Before each season, which begins this year on June 20, the cars on the Furka Mountain Steam Railway (Dampfbahn Furka Bergstrecke) have to prove that their brakes are working perfectly. For this purpose, brake tests are carried out on each individual carriage and documented. Here it is the turn of the two-axle covered freight car X # 2933, which is pulled back by HG 4/4 # 704 to Realp DFB in the gorge of the Furkareuss.