1. Introduction
This instruction manual provides essential information for the safe and proper use, inspection, and maintenance of the KwikSafety MAMBA 20' Self-Retracting Lifeline (SRL), Model KS7923-PC-20FTWEB. This device is designed for fall arrest protection in various work environments. Read and understand all instructions and warnings before using this product. Failure to follow these instructions can result in serious injury or death.
2. Safety Information and Warnings
WARNING: This device is part of a personal fall arrest system. Users must be trained by a competent person in the proper use of fall protection equipment. Improper use can result in serious injury or death.
Always inspect the SRL before each use. Do not use if any damage, wear, or malfunction is observed. Remove from service immediately if exposed to a fall.
This device is designed for free fall applications where the anchorage is directly overhead. It is not suitable for horizontal use unless specified by a competent person and manufacturer instructions.
Ensure the anchorage point is capable of supporting 5,000 lbs (22.2 kN) per worker attached, or meets OSHA 1926.502 requirements.
The KwikSafety MAMBA SRL is Class B-SRL and ANSI Z359.14-2021 Tested.
Image: Back view of the KwikSafety MAMBA SRL, showing the product label with critical safety warnings and specifications. The label includes information on inspection, proper use, and limitations.
Key Safety Specifications:
- User Weight Capacity: 130-310 lbs (59-140 kg)
- Maximum Arresting Force: 1,800 lbs (8 kN)
- Maximum Arresting Distance: 54 inches (1.37 meters)
- Minimum Clearance Required: 13.5 feet (4.1 meters) from the anchorage point to the obstruction below.
3. Product Overview and Features
The KwikSafety MAMBA 20' Self-Retracting Lifeline is a robust fall protection device designed for reliability and ease of use. It features a durable, lightweight housing and a self-locking snap hook.
Image: Detailed diagram highlighting the key features of the KwikSafety MAMBA SRL, including the housing, swivel top, pull grip, snap hook, and webbing.
Components:
- Lightweight Carbonate Housing: Provides durable protection for internal mechanisms while minimizing overall weight.
- Swivel Top with Twist Lock Carabiner: Allows for secure attachment to an anchorage point and prevents lifeline twisting.
- Premium Textured Pull Grip: Enhances handling and control during use.
- Self-Locking Snap Hook with Indicator: Ensures secure connection to the harness D-ring. The indicator provides visual confirmation of proper closure.
- Heavy Duty Webbing: The 20-foot lifeline made from durable webbing, designed to withstand fall forces.
4. Setup and Installation
Proper setup is crucial for the effectiveness of the fall arrest system.
- Anchorage Connection: Attach the swivel top carabiner of the SRL to a suitable anchorage point. The anchorage must be located directly overhead and capable of supporting 5,000 lbs (22.2 kN) per worker. Ensure the carabiner is fully closed and locked.
- Harness Connection: Connect the self-locking snap hook of the SRL to the dorsal D-ring of a full-body harness. Verify that the snap hook is fully closed and locked, and the indicator (if present) confirms proper engagement.
- Clearance Verification: Before beginning work, calculate and verify the required fall clearance below the work area. This includes the deceleration distance of the SRL, the height of the D-ring on the harness, and a safety factor. Refer to the fall distance diagram below.
Image: Fall distance diagram for the KwikSafety MAMBA SRL, showing deceleration distance, D-ring height, safety factor, and total required clearance from anchorage.
Minimum Clearance Calculation Example:
- Deceleration distance: 4.5 ft
- Height of dorsal D-Ring on safety harness from worker's feet: 6 ft
- Safety factor: 3 ft
- Required distance from anchorage: 13.5 ft
5. Operating Instructions
The KwikSafety MAMBA SRL is designed for continuous tension and automatic retraction of the lifeline, providing freedom of movement while ensuring fall protection.
- Movement: Move freely within the working area. The lifeline will automatically extend and retract, maintaining slight tension.
- Fall Arrest: In the event of a fall, the internal braking mechanism will engage, locking the lifeline and arresting the fall within inches.
- Post-Fall Procedure: If a fall occurs, the SRL must be immediately removed from service. Do not use it again. The device must be inspected by a competent person or returned to the manufacturer for evaluation and repair or replacement.
Image: A close-up view of the KwikSafety MAMBA SRL in action, showing the webbing extending from the device, illustrating its self-retracting function.
6. Maintenance and Inspection
Regular inspection and proper maintenance are vital for the safety and longevity of your SRL.
Pre-Use Inspection:
Before each use, perform a thorough visual inspection of the entire SRL, including:
- Housing: Check for cracks, dents, deformation, or other damage.
- Lifeline Webbing: Inspect for cuts, fraying, burns, chemical damage, excessive wear, or discoloration. Ensure the lifeline retracts and extends smoothly without hesitation.
- Carabiners/Snap Hooks: Verify that gates open and close freely, lock properly, and are free from distortion, cracks, or corrosion. Check for proper indicator function on the snap hook.
- Labels: Ensure all labels are present and legible.
Periodic Inspection:
A competent person must perform a detailed inspection at least annually, or more frequently if exposed to harsh conditions or heavy use. Maintain inspection records.
Cleaning and Storage:
- Clean the SRL with mild soap and water, then rinse thoroughly and allow to air dry completely away from direct sunlight.
- Store the SRL in a cool, dry, clean area, away from direct sunlight, corrosive chemicals, and extreme temperatures.
7. Troubleshooting
If you encounter any issues with your KwikSafety MAMBA SRL, refer to the following:
- Lifeline does not retract smoothly: Check for obstructions or debris in the housing. If the issue persists, remove the unit from service.
- Lifeline does not lock during a sudden pull: Immediately remove the unit from service. This indicates a critical malfunction.
- Visible damage to any component: Remove the unit from service. Do not attempt to repair the SRL yourself.
Any SRL that has been subjected to a fall arrest event or shows signs of damage or malfunction must be immediately removed from service and tagged as unusable. Do not attempt field repairs.
8. Specifications
Image: Infographic displaying key specifications and compliance standards for the KwikSafety MAMBA SRL.
| Feature | Detail |
|---|---|
| Model Number | KS7923-PC-20FTWEB |
| Lifeline Length | 20 feet |
| Housing Material | Carbonate |
| Fastener Material | Alloy Steel |
| Fastener Type | Self-Locking Snap Hook, Twist Lock Carabiner |
| User Weight Capacity | 130-310 lbs (59-140 kg) |
| Maximum Arresting Force | 1,800 lbs (8 kN) |
| Maximum Arresting Distance | 54 inches (1.37 meters) |
| Minimum Clearance Required | 13.5 feet (4.1 meters) |
| Standards Compliance | ANSI Z359.14-2021, OSHA Compliant |
9. Warranty Information
For detailed warranty information regarding your KwikSafety MAMBA 20' Self-Retracting Lifeline, please refer to the warranty card included with your product packaging or visit the official KwikSafety website. Warranty terms and conditions may vary.
10. Support and Contact
If you have any questions, require technical assistance, or need to report a product issue, please contact KwikSafety customer service. Contact information can typically be found on the product packaging or the official KwikSafety website.
KwikSafety Official Website: www.kwiksafety.com