CLAAS 765Dh – Claas Tr2 A57 2 Transmission Module: Claas Power Management function faulty due to loss of information from engine speed sensors

The Claas Power Management function is faulty because it is losing information from the engine speed sensors. This issue occurs specifically in the C and D ranges. The fault is related to the engine speed sensors located on the PTO clutch housing and the gearbox primary shaft.

1. 1

   Adjustment of the 2 engine speed sensors (B228-1, B228-2)

2. 2

   The engine speed sensor (on PTO clutch housing) (B228-1)

3. 3

   The engine speed sensor (on gearbox primary shaft) (B228-2)

4. 4

   The “Auto 5” module using tool n° 60 05 033 249

1. 1

   Check and adjust the 2 engine speed sensors (B228-1, B228-2)

   Ensure the sensors are properly adjusted according to the service manual.

2. 2

   Inspect the engine speed sensor (on PTO clutch housing) (B228-1)

   Verify the condition and connection of the sensor located on the PTO clutch housing.

3. 3

   Inspect the engine speed sensor (on gearbox primary shaft) (B228-2)

   Verify the condition and connection of the sensor located on the gearbox primary shaft.

4. 4

   Check the “Auto 5” module

   Use tool n° 60 05 033 249 to inspect the “Auto 5” module and replace it if necessary.