This comprehensive NUFField UNIVERSAL 3 & 4 Tractor Workshop Repair Manual provides detailed instructions and diagrams for servicing and repairing your tractor. It covers a wide range of topics, ensuring you have the information you need to tackle any repair job. The manual includes detailed information on the following engine types: * **2.55L OEC/2 & OEC/2B. CODES 25T/B/D & 25TA/B/D 3-CYLINDER DIESEL ENGINE** * **3.40L OEA/2D & OEA/2E. CODES 34T/B/D & 34TA/B/D 4-CYLINDER DIESEL ENGINE** * **3.77L 38T/V/T 4-CYLINDER SIDE-VALVE VAPORIZING OIL ENGINE** * **3.77L 38T/V 4-CYLINDER SIDE-VALVE PETROL ENGINE** The manual is organized into sections covering: * **General Information**: Provides essential information about your NUFField tractor, including specifications and safety guidelines. * **Service Tools**: Lists the specialized tools you may need for various repair tasks. * **Engine System**: Covers the engine in detail, including disassembly, reassembly, and troubleshooting. * **Ignition System**: Explains the workings of the ignition system, troubleshooting, and repair procedures. * **Cooling System**: Covers the cooling system, including radiator, water pump, and thermostat. * **Fuel System**: Details the fuel system from the tank to the injectors, including troubleshooting and repair procedures. * **Clutch System**: Explains the clutch system, covering disassembly, reassembly, and adjustment. * **Governor System**: Covers the governor system, including operation, troubleshooting, and repair. * **Transmission**: Provides comprehensive information on the transmission, including operation, adjustment, and repair. * **Steering Gear**: Detailed instructions on the steering gear, including troubleshooting and repair procedures. * **Front Axle**: Covers the front axle, including assembly, disassembly, and maintenance. * **Wheels & Tires**: Provides information on wheel and tire specifications, maintenance, and replacement. * **Brake System**: Explains the brake system, including hydraulics, adjustments, and repair. * **Electrical System**: Covers the electrical system, including wiring diagrams, troubleshooting, and repair. * **Drawbar System**: Details the drawbar system, including attachment, adjustment, and maintenance. * **Lubrication System**: Provides information on lubrication points and recommended lubricants. * **Optional Equipment**: Covers the installation and maintenance of optional equipment specific to your NUFField tractor. * **Implement Setting**: Provides guidance on setting up implements for optimal performance. This manual is an invaluable resource for both professional mechanics and DIY enthusiasts looking to save money on repairs. Its comprehensive information, detailed diagrams, and clear instructions make it an indispensable tool for anyone working on a NUFField UNIVERSAL 3 or 4 tractor.

The Nuffield Universal 3 & 4 series tractors were a popular line of agricultural machinery produced by the Nuffield organization in the United Kingdom from the early 1950s to the late 1960s. These tractors were known for their robust construction, reliability, and versatility, making them well-suited for a wide range of farming tasks. They were available in various configurations, with different engine options and power outputs, catering to a variety of needs. The Nuffield Universal 3 & 4 series tractors were powered by a range of diesel and petrol engines, including the 2.55L OEC/2 & OEC/2B, 3.40L OEA/2D & OEA/2E diesel engines, and the 3.77L 38T/V/T and 38T/V petrol and vaporizing oil engines. These engines were known for their durability and fuel efficiency, contributing to the tractors' overall reputation for reliability. The tractors also featured a variety of standard and optional features, such as hydraulics, power steering, and a rear PTO, making them adaptable to a wide range of implements and applications. While no longer in active production, the Nuffield Universal 3 & 4 series tractors remain a testament to British engineering and have earned a place in agricultural history.