signalling equipment rooms, depot signalling equipment rooms, along trackside and on-board trains; Carry out repair... Control Centre, central control (vital and non-vital), vehicle on-board equipment and lineside equipment; Install, service...
. Perform time sensitive fault diagnostics and component replacement (repair in situ or inside depot) on the rolling stock..., friction brakes, batteries, auxiliary power supply and electrical equipment, car doors and doors control, ventilation and air...