1. Appearance Inspection
Broken Wires and Wear: Check the number of broken wires on the surface of the wire rope (≤ 2 broken wires within 6 days, ≤ 4 broken wires within 30 days) and the degree of wear (≤ 5% diameter wear).
Corrosion and Deformation: Observe for abnormalities such as rust, flattening, and kinking. Any local diameter increase exceeding 5% or cage-like deformity should be scrapped immediately.
2. Rope End Fixation Inspection
Rope Clamp Installation: Confirm that the rope clamps are facing the long rope (the load-bearing side), with a spacing of ≥ 6 times the wire rope diameter and the number of clamps meeting the standard (e.g., 5 rope clamps for a diameter of 28-37mm).
Connection Tightness: Check the rope end fixings (such as wedge joints and turnbuckles) for looseness or slippage.
3. Lubrication and Cleaning
Lubrication: Use dedicated grease (heated to 60°C for optimal penetration), avoid waste oil, and ensure the grease is free of impurities. Rope Groove Cleaning: Remove metal shavings from the pulley/drum grooves to prevent wire crushing.
4. Functional Test
Lifting Test: Manually or automatically raise and lower the rope, observing for any sticking, slipping, or unusual noises, particularly in the bends.
Flaw Detection: Use a wire rope flaw detector to detect internal wire breakage (especially in sections with frequent bends).
5. Scrap Criteria: Replace the rope immediately if arc damage (molten metal particles), localized dents or deformation, strand extrusion, or reverse kinking are observed.
