4984664
Pressure Switch
Cummins®

Introduction

The Cummins 4984664 Pressure Switch is designed to monitor and regulate pressure within commercial truck systems. It ensures pressure levels remain within the desired range, contributing to efficient and safe vehicle operation. This switch is vital for maintaining the performance and reliability of the truck’s systems.

Basic Concepts of Pressure Switches

A pressure switch opens or closes an electrical circuit in response to a specific pressure threshold. It uses a diaphragm or piston that moves with pressure changes. When pressure reaches a predetermined level, the diaphragm or piston activates a mechanism that either opens or closes the electrical contacts, controlling the operation of connected systems. Pressure switches are used in various applications, including HVAC systems, hydraulic systems, and automotive applications, to monitor and regulate pressure ¹.

Role of the 4984664 Pressure Switch in Truck Operation

The Cummins 4984664 Pressure Switch monitors pressure within the truck’s systems, ensuring pressure levels are maintained within safe and efficient operating ranges. It activates or deactivates certain functions based on pressure readings, contributing to the overall performance and safety of the truck.

Key Features

The Cummins 4984664 Pressure Switch features a robust design and high-quality materials. It is constructed to withstand the demanding conditions of commercial truck operations. The switch includes a durable housing, precise pressure sensing mechanism, and reliable electrical contacts, enhancing its performance and ensuring long-term durability.

Benefits of Using the 4984664 Pressure Switch

Using the Cummins 4984664 Pressure Switch contributes to improved system efficiency by maintaining pressure levels within the desired range. This leads to enhanced performance and reliability of the truck’s systems. Additionally, the switch helps prevent potential issues arising from pressure fluctuations, reducing the risk of system failures and associated costs.

Installation and Integration

Proper installation and integration of the Cummins 4984664 Pressure Switch into a truck’s system are crucial for its effective operation. The installation process involves connecting the switch to the appropriate pressure points within the system and ensuring that the electrical connections are secure. It is important to follow the manufacturer’s guidelines and recommendations to ensure proper integration and functionality.

Troubleshooting Common Issues

Common issues associated with the Cummins 4984664 Pressure Switch may include inaccurate pressure readings, failure to activate or deactivate functions, or electrical contact problems. Troubleshooting these issues involves checking the pressure sensing mechanism, ensuring proper electrical connections, and verifying that the switch is correctly installed and integrated into the system. Diagnostic tips and potential solutions can be found in the manufacturer’s documentation.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins 4984664 Pressure Switch, regular maintenance is recommended. This includes periodic checks of the pressure sensing mechanism, electrical connections, and overall condition of the switch. Cleaning the switch and its surroundings, as well as addressing any signs of wear or damage, can help maintain its functionality. Following the manufacturer’s maintenance guidelines will contribute to the switch’s reliable operation.

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 has established a strong reputation in the commercial truck industry for producing high-quality and reliable products. The company offers a wide range of products and services designed to meet the diverse needs of its customers, contributing to the efficiency and performance of commercial vehicles ².

Cummins Pressure Switch 4984664 Compatibility with Engine Models

The Cummins Pressure Switch 4984664 is compatible with several Cummins engine models, including:

• K19
• QSK19 CM2350
• K114
• QSK19 CM500
• QSK19 CM850 MCRS

These engines share a common requirement for reliable pressure monitoring. The 4984664 pressure switch is engineered to seamlessly integrate with these engines, providing consistent and accurate pressure readings. This compatibility ensures that the engine operates within optimal parameters, enhancing performance and longevity.

For the K19 and K114 engines, the pressure switch maintains the balance between fuel efficiency and power output. In the QSK19 CM2350, QSK19 CM500, and QSK19 CM850 MCRS models, the switch is integral to the engine’s ability to handle higher loads and pressures, ensuring reliable performance under demanding conditions.

By ensuring that the pressure switch is correctly installed and functioning, operators can maintain the integrity of their engine systems, preventing potential issues that could arise from pressure fluctuations. This compatibility underscores the importance of using genuine Cummins parts for maintenance and repairs, ensuring that the engine continues to operate at peak efficiency.

Role of Part 4984664 Pressure Switch in Engine Systems

The Part 4984664 Pressure Switch is an integral component in various engine systems, ensuring optimal performance and safety. Its role can be observed in the following systems:

Accessories

In accessory systems, the pressure switch monitors pressure levels within the system. It ensures that accessories receive the appropriate pressure for efficient operation, thereby enhancing the overall performance of the engine.

Air Starting

For air starting systems, the pressure switch regulates air pressure. It ensures that the air pressure is within the required limits before the engine starts, thus preventing potential damage to the engine components.

Connection Bracket

When integrated with a connection bracket, the pressure switch helps maintain the structural integrity of the system. It ensures that the pressure within the system is consistent, which is essential for the proper functioning of the connection bracket and the overall engine system.

Motor

In motor systems, the pressure switch monitors pressure levels. It ensures that the motor operates within safe pressure limits, thus enhancing the longevity and efficiency of the motor.

Starting

During the starting phase of the engine, the pressure switch ensures that pressure levels are optimal. This is essential for a smooth and efficient start, reducing wear and tear on the engine components.

Plumbing

In plumbing systems, the pressure switch regulates pressure within the pipes. This is vital for preventing leaks and ensuring that the plumbing system operates efficiently.

Engine Oil Primer

For the engine oil primer, the pressure switch ensures that oil pressure is within the required limits. This is essential for the proper lubrication of the engine components, thus enhancing the overall performance and longevity of the engine.

Prelube Starter

In prelube starter systems, the pressure switch ensures that oil pressure is optimal before the engine starts. This is vital for the proper lubrication of the engine components, thus enhancing the overall performance and longevity of the engine.

Pre-lube

For pre-lube systems, the pressure switch ensures that oil pressure is within the required limits. This is essential for the proper lubrication of the engine components, thus enhancing the overall performance and longevity of the engine.

Conclusion

The Cummins 4984664 Pressure Switch is a critical component in maintaining the efficiency and safety of commercial truck systems. Its robust design, precise pressure sensing mechanism, and reliable electrical contacts ensure long-term durability and performance. Proper installation, regular maintenance, and the use of genuine Cummins parts are essential for optimal operation and to prevent potential issues arising from pressure fluctuations.