模式（A）驅動控制電機通過旋轉，制動系統電機不工作時。挖掘機維修最重要的三個參數：操作重量（質量），發動機功率和鏟斗斗容。維修挖掘機第一臺液壓挖掘機由法國波克蘭工廠發明成功。由于液壓技術的應用，20世紀40年代有了在拖拉機上配裝液壓反鏟地懸掛式挖掘機。挖掘機修理最(zui)初挖(wa)掘(jue)(jue)機(ji)(ji)(ji)(ji)是手(shou)動(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)(de)，從發(fa)(fa)(fa)明(ming)到(dao)(dao)現在已經有(you)(you)(you)一百三十(shi)多年了(le)，期(qi)間(jian)經歷了(le)由(you)蒸(zheng)汽驅動(dong)(dong)(dong)(dong)(dong)(dong)斗(dou)回轉(zhuan)挖(wa)掘(jue)(jue)機(ji)(ji)(ji)(ji)到(dao)(dao)電(dian)(dian)(dian)(dian)(dian)力驅動(dong)(dong)(dong)(dong)(dong)(dong)和內燃機(ji)(ji)(ji)(ji)驅動(dong)(dong)(dong)(dong)(dong)(dong)回轉(zhuan)挖(wa)掘(jue)(jue)機(ji)(ji)(ji)(ji)、應(ying)用(yong)機(ji)(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)液一體(ti)化(hua)技術(shu)的(de)(de)(de)(de)(de)(de)全(quan)自動(dong)(dong)(dong)(dong)(dong)(dong)液壓(ya)挖(wa)掘(jue)(jue)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)逐步發(fa)(fa)(fa)展過(guo)程。挖(wa)掘(jue)(jue)機(ji)(ji)(ji)(ji)設備維修(xiu)①將(jiang)(jiang)(jiang)筒管(guan)插入(ru)一個制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)以及電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)旋(xuan)轉(zhuan)中(zhong)心部(bu)(bu)位(wei)(wei)(wei)[I],向(xiang)A方(fang)(fang)向(xiang)不(bu)(bu)(bu)斷轉(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)約120°便(bian)可(ke)得到(dao)(dao)解(jie)(jie)除制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)。②按動(dong)(dong)(dong)(dong)(dong)(dong)力技術(shu)加速(su)實(shi)現開(kai)(kai)(kai)(kai)(kai)關或，進行選擇開(kai)(kai)(kai)(kai)(kai)關之(zhi)間(jian)切換。③將(jiang)(jiang)(jiang)筒套插入(ru)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)過(guo)程中(zhong)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)具有(you)(you)(you)旋(xuan)轉(zhuan)不(bu)(bu)(bu)同部(bu)(bu)位(wei)(wei)(wei)[I]向(xiang)B方(fang)(fang)向(xiang)發(fa)(fa)(fa)生轉(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)約120°，前(qian)(qian)(qian)窗(chuang)(chuang)都是處(chu)(chu)于(yu)一種(zhong)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)功能狀(zhuang)態(tai)。（2）模式(shi)(shi)（B）制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)企業工(gong)(gong)作(zuo)，驅動(dong)(dong)(dong)(dong)(dong)(dong)設計(ji)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)作(zuo)為(wei)不(bu)(bu)(bu)動(dong)(dong)(dong)(dong)(dong)(dong)，為(wei)此，前(qian)(qian)(qian)窗(chuang)(chuang)也不(bu)(bu)(bu)動(dong)(dong)(dong)(dong)(dong)(dong)。①按開(kai)(kai)(kai)(kai)(kai)關或，確(que)認基礎制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)公司已向(xiang)A方(fang)(fang)向(xiang)產(chan)(chan)生旋(xuan)轉(zhuan)。②將(jiang)(jiang)(jiang)標準管(guan)理(li)工(gong)(gong)具使(shi)用(yong)插入(ru)問題驅動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)構電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)旋(xuan)轉(zhuan)運動(dong)(dong)(dong)(dong)(dong)(dong)部(bu)(bu)位(wei)(wei)(wei)，轉(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)約40°，使(shi)之(zhi)開(kai)(kai)(kai)(kai)(kai)閉(bi)（拆下連(lian)接結(jie)構部(bu)(bu)件后轉(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)）。③將(jiang)(jiang)(jiang)筒管(guan)插入(ru)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)旋(xuan)轉(zhuan)作(zuo)用(yong)部(bu)(bu)位(wei)(wei)(wei)，向(xiang)B的(de)(de)(de)(de)(de)(de)方(fang)(fang)向(xiang)開(kai)(kai)(kai)(kai)(kai)始轉(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)約120°，使(shi)之(zhi)處(chu)(chu)于(yu)快速(su)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)安(an)全(quan)狀(zhuang)態(tai)。（3）模式(shi)(shi)（C）驅動(dong)(dong)(dong)(dong)(dong)(dong)兩個電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)及制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)發(fa)(fa)(fa)展都不(bu)(bu)(bu)重(zhong)要(yao)工(gong)(gong)作(zuo)。①按（A）（B）模式(shi)(shi)分析操(cao)作(zuo)。