C4.4 and C6.6 Engines for Caterpillar Built Machines Caterpillar


Engine Oil in Cooling System

Usage:

CS-56B 437
注: 这不是电子系统的故障。

可能原因

  • 发动机机油冷却器

  • 缸盖衬垫

  • 缸盖

  • 缸体

建议的措施

发动机机油冷却器

  1. 排空冷却系统中的冷却液。 排空发动机机油冷却器中的润滑油。 请参阅操作和保养手册 以了解更多信息。

  2. 检查机油冷却器组件是否泄漏。 有关正确的程序,请参阅 系统操作、测试与调整 , "冷却系统" 。 如果发现泄漏,则应安装新机油冷却器。 有关正确的程序,请参阅 拆解与组装, "发动机机油冷却器 - 拆除"与 拆解与组装, "发动机机油冷却器 - 安装"。

缸盖衬垫

  1. 拆卸缸盖。 有关的正确程序,请参阅 拆解与组装, "缸盖 - 拆卸" 。

  2. 检查缸盖衬垫有无损坏和任何泄漏迹象。

  3. 若要安装新的缸盖衬垫,有关正确程序请参阅 拆解与组装, "缸盖 - 安装" 。

  4. 如果缸盖衬垫没有明显的磨损痕迹,请继续进行推荐的缸盖操作。

缸盖

  1. 测量缸盖的平面度。 有关正确的程序,请参阅 系统操作、测试与调整 , "缸盖 - 检查" 。

  2. 检查缸盖接合面有无磨损和泄漏迹象。 如果发现有磨损,则更换缸盖。 如果发现泄漏迹象,确定泄漏原因。 有关正确的程序,请参阅 系统操作、测试与调整 , "缸盖 - 检查" 。

  3. 如果气缸盖平坦,而且并没有任何故障,请参阅 "缸体"。

缸体

检查缸体上表面有无磨损和泄漏迹象。 如果发现有磨损,则更换缸体。 如果发现泄漏迹象,确定泄漏原因。 有关正确的程序,请参阅 系统操作、测试与调整 , "缸体 - 检查" 。

修复后的组装

  1. 安装缸盖。 请参阅 拆解和组装, "缸盖- 安装" 。

  2. 向发动机加注清洁的发动机机油到正确的油位。 更多有关信息资料,请参考 操作和维护手册 , "发动机机油和滤清器 - 更换" 。

  3. 加注冷却系统。 请参阅操作和维护手册 , "冷却系统冷却液(ELC) - 更换"。

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