English to Italian Tech/Engineering Mechanics / Mech Engineering

Lower the actuator onto the valve in such a way that the insert bush, assembled on the valve stem, enters the actuator drive sleeve.
This coupling must take place without forcing and only with the weight of the actuator.
When the insert bush has entered the actuator drive sleeve, check the holes / pin of the valve flange meet the actuator holes and pin, otherwise rotate the mounting bracket to obtain a right assembling.