Allison TT2221-1 Transmission in Ford A64 Loader

[MikePhua]

The Ford A64 loader, a robust piece of machinery from the 1980s, is equipped with the Allison TT2221-1 transmission. This combination offers a blend of power and reliability, making it a preferred choice for various industrial applications.
Allison TT2221-1 Transmission Overview
The Allison TT2221-1 is part of the TT2000 series, known for its durability and performance in heavy-duty applications. This transmission features a twin-turbine torque converter and planetary gear sets, providing smooth power delivery and efficient operation. It is designed to handle high torque loads, making it suitable for wheel loaders like the Ford A64.
Ford A64 Loader Specifications
The Ford A64 loader is equipped with a 6.6-liter diesel engine, delivering approximately 125 horsepower. It boasts a bucket capacity of 9,900 pounds, making it capable of handling substantial loads. The loader's hydraulic system operates at a pressure of 2,500 psi, with a pump flow rate of 28 gallons per minute, ensuring efficient lifting and digging operations.
Common Issues and Troubleshooting
Operators have reported instances where the loader barely moves despite the transmission being engaged. In such cases, it's essential to check the transmission filter for debris, as the presence of aluminum shavings may indicate converter failure. Draining the fluid through a fine screen can help identify contaminants. Additionally, ensuring that there are no unusual noises or vibrations can aid in diagnosing the issue.
Maintenance and Repair
Regular maintenance of the Allison TT2221-1 transmission involves checking fluid levels, inspecting filters, and monitoring for any signs of wear or damage. In case of significant issues, referring to the service manual can provide detailed instructions for disassembly, repair, and reassembly. Rebuilding the transmission may include replacing seals, gaskets, and other components to restore its functionality.
Conclusion
The combination of the Allison TT2221-1 transmission and the Ford A64 loader offers a powerful and reliable solution for heavy-duty applications. Understanding the specifications, common issues, and maintenance procedures can help operators maximize the lifespan and performance of this equipment.