The David Brown 1690 Tractor represents a significant offering from a manufacturer with a respected legacy in producing robust and reliable agricultural machinery. Produced in the late 1970s and early 1980s, this tractor was designed to provide substantial power and torque for heavy draft work, characteristic of David Brown's commitment to engineering quality. Its design aimed for durability and performance, making it a capable machine for various agricultural tasks. This workshop service manual is intended to support the continued operation and maintenance of this powerful tractor. This comprehensive workshop service manual provides detailed guidance for the maintenance and repair of the David Brown 1690 Tractor. It covers a wide array of critical systems, including the engine, transmission, hydraulics, electrical system, brakes, steering, cooling, fuel, chassis, operator station, power take-off, and hitch control. The manual offers step-by-step procedures for general repair, routine maintenance, component removal and installation, disassembly and assembly, adjustments, and troubleshooting. It is an essential resource for mechanics and DIY enthusiasts seeking to ensure the optimal performance and longevity of their David Brown 1690 Tractor.