Charging The Coolant - Doosan DP158L Series Operation & Maintenance Manual

4. Regular inspection
1. Make sure that engine and radiator are cooled.
2. Open the radiator cap.
DANGER
• Never open the radiator cap while the engine is
overheated. If the radiator cap is opened while the
engine is overheated, hot water will spurt out and
may cause serious burns. Open the radiator cap
after ensuring that the engine has been cooled suffi-
ciently.
• Mark and separately manage the containers for
storing coolant from beverage containers to avoid
confusion. If coolant is ingested, see a doctor imme-
diately.
3. Loosen the drain valve which is located under the radi-
ator to discharge the coolant.
Drain valve
4. Disassemble the coolant discharge plug of the cylinder
block, and discharge it to a container.
5. Drain cooling water in the oil cooler.
A
1) Loosen the drain plug(A) of the oil cooler cover and then
drain cooling water.

Charging the Coolant

1. Make sure that engine is coolant.
2. Open the radiator cap.
• Never open the radiator cap while the engine is
overheated. If the radiator cap is opened while the
engine is overheated, hot water will spurt out and
may cause serious burns. Open the radiator cap
after ensuring that the engine has been cooled suffi-
ciently.
• Mark and separately manage the containers for
DV2213011A_E
storing coolant from beverage containers to avoid
confusion. If coolant is ingested, see a doctor imme-
diately.
3. Put in the coolant slowly.
Be careful not to let foreign substances flow into the
engine when replenishing coolant.
4. Be sure that the air is gone out from cooling system.
DV2213012A
46
DV2213167A
DANGER
CAUTION