C0.5, C0.7, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Caterpillar


Turbocharger - Inspect - If Equipped

Usage:

3011C 311
推荐对涡轮增压器定期进行目视检查。 任何来自曲轴箱的烟雾都会经过进气系统的过滤。 因此,从机油和燃烧中产生的副产品会堆积在涡轮增压器压缩机壳体内。 时间一长,这些堆积物会导致发动机功率的损失、黑烟增多和发动机整体效率的降低。

如果发动机运转时涡轮增压器出现故障,则可能会对涡轮增压器压缩机叶轮和/或发动机造成损坏。 涡轮增压器压缩机叶轮的损坏会进一步导致活塞、气门和气缸盖的损坏。


注意

注意:涡轮增压器轴承损坏会造成大量机油进入进气及排气系统。发动机润滑剂缺失会造成发动机的严重损坏。

涡轮增压器在低怠速下运转时间过长时会出现微小渗漏,只要涡轮增压器轴承不出现损坏,这种微小渗漏应不会成为问题。

当涡轮增压器轴承损坏,并伴有发动机明显的性能下降(排气冒烟或发动机无负载时转速升高)时,在修好或更换涡轮增压器之前,请不要继续运转发动机。


目视检查涡轮增压器可最大程度地减少计划外的停机时间。 目视检查增压器还可以降低对发动机的其他零件造成潜在损坏的可能性。

拆卸和安装

注: 所提供的涡轮增压器不可维修。

有关拆卸、安装、维修和更换的诸多选项,请咨询您的卡特彼勒代理商。 有关的程序和技术参数,请参考本发动机的 维修手册。

检查


注意

涡轮增压器的压缩机壳体不得从涡轮增压器上拆下进行清洁。

将执行器连杆连接到压缩机壳体。如果执行器连杆被移动或破坏,发动机可能无法满足排放标准。


  1. 卸下涡轮增压器的进气管和排气管。 目视检查管道上是否有机油。 清洁管道内部,以防止重新装配时有脏物进入。

  2. 检查是否有机油 。 如果压缩机叶轮的背面漏油,则有可能是涡轮增压器的机油密封圈失效。

    机油的出现可能是发动机长期低怠速运转的结果。 机油的出现还可能是进气管道的阻力(空气滤清器堵塞)的结果,会导致涡轮增压器渗油。

  3. 检查涡轮机出口壳体的孔径有无腐蚀。

  4. 将进气管和排气出口管紧固到涡轮增压器壳体上。

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