What are the signs of tractor instability?

The signs of tractor instability primarily involve conditions that can lead to loss of control or tipping over. Factors such as uneven terrain, excessive speed, and sharp turns create a scenario where the tractor's center of gravity can be compromised. For example, traversing on uneven ground can shift the weight distribution, increasing the risk of overturning. Excessive speed decreases the operator’s ability to react to sudden changes in the environment, while making sharp turns can further destabilize the vehicle, especially if the load is not properly balanced.

In contrast, the other choices describe conditions that would generally promote stability rather than signal instability. A smooth surface and steady pace, for instance, help maintain control and minimize the risk of tipping. Gradual acceleration and a balanced load enhance stability, as a well-distributed load keeps the center of gravity low and even, while riding on flat ground with minimal turns represents ideal conditions for safe tractor operation. These attributes contribute to maintaining balance and control, making them contrary to the characteristics indicating instability.