Dump Truck Build

[ahub86]

(01-23-2021 )2dlb Wrote:  Nice Job. This looks like a well thought out project. I'm not sure if i missed it or if it was mentioned, In all our triaxles that have air ride the dump valve is tied to the PTO so that as soon as the PTO is engaged the suspension is dumped. This is the Golden Rule with air suspension. Its unbelievable how little mud or dirt stuck in the front corner it takes to move the center of gravity over the frame and air in the suspension only helps then to roll er over. I'm sure driving this yourself that may seam extreme but the day you hire a driver you might want to think about it. One other note, the moment that the hoist begins to lift the load, the frame below the hoist takes a considerable amount of load for example a 6" hoist needing 2500 PSI to lift will exert 70650# against the frame, this is only for the initial as the dump body works on a diminishing load theory however most of our double frame Binders have had to have a repair and a 3rd section of rail added below the hoist. Our gross weights run a little higher here the same configuration at max here gets us 82830lbs or 37650kg. Nice Post

Thank you. I have to agree there... any dump truck frame I have ever seen broken is near the hoist. Except for one time a local farmer forgot to unlatch the tailgate when he dumped. The load went to the back and the truck frame bent upwards. Like an upside down U Oops. I will take your advice and look into making the suspension dump with the PTO. I will be dumping it every time anyway, and that will keep me from forgetting. Thanks again.