This manual covers the Volvo EC18C Compact Excavator, a versatile machine engineered for demanding work environments. Designed with robust construction and reliable components, the EC18C offers efficient performance for various digging, trenching, and material handling tasks. Its compact size and hydrostatic drive system ensure maneuverability in tight spaces, while its powerful diesel engine provides ample power for its operating weight of 1790 kg. This excavator is built to deliver consistent productivity and durability on construction sites and other professional applications. The purpose of this English-language Service Manual is to provide comprehensive guidance for the maintenance and repair of the Volvo EC18C Compact Excavator. It details essential procedures, including scheduled maintenance intervals such as oil changes every 250 operating hours, and outlines fluid capacities for engine oil, hydraulic oil, and coolant. Technical specifications, troubleshooting information, and safety guidelines are also included to assist workshop technicians in ensuring the optimal performance and longevity of the equipment.