This Service Shop Repair Manual covers the Komatsu SK815-5N and SK815-5NA Skid Steer Loaders. These machines are engineered for demanding operational environments, offering robust performance and reliability. The SK815-5N models are identified by serial numbers A30001 and up, while the SK815-5NA models begin with serial number A10001 and up. Designed for efficiency and durability, these skid steer loaders are a testament to Komatsu's commitment to quality construction and operational excellence. This comprehensive manual provides detailed information essential for the maintenance, servicing, and repair of your Komatsu skid steer loader. It includes step-by-step instructions for disassembly and assembly, testing and adjusting procedures, and maintenance standards, all supported by clear diagrams, real photo illustrations, and schemes. The manual is designed to be very easy to follow, offering troubleshooting guidance and repair instructions that empower owners and technicians to perform technical maintenance effectively, potentially saving costs by enabling self-service.