3010589
Captive Washer Cap Screw
Cummins®

The Captive Washer Cap Screw, Part #3010589 by Cummins, is a specialized fastener designed for use in commercial truck maintenance. This component is integral to ensuring the reliability and efficiency of truck operations. Cummins, a renowned manufacturer of diesel engines and related components, is recognized for producing high-quality automotive parts that meet the demanding requirements of the commercial trucking industry ¹.

Basic Concepts of Captive Washer Cap Screw

A Captive Washer Cap Screw is a type of fastener that incorporates a washer directly into the screw design. This integration ensures that the washer remains in place during installation, reducing the risk of loss and ensuring consistent performance ². The primary function of this screw is to provide a secure and stable connection between components, while the integrated washer enhances sealing capabilities and distributes pressure more evenly across the fastened area. This type of screw is commonly used in mechanical assemblies where vibration and movement are prevalent, such as in the construction of commercial trucks.

Role of 3010589 Captive Washer Cap Screw in Truck Operation

This Cummins part plays a specific role in the operation and maintenance of commercial trucks. It is utilized in various applications within the truck’s structure and engine components. This screw is particularly valuable in areas where secure fastening is crucial to maintaining the integrity of the assembly, such as in the attachment of panels, brackets, and other structural elements. Its design helps to ensure that connections remain tight and secure, even under the stress of regular use and exposure to harsh conditions ³.

Key Features

The 3010589 Captive Washer Cap Screw boasts several key features that enhance its performance and durability. It is constructed from high-quality materials, typically a durable alloy that resists corrosion and wear. The design includes a captive washer that is permanently attached to the screw, ensuring that it cannot be misplaced during installation. Additionally, the screw features a hexagonal head for easy tightening with standard tools, and its threads are precision-cut to provide a strong and secure hold.

Benefits

Using the 3010589 Captive Washer Cap Screw offers several advantages. The integrated washer improves sealing at the fastened joint, which can help prevent leaks and reduce the ingress of contaminants. This design also reduces maintenance requirements, as the washer is less likely to become dislodged or lost. Furthermore, the screw’s robust construction and secure fastening capability contribute to enhanced structural integrity in truck assemblies, promoting safer and more reliable operation ⁴.

Troubleshooting and Maintenance

Common issues with Captive Washer Cap Screws may include loosening over time due to vibration or wear on the threads. Regular inspection and tightening of these screws can help maintain their effectiveness. If a screw becomes damaged or stripped, it should be replaced to ensure the continued integrity of the fastened joint. Proper torque specifications should be followed during installation to avoid over-tightening, which can lead to damage, or under-tightening, which can result in an insecure connection.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including diesel engines and related components. With a history spanning over a century, Cummins is committed to quality and innovation. The company’s extensive product line includes the 3010589 Captive Washer Cap Screw, which is part of its offering of reliable and high-performance automotive components. Cummins’ reputation for excellence is built on its dedication to producing parts that meet the rigorous demands of the commercial trucking industry.

Cummins Part 3010589: Captive Washer Cap Screw in Engine Applications

The Cummins part 3010589, a Captive Washer Cap Screw, is a critical component in several engine configurations. This part is integral to the assembly and operation of various Cummins engines, ensuring secure fastening and reliable performance.

G855 Series

The G855 series engines, including the G855 CM558 and GTA855 CM558 (CM2358), utilize the Captive Washer Cap Screw in multiple applications. These engines are known for their robust design and high performance, and the part 3010589 plays a vital role in maintaining the integrity of the engine’s structure. It is often used in securing components that require precise alignment and stability.

G101 Series

In the G101 engines, the Captive Washer Cap Screw is employed to fasten various parts, ensuring that they remain securely in place under operational stresses. This engine series is recognized for its durability and efficiency, and the part 3010589 is a testament to the meticulous engineering that goes into these machines.

N14 Series

The N14 engine lineup, which includes the N14 CELECT, N14 G, and N14 MECHANICAL variants, also incorporates the Captive Washer Cap Screw. This part is essential in these engines for fastening components that are subject to high loads and vibrations. The N14 series is known for its versatility and reliability, and the part 3010589 contributes to the overall robustness of these engines.

NH/NT 855 Series

The NH/NT 855 engines benefit from the use of the Captive Washer Cap Screw in several critical applications. This part ensures that the engine components are fastened securely, which is crucial for the performance and longevity of these engines. The NH/NT 855 series is designed for heavy-duty applications, and the part 3010589 is a key element in maintaining the engine’s structural integrity.

Understanding the Role of Part 3010589 Captive Washer Cap Screw in Engine Systems

In the intricate assembly of engine systems, the Part 3010589 Captive Washer Cap Screw serves a significant function by ensuring the secure attachment and stability of various components. This screw is integral in the fastening process of several key parts, contributing to the overall efficiency and reliability of the engine.

Integration with Base Parts and Brake Components

The Captive Washer Cap Screw is utilized in the secure mounting of base parts, which form the foundational structure of the engine. It plays a role in attaching the brake components, specifically the brake mounting screw, ensuring that the brake system is firmly in place and operates effectively.

Application in EBM (Exhaust Brake Module) System

Within the EBM system, the screw is employed to fasten the EBM housing, EBM lever, and rocker components. This secure attachment is vital for the proper functioning of the exhaust brake, which relies on the precise interaction of these parts to modulate engine braking.

Securing Rocker Arm and Housing Assemblies

The screw is also essential in the assembly of the rocker arm and its housing. It is used in the mounting of the rocker arm housing and the rocker housing itself, ensuring that these components remain in the correct position and alignment. This is particularly important for the rocker housing mounting and the rocker housing MTG (mounting), where stability is key to the performance of the rocker mechanism.

Role in Lifting and Mounting Brackets

In addition, the Captive Washer Cap Screw is used in the attachment of lifting brackets and various mounting brackets throughout the engine system. These brackets are critical for the structural integrity of the engine, providing support and secure points for other components to be attached.

Ensuring Stability in Complex Assemblies

Overall, the Part 3010589 Captive Washer Cap Screw is a fundamental component in the secure assembly of engine systems. Its application across a range of parts—from base components to complex assemblies like the EBM system and rocker arm housings—underscores its importance in maintaining the structural and operational integrity of the engine.

Conclusion

The 3010589 Captive Washer Cap Screw by Cummins is a vital component in the maintenance and operation of commercial trucks and various engine systems. Its design, which includes an integrated washer, ensures secure fastening and consistent performance, even under harsh conditions and vibrations. The use of high-quality materials and precision-cut threads contributes to its durability and reliability. This part is essential in maintaining the structural integrity and operational efficiency of engines, particularly in the G855, G101, N14, and NH/NT 855 series. Regular maintenance and proper installation are crucial to ensure the continued effectiveness of this critical component.