BoxCarKidd, I think you misunderstood the breakaway. It is not a cord and a switch like on the little trailers. On the older 359 schematic that I have it is called a breakaway switch. On the newer 359 schematic it is called the trailer spring brake switch. It's function is to pass thru the primary (service) brake signal from the service brake stoplight switch to the trailer receptacle when everything is working. Upon seeing a drop in secondary air pressure, it flips when it senses 55psi or lower and sends power to the trailer brake lights regardless of the service brake line. At least that is how I read it. Sounds like I don't need it anyway.
John
Brake lights - what does DOT require?
Discussion in 'Peterbilt Forum' started by Hogleg, Dec 3, 2016.
Page 2 of 2
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
Page 2 of 2