This manual covers Case International (formerly David Brown) models 1190, 1194, 1290, 1294, and 1390 tractors. These tractors, primarily manufactured in the UK during the late 1970s and 1980s, represent a legacy of robust and reliable British agricultural machinery. Evolving from earlier David Brown designs, these models typically feature naturally aspirated, four-stroke, direct-injection diesel engines, often Perkins variants, coupled with manual transmissions and integrated hydraulic systems. Known for their solid construction and advanced features for their time, these tractors were designed for demanding agricultural work. This comprehensive Service Repair Workshop Manual provides complete factory service, repair, and workshop procedures for the specified Case International tractor models. It details engine overhaul, fuel system maintenance, transmission and hydraulic system repair, axle servicing, brake maintenance, steering system service, and electrical system diagnostics. The manual includes routine maintenance schedules, fluid specifications, troubleshooting charts, torque specifications, and detailed diagrams with step-by-step instructions, making it an essential resource for farm owners, mechanics, technicians, and enthusiasts seeking to maintain and repair these durable machines.