3028868
Round Head Cap Screw
Cummins®

The 3028868 Round Head Cap Screw is a specialized fastener produced by Cummins, a leading manufacturer in the commercial truck industry. This screw is designed for use in various applications within commercial trucks, ensuring secure and reliable fastening of components. Its robust construction and precise engineering make it suitable for the demanding conditions encountered in truck operations.

Basic Concepts of Round Head Cap Screws

A Round Head Cap Screw is a type of fastener characterized by a rounded head and a threaded shaft. It is commonly used in mechanical assemblies to secure components together. The rounded head provides a larger surface area for distribution of clamping force, reducing the risk of damage to the fastened material. Additionally, the head design allows for easy installation and removal using standard tools ¹.

Purpose of the 3028868 Round Head Cap Screw in Trucks

The 3028868 Round Head Cap Screw plays a role in the operation and maintenance of commercial trucks by securing various components within the truck’s systems. It is utilized in applications such as engine assemblies, chassis parts, and other critical assemblies where reliable fastening is required. The screw helps maintain the integrity of these components, ensuring safe and efficient truck operation.

Key Features

The 3028868 Round Head Cap Screw features a durable material composition, typically consisting of high-strength steel. It has a specific thread type that provides secure fastening and resistance to loosening. The rounded head design allows for easy installation and removal, while any special coatings or treatments enhance its resistance to corrosion and wear. These features contribute to the screw’s reliability and longevity in demanding truck environments.

Benefits

The 3028868 Round Head Cap Screw offers several benefits for commercial truck applications. Its durable construction ensures long-lasting performance, even in high-stress environments. The screw’s resistance to corrosion helps protect it from the effects of moisture and chemicals, extending its service life. Additionally, the ease of installation and removal simplifies maintenance procedures, reducing downtime and enhancing overall efficiency.

Installation Guidelines

Proper installation of the 3028868 Round Head Cap Screw is crucial for ensuring secure fastening and optimal performance. Follow these guidelines for installation:

1. Clean the fastening area to remove any debris or contaminants.
2. Use the appropriate tool, such as a torque wrench, to install the screw.
3. Apply the recommended torque specification to achieve the desired clamping force without overtightening.
4. Double-check the installation to ensure the screw is properly seated and secure.

Maintenance and Troubleshooting

Regular maintenance of the 3028868 Round Head Cap Screw is important to ensure its continued reliability. Inspect the screw periodically for signs of wear, damage, or loosening. If any issues are detected, address them promptly to prevent further complications. Common troubleshooting steps include tightening loose screws, replacing damaged screws, and applying corrosion-resistant coatings as needed.

Cummins: Manufacturer Overview

Cummins Inc. is a renowned manufacturer in the commercial truck industry, known for its high-quality products and innovative solutions. With a rich history spanning several decades, Cummins has established itself as a trusted provider of engines, powertrains, and related components. The company’s commitment to excellence and customer satisfaction has earned it a strong reputation among truck operators and maintenance professionals.

Round Head Cap Screw 3028868 Compatibility with Cummins Engines

The Round Head Cap Screw part number 3028868, manufactured by Cummins, is a critical component in the assembly and maintenance of various Cummins engines. This part is designed to provide secure fastening in applications where high strength and durability are required. Below is a detailed overview of its compatibility with specific Cummins engine models:

K Series Engines

• K19
• K38
• K50

The Round Head Cap Screw 3028868 is integral to the assembly of K series engines, ensuring that various components are tightly secured during operation. This screw is often used in applications where precise torque specifications are critical to maintain engine integrity and performance.

L10 MECHANICAL

In the L10 MECHANICAL engine, the 3028868 screw is utilized in several key areas, such as securing the cylinder head to the engine block, which is vital for maintaining proper sealing and preventing leaks.

M Series Engines

• M11 CELECT PLUS
• M11 MECHANICAL

For both the M11 CELECT PLUS and M11 MECHANICAL engines, the 3028868 screw is employed in various fastening applications. These include securing components within the engine’s electronic control systems and ensuring that the mechanical parts are properly aligned and fastened.

N14 MECHANICAL

In the N14 MECHANICAL engine, the 3028868 screw is used in several high-stress areas, such as fastening the turbocharger and other critical components. This ensures that these parts remain securely in place under the demanding conditions of engine operation.

NH/NT 855

The NH/NT 855 engine also benefits from the use of the 3028868 screw in various applications. This includes securing the engine’s internal components and ensuring that all parts are tightly fastened to maintain optimal engine performance.

V Series Engines

• V28
• V903

For the V28 and V903 engines, the 3028868 screw is used in numerous critical fastening applications. This includes securing the engine’s cylinder heads, valve covers, and other components that require high-strength fastening to ensure reliable operation.

Each of these engines relies on the 3028868 Round Head Cap Screw to provide the necessary strength and reliability for their specific operational requirements. Cummins’ design and manufacturing standards ensure that this screw meets the stringent demands of heavy-duty engine applications.

Role of Part 3028868 Round Head Cap Screw in Engine Systems

The part 3028868 Round Head Cap Screw is instrumental in securing and maintaining the integrity of various components within engine systems. Its applications span across multiple critical assemblies, ensuring that each part functions optimally and remains securely in place under operational conditions.

Fuel System Integration

In the fuel system, the Round Head Cap Screw is utilized to fasten components such as the AFC VS Fuel Pump and the AFC-VS/TMD Aftercooler Variable Speed Hydraulic Assembly. These assemblies rely on precise and secure mounting to ensure efficient fuel delivery and management. The screw helps in maintaining the alignment and structural stability of the Coupling mechanisms that connect the fuel pump to the engine.

Governor and Pump Assemblies

The Cummins Electronic Fuel Control Governor and the Fuel (Variable Speed) Pump are other areas where the Round Head Cap Screw plays a significant role. It is used to secure the Fuel Filter and Damper, ensuring that the fuel lines remain intact and the filtration process is not compromised. Additionally, it fastens the Fuel Gear Pump and various iterations of the Fuel Pump, including the Bosch and EFC drives, ensuring that these components operate within their designed parameters.

Conversion and Optional Kits

For systems requiring modifications or upgrades, such as the Fuel Pump Conversion Kit and Fuel Pump Hardware, the Round Head Cap Screw is essential. It provides the necessary tension and security for these components, allowing for smooth transitions between different fuel pump options and ensuring that the Fuel Pump Option selected performs reliably.

Timing and Injection Systems

In the Valve Timing Control and Fuel Injection systems, the Round Head Cap Screw is used to secure components that dictate the timing and delivery of fuel to the engine cylinders. This includes fastening parts of the Woodward PSG Governor, which controls the fuel injection timing, thereby influencing engine performance and efficiency.

Aftercooler and Variable Speed Assemblies

The screw is also pivotal in non-aftercooler variable speed applications, where it secures parts of the Aftercooler Variable Speed Hydraulic Assembly. This ensures that the cooling process is efficient and that the variable speed components function correctly, contributing to overall engine performance.

General Applications

Across all these applications, the Round Head Cap Screw is chosen for its ability to provide a strong, corrosion-resistant fastening solution. Its design allows for easy installation and removal, facilitating maintenance and repairs without compromising the integrity of the fastened components.

Conclusion

The 3028868 Round Head Cap Screw is a vital component in the maintenance and operation of commercial trucks, particularly in Cummins engines. Its robust design, durability, and ease of use make it an essential part for securing various engine components. Proper installation and regular maintenance ensure the longevity and reliability of this Cummins part, contributing to the overall efficiency and safety of truck operations.