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The maintenance of garden metal swing arm spray guns should revolve around five core aspects: cleaning, lubrication, inspection, adjustment, and storage. The following are specific methods:

1. Cleaning and maintenance: prevent blockage and corrosion

Daily cleaning

Spray gun body: Immediately rinse the inside of the spray gun with clean water or special solvents (such as isopropanol) after use to remove residual paint or impurities. Avoid using strong acid or alkali cleaning agents to prevent corrosion of metal parts.

Nozzle and air cap: Use a soft bristled brush or specialized tool (such as a silver needle) to clean the nozzle, air cap, and air hole to prevent blockage.

. If the blockage is severe, it can be cleared by soaking in solvent, but it is necessary to avoid damage caused by scratching with hard objects.

Material pipeline: Rinse the material pipeline with solvent to ensure no residual coating and prevent blockage of the pipeline after curing.

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Deep Cleaning

Regular Disassembly: Disassemble the spray gun every 1-2 weeks according to the frequency of use, thoroughly clean all components (such as the needle, spring, seal ring, etc.).

. Clean cloth wiping: Use a clean cloth to wipe metal parts, remove oil and dust, and maintain a smooth surface.

2. Lubrication and maintenance: reduce wear and ensure flexibility

Lubrication of key parts

Needle and spring: Apply special lubricating grease (such as silicon-based grease) to the needle and spring parts to reduce sliding friction and prevent rust.

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Threads and bolts: Regularly apply oil to trigger bolts, air cap threads, paint adjustment bolts, and other parts to ensure flexible rotation.

. Sealing gasket: Apply oil to the sealing gasket to keep it soft, enhance sealing, and prevent air or paint leakage.

Lubrication frequency

For high-frequency use or harsh environments, it is recommended to lubricate every 3-5 days;

; Under normal circumstances, lubricate once every 1-2 weeks.

3. Component inspection: timely detection of hidden dangers

Daily inspection

Spray effect: observe whether the spray surface is uniform and whether the wetting area deviates from the center position.

. If there are problems such as high fan pressure or blocked atomization holes, the air cap needs to be cleaned or replaced. Leakage situation: Check whether the sealing parts such as the needle valve gasket and air valve gasket are leaking. If there is a leak, replace the gasket in a timely manner.

Rotational flexibility: Test whether the rocker arm, nozzle and other components rotate smoothly. If there is any jamming or abnormal noise, it needs to be disassembled, inspected and lubricated.

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Regular inspection

Wear condition: Check the gun needle, nozzle and other easily worn parts every 1-2 months. If cracks or deformations appear, replace them immediately.

. Torque Consistency: When installing the nozzle and paint seal ring, ensure that the torque meets the supplier's requirements to ensure stable spraying output and paint film thickness.

4. Adjustment and Calibration: Optimize Performance

Spray Width Adjustment

If the spray width is too narrow in the middle, it may be due to excessive fan pressure or clogged atomization holes, and the air cap needs to be cleaned or the pressure adjusted.

. If the infiltration zone deviates from the center position, it may be due to dirty fan-shaped holes or air diversion rings, and relevant components need to be cleaned or replaced.

Adjustment of rocker arm and nozzle

Swing arm angle: If the angle is too small, it may be due to the rocker arm spring being pressed too tightly or the rocker arm being installed too high. It is necessary to relax the spring or lower the rocker arm appropriately.

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Nozzle speed: If the speed is too fast and the range is not enough, the nozzle speed needs to be lowered;

; If the speed is too slow or the rotation is abnormal, it is necessary to check the gap between the hollow shaft and the sleeve shaft, the blockage of mud and sand, and clean or adjust it.

Fifth, Storage and Protection: Extend Service Life

Dry Environment

After cleaning and lubricating the spray gun, it should be stored in a dry and ventilated room to avoid rusting or corrosion caused by humid environment.

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Dust and dirt prevention

Wrap the spray gun with a dust cover or special packaging bag to prevent dust and impurities from entering the interior.

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Avoid heavy pressure

When storing, avoid heavy pressure or collision on the spray gun to prevent component deformation or damage.

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