Doosan G20 SIIIA, Руководство по эксплуатации и техническому обслуживанию

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85 G20, 30, 40 SIIIA Operation & Maintenance Manual
LUBRICANT
The quality of engine oil can affect engine performance,
startability and engine life.
Use of unsuitable engine oil will result in piston ring,
piston and cylinder seizure and accelerate surface wear
causing increased oil consumption, lowered output and,
finally engine failure. To avoid this, use the specified
engine oil.
1) Engine Oil Selection
PRO-TEC
2) Oil Viscosity
Engine oil viscosity affects engine startability,
performance, oil consumption, wear and the potential
for seizure, etc. Always ensure that lubricants with
the correct viscosity for the operating temperature
are used. Refer to figure below.
NOTE: Using a mixture of different brands or quality
of oils will adversely affect the original oil
quality; therefore, never mix different brand or
different type oils.
Do not use API, CA, CB grade and
reconstituted engine oil.
Engine damage due to improper maintenance,
or using oil of the improper quality and/or
viscosity, is not covered by the warranty.
A. (Single - grade)
B. Ambient Temperature
C. (Multi - grade)