This manual covers the WA500-1L Wheel Loader, serial numbers A20854 and up. Designed for demanding operational environments, this machine exemplifies robust engineering and reliability. Its intended usage spans various heavy-duty applications where powerful and efficient performance is paramount. This Operation & Maintenance manual provides comprehensive information to ensure peak performance, effective, economical, and safe operation and maintenance. The purpose of this manual is to guide owners, mechanics, and technicians through the operation, handling, lubrication, maintenance, checking, and adjustment procedures for the WA500-1L. It offers step-by-step instructions, supported by numerous pictures and diagrams, to facilitate easy understanding and execution of tasks. By following the guidelines within this manual, users can maintain the machine at optimal levels, potentially saving money on repairs, and ensuring safe and efficient operation. The manual is presented in English.