3074472
Pressure Sensing Tube
Cummins®

Introduction

The Cummins 3074472 Pressure Sensing Tube is a component designed for use in commercial trucks. It serves a specific function within the engine management system, contributing to the overall performance and efficiency of the vehicle. Understanding its purpose and operation is key to maintaining and optimizing truck performance.

Basic Concepts of Pressure Sensing Tubes

Pressure sensing tubes are components used in various systems to measure and transmit pressure data. They function by connecting to pressure sensors, which convert physical pressure into an electrical signal. This signal is then used by the system’s control unit to make adjustments and ensure optimal operation. In automotive applications, these tubes play a role in monitoring and regulating engine performance, fuel efficiency, and emissions ¹.

Purpose of the Cummins 3074472 Pressure Sensing Tube

The Cummins 3074472 Pressure Sensing Tube is integral to the engine management system of commercial trucks. It is responsible for accurately measuring pressure within the system, which is crucial for the engine control unit (ECU) to make precise adjustments. This component ensures that the engine operates within specified parameters, contributing to efficient fuel consumption and reduced emissions ².

Key Features

The Cummins 3074472 Pressure Sensing Tube is characterized by several key features. It is constructed from durable materials to withstand the harsh conditions within a truck’s engine compartment. The design includes precise fittings and connections to ensure accurate pressure readings. Additionally, technological advancements in its construction enhance its reliability and performance over time ³.

Benefits

The use of the Cummins 3074472 Pressure Sensing Tube offers several benefits. It contributes to improved engine performance by ensuring that the ECU receives accurate pressure data. This leads to optimized fuel efficiency, as the engine can operate more efficiently. Furthermore, the reliable operation of this component supports the overall durability and longevity of the engine system.

Installation Process

Installing the Cummins 3074472 Pressure Sensing Tube requires careful attention to detail. The process involves disconnecting the old tube, ensuring the area is clean and free from debris, and then securely attaching the new tube. Proper tools and precautions, such as using the correct torque specifications for fittings, are necessary to ensure a successful installation.

Common Issues and Troubleshooting

Common issues with pressure sensing tubes can include leaks, inaccurate readings, or physical damage. Troubleshooting these problems involves checking connections for tightness, inspecting the tube for signs of wear or damage, and ensuring that the pressure sensor is functioning correctly. Solutions may range from simple re-tightening of connections to replacement of the tube or sensor.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins 3074472 Pressure Sensing Tube, regular maintenance is recommended. This includes periodic inspection for signs of wear or damage, cleaning the tube and its connections to remove any buildup, and verifying that all connections are secure. Adhering to these maintenance practices helps prevent issues and ensures the component continues to function effectively.

Cummins 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 is committed to innovation and sustainability in the automotive industry. Their product range includes engines and components for on-highway, off-highway, and stationary applications, demonstrating a comprehensive approach to powering the world.

Compatibility with Cummins Engines

The Pressure Sensing Tube, part number 3074472, manufactured by Cummins, is a critical component in several of their engine models. This part is designed to accurately measure and transmit pressure data, which is essential for the optimal performance and safety of the engines. Below is a detailed overview of its compatibility with specific Cummins engines:

G855 and NH/NT 855 Engines

The Pressure Sensing Tube is integral to the G855 and NH/NT 855 engines. These engines are known for their robust design and high performance, often used in heavy-duty applications. The part ensures that the engine control unit (ECU) receives precise pressure readings, which are crucial for maintaining engine efficiency and preventing potential failures. The integration of this part in these engines helps in monitoring and regulating various pressure-related parameters, ensuring smooth operation.

N14 MECHANICAL Engine

In the N14 MECHANICAL engine, the Pressure Sensing Tube plays a vital role in the engine’s operational integrity. This engine is renowned for its durability and reliability, commonly used in various industrial and transportation sectors. The part’s role in this engine is to provide accurate pressure data to the ECU, which is essential for the engine’s performance and longevity. The precise measurements help in fine-tuning the engine’s operation, leading to better fuel efficiency and reduced wear and tear.

Common Features Across Engines

While the Pressure Sensing Tube is used across different engine models, its function remains consistent. It is designed to withstand the harsh operating conditions of these engines, ensuring longevity and reliability. The part is engineered to provide accurate and consistent pressure readings, which are critical for the engine’s control systems to make necessary adjustments for optimal performance. Its compatibility across the G855, NH/NT 855, and N14 MECHANICAL engines highlights its versatility and importance in maintaining engine health and efficiency.

Role in Engine Systems

The Cummins 3074472 Pressure Sensing Tube is an integral component in the monitoring and regulation of various engine systems. It is specifically designed to interface with the Lubricating Oil Pump and the Auxiliary Pump systems, ensuring optimal performance and safety.

Integration with Lubricating Oil System

In the Lubricating Oil System, the Pressure Sensing Tube is connected to the Lubricating Oil Pump. Its primary function here is to measure the pressure of the lubricating oil as it is circulated through the engine. This data is vital for maintaining the correct oil pressure, which is essential for the proper lubrication of moving parts within the engine. The tube feeds this pressure data to the engine’s control system, allowing for real-time adjustments to the oil flow and pressure as needed.

Role in Auxiliary Pump System

When integrated with the Auxiliary Pump, the Pressure Sensing Tube plays a similar role. It monitors the pressure of the oil being pumped by the auxiliary system, which is often used for additional lubrication needs or for specific engine components that require a separate oil supply. This ensures that the auxiliary system operates within its designed parameters, contributing to the overall efficiency and longevity of the engine.

Interaction with Base Parts and EBM Pump

The Pressure Sensing Tube also works in conjunction with the Base Parts of the engine and the EBM (Electrically Driven Boost Module) Pump. In these systems, it helps in maintaining the correct pressure levels, which is particularly important in high-performance or high-stress engine environments. The data from the tube assists in fine-tuning the operation of these components, leading to improved engine performance and reliability.

Conclusion

Overall, the Cummins 3074472 Pressure Sensing Tube is a key player in the engine’s oil management system. By providing accurate and timely pressure readings, it enables the engine’s control systems to make informed decisions about oil flow and pressure, ultimately contributing to the engine’s efficiency, performance, and longevity.