Quote:
Originally Posted by BIG JEEP on 44's
not sure but probably enough to push that trk/trlr...If the tractor breaks were not set it's all on the driver however if tractor breaks were set I put blame on who unloaded it ...I've been pushed when loadedd by a tractor that was on loose gravel don't know about aluminum decking ...But I have no facts here I don't even know if truck/trlr were moved before the pics taken ...Now it would really suck to pull a swift and not set your breaks ,And if this was a swift flatbed I would'nt even think 2x...OUCH
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There are some forces that need to be overcome. First angle of force would be the concrete wall that would be about a foot, with a tire that is approximately 4 feet tall. Close to equivalent to a care tire vs a curb. Next is the brake shoes on the trailer. If properly set, do not roll.
Now the tractor only weighs 23,000 lbs, the rear being heavier than the front for tractive purposes, would push the front end up over relativily easily. The front end would have approx 8-10K on it.
Now you have the truck. A TMC Peterbilt with a 53 foot step deck, with another tractor on the deck yet. I'm going to guess the truck and trailer weigh between 30-32K plus the another tractor would still have 53K on the truck and trailer. Yet the other tractor hasn't left it yet.
Now, which would be the easiest forco to overcome the 8K front end, , or the 53+k lb truck if the brakes are set? Now if the brakes aren't set, the rolling resistance of the truck is relatively low. Espcailly since it is unknown that he area where the truck parked is flat or slopped down hill.
I'm still not convinced that a 23K lbs tractor can push a 53K truck with with the brakes, set. Especailly when it's not directly pushing, like your saying. I also do know that a semi does not move when the brakes are set and pushing the bales to the front from the rear. I've either stalled out the tractor,or make the tractor spin.
Do you still have doubt? I don't know how any body still could. Trucks w/o brakes set roll relatively easy, when 3/4 ton pickups can pull them disabled.
I've hauled my fair share, and loaded too.