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ＮＴ８５５－Ｇ３柴油机的燃油供给是通过电路板自动控制ＰＴ泵的两极式（怠速－高速）电子调速器进行调节的。由于控制电子调速器的电路板经常发生故障，多次更换新的电路板也不能确保其正常运转，最后还因发生“飞车”事故导致ＰＴ泵内零件损坏。为了减少同类故障的再次发生
The fuel supply to the NT855-G3 diesel engine is regulated by a bipolar (idling-high speed) electronic governor that automatically controls the PT pump on the circuit board. As the electronic governor circuit board often fails, many times to replace the new circuit board can not ensure its normal operation, and finally because of “flying” accident caused damage to the PT pump parts. In order to reduce the recurrence of similar failures