Csm Davis
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On a M939 series is there any way to adjust the brakes on a trailer to not engage so quickly when empty vs loaded?
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Partially closing the valve would not only slow the application, but it would slow the release as well. I think I recall reading on here that the biggest problem is the difference in behavior between S-cam brakes (on the trailer) and wedge brakes (on the truck). Not sure if there's a way around that...What about adjusting the valve at the back of the cab would that slow the application of the trailer brakes? It should affect it some, because right now on empty trailer I just unhook the service gladhand and I would like to find a better way to keep my trailer from flat spotting my tires.
I don't know but that's nuts! And I don't think that would stop the rear trailer tires from locking up.Is that why DOT inspections catch so many truckers with disconnected front brakes?
Like on the back of a M1008! Great idea Ron but doubt it can be rigged up.About the way is to back off the trailer brake adjustment, but the DOT frowns on that to. Does anybody know if there is such a thing as a load compensating valve tied to the rear trailer suspension, sorta like the air bag level valve.
Never heard of that. Front brakes on tractors have half the braking power rear axles do for a reason.Is that why DOT inspections catch so many truckers with disconnected front brakes?
For years big trucks didn't even have front brakes. After that they had them but there was a switch on the dash where you could turn them off. The thinking at that time was that the use of front brakes on wet roads and other slick conditions would cause the truck to skid out of control. Modern brake proportioning took care of that issue.Is that why DOT inspections catch so many truckers with disconnected front brakes?
Or do not have ABSFor years big trucks didn't even have front brakes. After that they had them but there was a switch on the dash where you could turn them off. The thinking at them time was that the use of front brakes on wet roads and other slick conditions would cause the truck to skid out of control. Modern brake proportioning took care of that issue.
I'm assuming the people that disconnect their front brakes are still operating under that old way of thinking.