Man D2868 LE426, Инструкция по эксплуатации

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Decommissioning and recommissioning
MAN marine diesel engines D2868 LE4.. / D2862 LE4..
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Carefully read through the Operating Instructions before starting any work!
This particularly applies to the General Safety Instructions section
and the safety instructions in the various chapters.
10.3 Temporary decommissioning of the engine
Frequently, the use of ships is on a seasonal basis.
During a prolonged period of downtime, the engine is exposed to the corrosive influence of the environ­
ment. In particular the humidity of the ambient air and also the formation of condensate below the dew
point, lead to corrosion damage on cylinder liners, piston rings and valves.
NOTE
Corrosion damage to cylinder liners, piston rings and valves after prolonged period of engine
downtime
The ingress of foreign substances can necessitate the complete dismantling of the engine.
Therefore:
S
Observe measures for corrosion protection.
10.3.1 Decommissioning of the engine for up to 3 months
Simple precautions taken before the temporary decommissioning of the engine provide effective corrosion
protection:
S
Thoroughly clean the external surfaces of the engine using compressed air. Thoroughly dry the sur­
faces.
S
Fill the fuel tank with diesel fuel.
S
Ensure the correct concentration of antifreeze in the coolant and the specified mixing ratio, see publica­
tion entitled "Fuels, lubricants and coolants for MAN industrial and marine diesel engines".
S
Close all engine openings (for intake air and exhaust gas), so that no exchange of air can take place
inside the engine.
S
Drain the water from the sea water pump.
10.3.2 Decommissioning of the engine for between 3 and 6 months
If the engine is to be decommissioned for longer than 3 months, in addition to the precautions named in
10.3.1, conservation of the engine is also necessary.