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[cos918]

hi all well here how to get them off a truck with out a ramp.

john

http://uk.youtube.com/watch?v=FE02TxLlRQU&feature=related

[Seaspray]

I think they're still down the Medway City Estate end of Whitewall  Road on the corner.

Years ago you had to take the rear trailer wheels off. Lately I've seen them disengage the trailer just behind the 5th wheel arch lowering the nose of the trailer to the ground. I've also seen the digger drivers drive of the trailers with the aid of the bucket

Seaspray

[catengineman]

Before swan and goose neck drags the way to load and unload was with a few old railway sleeper lumps and drive off the side of the waggon.

now with modern drags it is easy to demount the fifth wheel from the bed and drive the machine straight off.

I have done both and to be honest its quicker to climb off the side ! but the truck owners dont like it that much as there is a risk of some edge damage if you get it wrong.

R,

[Martin (Admin)]

A Big Digger weighing 8 tons is on top of a flatbed trailer and heading east on Interstate 70 near Hays, Kansas.

 The extended shovel arm is made of hardened refined steel and the  approaching overpass is made of commercial-grade
concrete, reinforced with  1 1/2 inch steel rebar spaced at 6 inch intervals in a criss-cross pattern  layered at 1 foot vertical spacing.

 Solve: When the shovel arm hits the overpass, how fast do you have to be going to slice the bridge in half?? 
 (Assume no effect for headwind and no  braking by the driver...)

 Extra Credit: Solve for the time and distance required for the entire rig to come to a complete stop after hitting the overpass
at the speed calculated above?  Yes, you can neglect friction.  USE MPH or KMH 

[meechingman]

And the amount of time the truck driver has left in employment will be inversely proportional to the cost of the new bridge.

[omra85]

and for 20 brownie points - why is the arm in the MIDDLE of the slot? Did it "recoil"? Or did he try to reverse out?? 
I can work out why the two side ballustrades are intact, the arm must have hit the underside corner and 'jack-knifed' upwards, but why did it end up THERE 
Also, if it was travelling from right to left (indicated by the cut in the side of the bridge) how did the arm end up HIGHER than the sides given that the machine is still flat on the ground? Surely the arm would be pushed downwards?  If it was travelling from left to right, as I initially thought, how did the cut get right to the side but didn't damage the ballustrade, and then end up some distance back from the 'end' of the cut??
Come on Martin - tell us 
Danny

[tigertiger]

A good ad for the toughness of Hyundai plant.

[catengineman]

The excavator boom and dipper arm are pivoted at several points, the arm would have been "stowed" in the folded position, this has left the dipper ram head at the most highest and the most furthest forward point,
As it struck the bridge the fulcrum action started to lift it which caused further hight thus the dipper/boom broke through the road surface but had not at that time damaged the first balustrade, momentum would carry the steel construction through the "box section" concrete all the time lifting the boom/dipper at an ever increasing angle, The low loader trailer grounded out and a final resting place for the machine ensued. the trailing balustrade is damaged by the "flicking up of the attached loading bucket, this is able to do as there is no longer any hydraulic oil within the ram and pipe work system to stop it from movement.

Sadly this type of accident has happened in England (South London) 5 persons died when a walk overpass was hit in the very same way.

[Roger in France]

I think it is just photo fakery. There are just so many improbables but above all the forces at work are so incredible as to give the lie to the images.

Roger in France

[malcolmfrary]

A rather narrower bridge over the Whalley bypass got swatted in a very similar way about 25 years ago.  Remember that bridges are built for lightness and the ability to not fall down under load - they are not built to withstand attack from the side apart from the legs, which can usually be relied on to attract some attention within their expected lifespan.  The edges will be heavily built, the bit between the side less so, hence the right hand side appears relatively undamaged, but the underside and far side have suffered as the rather solidly built steel arm was wedged through.
Strange things happen when energy gets dissipated in an accident.

[Martin (Admin)]

What ever the operator of this track hoe gets paid, it is  not enough!

This tower was built to show off the physical power of the excavator.

Thanks to Big Jim for sending me this video of the climbing JCB ( Liebherr )

http://www.youtube.com/watch?v=RobaJKGMMiE

[oldiron]

  Great video........what a promotion!

John

[gondolier88]

Wow, absolutley amazing.

And was that the spice girls n the studio?!?!? Bonus!

Greg

[Nordsee]

On a similar thread has any one out there watched the team from H E SERVICES "dancing diggers" OH that company also hold the record for the fastest NON STOP drive from John-O-Groats to Landsend in a JCB 3CX.   they have a bobcat which is used to wheelie and a fleet of construction machinery that is used in their displays.

http://uk.youtube.com/watch?v=tlBAgLQGV3s

http://uk.youtube.com/watch?v=vQq4cseYq9g&feature=related

http://uk.youtube.com/watch?v=TsOIURoL-fQ&feature=related

I dont think these clips are of H E Services though.

Having driven Bobcats I can assure you it is relatively simple to get them to "Wheelie".

[portside II]

wheely the one i used was more like a weeble , had it on it's roof a couple of times and it still went back on it's wheels.
Real fun to opperate .
daz