Ahh but here's the catch,the brakes, spring or not, all have adjuster nuts for setting the cam rod free travel (adjusting the shoes), Part of the pre trip inspections require these be checked daily, however, they can be adjusted back far enough to release the spring brakes as a means of towing a dead power unit. I had a trailer one time, got up in the mountains with it, unloaded, went to leave and as soon as I pushed the trailer brake knob in, I heard hissing, dust blew up under it, and my air started falling, the control/splitter box for the individual drums had split. Trailer was stuck in place, I backed the adjusters off, left the trailer air turned off, drove it 120 miles down state and got to a repair place in Tulare on my way to my next pickup. (praying all the way the scales would let me just pass thru,lol )
Quote:
Originally Posted by babymog
The only thing that makes it hard for me to believe is brakes. If the truck engine wouldn't run, it would have no air compressor. With no air compressor, you get 1-2 applications of the brakes, and then the spring brakes come on. The spring brakes need ~65psi to hold off, will lock up the drive axles, is a safety for air system failure.
He likely used up one applicaton stopping the rig the first time, the airbags are consuming more air, ...
|