Inspection And Maintenance - Sperian MILLER 8172 Manuel D'utilisation

5.0 Inspection and Maintenance

Miller rope grabs and vertical lifelines are designed for today's rugged work environments.
To maintain their service life and high performance, system components should be inspected
frequently. Inspect each product thoroughly before each use. Regular inspection by a competent
person for wear, damage or corrosion should be a part of your safety program.
5.1 Inspection
LANYARD INSPECTION
Before each use, visually inspect for the following:
ROPE GRABS/WIRE ROPE GRABS
• Inspect for physical damage, cracks, wear and corrosion.
• Check cam and springs (8174 & 8175 models) for damage or loss of tension.
• Check pawl and locking mechanism (8172 & 8173 models).
• Be sure that all parts move freely without hesitation.
• Check rivets for damage, cracks, wear or corrosion.
• Inspect for malfunctioning components, broken or missing springs.
VERTICAL LIFELINES
• Rope Lifelines: Rotation of the rope lifeline while
inspecting from end-to-end will bring to light any fuzzy,
worn, broken or cut fibers. Weakened areas from extreme
loads will appear as a noticeable change in original
diameter. The rope diameter should be uniform throughout,
following a short break-in period.
• Wire Rope Lifelines: While rotating the wire rope lifeline,
watch for cuts, frayed areas, or unusual wearing patterns
on the wire. Broken strands will separate from the body of
the lifeline.
CAUTION: Always wear gloves when inspecting a
wire rope lifeline; broken strands can cause injury!
• Snap Hooks/Carabiners: Inspect closely for hook and
eye distortions, cracks, corrosion, or pitted surfaces.
The keeper (latch) should seat into the nose without
binding and should not be distorted or obstructed. The
keeper spring should exert sufficient force to firmly close
the keeper. Keeper locks must prevent the keeper from
opening when the keeper closes.
• Thimbles: The thimble must be firmly seated in the eye
of the splice, and the splice should have no loose or cut
strands. The edges of the thimble must be free of sharp
edges, distortion, or cracks.
If inspection reveals a defect in condition, remove the device from service. Always remove
from service any equipment subject to a fall. Products removed from service should be
disposed of in a manner that prevents inadvertent further use.
Us er Ins tru ct ion s - Engl is h
8