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Heavy Machinery Training

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Tim_w:
Hello  All

A few days ago Ben's men took part in a training course involving a piece of Heavy Machinery. The scenario involved an excavator with a 'person' trapped underneath the tracks. As this was a dangerous situation and more than likely un-survivable the casualty was played by a klickie 'Dummy' instead of an actor. In other word's no real klickies were harmed during this exercise.

The first two pictures show the instructor's talking through what has to be done to free the 'casualty'. It is becoming quite clear that the excavator is going to have to be lifted to free the 'Dummy'

This picture shows the 'dummy' in place under the track's.

Tim_w:
It is going to be difficult to get an airbag under the tracks without making room first. Ben’s men quickly realise that if they lift the vehicle now then it will certainly move causing more problems. Treating the casualty as if they are still living is paramount and things have to be done the hard way. So first of all we put packing any gap’s that are likely to allow movement in the excavator when it is lifted.

Tim_w:
Here we can see one of Ben’s men digging to level the ground ready for the wooden blocks, which will be used as support.

This picture show’s the wooden blocks in place after some of the soil has been removed. It is important that they are level to prevent anything slipping or moving.

With the other side supported we can now start to fill the gap underneath the tracks.

Tim_w:
While that is all going on the men at the front are preparing to place the jack under the vehicles chassis.

With the jack in position and all the packing complete we can get ready to lift the excavator.

Tim_w:
The jack has now raised the vehicle sufficiently and given us enough room to get the airbag under the tracks. It is important to continue filling in the gaps with packing as the vehicle is lifted, which the fire fighter at the right of the picture is doing.

The fire fighter lets air into the bag, which slowly starts to raise the excavator.

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