345C MHPU Mobile Hydraulic Power Unit Engine Supplement Caterpillar


Refrigerant Receiver-Dryer - Remove and Install

Usage:

345C L B6N

拆卸步骤

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

接触制冷剂会使人受伤。

接触制冷剂会造成冻伤。 让手、脸避开,有助于防止受伤。

制冷管路被打开时,即使压力计显示系统中已经没有制冷剂,也要始终戴着护目镜。

拆卸管件时,务必小心谨慎。 慢慢地拧松接头。 如果系统内仍有压力,就要把它缓慢地释放到一个通风良好的地方去。

通过燃着的香烟吸入制冷剂会使人受伤或死亡。

通过燃着的香烟或其他抽烟方法吸入空调制冷气体,或者,吸入空调制冷气体接触明火而形成的烟雾,都会造成对人体的伤害 或死亡。

维修空调时,或者,在任何可能存在制冷气体的地方都不要抽烟。

采用经过认可的回收和循环利用车妥善地从空调器中取出制冷剂。


  1. 回收空调系统中的空调制冷剂。 有关步骤请参阅维修手册, SENR5664, "使用 R-134a 制冷剂的空调和暖风系统"。 有关工具信息,请参阅专门出版物, NEDG5065, "空调工具"。



    图 1g01184490

  1. 拆下软管组件 (1) 和 (2) 。 松开螺栓 (3) 。

  1. 拆下制冷剂干燥和储液罐 (4) 。

安装步骤




    图 2g01184490

  1. 定位制冷剂干燥和储液罐 (4) 。

  1. 拧紧螺栓 (3) 。 拧紧螺栓至扭矩为20 ± 5 N·m (15 ± 4 lb ft)。

  1. 安装软管组件 (1) 和 (2) 。 拧紧软管组件 (1) 和 (2) 至扭矩为 5 ± 1.5 N·m (4 ± 1 lb ft)。

  1. 加注空调系统。 有关步骤请参阅维修手册, SENR5664, "使用 R-134a 制冷剂的空调和暖风系统"。 有关工具信息,请参阅专门出版物, NEDG5065, "空调工具"。

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