I'm baaaaaack!!!!!!!!

I keep getting the trailer and tractor brake lines mixed up. I know ones red and ones blue. Also keep getting the hooking up of the trailer steps confused

 

Ok then unless i am mistaken the yellow valve is the trailer valve that is used for testing trailer brakes. The red valve is the tractor air valve. With those valves which position is open and which is closed

 

Ok so i gotta remember that on the test. The book didnt show a picture is why i kept forgetting

 

ok let me try to help the yellow button is for charging the trailer air system when pushed in the red line is now connected to the air system and releases the parking brakes on the trailer the only testing is checking for leaks when you push in the red button that releases the parking brakes on the tractor so a quick review [ buttons in brakes released - buttons out brakes set- red tractor yellow trailer

 

Ok the book mentioned a trailer brake test. Something about pushing the yellow button in and making sure the trailer moves. From what another driver explained to me its to make sure the lines aren't crossed

 

That was one of the things I kept getting confused on. Im slowly starting to understand combination vehicles. I just have to remember the basics