CLAAS A143h: Fault Code A143h - 8 Valve Does Not Reach Float Position

The 8 valve does not reach the float position within the specified time. This issue may be caused by low oil viscosity due to low temperature, which affects the valve's performance. The 8 valve returns to neutral, and the problem may resolve after warming up the tractor.

1. 1

   Oil temperature and viscosity

2. 2

   Operation of the 8 valve

3. 3

   Tractor warming procedure

1. 1

   Check oil temperature

   Ensure the oil is at the recommended operating temperature. Low temperature may reduce oil viscosity and affect valve performance.

2. 2

   Warm up the tractor

   Allow the tractor to warm up fully before testing the operation of the 8 valve.

3. 3

   Test the 8 valve

   After warming up, test the 8 valve to determine if it reaches the float position within the specified time.

4. 4

   Replace the 8 valve

   If the issue persists after warming up, replace the 8 valve.