Doosan AD158TI, Руководство по эксплуатации и техническому обслуживанию

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General information - 43 -
If the air compressor should be badly fouled, it is recommended that the wheel be allowed to soak in a vessel
with solvent and to clean it then with a stiff non-steel brush. In doing so, take care to see that only the com-
pressor wheel is immersed and that the turbocharger is supported on the bearing casing and not on the
wheel.
4.5.4. Exhaust gas checking
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 con-
tamination of fuel causes the clogging of the nozzle or the sticking of the components of injection pump.
Therefore, the cleanness of the fuel system should be maintained all the 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 cleaning & checking
Fill the tank with recommended fuel. Keeping tanks full reduces water condensation and helps keep fuel
cool, which is important to engine performance. Make sure fuel supply valves (if used) are opened. 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 content 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 should
change the element of the water separator or fuel filter cartridge several times until fuel of the suction line is
cleaned.
EDV15200002
Strainer