G3500 Engines Caterpillar


Engine Speed/Timing Sensor

Usage:

G3516 CPG
如果产生了针对发动机转速/正时传感器的诊断代码,请参阅电子故障诊断和排除, SENR6413, "G3500发动机"。

为了正确工作,必须纠正故障状况和传感器的安装。 如果对故障状况或传感器的安装有怀疑,使用下列程序:




    图 1g00760464

    (1) 发动机速度/定时传感器

  1. 拆下发动机转速/正时传感器 (1) 。 检验磁铁端头的状况。 查看是否有磨损和污染迹象。

  1. 从磁铁面上清除所有碎屑。



    图 2g00760465

    (2) 滑动头

  1. 检查滑动头 (2) 的紧度。 轻轻地将滑动头最少伸出4 mm (0.16 inch)。 然后将滑动头推回。

    当滑动头达到正确紧度时,从伸出位置将滑动头推回至少需要用22 N (5 lb)的力。


    注意

    安装转速/正时传感器时,其滑动头必须完全伸出,这样就使传感器能够与转速/正时轮保持接触。 如果没有保持接触,传感器将不会产生信号。

    决不能将传感器安装在转速/正时齿轮的轮齿之间。 否则,会损坏传感器。 在安装传感器前,确保在传感器的安装孔中可以看到轮齿。


  1. 安装发动机转速/正时传感器。

    1. 确保在传感器的安装孔中可以看到轮齿。

    1. 将滑动头 (2) 拔出,使之伸出最少达到 4 mm (0.16 inch)。

    1. 在传感器的螺纹上涂抹 4C-5597 防粘结剂 。

      注: 滑动头的设计是与转速-正时轮轮齿接触。 在滑动头和轮齿之间的最大容许间隙为0.5 mm (0.02 inch)。

    1. 安装传感器。 拧紧锁紧螺母到40 ± 5 N·m (30 ± 4 lb ft)。

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