The Komatsu Galeo PC800-8 is a robust excavator designed for demanding work environments. Powered by a Komatsu SAA6D140E-5 turbocharged diesel engine, it delivers substantial power with a gross output of 391 kW (524 HP). Its hydrostatic transmission offers variable speed control across two travel ranges, complementing its impressive operating weight of approximately 76,100 kg. Engineered for reliability and performance, this excavator is a capable machine for heavy-duty construction and earthmoving applications. This Service Manual and Field Assembly Instruction provides comprehensive guidance for the Komatsu Galeo PC800-8. It covers essential maintenance procedures, troubleshooting steps, detailed technical specifications, and critical safety information. This manual is an indispensable resource for owners, mechanics, and technicians, enabling them to effectively maintain, service, and repair the equipment, ensuring optimal performance and longevity.