This manual covers the Case IH 4210, 4220, 4230, and 4240 tractor series, produced by Case Company primarily during the 1990s. These tractors are known for their versatility and reliability, serving as robust utility machines for a wide range of agricultural tasks. Engineered with a focus on durability and efficient operation, the 4200 series tractors typically feature diesel engines in the 60-90 HP range, robust transmissions, and essential hydraulic systems designed to handle demanding fieldwork. Their design prioritizes practical functionality and operator comfort for extended use. The purpose of this Operator's Manual is to provide comprehensive guidance for the safe and effective operation, maintenance, and troubleshooting of your Case IH tractor. It details critical information regarding engine systems, transmission and drivetrain, hydraulic systems, electrical components, operator controls, and chassis. Within its 286 pages, you will find procedures for operation, routine maintenance schedules, adjustments, and practical solutions for common issues. This manual is an essential resource for owners and operators to ensure the longevity and optimal performance of their tractor.