3255868
Starting Motor
Cummins®

Introduction

The Cummins 3255868 Starting Motor is a component designed for use in commercial trucks. Its purpose is to initiate engine operation by converting electrical energy into mechanical energy, which is necessary for starting the engine. The significance of this starting motor lies in its ability to ensure reliable engine start-up under various conditions, contributing to the overall efficiency and performance of the vehicle ¹.

Basic Concepts of Starting Motors

Starting motors operate on fundamental principles that involve both electrical and mechanical components. The primary function of a starting motor is to initiate engine operation. This is achieved through the conversion of electrical energy, supplied by the vehicle’s battery, into mechanical energy. This mechanical energy is then used to turn the engine’s crankshaft, allowing the engine to start. The process involves several components, including the solenoid, which engages the starter gear with the engine’s flywheel, and the armature, which rotates to generate the necessary mechanical force ².

Purpose and Role of the 3255868 Starting Motor

The Cummins 3255868 Starting Motor plays a specific role in the operation of a truck by engaging with the engine to start it. When the ignition is turned on, the starting motor receives electrical power from the battery. This power activates the solenoid, which in turn engages the starter gear with the engine’s flywheel. The armature then rotates, converting electrical energy into mechanical energy to turn the crankshaft and start the engine. The reliability of this starting motor is vital for ensuring consistent engine start-up, especially under varying conditions such as cold weather or after the engine has been running for extended periods ³.

Key Features of the Cummins 3255868 Starting Motor

The Cummins 3255868 Starting Motor is characterized by several notable features and design elements. Its construction incorporates high-quality materials that enhance durability and performance. Electrical specifications are tailored to meet the demands of commercial truck engines, ensuring efficient operation. Additionally, the starting motor may include unique technological advancements that improve its functionality and reliability. These features contribute to its effectiveness in initiating engine start-up and maintaining consistent performance over time.

Benefits of Using the Cummins 3255868 Starting Motor

Utilizing the Cummins 3255868 Starting Motor offers several advantages for commercial truck engines. These include enhanced reliability, ensuring consistent engine start-up under various conditions. Durability is another benefit, as the starting motor is built to withstand the rigors of commercial truck operation. Efficiency is improved through optimized electrical and mechanical design, leading to reduced energy consumption during start-up. Performance enhancements are also notable, as the starting motor contributes to smoother and more reliable engine starts, which can impact overall vehicle performance and driver satisfaction.

Troubleshooting and Maintenance Suggestions

To maintain optimal performance and longevity of the Cummins 3255868 Starting Motor, regular maintenance and troubleshooting are recommended. Common issues may include difficulty in starting the engine, unusual noises during operation, or a complete failure to start. Diagnosing these issues can involve checking the battery’s charge, inspecting the solenoid and starter gear for proper engagement, and ensuring the electrical connections are secure and free from corrosion. Recommended maintenance procedures include periodic inspection of the starting motor components, cleaning electrical contacts, and replacing worn or damaged parts as necessary. Addressing potential problems effectively can prolong the life of the starting motor and ensure reliable engine start-up.

Cummins Corporation Overview

Cummins Inc. is a well-established manufacturer with a strong reputation in the automotive and heavy-duty truck components industry. Founded with a commitment to innovation and quality, Cummins has a history of developing reliable and efficient engine components. The company’s dedication to advancing technology and maintaining high manufacturing standards has earned it a respected position in the industry. Cummins’ products, including the 3255868 Starting Motor, are designed with a focus on performance, durability, and compatibility with a wide range of commercial vehicles ⁴.

Cummins Starting Motor 3255868 Compatibility

The Cummins starting motor part number 3255868 is designed to be compatible with a range of Cummins engines, ensuring reliable and efficient starting performance across various applications. This part is engineered to fit seamlessly with the following engines:

N14 MECHANICAL

The N14 MECHANICAL engine, known for its robust design and durability, is often used in heavy-duty applications such as construction and mining equipment. The starting motor 3255868 is specifically engineered to handle the high torque requirements of the N14 MECHANICAL engine, ensuring quick and reliable engine starts even in demanding conditions.

NH/NT 855

The NH/NT 855 engines are part of Cummins’ lineup of mid-range power engines, commonly found in agricultural and industrial machinery. The starting motor 3255868 is tailored to meet the specific electrical and mechanical demands of these engines, providing consistent performance and longevity. Its design ensures minimal wear and tear, contributing to the overall reliability of the NH/NT 855 engines.

Grouping for Efficiency

In many applications, the NH/NT 855 engines are used in conjunction with other mid-range power engines from Cummins. The starting motor 3255868 is compatible with these engines as well, making it a versatile choice for fleets that operate a variety of machinery. This compatibility allows for streamlined maintenance and inventory management, as technicians can use the same part across multiple engine types.

Reliability and Performance

The Cummins starting motor 3255868 is built to withstand the rigors of continuous use in demanding environments. Its robust construction ensures that it can deliver reliable starting power, even in harsh conditions. This reliability is critical for maintaining operational efficiency and minimizing downtime in both agricultural and industrial settings.

Role of Part 3255868 Starting Motor in Engine Systems

The part 3255868 Starting Motor is an integral component in the operation of various engine systems. Its primary function is to initiate the engine’s operation by converting electrical energy into mechanical energy, which in turn rotates the engine’s crankshaft. This action is essential for the combustion process to begin, allowing the engine to transition from a stationary state to an operational one.

In the context of the motor, the Starting Motor (part 3255868) interfaces with the battery to draw electrical current. This current powers the motor’s solenoid, which engages the starter gear with the flywheel. The engagement of these components ensures a smooth transfer of rotational force to the engine.

Furthermore, the Starting Motor works in conjunction with the ignition system. When the key is turned, the ignition switch sends a signal to the starter motor, allowing it to activate. This sequence is vital for the synchronization of the engine’s components, ensuring that the fuel injection and spark timing are correctly aligned for optimal engine start-up.

Additionally, the Starting Motor is designed to handle the high torque demands required during the initial cranking phase. It must operate efficiently under varying conditions, such as cold starts or when the engine is under load, to ensure reliable performance.

Conclusion

In summary, part 3255868 Starting Motor plays a significant role in the starting process of engine systems by facilitating the initial rotation of the crankshaft, ensuring proper engagement with the flywheel, and working in harmony with the ignition system to achieve a successful engine start.