D400E Series II Articulated Truck Power Train Caterpillar


Solenoid Valve - Test

Usage:

D400E II 8PS

------ WARNING! ------

机器突然移动,会造成人员伤亡。

机器突然移动或释放气压或油压,可能对机器上或机器附近的人员造成伤害。

在测试和调整任何空气系统或液压系统之前,为防止可能的伤害,执行测试和调整, "概述"部分的程序。


这项检查确定是否存在下列情况:

  • 电信号到达电磁阀。

  • 电磁阀被通电启动。

步骤

  1. 从锁定离合器电磁阀上断开电气线束。 断开升档电磁阀和降档电磁阀。

  1. 变速箱控制装置必须在空档,变速箱旋转选档器滑阀必须在空档。

  1. 当变速箱在空档时,降档电磁阀保持启动。 这会向降档电磁阀的电气线束提供 +24 伏电压。

  1. 使用两个 Sure-Seal 2 针接头和两条 16 线规导线制作跨接线束。 这两根导线的长度应约为 4.5 m (15 ft)。 将跨接线束的一端连接到降档电磁阀的线束上。

  1. 接通发动机起动开关。 不要启动发动机。

  1. 将跨接线束连接到降档电磁阀与锁定离合器电磁阀之间。

  1. 从电气线束上拆下跨接线束。

  1. 将电气线束连接到降档电磁阀与升档电磁阀之间。

  1. 将电气线束连接到降档电磁阀与降档电磁阀之间。

  1. 任何时候当电气线束接触到电磁阀时,必须感觉到或者听到咔嗒声或者嗡嗡声。

问题

没有感觉到或者听到咔嗒声或者嗡嗡声。

可能的原因

  • 电磁阀损坏

  • 连接电磁阀的导线或线束断裂

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