C4.4 Industrial Engine Caterpillar


High Pressure Fuel Lines

Usage:

C4.4 444

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

接触高压燃油可能导致液体渗透和烧伤危险。 高压燃油溢出可能会产生火灾。 如果不遵循检查、保养和维修指南,可能会造成人身伤亡。




图 1g01425090
(1) 高压管路
(2) 高压管路
(3) 高压管路
(4) 高压管路
(5) 高压燃油歧管 (油轨)
(6) 高压管路

高压燃油管是指高压燃油泵与高压燃油歧管之间以及燃油歧管与缸盖之间的燃油管路。 这些燃油管路与其它燃油系统的燃油管路不同。

这是由于下述差异情况造成的:

  • 高压燃油管持续充有高压。

  • 高压燃油管的内部压力比其它类型的燃油系统要高。

  • 高压燃油管首先经过加工成型,然后按照特殊工艺进行加固。

不要踩踏高压燃油管。 不要偏转高压燃油管。 不要弯曲或敲击高压燃油管。 高压燃油管的变形或损坏可能导致形成薄弱点和潜在故障。

不要在发动机或起动马达运行时检查高压燃油管。 发动机停止后,在对发动机的燃油管路进行任何维修或修理前,必须等待60 秒钟以便排除高压燃油管路中的燃油压力。

不要松开高压燃油管来排出燃油系统的空气。 该步骤并不是必需的。

在发动机起动前,目测检查高压燃油管。 应每天都进行该项检查。

如果您检查正在运行的发动机,请始终使用正确的检查步骤以避免液体穿透危险。 请参阅操作和保养手册, "一般危险信息"。

  • 检查高压油管有无下列情况: 损坏、变形、刻痕、切割、折痕或凹痕

  • 不要在燃油泄漏的情况下运转发动机。 如果发生泄漏,不要拧紧管接头来阻止泄漏。 接头必须仅拧紧至推荐扭矩。 请参考解体与组装手册, "燃油喷油管 - 拆卸和安装"。

  • 如果高压燃油管已拧紧至正确扭矩,但却发生泄漏,则必须更换高压燃油管。

  • 确保所有高压燃油管上的卡子都安装到位。 不要在卡子损坏、遗失或松动的情况下运转发动机。

  • 不要将任何物品系在高压燃油管。

  • 松动的高压燃油管路必须更换。 拆下的高压燃油管也必须更换。 请参考解体与组装手册, "燃油喷油管 - 安装"。

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