This Service Repair Manual covers the Komatsu WA270-7 Wheel Loader, serial number A27001 and up. Engineered for demanding construction and material handling applications, this machine embodies Komatsu's commitment to robust design and operational efficiency. Its advanced features and reliable diesel engine, the 6D107E-2, ensure consistent performance in challenging environments. The WA270-7 is built to deliver power, durability, and productivity, making it a trusted asset for any heavy-duty operation. This comprehensive manual provides essential information for the maintenance and repair of your Komatsu WA270-7. It includes detailed sections on index and foreword, specifications, structure and function, standard value tables, testing and adjusting, troubleshooting, disassembly and assembly, maintenance standards, diagrams and drawings, and an appendix. This resource is designed to assist owners, technicians, and mechanics in understanding, servicing, and maintaining the wheel loader to ensure optimal performance and longevity.