Diameter Wear:
If the wear depth of the wire rope's diameter exceeds 10% of its original diameter, the rope should be replaced immediately.
Wear at Strands, Pulleys, Hooks, and Clamps:
These are the most commonly worn areas and also the easiest to inspect. Wear should be evaluated based on the loss in inner diameter, outer diameter, and width. If the width loss reaches 15% of the wire rope’s diameter, immediate replacement is required.
Bending Radius:
Frequent bending or folding during use can alter the rope’s curvature radius, which is one of the main causes of wire rope failure. If the bending radius exceeds the design limits, the wire rope must be replaced at once.
Regular Inspection:
Conduct regular inspections of the wire rope, especially at the strands, pulleys, hooks, and clamps. If severe wear is found, stop using the rope immediately and replace it.
Dispose of Worn Wire Ropes Promptly:
Cut and discard any worn-out wire ropes to prevent accidental reuse.
Avoid In-Use Repairs:
Do not attempt to maintain or repair the wire rope during use, as this may lead to greater hazards.
Follow Manufacturer Guidelines:
Always replace the wire rope according to the manufacturer's specifications to ensure safe tower crane operation.
In conclusion, wear is one of the primary causes of wire rope failure in tower cranes. Regular inspection and timely replacement are essential to ensure operational safety. If severe wear is detected, discontinue use and replace the rope immediately to avoid potential accidents.