Case IH A-G-555 - Display – Display: Wheel Calibration Center Offset Too Large

The fault code A-G-555 does not exist in the Case IH ecosystem. It combines unrelated technical terms, including a Siemens CNC alarm for center offset. If a Case IH machine experiences a wheel calibration offset issue, it is typically related to the AFS AccuGuide system failing to converge on a swath line due to incorrect implement geometry settings (inline offset) or a miscalibrated Wheel Angle Sensor (WAS).

• MAGNUM AFS Connect
• STEIGER AFS Connect
• Maxxum (110, 115, 120)
• Puma
• Patriot Sprayer

1. 1

   Verify the physical steering cylinder rod length (must be within ¼" on both sides).

2. 2

   Check the "Antenna Center Offset" and "Inline Offset" measurements in the Pro700/Viper 4 display to ensure a negative/positive value wasn't entered incorrectly for the implement or GPS receiver.

3. 3

   Check the Wheel Angle Sensor for physical damage or loose linkage.

1. 1

   Navigate to Calibration

   Navigate to TOOLBOX > CALIBRATION on the AFS display.

2. 2

   Select Calibration Type

   Select "Rear Wheel Position" (or Steering Angle Sensor calibration) from the drop-down list.

3. 3

   Drive Machine

   Drive the machine straight forward at 2–6 km/h in a wide-open area.

4. 4

   Turn Steering Wheel

   Follow the on-screen prompts to turn the steering wheel full lock left and right.

5. 5

   Save Calibration

   Press OK to save the new center position.