3000940
Compression Spring
Cummins®

The Cummins 3000940 Compression Spring is a specialized component designed for use in commercial trucks. It plays a significant role in the mechanical systems of these vehicles, contributing to their overall performance and reliability. Understanding its purpose and function is essential for maintaining and optimizing truck operations.

Basic Concepts of Compression Springs

Compression springs are mechanical devices that store energy when compressed. They are widely used in various mechanical systems due to their ability to absorb shock, maintain pressure, and return to their original shape once the compressive force is removed. These springs are characterized by their coil design, which allows them to compress along their axis ¹.

Purpose of the 3000940 Compression Spring

This Cummins part plays a specific role in the operation of commercial trucks. It is utilized within the truck’s mechanical systems to absorb shock, maintain consistent pressure, and ensure smooth operation of various components. Its function is integral to the efficient and reliable performance of the truck.

Key Features

The 3000940 Compression Spring is distinguished by several key features. It is constructed from high-quality materials, ensuring durability and resistance to wear. The design specifications of this spring are tailored to meet the demanding requirements of commercial truck applications. Unique attributes, such as its precise coil diameter and pitch, enhance its performance and reliability ².

Benefits

The use of the 3000940 Compression Spring in commercial trucks offers several benefits. It contributes to improved reliability by ensuring consistent performance under varying conditions. Its durability allows for long-term use with minimal maintenance. Additionally, the spring enhances efficiency in truck operations by supporting the smooth functioning of mechanical systems ³.

Installation and Usage

Proper installation of the 3000940 Compression Spring is crucial for its effective operation. It should be installed according to manufacturer guidelines to ensure it functions as intended. Specific instructions may include ensuring the spring is correctly aligned and secured within the system. Precautions should be taken to avoid damage during installation, such as using appropriate tools and handling the spring with care.

Troubleshooting and Maintenance

Common issues with the 3000940 Compression Spring may include reduced performance or failure to return to its original shape. Troubleshooting these issues involves checking for signs of wear or damage and ensuring it is correctly installed. Regular maintenance, such as inspecting for corrosion or deformation, can help ensure the spring’s longevity and optimal performance.

Common Applications

The 3000940 Compression Spring is typically applied in various systems within commercial trucks. It is commonly used in components that require shock absorption or consistent pressure, such as suspension systems or engine components. Its versatility makes it a valuable part in maintaining the overall functionality of the truck.

Performance Characteristics

The performance characteristics of the 3000940 Compression Spring include its load capacity, which determines the amount of force it can withstand, and its deflection rates, which indicate how much it compresses under load. Additionally, its environmental resistance ensures it can operate effectively in various conditions, contributing to the reliability of truck operations ⁴.

About Cummins

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its wide range of products and commitment to quality. With a history of innovation and excellence, Cummins provides components that are designed to meet the rigorous demands of commercial applications, ensuring reliability and performance in truck operations.

Compression Spring 3000940 Compatibility with Cummins Engines

The Compression Spring part number 3000940, manufactured by Cummins, is designed to fit seamlessly within a variety of Cummins engine models. This spring is engineered to provide reliable performance and durability, ensuring optimal engine operation across different applications.

K19, K38, and K50 Engines

The Compression Spring 3000940 is compatible with the K19, K38, and K50 engines. These engines are known for their robust design and efficiency, often used in heavy-duty applications. The spring’s precise dimensions and strength make it an ideal fit for maintaining the integrity of the engine’s internal components, ensuring smooth operation and longevity.

M11 CELECT PLUS and N14 MECHANICAL Engines

For the M11 CELECT PLUS and N14 MECHANICAL engines, the Compression Spring 3000940 is engineered to meet the specific demands of these high-performance engines. The M11 CELECT PLUS engine is renowned for its advanced technology and fuel efficiency, while the N14 MECHANICAL engine is celebrated for its power and reliability. The spring’s compatibility with these engines ensures that it can withstand the rigorous conditions these engines operate under, providing consistent performance and support.

NH/NT 855 Engines

The NH/NT 855 engines also benefit from the Compression Spring 3000940. These engines are designed for durability and efficiency, often used in agricultural and construction equipment. The spring’s design ensures it can handle the unique stresses and requirements of these engines, contributing to their overall performance and reliability.

Each of these engines, despite their differences, relies on the Compression Spring 3000940 to maintain critical functions within the engine’s mechanics. This compatibility underscores the versatility and importance of the spring in ensuring the smooth and efficient operation of Cummins engines across various applications.

Role of Part 3000940 Compression Spring in Engine Systems

In the realm of engine systems, the part 3000940 Compression Spring is integral to the functionality and efficiency of several components. Its role is multifaceted, contributing to the overall performance and reliability of the engine.

Fuel System Components

1. Fuel Pump: The Compression Spring aids in maintaining consistent pressure within the fuel pump. This ensures a steady fuel supply to the engine, which is essential for optimal combustion and power delivery.

2. Fuel Pump Calibration: When calibrating the fuel pump, the Compression Spring helps in fine-tuning the pressure settings. This calibration is vital for matching the fuel delivery to the engine’s requirements under various operating conditions.

3. Fuel Code and Fuel Pump Code: These codes often relate to the settings and parameters of the fuel system. The Compression Spring ensures that these codes are accurately interpreted and executed by maintaining the mechanical integrity of the fuel pump.

Governor and Maximum Settings

1. Governor Maximum (Gov. Max.): The Compression Spring plays a role in the governor mechanism, which controls the engine’s speed. By providing the necessary tension, it helps in achieving the maximum governed speed, ensuring the engine operates within safe and efficient limits.

Electronic and Mechanical Integration

1. Electronic Brake Module (EBM) Calibration: In systems where the EBM is calibrated to work in conjunction with the fuel system, the Compression Spring ensures that the mechanical components respond accurately to electronic signals. This integration is key to modern engine management systems.

2. Fuel Calibration and Fuel Code: These aspects involve the precise delivery of fuel based on engine demand. The Compression Spring contributes to this by ensuring that the mechanical components of the fuel system are in optimal condition to deliver fuel as per the calibration settings.

Overall System Harmony

The Compression Spring is a silent yet significant player in the engine’s symphony. It ensures that the mechanical components of the fuel system, governor, and electronic modules work in harmony, leading to efficient engine performance and longevity.

Conclusion

The 3000940 Compression Spring is a critical component in the operation of commercial trucks and Cummins engines. Its role in maintaining consistent pressure, absorbing shock, and ensuring the smooth operation of various mechanical systems cannot be overstated. Proper installation, regular maintenance, and understanding its compatibility with different engine models are essential for maximizing its benefits and ensuring the reliability and efficiency of truck operations.