This factory service repair manual provides comprehensive information for the Massey Ferguson MF3690 Tractor. Massey Ferguson has a long-standing heritage in agricultural machinery, and the MF3690 is part of this lineage, known for its robust utility. This manual is designed to cover all aspects of the tractor, from routine maintenance to complete overhauls, ensuring the longevity and optimal performance of your equipment. The purpose of this manual is to serve as an authoritative resource for owners, operators, and technicians. It details maintenance procedures, troubleshooting guides, technical specifications, and repair instructions for all major systems, including the engine, cooling system, fuel system, powertrain, brakes, hydraulics, and electrical systems. With step-by-step instructions, diagrams, and illustrations, this manual empowers users to perform servicing independently, potentially saving on labor costs and ensuring the tractor remains in peak operating condition.