This manual covers the DOOSAN DAEWOO DX225NLC HEAVY EXCAVATORS, specifically for serial numbers 5001 and up. Engineered for demanding operational environments, these excavators represent a commitment to robust performance and durability. Their design prioritizes efficiency and reliability, making them a dependable choice for a wide range of heavy-duty construction and excavation tasks. The focus on quality construction ensures consistent operation and longevity in challenging conditions. The purpose of this comprehensive service manual is to provide essential technical information for the maintenance and repair of your DOOSAN DAEWOO DX225NLC HEAVY EXCAVATORS. It includes detailed technical service information, fitting instructions, and special instructions for repair procedures. This guide is an indispensable resource for owners, technicians, and mechanics, enabling them to perform necessary upkeep and address any issues effectively, thereby ensuring the optimal performance and extended service life of the equipment.