This shop manual provides comprehensive service and repair instructions for the Komatsu PC160-6K, PC180LC, and PC180NLC-6K excavators. It includes detailed procedures for diagnosing, troubleshooting, and repairing major components such as the engine, hydraulic system, transmission, undercarriage, and electrical systems. The manual offers step-by-step guidance on disassembly, inspection, reassembly, and adjustments of various parts. Additionally, it covers maintenance schedules, technical specifications, and safety protocols. This document is essential for mechanics and technicians to ensure proper maintenance, efficient repairs, and optimal performance of the Komatsu PC160-6K, PC180LC, and PC180NLC-6K excavators.