Case IH A-G-705 - Display – Auto Guidance (AG) Controller: Calibrate Steering Dead Zone

System alert indicating that the Auto Guidance (A-G) system requires a calibration of the steering dead zone (deadband). This code typically appears after a system reset, a software update, or if a steering component has been replaced.

• MAGNUM AFS Connect
• STEIGER AFS Connect
• Magnum series
• Puma series
• Steiger / Quadtrac series
• Mid-Range Common Cab Combines

1. 1

   Ensure hydraulic fluid is at normal operating temperature (cold oil will cause calibration to fail or result in weaving)

2. 2

   Verify the machine is on a flat, hard surface such as a gravel road, firm dirt, or hay field (do not calibrate on pavement or deep mud)

3. 3

   Check for and clear any active GPS faults (RTK/RTX must be converged/fixed) and steering sensor faults (e.g., A-G-700 Wheel Angle Sensor fault)

4. 4

   Ensure machine weight configuration matches normal operation (calibrate with front loader on if normally used, or off if not)

1. 1

   Warm up system

   Warm up the engine and hydraulic system thoroughly.

2. 2

   Navigate to Calibration

   On the AFS display, navigate to the TOOLBOX > CALIBRATION (or CALIBR) section.

3. 3

   Select Calibration

   Select Automated Steering Dead Zone.

4. 4

   Drive forward

   Center the steering on the tractor and drive forward in first gear at maximum engine RPM. A speed of at least 1.2 mph (2.2 kph) is recommended.

5. 5

   Perform coarse right-side test

   Tap Test Right on the display and continue moving forward while the system performs a coarse right-side test.

6. 6

   Perform coarse left-side test

   When finished, center the steering again, drive forward for 5 seconds, and tap Test Left for the coarse left-side test.

7. 7

   Perform fine calibrations

   Continue driving ahead slowly and tap Test Right, then Test Left again. The system will now perform the fine calibrations.

8. 8

   Repeat fine calibrations

   Repeat the right and left-hand fine calibrations a minimum of three (3) times until there is a change of less than 0.5 in each of the deadzone values.

9. 9

   Save settings

   Tap the green check mark (or the Save icon) to accept and store the new settings. The A-G-705 code will clear automatically.