Dock cranes are typically used on port wharfs. Generally, they operate outdoors, thus they must withstand the beating of rain and snow as well as the scorching sun. With the deterioration of the atmospheric environment, the increase in acidic components in rainwater poses a significant challenge for cranes that are always exposed to the elements. Rust prevention is a must, so how do we carry out maintenance and rust prevention? What should we pay attention to? Let's learn together below.

(1) For damaged paint film on metal structures, clean the component surface thoroughly, apply rust-proof paint and decorative film to protect the metal surface from rusting after rain or snowfall.

(2) In the moving parts of the crane, such as the pivot pin connection between the hoist rope and the crane, each guide wheel, trolley wheel, etc., rust prevention measures should be taken seriously. After shutting down, first clean these areas with a brush to remove any impurities, moisture, rust spots, etc. Then apply -10 or -20 diesel oil to these areas, as -10 or -20 diesel oil has better penetration than engine oil, allowing it to penetrate the loaded joints. This creates an oil film on the metal surface, and due to its low freezing point, it can withstand low temperatures.

(3) After cleaning with diesel and applying lubricant, coat with a layer of grease. Calcium or lithium-based greases are good choices due to their mechanical stability, adhesion, and water resistance, with a solidification point as low as -20°C. When applying the grease, do not apply it too thickly.

Corrosion prevention for the quay crane is a key task that cannot be taken lightly. Therefore, regular maintenance and corrosion prevention measures for the quay crane must be implemented to be effective.