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Guide for Inspecting Chain Slings

By Tim Muprhy 1 years ago No comments

For overhead lifting applications, chain slings, like any lifting sling, have an extremely important job. Visual inspection prior to each use is mandatory. Unless a chain sling is inspected - damage, deterioration, and other problems potentially could cause failure. With damage/deterioration present in the sling, as a load is lifted, there is the potential for the sling to break. At that point, any persons or objects nearby, are at risk of damage or harm.

Conducting an Appropriate Inspection

Regular inspections are imperative. According to current standards, the inspection must include multiple steps. Prior to performing an inspection, each chain sling must be clean allowing for visual access to the links & hardware. Covered in dirt, with grease, or even paint hides damage, such as gouges, cracks, wear and nicks, making them invisible to the eye.

Check the legibility of the identification tag to make sure the manufacturer’s name, serial number, working load limit, grade, size, and reach all correspond to the Chain Sling Certification available from the fabricator. The reach of each leg must be measured to ensure they match the identification tag. When one or more legs measure longer, generally that means that the chain sling is worn or has been overloaded and stretched at some point.

Most importantly, every link must be inspected, one by one. When inspecting chain slings, you are looking for links that are distorted or deformed in any way. Cuts, twisted, gouged, wear or bends – remove from service. You also want to pay attention to any corroded, cracked or stretched links, areas of excessive wear, any degradation or deformation of the links or components, this includes cracks in the links or welded areas. In addition, look for any damage and wear on the coupling and master links. Coupling links that don’t easily bend at the pin should be checked for deformation.

When inspecting chain slings, in addition to the chain links, check all hardware for deformation and bending. Anything out of “as manufactured” dimensions should be compared to the allowable dimensions set up in inspection criteria.

When a sling is removed from service, be sure to attach a warning sign to alert others that the sling is no longer safe to use. By following the procedures of a proper inspection, you are assured that the chain sling is in proper working condition.

Choosing quality chain slings is imperative for proper operation and safety. At Murphy Industrial Products, Inc., we take great pride in providing our customers with a wide selection of the highest-quality products available. For more information or to order new chain slings, please call us on 866-848-2032. For more information on Chain Sling Retirement Criteria visit our web site www.MURPHYINDUSTRIALPRODUCTS.com.

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