This Operation & Maintenance Manual provides comprehensive guidance for the Komatsu WA380-5L Wheel Loader, serial number A52001 and up. Engineered for heavy equipment applications, this machine is designed for optimal performance in demanding operational environments. The manual highlights the importance of effective, economical, and safe machine operation and maintenance to realize peak performance. It is presented in English and includes a wealth of pictures and diagrams to aid understanding. The purpose of this manual is to serve as a definitive resource for owners, mechanics, and technicians. It covers essential areas including safety, operation, maintenance, specifications, and options/attachments. By following the procedures and information contained within, users can ensure the proper handling, lubrication, maintenance, checking, and adjustment of their Komatsu WA380-5L Wheel Loader, thereby extending its service life and maintaining operational efficiency.