This manual covers the Doosan Daewoo DX225NLC, a robust machine designed for demanding construction and industrial applications. Known for its powerful performance and durable construction, the DX225NLC is engineered to deliver exceptional efficiency and reliability in various operational environments. Its advanced hydraulic system and electrical components are integral to its superior functionality, ensuring optimal productivity and longevity. The purpose of this comprehensive manual is to provide detailed information for the maintenance, repair, and troubleshooting of the Doosan Daewoo DX225NLC. It includes essential technical specifications, step-by-step maintenance procedures, diagnostic guidance for electrical and hydraulic systems, and important safety precautions. This resource is intended for owners, technicians, and mechanics to ensure the vehicle remains in optimal working condition and to facilitate efficient and accurate servicing.