3680990
Flexible Hose
Cummins®

The Cummins 3680990 Flexible Hose is a specialized component designed for use in commercial truck systems. Its purpose is to facilitate the transfer of fluids between various parts of the truck, ensuring efficient operation and maintenance of the vehicle’s systems. This hose is integral to the overall functionality of commercial trucks, providing a flexible and durable solution for fluid transport ¹.

Basic Concepts of Flexible Hoses

Flexible hoses are components used in automotive and industrial systems to convey fluids such as coolant, fuel, oil, and other liquids. They are designed to offer flexibility, allowing them to bend and twist without compromising the flow of fluids. Flexible hoses are essential in systems where rigid pipes cannot be used due to the need for movement or space constraints. They function by providing a secure, leak-resistant pathway for fluids, accommodating the dynamic nature of vehicle operations ².

Purpose of the Cummins 3680990 Flexible Hose

The Cummins 3680990 Flexible Hose plays a specific role in the operation of commercial trucks by connecting various systems and transporting essential fluids. It is typically used in applications where flexibility and durability are required, such as in the engine cooling system, fuel lines, or hydraulic systems. The hose ensures that fluids are efficiently transferred between components, maintaining the performance and reliability of the truck ³.

Key Features

The Cummins 3680990 Flexible Hose boasts several key features that enhance its performance and durability. It is constructed from high-quality materials that provide excellent resistance to wear, corrosion, and high temperatures. The hose’s flexibility allows it to bend and twist without kinking, ensuring a consistent flow of fluids. Additionally, its design specifications include reinforced ends for secure connections and a smooth inner lining to reduce turbulence and improve flow efficiency.

Benefits

The Cummins 3680990 Flexible Hose offers several benefits that contribute to its effectiveness in commercial truck applications. Its improved flexibility allows for greater movement and adaptability within the truck’s systems. The reduced risk of leaks ensures that fluids are efficiently transported without loss, enhancing the overall performance of the vehicle. Enhanced durability means the hose can withstand the rigors of daily use, providing long-lasting performance. Ease of installation further adds to its appeal, allowing for quick and straightforward replacement or integration into existing systems.

Installation Considerations

When installing the Cummins 3680990 Flexible Hose, it is important to follow guidelines and best practices to ensure proper function and longevity. Necessary tools include wrenches, hose clamps, and possibly a hose cutter. The installation process involves carefully routing the hose to avoid sharp edges or excessive bending, securing it with clamps at both ends, and ensuring all connections are tight and leak-free. Common pitfalls to avoid include over-tightening clamps, which can damage the hose, and improper routing, which can lead to kinks and restricted flow.

Troubleshooting Common Issues

Common problems associated with flexible hoses include leaks, kinks, and degradation. To troubleshoot these issues, first, inspect the hose for visible signs of wear or damage. Leaks can often be traced to loose clamps or damaged sections of the hose. Kinks may be resolved by re-routing the hose to avoid sharp bends. Degradation, such as cracking or brittleness, may indicate the need for replacement. Regular inspections and maintenance can help identify and address these issues before they lead to more significant problems.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins 3680990 Flexible Hose, regular maintenance is recommended. This includes periodic inspections for signs of wear, leaks, or damage. Cleaning the hose and its connections can prevent buildup that may impede fluid flow. Additionally, ensuring that clamps are tight and connections are secure will help maintain a leak-free system. Following the manufacturer’s guidelines for inspection intervals and care procedures will contribute to the hose’s durability and reliability.

Safety Considerations

When working with the Cummins 3680990 Flexible Hose, it is important to observe safety practices and precautions. This includes handling hazardous fluids with care, using appropriate personal protective equipment, and ensuring that all connections are secure to prevent leaks. Additionally, working in a well-ventilated area and following proper disposal procedures for old or damaged hoses will contribute to a safe working environment.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for innovation, quality, and reliability in the commercial truck industry. The company’s product range includes a variety of components and systems designed to enhance the performance and efficiency of commercial vehicles. Cummins’ commitment to excellence and customer satisfaction has made it a trusted name in the industry.

Cummins Flexible Hose Part 3680990 in Engine Applications

The Cummins Flexible Hose part number 3680990 is a critical component in various engine systems, ensuring efficient and reliable operation. This part is designed to connect different parts of the engine’s fluid systems, providing flexibility and durability in high-stress environments.

ISX CM570 Engine

In the ISX CM570 engine, the Flexible Hose part 3680990 is integral to the engine’s cooling system. It connects the coolant pump to the radiator, allowing for smooth coolant flow and preventing leaks that could compromise engine performance. The hose’s flexibility accommodates the engine’s movements, reducing wear and tear on the connections.

CM570 Engine

Similarly, in the CM570 engine, the Flexible Hose part 3680990 plays a crucial role in the engine’s cooling and fuel systems. It ensures that coolant and fuel lines maintain a secure and flexible connection, which is essential for the engine’s longevity and efficiency. The hose’s design allows it to withstand the high temperatures and pressures typical in engine environments, ensuring consistent performance.

Grouping of Engine Applications

The Flexible Hose part 3680990 is a versatile component that finds application in multiple Cummins engines, including the ISX CM570 and CM570. Its design and material make it suitable for various engine systems, providing a reliable connection that enhances the engine’s overall performance and durability.

Role of Part 3680990 Flexible Hose in Engine Systems

The part 3680990 Flexible Hose is integral to the efficient operation of various engine systems, particularly in the context of an air compressor. This hose facilitates the transfer of compressed air from the compressor to other components within the engine system, ensuring a reliable and consistent air supply.

In the air compressor system, the flexible hose connects the compressor outlet to the intake manifold or other air distribution points. This connection allows for the smooth and uninterrupted flow of compressed air, which is essential for the proper functioning of the engine’s air intake system. The flexibility of the hose accommodates the vibrations and movements inherent in engine operation, reducing the risk of damage to the hose or connected components.

Additionally, the hose plays a role in maintaining the integrity of the air supply by preventing leaks. Its design ensures that the compressed air reaches its destination without loss of pressure, which is vital for optimal engine performance. The hose also aids in noise reduction by dampening the sound of compressed air as it travels through the system.

Conclusion

In summary, the Cummins 3680990 Flexible Hose is a key component in ensuring the reliable and efficient operation of engine systems, particularly in applications involving air compressors. Its role in facilitating the transfer of compressed air, accommodating engine vibrations, preventing leaks, and reducing noise underscores its importance in maintaining overall engine performance.