3006343
Throttle Lever Stop
Cummins®

Introduction

The Throttle Lever Stop, part number 3006343, is a component manufactured by Cummins, a prominent name in the commercial truck industry. This part is designed to control the throttle lever’s maximum position, influencing engine speed and performance. Understanding the function and importance of throttle lever stops is essential for maintaining optimal engine operation in commercial trucks.

Basic Concepts of Throttle Lever Stops

A throttle lever stop is a mechanical component that limits the movement of the throttle lever. By restricting the lever’s travel, it controls the maximum amount of fuel that can be delivered to the engine, thereby regulating engine speed. This mechanism is vital for maintaining safe and efficient engine operation, preventing over-revving, and ensuring that the engine operates within its designed parameters ¹.

Purpose of the 3006343 Throttle Lever Stop

The 3006343 Throttle Lever Stop is specifically engineered to limit the maximum throttle position in a truck’s engine. This limitation helps prevent the engine from reaching speeds that could lead to damage or unsafe operation. By ensuring that the throttle does not exceed a certain point, the 3006343 contributes to maintaining engine integrity and performance, providing a safeguard against potential over-revving scenarios.

Key Features

The 3006343 Throttle Lever Stop is constructed with high-quality materials to ensure durability and reliable performance. Its design incorporates features that enhance its function, such as precise engineering to fit snugly into the engine system and materials that resist wear and corrosion. These attributes contribute to the part’s effectiveness in controlling throttle operation and ensuring long-term reliability.

Benefits

Utilizing the 3006343 Throttle Lever Stop offers several advantages. It provides improved engine control by ensuring that the throttle does not exceed safe limits, which can lead to enhanced safety during operation. Additionally, by regulating throttle operation, it may contribute to an increase in engine lifespan, as it helps prevent stress and wear that can result from over-revving.

Installation and Compatibility

Proper installation of the 3006343 Throttle Lever Stop is crucial for ensuring its effectiveness. While specific installation guidelines and compatible engine models will be provided separately, it is generally recommended to follow manufacturer instructions closely to ensure correct fitting and function. Any prerequisites for installation, such as necessary tools or preparatory steps, should also be adhered to for optimal performance.

Troubleshooting and Maintenance

Common issues with throttle lever stops can include wear and tear, misalignment, or damage from debris. Regular inspection and maintenance can help identify these issues early, allowing for timely repairs or replacements. Maintenance tips include checking for signs of wear, ensuring proper alignment, and keeping the area around the throttle lever stop clean to prevent debris accumulation.

Cummins: A Brief Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its wide range of engine components and systems. With a history of innovation and a commitment to quality, Cummins has established a reputation for producing reliable and high-performance parts. The company’s dedication to advancing engine technology is evident in its product offerings, which are designed to meet the demanding requirements of commercial trucking.

Compatibility with Cummins Engines

This Cummins part is designed to be compatible with a variety of Cummins engines, ensuring precise control and reliable operation across different models. It is integral to the throttle mechanism, providing a critical stop point for the throttle lever, which helps maintain consistent engine performance and safety.

For the K-Series engines, the Throttle Lever Stop is compatible with the K19, K38, and K50 models. These engines are known for their robust design and are often used in heavy-duty applications, where precise throttle control is essential.

In the L-Series, the part fits the L10 MECHANICAL engine, which is recognized for its efficiency and durability in various industrial applications.

The M-Series engines, specifically the M11 CELECT PLUS and M11 MECHANICAL, also utilize the Throttle Lever Stop. These engines are equipped with advanced electronic controls and are widely used in both on-highway and off-highway vehicles.

For the N-Series, the N14 MECHANICAL engine is designed to work with this part, offering reliable performance in demanding environments.

The NH/NT 855 engine, a part of the Cummins NT855 series, is another model that benefits from the Throttle Lever Stop, ensuring smooth and controlled operation.

In the QSK-Series, the QSK19 CM500 engine is compatible with this part, providing enhanced performance and efficiency in heavy-duty applications.

Lastly, the V-Series engines, including the V28 and V903, also incorporate the Throttle Lever Stop, ensuring optimal throttle control and engine performance across various uses.

Role of Throttle Lever Stop in Engine Systems

The Throttle Lever Stop, identified as part 3006343, is an integral component in the regulation and control of various engine systems. Its primary function is to limit the travel of the throttle lever, ensuring that the engine operates within safe and efficient parameters.

In conjunction with the AFC-VS Fuel Pump/TMD and AFC-VS/TMD systems, the Throttle Lever Stop helps maintain consistent fuel delivery by preventing over-throttling, which could lead to excessive fuel consumption and potential engine damage.

When integrated with the EBM: Pump and Base Fuel systems, this component ensures that the fuel supply remains stable and within the desired range, contributing to optimal engine performance and fuel efficiency.

In emissions control systems, such as the Emissions Rebuild Kit and FP & Gov Sump, the Throttle Lever Stop plays a role in ensuring that the engine meets regulatory standards by preventing unauthorized increases in throttle that could lead to higher emissions.

For systems like the Fuel Aftercooler Pump and Fuel and W-W Governor Pump, the Throttle Lever Stop ensures that the pump operations are within specified limits, thereby enhancing the reliability and longevity of these components.

In the Fuel Transfer Assembly Pump and Master Fuel Pump systems, this part helps in maintaining the correct pressure and flow rates, which are essential for the efficient operation of the engine.

Additionally, in systems such as the Non-AFC Auto FP/Gov. Sump and Non-AFC VS FP/WW Sump, the Throttle Lever Stop contributes to the smooth and controlled operation of the fuel governance mechanisms, ensuring that the engine runs smoothly under varying conditions.

Overall, the Throttle Lever Stop is a key component in maintaining the balance and efficiency of various engine systems, playing a significant role in the overall performance and reliability of the engine.

Conclusion

The Throttle Lever Stop 3006343 by Cummins is a critical component in the regulation and control of engine systems. Its role in limiting throttle lever travel ensures that engines operate within safe and efficient parameters, contributing to enhanced safety, performance, and longevity of the engine. Proper installation, regular maintenance, and understanding its compatibility with various Cummins engines are essential for maximizing the benefits of this part.