EMU car lifting and bogie roll-out unit

The unit is designed for replacing and repairing bogies of multiple unit rolling stock over the pit of a repair track. The car is uncoupled from its section and positioned at the station, the columns are brought to the standard lifting points of the body, the body is raised, and the released bogie is rolled out along the track rails by the pulling device to the repair area or the crane zone. Bogie replacement is thus carried out over the standard pit without moving the car to another track or involving the overhead crane.

Four electromechanical columns are arranged in pairs on both sides of the track on carriages that travel along guide rails laid beside the pit. The operator aligns the carriages with the lifting points of the given series using marks, locks them and starts the lift. The controller compares the readings of the position sensors on all columns and keeps the body level; if the permissible tilt is exceeded, lifting stops. A self-locking screw drive rules out unintended lowering, and mechanical stands hold the body for the duration of the work.

The basic scope of supply includes four columns with carriages, guide rails for the length of the station, a control cabinet with a synchronization panel, a portable pendant and a pulling device for bogie roll-out with a rope or chain hitch to the bogie frame. At the customer's request the unit is extended to eight columns for lifting a two-car section at once, and supplemented with load weighing on each column, electric drive for carriage travel along the track and sets of lifting pads for several train series.