This workshop service repair manual covers the HITACHI EX12-2, EX15-2, EX18-2, EX22-2, EX25-2, EX30-2, EX35-2, EX40-2, and EX45-2 excavators. These machines are engineered for robust performance and reliability in demanding work environments. This manual provides comprehensive information to ensure these excavators operate at their peak efficiency and longevity. The purpose of this manual is to serve as a complete guide for maintenance, repair, and troubleshooting of the specified HITACHI excavator models. It includes detailed procedures, technical specifications, and essential safety guidelines. Owners, mechanics, and technicians will find this resource invaluable for performing all necessary service operations, ensuring the continued operational integrity of their equipment.