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Cooling system D34A MS HE
The thermostat regulated freshwater system is cooling the lubrication oil coolers, the engine and the charge air
coolers. An engine driven cooling water pump circulates the coolant through the heat exchanger and through the
engine.
The rawwater system cools the internal cooling system via an engine mounted heat exchanger.
4.
5.
3.
1.
2.
Freshwater drain points (D)
D
D
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10.
7.
10.
7.
6.
Maintenance: Cooling system, general
8.
9.
9.
Freshwater circuit
Rawwater circuit
D
1. Rawwater inlet
2. Rawwater pump (optional)
3. Enginemounted
heat exchanger
4. Expansion tank
5. Rawwater outlet
6. Freshwater pump
7. Engine
8. Lubrication oil cooler
9. Charge air cooler
10. Thermostat valve
D
61
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