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检查汽车空调压缩机电磁离合器

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Post time 2016-3-25 14:34:05 | Show the author posts only Reply Awards |Descending |Read mode
本帖最后由 占领五方礁 于 2016-3-30 14:18 编辑

接通空调A/C开关,压缩机应立即工作;断开空调A  开关,压缩机应立即停止工作。在短时间内断开、接合几次,可检查电磁离合器工作是否正常。如果不正常,应先检查空调电路是否有故障,然后再检查电磁离合器是否正常。
      天冷时,若压缩机不启动,可能是由于环境温度开关或低压开关起作用。可将电瓶正极与电磁离合器直接连接,若压缩机仍不转动,则说明电磁离合器有故障;在环境温度开关规定的气温(2~4℃)以下正常启动压缩机,若能启动,则说明环境温度开关损坏,应更换。
       可以直接用万用表测量电磁线圈的电阻,其电阻值应在正常范围。例如:丰田系列轿车和面包车,电磁离合器的线圈的电阻值为:



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