3935647
Accessory Drive Shaft
Cummins®

Introduction

The Accessory Drive Shaft 3935647 is a component manufactured by Cummins, a well-established name in the commercial truck industry. This drive shaft is integral to the efficient operation of commercial trucks, facilitating the transfer of power to various auxiliary systems within the vehicle.

Basic Concepts of Accessory Drive Shafts

An accessory drive shaft is a mechanical component that transmits rotational force from the engine to various auxiliary systems in a vehicle. It interfaces with components such as the alternator, power steering pump, and air conditioning compressor, enabling these systems to function. The drive shaft is typically connected to the engine’s crankshaft and operates in synchronization with the engine’s rotational speed ⁴.

Role of Accessory Drive Shaft 3935647 in Truck Operation

The Accessory Drive Shaft 3935647 plays a specific role in the operation of commercial trucks by powering and supporting various accessory systems. It ensures that critical components such as the alternator, which generates electrical power, and the air conditioning compressor, which regulates cabin temperature, receive the necessary mechanical force to operate efficiently. This drive shaft contributes to the overall functionality and performance of the truck by ensuring that these systems operate in harmony with the engine ¹.

Key Features of Accessory Drive Shaft 3935647

The Accessory Drive Shaft 3935647 is characterized by several key features that enhance its performance and durability. It is constructed from high-quality materials that provide strength and resistance to wear. The design incorporates precision engineering to ensure smooth operation and efficient power transmission. Additionally, it may feature unique characteristics such as balanced weight distribution to minimize vibrations and optimized geometry for enhanced performance ³.

Benefits of Using Accessory Drive Shaft 3935647

Utilizing the Accessory Drive Shaft 3935647 offers several advantages. It contributes to improved efficiency by ensuring that power is transmitted effectively to the truck’s accessory systems. The drive shaft’s reliable construction enhances the overall reliability of the truck, reducing the likelihood of mechanical failures. Furthermore, it may offer performance enhancements by supporting the efficient operation of critical systems, thereby contributing to the truck’s overall performance ¹.

Installation and Integration

Proper installation and integration of the Accessory Drive Shaft 3935647 within a truck’s engine compartment are crucial for its successful operation. It is important to follow manufacturer guidelines to ensure that the drive shaft is correctly aligned and securely fastened. Consideration should be given to any prerequisites or specific requirements for integration, such as ensuring compatibility with existing components and systems ².

Maintenance and Troubleshooting

To ensure the longevity and optimal performance of the Accessory Drive Shaft 3935647, regular maintenance is recommended. This may include periodic inspections for signs of wear or damage, lubrication of moving parts, and replacement of worn components. Troubleshooting common issues such as unusual noises or vibrations may involve checking for proper alignment, inspecting for damage, and ensuring that all connections are secure ¹.

Cummins: A Brief Overview

Cummins Inc. is a renowned manufacturer in the commercial truck industry, known for its wide range of products and strong reputation for quality and reliability. With a history of innovation and commitment to excellence, Cummins has established itself as a trusted provider of engine and powertrain solutions for commercial vehicles. The company’s product range includes engines, transmissions, and aftermarket parts, all designed to meet the demanding requirements of the commercial truck industry ².

Accessory Drive Shaft 3935647 Compatibility with Cummins Engines

The Accessory Drive Shaft part number 3935647, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part plays a role in the engine’s operation by connecting the crankshaft to the accessory drive components, ensuring the proper functioning of various engine accessories.

Compatible Engines

• 4B3.9
• 6B5.9
• 6C8.3
• B4.5
• B5.9 G
• C8.3 G
• ISB CM550
• ISC CM554
• ISL CM554
• QSB3.9 30 CM550
• QSB3.9 CM2880 B138
• QSB4.5 CM2250 EC
• QSB4.5 CM850 (CM2850)
• QSB5.9 30 CM550
• QSB5.9 44 CM550
• QSB5.9 CM2880 B139
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850 (CM2850)
• QSB6.7 M CM2250
• QSB7 CM2880 B117
• QSC8.3 CM554
• QSC8.3 CM850 (CM2850)
• QSC9 CM2250/QSL9 CM2250

These engines, ranging from smaller displacement models like the 4B3.9 and 6B5.9 to larger displacement models such as the QSB6.7 and QSC9, all utilize the Accessory Drive Shaft 3935647. This part is engineered to meet the specific requirements of each engine model, ensuring compatibility and reliability.

Role of Part 3935647 Accessory Drive Shaft in Engine Systems

The Accessory Drive Shaft, specifically part 3935647, is integral to the efficient operation of various engine components. It serves as a vital link in the power transmission chain, ensuring that energy generated by the engine is effectively distributed to auxiliary systems.

Interaction with the Drive System

The Accessory Drive Shaft interfaces directly with the engine’s drive system. It transfers rotational force from the crankshaft to various accessories, enabling them to function properly. This shaft is designed to handle significant torque, ensuring smooth and reliable operation of connected components ⁴.

Front Gear Train Accessory

In engines equipped with a front gear train accessory, the Accessory Drive Shaft plays a key role. It connects to the front gear train, which in turn drives accessories such as the alternator, power steering pump, and air conditioning compressor. The shaft’s precise engineering ensures minimal power loss and maximum efficiency in accessory operation ³.

Hydraulic Pump Adapter and Kit

When integrated with a hydraulic pump adapter or a hydraulic pump adapter kit, the Accessory Drive Shaft facilitates the operation of hydraulic systems within the engine. It provides the necessary drive to the hydraulic pump, allowing for the efficient circulation of hydraulic fluid. This is essential for systems that rely on hydraulic pressure for operation, such as certain types of engine controls or auxiliary systems ³.

Hydraulic Pump Drive

The Accessory Drive Shaft is also a component in the hydraulic pump drive system. It ensures that the hydraulic pump receives consistent and adequate power, which is crucial for the pump’s performance. This, in turn, affects the overall efficiency and reliability of the hydraulic systems within the engine ³.

Mounting to Front and Rear Gear Train Accessories

The shaft is designed for mounting to both front and rear gear train accessories. This versatility allows it to be used in a variety of engine configurations. Whether mounted to the front or rear gear train, the Accessory Drive Shaft ensures that accessories are driven efficiently, contributing to the overall performance and reliability of the engine system ⁴.

Conclusion

In summary, the Accessory Drive Shaft 3935647 is a key component in the engine’s accessory drive system. Its role in transferring power to various accessories and systems is essential for the efficient and reliable operation of the engine. Proper installation, maintenance, and understanding of its compatibility with various Cummins engines are crucial for maximizing its performance and longevity.

References