Abs Pump (Power Unit)

The power unit consists of an electric motor and a plunger pump. An eccentric bearing positioned at end of pump motor shaft rotates and provides the reciprocating motion of the plunger pump. This pressurizes brake fluid fed to the accumulator.

As the motor rotates and pressure in the accumulator exceeds a predetermined level, the pressure switch is turned on. Upon receiving this switching signal, the control unit stops motor relay operation. If accumulation pressure does not reach predetermined level after motor has run continuously for at least 2 minutes, the control unit stops motor operation and lights ANTI-LOCK warning light.