This manual covers the Komatsu SK1020-5N and SK1020-5NA Skid Steer Loaders, with serial numbers A70001 and up for the SK1020-5N and A60001 and up for the SK1020-5NA. These machines are engineered for robust performance in demanding environments. Their design prioritizes reliability and efficiency, making them essential tools for a wide range of construction and material handling applications. This Service Repair Manual provides comprehensive information for the maintenance and repair of your Komatsu Skid Steer Loader. It includes details on structure and function, maintenance standards, standard value tables, testing and adjusting procedures, troubleshooting guides, and disassembly and assembly instructions. Diagrams and schematics are also included to aid in understanding and executing repairs, ensuring your equipment remains in optimal working condition.