This manual covers the Komatsu PC30-7 hydraulic excavator, a robust machine designed for various construction and earthmoving tasks. Known for its engineering quality and reliability, the PC30-7 offers efficient operation and durability in demanding environments. Its specific production years are not detailed, but it is identified by serial numbers starting from 18001. This comprehensive Workshop Service Repair Manual provides essential information for maintaining and repairing the Komatsu PC30-7. It includes detailed procedures for service and maintenance, troubleshooting guides, technical specifications, and safety guidelines. This manual is an indispensable resource for owners, mechanics, and technicians to ensure the optimal performance and longevity of the excavator.