Allis Chalmers HD15

The Allis Chalmers HD15 is a tract with an impressive weight spectrum, starting from a shipping weight of 27,850 pounds to an operating weight of 30,895 pounds, highlighting a robust build. Primarily powered by a 6-cylinder General Motors engine featuring a blower diesel system, it achieves a displacement of 426 cubic inches and operates comfortably at 1600 rated RPM. The vertical I-head valve configuration within its engine and a 16.0:1 compression ratio suggest a focus on power and efficiency in heavy-duty tasks. For steering, it employs hydraulic steering clutches, ensuring better control under the load. Transmission comes in the form of a constant mesh gearbox with 6 forward gears and 3 reverse gears, and it holds up to 34 quarts of transmission oil. It stands 95 inches tall, spans 96.75 inches wide, and measures 181 inches in length, giving it a notable on-site presence and is presumably challenging to maneuver in confined spaces. Overall, the HD15 is built for significant tasks, likely including construction, excavation, and heavy agricultural work, where power and weight are advantageous.