What happens if one climbs the ATG before extending the leveling jacks?

Climbing the ATG (Access Towable Ground) before extending the leveling jacks creates a significant safety hazard. Leveling jacks are essential for stabilizing trailers and equipment, particularly in elevated positions. Without these jacks properly extended, the trailer is at risk of tipping over, leading to potential injuries to personnel who are on or near the equipment.

This scenario emphasizes the importance of following safety procedures in equipment operation. Climbing onto an unsteady or improperly stabilized unit not only compromises the safety of the operator but can also lead to equipment damage or further complications. Therefore, ensuring the leveling jacks are extended before climbing is critical for maintaining a safe working environment.

The other choices reflect consequences that could happen but do not directly encapsulate the immediate and severe risk presented by an unsteady trailer, which is the tipping and possible injury consequence that stands out in this context.