Re: Spring brakes not releasing
Reply #6 –
My suspicious mind gets triggered when a new problem creeps up after "servicing." In this case a system pressure increase that ordinarily shouldn't have been a problem, has now caused a valve failure in a life-critical system. I'd start a new ticket and have, at least, the air portion of the braking system thoroughly inspected and parts replaced as necessary.
Most people see an air pressure gauge, a red light and an annoying buzzer. I see a pneumatic logic system designed to provide controlled application, rapid release, dual braking circuits, air pressure preservation in case of a broken air line and fail-safe brake application. If you don't do a DOT air brake test every morning, well, best you go first. I'll watch the show from the back.
Topic: Spring brakes not releasing