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780 SRT OM _Rev A – 780-SRT Shock Reduction Tether System OWNER’S MANUAL

780-SRT Shock Reduction Tether System OWNER’S MANUAL

For LSC Part Numbers


The products offered for sale by LSC are intended for use in rescue operations and survival . Inherent to all rescue and survival environments is an increased risk of injury and/or possible death to an individual or group of individuals. The equipment offered by LSC is intended to aid the professional rescuer(s) and/or survival victim(s). However, the risk of injury or death cannot be completely eliminated or foreseen. Equipment training, maintenance and continual reviews of user proficiency is vital to the proper and safe use of all rescue and survival equipment. It is the responsibility of the purchasing and end-user organization or individual to:

  • Determine the suitability of equipment for the selected application.
  • Define the operational procedures and safety guidelines associated with the proper utilization, maintenance (including service life) and storage of the rescue and survival equipment.
  • Ensure that all individuals are thoroughly trained and familiarized with the intended purpose, correct use and function, and serviceability of the equipment.
  • Ensure that the equipment is properly maintained, inspected, and ready for use at all times.
  • Changes to the configuration of or modifications to LSC products are not authorized by Lifesaving Systems Corp. and are not recommended.

Deviations from these warnings and cautions may result in serious injury or death.

  • The #780-SRT is LSC’s latest technology in restraint tethers, designed to reduce or mitigate the forces experienced by personnel during a fall or other high acceleration event such as vehicular direction change (momentum), etc.
  • The Shock Reduction Tether system is constructed primarily of MIL-SPEC webbing and stainless steel hardware for strength and corrosion resistance in the marine environment.
  • At the core of the SRT system is a patented sacrificial strap that is folded and secured within a protective sleeve forming the shock reduction element. The strap is woven in a special manner such that the fibers will begin to separate and break once a force of approximately 700-800 lbs. is experienced. It is the separation and breaking of the fibers that permits the tether system to dissipate and absorb the energy of the moving mass/body that is in free fall, etc.
  • The shock-reducing element will expand in length, as the fibers are broken.
  • The maximum extension will not exceed 18 inches.

This extended length is in addition to the original length of the adjusted tether. During this extension or energy-absorbing phase, the force experienced by the personnel being restrained is limited to approximately 800 lbs. Once the maximum extension of 18 inches has been let out, no further energy will be absorbed by the shock reduction element, and the unit will serve as a standard nylon-webbing tether up to the rated breaking limit of 3300 lbs. The design of the tether is self-indicating and a warning label will be exposed if the system has been subjected to an over limit force of approx. 800 lbs or greater.

Drop tests performed by LSC show the shock reduction element will arrest a 220 lb body mass from a 3-foot free fall (i.e. one “G” of acceleration) within 14 inches of elongation and subject to a maximum impact of 820 lbs. force. This provides an approximate 54% reduction in impact force when compared to the same test performed without the use of the shock reduction element resulting in an impact of 1810 lbs. force.

Tests were performed using a 220 lb. wooden body form wearing a full body harness and dropped a distance of 3 feet. It is important to note that the percent reduction for this test is specific to the given parameters. Changes in drop distance (resulting in higher or lower speed of the restrained mass at impact), additional acceleration factors, and weight of the body form will provide different results.

NOTE: The above test data is provided for reference only. An increase in any parameter (body mass, fall distance, acceleration or initial velocity) will increase the maximum impact force experienced by restrained personnel. Additionally the type of harness or other personal protective gear worn will affect the results.


Ensure the valve is installed right side up. Green arming indicator or red semi-circle will be visible when correctly installed.


Expendables, and Consumables


  • Waste Bag marked for Biohazard Disposal
  • Fluid-resistant or fluid-impermeable gowns
  • Nitrile Gloves
  • Goggles or face shield
  • Approved N-95 Respirator
  • Mask (mask must cover nose and mouth)
  • Reinforced Paper Towels
  • Scrub brush
  • Plastic bucket or equivalent


Step 1: Remove any equipment soft components, (pads, floats, restraint straps, etc.) that have been exposed to biohazard materials, and place in biohazardous waste bag, seal bag.


Biohazardous waste shall be properly disposed of, according to local regulations concerning hazardous/biological waste disposal.


Avoid skin and soft tissue exposure to all chemicals used in decontamination. Avoid inhaling or ingestion.

Step 2: Pre-clean areas of gross contamination. Using the scrub brush with general purpose detergent and water, clean affected areas thoroughly.

Step 3: Inspect the decontaminated areas for any remaining contaminants. Repeat the process as required to completely clean all surfaces.


