The Yanmar B7-Sigma (EP) Excavator Operation & Maintenance Manual provides comprehensive information for operating and maintaining your excavator. This manual, covering serial numbers 50501 and above, is an essential resource for anyone working with this model. It begins with an introduction to safety guidelines, followed by a detailed product overview. You'll find instructions on obtaining replacement parts and scheduling service calls, as well as a thorough explanation of basic safety measures and precautions for both operation and servicing. The manual then guides you through the controls and operating procedures, covering topics such as transportation, cold weather operation, and long-term storage. A dedicated troubleshooting section assists in diagnosing and resolving potential issues. The maintenance chapter provides a comprehensive guide to essential servicing practices, detailing consumables, fueling, oiling, and greasing procedures for various temperature ranges. This section also includes standard tightening torques for bolts and nuts, as well as a maintenance table outlining periodic replacement schedules for critical components. Finally, the manual concludes with detailed specifications, dimensional diagrams, and additional guidance on topics such as using the hooker bucker and managing noise levels.

The Yanmar B7-Sigma (EP) Excavator is a compact and versatile machine designed for various tasks such as landscaping, construction, and utility work. Its compact size and maneuverability make it ideal for working in tight spaces, while its powerful engine and robust construction ensure efficient performance on demanding projects. The B7-Sigma (EP) boasts a 0.8-ton operating weight, making it a lightweight yet powerful excavator. This compact size allows for easy transportation and operation in confined areas, making it suitable for tasks requiring precision and agility. The B7-Sigma (EP) features a Yanmar 3TNV70-KGA diesel engine, renowned for its fuel efficiency and low emissions. This engine delivers ample power for digging, loading, and other excavating activities, while its compact size contributes to the excavator's overall lightweight design. The B7-Sigma (EP) comes equipped with a range of features designed to enhance operator comfort and productivity. Its ergonomically designed cab provides a clear view of the work area, facilitating precise control. The operator controls are intuitive and easy to use, allowing for smooth and efficient operation. The B7-Sigma (EP) incorporates a hydraulic system that delivers smooth and responsive movements, minimizing operator fatigue and maximizing productivity. Additional features like a rearview camera and optional attachments further enhance the excavator's versatility and operational efficiency. The B7-Sigma (EP) stands out as a reliable and durable machine, built to withstand the rigors of daily use and deliver exceptional performance in a variety of applications. Its combination of compact size, powerful engine, and user-friendly features makes it a highly sought-after choice for professionals seeking an excavator that blends maneuverability and power for efficient and effective performance.