please explain the 4 steps in the air brake system.?

Answer 1

ahaha my friend im taking the cld test shortly, here are the steps

1. if the psi is at 125-135 psi you wanna make sure that your in Neutral and your brakes are activated then you want to get out chock the wheels on your side, and turn off the engine but put the key back into where you can see your air pressure

2. Release the brakes ( trailer and cab ) and push down on the break pedal the rate of drop should be 4 psi per min

3 at 65 psi the warning buzzer will come on warning you the air is low

4 and around 35-45 psi the spring brake will activate forcing the emergency break and the parking break to pop out.

Thats all, how that was helpfull

Answer 2

1) See cat.
2) Say, "Oh my God, a cat!!"
3) Step on brake.
4) Stop.