What is the proper method for securing an excavator or backhoe onto a lowboy flatbed trailer (cama baja) for highway transport in Chile?

1. Park it in neutral with no chains or binders
2. Lower the boom and bucket flat onto the trailer deck, engage hydraulic locks, set parking brakes, apply heavy chocks (cuñas) to tracks/tires, and secure with four independent high-tensile transport chains and ratchet binders cross-lashed to rated D-rings
3. Tie it with thin plastic ropes to the trailer wooden floorboards
4. Hold the machine with one small cargo strap