What is the danger of slewing with a load when the turntable is not level?

When slewing with a load, the orientation and stability of the excavator are critical for safe operation. If the turntable is not level, it can lead to an unbalanced distribution of weight. This instability significantly increases the risk of the machine overturning. An overturned excavator can result in severe accidents, posing dangers not just to the operator but also to nearby workers and equipment.

It's essential to operate machinery in a stable condition to prevent excessive lateral forces from acting on the machine. In an unlevel position, the center of gravity shifts, making it more vulnerable to tipping over, especially when the load is swung out to the side. Ensuring the turntable is level before slewing helps maintain the machine's stability and safety.

The other choices describe scenarios that do not directly address the core issue of stability during slewing. Increased efficiency relates to productivity but does not mitigate safety risks. Reduced visibility, while a concern during operation, does not directly relate to the consequences of slewing in an unsteady position. Lastly, damage to the load may occur, but the primary risk is the machine's potential to overturn, making it a far more critical consideration in this context.