4012796
Drive Coupling Flange
Cummins®

Introduction

The Drive Coupling Flange 4012796 is a component designed for use in commercial trucks, playing a role in the efficient operation of the vehicle’s drivetrain. This part is manufactured by Cummins Inc., a company known for its expertise in diesel engine manufacturing and commitment to innovation and quality in the automotive industry ⁴.

Basic Concepts of Drive Coupling Flanges

A Drive Coupling Flange is a mechanical component that connects two shafts, allowing them to rotate together while accommodating minor misalignments. In the context of a truck’s drivetrain, it facilitates the transfer of power from the engine to the transmission and ultimately to the wheels. The flange ensures a secure and efficient connection, contributing to the overall performance and reliability of the vehicle ¹.

Purpose of the 4012796 Drive Coupling Flange

This Cummins part is specifically designed to transmit power within the truck’s drivetrain. It connects the engine to the transmission, ensuring that power is efficiently transferred with minimal loss. Its placement within the drivetrain is crucial for maintaining the integrity of the power transmission path, supporting the truck’s operational capabilities in various driving conditions ².

Key Features

The 4012796 Drive Coupling Flange is constructed from high-quality materials, ensuring durability and performance under heavy-duty conditions. Its design includes precision-machined surfaces for a secure fit and optimal power transmission. Unique characteristics such as enhanced misalignment capabilities and robust construction contribute to its reliability and longevity in demanding applications ³.

Benefits

This part offers several benefits, including improved power transmission efficiency, enhanced durability, and reliability in heavy-duty applications. Its design ensures a secure connection between the engine and transmission, reducing the risk of power loss and improving overall vehicle performance. The flange’s robust construction and material composition contribute to its longevity, making it a valuable component for commercial truck operations.

Installation Considerations

Proper installation of the Drive Coupling Flange is important for ensuring optimal performance and longevity. Installation guidelines include adhering to specified torque values to secure the flange without overtightening, ensuring precise alignment with connected components to prevent undue stress, and verifying compatibility with other drivetrain components to maintain system integrity.

Troubleshooting Common Issues

Common issues with the Drive Coupling Flange may include misalignment, wear, or failure. Troubleshooting steps involve inspecting the flange for signs of damage or wear, checking alignment with connected components, and ensuring that torque specifications were followed during installation. Addressing these issues promptly can help maintain the efficiency and reliability of the truck’s drivetrain.

Maintenance Tips

Regular maintenance of the Drive Coupling Flange is important for ensuring optimal performance and longevity. Maintenance recommendations include periodic inspection for signs of wear or damage, cleaning the flange and connected components to remove debris that could affect performance, and applying lubrication as specified by the manufacturer to reduce friction and wear.

Cummins Overview

Cummins Inc. has a long history of innovation and quality in the diesel engine manufacturing industry. The company’s expertise and commitment to advancing technology have established it as a leader in the automotive sector. Cummins’ focus on developing reliable and efficient components, like the 4012796 Drive Coupling Flange, underscores its dedication to supporting the performance and durability of commercial vehicles ⁴.

Drive Coupling Flange for Cummins Engines

The Drive Coupling Flange, part number 4012796, is a component in the Cummins engine lineup, specifically designed to interface with the QSV81G and QSV91G engines. This part ensures a secure and efficient connection between the engine and its driven components, facilitating the transfer of power and maintaining the integrity of the engine’s operational dynamics.

Compatibility with QSV81G and QSV91G Engines

The Drive Coupling Flange is engineered to fit seamlessly with both the QSV81G and QSV91G engines. These engines are known for their robust performance and reliability, and the flange plays a pivotal role in their functionality. By providing a precise and durable connection, the flange helps to minimize power losses and reduce the risk of mechanical failures.

Installation and Functionality

When installed, the Drive Coupling Flange ensures that the engine’s rotational power is effectively transmitted to the driven machinery. This is achieved through a carefully designed interface that accommodates the specific torque and rotational requirements of the QSV81G and QSV91G engines. The flange’s robust construction and precise engineering are essential for maintaining the operational efficiency and longevity of these engines.

Importance in Engine Performance

The Drive Coupling Flange is integral to the overall performance of the QSV81G and QSV91G engines. Its role in facilitating the transfer of power cannot be overstated, as it directly impacts the engine’s ability to perform under various operational conditions. The flange’s design ensures that the connection remains stable and secure, even under high-stress conditions, thereby contributing to the engine’s overall reliability and performance.

Role of Part 4012796 Drive Coupling Flange in Engine Systems

The Drive Coupling Flange, identified by part number 4012796, is an integral component in the synchronization and efficient operation of various engine systems. It facilitates the seamless transfer of rotational force between the engine’s output shaft and the connected components, ensuring optimal performance and reliability.

Integration with the Governor

In engine systems equipped with a governor, the Drive Coupling Flange plays a significant role. It connects the governor mechanism to the engine’s output shaft, allowing for precise control of engine speed. This connection ensures that the governor can effectively modulate the throttle valve position in response to changes in load or speed, maintaining stable engine operation.

Interaction with Electronic Systems

For engines with electronic control systems, the Drive Coupling Flange is essential for integrating mechanical and electronic components. It connects the electronic throttle control system to the engine, enabling the electronic control unit (ECU) to adjust the throttle valve position based on sensor inputs and operational parameters. This integration enhances engine responsiveness and efficiency.

Role in Manifold and Throttle Assembly

Within the manifold and throttle assembly, the Drive Coupling Flange ensures a secure and reliable connection between the throttle valve and the engine. This connection is vital for maintaining the integrity of the air intake system, allowing for precise control of airflow into the engine. Proper alignment and connection provided by the flange contribute to optimal combustion and engine performance.

Connection to the Throttle Valve

The Drive Coupling Flange directly interfaces with the throttle valve, facilitating the transfer of motion from the engine to the valve. This connection is crucial for the accurate modulation of air intake, which directly impacts engine power output and fuel efficiency. The flange ensures that the throttle valve operates smoothly and consistently, enhancing overall engine performance.

Valve and Throttle Synchronization

Finally, the Drive Coupling Flange ensures synchronization between various valves and the throttle mechanism. By providing a robust and precise connection, it allows for coordinated operation of these components, which is essential for maintaining engine balance, reducing vibrations, and enhancing durability. This synchronization is particularly important in high-performance engines where precise control and reliability are paramount.

Conclusion

The 4012796 Drive Coupling Flange is a critical component in the efficient operation of commercial truck drivetrains and Cummins engines. Its role in facilitating the transfer of power, ensuring secure connections, and enhancing engine performance underscores its importance in the automotive industry. Proper installation, maintenance, and troubleshooting are essential for maximizing the benefits of this part.