This manual covers the Komatsu SK1020-5N and SK1020-5NA Skid Steer Loaders. These versatile machines are engineered for demanding work environments, offering robust performance and reliability. Designed for a wide range of industrial and construction applications, the SK1020 series embodies Komatsu's commitment to quality and operational efficiency, making it a trusted choice for professionals. The purpose of this comprehensive workshop service repair manual is to provide detailed information for the maintenance, repair, and troubleshooting of your Komatsu Skid Steer Loader. It includes essential sections on structure and function, maintenance standards, testing and adjustment procedures, troubleshooting guides, disassembly and assembly instructions, and diagrams and schematics. This manual is an indispensable resource for owners, mechanics, and technicians to ensure the optimal performance and longevity of the equipment.