G3500 Engines Caterpillar


Engine Air Filter Service Indicator - Inspect

Usage:

G3508 DLR
空气滤清器维修指示器可能装在空气滤清器滤芯上或在较远的地方。


图 1g00760342
维修指示灯

某些发动机可能装有不同的维修指示器。

观察维修指示器。 发生以下情况时,要清洁或更换空气滤清器滤芯:

  • 黄色膜片进入红色区域。

  • 红色柱塞锁定在可见位置。

  • 空气阻力达到 3.75 kPa (15 inch of H2O)


图 2g00760341
曲轴箱通风用空气滤清器上的保养指示器

某些发动机配备了曲轴箱通风用进气滤清器。 这种空气滤清器安装在凸轮轴盖上。 发生以下情况时,要清洁或更换空气滤清器滤芯:

  • 黄色膜片进入红色区域。

  • 红色柱塞锁定在可见位置。

  • 空气阻力达到 0.25 kPa (1 inch of H2O)

  • 该空气滤清器浸透了机油。

每天检查维修指示器是否有裂纹,孔洞或松动的接头。 如果出现任何此类情况,更换保养指示器。

测试保养指示器

维修指示器是重要的仪器。

  • 将保养指示器抽真空(抽吸)。

  • 使维修指示器复位。

如果黄色芯没有锁定在最大真空位置或如果保养指示器不容易复位,就应该更换新保养指示器。 如果新的维修指示器也不能复位,则维修指示器的接头可能已堵住。



图 3g00351792
多孔滤清器

多孔滤清器是用来安装保养指示器的接头的一部分。 检查滤清器是否清洁。 如有必要,清洁此滤清器。 使用压缩空气或清洁、不易燃的溶剂。

注: 安装保养指示器时,拧得过紧可能使保养指示器顶部开裂。 拧紧维修指示器至扭矩为 2 N·m (18 lb in)

不管运转情况如何,每年都要更换维修指示器。

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