The ZX250LCH-3 is a robust excavator designed for demanding construction and earthmoving applications. As part of the 3 Series, this model benefits from a commitment to engineering excellence, delivering reliable performance and operational efficiency. Its powerful diesel engine, approximately 7.8 liters in displacement, produces around 140 kW (188 HP) and meets Tier 3 / Stage IIIA emissions standards. With a hydrostatic transmission featuring two-speed travel motors and an operating weight of approximately 25,300 kg, the ZX250LCH-3 is engineered for stability and power in diverse work environments, boasting a maximum digging reach of 9.97 meters and a standard bucket capacity of 1.08 cubic meters. This Workshop Service Manual provides comprehensive guidance for the ZX250LCH-3, covering essential maintenance procedures, detailed troubleshooting steps, and critical technical specifications. It is an indispensable resource for owners, mechanics, and technicians seeking to ensure the optimal performance and longevity of their equipment. The manual details key maintenance intervals, such as engine oil changes every 500 hours and hydraulic filter replacements every 1000 hours, along with fluid capacities for engine oil (24 L) and hydraulic oil (260 L). This English-language document is designed to facilitate efficient servicing and repair, maintaining the operational readiness of the ZX250LCH-3.