After 2002 field trial evaluations, Case IH engineers say they have identified and remedied cooling system problems in new Axial-Flow 2300 series combines. Company spokesperson Claudia Garber states, "The rotary air screen was not performing to the expectations of our engineers and customers."

Apparently the small holes on the original wire cloth mesh screen were not providing as much airflow as expected. The company has replaced the mesh with a steel screen. Also, it replaced the cooling system plastic access door with a metal cover that collects less trash. Otherwise, the updated direct flow cooling system remains intact with unique features such as a composite rubber radial seal and two-brush screen wiper/trash block. Case IH maintains that the latest tweaks will allow its innovative cooling system to operate efficiently with fewer service intervals.