This manual covers the Komatsu PC200-6, PC210-6, PC220-6, and PC230-6 excavators from the Dash 6 generation. These machines are engineered for robust performance and reliability in demanding construction and earthmoving applications. Featuring a powerful Komatsu SAA6D102E-1 engine with a displacement of 5.88 L, they deliver substantial digging capabilities, including a maximum digging depth of 6600 mm and a maximum reach of 9870 mm. The hydrostatic transmission provides efficient power delivery across two speed ranges, while the durable undercarriage, equipped with standard 600 mm track shoes, ensures stability and traction on various job sites. With an operating weight typically around 20200 kg, these excavators are designed for heavy-duty operations. This comprehensive Workshop Manual and Operation and Maintenance Manual provides essential information for the proper care and servicing of your Komatsu excavator. It details critical maintenance procedures, including fluid capacities and recommended service intervals for engine oil, hydraulic filters, and air filters. The manual also includes technical specifications, troubleshooting guides, and safety precautions to ensure optimal performance and longevity of the equipment. By following the guidelines within this manual, owners, mechanics, and technicians can effectively maintain, diagnose, and repair these machines, minimizing downtime and maximizing operational efficiency.