This workshop manual covers the SAME IRON series tractors, specifically models IRON 100, IRON 110, and IRON 120. These robust machines are powered by SAME Diesel engines, featuring a common rail injection system and liquid cooling. The IRON 100 offers 90 HP from its 3.8L engine, while the IRON 110 and IRON 120 utilize 4.0L engines producing 102 HP and 113 HP respectively. All models are equipped with a 20 Forward + 20 Reverse Mechanical Synchromesh transmission, hydraulically actuated clutch, and 4WD capability, making them versatile for a wide range of agricultural and industrial applications. This comprehensive manual provides detailed information essential for the maintenance and repair of your SAME IRON tractor. It includes in-depth procedures for routine servicing, such as engine oil changes with a typical interval of 250 hours and capacities for engine oil, coolant, and hydraulic fluid. Technical specifications, troubleshooting guides, and safety recommendations are also covered, ensuring that owners, mechanics, and technicians have the necessary resources to keep these powerful machines operating efficiently and reliably.