The David Brown 1494, 1594, and 1690 tractors represent a line of robust agricultural machinery produced in the United Kingdom during the late 1970s and 1980s. Known for their solid construction and enduring reliability, these diesel-powered tractors were engineered for demanding farm work. Their design emphasizes practicality and durability, making them a trusted choice for independent service professionals, farm mechanics, and knowledgeable owners. These models typically feature manual transmissions and robust power take-off systems, embodying the heritage of David Brown's commitment to producing dependable agricultural equipment. This comprehensive Service Repair Workshop Manual provides essential information for the maintenance, repair, and troubleshooting of David Brown 1494, 1594, and 1690 tractors. It covers all major systems, including the engine, transmission, drivetrain, hydraulic system, electrical components, brakes, and steering. Detailed step-by-step repair procedures, diagnostic guides, and technical specifications are included to assist users in performing routine servicing, component overhauls, and complex repairs. The manual is designed to empower owners and technicians, enabling them to maintain optimal performance and longevity of their tractors, mirroring the information found in official dealer resources.