3017052
Captive Washer Cap Screw
Cummins®

Introduction

The Cummins 3017052 Captive Washer Cap Screw is a specialized fastener designed for use in commercial trucks. Its primary role is to secure various components within the truck’s mechanical systems, ensuring stability and reliability under demanding operational conditions. This screw is particularly valued for its ability to maintain a secure fit while simplifying the installation process ¹.

Basic Concepts

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 simplifying the assembly process. In mechanical assemblies, these screws are used to join components securely, providing both structural integrity and sealing capabilities ².

Purpose and Role in Truck Operation

The Cummins 3017052 Captive Washer Cap Screw plays a significant role in the operation of commercial trucks by securing critical components. It is often used in applications where vibration and movement could loosen traditional fasteners. By maintaining a tight and consistent connection, this screw contributes to the overall functionality and reliability of truck components, ensuring that parts remain securely fastened during operation ³.

Key Features

The Cummins 3017052 Captive Washer Cap Screw features a robust design that includes a built-in washer, which enhances its sealing capabilities and reduces the likelihood of leakage. It is constructed from high-quality materials, ensuring durability and resistance to corrosion. The screw’s design also includes threading that provides a strong grip, further securing the components it joins.

Benefits

Using the Cummins 3017052 Captive Washer Cap Screw offers several advantages. Its integrated washer design improves sealing performance, which is crucial in applications where fluid leakage could cause operational issues. The screw’s durable construction enhances its longevity, reducing the need for frequent replacements. Additionally, the simplified installation process saves time and labor, making it a practical choice for maintenance and repair tasks.

Installation Process

Proper installation of the Cummins 3017052 Captive Washer Cap Screw involves several steps. First, ensure 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, ensuring a secure fit without over-tightening. It is also important to verify that the integrated washer is properly seated to achieve the desired sealing effect.

Common Applications

The Cummins 3017052 Captive Washer Cap Screw is versatile and finds applications in various truck components and systems. It is commonly used in engine assemblies, transmission systems, and chassis components. Its ability to provide a secure and leak-proof connection makes it suitable for a wide range of fastening needs within commercial trucks.

Troubleshooting and Maintenance

To ensure optimal performance and longevity of the Cummins 3017052 Captive Washer Cap Screw, regular maintenance is recommended. Inspect the screw periodically for signs of wear or corrosion. If any issues are detected, such as loosening or damage to the integrated washer, the screw should be replaced to maintain the integrity of the connection. Additionally, ensuring that all mating surfaces remain clean and free of contaminants will help prevent premature failure.

Manufacturer Information

Cummins Inc. is a renowned manufacturer with a long-standing reputation in the automotive and heavy-duty truck industries. The company is committed to delivering high-quality components that meet the rigorous demands of commercial applications. Cummins’ focus on innovation and quality ensures that their products, including the 3017052 Captive Washer Cap Screw, are reliable and perform well under various operational conditions.

Cummins Part 3017052 Captive Washer Cap Screw in Engine Applications

The Cummins part 3017052 Captive Washer Cap Screw is a versatile component utilized across a range of Cummins engines. This part is designed to secure various engine components, ensuring stability and reliability in engine operation. Below is a detailed look at how this part is integrated into specific Cummins engines.

K Series Engines

• K19
• K38
• K50

The K series engines, including the K19, K38, and K50, utilize the 3017052 Captive Washer Cap Screw in several critical applications. This screw is often employed in securing engine mounts, brackets, and other structural components, ensuring that these parts remain firmly in place under the high stresses of engine operation.

L Series Engines

• L10 MECHANICAL

The L10 MECHANICAL engine incorporates the 3017052 Captive Washer Cap Screw in its design, particularly in areas where it is essential to maintain precise alignment and secure fastening of components. This includes securing various engine mounts and brackets, ensuring the engine operates smoothly and efficiently.

M Series Engines

• M11 CELECT PLUS
• M11 MECHANICAL

Both the M11 CELECT PLUS and M11 MECHANICAL engines use the 3017052 Captive Washer Cap Screw for a variety of applications. This screw is crucial in securing components such as engine mounts, brackets, and other structural elements that require a reliable and secure fastening solution.

