This workshop repair manual covers the New Holland (CNH) NEF Series Engines, specifically Tier III models. These engines are known for their robust engineering and reliability, designed for a variety of demanding applications. The NEF series includes 6-cylinder configurations with engine codes such as F4CE, F4DE, F4GE, and F4HE, featuring advanced Common Rail fuel systems, both mechanical and electronic drive. Specific models covered include F4CE9684, F4DE9684, F4DE9687, F4GE9684, F4HE9684, and F4HE9687, all meeting Tier III emission standards.

This manual is intended for technicians and mechanics and provides comprehensive guidance for the repair and servicing of these engines. It details procedures for mechanical and electronic drive common rail systems, along with essential maintenance tasks such as fuel, oil, and air filter replacement. Information on engine oil viscosity, change intervals, and approved coolant types is also included, enabling efficient and accurate upkeep. By following the instructions within this manual, users can ensure the optimal performance and longevity of their NEF Series engines.

This workshop repair manual covers the New Holland (CNH) NEF Series Engines, specifically Tier III models. These engines are known for their robust engineering and reliability, designed for a variety of demanding applications. The NEF series includes 6-cylinder configurations with engine codes such as F4CE, F4DE, F4GE, and F4HE, featuring advanced Common Rail fuel systems, both mechanical and electronic drive. Specific models covered include F4CE9684, F4DE9684, F4DE9687, F4GE9684, F4HE9684, and F4HE9687, all meeting Tier III emission standards.

This manual is intended for technicians and mechanics and provides comprehensive guidance for the repair and servicing of these engines. It details procedures for mechanical and electronic drive common rail systems, along with essential maintenance tasks such as fuel, oil, and air filter replacement. Information on engine oil viscosity, change intervals, and approved coolant types is also included, enabling efficient and accurate upkeep. By following the instructions within this manual, users can ensure the optimal performance and longevity of their NEF Series engines.