Black sludge

One of our service engineers was engaged to investigate leakage on this vessel. Soon a black sludge (which is a residue of degraded EAL oil that has been contaminated with water) had been found. Our service engineer advised the customer to switch to a fully synthetical saturated ester oil to prevent this situation from happening again. Because of the degraded oil had failed to properly lubricate the stern tube system, two of the three stern tube seals showed severe heating damage. In coordination with the superintendent, all the AFT stern tube seals were replaced with our own spare parts, compatible to Kobelco CX, size 400.

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