Posted 1/26/2011 19:20 (#1574527 - in reply to #1574336) Subject: RE: Air brakes on trailer won't release, need help.
NC ND
On some of those old construction use trailers they had a different type of system. When sitting parked there is no parking brake, when you hook up the brakes apply, they will not release until the system builds up completely with air, on the old gravel trailer I have sometimes it takes 10 minutes. Otherwise valves screw up pretty regular, especially when sitting.
Air brakes on trailer won't release, need help.
