rotating mechanism, nozzle, seal, and metal body. Standardized implementation can greatly extend the service life of the equipment and avoid common faults such as uneven spraying and water leakage.
🧹 Daily cleaning and maintenance
Cleaning after operation: After each spraying, rinse the surface of the spray gun with clean water to remove any residual sediment, fertilizers, pesticides, and other impurities. Use a soft cloth to dry the metal surface to avoid chemical residues corroding the paint surface and metal substrate.
Special cleaning of nozzle: Regularly disassemble the nozzle, use a soft bristled brush to clean the scale and debris inside the spray hole, and prohibit poking the spray hole with hard objects such as iron wire to prevent deformation of the spray hole and deviation of the spray trajectory.
.Channel dredging: Disassemble the internal channel of the spray gun every quarter, clean the accumulated scale and impurities, ensure smooth water flow channels, and avoid excessive pressure loss affecting the spraying radius.
.⚙️ Maintenance of core moving parts
Lubrication of rocker arm mechanism: Drop a small amount of light lubricating oil at the rocker arm shaft and swing arm hinge point every 2-3 months to avoid dry wear and sticking of metal parts, ensuring flexible swing and even rotation of the rocker arm.
Inspection of rotating bearings: Disassemble the rotating bearings of the spray gun every year, clean the old lubricating grease, and refill with new lithium based lubricating grease. Replace the bearings in a timely manner when the wear and tear exceeds 0.2mm.
.Verification of fastening components: Regularly check the tightness of the spray gun base and rocker arm fixing screws, tighten them in a timely manner if they become loose, and prevent spraying failures caused by component detachment during operation.
.🛡️ Sealing and anti-corrosion protection
Sealing component status inspection: Check the O-ring and rotating seal inside the spray gun every six months. If there is aging, hardening, cracking, or water leakage, replace the waterproof rubber seal with the same specification.
Metal body rust prevention: Before long-term idle, apply a thin layer of rust proof oil on the metal surface and store it in a dry and ventilated place to avoid rusting and sticking in a humid environment.
.Winter antifreeze treatment: In low temperature environments during winter, drain the residual water inside the spray gun to prevent water from freezing, expanding, freezing, and cracking the metal shell and seals.
.⚠️ Fault Warning and Emergency Response
Investigation of Abnormal Spray Trajectory: When there is a spray deviation or a significant reduction in the spraying range, priority should be given to checking whether the nozzle is blocked and whether the spring force of the rocker arm is attenuated. The corresponding components should be cleaned or replaced in a timely manner.
Water leakage troubleshooting: When there is water leakage at the connection of the spray gun, check whether the threaded raw material tape is damaged and whether the sealing gasket is aging. Re wrap the raw material tape or replace the sealing gasket to solve the problem.
.Handling of arm sticking: When the arm swing is not smooth, disassemble the shaft to clean rust and debris, and replenish lubricating oil to restore normal operation.
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