Using the track marker
If the implement is lifted when Change is pre-selected, the job computer actuates the track marker valves. If work is started without actuating the tractor control unit, the position will be faulty. The active track marker folds in partially due to the ground resistance. The opposite track marker is partially extended due to the oil overflowing.
To prevent the track marker from moving to a faulty position:
Actuate the green tractor control unit.