The Deutz-Allis 6200 series tractors, including the 6240, 6250, 6260, 6265, and 6275 models, represent a robust line of agricultural machinery produced primarily in the late 1980s and early 1990s. These tractors, often powered by reliable Deutz diesel engines known for their durability and efficiency, were designed for a variety of farm tasks. They feature sturdy construction, with typical operating weights ranging from 4,000 to 6,000 lbs, and offer significant drawbar pull capacity for demanding fieldwork. Key engineering aspects include their synchromesh or constant mesh transmissions, standard PTO capabilities, and effective braking systems, ensuring dependable performance in agricultural environments. This comprehensive repair service manual is designed to assist farm owners, mechanics, and service technicians in maintaining and repairing the Deutz-Allis 6240, 6250, 6260, 6265, and 6275 tractors. It covers all essential systems, including detailed procedures for engine overhaul, transmission servicing, hydraulic system repairs, and electrical diagnostics. The manual provides step-by-step instructions for routine maintenance, troubleshooting common issues, and complete component rebuilds, supported by comprehensive wiring diagrams and technical specifications. Its purpose is to ensure the longevity and optimal performance of these tractors, offering valuable guidance for efficient and cost-effective service.