INSPECTION OF WIRE ROPE SLINGS
REMOVAL CRITERIA
Missing or illegible sling identification
Excessive broken wires
Severe localized abrasion or scraping
Kinking, crushing, bird caging or any other damage resulting in damage to rope structure
Evidence of heat damage
End attachments that are cracked, deformed or worn
Severe corrosion of the rope, end attachments, or fittings
Other conditions, including visible damage, that cause doubt as to the continued use
ASME B30.9 outlines the inspection of wire rope slings:
1. Initial inspection: Prior to use, all new, altered, modified, or repaired slings shall be inspected by
a designated person. Written records are not required.
2. Frequent inspection: A visual inspection for damage shall be performed by the user or other
designated person each day or shift the sling is used. Any condition that may result in a hazard
shall cause the rigging hardware to be removed from service. Written records not required.
3. Periodic inspection: A complete inspection for damage to the sling shall be periodically
performed by a designated person. Inspection shall be performed on the entire length including
splices, end attachments, and fittings. The sling shall be examined and a determination made as
to whether they constitute a hazard. Written records of periodic inspection intervals shall not
exceed one year. The frequency of periodic inspections should be based on:
a. Frequency of sling use
b. Severity of service
c. Nature of lifts being made
d. Experience gained
Broken Wires Removal Criteria:
Strand laid and single part slings – 10 randomly broken wires in one lay or 5 wires in one strand in one
rope lay is cause for removal.
6 part braid – 20 per braid length – 8 part braid – 40 per braid length
REMOVAL CRITERIA
Missing or illegible sling identification
Excessive broken wires
Severe localized abrasion or scraping
Kinking, crushing, bird caging or any other damage resulting in damage to rope structure
Evidence of heat damage
End attachments that are cracked, deformed or worn
Severe corrosion of the rope, end attachments, or fittings
Other conditions, including visible damage, that cause doubt as to the continued use
ASME B30.9 outlines the inspection of wire rope slings:
1. Initial inspection: Prior to use, all new, altered, modified, or repaired slings shall be inspected by
a designated person. Written records are not required.
2. Frequent inspection: A visual inspection for damage shall be performed by the user or other
designated person each day or shift the sling is used. Any condition that may result in a hazard
shall cause the rigging hardware to be removed from service. Written records not required.
3. Periodic inspection: A complete inspection for damage to the sling shall be periodically
performed by a designated person. Inspection shall be performed on the entire length including
splices, end attachments, and fittings. The sling shall be examined and a determination made as
to whether they constitute a hazard. Written records of periodic inspection intervals shall not
exceed one year. The frequency of periodic inspections should be based on:
a. Frequency of sling use
b. Severity of service
c. Nature of lifts being made
d. Experience gained
Broken Wires Removal Criteria:
Strand laid and single part slings – 10 randomly broken wires in one lay or 5 wires in one strand in one
rope lay is cause for removal.
6 part braid – 20 per braid length – 8 part braid – 40 per braid length