3035624
Captive Washer Cap Screw
Cummins®

Introduction

The Captive Washer Cap Screw Part #3035624 by Cummins is a specialized fastener designed for use in commercial truck maintenance. It plays a role in ensuring the integrity of truck components by providing a secure and reliable fastening solution. This screw is integral to the maintenance and operation of commercial trucks, contributing to the overall efficiency and safety of these vehicles ¹.

Basic Concepts of Captive Washer Cap Screws

A Captive Washer Cap Screw is a type of fastener that incorporates a washer within its design. This integration allows for enhanced performance by providing a consistent and even distribution of load across the fastened components. The washer, which is captive and cannot be lost during installation, ensures that the screw maintains proper alignment and torque, reducing the risk of loosening over time. These screws are commonly used in mechanical assemblies where vibration and dynamic loads are present, making them ideal for automotive and heavy-duty truck applications ².

Purpose of the 3035624 Captive Washer Cap Screw in Truck Operation

The 3035624 Captive Washer Cap Screw is specifically designed to secure critical components and assemblies in commercial trucks. Its role in truck operation includes fastening engine components, chassis parts, and other critical assemblies that are subject to significant stress and vibration. By providing a secure and reliable fastening solution, this screw helps maintain the structural integrity and performance of the truck ³.

Key Features

The 3035624 Captive Washer Cap Screw features a design that includes an integrated washer, ensuring consistent load distribution and alignment during installation. It is made from high-quality materials that offer durability and resistance to corrosion, making it suitable for heavy-duty applications. The screw’s design also allows for easy installation and removal, enhancing efficiency during maintenance procedures ⁴.

Benefits of Using the 3035624 Captive Washer Cap Screw

Incorporating the 3035624 Captive Washer Cap Screw in truck maintenance offers several advantages. These include improved reliability due to the integrated washer, which ensures consistent torque and load distribution. The ease of installation reduces maintenance time, while the screw’s durability and corrosion resistance contribute to prolonged service life. Additionally, the design of the screw helps in enhancing the overall load distribution across fastened components.

Installation Process

The correct installation of the 3035624 Captive Washer Cap Screw involves several steps to ensure optimal performance and longevity. Begin by cleaning the fastening area to remove any debris or corrosion. Use a torque wrench to install the screw, ensuring that the specified torque is applied to achieve the correct tension. It is important to follow the manufacturer’s guidelines for torque specifications to avoid over-tightening or under-tightening, which can affect the screw’s performance.

Troubleshooting Common Issues

Common problems associated with Captive Washer Cap Screws include wear, corrosion, and improper installation. Signs of wear may include stripped threads or a loose fit, while corrosion can be identified by rust or discoloration. Improper installation, such as over-tightening, can lead to damage to the fastened components. To address these issues, regular inspections should be conducted to identify any signs of wear or corrosion early. Proper installation techniques, including the use of the correct torque specifications, should be followed to prevent damage.

Maintenance Tips

Regular maintenance of the 3035624 Captive Washer Cap Screw is important to prolong its service life. This includes routine inspections to check for signs of wear, corrosion, or loosening. Cleaning the screw and surrounding area can help prevent corrosion and ensure proper function. If signs of significant wear or damage are detected, consider replacing the screw to maintain the integrity of the fastened components.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a commitment to quality, Cummins provides a wide range of products for the automotive and heavy-duty truck industries. The company’s dedication to reliability and high-quality components is evident in its offerings, including the 3035624 Captive Washer Cap Screw, which is designed to meet the demanding requirements of commercial truck applications.

Captive Washer Cap Screw 3035624 in Cummins Engines

The Captive Washer Cap Screw 3035624, manufactured by Cummins, is a critical component in several of their engine models. This part is designed to secure various engine components, ensuring stability and reliability during operation. Here is a detailed look at the engines where this part is utilized:

G855 Series

• G855
• G855 CM558
• GTA855 CM558 (CM2358) G101

ISX Series

• ISX CM570
• ISX CM870

K Series

• K19
• K38
• K50

KTA Series

• KTA19GC
• KTA19GC CM558
• KTA38GC CM558

N14 Series

• N14 CELECT
• N14 CELECT PLUS
• N14 G
• N14 MECHANICAL

NH/NT Series

• NH/NT 855

QSK Series

• QSK19 CM2350 K105
• QSK19 CM2350 K114
• QSK19 CM2350 K144G
• QSK19 CM500
• QSK19 CM850 MCRS
• QSK19G
• QSK50 CM2150 K107
• QSK50 CM2150 MCRS
• QSK60 CM850 MCRS

This screw is integral to the assembly and maintenance of these engines, providing a secure fastening mechanism that is essential for the proper functioning of the engine’s various components.

Role of Part 3035624 Captive Washer Cap Screw in Various Engine Components

The part 3035624 Captive Washer Cap Screw is instrumental in securing and maintaining the integrity of numerous engine components. Its application spans across a variety of systems, ensuring that each part functions optimally and remains securely in place.

Air System Components

In the air compressor system, the 3035624 screw plays a role in attaching critical components, ensuring the compressor operates efficiently without any part becoming dislodged. Similarly, for the air crossover mounting and air intake manifold, this screw is used to secure these components to the engine, facilitating a smooth and uninterrupted airflow.

Brake and Crankcase Systems

For the C-brake kit and crankcase mounting breather, the 3035624 screw is essential in maintaining the structural integrity of these systems. It ensures that the brake components are securely fastened, enhancing safety and performance. In the crankcase system, it helps in maintaining the breather’s position, which is vital for proper ventilation and pressure regulation within the crankcase.

Cummins Engine Brake and Electrical Systems

In the Cummins engine brake kit, this screw is utilized to secure brake components, ensuring they function correctly under various operating conditions. For the EBM: Accessories Wiring, it aids in securing wiring harnesses and accessories, preventing electrical issues that could arise from loose connections.

Exhaust and Lubrication Systems

The exhaust manifold / turbocharger mounting relies on the 3035624 screw to ensure that the exhaust system is firmly attached to the engine, reducing the risk of leaks and enhancing performance. In the lubrication system, components such as the filter/cooler lub oil, lub oil filter, cooler, lubricating oil cooler cover mounting, lubricating oil filter and cooler, lubricating oil pan adapter mounting, oil (top level assembly) cooler, oil bypass filter, oil filter and cooler, oil pan, oil pan adapter mounting, oil pan arrangement, oil pan mounting, and oil pan mounting cover all utilize this screw to secure filters, coolers, and pans. This ensures efficient oil flow and cooling, which are essential for engine longevity and performance.

Compressor and Suction Systems

In the freon compressor and suction arrangement, the 3035624 screw is used to secure components, ensuring efficient operation and preventing leaks. This is particularly important in systems where precise control of refrigerant flow is necessary.

Throttle Valve

Lastly, the throttle valve system benefits from the use of the 3035624 screw by ensuring that the valve is securely mounted. This is crucial for maintaining the correct air-fuel mixture and ensuring smooth engine operation.

Conclusion

Overall, the 3035624 Captive Washer Cap Screw is a versatile component that plays a significant role in the secure and efficient operation of various engine systems. Its design and features make it an essential part in the maintenance and operation of commercial trucks, contributing to the overall efficiency and safety of these vehicles.