This Service Repair Workshop Manual provides comprehensive information for the Hitachi Zaxis 240-3 class excavators, including models such as the Zaxis 240-3, Zaxis 240LC-3, Zaxis 250H-3, and others. Engineered for demanding operational environments, these machines represent a commitment to robust performance and reliability. This manual is designed to support the upkeep and operational efficiency of your Hitachi equipment. The purpose of this manual is to guide owners, independent service professionals, and authorized dealer technicians through the maintenance, servicing, diagnosis, and repair of the specified Hitachi excavators. It covers a wide array of topics, from general information and precautions to detailed procedures for the upper structure, undercarriage, front attachment, and engine accessory systems. With step-by-step instructions, troubleshooting guidance, wiring schematics, diagrams, and illustrations, this manual empowers users to perform necessary tasks, potentially saving significant costs and ensuring informed discussions with service personnel.