Implement calibration for TrueTracker system 14 TrueTracker setup
Coulter wheel track offset method
WARNING – The steering coulters can move abruptly during the Proportional Steering Gain procedure while the
TrueTracker system tests the hydraulic response to the steering commands.These sudden movements can cause
collisions with nearby obstacles or cause injury.Be prepared for sudden steering coulter movements.
1. Drive the tractor to a relatively flat field where tire impressions are visible and where you can
complete passes of at least 400 m (1320ft) in length.
2. Reset the roll offset value to 0 (zero).
3. Start a new field.
4. Create a straight AB Line.
5. Create a clean set of tire tracks in the field. To do this, start a new pass away from the area
where the AB Line was created. When the system is stable, engage automatic steering mode
and allow the Autopilot and TrueTracker systems to complete the pass.
6. At the end of the pass, turn the tractor around to return along the same pass from the
opposite direction.
7. Engage automated steering mode and allow the system to complete the pass.
8. In the middle of the return pass, stop the tractor and confirm that the current position is
directly on the AB Line. This ensures there is no cross track error.
9. Park the tractor and exit the cab. Evaluate the coulter wheel track pattern between the first and
return paths.
10.
Measure the difference between the track passes and record the distance. Also note whether
the return pass is to the left or the right of the original pass. Record the results.
Note – The offset should be consistently to the left or right.
Test Run Offset distance Offset direction
1
2
3
Total =
Total / 3 (average offset value) =
288 FM-1000 Integrated Display User Guide Version 9.25, Revision B
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