This manual covers the Komatsu WA900L-3 Wheel Loader, a robust piece of equipment designed for demanding operational environments. Known for its engineering quality and reliability, the WA900L-3 is built to deliver peak performance in various industrial and construction applications. This guide is essential for maximizing the efficiency and longevity of your machine. The purpose of this Operation & Maintenance Manual is to provide operators and maintenance personnel with the necessary information for the effective, economical, and safe operation and upkeep of the Komatsu WA900L-3 Wheel Loader. It includes comprehensive details on maintenance procedures, troubleshooting, technical specifications, safety guidelines, and operational instructions. With tons of pictures and diagrams, this manual aims to empower users to maintain and repair their equipment, ensuring optimal performance and safety.