This comprehensive service and repair manual provides detailed information and instructions for maintaining and repairing Komatsu hydraulic excavators, specifically the PC300-5, PC300LC-5, PC300-5 MIGHTY, PC300LC-5 MIGHTY, PC300HD-5, PC400-5, PC400LC-5, PC400 MIGHTY, PC400LC-5 MIGHTY, and PC400HD-5 models. The manual covers a...