Release the Parking Brake on the Tractor
m2+ d 11.06.009a
- Close the driver's and passenger's doors.
- Fasten the seat belt.
- Apply the foot brake.
- Apply ignition power.
- Verify that all LEDs on both controls illuminate and remain illuminated.
- Start the engine, and allow the system to build pressure to governor cut-out.
- Push the yellow parking brake control.
- Verify that the LEDs on the yellow parking brake control extinguish.
- Verify that the LEDs on the red trailer air control remain
illuminated. See Fig..
Fig. 1, Tractor Parking Brake Released, and Trailer Spring Brakes Set
Note: