What are the characteristics of the metal mesh slings?
Metal mesh slings:
Are made from carbon steel, stainless steel or alloy steel.
Can be coated or impregnated with elastomers (e.g., PVC, neoprene).
Those not impregnated with elastomers are temperature resistant (from - 29°C to 288° C).
Those impregnated with elastomer have narrower temperature work range (-18°C to 93°C).
Are resistant to corrosion (carbon steel and stainless steel slings).
Do not stretch extensively.
When should you use metal mesh slings?
When the loads are:
Have sharp edges that could damage the other slings.
When should you inspect the sling?
Visually check it every day before use.
Periodically, as recommended by the manufacturer, or at least once a year.
What should you look for when inspecting a metal-mesh sling?
Missing or unreadable identification plate.
Broken wires in any part of the mesh.
Broken weld or joints along the sling edge.
Distortion and reduced flexibility.
Distortion of chocker fittings (slot longer by more than 10% of initial length).
Distortion of end fittings that causes the width of eye opening to decrease by more than 10%.
Reduction in wire diameter of 25% due to abrasion or 15% due to corrosion.
Reduction of 15% or more of the initial cross-sectional area in any point around the hook opening of the end fitting.
Cracked, corroded, pitted, bent, twisted or broken end fittings.
Locked spirals without free articulation (movement).
Slings with missing or illegible identification marks.
What should you do when one or more of the above conditions are identified?
Remove sling from use and discard or repair them.
Do not try to repair the sling yourself by hammering it. Send the sling to be repaired by the sling manufacturer.
Use only repaired slings that were proof tested by the sling manufacturer.
Keep the certificates of the proof test.
How should you use metal-mesh slings safely?
Use only slings that have the identification plate on them.
Know the admissible safe load for the slinging configuration you want to use.
Make sure that the load is balanced.
In a chocker hitch, ensure that the female handle chokes on the metal mesh and not on the handle.
Keep body parts away from the area between the load and the sling.
Make a trial lift and a trial lower to ensure everything is working in a safe manner.
Reduce sling stress with slow starts and stops.
Wipe the dirt after use and store on racks as recommended by the manufacturer.
Only use slings that are exposed to extreme temperatures as recommended by the manufacturer or qualified person.
What should you avoid when using metal-mesh slings?
Do not use metal-mesh slings for loads heavier than the safe load.
Do not use horizontal angles less than 30 degrees except as recommended by the sling manufacturer or a qualified person.
Do not use damaged slings.
Do not drag slings out from underneath a load.
Do not use a fitting unless it is the correct shape and size to fit properly in the hook or lifting device.
Do not use metal-mesh slings as bridles on suspended personnel platforms.
Do not shorten metal-mesh slings with knots or bolts.
Do not apply coatings that may lessen the sling's rated capacity.
Do not store the slings in areas where they might be exposed to corrosive agents or subjected to mechanical stress.
Do not use metal-mesh slings outside the temperature range recommended by the manufacturer.
Document last updated on May 17, 2019
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