This document provides comprehensive installation instructions for the lubrication systems of the Komatsu PC210-11, PC240-11, PC290-11, PC360-11, PC390-11, and PC490-11 excavators. It includes detailed guidance on setting up lubrication components, such as pumps, filters, and lines. The manual provides step-by-step procedures, technical specifications, and diagrams to ensure correct installation and optimal performance of the lubrication systems. Additionally, it includes instructions for checking and adjusting the system to meet operational requirements and safety standards. This guide is essential for service technicians to ensure proper lubrication and maintenance of the excavators.