- Open the non-lockable cover (2 screw): Use a 6 mm Allen key to loosen the screws by approx. 1 cm and continue turning the middle screw until you no longer feel any resistance, then insert the lifting tool, turn 90° and lift off the cover.
- ALTERNATIVELY, open the non-lockable cover (1 screw):
Use a 5 mm Allen key to loosen the screws by approx. 1 cm, insert the lifting tool and lift off the cover.
- When turning the centre column to the stop, make sure the seal is seated correctly. Follow the instructions in reverse to remove.
- Close the lockable cover (2 screws): Insert the cover into the ground sleeve with the 2 screws at 90° to the marking,
turn the lifting tool back 90° and tighten the 2 screws using a 6 mm Allen key.
- ALTERNATIVELY, close the non-lockable cover (1 screw):
Insert the cover and tighten the screw with a 5 mm Allen key.