The front trailer supports (landing gear) are up and the trailer is resting on the tractor. Make sure:

There is enough clearance between the tractor frame and the landing gear.. Section 6.4: Check for clearance. If the tractor turns sharply,

The front trailer supports (landing gear) are up and the trailer is resting on the tractor. Make sure:

ANSWER BREAKDOWN
  • A. Correct. Check for clearance. If the tractor turns sharply, the frame could hit the landing gear if there isn't enough room.
  • B. Incorrect. "The landing gear is touching the tires." is not correct. Check for clearance. If the tractor turns sharply, the frame could hit the landing gear if there isn't enough room.
  • C. Incorrect. "The trailer is tilted." is not correct. Check for clearance. If the tractor turns sharply, the frame could hit the landing gear if there isn't enough room.
  • D. Incorrect. "The air lines are tight." is not correct. Check for clearance. If the tractor turns sharply, the frame could hit the landing gear if there isn't enough room.