This manual pertains to the Volvo EC160D L and EC160DL excavators, part of the D Series generation. These machines are engineered for robust performance and reliability in demanding operational environments. While specific production years are not detailed, the EC160D L and EC160DL models represent Volvo's commitment to advanced construction equipment, featuring a diesel engine and a hydrostatic transmission for efficient power delivery. Their crawler drive system is designed for stability and traction across various terrains, making them versatile tools for digging, handling, and grading applications. The purpose of this comprehensive service manual is to provide detailed information for the maintenance, repair, and troubleshooting of the Volvo EC160D L and EC160DL excavators. It covers essential areas including general information, safety precautions, engine and frame service, as well as the machinery house and cab exterior. Technicians and owners will find step-by-step repair procedures, diagnostic information, and electrical service details, including wiring diagrams. This manual serves as an indispensable resource for ensuring the optimal performance and longevity of your Volvo excavator.