This comprehensive parts catalog manual is specifically designed for the Komatsu Mobile Cranes models 850, 850B, 850C, 870, 870B, and 870C, featuring the 614T/S6D114 engine. It serves as an essential resource for technicians, mechanics, and operators who require detailed information on the components and assemblies of these robust cranes. The manual is organized to facilitate easy navigation, allowing users to quickly locate the parts they need for maintenance, repair, or replacement. With the serial number range starting from U202002 and above, this catalog ensures compatibility with the specified models, making it a reliable reference for all service-related tasks.