Transcraft eagle super beam

The first thing I'd check is to make sure there's not a inline filter plugged up on the emergency side supply going to the tank/valve on the trailer. Some trailers have them, some don't.

Trace the the lines on the brake chamber thats on the fitting closest to the rear section (spring brake side) of the brake chamber back to the full function valve or spring brake valve on or near the air tank of the trailer. That's the valve you're wanting to know about.

Being it's a 95, it most likely doesn't have ABS unless it's been retrofitted. The none ABS valves are super exspensive compared to the Wabco or bendix ABS valves.

Good luck

 

Also, theres so many different setups that have been used over the years, it could be any number or combination of valve.

Here's a common one you see on older trailers

This is a Bendix

 

Has it always been operating this way or is this a new action. We had a number of transcraft trailers, early 2000’s that had a delay set in the brake release, you had to wait like a minute for the spring brake to release. Company had about 40 of them, all had this setup. Not sure what it was supposed to do, maybe ensure the air tanks were at full pressure before it would move?

 

If you trailer dumps the bags when the parking brake is set , there will be a delay before the brakes release because the bags are filling as well as the brakes releasing.

 

Actually, with the trailers my company has the brakes will release right away and you have to pay attention that you don't tak off with a winch sitting on a tire before the bags air up.