You are driving a tractor with an attachment. After working in a field, now you want to drive on a public road. What should you note first?

It's important to ensure safety when transitioning from working in a field to driving on a public road with a tractor and attachment. Each component of your chosen answer contributes to this safety:

1. Locking the foot pedals for the single wheel brake ensures that the brakes are secure and won't inadvertently release while driving, which is crucial for maintaining control of the vehicle.
2. Ensuring the attachment is in its transport position prevents it from creating hazards for other road users. It minimizes the risk of accidents caused by protruding or unstable equipment.
3. Attaching the necessary warning panels that indicate vehicle width is critical for alerting other drivers to the size of your tractor and its attachment. This helps to prevent collisions due to misjudgment of space or distance by other vehicles.

According to German traffic regulations, these measures are essential for safe operation on public roads and to comply with legal requirements. Failing to address any one of these could increase the risk of accidents and lead to violations of traffic laws.