3069779
Fracture Resistant Screw
Cummins®

Introduction

The Cummins 3069779 Fracture Resistant Screw is a specialized fastener designed for commercial truck applications. It provides reliable fastening in environments where standard screws may fail due to stress or fatigue. This screw enhances the durability and reliability of critical components, contributing to the overall efficiency and safety of truck operations.

Basic Concepts of Fracture Resistant Screws

Fracture resistant screws are engineered to withstand higher levels of stress and fatigue compared to standard screws. They distribute stress more evenly across their structure, reducing the likelihood of cracking or breaking under load. These screws are typically made from materials such as high-strength steel alloys or titanium, offering superior tensile strength and resistance to deformation ¹.

Purpose and Role in Truck Operation

The Cummins 3069779 Fracture Resistant Screw secures components subject to significant stress and vibration in commercial trucks. It is used in environments where fastener failure could lead to serious mechanical issues, such as in engine components, transmission systems, and chassis assemblies. The screw maintains its integrity under demanding conditions, ensuring continued truck operation without unexpected failures ².

Key Features

The Cummins 3069779 Fracture Resistant Screw features a threaded shaft and a head for driving. It is composed of materials offering high tensile strength and resistance to corrosion. Unique characteristics include precision machining for accurate fit and surface treatments that enhance resistance to wear and environmental factors ³.

Benefits

Using fracture resistant screws like the Cummins 3069779 in commercial trucks offers increased durability, resistance to failure under stress, and longevity compared to standard screws. This can lead to reduced maintenance costs and downtime for truck operators ⁴.

Installation Considerations

Proper installation of the Cummins 3069779 Fracture Resistant Screw is crucial for its function and longevity. This includes using correct torque specifications to avoid over-tightening or under-tightening. Proper alignment with the mating component ensures even stress distribution. Special tools or procedures may be required for installation, depending on the application.

Troubleshooting and Maintenance

Common issues with fracture resistant screws include loosening due to vibration or corrosion. Solutions may involve re-torquing the screws or applying anti-seize compounds to prevent corrosion. Regular maintenance and inspection ensure continued performance and longevity. Replacement guidelines should be followed if a screw shows signs of wear, deformation, or failure.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. The company’s commitment to quality and innovation is evident in its range of truck components, including the Cummins 3069779 Fracture Resistant Screw, designed to meet the demanding requirements of commercial truck applications.

Fracture Resistant Screw 3069779 in Cummins Engines

The Cummins 3069779 Fracture Resistant Screw is integral to several Cummins engine models, enhancing durability and reliability by providing robust fastening solutions that resist fracture under operational stresses.

GTA38 G CMEICS G116C

In the GTA38 G CMEICS G116C engine, the 3069779 screw is used in critical areas requiring high-strength fastening. Its fracture-resistant properties ensure integrity under extreme conditions, contributing to engine performance and longevity.

K38, K50, KTA38GC CM558, QSK38 CM2150 MCRS, QSK38 CM850 MCRS

For the K38, K50, and KTA38GC CM558 engines, the 3069779 screw is employed in various structural and mechanical assemblies. These engines benefit from the screw’s ability to withstand high loads and resist fracture, ensuring secure fastening and operational integrity.

The QSK38 CM2150 MCRS and QSK38 CM850 MCRS engines also utilize the 3069779 screw in key areas. The screw’s design helps maintain structural integrity, providing a reliable fastening solution that enhances engine performance and durability.

QSK50 CM2150 K107, QSK50 CM2150 MCRS, QSK50 CM2350 K108

In the QSK50 series engines, including the CM2150 K107, CM2150 MCRS, and CM2350 K108 models, the 3069779 screw is used in various critical applications. These engines rely on the screw’s fracture-resistant properties to ensure components remain securely fastened under demanding operational conditions. The use of this screw helps maintain structural integrity and reliability, contributing to overall engine performance.

Role of Part 3069779 Fracture Resistant Screw in Engine Systems

Part 3069779, the Fracture Resistant Screw, is integral to the secure assembly and reliable operation of various engine components. Its application ensures that connections remain intact under demanding engine system conditions.

Adapter Crank Mounting and Adapter Mounting

In adapter crank mounting and adapter mounting systems, Part 3069779 provides the necessary tensile strength to withstand rotational forces and vibrations during engine operation. This screw ensures the adapter remains firmly attached to the crankshaft, facilitating smooth power transmission from the engine to the drivetrain.

Base Parts and Crank Mounting Adapter

When integrating base parts with the crank mounting adapter, the Fracture Resistant Screw plays a significant role in maintaining structural integrity. It secures the base parts to the adapter, ensuring the entire assembly can endure dynamic loads and thermal expansions experienced during engine runtime.

Damper and Vibration Components

For components like the damper and vibration damper, including the viscous vibration damper, Part 3069779 is employed to fasten these elements to the engine block or other stationary parts. This secure attachment is vital for the dampers to effectively absorb and dissipate vibrational energy, contributing to the overall stability and longevity of the engine.

Drive and Fan Assemblies

In drive and fan assemblies, the Fracture Resistant Screw ensures that these components are tightly fastened, allowing them to operate efficiently without the risk of loosening over time. This is particularly important for the fan, which must maintain consistent airflow to cool the engine, and for the drive components, which transmit power to ancillary systems.

General Application Across Engine Parts

Across various engine parts, from the smallest base components to larger, more complex assemblies, Part 3069779 Fracture Resistant Screw is a fundamental fastening solution. Its application enhances the reliability and performance of the engine system, ensuring that all components work in unison under the extreme conditions of engine operation.

Conclusion

The Cummins 3069779 Fracture Resistant Screw plays a critical role in the durability and reliability of commercial truck engines. Its design and material properties ensure secure fastening under demanding conditions, contributing to the overall efficiency and safety of truck operations. Proper installation, maintenance, and understanding of its application across various engine components are essential for maximizing its benefits.