1、選擇(ze)合適的粘度

當油(you)(you)粘(zhan)度(du)太低(di)時(shi)(shi)，液(ye)壓(ya)(ya)(ya)泵及整個系統(tong)內，外(wai)泄漏(lou)增(zeng)(zeng)(zeng)大(da)，液(ye)壓(ya)(ya)(ya)泵效率下降，功率損失(shi)增(zeng)(zeng)(zeng)加，油(you)(you)溫上升(sheng)，液(ye)壓(ya)(ya)(ya)泵相互運動部分磨損加劇(ju)，液(ye)壓(ya)(ya)(ya)泵輸出(chu)壓(ya)(ya)(ya)力(li)(li)下降，工(gong)作(zuo)精(jing)度(du)降低(di)；若用油(you)(you)粘(zhan)度(du)過高時(shi)(shi)，液(ye)壓(ya)(ya)(ya)泵吸入阻力(li)(li)增(zeng)(zeng)(zeng)加，出(chu)現噪(zao)聲。液(ye)壓(ya)(ya)(ya)油(you)(you)通過系統(tong)管路和其(qi)他液(ye)壓(ya)(ya)(ya)元件時(shi)(shi)阻力(li)(li)增(zeng)(zeng)(zeng)加，使液(ye)壓(ya)(ya)(ya)泵和系統(tong)壓(ya)(ya)(ya)力(li)(li)損失(shi)增(zeng)(zeng)(zeng)大(da)，造成功率損失(shi)增(zeng)(zeng)(zeng)大(da)，溫度(du)上升(sheng)，動作(zuo)不平穩。

2、根據使(shi)用環境選(xuan)擇

在(zai)選(xuan)用(yong)液(ye)壓油(you)(you)的(de)品種(zhong)時，對于要求條件較高(gao)或(huo)專(zhuan)用(yong)液(ye)壓傳動設備(bei)，可(ke)選(xuan)用(yong)各種(zhong)專(zhuan)用(yong)液(ye)壓油(you)(you)，如抗磨(mo)液(ye)壓油(you)(you)，稠化(hua)液(ye)壓油(you)(you)，低溫(wen)液(ye)壓油(you)(you)等，這(zhe)些(xie)油(you)(you)已加(jia)入了各種(zhong)改善(shan)性能的(de)劑。普通液(ye)壓油(you)(you)的(de)凝點規定為-10℃，因此(ci)只(zhi)能適用(yong)于環(huan)境溫(wen)度在(zai)0℃以上的(de)地(di)區。

3、選用品(pin)質好的液(ye)壓油

選(xuan)(xuan)擇液壓(ya)油(you)(you)(you)一般(ban)應盡量選(xuan)(xuan)用較好的液壓(ya)油(you)(you)(you)，這樣做雖然一次發投(tou)資成(cheng)本(ben)要高(gao)些，但因優(you)質油(you)(you)(you)使用壽命長，對液壓(ya)泵及其元件(jian)損害小，從總的效益看，其經濟要比價(jia)廉的劣質油(you)(you)(you)為好。