GMF has carried out the modification of the opening and closing system of the passenger doors of the Lisbon Metropolitan ML95, ML 97 and 97. Specifically, GMF has carried out the modification of the system to 93 triple units.
The works consisted of the replacement of all mechanical and electromechanical parts and all electrical components; the installation of the new Door Control Unit (PCU) and new components (door opening and closing motor, position sensors, wiring and door closing detectors); the repair and painting of all the passenger doors; and the adjustments and lubrication of the entire system.