To replace or install an up / down sensor mounting block, please proceed as follows:
  1. Dispense the pneumatic air supply from the Stop Unit.
  2. Unbolt the four attachment bolts (M4) of the sensor block underneath the Stop Unit.
  3. Remove the sensors from the sensor block.
  4. Remove the screws completely.
  5. Mount the new sensor block in the same orientation to the Stop Unit, but do not tighten the bolts yet.
  6. Slide the sensors into the provisions and adjust the reacting distance. (Please make sure that the sensors are installed in their original location. Otherwise it will cause program failures.)
  7. Tighten the bolts with a M4 standard torque.
  8. Press the stopper pin down manually and check for ease of movement. Adjust the position of the sensor block if necessary.
  9. Connect the Stop Unit pneumatically and check for proper function.