In circa 1994, pantographs on the suburban trains were upgraded with carbon skid plates rather than steel, removing the need to apply grease to the overhead power lines as the carbon reduced wear on the overhead lines. 1447M and the two D vans were removed from overhead greasing service and the two Harris motors ran back-to-back as solely rail greasers. The two Harris motors were subsequently fitted with the upgraded pantographs and ran in rail greaser service until suffering a major breakdown in 2003. In later years the Greaser train was withdrawn, and now small automatic greasing pots are attached to the rails at tight curves. Overhead and rail inspection is now done using car MTH102 (coincidentally a former Harris car) hauled by two T class diesel locomotives.