3071217
Captive Washer Cap Screw
Cummins®

The 3071217 Captive Washer Cap Screw by Cummins is a component designed for use in heavy-duty trucks. Cummins, a well-established manufacturer in the automotive industry, produces this part to meet the demanding requirements of truck applications. This screw plays a role in ensuring the structural integrity and functionality of various truck systems.

Basic Concepts of Captive Washer Cap Screws

A Captive Washer Cap Screw is a type of fastener that includes an integrated washer. This design allows for efficient installation and reduces the risk of washer loss during assembly ¹. In the automotive industry, these screws are commonly used in applications where consistent and reliable fastening is required. They help distribute load more evenly across the fastened materials, enhancing the overall stability and durability of the assembly ².

Purpose of the 3071217 Captive Washer Cap Screw

This Cummins part is utilized in various applications within heavy-duty trucks. It plays a role in securing components that are subject to significant stress and vibration. This screw is particularly important in systems where maintaining a tight and consistent connection is crucial for performance and safety. Its applications range from engine components to chassis parts, ensuring that critical connections remain intact under demanding conditions.

Key Features

The 3071217 Captive Washer Cap Screw features a design that incorporates a captive washer, which is held in place by a slot in the screw head. This design ensures that the washer stays aligned with the screw during installation. The screw is made from high-strength materials, typically alloy steel, which provides excellent durability and resistance to wear. Additionally, the screw may have a coating to enhance corrosion resistance, making it suitable for use in various environmental conditions.

Benefits

Using the 3071217 Captive Washer Cap Screw offers several advantages. Its design simplifies the installation process, reducing the time and effort required compared to traditional screws and washers. The integrated washer ensures a more consistent and secure connection, which is particularly beneficial in applications where vibrations and dynamic loads are present. The high-strength material and potential corrosion-resistant coating contribute to the screw’s longevity and reliability in heavy-duty applications.

Installation Process

To install the 3071217 Captive Washer Cap Screw, begin by ensuring that the mating surfaces are clean and free of debris. Use a torque wrench to tighten the screw to the manufacturer’s specified torque settings. This ensures that the screw is properly secured without over-tightening, which could damage the components or the screw itself. Follow best practices for fastening, such as using a star pattern for multi-screw applications to ensure even distribution of clamping force ³.

Troubleshooting Common Issues

Common issues with Captive Washer Cap Screws include loosening due to vibration and corrosion. To address loosening, ensure that the screw is properly torqued during installation. Additionally, using lock washers or thread-locking compounds can help maintain the screw’s position. Corrosion can be mitigated by selecting screws with appropriate coatings and regularly inspecting and maintaining the fastened components to ensure they remain in good condition.

Maintenance Tips

Regular maintenance of the 3071217 Captive Washer Cap Screw involves periodic inspection for signs of wear, corrosion, or loosening. Check the torque of the screws during routine maintenance intervals to ensure they remain securely fastened. Clean the screw and surrounding area to remove any debris or contaminants that could accelerate wear or corrosion. Following these maintenance practices will help ensure the longevity and optimal performance of the screw.

Cummins: A Brief Overview

Cummins is a renowned manufacturer with a long-standing reputation in the automotive industry. The company is known for its commitment to quality and innovation in producing automotive components. Cummins’ history of delivering reliable and high-performance parts has established them as a trusted name in the industry. Their dedication to advancing technology and maintaining high standards of manufacturing ensures that their products, like the 3071217 Captive Washer Cap Screw, meet the rigorous demands of heavy-duty applications.

Captive Washer Cap Screw in Cummins Engines

The Captive Washer Cap Screw, part number 3071217, is a critical component in various Cummins engines, ensuring secure fastening and stability. This part is integral to the assembly and maintenance of several engine models, providing a reliable connection between different parts.

N14 MECHANICAL

In the N14 MECHANICAL engine, the Captive Washer Cap Screw is used to secure various components, including the cylinder head, valve covers, and other critical assemblies. Its design ensures that the washer remains captive, preventing it from being lost during assembly or disassembly. This feature is particularly important in high-stress environments where the integrity of the connection is paramount.

The use of the Captive Washer Cap Screw in the N14 MECHANICAL engine helps maintain the structural integrity and operational efficiency of the engine. Its application in securing the cylinder head and valve covers ensures that these components remain tightly fastened, reducing the risk of leaks and mechanical failures. This part’s reliability and ease of use make it a preferred choice for maintaining the N14 MECHANICAL engine’s performance.

Role of Part 3071217 Captive Washer Cap Screw in Various Engine Systems

Compressor Mounting

In compressor mounting applications, the 3071217 Captive Washer Cap Screw is utilized to secure the compressor to its designated mounting bracket. This ensures that the compressor remains firmly in place, minimizing vibrations and potential misalignments that could affect performance. The captive washer within the screw design aids in distributing the load more evenly across the mounting surface, enhancing the stability and longevity of the compressor installation.

Fuel Transfer Right Hand Engine Kit

When integrating the fuel transfer right hand engine kit, the 3071217 Captive Washer Cap Screw plays a significant role in attaching various components securely. It is often used to fasten fuel lines, brackets, and other critical elements that require a robust and reliable connection. The captive washer ensures that the screw does not back out over time, maintaining the integrity of the fuel transfer system and preventing potential leaks or failures.

Pressure-Time Pacer Conversion Kit

In the context of the pressure-time pacer conversion kit, the 3071217 Captive Washer Cap Screw is essential for mounting and securing the conversion components. This includes attaching the pacer unit to the engine block or other structural elements. The screw’s design helps in withstanding the dynamic pressures and temperatures encountered during operation, ensuring that the conversion kit functions as intended without compromising safety or performance.

Wiring Harness Mounting Kit

For the wiring harness mounting kit, the 3071217 Captive Washer Cap Screw is employed to secure the wiring harness in place. This is vital for maintaining the organization and protection of electrical wires, preventing them from coming into contact with moving parts or heat sources. The captive washer feature ensures that the screw remains in position, reducing the risk of electrical issues arising from loose connections.

Conclusion

The 3071217 Captive Washer Cap Screw by Cummins is a vital component in heavy-duty truck applications, offering reliable fastening and stability across various engine systems. Its design, featuring an integrated washer, simplifies installation and enhances the durability of connections. Regular maintenance and proper installation practices are essential to ensure the longevity and performance of this Cummins part.