The Cub Cadet 123, produced from approximately 1963 to 1965, represents a robust and versatile tractor designed for lawn and garden applications. Part of the early generation of Cub Cadet tractors, this model embodies a heritage of durable agricultural and industrial equipment. Known for its solid construction, likely featuring a gasoline engine in the 10-15 HP range and a hydrostatic transmission, the Cub Cadet 123 was built with a design philosophy centered on durability and user serviceability. Its mechanical simplicity, devoid of modern electronic systems, emphasizes straightforward operation and maintenance. This comprehensive workshop service repair manual provides detailed technical information for the Tractor 123. Written by manufacturers and presented in English, it covers a wide array of systems including engine overhaul, transmission repair, fuel, cooling, ignition, braking, steering, hydraulic lift, PTO, and electrical components. The manual offers step-by-step repair instructions, diagnostic procedures, periodic maintenance charts, and specific torque values, making it an invaluable resource for professional technicians, DIY mechanics, and owners seeking to maintain and repair their tractor. Its digital format allows for easy searching, printing, and zooming, ensuring accessibility for all users.