This Workshop Service Manual provides comprehensive repair and maintenance information for the International Harvester (IH) Cub Cadet Tractor models 154, 184, and 185, produced primarily in the late 1960s and early 1970s. These tractors, built upon the renowned heritage of International Harvester, represent a robust mid-size series within the Cub Cadet lineup, designed for a variety of utility tasks. Their engineering emphasizes reliability and durability, characteristic of IH equipment. This manual serves as an essential resource, offering professional-grade data to ensure these dependable machines continue to perform optimally. The purpose of this manual is to equip professional technicians and DIY mechanics with the detailed knowledge required for the upkeep and repair of these specific Cub Cadet models. It covers a wide array of critical systems, including engine, transmission, drivetrain, hydraulics, electrical systems, steering, brakes, cooling, fuel, and chassis. Within its pages, you will find step-by-step instructions for maintenance, diagnostics, repair, and overhaul procedures, along with essential technical specifications and wiring diagrams. This comprehensive English-language guide is designed for immediate access, enabling users to confidently undertake tasks ranging from routine servicing to major component overhauls.