Final answer:
Before moving a dump vehicle, it is important to lower the dump body to the ground to ensure stability during transport, and take additional precautions like engaging the parking brake.
Step-by-step explanation:
When loading a dump vehicle, one of the crucial steps to follow before moving the vehicle is to lower the dump body to the ground. This is necessary for ensuring the stability of the vehicle during transport. Leaving the dump body raised can cause a shift in the center of gravity, leading to potential instability and accidents when the vehicle is in motion. Furthermore, it is important to apply the parking brake and engage the transmission in neutral during the loading process to prevent unintended movement, which could be hazardous for workers and the surrounding area. Regular checks of the tire pressure should also be part of the maintenance routine before and after loading to ensure safe operation.