The roof section over engine contains radiators, radiator fans (4) and radiator fan contactor box. on top of hatch is winterization hatch that returns hot air from radiator back to engine room in winter to keep engineroom presurized and feeds warm air into engineroom for traction motor blowers, this prevents snow intake into traction motors, and keeps them dry.
If Conductors are in charge, why are they promoted to be Engineer???
Retired Triebfahrzeugführer. I am not a moderator.