DL06K Interim Tire-4 Diesel Engine Technical Information
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2.2.23. Cooling water
z The clean tap water should be used as engine cooling water.
z Mix 40% of antifreeze with engine cooling water, and use 3 ~ 5% additive (DCA4)
for corrosion prevention.
z To keep proper viscosity of antifreeze and additive, check cooling water every 500
hours.
CAUTION :
If you keep antifreeze and anticorrosive agent properly, you can prevent
engine corrosion effectively and keep the engine quality stably. On the
contrary, if you manage them inappropriately, the cooling water pump and
cylinder liner can be damaged fatally.
z DL06K engine's cylinder liner is a dry type. In particular, cooling water flow should
be good.
z Viscosity of antifreeze and anticorrosive agent can be check with cooling water
check paper. (Fleet card number: CC2602M or Doosan number: 60.99901-0038)
z Cooling water concentration measurement method
(1) When cooling water temperature is between 10 and 55 °C, drain cooling water
and fill the plastic cup by half.
CAUTION :
If you collect test cooling water from the auxiliary fuel tank, you cannot
measure viscosity accurately. Makes sure to collect test cooling water by
opening the cooling water drainage plug.
(2) Soak the test paper into the collected cooling water and take out after 3 - 5
seconds. Then, shake the test paper to shake out the water.
(3) Wait 45 seconds until the color of the test paper changes.
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