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The Challenge

The drive chain is used to operate the main lock gates at a very busy dockyard in the North Atlantic. The chain is submerged in seawater at all times, and it operates under heavy loads. As a result of these conditions, the pins and links of the chain rusted and seized up. Due to the poor condition of the chain, more energy was needed to open and close the gates, leading to damage to the transmission system.

Environment

Seawater

The Solution: Interflon Grease LS1/2

Apply a thin layer of Interflon Grease LS 1/2 to the pin and bush when installing the chain. Next, apply Fin Grease LS2 at all lubrication points. After placing all pins, thoroughly lubricate bearings with Interflon Grease 1/2 until the grease is visible at the bush.

Results

The lubricated pins are in good condition and continue to operate very smoothly, even after 10 years submerged in seawater.