109686
Compression Spring
Cummins®

Introduction

The Cummins 109686 Compression Spring is a specialized component designed for use in commercial trucks. It serves a vital function within the truck’s mechanical systems, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and significance is key to appreciating its role in the operation of commercial trucks.

Basic Concepts of Compression Springs

Compression springs are mechanical devices that store energy when compressed. They are widely used in various mechanical systems due to their ability to absorb shock, maintain pressure, and return to their original shape once the compressive force is removed. These springs are crafted from materials that offer high tensile strength and durability, ensuring they can withstand repeated cycles of compression and decompression ¹.

Role of the 109686 Compression Spring in Truck Operation

The 109686 Compression Spring plays a specific role in the operation of commercial trucks by providing necessary pressure and support within the truck’s mechanical systems. It is often found in applications where consistent pressure is required, such as in valve trains, suspension systems, and other critical components. Its function is to ensure smooth operation and longevity of the parts it supports ².

Key Features of the 109686 Compression Spring

The 109686 Compression Spring is characterized by several key features that enhance its performance. It is made from high-quality materials that offer superior strength and resistance to wear. The design specifications of this spring, including its coil diameter, wire diameter, and free length, are meticulously engineered to meet the demanding requirements of commercial truck applications. Additionally, it may possess unique characteristics such as a specific rate of compression or a particular load-bearing capacity that make it suitable for its intended use ³.

Benefits of Using the 109686 Compression Spring

Utilizing the 109686 Compression Spring in truck operations offers several benefits. Its high-quality construction contributes to improved performance and durability of the truck’s mechanical systems. The spring’s reliable operation under various conditions ensures consistent performance, reducing the likelihood of unexpected failures. Moreover, its design and material composition enhance the overall reliability of the truck, leading to increased uptime and efficiency.

Installation and Integration

Proper installation and integration of the 109686 Compression Spring within a truck’s mechanical system are crucial for its effective operation. Guidelines for installation include ensuring the spring is correctly aligned and seated within its designated space. It is also important to verify that the spring is not over-compressed during installation, as this can lead to premature failure. Careful attention to these details ensures the spring functions as intended, contributing to the smooth operation of the truck.

Troubleshooting Common Issues

Common issues with the 109686 Compression Spring may include signs of wear, reduced performance, or failure to maintain pressure. Troubleshooting steps involve inspecting the spring for physical damage, ensuring it is correctly installed, and verifying that it is not subjected to excessive loads beyond its design specifications. Addressing these issues promptly can prevent more significant problems and ensure the continued reliable operation of the truck.

Maintenance Tips

Regular maintenance of the 109686 Compression Spring is recommended to ensure optimal performance and longevity. This includes periodic inspection for signs of wear or damage, ensuring it remains correctly aligned and seated, and verifying that it operates within its designed load parameters. Adhering to these maintenance practices helps maintain the spring’s performance and contributes to the overall reliability of the truck.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration systems, and aftermarket parts. With a rich history of innovation and a strong reputation in the commercial truck industry, Cummins is committed to delivering high-quality products that meet the demanding needs of its customers. The company’s extensive product range and focus on customer satisfaction have established it as a trusted name in the industry.

Role of Part 109686 Compression Spring in Engine Systems

The Part 109686 Compression Spring is integral to the functionality of several components within engine systems. Its primary role is to provide the necessary force to maintain the proper operation of these components.

Fuel System Components

In the fuel system, the compression spring works in conjunction with the fuel pump to ensure consistent fuel delivery. It is involved in the calibration process of the fuel pump, specifically with codes such as CP 26, CPL 11, CPL 187, CPL 188, CPL 26, CPL 69, CPL-28, CPL-65, CPL-67, and CPL220. The spring helps in maintaining the correct pressure and flow rate by counteracting the forces exerted during the pumping cycle.

Governor Spring Functions

The compression spring also plays a significant role as a governor spring in the torque converter governor (TC Gov). Here, it assists in regulating the torque converter’s operation by providing the required tension to the governor mechanism. This ensures that the transmission shifts smoothly and efficiently based on the engine’s load and speed.

Calibration and Uncalibrated States

When dealing with calibrated fuel systems, the compression spring is essential in maintaining the set parameters. For instance, in a fuel pump calibration scenario, the spring ensures that the pump operates within the specified calibration code. Conversely, in an uncalibrated fuel pump setup, the spring still provides the necessary force to facilitate basic fuel delivery, though without the precision of a calibrated system.

Interaction with Fuel Codes

The spring interacts with various fuel codes and fuel pump codes to fine-tune the fuel delivery system. Whether it’s a standard fuel code or a more complex calibration code, the compression spring ensures that the mechanical components within the fuel pump assembly function harmoniously.

Spring in T C Governor

In the T C Governor, the compression spring is pivotal in modulating the governor’s response to changes in engine load. This modulation is vital for the optimal performance of the torque converter, directly influencing the vehicle’s drivability and fuel efficiency.

Conclusion

The Cummins 109686 Compression Spring is a versatile and critical component that enhances the reliability and performance of fuel pumps and governors within engine systems. Its role in calibration and maintaining operational integrity across various codes and configurations underscores its importance in engine functionality.