This service manual covers the New Holland MH2.6 and MH3.6 Excavator models. These excavators are engineered for robust performance and reliability in demanding operational environments. Key components and systems, including the superstructure, undercarriage, front attachment, hydraulic system, and electrical system, are designed to deliver efficient and powerful functionality. The manual details the F4BE0684K engine, a critical component for the operational capabilities of these machines. The purpose of this comprehensive 898-page manual is to provide detailed information for the maintenance, repair, and understanding of the New Holland MH2.6 and MH3.6 Excavators. It includes essential sections on main operating rules, safety precautions, features and data, troubleshooting procedures, and performance testing. This guide is an indispensable resource for owners, operators, and technicians seeking to ensure the optimal performance and longevity of their equipment through accurate maintenance and repair practices.