This document pertains to the CLASS excavator, a robust piece of equipment designed for demanding construction and earthmoving applications. Representing the generation, this excavator series includes models such as the 200-3, 210H-3, 210K-3, 210LCN-3, and 240N-3. Engineered for reliability and performance, these machines are built to handle a variety of tasks with efficiency and power, featuring a hydrostatic transmission for precise control and a diesel engine for dependable operation. This comprehensive Service Repair Workshop Manual provides essential information for the maintenance, repair, and troubleshooting of your excavator. It covers a wide range of topics, including detailed step-by-step instructions, diagrams, illustrations, and wiring schematics for all major components such as the upperstructure, undercarriage, front attachment, and engine. This manual is an invaluable resource for mechanics, owners with mechanical aptitude, and independent technicians aiming to ensure the optimal performance and longevity of their equipment through accurate service and repair procedures.