Keep far away from excavator in working

Keep far away from excavator in working

Any accident foreseen in this frame?

A hydraulic excavator is loading crushed stones on a truck in a material stockyard. In between the hydraulic excavator and the truck a worker is collecting the spilt crushed stones with a shovel.

Now what accident do you foresee occurring in this frame? 

This is the accident resulted!

The hydraulic excavator swung all of sudden. Then he was caught between the counterweight of the machine and the truck's rear gate, and killed.

Tips for forestalling similar accidents

1. Make sure that nobody gets within the reach of the swinging upper structure.
2. If it becomes unavoidable for a worker to enter the reach, let the operator and the worker thoroughly confirm safety signals.