1. Catalogs
  2. C-Tecnics
  3. Jok II Diver Recovery Harness

Jok II Diver Recovery Harness

Jok II Diver Recovery Harness

Jok II Diver Recovery Harness

Product catalog summary
Introduction
The JOK II is a CE-Marked Diver Recovery Harness designed for the recovery of fully-kitted divers in air or bell diving conditions. It features lifting points via a rear neck 'D' Ring or a spreader bar across the front lifting points, with essential under-leg straps for recovery.
Specifications and Testing
The harness is rigorously tested to 900Kg/N, adhering to BS EN15333:2008 standards, ensuring no failure in stitching or webbing. Special profile-cut ‘D’ rings are used to eliminate doubts about lifting point integrity, as traditional welded ‘D’ rings lack load certification.
Design Improvements
Feedback from divers led to enhancements such as additional ‘D’ rings, more tactile recovery rings, a chest strap to prevent shoulder strap slippage, and repositioned strap routings for better ergonomics and comfort. The waist strap buckle was upgraded for improved adjustment and security.
Maintenance Recommendations
The harness should be included in the company’s Planned Maintenance System (PMS) and inspected every six months by a competent person for signs of wear or damage. Adopting IMCA’s policy on life support equipment is advised to ensure continued fitness for purpose.
Dynamic Loading Considerations
Dynamic loading issues, such as those caused by falls or surface recovery in swell conditions, were addressed by redesigning the webbing routing. The harness is tested to support a fully kitted diver weighing 150kg with a 6:1 safety factor.
Accessories
Spreader Bar: Distributes pull evenly between front lifting points, tested to 300 Kg.
Diver Recovery Block & Tackle: A 6:1 advantage pulley system with a Safe Working Load of 480 Kgs and a Breaking Load of 1,350 Kgs, compliant with the Machinery Directive 2006/42/EC.
See more

Catalog excerpts

Jok II Diver Recovery Harness-1

JOK II © Diver Recovery Harness Of course it’s an upgrade incorpora ng diver feedback - this is how we work with our customers! The JOK II is a CE-Marked Diver recovery harness to permit recovery of a fully-ki ed diver from the water in air diving or bell diving condi ons. Li ing can be via a rear of neck ‘D’ Ring or with a spreader bar across the two front of harness li ing points. The under-leg straps are essen al for diver recovery. It is important to differen ate between cer fied li ing points and lightweight tool a achment points - the special profile-cut ‘D’ rings make no doubt which to use, and assist the diver in poor visibility or stressed condi ons. The Umbilical connec on point is also load tested, but is adjustable as to its posi on, which allows divers of different sizes to slide it into posi on and lock it in the most suitable place. Tes ng Very few diver recovery harnesses have ever been tested to ensure that they actually support the diver when he needs it. Life Support Engineering (LSE) developed a rigorous test protocol and procedure when designing the Mk1 harness and con nue this striving for the best with the MKII. The JOK II harness was tested at 900Kg/N with no failure of s tching or webbing, in line with the requirements of harmonised standard BS EN15333:2008. The special profile cut ‘D’ rings were selected to overcome any doubts which may occur when using normal welded ‘D’ rings for li ing purposes as we uncovered that the manufacturers of these tradi onal items would not load cer fy them as they could not guarantee the weld quality. C-Tecnics Ltd. Unit 1A Mugiemoss Road, Aberdeen, AB21 9US, Scotland Tel: +44 (0) 1224 608 000 E-Mail: sales@c-tecn

 Open the catalog to page 1
Jok II Diver Recovery Harness-2

JOK II © Diver Recovery Harness Dynamic loading was poten ally an issue if a diver were to fall when being recovered, or exi ng, from the water or indeed if the diver was to be effected by swell or waves at the point of surface recovery. The rou ng of the webbing had to be changed from some of the early design of one piece ‘wrap round’ webbing as it simply wouldn’t take the strain in tes ng – we have proven that many other designs are simply inadequate. The weight of a fully ki ed diver was es mated as 150kg allowing for suit, bail-out and other equipment. A 6:1 safety factor was then used to...

 Open the catalog to page 2
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.