This manual covers the Kato HD820III Super Exceed, a fully hydraulic excavator designed for demanding operational environments. While specific production years are not detailed, this model represents robust engineering focused on reliability and performance in construction and heavy-duty applications. Its fully hydraulic transmission system is a key component, contributing to its operational efficiency and power delivery. This comprehensive Service & Repair Workshop Manual, provided in English, offers extensive guidance for maintaining and repairing the Kato HD820III Super Exceed. It includes detailed, step-by-step instructions, hundreds of exploded diagrams, and numerous photos to illustrate all repairs, servicing procedures, and troubleshooting steps. The manual covers critical areas such as detailed service schedules, fluid capacities for oil, hydraulic fluid, and coolant, ensuring that owners and technicians have the necessary information to keep the excavator in optimal working condition.