[RIGGER’S CORNER]
HOW NOT TO CONNECT A SYNTHETIC SLING
TO AN EYEBOLT A quick reminder from The Rigging Institute, LLC.
Headquartered in Knoxville, Tennessee, the Rigging Institute, LLC provides training at their location, as well as onsite at your location, if desired. Established by the founders of I&I Sling Inc. and Slingmax® Rigging Solutions in 2010, the Rigging Institute combines decades of experience in designing, fabricating, and testing rigging equipment with certified instructors that possess extensive field experience in various industries.
I&I Sling has manufactured, tested, designed, and patented rigging slings and hardware since 1966, while Slingmax® is a worldwide association of rigging equipment fabricators, with locations in 10 different countries. Tese two companies, headquartered in Aston, Pennsylvania, have provided rigging training to end-users since the 1980s—throughout the United States, Canada, and abroad. Te Rigging Institute was created to concentrate solely on providing quality training to the rigging industry. Classes vary in length from 4 to 16 hours, and utilize current
industry standards and practices, as well as real-world examples from the field. Te Rigging Institute combines book knowledge with practical, everyday experience that leaves their students with a better overall understanding of the subjects. “Whether you’re brand-new to the industry, or a seasoned rigger seeking qualification or certification, we have the training course for you,” says Rigging Institute President Mike Riggs. “Our various programs blend a straightforward and practical approach to rigging with real-world examples from the field.” As part of our Rigger’s Corner piece in this issue, Riggs provided some valuable input on connecting slings to eyebolts.
(above left) An improper connection where a worker has ‘choked’ the sling through the eye of the hardware. Test break results were at 3.6:1.
(above right) A proper connection, using hardware to connect a sling to an eyebolt. Test break results were at 5.8:1.
DID YOU KNOW: • Always use hardware when connecting a synthetic sling to eyebolts. • Riggers often connect synthetic slings to eyebolts and hoist rings by choking the sling through the eye of the hardware. • When this is done, there is a significant loss of the sling’s strength.
RULES TO WORK (AND LIVE) BY: • NEVER connect synthetic slings to eyebolts and hoist rings by choking the sling through the eye of the hardware.
• If a rigger does this, they put their life, and the lives of others, at risk.
• In a choker hitch, the choke point should only be on the sling body, not on a splice or fitting.
• Slings should not be constricted, bunched, or pinched by the load or any fitting. For more information, find a comprehensive demonstration video of what can happen when synthetic slings are improperly connected to eyebolts here:
http://www.rigginginstitute.com/ DYK.htm and then click on DYK-006 And for more information on the Rigging Institute, visit
www.rigginginstitute.com. y
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JANUARY-FEBRUARY 2015
WIRE ROPE EXCHANGE
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