Correct answer
Remove air that may be present in the circuit.
It allows air that has entered the hydraulic circuit to be removed. Compressible air bubbles impair pressure transmission and braking effectiveness. It is neither a maximum-pressure regulator nor the reservoir filling point. This differs from draining condensation from the air reservoirs of a pneumatic system. Bleeding must follow the manufacturer’s procedure; there is no universal interval or guarantee that bleeding alone resolves every fault.
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Regulate the maximum circuit pressure.
Fill the brake-fluid reservoir through the bleeder.
Remove air that may be present in the circuit.
The real exam in English is a translation of the Spanish original; compare both here.
Show the Spanish original
¿Para qué sirve el purgador de un circuito hidráulico de frenos?
- Regular la presión máxima del circuito.
- Eliminar el aire que pueda haber en el circuito.(Correct answer)
- Rellenar el depósito de líquido de frenos a través del purgador.
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