Open the shut off valves of the second trailer and close the shut off valves of the first trailer | |
Open the shut off valves of both trailers | |
Open the shut off valves of the first trailer and close the shut off valves of the second trailer | |
Close the shut off valves of both trailers |
You`ll hear air escaping from the open valve | |
You`ll see the brakes on the last trailer engage | |
Nothing | |
You`ll see the emergency valve open and release air |
8 | |
45 | |
10 | |
9 |