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| Illustration 1 | g06244006 |
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(1) Fan motor
(2) Shunt tank (3) Clean emissions module (CEM) (4) Power train oil pump (5) Diesel exhaust fluid (DEF) tank (6) Diesel exhaust fluid (DEF) pump (7) Inverter (8) Motor group (9) Generator group (10) Power train oil cooler (11) Hydraulic oil cooler (left frame rail) (12) Separate circuit water pump (left side of engine) (13) Engine water pump (right side of engine) (14) Separate circuit radiator (15) Engine radiator (16) Aftercooler (ATAAC) | |
The cooling system on the D6 tractor consists of five integrated cooling systems that each serve a particular function. The five systems are listed below:
- C9.3 engine
- Separate Circuit system
- Aftercooler (ATAAC)
- Hydraulic system
- Power train system
The first two systems listed, use coolant from the radiator cores to remove heat from the components in the system.
The ATAAC system uses heat transfer through one of the cores of the radiator but the transfer of heat is from the air inside the radiator core to the air outside of the radiator core.
The last two systems listed use coolant from the radiator cores to remove heat from the hydraulic oil and power train oil. The power train oil is used to cool and lubricate the components of each system.
Fan motor (1) is driven by the fan pump. The fan pump is controlled by the engine ECM. The engine ECM monitors input from the following four sensors:
- Engine coolant temperature sensor
- Separate circuit coolant temperature sensor
- Hydraulic oil temperature sensor
- Inlet manifold air temperature sensor