Synthetic Webbing Slings
a. Acid or caustic burns
b. Melting, charring, or weld spatter of any part of the sling
c. Holes, tears, cuts, snags, or embedded particles
d. Broken or worn stitches in load bearing splices
e. Wear or elongation exceeding the amount recommended by the manufacturer
f. Distortion, excessive pitting or corrosion, or broken fittings
g. Frozen slings or slings subjected to temperatures below minus 20
F or above 180
F shall be removed
from service or have capacities reduced in accordance with manufacturer's requirements.
h. Knots in any part of the sling
i. Visual indication of ultra-violet degradation such as:
1) Bleaching out of sling color
2) Increased stiffness of sling material
3) Surface abrasion in areas not normally in contact with the load
18. Rigging Hardware (Eye Bolts, Shackles, etc.)
Daily. Check all rigging hardware for damage or defects prior to use. Damaged hardware should be removed
from service and cut in half or rendered useless by other means to ensure it can not be used.
Annual. Inspect rigging hardware thoroughly for any damage such as nicks, gouges, or deformation.
Refer to the Rigging Manual and Reclamation Safety and Health Standards for more information on
removal from service requirements.
19. Lifting Beams and Specialized Lifting Devices
Daily. Check for any sign of deformation or other damage. All specialized devices should be designed and
certified for use by an engineer competent in the field. Lifting devices designed for a specific operation
should not be used for any other operation unless approved by a competent engineer.
Annual. Check for deformation and lubricate bearings and bushings. Check that all pivot points and level
indicators are free to move. For rarely used lifting devices, apply a protective coating to areas prone to
corrosion. Clean and paint as required.