CAME A3024N Manuel D'installation page 27

Determining the opening end-of-travel points
Perform these operations on both gearmotors.
Release the gearmotor.
Manually open the leaf to the desired point.
Unscrew the screws in the opening microswitch assembly.
Slide the microswitch assembly along the boom until it is activated by the slide guide fixed on the nut bushing.
Secure the microswitch assembly to the boom again using the screws.