維修案例
在(zai)(zai)調整螺絲(si)的(de)(de)外端面(mian)做(zuo)一白色記號，以記錄其原(yuan)始位(wei)置(zhi)。②用(yong)(yong)(yong)13mm開口扳手把(ba)鎖緊(jin)螺母擰松。用(yong)(yong)(yong)4mm內六角(jiao)扳手轉動(dong)(dong)調整螺絲(si)，以調整電磁閥(fa)的(de)(de)設定壓(ya)(ya)(ya)(ya)力，順時針(zhen)調整時壓(ya)(ya)(ya)(ya)力增加。③調整后(hou)，重新(xin)擰緊(jin)螺母。④重新(xin)檢(jian)測(ce)(ce)電磁閥(fa)的(de)(de)設定壓(ya)(ya)(ya)(ya)力。液(ye)壓(ya)(ya)(ya)(ya)泵(beng)(beng)輸(shu)(shu)油(you)(you)(you)(you)壓(ya)(ya)(ya)(ya)力檢(jian)測(ce)(ce)可(ke)以用(yong)(yong)(yong)Dr.EX和壓(ya)(ya)(ya)(ya)力表(biao)進(jin)行檢(jian)測(ce)(ce)。1．檢(jian)測(ce)(ce)前的(de)(de)準備①使發動(dong)(dong)機平穩熄火。②按液(ye)壓(ya)(ya)(ya)(ya)油(you)(you)(you)(you)箱頂部(bu)的(de)(de)放(fang)氣閥(fa)，釋放(fang)剩余壓(ya)(ya)(ya)(ya)力③用(yong)(yong)(yong)6～內六角(jiao)扳手將主(zhu)泵(beng)(beng)輸(shu)(shu)油(you)(you)(you)(you)油(you)(you)(you)(you)口處(chu)的(de)(de)螺塞卸(xie)下(xia)。把(ba)管接頭、高壓(ya)(ya)(ya)(ya)軟管和壓(ya)(ya)(ya)(ya)力表(biao)（量程60MPa）安裝在(zai)(zai)油(you)(you)(you)(you)口上(shang)。④把(ba)Dr.EX連接到機器上(shang)，用(yong)(yong)(yong)以監測(ce)(ce)主(zhu)泵(beng)(beng)的(de)(de)輸(shu)(shu)油(you)(you)(you)(you)壓(ya)(ya)(ya)(ya)力。⑤啟(qi)動(dong)(dong)發動(dong)(dong)機，確認在(zai)(zai)壓(ya)(ya)(ya)(ya)力表(biao)的(de)(de)連接處(chu)沒(mei)有(you)漏油(you)(you)(you)(you)。⑥液(ye)壓(ya)(ya)(ya)(ya)油(you)(you)(you)(you)溫度為（50土5）℃。液(ye)壓(ya)(ya)(ya)(ya)泵(beng)(beng)輸(shu)(shu)出(chu)油(you)(you)(you)(you)壓(ya)(ya)(ya)(ya)力的(de)(de)檢(jian)測(ce)(ce)①選擇下(xia)列開關(guan)位(wei)置(zhi)：發動(dong)(dong)機控制表(biao)盤(pan)—大位(wei)置(zhi)；
E方(fang)式(shi)(shi)開關(guan)一(yi)(yi)(yi)一(yi)(yi)(yi)OFF;HP方(fang)式(shi)(shi)開關(guan)—OFF：工作(zuo)(zuo)方(fang)式(shi)(shi)選(xuan)擇(ze)開關(guan)—一(yi)(yi)(yi)般用(yong)途方(fang)式(shi)(shi)；自動(dong)(dong)慢車開關(guan)～一(yi)(yi)(yi)一(yi)(yi)(yi)OFF。②當操縱桿(gan)在空擋時測(ce)(ce)(ce)量(liang)壓(ya)(ya)力(li)(li)(li)(li)。③重復測(ce)(ce)(ce)量(liang)3次(ci)，并計算其平均值(zhi)。主溢流(liu)閥(fa)設(she)定(ding)壓(ya)(ya)力(li)(li)(li)(li)的檢(jian)(jian)測(ce)(ce)(ce)和調整可以(yi)用(yong)Dr.EX和壓(ya)(ya)力(li)(li)(li)(li)表進行(xing)檢(jian)(jian)測(ce)(ce)(ce)。1．檢(jian)(jian)測(ce)(ce)(ce)前的準備①將發動(dong)(dong)機(ji)(ji)平穩熄火。②按(an)動(dong)(dong)液壓(ya)(ya)油(you)(you)(you)(you)油(you)(you)(you)(you)箱頂部的放(fang)氣閥(fa)，釋(shi)放(fang)剩(sheng)余壓(ya)(ya)力(li)(li)(li)(li)。③用(yong)6mm內六角扳手在液壓(ya)(ya)泵輸(shu)油(you)(you)(you)(you)油(you)(you)(you)(you)口處將測(ce)(ce)(ce)壓(ya)(ya)螺塞(sai)卸下。把(ba)管接頭、高壓(ya)(ya)軟管和壓(ya)(ya)力(li)(li)(li)(li)表（量(liang)程60MPa）安裝在油(you)(you)(you)(you)口上(shang)。④把(ba)Dr.EX連接到機(ji)(ji)器(qi)上(shang)，以(yi)監(jian)測(ce)(ce)(ce)主泵的輸(shu)油(you)(you)(you)(you)壓(ya)(ya)力(li)(li)(li)(li)。⑤液壓(ya)(ya)油(you)(you)(you)(you)溫度為（5O士5）℃。主溢流(liu)閥(fa)設(she)定(ding)壓(ya)(ya)力(li)(li)(li)(li)的檢(jian)(jian)測(ce)(ce)(ce)①選(xuan)擇(ze)下列開關(guan)位(wei)置：發動(dong)(dong)機(ji)(ji)控制表盤—大(da)位(wei)置：E方(fang)式(shi)(shi)開關(guan)一(yi)(yi)(yi)一(yi)(yi)(yi)OFF;HP方(fang)式(shi)(shi)開關(guan)一(yi)(yi)(yi)一(yi)(yi)(yi)OFF；工作(zuo)(zuo)方(fang)式(shi)(shi)選(xuan)擇(ze)開關(guan)—一(yi)(yi)(yi)般用(yong)途方(fang)式(shi)(shi)。②使每個執行(xing)機(ji)(ji)構發生溢流(liu)，以(yi)測(ce)(ce)(ce)量(liang)主溢流(liu)閥(fa)的溢流(liu)壓(ya)(ya)力(li)(li)(li)(li)。慢慢操作(zuo)(zuo)鏟斗、斗桿(gan)、動(dong)(dong)臂的先導操縱桿(gan)到行(xing)程末(mo)端，使每個機(ji)(ji)構都(dou)發生1次(ci)溢流(liu)。③對于回轉功能，
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