Release the Spring Brakes on the Trailer
m2+ d 11.06.009b
- Push the bottom of the red trailer air control.
- Verify that the LEDs on the red trailer air control extinguish.
- Verify that the LEDs on the yellow parking brake control remain extinguished. See Fig.Tractor Parking Brake Released and Trailer Spring Brakes Released.
- Drive the vehicle and verify that all trailer wheels are free-rolling.
