What Should a tram driver do, if upon switching on drive the shoe brakes fail to disinhibit?
Show the correct answer
Correct answer
B. Undo the brake release
Explanation
The question is about a situation in which the shoe brakes do not release after drive is switched on. The tram driver should undo the brake release devices (luzowniki) - answer B.
Undoing the brake release devices means manually, mechanically releasing the shoe brakes that have not released on their own. If the brakes still hold the wheels after drive is switched on, driving with the brakes applied (answer A) would lead to overheating and destruction of the linings and the wheels, and even to a fire. Calling the traffic control centre (nadzór ruchu, answer C) is not the first step, because the tram driver can undo the brake release devices himself in line with the tram's operating instructions, without special tools. However, a tram with manually released brakes has limited braking efficiency, so the fault must be reported to the dispatcher and you must follow his instructions.
Legal basis: Art. 3 para. 1 of the Road Traffic Act (Prawo o ruchu drogowym)