Posted 2016-04-20 7:51 PM (#166834) Subject: Air Brakes?
New User
Posts: 4
Is there a such a thing as air brakes that work within the trailer without having to do any special modifications to a truck? I'm looking at a 2+1 that has air brakes and am told it can be towed by any truck. I can't seem to find anything online about this and don't have the slightest idea on how breaks work to begin with! Any information would be great!
Posted 2016-04-22 3:49 PM (#166856 - in reply to #166834) Subject: RE: Air Brakes?
Extreme Veteran
Posts: 379 Location: Missouri
I know of trailers with hydraulic brakes that any truck can pull. But I've never heard of a trailer with air brakes that a truck with out air brakes could pull. Probably a misunderstanding.
Posted 2016-04-23 8:38 PM (#166872 - in reply to #166834) Subject: RE: Air Brakes?
Expert
Posts: 3853 Location: Vermont
On a vehicle with hydraulic brakes, a hydraulic/air synchronizing valve is required. With no hydraulic input to the synchronizing valve, the valve is in its rest position and no control air is permitted to flow from the delivery port of the valve.When the tow vehicle brakes are applied, hydraulic pressure causes the hydraulic module on the top of the valve to depress the valve diaphragm. This causes the supply air to be modulated by the hydraulic input. The resulting control air is proportional to the hydraulic input signal. http://saubermfg.com/wp-content/uploads/2013/03/Bludot-ABS-Air-Over...
Air Brakes?
