What is the correct transport position for a tractor front loader (Frontlader) when driving on public roads in Austria?

1. Raised high enough that the loader arms clear parked vehicles
2. Fully raised with the bucket rolled back so nothing can fall out
3. Carried in the manufacturer's designated transport position, with pallet forks or bale spikes removed or folded and covered, and forward visibility kept clear
4. Lowered until the bucket rests on the front ballast weights