挖机水箱高温是什么问题啊

2025-03-25 14:28:54
推荐回答(1个)
回答(1):

挖掘机水温高又叫“挖机”“挖机水温高”是指挖机在作业中当水温超过95度(或超过红线),机子会提示报警现象.
故障分类:
1、挖掘机水温高开锅
2、水温油温高
挖掘机水温高原因:
①、作业环境温度太高或挖机靠近热源,可能会引起现象.挖机夏季作业很容易出现现象,因为夏季作业环境温度很高,因此在夏季作业时一定要避免长时间作业,发动机超负荷作业和太热的情况下尽量少作业.
②、 挖机散热器散热片被灰尘阻塞,散热效果差,不能及时排出多余的热量,导致水温高现象.排出故障需要经常检查散热片,清洗散热片.
③、 节温器损坏或节温器打开幅度过小,也会引起水温高现象.一般夏季作业可以将节温器拆掉作业,冬季时再将节温器装上.
④、 挖机水泵水循环不好,或水泵损坏,造成.
⑤、 水箱有气泡,水循环不好,缸垫子冲床引起,更换汽缸垫即可排除故障.
⑥、 挖机水箱太脏,有太多水垢,水循环不好造成.
⑦、 挖机风扇皮带太松影响循环,导致.
⑧、 冷却液不够或冷却系统出问题,也会造成水温高故障(夏季防冻液配比的浓度可能过大).
⑨、 发动机盖子坏了,也会造成故障.
⑩、 另外,如果挖机油温偏高,作业时间过长也会引起水温高现象.
更多、 二手挖机或使用时间太长挖机,由于发动机四配套不同程度磨损,也会导致现象发生.
解决办法:
1、"降负荷,低转速",减少吸热.将油门放到一档怠速运转使负荷减少、转速降低,各运动机件摩擦产生的热量将相应减少发动机产生的热量,间接地减少冷却液吸收的热量,从而降低水温升高的速度.
2、增大水箱进风量,加速散热.打开挖掘机两侧的偏门,使散热器进去的风量变大,机舱温度可迅速散出,从而降低水温升高的速度.
3、温度降下后,检查水箱的防冻液有无缺少,并添加防冻液.如身边没有备用防冻液,可以添加"人用的纯净水或蒸馏水"切勿添加河水或地下水.
4、温度降下后,清洗散热器.待温度降下来后,检查散热器、冷凝器与水箱之间的灰尘是否过多,用高压气彻底清洗,保证水箱和冷凝器有良好的散热性能.平时也应注意擦拭冷凝器与水箱之间的灰尘.实际上,80%的挖掘机高温都是散热不良造成的.因此,彻底清洗散热器表面的杂物和内部水垢、油垢,是解决挖掘机高温的绝招.

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