Another sittuation of unload mini shovel from the truck

Any accident foreseen in this frame?

An operator worker is about to load a mini excavator on a truck at the construction site of a housing complex. Because ordinary ramps are not available, he uses two plates originally used as concrete formwork. One of them is 17 cm in width x 1.6 m in length in size and the other is 17 cm in width x 1.45 m in length.
Meanwhile another worker is collecting the scattered shreds of construction materials to clean the site.


Now what accident do you anticipate from this picture?



This is the accident resulted!

A moment before the mini hydraulic excavator finished climbing over the edge of the truck, it suddenly lost balance and fell off on the ground on the right side. The operator jumped out of the machine unhurt in time, but the worker was crushed under the fallen machine.


Tips for forestalling similar accidents

1. Choose ramps best suited to construction vehicle, when loading and unloading them on a truck or trailer, and install them securely in the truck/trailer at an angle lower than 15 degrees.
2. Post a conductor for the work, while off-limiting the working area.
3. Determine working procedures as well as method for the work beforehand, and make sure that they are disseminated among those concerned.