This comprehensive parts manual covers the Allis Chalmers 12G-b Crawler Loader and Steel Mill Special, including the 11R Ripper. The manual contains detailed information on all parts for serial numbers ranging from 96Y02001 to UP, and 55M02001 to UP, making it an indispensable resource for owners, operators, and mechanics. With its detailed illustrations, exploded views, and precise part numbers, this manual simplifies the process of identifying, locating, and ordering replacement parts. Whether you are performing routine maintenance or tackling a major repair, this manual provides the necessary information to ensure efficient and accurate part identification, minimizing downtime and maximizing productivity.

The Allis Chalmers 12G-b Crawler Loader was a robust and versatile machine designed for demanding construction and industrial applications. Introduced in the mid-20th century, it gained a reputation for its power, durability, and reliability. The 12G-b featured a powerful diesel engine providing ample torque for tackling heavy loads. Its crawler tracks ensured excellent traction and stability on uneven terrain, making it suitable for excavation, loading, and material handling tasks. The 12G-b also boasted a spacious operator cab offering a comfortable and ergonomic workspace for the operator. It was equipped with a hydraulically operated loader arm and bucket, allowing for efficient material handling with precision and control. The 12G-b's versatility was further enhanced by its optional attachments, including a ripper, which enabled it to break up compacted soil and rock. The "Steel Mill Special" variant of the 12G-b, featuring a dedicated 11R ripper, was specifically designed for heavy-duty work in steel mills and other industrial environments. This specialized configuration equipped the machine to handle arduous tasks like demolition, scrap metal handling, and material movement in demanding conditions. The 11R ripper, with its robust construction and powerful hydraulics, could effectively break up and loosen even the toughest materials, making it an invaluable asset for industrial applications. The Allis Chalmers 12G-b, in its standard and Steel Mill Special forms, became a mainstay in construction, industrial, and mining operations, demonstrating its capabilities in a wide range of applications. Its powerful engine, versatile design, and optional ripper attachment made it a reliable and efficient workhorse, contributing significantly to various construction and industrial projects.