The Massey Ferguson MF 8600 Series tractors, encompassing models MF 8650, MF 8660, MF 8670, MF 8680, and MF 8690, represent a significant advancement in high-horsepower agricultural machinery. These tractors, produced likely from the mid-2000s into the early 2010s, are powered by AGCO Power engines and feature AGCO Dynam a Continuously Variable Transmissions (CVT), offering multiple operational modes for optimized performance and fuel efficiency. Designed to meet Tier 3 emission standards, they compete with other leading manufacturers in their segment, offering advanced cab features, operator interface enhancements, and compatibility with GPS auto-steering systems. Their robust engineering and advanced technology make them powerful tools for demanding agricultural operations, with operating weights typically ranging from 18,000 to 25,000 lbs. This workshop repair service manual provides comprehensive coverage for the Massey Ferguson MF 8600 Series tractors. It is designed for professional technicians and owners seeking to maintain, service, and repair these advanced machines. The manual details procedures for engine, gearbox, rear axle, front axle, hydraulics, electrical systems, and the tractor cab, among others. It includes routine maintenance schedules, fluid specifications, systematic troubleshooting guides, step-by-step repair instructions, and detailed wiring diagrams. With hundreds of pages of technical information, illustrations, and critical specifications, this manual is an essential resource for ensuring the optimal performance, reliability, and longevity of your MF 8600 Series tractor, enabling significant savings on repair and maintenance.