DX380LC-7
Inspection, Maintenance and Adjustment
4-6
Handling Oil, Fuel, DEF
(AdBlue
®
), Coolant
Oil
•
Oil is used in the engine and hydraulic equipment under
extremely severe conditions (high temperature,
high-pressure, etc.) and deteriorates with use. Always use
oil that matches the grade and maximum and minimum
ambient temperatures recommended in this manual. Even
if oil is not dirty, always change oil at specified interval.
•
Always be careful when handling oil to prevent any
impurities (water, metal particles, dirt, etc.) from getting in.
•
Operating problems with the machine can be caused by
impurities in oils.
•
Take particular care not to let any impurities get in when
storing or adding oil.
•
Never mix oils of different grades or brands.
•
Always add specified amount of oil.
•
Having too much or too little oil can cause operational
problems.
•
If oil in work equipment is not clear, there may be water or
air getting into circuit. In such cases, contact your
DOOSAN distributor.
•
When changing oil, always replace related filters at same
time.
Fuel
To ensure good fuel consumption characteristics and exhaust
gas characteristics, the engine mounted on this machine uses
an electronically controlled high-pressure fuel injection device.
This device uses high precision parts and lubrication. If low
viscosity fuel with reduced lubricating ability is used, the
durability of the fuel injection device could be affected.
•
To prevent moisture in air from condensing and forming
water inside fuel tank, always fill fuel tank after completing
day's work.
•
The fuel pump is a precision instrument and if fuel
containing water or dirt is used, it cannot work properly.
•
Be careful not to let impurities get in when storing or
adding fuel.
•
Always use fuel specified for temperature given in this
manual.
