Abstract: Apparatus for evacuating water and dirt from a cooler box of a cooling system, incorporated with a blow-off for an air screen of the system. The water and dirt will flow through an aperture in a lower region of the cooler box into a smaller box of the apparatus disposed therebelow. A fan operable for generating the air flow through the air screen and the cooler box, also blows a portion of the flow through a blow-off channel to the air screen for blowing debris away from the air screen. The channel and smaller box are cooperatively configured such that the air flow through the channel will generate a partial vacuum condition in the smaller box operable for evacuating the water and the dirt into the channel so as to be carried away with debris from the air screen.

Abstract: The engine and cooling system arrangement includes an engine supported between the forward and rear ends of the frame of a harvesting machine, in an engine compartment. A cooler box containing at least one heat exchanger is disposed higher than and vertically offset from, the engine, and has an inlet opening facing sidewardly and covered with an air screen. A discharge opening faces in an opposite side direction. A fan generates a sideward air flow through the filter screen, cooler box and at least one heat exchanger, and outwardly through the discharge opening, away from an operator cab of the machine. A portion of the air flow will be directed into an air flow duct extending downwardly and forwardly to the engine compartment to create a positive air pressure condition therein, to limit infiltration of unfiltered air.

Abstract: Apparatus for evacuating water and dirt from a cooler box of a cooling system, incorporated with a blow-off for an air screen of the system. The water and dirt will flow through an aperture in a lower region of the cooler box into a smaller box of the apparatus disposed therebelow. A fan operable for generating the air flow through the air screen and the cooler box, also blows a portion of the flow through a blow-off channel to the air screen for blowing debris away from the air screen. The channel and smaller box are cooperatively configured such that the air flow through the channel will generate a partial vacuum condition in the smaller box operable for evacuating the water and the dirt into the channel so as to be carried away with debris from the air screen.