N Series Engines

• N14 MECHANICAL

The N14 MECHANICAL engine employs the 3017052 Captive Washer Cap Screw in its design, particularly in securing engine mounts and brackets. This ensures that these components remain firmly attached, contributing to the overall stability and performance of the engine.

NH/NT Series Engines

• NH/NT 855

The NH/NT 855 engine utilizes the 3017052 Captive Washer Cap Screw in several key areas. This screw is essential for securing engine mounts, brackets, and other structural components, ensuring that these parts remain securely fastened under the demanding conditions of engine operation.

QSK Series Engines

• QSK19 CM500

The QSK19 CM500 engine incorporates the 3017052 Captive Washer Cap Screw in its design, particularly in securing engine mounts and brackets. This ensures that these components remain firmly attached, contributing to the overall stability and performance of the engine.

V Series Engines

• V28
• V903

The V28 and V903 engines use the 3017052 Captive Washer Cap Screw for a variety of applications. This screw is crucial in securing components such as engine mounts, brackets, and other structural elements that require a reliable and secure fastening solution.

Role of Part 3017052 Captive Washer Cap Screw in Engine Systems

In the intricate assembly of engine systems, the 3017052 Captive Washer Cap Screw plays a significant role in ensuring the secure attachment and reliable operation of various components. This screw is integral in the mounting and securing processes across different engine subsystems.

Fuel System Components

1. AFC Auto Fuel Pump and Non-AFC Auto Fuel Pump: The 3017052 screw is used to fasten the fuel pump housing, ensuring that the pump remains securely in place during operation. This is vital for maintaining the integrity of the fuel delivery system.

2. Fuel Base and Fuel Gear Pump: These components often require secure mounting to the engine or chassis. The captive washer cap screw ensures that these pumps are held firmly, preventing any movement that could affect fuel flow or cause leaks.

3. Fuel Filter and Damper: The screw is employed in attaching the fuel filter and damper to the fuel lines, guaranteeing a tight seal and stable connection. This helps in maintaining consistent fuel pressure and filtering efficiency.

4. Fuel Pump and Accessory Mounting: Accessories related to the fuel pump, such as the fuel and water governor pump, are often secured using this screw. This ensures that all accessories function cohesively without risk of detachment.

Control and Governor Systems

1. Throttle Control: In systems where precise control over fuel delivery is required, the 3017052 screw is used to secure throttle control components. This ensures that the throttle mechanism operates smoothly and reliably.

2. Wiring Mounting Harness: Electrical components and harnesses need to be securely fastened to prevent any movement that could lead to wire fatigue or disconnection. The captive washer cap screw provides a robust solution for this purpose.

Additional Systems

1. Injector Stand Audit Kit: For diagnostic and maintenance purposes, the injector stand audit kit components are often secured using this screw. This ensures that the kit remains stable during use, allowing for accurate readings and assessments.

2. On Board Spares: Any spare parts or components stored on board the engine system are typically fastened using the 3017052 screw. This prevents them from shifting or becoming misplaced during operation.

Governor and Pump Systems

1. Fuel and W-W Governor Pump: The secure attachment of the governor pump is essential for maintaining consistent engine performance. The captive washer cap screw plays a key role in this attachment process.

2. Fuel Code @ Cal Code and Fuel Pump @ Cal Code: Calibration components require precise mounting to ensure accurate fuel delivery and engine performance. The 3017052 screw facilitates this by providing a secure and stable connection.

Cost and Efficiency

The use of the 3017052 Captive Washer Cap Screw in these various applications not only ensures mechanical integrity but also contributes to cost efficiency. By providing a reliable fastening solution, it reduces the need for frequent maintenance and replacement, ultimately leading to lower operational costs.

Conclusion

The Cummins 3017052 Captive Washer Cap Screw is a critical component in the reliable operation of commercial trucks and Cummins engines. Its robust design, integrated washer, and durable construction make it an ideal choice for securing various engine components. Proper installation and regular maintenance ensure its longevity and continued performance, contributing to the overall efficiency and reliability of truck and engine systems.