This manual covers the Komatsu WA380-6H Wheel Loader, serial number SN H60051 AND UP. Designed for heavy equipment applications, this vehicle is engineered for reliability and performance. Its robust construction and advanced features ensure efficient operation in demanding environments. The WA380-6H is built to handle a variety of tasks, emphasizing quality in its diesel engine and 4-wheel drive system. This Operation & Maintenance Manual provides comprehensive guidance for the Komatsu WA380-6H. It details procedures for driving, handling, lubrication, maintenance, inspection, and adjustment. The manual includes detailed substeps, notes, cautions, warnings, and illustrations to assist owners and technicians in performing all aspects of repair and upkeep. Adhering to the instructions within this document will help ensure the longevity and optimal performance of your equipment.