TM 5-3805-248-23-1
THEORY OF OPERATION - CONTINUED
0003 00
EXHAUST SYSTEM
0003 00
The exhaust system consists of a muffler and exhaust pipe that reduces noise and direct gases away from the operator.
COOLING SYSTEM
0003 00
1.
Radiator. A liquid-to-air radiator operates as part of a closed, pressurized cooling system. It is mounted immediately in
front of the engine and protected by structural steel and grill work, allowing cooling air circulation.
2.
Water Pump. Cooling liquid is circulated by the gear-driven water pump mounted on the front of the engine.
3.
Coolant Filter. A spin-on coolant filter is mounted on the front-left side of the engine. As coolant circulates through this
element, the corrosion inhibitor mixes in to protect the system and engine.
4.
Aftercooler. An aftercooler (air-to-liquid), installed in place of an inlet manifold, lowers the temperature of the inlet air
coming from the compressor outlet of the turbocharger to approximately 200oF (93oC). Coolant from the aftercooler
comes from the front bonnet on the oil cooler.
5.
Transmission Oil Cooler. Provides additional stabilization of oil temperature in the transmission. Cooler (liquid-to-liq-
uid) is mounted on the right side of engine, dissipating heat through the engine cooling system.
6.
Fan. The fan assembly is mounted on the front of the engine. Fan is double V-belt driven.
7.
Thermostat. A water thermostat, mounted on the front of cylinder head, stabilizes engine operating temperature, open-
ing when hot, 197oF (92oC) and closing when cool.
AFTERCOOLER
THERMOSTAT
COOLANT
FAN
FILTER
RADIATOR
TRANSMISSION
OIL COOLER
WATER PUMP
0003 00-3
