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Why they call them 400 ton dump trucks.

I'm surprised something this expensive doesn't have some computer controlled safeguards to prevent this. I know it's gotten harder to tip over a boom crane these days with all their computer controls to keep them upright. The millwrights at work once were pulling the crank on a press, but to do so it required two cranes because they didn't have the headroom to pull it straight up. They had this thing suspended 40 feet in the air and the crane shut down. They had to call NYC to have them override the safeguards remotely to get the crank on the ground.
 
I've seen that some trucks at the very least have a readout saying what the load is, however that readout doesn't prevent the excavator operator from continuing to load it in. If you notice, it looks like he's right next to the pile. My guess is that they were trying to hurry and toss in a couple extra buckets.
 
Originally posted by: Demon-Xanth
I've seen that some trucks at the very least have a readout saying what the load is, however that readout doesn't prevent the excavator operator from continuing to load it in. If you notice, it looks like he's right next to the pile. My guess is that they were trying to hurry and toss in a couple extra buckets.
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This is likely the case. It seems odd though as most of the large mines have gone to automated dispatch systems where every truck movement and shovel load is centrally sequenced.
 
This reminds me of those stupid Chevy and Ford pickup commercials where they drop a pallet load of bricks into the bed of the truck from 4 feet up to show how "Tough" it is. You know damn well they've just blown out both rear shocks and made one hell of a dent in the bed of that truck.
 
Originally posted by: Squisher
I'm surprised something this expensive doesn't have some computer controlled safeguards to prevent this. I know it's gotten harder to tip over a boom crane these days with all their computer controls to keep them upright. The millwrights at work once were pulling the crank on a press, but to do so it required two cranes because they didn't have the headroom to pull it straight up. They had this thing suspended 40 feet in the air and the crane shut down. They had to call NYC to have them override the safeguards remotely to get the crank on the ground.
Click to expand...

hehe...our millwrights managed to dump a crane a couple of weeks ago...
 
they overload those trucks all the time. IMHO, it was probably fatigue failure from constantly being overloaded and not from one simple overload.
 
We had to pull off the road twice yesterday to let haul truck beds pass by. If they weren't for this model, they were from something just as big. The beds were wider than the two lane road, almost three lanes wide. Sorry, no pics. They were heading toward Green Valley, AZ and so I guess the Sierrita copper mine.
 
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