When to Buy a New Sling
Conditions such as the following should be sufficient reason for consideration of sling replacement:
- For strand laid and single part slings, ten (10) randomly distributed broken wires in one rope lay, or five (5) broken wires in one strand in one rope lay.
- For cable laid and braided slings of less than 8 parts, twenty (20) randomly distributed broken wires in one lay or braid, or on (1) broken strand per sling.
- For braided slings of 8 parts or more, forty (40) randomly distributed broken wires in one braid, or two (2) broken strands per sling.
- Severe localized abrasion or scraping.
- Kinking, crushing, birdcaging or any other damage resulting in distortion of the wire rope structure.
- Evidence of heat damage or if a wire rope sling having a fiber core is exposed to temperatures in excess of 200° F. or if a wire rope sling having a steel core is used at temperatures above 400° F or below minus 60° F.
- End attachments that are cracked, deformed, or worn.
- Deformation—any visibly apparent bend or twist from the plane of the unbent hook. Throat opening—any distortion causing an increase in throat opening of 5% not to exceed imin. (6mm) (or as recommended by the manufacturer)
- Corrosion of the rope or end attachments.
- Unlaying or opening up of a tucked splice.