3930962
Crankshaft Flange
Cummins®

The Cummins 3930962 Crankshaft Flange is a component designed for use in heavy-duty truck engines. Its purpose is to provide a secure connection between the crankshaft and the flywheel, facilitating the transfer of rotational force and contributing to the engine’s overall balance and efficiency.

Basic Concepts of Crankshaft Flanges

A crankshaft flange is a disc-shaped component that attaches to the end of a crankshaft. Its general function is to provide a mounting surface for the flywheel, which is crucial for the operation of the engine’s starting system and the transmission of power to the drivetrain. The flange interfaces with the flywheel through bolts or studs, ensuring a robust connection that can withstand the high torque and rotational speeds of the engine ¹.

Purpose of the Cummins 3930962 Crankshaft Flange

This Cummins part plays a role in the operation of a truck engine by connecting the crankshaft to the flywheel. This connection is vital for the efficient transfer of rotational energy from the engine to the transmission system. Additionally, the flange contributes to the engine’s balance by providing a stable mounting point for the flywheel, which helps to reduce vibrations and ensure smooth operation ².

Key Features

The 3930962 is designed with specific characteristics to enhance its performance and durability. It is typically made from high-strength materials to withstand the demanding conditions within a heavy-duty engine. The flange features precise machining and a robust design to ensure a secure fit and reliable operation. Unique attributes may include specialized coatings or treatments to improve resistance to wear and corrosion.

Benefits

This part offers several advantages. It contributes to improved engine performance by ensuring a solid connection between the crankshaft and flywheel. This results in efficient power transmission and reduced mechanical losses. Additionally, the flange enhances the reliability of the engine by providing a durable and stable mounting point for the flywheel. Ease of maintenance is another benefit, as the flange is designed for straightforward installation and removal, facilitating routine engine servicing.

Installation Process

Proper installation of the 3930962 involves several steps. First, ensure the crankshaft is clean and free of any debris. Align the flange with the crankshaft and secure it using the appropriate bolts or studs. Torque the fasteners to the manufacturer’s specified values to ensure a tight and secure fit. It is recommended to use a torque wrench for this process to achieve the correct tightening specifications.

Troubleshooting Common Issues

Common problems associated with crankshaft flanges include loose connections, wear, and damage. Potential causes may be improper installation, insufficient torque, or exposure to excessive heat or corrosion. Recommended solutions include re-torquing the fasteners, inspecting for wear or damage, and replacing the flange if necessary. Regular maintenance practices, such as cleaning and inspecting the flange during routine engine service, can help prevent issues.

Maintenance Tips

To ensure the longevity and optimal performance of the 3930962, regular maintenance is important. Inspect the flange during routine engine servicing for signs of wear, corrosion, or damage. Ensure that the fasteners are torqued to the correct specifications and that the connection between the flange and flywheel remains secure. Cleaning the flange and surrounding areas can also help prevent the buildup of debris that may cause issues.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including 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 automotive and heavy-duty truck industries. The company’s extensive product range and commitment to customer satisfaction have made it a trusted name among professionals and enthusiasts alike ³.

Compatibility of 3930962 Crankshaft Flange

The 3930962 is designed to fit seamlessly with a range of Cummins engines, ensuring a secure and reliable connection between the crankshaft and the engine block. This part is critical for maintaining the structural integrity and operational efficiency of the engine.

Engine Compatibility

• 4B3.9 and 6B5.9 Engines: The 3930962 is specifically engineered to fit the 4B3.9 and 6B5.9 engines. These engines are known for their robust design and are widely used in various industrial and commercial applications. The flange ensures that the crankshaft is properly aligned and secured, which is essential for the smooth operation of these engines.

• Other Cummins Engines: While the primary focus is on the 4B3.9 and 6B5.9 engines, the 3930962 may also be compatible with other Cummins engines. It is always recommended to verify compatibility with the specific engine model to ensure a proper fit and function.

Importance of Proper Fitment

The correct fitment of the crankshaft flange is crucial for the overall performance and longevity of the engine. A well-fitted flange ensures that there is no undue stress on the crankshaft or the engine block, which can lead to premature wear and potential engine failure. The 3930962 part number is designed to meet the stringent requirements of Cummins engines, providing a reliable solution for maintaining engine integrity.

Installation Considerations

When installing the 3930962, it is important to follow the manufacturer’s guidelines to ensure a proper fit. This includes using the correct torque specifications and ensuring that all mating surfaces are clean and free of debris. Proper installation will help to maintain the engine’s performance and reliability over time.

By ensuring that the 3930962 is correctly installed, engine operators can maintain the efficiency and durability of their Cummins engines, whether they are the 4B3.9, 6B5.9, or other compatible models.

Integration of 3930962 Crankshaft Flange with Engine Systems

The 3930962 is an essential component in the assembly and operation of various engine systems. Its primary function is to provide a secure mounting point for several key components, ensuring the smooth and efficient operation of the engine.

Connection to the Damper

The Crankshaft Flange interfaces directly with the damper, which is responsible for absorbing torsional vibrations produced by the engine. This connection is vital for maintaining the balance and stability of the crankshaft, thereby reducing wear and tear on the engine components.

Role in the Front Drive System

In engines equipped with a front drive system, the Crankshaft Flange serves as a critical attachment point. It ensures that the drive components are properly aligned and secured, allowing for the efficient transfer of power from the crankshaft to the front-mounted accessories and drivetrain components.

Interaction with the Vibration Adapter

The Crankshaft Flange also plays a significant role when integrated with a vibration adapter. This adapter is designed to further mitigate vibrations that may not be fully absorbed by the damper. The secure fit provided by the flange ensures that the adapter can effectively perform its function, contributing to the overall smoothness and longevity of the engine operation.

Ensuring Structural Integrity

By providing a robust and reliable mounting surface, the Crankshaft Flange helps maintain the structural integrity of the engine. It ensures that all connected components remain in their proper positions, even under the high stresses and vibrations inherent in engine operation.

Conclusion

In summary, the 3930962 Crankshaft Flange is a foundational component that facilitates the proper functioning of the damper, front drive system, and vibration adapter, ultimately contributing to the efficient and reliable performance of the engine.