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All
slings shall be visually inspected by the person handling the sling each
day they are used. In addition , recorded periodic inspection must be
done annually.
- Distortion of
the rope in the sling such as kinking, crushing, unstranding, birdcaging,
main strand displacement or core protrusion. Loss of rope diameter in
short rope lengths or unevenness of outer strands should provide evidence
the sling should be replaced.
- General corrosion.
- Broken or cut
strands.
- Number, distribution,
and type of visible broken wires.
REPLACEMENT
Condition such
as the following should be sufficient reason for consideration of sling
replacement.
- For strand laid
and single part slings, ten randomly distributed broken wires in one
rope lay, or five broken wires in one strand in one rope lay.
- Severe localized
abrasion or scraping.
- Kinking, crushing,
birdcaging, or any other damage resulting in distortion of the rope
structure.
- Evidence of
heat damage.
- End attachments
that are cracked, deformed, or worn to the extent that the strength
of the sling is substantially affected.
- Hooks should
be inspected in accordance with ANSI B30.10
- Severe corrosion
of the rope or end attachments.
MULTI
- PART REMOVAL CRITERIA FOR CABLE AND BRAIDED SLINGS
| Sling
Body |
Allowable
Broken
Wire Per Lay or One Braid |
Allow
Broken Strands per Sling Lay |
| Less
than 8 per Braid |
20 |
1 |
| Cable
Laid |
20 |
1 |
| 8
Parts and more |
40 |
1 |
WEB SLING
INSPECTION AND REMOVAL FROM SERVICE PER ANSI B30.9
FREQUENT INSPECTION
- This inspection shall be made by the person handling the sling each
day the sling is used.
PERIODIC INSPECTION - Written records are required.
This inspection should be conducted by designated personnel, frequency
of the inspection should be based on the following:
- Frequency of
sling use.
- Severity of
service conditions.
- Experience gained
on the service life of sling used in similar applications.
- At least annually.
| REMOVAL
CRITERIA |
|
1.
Acid or caustic burns.
2. Melting or charring of any part of the sling.
3. Broken, tears, cuts, or snags.
4. Broken or worn stitching in load bearing splices. |
5.
Excessive abrasive wear.
6. Knots in any part of the sling.
7. Excessive pitting or corrosion, or cracked, distorted, or broken
fittings.
8. Other visible damage that causes doubts as to the strength
of the sling. |
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