| Is necessary to keep air brakes functional | |
| Is recommended to keep air brakes functional | |
| Can reduce air brake functionality | |
| Ha no impact on air brake functionality |
| Monthly | |
| Daily | |
| Weekly | |
| Hourly |
| Apply the air brakes gradually | |
| Switch between spring and air brakes | |
| Apply the spring brakes gradually | |
| Apply the spring and air brakes together |