This manual covers Yanmar industrial diesel engines, including models 2TNE68, 3TNE68, 3TNE74, 3TNE78A, 3TNE82A, 3TNE82, 3TNE84, 3TNE88, 4TNE82, 4TNE84, 4TNE88, 3TNE84T, and 4TNE84T. These engines are designed for robust performance in industrial applications, featuring liquid-cooled systems and electric starters. Engine specifications such as displacement, horsepower, torque, operating speed, number of cylinders, and aspiration vary by specific model, offering a range of power options from 0.68 L to 1.66 L displacement and naturally aspirated or turbocharged configurations.

This comprehensive workshop service repair manual in English provides essential information for the maintenance and repair of these Yanmar diesel engines. It details critical procedures for lubrication, filter replacement, and other maintenance tasks, referencing specific schedules for optimal upkeep. The manual also includes technical specifications and troubleshooting guidance, empowering owners, mechanics, and technicians to ensure the continued reliability and optimal performance of their industrial diesel engines.