Daewoo ST Series Betriebsanleitung PDF herunterladen (Seite 39)

take care to see that only the compressor wheel is immersed and that the turbocharger is

supported on the bearing casing and not on the wheel.

4.5.5. Exhaust gas check

Exhaust gas depends on much or less of it shows whether combustion condition of the engine

is good or not. If exhaust gas is any abnormal condition like excessive smoke, white smoke,

black smoke, the engine should be serviced maintenance from specialist.

4.6. Fuel System

As fuel injection pumps and injection nozzles consist of very complicated and precise

components, the contamination of fuel causes the clogging of the nozzle or the sticking of the

injection pump components. Therefore, the cleanness of the fuel system should be maintained

at any time.

If the engine is equipped with a fuel water separator, drain off any water that has accumulated.

Water in fuel can seriously affect engine performance and may cause engine damage.

4.6.1. Priming pump strainer cleaning

Clean the priming pump strainer every

100 hours operation. The strainer is

incorporated in the priming pump inlet

side joint bolt. Clean the strainer with the

compressed air and rinse it in the fuel

oil.

4.6.2. Fuel tank check & cleaning

Fill the tank with recommended fuel and should reduce water condensation of the fuel tank as

possible. Also it is important for the engine performance to keep the fuel cool.

Make sure fuel supply valves (if used) are opened before run.

In marine environment, the most likely fuel contaminants are water and microbial growth

(black “slime”). Generally, this type of contamination is the result of poor fuel handling

practices.

Black “slime” requires water in the fuel to form and grow, so the best prevention is to keep

water condensation to a minimum in storage tanks.

If diesel fuel which contains moisture is used, injection system and cylinder liners, pistons will

be damaged. Drain moisture and accumulated sediment from drainage device of storage tank

regularly. You’d better change the element of the water separator or fuel filter cartridge several

times until fuel of the suction line is cleaned.

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EA7O5009

Strainer(Inner)

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Daewoo ST Series Betriebsanleitung Seite 39