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


Engine Has Early Wear

Usage:

CS-56B 437
注: 这不是电子系统的故障。

可能原因

  • 多次起动或冷态操作

  • 保养周期不正确

  • 发动机机油内的污垢

  • 不正确的机油

  • 污染的机油

  • 进气系统泄漏

  • 燃油内的污垢

  • 机油压力过低

建议的措施

多次起动或冷态操作

频繁起动和停止发动机会造成发动机过早磨损。 另外,经常在寒冷条件下短时间运转发动机也会造成发动机过早磨损。

保养周期不正确

发动机如果没有得到正确保养,就会过早磨损。

确保以正确的保养周期对发动机进行保养。 请参阅操作和保养手册 , "保养周期表" 。

发动机机油内的脏物

  1. 排空曲轴箱中的机油,然后向曲轴箱重新加注清洁的发动机机油。 安装新发动机机油滤清器。 请参阅操作和保养手册 以了解更多信息。

不正确的机油

  1. 检查发动机加注了规格正确的机油。 请参阅操作和维护手册 , "加注容量和建议 "。

  2. 如有必要,将发动机油系统排空,并重新加注发动机机油。 请参阅操作和保养手册 , "发动机机油和滤清器 - 更换"。

污染的机油

检查机油样本是否被燃油污染。 如果发现污染,应调查原因。

进气系统漏气

进气系统漏气可能导致未经过滤的空气进入发动机。 检查进气系统是否存在条痕,条痕表示进入了未经滤的空气。 检查所有垫片和连接。 修理所有泄漏的地方。 有关更多信息,请参阅 系统运行、测试与调整 , "进气系统" 。

燃油内的污垢

  1. 卸下燃油滤清器。 检查燃油滤清器是否有杂质。 安装新燃油滤清器。 请参阅操作和维护手册 , "燃油系统滤清器 - 更换"和 操作和维护手册 , "燃油系统粗滤器(油水分离器)滤芯- 更换"。 确定产生杂质的原因。

  2. 检查柴油是否受污染。 请参阅系统操作、测试与调整 , "燃油质量 - 测试 "。

机油压力低

有关测试程序,请参阅 故障排除, "发动机机油压力低"。 修理所有发现的故障。

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