70836
Throttle Lever Plunger
Cummins®

Introduction

The Throttle Lever Plunger 70836, manufactured by Cummins, is a critical component in the automotive and heavy-duty truck industry. This part is essential for the precise control of engine functions, contributing to performance and efficiency in commercial trucks.

Function and Operation

The Throttle Lever Plunger operates within the engine system by interacting with the throttle lever and accelerator pedal. When the accelerator pedal is pressed, it moves the throttle lever, which in turn actuates the plunger. This mechanical action translates the driver’s input into a signal that the engine uses to adjust the throttle, thereby controlling the fuel supply and engine speed.

Purpose of the Throttle Lever Plunger

The primary role of this Cummins part is to control the engine’s throttle. By regulating the throttle, it manages the fuel supply and engine speed, ensuring that the engine operates within the desired parameters for optimal performance and efficiency.

Key Features

The Throttle Lever Plunger 70836 is designed with several key characteristics that enhance its performance and durability. It is constructed from high-quality materials to withstand the rigors of commercial truck operation. Its design ensures precise movement and reliable operation, contributing to the overall efficiency of the engine system.

Benefits

The advantages provided by the Throttle Lever Plunger include improved engine responsiveness and precise control over engine speed. These benefits contribute to the overall performance and efficiency of the vehicle, ensuring that the engine operates smoothly and effectively under various driving conditions.

Installation and Compatibility

Proper installation of the Throttle Lever Plunger is crucial for ensuring its effective operation. Specific requirements and considerations must be taken into account to ensure compatibility with various engine models. Following manufacturer guidelines during installation will help maintain the integrity and performance of the component.

Maintenance and Troubleshooting

To ensure optimal performance, regular maintenance of the Throttle Lever Plunger is recommended. This includes periodic inspection for wear and tear, and cleaning to remove any debris that may affect its operation. Common issues may include sticking or misalignment, which can often be resolved through careful inspection and adjustment.

Safety Considerations

When working with the Throttle Lever Plunger, it is important to adhere to safety precautions and best practices. This includes proper handling of the component, following inspection procedures, and strictly adhering to manufacturer guidelines to ensure safe and effective operation.

Cummins Overview

Cummins Inc. is a renowned manufacturer in the automotive industry, known for its high-quality components and commitment to innovation. With a rich history and a strong reputation, Cummins continues to produce reliable and efficient parts that meet the demanding requirements of commercial truck operations ¹.

Compatibility with Cummins Engines

The Throttle Lever Plunger part number 70836 is compatible with a variety of Cummins engines, including the K19, K38, K50, L10 MECHANICAL, M11 CELECT PLUS, M11 MECHANICAL, N14 MECHANICAL, NH/NT 855, V28, and V903. This part ensures that the throttle operation is smooth and responsive, contributing to the engine’s overall performance and reliability.

Role of Throttle Lever Plunger in Engine Systems

The Throttle Lever Plunger, identified as part 70836, is an integral component in the orchestration of various engine systems, ensuring precise control and efficient operation. Its role is particularly significant in the following systems:

Fuel Pump and Calibration Systems

In systems such as the Fuel Pump & Calibration Code and the Fuel Pump AFC-VS, the Throttle Lever Plunger works in conjunction with the throttle lever to modulate fuel delivery. It translates the driver’s input into a signal that adjusts the fuel pump’s output, ensuring that the engine receives the appropriate amount of fuel for the current demand ².

Variable Speed and Aftercooler Systems

Within the AFC-VS/Road Speed and Aftercooler - Variable Speed systems, the Throttle Lever Plunger plays a key role in adjusting the engine’s response to changes in load and speed. By modulating the fuel delivery in response to the throttle position, it helps in optimizing the engine’s performance, especially under varying road speeds and load conditions ³.

Governor and Fuel Pump Systems

In the Fuel and W-W Governor Pump and Fuel and W-W Pump systems, the Throttle Lever Plunger is essential for maintaining the correct fuel-air mixture. It ensures that the governor can accurately adjust the fuel supply in response to changes in engine load, thereby maintaining optimal engine performance and fuel efficiency.

Emissions and Rebuild Kits

When integrated with an Emissions Rebuild Kit, the Throttle Lever Plunger contributes to the kit’s goal of reducing emissions by ensuring that the fuel delivery is finely tuned to the engine’s needs. This precise control helps in minimizing excess fuel consumption and, consequently, reducing emissions.

Fuel Tubing and Shutoff Valve

The Throttle Lever Plunger also interacts with the Fuel Tubing and Fuel Shutoff Valve to ensure that fuel delivery is not only precise but also safe. By accurately modulating the fuel flow in response to the throttle position, it helps prevent fuel leaks and ensures that the fuel shutoff valve can effectively cut off fuel supply when necessary, enhancing both safety and efficiency.

Conclusion

In summary, the Throttle Lever Plunger (part 70836) is a versatile component that plays a significant role in various engine systems. Its ability to accurately translate throttle position into fuel delivery adjustments makes it a key player in ensuring engine performance, efficiency, and compliance with emissions standards.