When these trucks go up in flames, its a major catastrophe area especially if the truck is carrying coal.  The tyres are also prone to being combusted with the initial heat of the main fire. I hope the driver got out ok.

Below, the front wheels have collapsed under the weight of both the truck and its payload.  Maybe some better engineering design is called for.

Well it appears that they keep on falling over.  It seams highly improbable that trucks as big and heavy as these could actually fall over...but alas...they do !

The driver stands in the back of the trucks dumper and the size of these trucks can again be appreciated, albeit a strange angle.

Visibility for the drivers must be a problem in these trucks, if they are not driving over cars then they are driving over cliff edges.

Lucky that the truck didn't go end over and flip it onto its back.

This truck drove over  a large boulder visible under it and broke its rear axle in the process.  There's a fair bit of wear on those tyres too.

Apparently this truck rolled down the embankment first then flipped over onto its side.

Three wheels on my Wagon.....

Both front wheels became 'disengaged' from the rest of this truck and the front end dropped and bedded in to the ground.

The rear set of double wheels have sheared off from the drive hub of this truck.  I should imagine that these trucks suffer a lot from metal fatigue and stress from the terrific weight that they carry every working day, sometimes in the hundreds of tons.

A closer view of the sheared off wheels. and I mean literally sheared right off !

Sometimes the entire rear section can break away.  Maybe they ought to redesign these trucks and make the components a bit stronger.

The two images below show what happens when one of these trucks rear wheels goes down a pot hole.  The entire truck wants to follow it down with its colossal weight helping it.  The truck under carriage distorts and the rear axle is wrenched away from the rest of the chassis.