During lifting, where should the load's center of gravity be positioned to prevent slipping?

During lifting, where should the load's center of gravity be positioned to prevent slipping?

• A. Directly under the hook.
• B. Directly above the hook.
• C. Directly in front of the hook.
• D. Directly to the side of the hook.

Answer: (D)

Stability during lifting comes from how the weight’s line of action sits in relation to the hook. If the load’s center of gravity sits to the side of the hook, the hook’s saddle and contact area tend to cradle the load and resist forward or backward slipping as the sling tightens and the load may sway. This offset position helps keep the load seated on the hook and reduces the chance it will ride out of the hook throat as lifting begins. In short, placing the load’s center of gravity to the side creates a stabilizing contact that helps prevent slipping, whereas a CG directly under the hook can be more prone to tipping or shifting during lift. Always ensure the rigging is secured, balanced, and appropriate for the hook and load.

Stability during lifting comes from how the weight’s line of action sits in relation to the hook. If the load’s center of gravity sits to the side of the hook, the hook’s saddle and contact area tend to cradle the load and resist forward or backward slipping as the sling tightens and the load may sway. This offset position helps keep the load seated on the hook and reduces the chance it will ride out of the hook throat as lifting begins. In short, placing the load’s center of gravity to the side creates a stabilizing contact that helps prevent slipping, whereas a CG directly under the hook can be more prone to tipping or shifting during lift. Always ensure the rigging is secured, balanced, and appropriate for the hook and load.