The Komatsu PC03-2 Hydraulic Excavator, part of the PC03 series, is a compact and versatile machine designed for various construction and utility tasks. Built with Komatsu's renowned engineering, this excavator offers reliability and efficient operation. Its tracked drive system and hydrostatic transmission provide excellent maneuverability on diverse job sites, while the hydraulic pilot controls ensure precise operation. This model is ideal for applications requiring a compact footprint without compromising performance. This Service Repair Shop Manual in English provides comprehensive guidance for the maintenance and repair of the Komatsu PC03-2 Hydraulic Excavator, serial numbers 21587 and up. It covers essential information including detailed maintenance procedures, troubleshooting diagnostics, technical specifications, and safety guidelines. This manual is an indispensable resource for owners, mechanics, and technicians, enabling them to effectively maintain the optimal performance and longevity of their equipment.