This manual covers the International Harvester (IH) / Case IH 784 Tractor, a utility tractor produced in the late 1970s and early 1980s. Known for its robust engineering and reliability, the 784 represents a significant offering from the agricultural machinery legacy of International Harvester, later integrated into Case IH. This tractor was designed for a variety of agricultural tasks, embodying the practical functionality and durability characteristic of its era. Its design emphasizes operator awareness and efficient operation, making it a dependable workhorse for farming and related applications. The purpose of this manual is to provide comprehensive guidance for the operation, maintenance, and basic troubleshooting of the IH International Case 784 Tractor. It details essential information across numerous systems, including the engine and fuel system, cooling system, air cleaning, electrical system, hydraulic controls, three-point hitch, and drivetrain. The manual outlines operating procedures, preventive maintenance schedules, lubrication requirements, and engine break-in instructions. It also includes guidance on storage and cold-weather precautions, as well as information on attachments and accessories. While focusing on operator-level maintenance and adjustments, it offers basic troubleshooting assistance and technical specifications to ensure the continued performance and longevity of the tractor.