Loos & Co. MS21259-5 Stainless Steel Stud End User Manual

1. Introduction

This manual provides instructions for the proper installation, operation, and maintenance of the Loos & Co. MS21259-5 Stainless Steel Stud End. This component is designed for secure termination of 5/32" diameter aircraft cable, ensuring reliable performance in various applications. Please read these instructions thoroughly before use.

2. Safety Information

Always observe standard safety precautions when working with cables and fittings. Ensure all tools are in good working condition. Wear appropriate personal protective equipment (PPE), such as safety glasses and gloves. Improper installation can lead to component failure and potential injury.

• Verify cable diameter (5/32") matches the stud end specification.
• Ensure proper crimping or swaging techniques are used for secure attachment.
• Do not exceed the working load limit of the cable or fitting.
• Regularly inspect installed components for wear or damage.

3. Product Overview

The Loos & Co. MS21259-5 is a stainless steel stud end designed for terminating 5/32" diameter cable. It features a right-hand thread for attachment and is DFAR Compliant, suitable for US Military Specifications usages. This stud end is typically used in conjunction with MS20664 ball fittings.

Figure 1: Loos & Co. MS21259-5 Stainless Steel Stud End. This image shows the stainless steel stud end component, highlighting its threaded shaft and cable attachment point.

Key Features:

• Material: Stainless Steel for corrosion resistance.
• Cable Diameter: Designed for 5/32" aircraft cable.
• Thread Type: Right-hand thread.
• Compliance: DFAR Compliant for US Military Specifications.
• Compatibility: Use with MS20664 ball fittings.

4. Installation Instructions

Follow these steps for proper installation of the MS21259-5 Stud End onto a 5/32" aircraft cable.

1. Prepare Cable: Ensure the end of the 5/32" aircraft cable is clean and free from fraying.
2. Insert Cable: Insert the cable into the stud end's barrel. Ensure the cable is fully seated.
3. Swage/Crimp: Using appropriate swaging or crimping tools, secure the stud end to the cable. Refer to the tool manufacturer's instructions for the correct number of swages and pressure settings. A properly swaged fitting will show a slight deformation of the barrel, indicating a secure connection.
4. Inspect Connection: Visually inspect the swaged area for any cracks, uneven deformation, or signs of improper attachment. Perform a pull test if required by application standards.
5. Attach to Ball Fitting: Once securely attached to the cable, the threaded end (right-hand thread) can be connected to an MS20664 ball fitting or other compatible component. Ensure the connection is tightened appropriately to prevent loosening during operation.

5. Operating Considerations

The MS21259-5 Stud End functions as a static cable termination point. Once installed, its operation is passive. Ensure that the cable assembly, including the stud end, is not subjected to loads exceeding its design limits. Regular checks for tension and secure attachment are recommended, especially in dynamic or high-vibration environments.

6. Maintenance

The stainless steel construction of the MS21259-5 Stud End provides excellent corrosion resistance, minimizing maintenance requirements. However, periodic inspection is crucial for long-term reliability.

• Visual Inspection: Regularly inspect the stud end and the cable connection for signs of wear, corrosion, cracks, or deformation.
• Cleaning: If exposed to harsh environments, clean the component with a mild detergent and water, then rinse thoroughly and dry. Avoid abrasive cleaners that could damage the stainless steel finish.
• Lubrication: No lubrication is typically required for the stud end itself.
• Replacement: Replace any stud end that shows signs of damage, excessive wear, or compromised integrity immediately.

7. Troubleshooting

Given the nature of this component, troubleshooting primarily involves identifying improper installation or damage.

• Loose Connection: If the stud end feels loose on the cable, it indicates improper swaging/crimping. The component must be replaced and re-installed correctly. Do not attempt to re-swage.
• Corrosion: While stainless steel is resistant, severe environments can cause surface corrosion. Clean as per maintenance instructions. If pitting or significant material loss is observed, replace the component.
• Thread Damage: If the right-hand thread is stripped or damaged, the stud end cannot form a secure connection and must be replaced.

8. Specifications

9. Warranty and Support

For warranty information or technical support regarding the Loos & Co. MS21259-5 Stainless Steel Stud End, please contact Loos & Co. Cableware Division directly. Refer to their official website or product packaging for the most current contact details and warranty terms.

Manufacturer: Loos & Co Cableware Division

Website: www.loosco.com