CAME AMICO Serie Manual Del Usario página 25

Insert the bushing into the head attachment pin.
Bushing
Open the gate leaf and insert the pin into the gate bracket.
Secure it using a washer and nut
Attachment pin
Washer
Nut M12
Release the gearmotor (see paragraph on manual release), completely open the gate leaf, loosen the nuts of the opening
mechanical stop and position it up against the attachment pin, then secure it.
5.6 Manual release of the gearmotor
Slide open the small door that protects the release, insert the tri-lobed key and turn it.