The David Brown 1690 is a robust agricultural tractor, representing a significant offering from the historically recognized British manufacturer, David Brown Tractors Ltd. Likely produced between the late 1970s and mid-1980s, this model embodies the era's focus on durable engineering and reliable performance for demanding farm work. While specific production years are not detailed, the 1690 is understood to be a mid-range tractor, built to handle a variety of agricultural tasks with its likely 70-80 horsepower diesel engine. Its design emphasizes mechanical functionality and straightforward operation, reflecting a commitment to practicality and longevity in its intended application. This comprehensive factory service repair manual provides essential information for the maintenance, servicing, and repair of the David Brown 1690 tractor. It covers a wide array of systems, including the engine, drivetrain, hydraulics, electrical systems, brakes, and steering. Detailed procedures for scheduled maintenance, component overhaul, troubleshooting common faults, and system diagnostics are included. The manual is designed to assist owners, service technicians, and agricultural mechanics in performing repairs efficiently, ensuring the continued operational integrity and maximizing the lifespan of the tractor.