CLAAS Id77A0h – HYD (A60): Cross control activation contact remained pressed for more than 6 seconds

The cross control activation contact remained pressed for more than 6 seconds, causing the hydraulic system to disable the affected circuits and render Electrodistributors 4 and 5 inactive.

• Axion 800 Series
• Axion 810
• Axion 850
• Axion 900 Series
• Axion 920
• Axion 950

1. 1

   Check the Electropilot cross control locking contact (Component ID: S183) to ensure the switch is not mechanically seized, stuck in the depressed position, or obstructed by debris.

2. 2

   Check the MFA (A100) armrest multifunction module to verify that the module is receiving and processing the switch signals correctly.

3. 3

   Check the connectors and continuity of the wiring harnesses linking the S183 contact and the A100 module.

4. 4

   Inspect for any short-circuits to ground or open circuits in the wiring.

5. 5

   Check the sources of energy (fuses, power supply, and ground connections).

6. 6

   Check the component's resistance to verify internal electrical integrity.

1. 1

   Document and Analyze

   Note all error codes present on the CEBIS terminal. Analyze if other codes are interacting with Id77A0h to identify the root cause.

2. 2

   Inspect the Switch

   Physically inspect the Electropilot cross control locking contact (S183) on the armrest. Clean any dirt or sticky residue that might cause the button to physically stick.

3. 3

   Test the Harness

   Disconnect the S183 switch and use a multimeter to test the continuity of the harness back to the MFA (A100) module. Repair any damaged wiring.

4. 4

   Test the Switch

   Test the S183 switch for proper momentary continuity. If the switch fails the resistance test or remains closed when released, it must be replaced.

5. 5

   Clear and Retest

   After cleaning, repairing wiring, or replacing the switch, clear all error codes from the system memory.

6. 6

   Final Validation

   Operate the tractor and test the cross control activation to ensure the anomaly does not reappear and that Electrodistributors 4 and 5 have regained functionality.