This causes the brake clips to be applied on individual wagons, assisted by a servo system which makes use of the rotation of the axle.
On several narrow gauge railways in Saxony, numerous vehicles with Heberlein systems can still be seen.
These include the Lößnitzgrundbahn, Weißeritztalbahn and Rittersgrün narrow gauge museum railway.
On the Preßnitztalbahn trains using Heberlein brakes run regularly, several times a year.
[3] Early versions were non-automatic and would not stop the train if a coupling broke, thus not fulfilling their promise of eliminating the need for a brake van and guard.