3009512
Accessory Drive Support
Cummins®

Introduction to Accessory Drive Support

The Accessory Drive Support (ADS) is a critical component in commercial truck engines, ensuring the smooth and efficient operation of various engine accessories such as the alternator, water pump, and air conditioning compressor. The ADS maintains the proper alignment and tension of the accessory drive belt, which is essential for the efficient transfer of power from the engine to these components ¹.

Role and Function of the Cummins Accessory Drive Support Part #3009512

The Cummins Accessory Drive Support, part number 3009512, is specifically designed to support and stabilize the accessory drive belt in Cummins engines. This component ensures the correct tension and alignment of the belt, which is crucial for the proper functioning of the engine’s accessories. By maintaining these parameters, it ensures that the alternator charges the battery, the water pump circulates coolant, and the air conditioning compressor operates effectively ².

Importance in Truck Operations

In commercial trucks, the Accessory Drive Support is indispensable. It ensures that all engine accessories receive the necessary power to function correctly, which is vital for the overall performance and reliability of the vehicle. A malfunctioning ADS can lead to belt slippage, reduced efficiency of engine accessories, and potential engine damage. Therefore, maintaining the integrity of the ADS is crucial for the longevity and efficiency of the truck ³.

Troubleshooting and Maintenance

Regular maintenance and timely troubleshooting of the Accessory Drive Support can prevent potential breakdowns and ensure the smooth operation of the truck. Key points to consider include:

1. Visual Inspection: Regularly inspect the ADS for signs of wear, such as cracks, deformation, or excessive wear on the belt. Any visible damage should be addressed immediately.

2. Belt Tension: Check the tension of the accessory drive belt. A loose or overly tight belt can indicate issues with the ADS. The belt should have the correct amount of deflection as specified by the manufacturer.

3. Alignment: Ensure that the ADS is properly aligned with the pulleys. Misalignment can cause the belt to wear unevenly and lead to premature failure.

4. Lubrication: Keep the moving parts of the ADS lubricated to reduce friction and wear. Use the appropriate lubricant as recommended by Cummins.

5. Replacement: If the ADS shows significant wear or damage, it should be replaced promptly. Using genuine Cummins parts ensures compatibility and maintains the performance standards set by the manufacturer.

About Cummins

Cummins is a global power leader and a pioneer in the design and manufacture of engines, engine-related technology, and related parts and services. With a reputation for quality and reliability, Cummins parts are trusted by engineers, mechanics, and fleet operators worldwide. The company’s commitment to innovation and excellence ensures that their parts, including the Accessory Drive Support part number 3009512, meet the highest standards of performance and durability.

Compatibility with Cummins Engines

The Accessory Drive Support, identified by the part number 3009512, is compatible with various Cummins engines, including the K19 and KTA19GC CM558 engines, as well as the QSK19 CM500 and QSK19G engines. This part is designed to ensure the proper alignment and operation of the engine’s accessory drive system, which includes components such as the alternator, water pump, and air conditioning compressor.

Integration with Key Components

The Accessory Drive Support (Part 3009512) is integral to the efficient operation of various engine components. It provides a stable platform for the Accessory Drive system, ensuring that all connected accessories operate smoothly and effectively. Key integrations include:

1. Accessory Drive Pulley: The Accessory Drive Support securely mounts the Accessory Drive Pulley, which is essential for transferring power from the engine to various accessories.

2. Accessory Drive Top Level Assembly Kit and Accessory Top Level Assembly Drive: These assemblies are dependent on the Accessory Drive Support for structural integrity.

3. Block and Cylinder: The Accessory Drive Support is often attached to the engine block or cylinder, providing a stable base for the accessory drive system.

4. Front Gear Train Accessory: In systems where a front gear train is used, the Accessory Drive Support plays a role in maintaining the correct tension and alignment of the gear train.

5. Fuel Pump and Fuel Pump Drive: The support is also involved in the mounting of the Fuel Pump Drive, which is critical for the operation of the Fuel Pump.

6. Non AFC-Auto FP/A.B., Non AFC-Auto FP/B-C, Non AFC-Auto FP/Bosch, Non AFC-Auto Fuel Pump: For engines utilizing non-AFC (Auto Fuel Control) fuel pumps, the Accessory Drive Support provides the necessary mounting points.

7. Non Aftercooler - Auto Electronic Fuel Control: In systems without an aftercooler, the Accessory Drive Support ensures that the Auto Electronic Fuel Control components are properly aligned and supported.

8. Non-AFC Auto Fuel Pump: Similar to other fuel pump configurations, the support ensures that the Non-AFC Auto Fuel Pump is mounted correctly, allowing for reliable operation and consistent performance.

Conclusion

Understanding the role and maintenance of the Cummins Accessory Drive Support part number 3009512 is essential for ensuring the efficient operation of commercial trucks. By adhering to regular maintenance practices and promptly addressing any issues, fleet operators and mechanics can extend the life of their vehicles and maintain optimal performance. Cummins’ dedication to quality and reliability makes their parts a trusted choice for professionals in the industry.