Cim: Naters : Did wood chips like this for a long time. Most often I would drop the trailer on the ramp but there were a few that took the truck and trailer up.

Dookiedolf usually there is nothing holding the truck and trailer to the ramp other than gravity.

In fact during the winter when chips could freeze to the trailer and not dump out I used to leave a few inches of space between the backstop of the ramp and the trailer.

as it lifted the trailer the trailer would slide back and hit the backstop breaking the wood chips free from the trailer and assuring that you emptied the load..

Com: You dnowme : I'd only use a Company truck on these. Engines are designed to allow for "sloshing" around of oil,

but to continuously push hot motor oil against the back seal of an oil pan, can't be good long term.

Seems like opening the tarp, dropping a hook and driving out from under the hook would not only be more efficient but take up less room in the unload lot if maximizing load weight is this tools goal in life..

Paper and pulp mills, pellet makers, almost anyone who buys wood residuals for a variety of reasons dump trucks like this everyday, and were are talking thousands of them. The main 2 mills in the town where I work as a dispatcher each dump well over 200 trucks a day alone. Its a common, safe, and effective way to quickly unload wood residuals of all types. We do have walking floor trailers we use to deliver materials to smaller retailers of wood residuals, like bark yards, shavings for animal beds etc that only require a few loads a week and don't have full size truck dumps. This has also been a common method for dumping trucks for farmer's at grain elevators all over the mid-west for decades. It does not hurt the tractor or trailer at all if you follow proper dump procedures and obey the safety rules.