Avoid cleaning techniques, such as using pressurized air or water sprays, that may result in the generation of bio-aerosols (aerosolized droplets containing infectious particles that can be inhaled).

Step 4: Rinse with low-flow clean water.

Step 5: Wipe up any puddled areas with disposable reinforced paper towels. Once complete, place soiled paper towels in biohazard waste bag.


Disinfectant is a soft tissue irritant. Avoid eye and mouth contact. Prolonged skin contact may cause dermatitis. If exposed, wash exposed areas thoroughly.


Follow manufacturer instructions for the specific disinfectant.

  • Minor fraying 

Step 6: Apply Public Places or other approved disinfectant to contaminated, hard, non-porous surfaces of the litter until evenly wet.

Step 7: If using chlorine bleach, Use a 1:10 solution of bleach to water (e.g., 1 cup of bleach in 9 cups of water).

Step 8: Allow the equipment to remain undisturbed for 15 minutes.

Step 9: Wipe dry using a disposable paper towel.


Chlorine bleach (sodium hypochlorite solution is a soft tissue, digestive and respiratory irritant. Avoid ingestion, breathing of fumes, or contact with eyes or skin. Use in a well-ventilated area. Wash thoroughly after handling.


It may be necessary to dispose of contaminated objects with porous surfaces that cannot be adequately cleaned and disinfected:

Step 10: As required, machine wash contaminated soft, porous components (float covers, pad covers, blankets, restraint straps, litter insert) in warm water with laundry detergent and one cup of chlorine bleach.

Step 1: Soak materials and PPE used in cleanup and decontamination in disinfectant, double-bag, and place in a leak-proof container to further reduce the risk of worker exposure.
Step 2: After cleaning and disinfection work is complete, remove PPE as follows: gloves, face shield/goggles, gown, and then mask/respirator.
Step 3: Place all protective clothing in a biohazardous waste bag for disposal.


Biohazardous waste shall be properly disposed of, according to local regulations concerning hazardous/biological waste disposal.

  1. Ensure the snap shackle is secured to the proper attachment point on the restraint harness or belt, and the locking pin is fully engaged.
  2. Adjust tether to desired working length and minimize slack in system.
  3. Secure free end of tether webbing with elastic bands to preventing tripping hazard.
  4. Ensure tether is secured to proper attachment/tether point

While LSC has designed and manufactured the #780-SRT to be as reliable as possible, periodic inspections are necessary to ensure functional reliability. Prior to each use, inspect the entire tether assembly for cuts, broken stitches or unusual wear. Check the adjuster and snap shackles for proper operation. Ensure there are no warning labels fully exposed. Full exposure of a warning label indicates tether has been subject to an over limit force. Remove tether from service immediately if any discrepancy is identified.

As required, apply a lightweight lubricant, such as WD-40 to each snap shackle. Wipe off excess lubricant. If unit has excessive soiling, or after direct exposure to salt water, salt spray, fuel, oils or other chemicals clean the entire belt with fresh water and mild detergent. Thoroughly rinse and allow to completely air dry, away from direct exposure to sunlight. After washing lubricate snap shackles as previously described.

Lifesaving Systems Corporation (LSC) has set forth the following recommendations for Life Limits on LSC Manufactured products.  These recommended service life limits are conditional upon documented maintenance and inspections performed in accordance with minimum recommendations set forth in LSC product owner’s manuals.  LSC will not recertify or perform maintenance actions on products determined to be beyond these limits.

Recommended Service Life Limits

Inflatables:  Inflatables manufactured by LSC have a recommended service life limit of fifteen (15) years from Date of Manufacture or ten (10) years from the date placed in service – whichever shall occur first.

Harnesses/Load Bearing Materials:  Rescue harnesses and load bearing webbing products manufactured by LSC for use in Human External Cargo (HEC) operations have a recommended service life limit of fifteen (15) years from Date of Manufacture or twelve (12) years from the date placed in service – whichever shall occur first. 

TSO/ATSO Approved Product Service Life: As marked on the attached label – typically 10 years from the DOM.

Steel Products: Welded steel, mechanically compressed, or assembled steel products* manufactured by LSC for use in Human External Cargo (HEC) operations have a recommended service life limit of twenty-five (25) years from Date of Manufacture or twenty (20) years from the date placed in service* – whichever shall occur first.

* this policy does not apply to hoist hooks installed on aircraft.

This policy does not supersede or alter LSC’s Limited Warranty Terms.

Your Warranty

LSC products are warranted to the first consumer purchaser to be free from defects in material or workmanship for a period of twelve (12) months.

Click for complete warranty information and other terms.

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