This manual covers the Komatsu SK1020-5N and SK1020-5NA Skid Steer Loaders, designed for demanding operational environments. These machines are engineered for reliability and efficiency, suitable for a wide range of maintenance, assembly, disassembly, servicing, operation, handling, lubrication, checking, and adjustment tasks. With specific serial number ranges identified for each model, this documentation ensures you have precise information for your equipment. The purpose of this comprehensive English-language manual is to provide detailed guidance for owners, mechanics, and technicians. It encompasses both Service Repair and Operation & Maintenance procedures, covering essential areas such as safety information, product identification, operating instructions, troubleshooting, and detailed maintenance plans. Within its searchable and printable format, you will find information on lubrication diagrams, approved lubricants, periodic component replacement, tightening torques, and specifications for authorized optional equipment, ensuring optimal performance and longevity of your Komatsu Skid Steer Loader.