Which statement about rescue-lift air bags is true?

Which statement about rescue-lift air bags is true?

• A. Do not stack high pressure air bags more than three high.
• B. Rescue-lift air bags can be used to pull steering columns.
• C. When stacking two air bags of different sizes, the larger bag goes on top.
• D. When using lift air bags, you must crib as you lift.

Answer: (D)

Cribbing as you lift is essential because lifting with air bags creates an unstable situation where the load and bags can shift, settle, or tilt. Placing cribbing under the load at each lift increment gives a solid, level base, distributes the forces more evenly, and provides a controlled path for the load to rise. This practice reduces the risk of the bags slipping, the load dropping, or the system becoming unstable if a bag compresses or shifts. Rescue-lift air bags are designed to raise and reposition, not to pull components like steering columns. When stacking bags of different sizes, the larger bag belongs on the bottom to create a stable base, not on top. The key safety step shown here is cribbing during the lift.

Cribbing as you lift is essential because lifting with air bags creates an unstable situation where the load and bags can shift, settle, or tilt. Placing cribbing under the load at each lift increment gives a solid, level base, distributes the forces more evenly, and provides a controlled path for the load to rise. This practice reduces the risk of the bags slipping, the load dropping, or the system becoming unstable if a bag compresses or shifts. Rescue-lift air bags are designed to raise and reposition, not to pull components like steering columns. When stacking bags of different sizes, the larger bag belongs on the bottom to create a stable base, not on top. The key safety step shown here is cribbing during the lift.