Doosan P185WDOU-T4F (F89), Operation And Maintenance Manual

Page: 113 / 196

Engine Operation
Replacement of Coolant
Never open the reservoir cap while the engine is overheated. If the
reservoir cap is opened while the engine is overheated, hot water will
spurt out and may cause serious burns. Open the reservoir cap after
ensuring that the engine has been cooled sufficiently.
Mark and separately manage the containers for storing coolant from
beverage containers to avoid confusion. If coolant is ingested, see a
doctor immediately.
Discard exchanged coolant to the regulations set forth by the relevant
authorities. Disposing of exchanged coolant into the ground, sewers,
drains, rivers or the sea will cause serious environmental pollution.
Violation of regulations regarding discard of coolant without observing
the handling regulations may result in legal action.
Be careful not to get coolant on any belts or electric apparatus when
replacing the coolant.
Do not mix antifreezes from different manufacturers.
Do not mix the coolant with different concentrations.
Do not add antirust which is not recommended by us.
As insufficient coolant concentration may cause corrosion or freezing.
However, an excessive concentration may degrade the cooling
performance. Mix coolant with 40% antifreeze and 3~5% additives
(DCA4) to prevent corrosion.
113