This factory service repair manual provides comprehensive information for the Allis Chalmers B-207-E Tractor, a member of the B-Series line. While specific production years are not detailed, this manual focuses on the engineering and operational aspects of this robust tractor, designed for demanding agricultural and industrial applications. Its hydrostatic drive unit and power train systems are key components, and the manual covers its compatibility with B-Series attachments, ensuring optimal performance and versatility for its intended use. The purpose of this English-language manual is to serve as an authoritative guide for owners, mechanics, and technicians. It contains detailed procedures for maintenance, including service intervals and lubrication specifics, alongside an advanced troubleshooting guide and a parts catalog. With hundreds of pages, it includes all necessary illustrations, drawings, photos, wiring diagrams, and technical specifications, presented with step-by-step, numbered instructions, notes, cautions, and warnings. Navigation is facilitated by a numbered table of contents and a search function, making it an indispensable resource for maintaining and repairing the Allis Chalmers B-207-E Tractor.