Checking Actuator Travel Of Parking-Brake Shoes

Information 

The actuator travel of the parking-brake shoes only needs to be checked for brake discs with an aluminum brake hub. Aluminum brake hubs are installed on the following brakes:

• PCCB 

1. Close electric parking brake using the button.
2. Read out left/right actuator position.
   1. 2.1 PIWIS Tester  must now be connected. Then select Brake electronics (PSM) > Actual values/input signals > Left actuator position and right  actuator position.
   2. 2.2  Follow the instructions on the Tester.
3. If the value is greater than > Length 4.5 mm  , perform calibration.

   > 468316 ADJUST AND CALIBRATE THE PARKING-BRAKE SHOES