What necessary activities should be performed by a bus driver while replacing a wheel?
Show the correct answer
Correct answer
A. Place the jack in a place indicated by the producer.
Explanation
In the photo, you can see a close-up of the front wheel of a bus and part of the bodywork. When changing a wheel, you place the jack at the point indicated by the manufacturer - answer A.
The Road Traffic Act requires a vehicle to be maintained so that using it does not endanger safety. The manufacturer indicates reinforced support points that will hold the raised part of a heavy bus - a jack placed somewhere else can dent the body panels, bend a suspension part or slip. Disconnecting the battery (answer B) is not necessary when changing a wheel. Tightening the wheels "with maximum force" without a torque wrench (answer C) can strip the thread or deform the wheel disc, and a wheel that is not tightened enough can come off - that is why you tighten the nuts to the torque given by the manufacturer, in a cross pattern, and check them again after driving a few dozen kilometres.
Legal basis: Art. 66 para. 1 point 1 of the Road Traffic Act (Prawo o ruchu drogowym)