This manual covers the Komatsu PC350-7E0 and PC350LC-7E0 excavators, part of the Dash 7E0 Series. These machines are engineered for robust performance and reliability in demanding construction and earthmoving applications. Featuring a powerful Komatsu SAA6D114E-3 engine delivering 257 HP and 11.04 liters of displacement, they are designed to meet EPA Tier 3 and EU Stage IIIA emissions standards. The hydrostatic transmission and 2-speed travel motors ensure efficient power delivery and maneuverability. With substantial operating weights and impressive digging capabilities, including a maximum digging depth of 6.78 meters, these excavators are built to handle substantial workloads. The Full Service Repair Manual provides comprehensive guidance for maintaining and repairing your Komatsu excavator. It details essential procedures, technical specifications, and troubleshooting information to ensure optimal performance and longevity. Key areas covered include engine maintenance, hydraulic system servicing, and component-specific repair instructions. With an estimated 800+ pages of detailed information, this English-language manual is an indispensable resource for owners, operators, and technicians. It empowers users to perform routine maintenance, diagnose issues, and execute repairs effectively, keeping the PC350-7E0 and PC350LC-7E0 excavators operating at peak efficiency.