G3600 Engines Caterpillar


Crankshaft Vibration Damper - Inspect

Usage:

G3606B 4ZS
曲轴减振器限制了曲轴的扭振。 粘滞减振器具有环形重块,重块置于充满液体的环形壳体内随曲轴一起转动。

曲轴减振器损坏或曲轴减振器出现故障会增加扭振。 这会损坏曲轴或其它发动机零部件。 老化的减振器会在转速范围内的不同的转速点引起齿轮系噪声过大。

减振器发热可能是由于过度扭振造成的。 运行期间,监测减振器的温度。

建议使用 8T-2821 温度指示器或 8T-2822 温度指示器监测减振器的温度。 在减振器的外径上,均匀分布四个这种粘着指示器。

注: 如果使用红外线温度计监测减振器的温度,要在相似的载荷和转速工况下使用该温度计。 保持数据的记录。 如果温度开始升高,缩短减振器的检验周期。 定期监测减振器的温度非常重要。 当温度发生变化时,记录减振器的温度是重要的。 这对减振器的维护提供依据。

如果减振器温度达到 110 °C (230 °F ),请与卡特彼勒代理商联系。

检查减振器是否有凹陷、裂纹或液体渗漏的迹象。

如果发现液体渗漏,确定液体类型。 减振器中的液体为硅酮。 硅酮具有下列特性: 透明, 胶粘, 光滑 和 粘性。 如果发现有液体渗漏,修理或更换减振器。

如果渗漏的液体是机油,检查曲轴油封是否渗漏。 如果观察到渗漏,更换密封。

可基于以下原因,检查减振器并修理或更换减振器。

  • 减振器有压痕、破裂或渗漏。

  • 减振器上的油漆因受热而变色。

  • 发动机曾发生因曲轴断裂而引起的故障。

  • 机油分析揭示曲轴前端轴承有严重磨损。

  • 齿轮传动系有并非因缺少机油而造成的的大量磨损。

拆卸与安装

有关更换减振器的信息资料,请参考维修手册, "拆卸和安装"或向您的卡特彼勒代理商咨询。

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