
09/05/09, 10:08 AM
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Join Date: Feb 2009
Posts: 473
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Quote:
Originally Posted by Truckinguy
You got that right! I drive a tanker and when it starts to get sloshy it's a real challenge. If you can shift with the forward wave it's pretty good, shifting is easy, but if you mess up the rhythym and start shifting against the wave, it's a real challenge.
If you have to come to a quick stop, the liquid hitting the front of the trailer sounds like a sledgehammer hit the back of the cab. Then while I sit at the traffic light the truck is slowly rocking back and forth. When we have half a load in an 8000 gallon trailer (no baffles) that's 40,000lbs rolling back and forth. It takes some practice to shift with that.
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Product density can make it worse, the heaviest I was involved with was Titianium Dioxide Slurry @ 22lb/gal [2,350 gal = 45,000#] but the best one was watching a Sulfuric acid [15.45lb/gal] driver 'get' a new night mechanic.
He found a flat and came back to the shop & stopped on the ramp up into the shop and rocked the load a few times b/4 pulling in and locking down the brakes.
He grabbed the new kid by the arm and stuck his head down to see the flaw in the tire. I was standing there listening to the product rebound off the back head. When it hit the front the whole rig slid forward about 1.5 feet w/ the locked wheels laying rubber on the floor and squeeling. The new kid jumped about about two feet straight up!
I always enjoyed to look on trainees faces when I told them not to apply the parking brakes on the scale & would walk away w/ the rig slowly rolling fore and aft about 6" - 8" allowing the scale to weigh the product and not the liquids motion...
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