Nagoya Shinbun (currently Chunichi Shimbun) reported the test run with the heading "One Hundred kilometers per hour, faster than the Tsubame".

[9] The sets were used for limited express and rapid services in the eastern rail networks formerly owned by Aichi Electric Railways.

[10] During the Pacific War, the types of seats were changed to help carry more passengers, and broken windows were separated when it was repaired.

[11] Although the entire fleet was not damaged from the war, set 3403 was burned by a fire caused by short circuit and took over a year to be repaired due to lack of resources.

[12] The train was initially commissioned in a two-car formation, but in 1948, after the end of the Pacific War, the unification of overhead voltages on the eastern and western lines was completed,[13] and direct east-west operation began.

[14] Along with this event, the operation of premium trains in the Nagoya Main line was changed to be based on a four-car formation.

[15] Limited express services using the sets on the main lines were abolished and replaced by Meitetsu 7000 series, which was nicknamed panorama car in 1961.