3926702
Spring Hose Clamp
Cummins®

Introduction

The Spring Hose Clamp 3926702, manufactured by Cummins, is a vital component in the commercial truck industry. This clamp is engineered to ensure secure connections and reliable performance in demanding environments.

Basic Concepts of Spring Hose Clamps

Spring hose clamps are mechanical fasteners used to secure hoses to fittings. They consist of a metal band with a built-in spring that provides constant tension, ensuring a tight seal ¹. In automotive applications, these clamps are crucial for maintaining the integrity of fluid and air systems, preventing leaks, and ensuring efficient operation.

Purpose of the 3926702 Spring Hose Clamp in Truck Operation

The 3926702 Spring Hose Clamp secures hoses in critical systems such as fuel, coolant, and air intake. Its application ensures that these systems function correctly, maintaining the flow of necessary fluids and air without interruption. This clamp creates a secure connection that withstands vibrations and temperature fluctuations common in truck operations ².

Key Features

This Cummins part is constructed from high-quality materials, ensuring durability and performance. Its design includes a corrosion-resistant finish, which enhances its longevity in harsh environments. The clamp features a robust spring mechanism that provides consistent tension, ensuring a reliable seal. Additionally, its ease of installation and adjustment makes it a practical choice for both maintenance and new installations.

Benefits

Using the 3926702 Spring Hose Clamp offers several advantages. It provides improved seal integrity, reducing the risk of leaks in critical systems. The clamp’s design allows for easy installation, minimizing downtime during maintenance. Its resistance to corrosion and environmental factors ensures long-term reliability, even in challenging conditions.

Installation Process

To install the 3926702 Spring Hose Clamp, first, ensure the hose and fitting are clean and free of debris. Slide the clamp onto the hose, positioning it over the fitting. Use a clamp plier to tighten the clamp until it achieves the desired tension, ensuring a secure fit without over-tightening, which could damage the hose. Verify the connection by checking for leaks and proper alignment.

Troubleshooting Common Issues

Common issues with spring hose clamps include leaks and improper sealing. To address these, first, inspect the clamp for signs of wear or damage. Ensure the hose and fitting are clean and free of obstructions. If leaks persist, the clamp may need to be retightened or replaced. Regular inspections can help identify and resolve these issues promptly.

Maintenance Tips

Regular maintenance of the 3926702 Spring Hose Clamp involves periodic inspections to check for signs of wear, corrosion, or damage. Clean the clamp and surrounding areas to remove any buildup that could affect performance. If the clamp shows significant wear or if leaks are detected, consider replacement to ensure continued reliability.

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 is renowned for its innovative solutions and commitment to quality. The company’s product range includes engines, powertrains, and aftermarket parts, serving various industries, including commercial trucking, where reliability and performance are paramount.

Compatibility with Cummins Engines

The Spring Hose Clamp part number 3926702 is designed to fit a variety of Cummins engines. This clamp is essential for securing hoses in place, ensuring that they remain tightly fastened and leak-free. Below is a detailed overview of the engines with which this part is compatible.

Compatible Engines

• 6B5.9 Series

  • 6B5.9
  • B5.9 CM2670 B166C
  • B5.9 G
  • B5.9 GAS PLUS CM556
  • B6.7 CM2670 B164C
  • C GAS PLUS CM556
  • QSB4.5 CM2250 EC
  • QSB4.5 CM850 (CM2850)
  • QSB5.9 30 CM550
  • QSB5.9 44 CM550
  • QSB5.9 CM2880 B139

• ISB Series

  • ISB CM2150
  • ISB CM550
  • ISB CM850
  • ISB6.7 CM2250
  • ISB6.7 CM2350 B101
  • ISBE CM800

• QSB Series

  • QSB3.9 30 CM550
  • QSB3.9 CM2880 B138

• Other Cummins Engines

  • 4B3.9
  • 6C8.3
  • C8.3 G
  • G8.3
  • G855
  • K19

The Spring Hose Clamp 3926702 is engineered to provide a reliable and secure fit across these diverse engine models, ensuring that hoses remain firmly attached under various operating conditions. This compatibility makes it a versatile choice for maintenance and repair across multiple Cummins engine types.

Role of Part 3926702 Spring Hose Clamp in Engine Systems

The 3926702 Spring Hose Clamp is an essential component in securing various hoses within engine systems, ensuring efficient operation and preventing leaks. This clamp is utilized across multiple subsystems, each playing a distinct role in the overall functionality of the engine.

Aftercooler and Air Cooler Leak Test Kit

In the aftercooler system, the 3926702 Spring Hose Clamp is employed to secure hoses that transport cooled air to the engine. This ensures a tight seal, preventing any air leaks that could reduce efficiency. Similarly, within the air cooler leak test kit, the clamp maintains the integrity of hoses used for testing, ensuring accurate readings and reliable diagnostics.

Air Crossover Connection and Air Intake Hose

For the air crossover connection, the clamp is vital in joining different sections of the air intake system, allowing for smooth airflow without disruptions. On the air intake hose, it ensures that the connection between the air filter and the engine intake manifold remains secure, which is essential for optimal air-fuel mixture and engine performance.

Fuel Governor and Turbocharger Arrangement

In the arrangement of the fuel governor, the clamp secures hoses that regulate fuel delivery, ensuring consistent pressure and flow. For the turbocharger, it holds hoses that manage the flow of exhaust gases and air, critical for the turbocharger’s operation and the engine’s overall power output.

Engine Cooling System and Expansion Tank

Within the engine cooling system, the 3926702 Spring Hose Clamp is used to secure hoses connecting the radiator, water pump, and other cooling components. This ensures efficient coolant flow, maintaining engine temperature within safe limits. The expansion tank, which accommodates changes in coolant volume due to temperature variations, also relies on these clamps to maintain a secure connection.

Exhaust Manifold and Heat Exchanger

On the exhaust manifold, the clamp secures hoses that route exhaust gases to the catalytic converter and other emission control devices. In the heat exchanger, whether for exhaust gas heat or general heat exchange applications, the clamp ensures that hoses remain firmly in place, facilitating effective heat transfer and system efficiency.

Fuel Control Module and Engine Installation Kit

The fuel control module uses the clamp to secure fuel lines, ensuring precise fuel delivery to the engine. In the engine installation kit, various hoses are clamped to ensure all connections are secure during the installation process, contributing to a smooth and trouble-free setup.

Conclusion

The 3926702 Spring Hose Clamp plays a significant role in maintaining the integrity and efficiency of hose connections across diverse engine systems, from air and fuel management to cooling and exhaust. Its robust design, ease of installation, and compatibility with various Cummins engines make it a reliable choice for ensuring secure and leak-free connections in demanding environments.