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Old 04-11-2011, 12:16 AM
 
Location: SF Bay Area
5,996 posts, read 13,290,022 times
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Wow.

Video: Driverless John Deere tractor terrorizes Walmart parking lot — Autoblog
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Old 04-11-2011, 02:07 AM
 
Location: Eastern Missouri
3,054 posts, read 5,029,987 times
Reputation: 1377
Opps !
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Old 04-11-2011, 02:49 AM
 
52 posts, read 48,282 times
Reputation: 65
Oh Deere!
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Old 04-11-2011, 05:47 AM
 
Location: U.S.A.
3,306 posts, read 9,011,854 times
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I am impressed... seems to be a precision machine. It maintained numerous perfect circles despite jumping a curb every rotation and even after smashing into cars and trees. Looks like no damage was done to the tractor at all.
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Old 04-11-2011, 06:07 PM
 
Location: SF Bay Area
5,996 posts, read 13,290,022 times
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Quote:
Originally Posted by Lux Hauler View Post
I am impressed... seems to be a precision machine. It maintained numerous perfect circles despite jumping a curb every rotation and even after smashing into cars and trees. Looks like no damage was done to the tractor at all.
Agreed. I was wondering how it managed to maintain a perfect circle after running into so much stuff. I'm also puzzled by the police circling the lot for no apparent reason. The police spent a good amount of time doing absolutely nothing with a dangerous object roaming the lot.
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Old 04-11-2011, 06:32 PM
 
Location: Great Plains
25,584 posts, read 30,508,156 times
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Well the steering is controlled by a large hydraulic cylinder. The wheel steers like a car steering wheel however there is no mechanical connection between the steering wheel and the front wheels. Deere has used that design for 50 years. This is a machine that is designed have close to 10,000 or more of weight on the front end. The axles are solid cast.

There was a case years ago with another runaway deere, the owner was able to shoot the fuel filter to stop the machine.

The tractor itself didn't look to be damaged. That blade took a major beating. I would be intersted in finding out how it took off and run on its own though. There are safety features that require that the tractor be out of gear or in park to start it.
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Old 04-11-2011, 06:38 PM
 
Location: South Jersey
7,780 posts, read 17,786,405 times
Reputation: 2295
whoa.... The light pole stopped it.. And the transmission too..
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Old 04-11-2011, 06:43 PM
 
Location: U.S.A.
3,306 posts, read 9,011,854 times
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Quote:
Originally Posted by frankgn87 View Post
whoa.... The light pole stopped it.. And the transmission too..
Its hydraulic drive system so I'm guessing the pump reached it's pressure limit and was just bypassing or whatever couples the engine to the pump (clutch?) gave way. I don't know though... seems like it would have enough torque to spin the tires.
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Old 04-11-2011, 06:49 PM
 
Location: Great Plains
25,584 posts, read 30,508,156 times
Reputation: 22713
Quote:
Originally Posted by Lux Hauler View Post
Its hydraulic drive system so I'm guessing the pump reached it's pressure limit and was just bypassing. I don't know though... seems like it would have enough torque to spin the tires.
I am guessing it had a powerquad transmission that is not hydraulic drive. Or some form of a power shift. Either way mechanical drive with either gears or clutch packs.
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Old 04-12-2011, 01:26 PM
 
9,326 posts, read 11,249,863 times
Reputation: 5972
" This would never have happened at Target " lol ( comment )

The most amazing thing ( besides the tractor destroying things ) were the police who ..( count how many police cars ) just sat in their cars doing nothing....

If the guy in the overalls, who stopped the tractor ( not really, the pole did ...) if that was *HIS* tractor, he has to be embarassed.....
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