On 6 October 1980 carriage 447M had a similar fitting added, and it was renamed the Greasing Car. It was painted bright yellow with most windows boarded over, had its traction motors removed, and large black letters declaring "OVERHEAD INSPECTION" were painted on both sides. Internally the car was fitted with a power generator and hydraulic equipment to lubricate the overhead wiring. The car was renumbered 1447M in 1983, and after a graffiti attack around 1995 it was painted all-over yellow.