The Deutz Fahr Agrotron M420 is a robust tractor known for its engineering and reliability, designed for demanding agricultural applications. As part of the esteemed Agrotron series, this model represents a mid-range offering from a manufacturer with a long heritage in agricultural machinery, dating back to 1872. While specific production years are not detailed, the Agrotron M series was primarily produced in the mid-2000s to early 2010s, typically featuring a 4-cylinder turbocharged diesel engine with an approximate displacement of 4.04 liters and horsepower ranging from 110-170 HP. The tractor is equipped with a powershift transmission and is built to meet rigorous European and International safety standards, making it a dependable choice for professional farming operations. This manual serves as a comprehensive resource for owners, mechanics, and agricultural workshops, providing essential information for maintaining and repairing the Deutz Fahr Agrotron M420. It includes detailed parts explosions, exploded views, and breakdowns of original part numbers to facilitate accurate part identification and ordering. The manual covers all major systems, including the engine, drivetrain, chassis, hydraulics, and electrical systems, offering detailed procedures for disassembly, servicing, rebuilding, and advanced troubleshooting. Additionally, it outlines routine maintenance schedules, fluid specifications, and diagnostic information, empowering users to keep their tractor in optimal working condition and save time and money compared to dealership services.