ENGINE COMPONENT AND LOCATION 109
Air Intake System
Fresh air enters the intake above the back of the cab. Plastic duct work leads the air to
the filter assembly mounted on the bulkhead under the hood. An impregnated paper
filter prevents foreign particles from passing through. The assembly design permits
the addition of a second filter if needed in extreme environments.
A combination pressure/temperature sensor mounted on the pipe between the filter
housing and the turbocharger alerts the driver if the filters need replacement prior
to the schedule service. The brake system air compressor also draws fresh, clean
air from this same page.
Variable Geometry Turbocharger
W2033362
The engine is equipped with a variable geometry turbocharger. The turbine housing
has a set of vanes and a sliding nozzle ring that maintains sufficient back pressure in
the exhaust manifold for proper operation of the EGR system. A certain amount of
back pressure is required to push the exhaust gases into the pressurized intake air
at the EGR mixer.
Summary of Contents for EPA2007 D13F
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Page 35: ...SPECIFICATIONS 29 Bearing Cap Camshaft Rocker Arm Shaft T2022796 ...
Page 101: ...ENGINE COMPONENT AND LOCATION 95 Fuel System W2033327 ...
Page 134: ...128 ENGINE COMPONENT AND LOCATION Rear Engine Components W2032470 ...
Page 136: ...130 ENGINE COMPONENT AND LOCATION Oil Pan and Stiffing Frame W2032451 ...
Page 138: ...132 ENGINE COMPONENT AND LOCATION Lower Engine Components W2032471 ...
Page 140: ...134 ENGINE COMPONENT AND LOCATION Replacement Kits Engine Replacement Kits W2032452 ...