Autopilot steering system 4 Vehicle guidance setup
l The point at which steering movement occurs
l The minimum valve command required for steering movement
In this test, the system gradually actuates the steering system while determining the independent
left and right point at which wheel movement occurs for each direction.
Run the Deadzone calibration until the Deadzone value displays for each side a change of less than
0.5 units.
The calibration is run multiple times and a progress indicator displays on the display during each
phase of the calibration. After each phase is completed, the display will prompt the user to steer the
vehicle in a particular direction.
Pre-calibration
1. Warm up the vehicle. The hydraulic fluid must be at normal operating temperature for
deadzone calibration.
2. If you perform the deadzone calibration while the system is cold, repeat the Automated
Deadzone calibration again when the system is at operating temperature.
3.
Prepare the steering sensor. If the vehicle has:
ll An AutoSense device, drive the vehicle in a straight line for at least one minute.
l A Potentiometer, first complete the Steering Sensor calibration
Calibration procedure
WARNING – During calibration the vehicle will turn slowly either to the right or to the left. The vehicle may move
in an unpredictable manner. To avoid injury, be prepared for vehicle movements.
Note – To minimize the amount of open area required for the complete calibration, you may
reposition the vehicle between the phases of the test.
During calibration, the vehicle will turn slowly either to the right or to the left. The vehicle may move
in an unpredictable manner. To avoid injury, be prepared for vehicle movements.
1. Drive the vehicle to a large field that is without hazards or obstructions. The field should have
smooth soil conditions.
2. Begin the Deadzone Calibration wizard and then write down the and write down the Right
deadzone value and the Left deadzone value. This will be used for comparison purposes after
you have run the test.
3. Run the calibration wizard, reading and following all on-screen instructions and taking note of
all warning messages.
4. Move the vehicle straight forward in first gear at a maximum operation RPM and at a speed of
approximately 1.6 kph (1 mph) and then tap .
Version 7.0, Revision A CFX-750 Display User Guide 75
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