3003308
Governor Lever
Cummins®

Introduction

The Cummins 3003308 Governor Lever is a component designed for use in heavy-duty trucks. It plays a role in the engine’s operation by regulating engine speed and ensuring consistent performance under varying load conditions. This lever is integral to the engine management system, contributing to the overall efficiency and reliability of the vehicle.

Basic Concepts of Governor Levers

A governor lever is a mechanical device that modulates engine speed by adjusting the fuel supply in response to changes in load or throttle position. It operates within the engine management system, interacting with the fuel injection pump and other control mechanisms to maintain optimal engine performance. The governor lever ensures that the engine operates within safe and efficient parameters, adapting to the demands placed upon it ¹.

Purpose of the 3003308 Governor Lever

The Cummins 3003308 Governor Lever is specifically designed to control engine speed and maintain consistent performance in heavy-duty trucks. It adjusts the fuel injection timing and quantity based on the engine’s load and speed. This ensures that the engine operates efficiently under a wide range of conditions, from idling to full load.

Key Features

This part is characterized by its robust design and high-quality materials, which contribute to its durability and performance. It features precise machining and tight tolerances to ensure accurate control of engine speed. Additionally, the lever is designed to integrate seamlessly with Cummins engines, providing a reliable and efficient solution for engine management.

Benefits of Using the 3003308 Governor Lever

Utilizing this Cummins part offers several advantages. It provides improved engine control, allowing for more precise management of engine speed and load. This results in enhanced fuel efficiency, as the engine operates more efficiently under varying conditions. Furthermore, the lever contributes to increased reliability, ensuring consistent performance and reducing the likelihood of engine-related issues.

Installation and Integration

Installing the 3003308 Governor Lever involves several steps to ensure proper integration with the engine management system. It is important to follow manufacturer guidelines for compatibility with specific Cummins engines and to ensure that it is correctly aligned and secured. Integration with existing engine management systems may require adjustments to ensure optimal performance.

Troubleshooting and Maintenance

Common issues with the 3003308 Governor Lever may include inaccurate engine speed control or difficulty in adjusting the lever. Diagnostic procedures involve checking for proper alignment, inspecting for wear or damage, and ensuring that all connections are secure. Regular maintenance, such as cleaning and lubricating moving parts, can help ensure optimal performance and longevity of the lever.

Historical Context and Evolution

The development of governor levers has evolved significantly over time, with the introduction of models like the 3003308 by Cummins marking a notable advancement. These levers have been refined to meet the demands of modern heavy-duty trucks, incorporating improvements in design, materials, and functionality to enhance engine performance and reliability.

Cummins Overview

Cummins Inc. is a leading manufacturer of diesel engines, known for its commitment to innovation and quality in the automotive industry. The company has a long history of developing advanced engine components, including governor levers, that contribute to the efficiency, performance, and reliability of heavy-duty trucks. Cummins’ dedication to excellence is evident in its continued investment in research and development, ensuring that its products meet the evolving needs of the industry ².

Governor Lever 3003308 Compatibility with Cummins Engines

The Governor Lever part number 3003308, manufactured by Cummins, is designed to fit into a variety of Cummins engine models. This component plays a role in regulating engine speed by controlling the fuel delivery mechanism. Below is a detailed look at how this governor lever integrates with specific Cummins engines:

K-Series Engines

• K19: The Governor Lever 3003308 is compatible with the K19 engine, ensuring precise control over engine speed and performance.
• K38: This governor lever is also suitable for the K38 engine, providing reliable operation and maintaining optimal engine performance.
• K50: The K50 engine benefits from the precise adjustments offered by the Governor Lever 3003308, ensuring smooth and efficient engine operation.

KTA19GC Engine

• KTA19GC: The Governor Lever 3003308 is engineered to fit the KTA19GC engine, ensuring that the engine’s speed is accurately regulated for various operational needs.

N-Series Engines

• N14 MECHANICAL: This governor lever is compatible with the N14 MECHANICAL engine, providing control over the engine’s fuel delivery and speed.

NH/NT Series Engines

• NH/NT 855: The Governor Lever 3003308 is designed to integrate seamlessly with the NH/NT 855 engine, ensuring that the engine operates at the desired speed and efficiency.

V-Series Engines

• V28: The V28 engine is another model that can utilize the Governor Lever 3003308, ensuring that the engine maintains its operational parameters effectively.

Each of these engines relies on the governor lever to maintain consistent performance and efficiency. The compatibility of the Governor Lever 3003308 across these models underscores its versatility and importance in Cummins’ engine lineup.

Understanding the Role of Part 3003308 Governor Lever in Engine Systems

The Governor Lever, identified by part number 3003308, is an integral component in various engine systems, particularly those utilizing Woodward, Barber-Colman, and American Bosch governors. This lever is designed to interact with several key components to ensure the engine operates within specified parameters.

Interaction with Governors

• Woodward Governor: The Governor Lever works in conjunction with the Woodward Governor to modulate engine speed. It is part of the Woodward Governor Assembly, which may include models like the Woodward 2301 and 2301A. The lever translates mechanical movements into adjustments within the governor, allowing for precise control over engine RPM.
• Barber-Colman Governor: Similarly, when paired with a Barber-Colman Governor, the lever facilitates the regulation of engine speed by interacting with the governor’s mechanical components. This ensures that the engine maintains consistent performance under varying loads.
• American Bosch Governor: The lever also fits within the American Bosch Governor systems, where it plays a role in modulating fuel delivery in response to engine speed changes. This is particularly important in systems where fuel governance is critical for performance and efficiency.

Coupling and Fuel Systems

• Coupling: The Governor Lever often connects to a coupling mechanism, which transmits the lever’s movements to other parts of the governor system. This coupling ensures that the adjustments made by the lever are effectively communicated throughout the system.
• Fuel Pump and Governor: In systems where the fuel pump is integrated with the governor (such as the Fuel and W-W Governor Pump), the lever’s position directly influences fuel delivery. This interaction is vital for maintaining the correct fuel-to-air ratio, which is essential for optimal engine performance.
• Electronic and Hydraulic Governors: The lever can also be found in electronic and hydraulic governor setups. In these systems, the mechanical action of the lever is converted into electronic signals or hydraulic pressure changes, respectively, to achieve the desired engine speed control.

Additional Components

• Governor Sump and Kit Conversion: The Governor Lever may be part of a Governor Sump assembly or included in conversion kits designed to upgrade or modify existing governor systems. These kits often include the lever as a key component for ensuring compatibility and functionality within the new setup.
• Woodward PSG and SG Governors: Specifically, the lever is utilized in Woodward PSG (Primary Speed Governor) and SG (Secondary Governor) systems. These governors require the lever to adjust settings and respond to changes in engine load and speed, ensuring that the engine operates smoothly and efficiently.

In summary, the Governor Lever (part 3003308) is a versatile component that plays a significant role in various governor systems. Its ability to interact with couplings, fuel pumps, and different types of governors makes it an essential part of maintaining engine performance and efficiency.

Conclusion

The Cummins 3003308 Governor Lever is a critical component in the engine management system of heavy-duty trucks. Its role in regulating engine speed and ensuring consistent performance under varying conditions makes it an essential part of maintaining engine efficiency and reliability. Proper installation, regular maintenance, and understanding its interaction with various governor systems are key to maximizing the benefits of this part.