S605
Lock Washer
Cummins®

The S605 Lock Washer, a specialized component manufactured by Cummins, is integral to the automotive and heavy-duty truck industry. Designed for commercial trucks, this part ensures the integrity and reliability of fastening applications. Cummins’ reputation for quality and innovation makes the S605 Lock Washer a trusted choice for truck maintenance and operation ¹.

Basic Concepts of Lock Washers

Lock washers are mechanical devices used in fastening applications to prevent the loosening of nuts and bolts. They function by creating friction or bite between the fastener and the surface it is securing, which helps to maintain the tension of the fastener under dynamic conditions. This is particularly important in environments where vibrations or fluctuating loads are common, as these conditions can lead to the gradual loosening of fasteners over time ².

Purpose of the S605 Lock Washer

This Cummins part is specifically designed to enhance fastening security in commercial trucks. It is applied in various truck components and systems where reliable fastening is crucial. This includes, but is not limited to, engine components, suspension systems, and chassis assemblies. By preventing the loosening of fasteners, the S605 Lock Washer contributes to the overall safety and performance of the truck ³.

Key Features

The S605 Lock Washer is distinguished by several key features that enhance its performance and durability. It is typically made from high-strength materials, ensuring it can withstand the rigors of commercial truck operation. Its design includes specific elements that increase its effectiveness in preventing fastener loosening, such as serrated edges or a split design that digs into the fastened surface. These attributes contribute to its reliability in harsh operating conditions ¹.

Benefits

Utilizing the S605 Lock Washer in truck maintenance and operation offers several advantages. It provides improved fastening security, which is vital in environments where vibrations are common. Its design also offers resistance to loosening under dynamic loads, contributing to the longevity of fastening applications. Additionally, the durability of the S605 Lock Washer ensures it can withstand the harsh conditions typical of commercial truck operation, reducing the need for frequent replacements ².

Installation Guidelines

Proper installation of the S605 Lock Washer is crucial for its effectiveness. It should be placed under the head of the bolt or nut, ensuring it is correctly aligned with the fastener. When tightening, it is important to follow the manufacturer’s torque specifications to ensure the fastener is secure without over-tightening, which could damage the washer or the fastened components. Careful attention to alignment and torque is necessary to maximize the performance of the S605 Lock Washer ³.

Troubleshooting and Maintenance

Regular maintenance and inspection of lock washers are important to ensure their ongoing reliability. Signs of wear or failure, such as deformation or damage to the washer, should be addressed promptly. Routine checks during maintenance intervals can help identify issues before they lead to fastening failures. Replacement of the S605 Lock Washer should follow the same careful installation guidelines to maintain the integrity of the fastening application ¹.

Common Applications

The S605 Lock Washer finds its use in a variety of applications within commercial trucks. It is commonly employed in engine components where secure fastening is critical for performance and safety. Additionally, it is used in suspension systems and chassis assemblies, where it helps to maintain the structural integrity of the truck under dynamic loads ².

Manufacturer Information - Cummins

Cummins is a globally recognized manufacturer with a strong reputation in the automotive and heavy-duty truck industries. The company has a history of innovation and quality, which is reflected in its wide range of automotive components. Cummins’ commitment to excellence ensures that products like the S605 Lock Washer meet the high standards required for commercial truck applications, providing reliability and performance in demanding environments ³.

Compatibility with Cummins Engines

This part is engineered to fit seamlessly with a range of Cummins engines, providing reliability and durability in demanding conditions. Below is a detailed overview of the engines with which the S605 Lock Washer is compatible:

• 4B3.9 and 6B5.9 Engines: Ensures secure fastening in medium-duty applications.
• 6C8.3 and B3.9 G Engines: Provides necessary security for various components.
• B5.9 G and B5.9 GAS PLUS CM556 Engines: Ensures fastenings remain secure under high stress conditions.
• C GAS PLUS CM556 and C8.3 G Engines: Designed for heavy-duty applications, ensuring tight and secure fastenings.
• G5.9 and G5.9 CM558 Engines: Provides essential support for various components.
• G8.3 and G855 Engines: Ensures fastenings remain secure, contributing to overall reliability.
• G855 CM558 and GTA38 G CMEICS G116C Engines: Ensures fastenings remain secure in high-stress conditions.
• GTA8.3 CM558 and GTA855 CM558 (CM2358) G101 Engines: Designed for heavy-duty applications, ensuring tight and secure fastenings.
• ISC CM850 and ISL9 CM2150 SN Engines: Provides essential support for various components.
• ISM CM570, ISM CM570/870, ISM CM876, ISM11 CM876 SN, and ISX CM570 Engines: Ensures fastenings remain secure, contributing to overall reliability.
• K19 and K38 Engines: Provides essential support for various components.

Role of the S605 Lock Washer in Engine Systems

This part is an essential component in securing various parts within engine systems, ensuring stability and preventing loosening due to vibrations. Here’s how it integrates with several key components:

• Air Compressor Tube Mounting: Ensures the tube remains firmly attached, maintaining the integrity of the air supply system.
• Block and Cylinder Assembly: Prevents rotational movement that could lead to misalignment or failure.
• Terminal and Compressor Air 2.2.2. Head Code: Ensures electrical and air connections remain tight, vital for maintaining consistent performance and safety.
• Exhaust Outlet and Control Assembly Panel: Prevents unwanted movement that could affect the exhaust flow or control panel operation.
• Cover Push Rod and Exchanger Heat: Maintains their positions for efficient heat transfer and proper functioning.
• Fan Drive and Fan Engine Drive: Secures the fan to the engine, ensuring smooth operation without risk of detachment.
• Fuel Governor and Hardware: Maintains precise settings of the fuel governor, ensuring optimal fuel delivery.
• Cir Brkr Mtg and Hydraulic Assembly: Ensures all connections remain secure, essential for reliable operation of hydraulic systems.
• Manifold Intake and Mounting: Prevents the manifold from loosening, important for maintaining the air-fuel mixture and engine performance.
• Instrument Panel and Oil Gauge Tube: Secures mounting bolts, ensuring critical gauges remain in place and provide accurate readings.
• Pump and T.C. Charging: Secures components subject to high vibrations, ensuring longevity and reliability of pump operations.
• Radiator and Grill, Tank Expansion: Maintains structural integrity, important for efficient cooling and expansion management.
• Terminal Box Mounting and Tube Support: Ensures components remain fixed in place, preventing electrical or structural issues.
• Vac Pump Dr & Cool Tubes, Water Transfer Mounting Tube: Secures these tubes, ensuring efficient vacuum and water transfer within the engine system.
• Wiring Harness: Secures mounting points, ensuring the harness remains in place and functions correctly without interference from vibrations.

Conclusion

The S605 Lock Washer plays a vital role in the maintenance and operation of commercial trucks by ensuring secure fastening in various critical components. Its compatibility with a wide range of Cummins engines and its robust design make it an indispensable part for maintaining the integrity and performance of truck engine systems. Regular maintenance and proper installation are key to maximizing the benefits of this part.