This comprehensive NUFField UNIVERSAL 3 & 4 Series Tractor Workshop Repair Service Manual is an essential resource for anyone seeking detailed information on maintaining and repairing these popular tractors. It covers a wide range of engine types, including the 2.55L OEC/2 & OEC/2B (Codes 25T/B/D & 25TA/B/D), the 3.40L OEA/2D & OEA/2E (Codes 34T/B/D & 34TA/B/D), the 3.77L 38T/V/T 4-cylinder side-valve vaporizing oil engine, and the 3.77L 38T/V 4-cylinder side-valve petrol engine. The manual provides step-by-step instructions and illustrations for a vast array of procedures, starting with general information and service tools, and moving through engine systems, ignition systems, cooling systems, fuel systems, clutch systems, governor systems, transmissions, steering gears, front axles, wheels and tires, brake systems, electrical systems, drawbar systems, lubrication systems, optional equipment, and implement settings. With its detailed exploded views and comprehensive explanations, this manual is the same resource used by professional technicians to service NUFField UNIVERSAL 3 & 4 Series Tractors.

The Nuffield Universal 3 & 4 Series tractors were a range of versatile and reliable workhorses produced by Nuffield Mechanizations, a subsidiary of the Morris Motors Group, in the United Kingdom from 1948 to 1964. These tractors were known for their robust construction, powerful engines, and user-friendly design, making them popular choices for farmers and agricultural businesses throughout the world. The series encompassed a variety of models, each tailored to different power requirements and applications. The Universal 3 series, introduced in 1948, featured models like the 3/45, 3/60, and 3/65, characterized by their 3-cylinder diesel engines ranging in power from 45 to 65 horsepower. The Universal 4 series, introduced in 1953, expanded on the design with models like the 4/60, 4/66, and 4/75, featuring 4-cylinder diesel engines delivering 60 to 75 horsepower. These tractors offered efficient and reliable performance in a range of tasks, from plowing and planting to harvesting and transportation. Both the Universal 3 and 4 series tractors were designed with a focus on operator comfort and ease of maintenance. They featured a spacious cab with a comfortable seat, providing the operator with a clear view of their surroundings. The tractors were equipped with a variety of features, including power steering, hydraulic lift systems, and optional PTO options, enhancing their versatility and productivity. Nuffield tractors were known for their high levels of serviceability, with easily accessible components and a straightforward design that made maintenance and repairs relatively simple. The Nuffield Universal 3 & 4 Series tractors played a significant role in the advancement of agricultural mechanization, offering farmers a reliable and powerful tool for their operations. These tractors remain a popular choice for enthusiasts and collectors, and their legacy of durability and performance continues to be appreciated today.