At what point is it necessary to replace the wiper blades of a bus?

Question

DentroTest · Accepted Answer

To ensure adequate visibility and safety while driving a bus, the wiper blades must be changed immediately if the rubber is hardened, cracked or worn, or if when sweeping they make noises, skip or leave areas unwiped. No fixed interval decides the replacement (such as every 6 months): the definitive indicator is the obvious deterioration of the rubber. Waiting for the holder to break would seriously endanger safety and would damage the windshield glass.

At what point is it necessary to replace the wiper blades of a bus?

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