45 | |
9 | |
10 | |
8 |
Rear of front trailer closed, rear of back trailer closed | |
Rear of front trailer open, rear of back trailer closed | |
Rear of front trailer open, rear of back trailer open | |
Rear of back trailer open, rear of front trailer closed |
Use engine braking and ride the brakes down the grade | |
Make sure you`re in the proper gear, use engine braking and apply the brakes firmly when necessary | |
Make sure you`re in the proper gear and use trailer brakes only | |
Supplement the air brakes by using the spring brakes |