2897116
Captive Washer Cap Screw
Cummins®

Introduction

The Cummins 2897116 Captive Washer Cap Screw is a specialized fastener designed for heavy-duty truck applications. It ensures the integrity and reliability of the vehicle by securing various components within the truck’s structure. This screw is crucial in environments where durability and resistance to wear are essential.

Basic Concepts of Captive Washer Cap Screws

Captive washer cap screws include an integrated washer that remains attached to the screw during installation. This design helps distribute pressure evenly across fastened surfaces, reducing the risk of damage and enhancing the stability of the assembly. These screws are commonly used in mechanical assemblies where vibration and movement are concerns, as the captive washer helps maintain a secure connection ¹.

Purpose of the Cummins 2897116 Captive Washer Cap Screw

The Cummins 2897116 Captive Washer Cap Screw is used in commercial trucks to secure components and ensure structural integrity. It fastens critical parts subject to significant stress and vibration, such as engine mounts and chassis components. By providing a reliable fastening solution, this screw contributes to the overall safety and performance of the truck ².

Key Features

This Cummins part is characterized by several key features that enhance its performance and durability. Its design incorporates a captive washer that ensures consistent pressure distribution during fastening. The screw is typically made from high-strength materials, such as alloy steel, to withstand heavy-duty applications. Additionally, it may feature a corrosion-resistant coating to protect against environmental factors ³.

Benefits

Utilizing the Cummins 2897116 Captive Washer Cap Screw offers several advantages. The integrated washer simplifies the installation process, reducing the likelihood of errors and ensuring a secure fit. This screw’s robust construction and material composition contribute to improved reliability, minimizing the need for frequent replacements. Furthermore, the ease of installation and maintenance can lead to long-term cost savings for fleet operators.

Installation Process

Installing the Cummins 2897116 Captive Washer Cap Screw requires careful attention to detail to ensure proper fitting. Begin by selecting the appropriate screw size for the application. Use a torque wrench to tighten the screw to the manufacturer’s specified torque settings, ensuring that the fastener is secure without over-tightening, which could damage the components or the screw itself. It is also important to verify that the captive washer is correctly positioned to provide even pressure distribution.

Troubleshooting and Maintenance

Common issues with captive washer cap screws may include loosening due to vibration or corrosion. Regular inspections can help identify these problems early. If a screw appears loose, it should be re-tightened to the specified torque settings. In cases of corrosion, the affected screw may need to be replaced to maintain the integrity of the fastening. Applying a corrosion-resistant coating or lubricant during maintenance can help prolong the lifespan of the screw.

Compatibility and Applications

The Cummins 2897116 Captive Washer Cap Screw is designed for use in various truck models and systems where secure fastening is required. It is compatible with a range of components and systems within heavy-duty trucks, including engine mounts, chassis parts, and other structural elements. Ensuring compatibility with other components is crucial for maintaining the performance and safety of the vehicle.

Manufacturer Information - Cummins

Cummins Inc. is a renowned manufacturer in the automotive industry, with a long-standing reputation for quality and innovation in truck components. Founded in 1919, Cummins has a history of developing reliable and durable products for the commercial vehicle market. The company’s commitment to excellence is evident in its rigorous testing and quality control processes, ensuring that each component, including the Cummins 2897116 Captive Washer Cap Screw, meets the high standards required for heavy-duty applications.

Cummins Part 2897116: Captive Washer Cap Screw in Engine Applications

The Cummins part 2897116, a Captive Washer Cap Screw, is a critical component in several engine models. This part is integral to the assembly and functionality of the engines, ensuring secure fastening and stability.

QST30 and CM2350 Engines

In the QST30 and CM2350 engines, the Captive Washer Cap Screw is used in various applications where secure fastening is paramount. This includes securing components that are subject to high stress and vibration, ensuring that parts remain tightly fastened and in place during operation. The design of the cap screw, with its integrated washer, provides a reliable method of fastening that reduces the risk of loosening over time.

T101 Engine

The T101 engine also utilizes the Captive Washer Cap Screw in its construction. This engine, like the QST30 and CM2350, benefits from the reliability and durability of the cap screw. The screw’s design ensures that critical components are held firmly in place, contributing to the overall performance and longevity of the engine.

Grouping of Engines

The QST30 and CM2350 engines, while distinct in their specifications and applications, share a commonality in their use of the Captive Washer Cap Screw. This part is essential in maintaining the structural integrity of these engines, ensuring that all fastened components remain secure under operational conditions.

The T101 engine, while different in its design and specifications, also relies on the Captive Washer Cap Screw for critical fastening applications. The use of this part across these engines highlights its versatility and importance in engine assembly and maintenance.

Role of Part 2897116 Captive Washer Cap Screw in Engine Systems

In the intricate assembly of engine systems, the part 2897116 Captive Washer Cap Screw plays a significant role in ensuring the secure attachment and proper functioning of various components. This screw is integral in the connection and stabilization of the lever and rocker mechanisms within the engine.

Lever Mechanism

The lever, a pivotal component in engine systems, is often used to transmit motion or force. The part 2897116 Captive Washer Cap Screw is employed to fasten the lever to its mounting point. This secure attachment is essential for the lever to effectively transfer motion without slippage or misalignment. The washer incorporated within the screw design helps distribute the load, preventing damage to the lever and its mounting surface.

Rocker Mechanism

Rockers are another fundamental element in engine systems, typically used in valvetrains to transfer motion from the camshaft to the valves. The part 2897116 Captive Washer Cap Screw is utilized to attach the rocker to its pivot point or mounting bracket. This ensures that the rocker remains firmly in place, allowing for precise and consistent valve operation. The captive washer feature of the screw enhances the stability of the connection, reducing the risk of loosening over time due to engine vibrations.

In both applications, the part 2897116 Captive Washer Cap Screw contributes to the reliability and efficiency of the engine system by providing a robust and secure fastening solution. Its design is tailored to withstand the dynamic forces and environmental conditions present within an engine, ensuring long-term performance and durability.

Conclusion

The Cummins 2897116 Captive Washer Cap Screw is a vital component in heavy-duty truck applications, ensuring the secure fastening of critical parts under high stress and vibration. Its design, featuring an integrated washer, enhances stability and reduces the risk of loosening. The screw’s robust construction and corrosion-resistant properties contribute to its reliability and longevity, making it an essential part in maintaining the performance and safety of commercial trucks.