The David Brown 1594 is a robust agricultural tractor, likely produced in the late 1970s through the 1980s. Renowned for its reliable performance and durable construction, this model represents a significant part of David Brown's legacy in agricultural machinery. It typically features a diesel engine with an estimated horsepower range of 70-95 HP and a synchronized gearbox with multiple forward and reverse gears, designed for demanding farm work. The 1594 is built to be a dependable workhorse, offering straightforward mechanical operation and a solid build that has contributed to its longevity and continued utility for enthusiasts and operators alike. This comprehensive service repair manual provides detailed information for the full service, repair, maintenance, rebuild, refurbishment, and restoration of the David Brown 1594. It covers all essential systems, including the engine, transmission, drivetrain, hydraulics, steering, brakes, and electrical systems, offering in-depth procedures, diagnostic guidance, and troubleshooting steps. With detailed illustrations and clear instructions, this manual is an invaluable resource for professional technicians, mechanics, agricultural engineers, and owners seeking to maintain or repair their vehicle. It emphasizes safety with critical notes, cautions, and warnings throughout its extensive coverage.