The Komatsu PC228USLC-3 is a robust excavator designed for demanding construction and earthmoving applications. Featuring a powerful Komatsu SAA6D107E-1 turbocharged, direct injection, water-cooled diesel engine, it delivers 110 kW (148 HP) of net power. This generation 3 model, with serial numbers 20001 and up, is engineered for reliability and efficiency, boasting a hydrostatic transmission for smooth operation and precise control. Its compact radius design, coupled with a long carriage undercarriage, provides excellent stability and maneuverability in confined spaces, making it ideal for urban environments and tight job sites. This Workshop Service Repair Manual provides comprehensive guidance for the Komatsu PC228USLC-3. It covers essential maintenance procedures, including detailed lubrication specifications and recommended service intervals for engine oil, hydraulic oil, and fuel filters. The manual also delves into technical specifications, troubleshooting techniques, and safety guidelines to ensure optimal performance and longevity of the equipment. Whether for routine maintenance or complex repairs, this official factory manual is an indispensable resource for owners, operators, and service technicians.