磨粒、杂(za)质(zhi)和灰尘等通过(guo)滤油(you)器时,会被吸附在滤油(you)器的滤芯(xin)上,造(zao)成(cheng)吸油(you)阻力(li)和能耗均增加,引起(qi)油(you)温(wen)升高。
预防措施:定期(qi)清(qing)洗(xi)、更(geng)换(huan)滤(lv)(lv)油(you)(you)器(qi)(qi),对有(you)堵塞指示器(qi)(qi)的(de)滤(lv)(lv)油(you)(you)器(qi)(qi),应按指示情况(kuang)清(qing)洗(xi)或(huo)更(geng)换(huan)滤(lv)(lv)芯;滤(lv)(lv)芯的(de)性(xing)能、结(jie)构和(he)有(you)效期(qi)都(dou)必(bi)须符合其(qi)使(shi)(shi)用要求。如,一(yi)台CPCD30型叉(cha)车(che)(che)在作业时(shi)发现(xian)变(bian)矩器(qi)(qi)处(chu)有(you)油(you)(you)烟和(he)油(you)(you)液(ye)的(de)烧焦味,转向(xiang)油(you)(you)箱内油(you)(you)位(wei)较低;检查结(jie)果是(shi),变(bian)矩器(qi)(qi)回(hui)油(you)(you)泵吸油(you)(you)滤(lv)(lv)网(wang)堵塞引(yin)起了此故(gu)障,因(yin)滤(lv)(lv)网(wang)粘满(man)沉积(ji)物(wu)(wu),使(shi)(shi)变(bian)矩器(qi)(qi)泄漏的(de)油(you)(you)液(ye)不(bu)能及(ji)时(shi)泵回(hui)转向(xiang)油(you)(you)箱,越(yue)积(ji)越(yue)多(duo),变(bian)矩器(qi)(qi)放置(zhi)阻力加(jia)大(da),由摩擦产生的(de)热量增多(duo),最后导致油(you)(you)液(ye)温升太快;清(qing)洗(xi)该滤(lv)(lv)网(wang)后,油(you)(you)温恢复正常。又如,一(yi)台CPCD60型叉(cha)车(che)(che)液(ye)力传动(dong)系(xi)统发出高温警报,传动(dong)部位(wei)有(you)异响(xiang);拆(chai)开滤(lv)(lv)油(you)(you)器(qi)(qi)检查滤(lv)(lv)芯,发现(xian)其(qi)中含有(you)大(da)量粉末状污物(wu)(wu);更(geng)换(huan)滤(lv)(lv)芯后,故(gu)障消失。