This manual covers the Hitachi Hydraulic Excavator Zaxis 240-3, a robust and reliable machine designed for demanding construction and earthmoving applications. Engineered for superior performance and durability, the Zaxis 240-3 combines advanced hydraulic technology with a powerful engine to deliver exceptional efficiency and productivity on any job site. Its thoughtful design ensures operator comfort and ease of use, making it a preferred choice for professionals seeking a dependable and high-performing excavator. The purpose of this comprehensive service manual is to provide detailed information for the maintenance, repair, and troubleshooting of the Hitachi Hydraulic Excavator Zaxis 240-3. It includes essential technical specifications, step-by-step repair procedures, diagnostic guides, and safety precautions. This manual serves as an indispensable resource for owners, technicians, and mechanics, enabling them to keep the Zaxis 240-3 operating at peak performance and ensuring its longevity.