The armored howitzers M 109 of the Swiss Army are transported on the Slmmnps-y cars of the 473 series, but when they have to reach the Bière military training area, they have to use the 1 meter gauge line of the MBC (Transports de la région Morges–Bière–Cossonay, former Bière-Apples-Morges BAM) from Morges. Then, the standard gauge Slmmnps-y are loaded onto low transporter trucks, which is done on this device, where the car is standing now.
