This manual covers the Komatsu WA320-1LC Wheel Loader, designed for demanding operational environments. Built with Komatsu's commitment to engineering excellence, this machine offers robust performance and reliability. Its advanced features are tailored for efficient material handling and productivity across various job sites. The purpose of this Operation & Maintenance Manual is to guide users in achieving peak performance through effective, economical, and safe machine operation and maintenance. It details procedures for operation, handling, lubrication, checking, and adjustment, supported by numerous pictures and diagrams. This comprehensive guide is essential for owners, mechanics, and technicians to properly maintain and repair the WA320-1LC Wheel Loader, ensuring its longevity and optimal functionality.