Baudouin 12M26 Series, Operation And Maintenance Manual

Page: 23 / 83

O&M Manual for PowerKit M26 Series Diesel Engine
23
2.4.2 Cooling Circuits for 12M26 Series Diesel Engine Overall Layout
Figure 2.4.2-Overall Layout of cooling circuits
12M26 series diesel engine is equipped with 2 cooling circuits.
a) High temperature cooling circuit to cool:

Cylinder block and cylinder head

Exhaust manifold and turbocharger

Engine oil through oil cooler
The internal circuit is designed for self-degassing.
To provide effective engine protection against freezing, chemical and galvanic corrosion,
cavitation and depositing, it is IMPERATIVE to use the recommended coolant as defined
in the 6.1 Coolant Recommendation . The high temperature coolant pump is located at
the engine’s front side (See item 3 of the above picture).
b) Low temperature cooling circuit:
The low temperature cooling circuit cools the charged air.
1 -Radiator
2-Fan
3-WaterPump
4-Drain Valve
5-Oil Cooler
6-Cylinder Block Cooling
7-Cylinder Head Cooling
8-Water Outlet Pipe
-Thermostat Assembly 9
10-Low Temp. Circuits
11-High Temp. Circuits