This Service Shop Repair Manual covers the Komatsu WA380-1LC Wheel Loader, serial numbers A45001 and up. Engineered for demanding operational environments, the WA380-1LC is recognized for its robust construction and reliable performance in various material handling applications. Its design prioritizes efficiency and durability, making it a dependable choice for construction, mining, and industrial sectors. This comprehensive manual provides detailed information essential for the maintenance, repair, and servicing of your Komatsu WA380-1LC. It includes extensive sections on engine, power train, steering, brake and air systems, work equipment, and electrical/electronic systems. With step-by-step instructions, troubleshooting guides, actual photo illustrations, and technical specifications, this manual is an indispensable resource for owners, mechanics, and technicians seeking to ensure optimal performance and longevity of the equipment.