795F AC and 795F AC XQ Off-Highway Trucks Caterpillar


Inverter Cabinet - Check/Clean

Usage:

795F AC ERM

------ WARNING! ------

  1. 将自卸车斗固定在完全升起位置,并使机器作好保养准备。 请参阅操作和保养手册, "使机器作好保养准备"。


    图 1g01843977

  2. 利用真空或刷子清除滤网 (1) 上的全部碎屑。


    图 2g01834033

  3. 目视检查变频器柜有无任何以下情况:

    • 检修门或盖上的密封件松动

    • 固定件损坏

    • 紧固件松动或丢失

    • 机柜, 检修门 和 盖内的凹痕冲孔

  4. 如果存在任何异常情况,请联系您的 Caterpillar 代理商。

  5. 卸下卡车车斗固定缆绳并降下车斗。

变频器柜内部清洁

------ DANGER! ------

在机器工作中和发动机停机后的短时间内,动力传动系电驱动系统中将包含危险电压水平。

在发动机运行中,不要拆下将使通电的高电压电气部件露出的任何盖板。

以下部件任何形式的保养只能在动力传动系电气系统维修断电程序完成后进行:

  • 变频器柜内的高电压腔室

  • 包含电驱动牵引马达的后桥壳体

  • 发电机

  • 减速电阻器栅极、栅极鼓风机马达和栅极系统电缆

  • 励磁磁场调节器

  • 高电压电缆和连接外壳

不遵从这些说明会造成人身伤亡。


不要为变频器柜内部清洁而专门打开变频器柜。

当其他维修程序要求打开变频器柜时,利用真空或压缩空气清洁变频器柜内部。

注: 用于清洁的最大气压一定要低于 205 kPa (30 psi)

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