Originally Posted by Cinderocka1989
I've always heard the parking brake called a spring brake
That may be something swift or werner might tell their drivers but they are the tractor an trailer air valve parking brake. I never use my trailer valve unless dropping the trailer tho I had the trailer brakes freeze in whitefish montana 20yrs ago in a 85 pete 359, an lord have mercy I bout froze to death trying to de ice them with a damn hand torch I got from ace hardware. Oh that was a life learning exp there. Never set the trailer brake in cold weather unless the trailer is gonna be dropped.