This comprehensive service and repair manual provides detailed instructions for diagnosing and repairing Allis Chalmers Model 616, 620, and 720 tractors. It contains the same information used by professional technicians and mechanics, ensuring you have access to the most accurate and complete resource available. The manual features clear and concise text, combined with detailed illustrations, making it easy for anyone with basic mechanical knowledge to confidently service their tractor. You'll find comprehensive diagrams, in-depth illustrations, and all the manufacturer's specifications and technical information needed for a successful repair.

The Allis-Chalmers Model 616, 620, and 720 tractors were a series of workhorses designed for a wide range of agricultural and industrial applications. These tractors were known for their durability, reliability, and adaptability, making them popular choices for farmers, ranchers, and construction workers alike. Introduced in the 1950s and 60s, these models offered significant advancements in power and performance compared to their predecessors. The 616, with its 4-cylinder engine and 45 horsepower, was well-suited for lighter tasks, while the 620, boasting a 6-cylinder engine and 65 horsepower, handled heavier chores with ease. The 720, with its 70 horsepower and exceptional torque, was a true powerhouse, capable of pulling heavy plows and handling demanding tasks.

Despite their differences in power output, these tractors shared several common features that contributed to their success. All were equipped with rugged transmissions and axles designed for long-lasting performance. Their hydraulic systems provided smooth and responsive operation for lifting implements, and their comfortable operator stations ensured comfortable use throughout long workdays. The Allis-Chalmers Model 616, 620, and 720 tractors were iconic machines that played a significant role in shaping the agricultural and industrial landscapes of their time. Their robust construction, versatile capabilities, and reliable performance made them a favorite among users for decades. Even today, these vintage tractors are sought after for their dependability, nostalgic value, and the satisfaction of owning a piece of agricultural history.