The Big Ten and Big-10 tractors represent a line of robust utility machines from a manufacturer renowned for its durable agricultural and construction equipment. While specific production years are not detailed, these tractors were typically produced in the mid to late 20th century and are known for their versatility in various agricultural and property maintenance tasks. The engineering quality and reliability inherent in machinery ensure these tractors remain valuable assets for owners and operators. This comprehensive manual serves as an essential resource for owners, operators, maintenance technicians, and enthusiasts of the Big Ten/Big-10 tractor and its numerous attachments. It includes both a Service Repair Manual (224 pages) and a Parts Catalog (76 pages), offering factory-level expertise and complete coverage. The manual details major systems including the engine, steering, drivetrain, brakes, clutch, and hydrostatic drive, along with routine maintenance, adjustments, engine overhaul, and extensive troubleshooting guides for both engine and hydrostatic systems. It also covers the installation and maintenance of a wide array of factory attachments, providing detailed diagrams, exploded views, and manufacturer specifications for accurate repair and upkeep.