This workshop repair service manual covers the Hitachi Zaxis series excavators, including models 200, 230, and 270. These excavators are engineered for robust performance and reliability across a wide range of construction and earthmoving applications. The Zaxis line is known for its advanced hydraulic systems, efficient power delivery, and durable construction, making it a trusted choice for demanding operational environments. This manual provides comprehensive details on the various engine and transmission options available for these models, along with their specific dimensions and operating weights. The purpose of this manual is to provide detailed technical information for the maintenance, diagnosis, and repair of your Hitachi Zaxis excavator. It includes extensive coverage of all major systems, such as the hydraulic, electrical, cooling, fuel, and braking systems. Furthermore, it details procedures for servicing the drive train components, including front and rear axles and drive chain sprockets. With hundreds of pages of information, this English-language manual is designed to assist owners, mechanics, and technicians in keeping their equipment in optimal working condition through clear instructions and specifications.