CLAAS Id7838h / 7838h – HYD (A60): Valve 1 is disconnected from the CSM because it is locked

Valve 1 becomes unavailable. The system will attempt to launch the CSM sequence again after 20 seconds.

• Axion 810
• Axion 820
• Axion 830
• Axion 840
• Axion 850
• Axion 920
• Axion 930
• Axion 940
• Axion 950
• Axion 960
• Arion 510
• Arion 610
• Arion 640

1. 1

   Wait 20 seconds to see if the system automatically relaunches the CSM sequence

2. 2

   Check the connectors and continuity of the wiring harnesses linking the HYD (A60) module, the EXT (A62) module, and Valve 1

3. 3

   Check for any short-circuits or open circuits in the Valve 1 circuit

4. 4

   Check the sources of energy, including fuses, power supply, and ground connections to the HYD (A60) module

5. 5

   Check the CLAAS Sequence Management (S177) switch for proper operation and signal consistency

1. 1

   Reset the CSM

   If the 20-second automatic relaunch does not happen, manually reset the CLAAS Sequence Management (CSM) system via the terminal.

2. 2

   Inspect Valve 1

   Locate hydraulic Valve 1 (electrodistributor). Inspect the solenoid coil and hydraulic part of the valve for physical damage or mechanical seizing.

3. 3

   Test the S177 Switch

   Test the CSM switch (S177) on the armrest/console. If the EXT (A62) module detects an inconsistency in the switch status, the sequence cannot be started and the switch must be replaced.

4. 4

   Clear Codes

   After repairing the wiring, replacing the valve, or replacing the switch, clear the error codes from the EEPROM memory.