This document is a service manual copyrighted by MJFCIFSS that provides an overview and technical data for maintenance and repair of the basic machine and its subsystems, including the drive group, cooling system, working hydraulics, electrical system, travel gearbox, and lubrication system. It contains sections on maintenance, components, and instructions for the steel parts, working attachment, operator's cab, and slewing gearbox. The document encourages downloading the full manual for more complete repair information.