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SLING SAFETY |
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Types of Slings - Chain Slings |
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| Chain slings must be cleaned prior to inspection
because dirt will hide
damage. The sling’s total length must be periodically inspected for stretching,
binding, wear, nicks, or gouges. Heavy nicks and/or gouges must be filed smooth, measured
with calipers, and compared with the manufacturer's minimum allowable safe dimensions.
Notify the supervisor if welds need repair, do not use the sling if in doubt. If a sling
has stretched more than three percent longer than its original length, it is unsafe and
must be discarded. Worn or damaged alloy steel chain slings or attachments shall not be used until repaired. Alloy steel chain slings with cracked or deformed master links, coupling links, or other components shall be removed from service. If the chain size at any point is less than that stated in Table N-184-2 of 29 CFR 1910.184, the sling shall be removed from service. Binding occurs when a sling has become deformed to the degree that individual links cannot move within each other freely. It is an indication that the sling is unsafe. Generally, wear occurs on the load-bearing inside ends of the links. Pushing links together so that the inside surface becomes clearly visible is the best way to check for this type of wear. Wear may also occur, however, on the outside of links when the chain is dragged along abrasive surfaces or pulled out from under heavy loads. |
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