C6.6 Engines for Caterpillar Built Machines Caterpillar


Fuel Quality - Test

Usage:

CS-56B 437
注: 有关在所有燃油系统工作期间必须遵循的清洁度标准的详细信息,请参阅系统运作, "燃油系统部件清洁度"。

确保所有的调整和修理由经过适当培训的授权人员来执行。

采用以下步骤以测试燃油质量是否有问题:

  1. 确定燃油中是否有水和/或杂质。 检查油水分离器(如有配备)。 如果没有油水分离器,继续进行步骤 2。 如有必要,放掉油水分离器中的水。 加满燃油箱可最大程度减少过夜水汽凝结的可能。

    注: 油水分离器内可能看起来全都是油,可实际上全都是水。

  2. 确定燃油内是否存在杂质。 从燃油箱底部取得油样。 目视检查油样中是否存在杂质。 燃油的颜色不一定表征燃油质量。 但是,黑色、褐色和/或类似油泥的燃油可能表明细菌繁殖或机油污染。 在低温条件下,浑浊的燃油表明该燃油可能不适合特定的使用条件。

    有关更多信息,请参阅操作和保养手册, "燃油建议"。

  3. 如果仍然怀疑燃油质量是发动机性能问题的可能起因,请断开进油管,暂时使用一个不同的已知质量良好的燃油来源运转发动机。 这将确定问题是否出在燃油质量上。 如果确定燃油质量有问题,排净燃油系统,更换燃油滤清器。 发动机性能会受以下特性的影响:

    • 燃油的甲烷值

    • 燃油中的空气

    • 其它燃油特性

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