Chain Slings Inspection Guide Part 3

Chain Slings Inspection Guide

(Grade 80 and Grade 100 round link chain slings, with master links, shorteners, connecting links, sling hooks)

▶ How should chain sings be checked during each inspection?

• Clean chain sling before inspection. 

• Check sling identification tag.

• Hang the chain sling up or stretch the chain sling out on a level floor in a well-lighted area. Remove all chain links twists. Measure the chain sling length. Discard if a chain sling has been stretched.

• Make a link-by-link inspection and discard if: 

a) Wear exceeds 15% of a link diameter.

b) Cut, nicked, cracked, gouged, burned, weld splattered, or corrosion pitted.

 

c) Deformed, twisted or bent chain links or components. 

 

d) Stretched. Chain Links tend to close up and get longer.

 

• Check master link, load pins and sling hooks for any of the above faults. Sling Hooks should be removed from service if they have been opened more than 15% of the normal throat opening, measured at the narrowest point, or twisted more than 10° from the plane of the unbent hook.

• Manufacturers' reference charts show chain sling and hitch capacities. Record manufacturer, type, work load limit and inspection dates.