Single/Two line Air Brakes on a trailer

[rustexpert]

I have a trailer which is czech army. It has Single Line airbrakes.

Could any body point me in the direction of some information on this system? Which I assume would be Eastern Bloc. standard for the '60s era.

Anyway as I remember from experiences with a Praga a while back; the service brakes on this worked in a pressure to apply the brakes fashion; that is non fail safe. They did fail regularly due to leaks various.

The trailer has a reservoir in the system; which would suggest brakes would come on when the line pressure in the single line dropped in a fail safe; railway brakes fashion.

However I would like to use the trailer with a tractor with Two Line trailer brakes. Any thoughts on how this might be achieved? This isn't my field really. I think I need to modify the existing to a Two Line set up or would one of the couplings on the tractor have the effect of a single line?

[N.O.S.]

There are some very good 'tutorials' on the Tube - here's one of a series explaining modern systems, look out for the other parts. Also worth searching for Bendix brake systems on there too.

 

 

 

Hope that is of help!

[Adrian Barrell]

A simple two line system is easy to do, especially if you already have diaphragms and a resevoir. An RE valve and a filter would be the minimum.