3010942
Throttle Shaft
Cummins®

Introduction

The Throttle Shaft Assembly 3010942 is a component manufactured by Cummins, a well-established name in the automotive industry, particularly known for its heavy-duty truck engines. This assembly is integral to the operation of these engines, facilitating the control of air intake and fuel delivery ¹.

Basic Concepts of Throttle Shaft Assembly

Throttle shaft assemblies are designed to regulate the airflow into an engine, which directly influences fuel delivery. By adjusting the throttle, the assembly controls the amount of air entering the engine, thereby affecting the fuel mixture and the engine’s power output. This mechanism is fundamental to the engine’s ability to respond to driver inputs and maintain efficient operation under varying conditions ².

Operation of the Throttle Shaft Assembly

The Throttle Shaft Assembly 3010942 operates by connecting the throttle pedal to the engine’s throttle mechanism. When the driver presses the accelerator pedal, the assembly translates this action into movement of the throttle plate, which adjusts the airflow into the engine. This interaction is crucial for modulating engine speed and power, ensuring that the engine responds accurately to driver commands ³.

Role in Truck Operation

In heavy-duty trucks, the Throttle Shaft Assembly 3010942 plays a significant role in engine performance and fuel efficiency. By precisely controlling air intake, it helps maintain optimal fuel combustion, which is vital for both power delivery and efficiency. Its reliable operation under demanding conditions ensures that trucks can perform effectively in a variety of applications.

Key Features

The Throttle Shaft Assembly 3010942 is characterized by its durable construction and precise engineering. These features ensure that it can withstand the rigors of heavy-duty truck operation while providing accurate throttle control. Its design is tailored to be compatible with Cummins engines, ensuring seamless integration and performance.

Benefits

Users of the Throttle Shaft Assembly 3010942 can expect improved engine responsiveness, which is crucial for dynamic driving conditions. Additionally, the assembly contributes to enhanced fuel efficiency by ensuring that the engine operates with an optimal air-fuel mixture. Its reliable performance under demanding conditions further adds to its value in heavy-duty applications.

Troubleshooting and Maintenance

Common issues with the Throttle Shaft Assembly 3010942 may include wear and tear or misalignment, which can affect engine performance. Regular inspection and maintenance, such as cleaning and lubricating moving parts, can help prevent these issues. Addressing problems promptly ensures continued reliable operation and extends the component’s lifespan.

Installation Considerations

When installing the Throttle Shaft Assembly 3010942, it is important to ensure proper alignment and follow torque specifications to avoid issues such as leaks or inefficient operation. Compatibility with existing engine components should also be verified to ensure smooth integration and operation.

Performance Enhancements

Upgrading or modifying the Throttle Shaft Assembly 3010942 can lead to performance enhancements such as improved throttle response or increased power output. These modifications should be approached with caution, ensuring compatibility and adherence to safety standards to maintain engine reliability and performance.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a strong reputation in the automotive industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product line includes engines for on-highway, off-highway, and power generation applications, making it a trusted partner in the heavy-duty truck sector.

Compatibility with Cummins Engines

The Throttle Shaft Assembly part number 3010942, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is integral to the engine’s throttle system, ensuring smooth and precise control of the engine’s power output. Below is a detailed look at the compatibility of this part with various Cummins engines.

K-Series Engines

• K19: The Throttle Shaft Assembly is compatible with the K19 engine, ensuring reliable operation and performance.
• K38: This part fits seamlessly with the K38 engine, providing the necessary control and durability.
• K50: The K50 engine also utilizes the Throttle Shaft Assembly part 3010942, maintaining the engine’s efficiency and responsiveness.

L-Series Engines

• L10 MECHANICAL: The L10 MECHANICAL engine is another model that benefits from the Throttle Shaft Assembly part 3010942, ensuring optimal throttle control.

M-Series Engines

• M11 CELECT PLUS: The M11 CELECT PLUS engine is designed to work with the Throttle Shaft Assembly, enhancing its electronic and mechanical integration.
• M11 MECHANICAL: Similarly, the M11 MECHANICAL engine is compatible with this part, providing a robust solution for throttle management.

N-Series Engines

• N14 MECHANICAL: The N14 MECHANICAL engine is another model that utilizes the Throttle Shaft Assembly part 3010942, ensuring precise throttle control and reliability.

NH/NT Series Engines

• NH/NT 855: The Throttle Shaft Assembly part 3010942 is also compatible with the NH/NT 855 engine, ensuring that the engine operates smoothly and efficiently.

V-Series Engines

• V28: The V28 engine is designed to work with the Throttle Shaft Assembly part 3010942, ensuring that the engine’s throttle system functions correctly.
• V903: The V903 engine also utilizes this part, providing the necessary control and durability for high-performance applications.

This compatibility ensures that the Throttle Shaft Assembly part 3010942 can be used across a wide range of Cummins engines, providing a reliable and efficient solution for throttle management.

Role in Engine Systems

The Throttle Shaft Assembly (Part 3010942) is integral to the operation of various engine systems, ensuring precise control and efficient performance. Here’s how it interfaces with several key components:

Fuel System Integration

• Fuel Pump and Governor: The Throttle Shaft Assembly works in conjunction with the fuel pump and governor to regulate fuel delivery. It ensures that the fuel pump operates within the specified parameters, maintaining consistent fuel flow.
• Fuel and Water-in-Fuel Governor Pump: This assembly is essential for the accurate functioning of the fuel and water-in-fuel governor pump. It helps in modulating the fuel supply based on engine demand, enhancing overall efficiency.
• Fuel Tubing: Proper alignment and operation of the Throttle Shaft Assembly are vital for the integrity of the fuel tubing. It ensures that fuel is delivered smoothly without interruptions.

Governor System Coordination

• Variable Speed Governor: The Throttle Shaft Assembly is a key component in the variable speed governor system. It allows for precise adjustments to engine speed, which is critical for applications requiring variable operational speeds.
• Governor Pack Spring and Spring Tractor Pack: These springs rely on the Throttle Shaft Assembly to maintain tension and ensure that the governor pack operates correctly. This coordination is essential for stable engine performance across different loads.

Calibration and Sump Systems

• Calibration: The assembly plays a role in the calibration process, ensuring that the engine operates within its designed parameters. It interfaces with calibration components to fine-tune engine performance.
• Fuel Pump & Gov Sump: The sump system depends on the Throttle Shaft Assembly to manage the fuel pump’s operation. This ensures that the sump remains at optimal levels, preventing fuel starvation or overflow.

Cover and Bushing Assemblies

• Cover and Bushing: These components protect the Throttle Shaft Assembly and reduce friction. The assembly must fit precisely within these covers and bushings to ensure smooth operation.
• Variable Speed Housing Assembly: The Throttle Shaft Assembly is housed within this component, allowing for adjustments that cater to variable speed requirements.

Additional Systems

• Power Rating Sub-Option and Spring Pack MVS Gov: These systems benefit from the precise control offered by the Throttle Shaft Assembly, ensuring that the engine meets its power rating specifications and operates efficiently under various conditions.
• Non-Aftercooler Variable Speed and Non-AFC VS FP/WW Sump: For engines without an aftercooler, the Throttle Shaft Assembly helps in managing the fuel pump and sump systems, ensuring they operate efficiently in variable speed scenarios.

Conclusion

In summary, the Throttle Shaft Assembly (Part 3010942) is a pivotal component that ensures the harmonious operation of various engine systems, from fuel delivery to governor functions, and calibration processes. Its role in maintaining optimal engine performance and efficiency makes it a critical part of Cummins’ heavy-duty truck engines.