jd4930 - 10/8/2024 10:24
ShopTeacher - 10/8/2024 09:36
Your trailer is old enough that it does not have spring brake chambers for the parking brakes. The system is doing what it is supposed to do, when the trailer air supply (red button) is pulled out, air from the trailer air tank is sent to the brake chambers to apply all the brakes.
Something is binding with that slack adjuster, S-cam, or brake chamber. Possibly yoke between brake chamber rod and slack adjuster?
Too old for spring brakes but new enough for anti lock?