What is the correct approach to determine if a synthetic sling should be taken out of service?

The correct approach to determine if a synthetic sling should be taken out of service is based on visible signs of wear. When a synthetic sling exhibits any signs of wear, such as fraying, cuts, or significant discoloration, it can compromise the integrity and strength of the sling, potentially leading to failure during use. Regular inspections should focus on such wear indicators to ensure the safety and reliability of the lifting equipment.

Options that suggest tying a knot in the sling or relying solely on a warning label do not address the fundamental safety concerns associated with the sling’s structural integrity. Knots can drastically reduce the working load limit and create uneven stress points, making them a serious safety hazard. Similarly, a warning alone does not provide sufficient criteria for the sling's operational safety; proactive inspection for wear is essential. Additionally, passing a visual inspection does not guarantee that the sling is in good condition if visible signs of wear are present; therefore, it cannot serve as the sole determinant for continued use.