3006350
Throttle Shaft
Cummins®

Introduction

The Cummins 3006350 Throttle Shaft is a component designed for use in commercial trucks, playing a role in the engine’s operation. This part is integral to the truck’s performance, ensuring efficient control over engine speed and power output. Understanding its function and importance can help in maintaining and optimizing the vehicle’s overall performance.

Basic Concepts of Throttle Shafts

A throttle shaft is a mechanical component within an engine that regulates the flow of air and fuel into the combustion chamber. It operates in conjunction with the throttle valve, which opens and closes to control the amount of air entering the engine. The throttle shaft’s movement is typically linked to the accelerator pedal, allowing the driver to adjust engine speed and power as needed. This interaction is important for balancing fuel efficiency with performance demands ¹.

Purpose of the Cummins 3006350 Throttle Shaft

The Cummins 3006350 Throttle Shaft serves to control engine speed and power output by regulating the airflow into the engine. When the driver presses the accelerator, the throttle shaft moves, opening the throttle valve and allowing more air (and consequently, more fuel) into the engine. This increase in air and fuel results in higher engine revolutions per minute (RPM) and greater power output. Conversely, releasing the accelerator causes the throttle shaft to move in the opposite direction, reducing airflow and engine speed ².

Key Features of the Cummins 3006350 Throttle Shaft

The Cummins 3006350 Throttle Shaft is characterized by several design elements that enhance its performance and reliability. These include precision machining for smooth operation, durable materials to withstand high stress and temperature environments, and a design that ensures accurate throttle response. These features contribute to the shaft’s ability to provide consistent engine performance under varying conditions ³.

Benefits of Using the Cummins 3006350 Throttle Shaft

Utilizing the Cummins 3006350 Throttle Shaft offers several advantages. Its design contributes to improved engine efficiency by ensuring precise control over air and fuel intake. The durability of the materials used in its construction means it can withstand the rigors of commercial truck operation, reducing the need for frequent replacements. Additionally, its design facilitates easier maintenance, allowing for quicker troubleshooting and repair when issues arise.

Installation and Integration

Installing the Cummins 3006350 Throttle Shaft involves several steps to ensure proper integration with the engine system. It is important to follow manufacturer guidelines for compatibility with specific engine models to ensure optimal performance. The installation process includes aligning the shaft with the throttle valve, securing it in place, and testing its operation to confirm smooth and accurate throttle response. Careful attention to these steps helps in achieving seamless integration with the existing engine system.

Troubleshooting Common Issues

Common issues with throttle shafts can include sticking, uneven throttle response, or complete failure to operate. These problems may arise from wear and tear, contamination, or mechanical damage. Addressing these issues involves inspecting the shaft for signs of damage, cleaning or lubricating moving parts as necessary, and replacing worn or damaged components. Regular maintenance and prompt attention to any signs of trouble can help maintain optimal performance.

Maintenance Tips

Regular maintenance is key to ensuring the longevity and efficient operation of the Cummins 3006350 Throttle Shaft. This includes periodic inspection for wear or damage, cleaning to remove any contaminants that could affect performance, and lubrication of moving parts to ensure smooth operation. Following the manufacturer’s recommended maintenance schedule and guidelines can help prevent issues and extend the component’s lifespan.

Cummins: A Brief Overview

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 quality, reliability, and innovation in the commercial truck industry. The company’s product range includes a variety of engines and components designed to meet the demanding requirements of commercial vehicles, ensuring optimal performance and efficiency.

Throttle Shaft Compatibility with Cummins Engines

The Cummins Throttle Shaft part number 3006350 is designed to fit a variety of Cummins engines, ensuring smooth and efficient operation. This part is integral to the engine’s throttle control system, facilitating the regulation of engine speed and power output.

K-Series Engines

The Throttle Shaft part number 3006350 is compatible with the following K-Series engines:

• K19
• K38
• K50

These engines are known for their robust design and are commonly used in various industrial and commercial applications.

L-Series Engines

For the L-Series engines, the part number 3006350 fits the:

• L10 MECHANICAL

This engine is recognized for its reliability and is often used in heavy-duty applications.

M-Series Engines

The M-Series engines that are compatible with the Throttle Shaft part number 3006350 include:

• M11 CELECT PLUS
• M11 MECHANICAL

Both of these engines are designed for high performance and are widely used in both on-highway and off-highway applications.

N-Series Engines

The N-Series engine that fits this throttle shaft is:

• N14 MECHANICAL

This engine is known for its durability and is often used in heavy-duty trucking and construction equipment.

NH/NT Series Engines

The Throttle Shaft part number 3006350 is also compatible with the:

• NH/NT 855

This engine is designed for heavy-duty applications and is known for its power and reliability.

QSK Series Engines

For the QSK Series engines, the part number 3006350 fits the:

• QSK19 CM500

This engine is designed for high-performance applications and is commonly used in various industrial and commercial sectors.

V-Series Engines

The V-Series engines that are compatible with the Throttle Shaft part number 3006350 include:

• V28
• V903

These engines are known for their power and efficiency and are often used in heavy-duty applications.

By ensuring that the Throttle Shaft part number 3006350 is correctly matched with the appropriate engine, users can maintain optimal performance and reliability of their equipment.

Role of Part 3006350 Throttle Shaft in Engine Systems

The Throttle Shaft, identified by part number 3006350, is integral to the operation of various engine systems, particularly those involving fuel management and control. Its role can be observed in the following components:

• Aftercooler Variable Speed Hydraulic Assembly: The Throttle Shaft aids in modulating the hydraulic pressure within this assembly, ensuring efficient cooling and regulation of air temperature post-compression.
• Body and Fuel Pump: Within the body of the fuel pump, the Throttle Shaft helps in adjusting the fuel delivery rate, ensuring that the engine receives the appropriate amount of fuel under varying operational conditions.
• Fuel Injection Pump and Fuel Pump AFC: In these systems, the Throttle Shaft is responsible for fine-tuning the fuel injection timing and quantity, directly impacting engine performance and efficiency.
• Fuel Pump Aftercooler Body: Here, the Throttle Shaft assists in managing the fuel flow through the aftercooler, optimizing the fuel’s temperature and pressure before it is injected into the combustion chamber.
• Fuel Pump Front Cover and Fuel Pump Mounting: The Throttle Shaft interacts with these components to maintain the structural integrity and operational alignment of the fuel pump, ensuring consistent fuel delivery.
• Governor Cover and Non-AFC Auto FP/Gov. Sump: In these governor-related components, the Throttle Shaft plays a part in controlling the engine’s speed by adjusting the fuel supply in response to load changes.
• Non-AFC VS FP/Gov. Sump and Non-AFC VS FP/WW Sump: Within these sump configurations, the Throttle Shaft helps in managing the fuel return and overflow, contributing to the overall fuel system’s stability and efficiency.
• Throttle Control: Directly linked to the throttle control mechanism, the Throttle Shaft translates the driver’s input into precise fuel delivery adjustments, enhancing drivability and responsiveness.

In summary, the Throttle Shaft (part 3006350) is a key component in various fuel system configurations, playing a significant role in modulating fuel delivery, managing hydraulic pressures, and ensuring engine performance across different operational scenarios.

Conclusion

The Cummins 3006350 Throttle Shaft is a critical component in the efficient operation of commercial truck engines. Its design and features contribute to precise control over engine speed and power output, enhancing overall vehicle performance. Regular maintenance and proper installation are essential to ensure the longevity and reliability of this part. By understanding its function and importance, vehicle owners and technicians can better maintain and optimize the performance of their engines.