This manual pertains to the WA80-5 Wheel Loader, identified by serial number prefixes H50051 and up. Designed for robust performance and reliability in various operational environments, this machine embodies a commitment to engineering excellence. Its intended usage spans a range of material handling tasks where efficient and dependable operation is paramount. This Operation & Maintenance Manual offers comprehensive guidance for the WA80-5 Wheel Loader. It covers essential aspects including operation, handling, lubrication, maintenance, checking, and adjustment procedures, all aimed at ensuring peak performance, effective, economical, and safe operation. The manual is structured with step-by-step instructions and features numerous pictures and diagrams to facilitate understanding for owners, mechanics, and technicians alike.