CLAAS Id7843h / 7843h – HYD (A60) Hydraulic Module: Communication drop with hydraulic output 1

The HYD (A60) module has detected a communication drop with hydraulic output 1. When this occurs, the sequence is stopped and recorded in the EEPROM. The system will wait for the sequence to be relaunched or reset.

• AXION 810
• AXION 830
• AXION 840
• AXION 850
• AXION 920
• AXION 930
• AXION 940
• AXION 950
• ARION 500 series
• ARION 600 series

1. 1

   Ensure the HYD (A60) module is receiving power and communicating on the CAN bus

2. 2

   Inspect the electrical wiring harnesses linking the HYD (A60) module to the hydraulic output 1 valve

3. 3

   Inspect the electro-hydraulic valve (electrodistributor) for hydraulic output 1

1. 1

   Inspect Connectors and Continuity

   Check the connectors and the continuity of the wiring harnesses linking the HYD (A60) module to the hydraulic output 1 valve.

2. 2

   Check for Circuit Damage

   Test the wiring for any short-circuits to ground/power or open circuits.

3. 3

   Test the Component

   Check the resistance of the hydraulic output 1 solenoid/valve.

4. 4

   Verify Power Sources

   Check the sources of energy, including fuses, power supply, and ground connections to the A60 module and the valve.

5. 5

   Check Operating Conditions

   Inspect the valve for mechanical seizing, excessive temperature, or abnormal pressure conditions.

6. 6

   Reset and Retest

   If a wiring fault is found and repaired, or a component is replaced, clear all error codes from the system. Try operating the tractor's hydraulic output 1 again to verify if the anomaly returns. If the sequence is locked, reset the CLAAS Sequence Management (CSM).