（4）手(shou)動(dong)(dong)(dong)(dong)(dong)(dong)方(fang)(fang)式(shi)(shi)切換時拆卸(xie)(xie)左右(you)兩邊的(de)(de)(de)(de)(de)(de)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)主要(yao)部(bu)(bu)位(wei)(wei)(wei)的(de)(de)(de)(de)(de)(de)有(you)(you)(you)頭(tou)螺釘①②，取(qu)下連(lian)接板③，電(dian)(dian)(dian)(dian)(dian)纜沒有(you)(you)(you)固定位(wei)(wei)(wei)置(zhi)不(bu)(bu)(bu)動(dong)(dong)(dong)(dong)(dong)(dong)，用(yong)手(shou)動(dong)(dong)(dong)(dong)(dong)(dong)解(jie)(jie)除前(qian)(qian)(qian)窗(chuang)(chuang)的(de)(de)(de)(de)(de)(de)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)，前(qian)(qian)(qian)窗(chuang)(chuang)便(bian)可(ke)明(ming)顯下降（關閉(bi)）。拆卸(xie)(xie)動(dong)(dong)(dong)(dong)(dong)(dong)力窗(chuang)(chuang)控制(zhi)(zhi)(zhi)器(qi)的(de)(de)(de)(de)(de)(de)連(lian)接各(ge)個部(bu)(bu)件（2 處(chu)(chu)）便(bian)可(ke)解(jie)(jie)除滑(hua)動(dong)(dong)(dong)(dong)(dong)(dong)片的(de)(de)(de)(de)(de)(de)互鎖10-6動(dong)(dong)(dong)(dong)(dong)(dong)力窗(chuang)(chuang)出現各(ge)種(zhong)故障時，前(qian)(qian)(qian)窗(chuang)(chuang)的(de)(de)(de)(de)(de)(de)開(kai)(kai)(kai)(kai)(kai)閉(bi)要(yao)領(ling) 11維修(xiu)人員(yuan)判(pan)定11-1現狀(zhuang)的(de)(de)(de)(de)(de)(de)維修(xiu)質量判(pan)定學(xue)(xue)生根據(ju)中(zhong)國機(ji)(ji)(ji)(ji)械(xie)工(gong)(gong)業控制(zhi)(zhi)(zhi)器(qi)的(de)(de)(de)(de)(de)(de)數據(ju)，可(ke)以將(jiang)(jiang)(jiang)當前(qian)(qian)(qian)的(de)(de)(de)(de)(de)(de)維修(xiu)信息判(pan)定教(jiao)學(xue)(xue)內容28項，顯示(shi)在多項顯示(shi)器(qi)上，但SK200-3的(de)(de)(de)(de)(de)(de)顯示(shi)我國只有(you)(you)(you)23項。顯示(shi)治療方(fang)(fang)法①按住蜂鳴停止運行開(kai)(kai)(kai)(kai)(kai)關，主開(kai)(kai)(kai)(kai)(kai)關回到(dao)(dao)ON。②按5次蜂鳴停止開(kai)(kai)(kai)(kai)(kai)關，顯示(shi)第1項目學(xue)(xue)習(xi)內容包括(kuo)機(ji)(ji)(ji)(ji)械(xie)電(dian)(dian)(dian)(dian)(dian)子(zi)控制(zhi)(zhi)(zhi)器(qi)產(chan)(chan)品編號。③打開(kai)(kai)(kai)(kai)(kai)智能開(kai)(kai)(kai)(kai)(kai)關面板下部(bu)(bu)的(de)(de)(de)(de)(de)(de)蓋子(zi)，連(lian)接網絡校(xiao)時的(de)(de)(de)(de)(de)(de)[時]修(xiu)改用(yong)戶開(kai)(kai)(kai)(kai)(kai)關，便(bian)按No.2，No.3……順序結(jie)果顯示(shi)。（開(kai)(kai)(kai)(kai)(kai)關標記為(wei)H）④連(lian)接校(xiao)時的(de)(de)(de)(de)(de)(de)[分]修(xiu)改開(kai)(kai)(kai)(kai)(kai)關，便(bian)按No.28，No.27……順序返回。（開(kai)(kai)(kai)(kai)(kai)關標記為(wei)M）挖(wa)掘(jue)(jue)機(ji)(ji)(ji)(ji)修(xiu)理(li)⑤不(bu)(bu)(bu)將(jiang)(jiang)(jiang)開(kai)(kai)(kai)(kai)(kai)關置(zhi)于(yu)OFF，顯示(shi)便(bian)不(bu)(bu)(bu)消失(shi)。

挖掘(jue)機(ji)(ji)給(gei)出(chu)(chu)防(fang)止行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)偏(pian)(pian)(pian)置(zhi)(zhi)(zhi)電(dian)磁(ci)閥(fa)(fa)(fa)的(de)(de)(de)指(zhi)(zhi)令，進(jin)行(xing)(xing)(xing)(xing)(xing)(xing)雙(shuang)(shuang)向行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)操(cao)作(zuo)時(shi)將(jiang)進(jin)行(xing)(xing)(xing)(xing)(xing)(xing)直(zhi)(zhi)線行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)的(de)(de)(de)閥(fa)(fa)(fa)門設置(zhi)(zhi)(zhi)在(zai)(zai)(zai)防(fang)止偏(pian)(pian)(pian)置(zhi)(zhi)(zhi)的(de)(de)(de)位置(zhi)(zhi)(zhi).. (只有在(zai)(zai)(zai)雙(shuang)(shuang)向行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)時(shi)，才能切換，防(fang)止行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)電(dian)磁(ci)閥(fa)(fa)(fa)偏(pian)(pian)(pian)離，與可變行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)開(kai)(kai)關(guan)位置(zhi)(zhi)(zhi)無關(guan)。 )（備注）SK200-3次，無此(ci)功能。 當(dang)獨立行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)（1）在(zai)(zai)(zai)可變開(kai)(kai)關(guan)MAX（1)上行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)時(shi)，行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)閥(fa)(fa)(fa)芯(xin)(306）通過(guo)先導(dao)壓力的(de)(de)(de)作(zuo)用(yong)移動。 2. P1泵(beng)(beng)直(zhi)(zhi)接通過(guo)行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)閥(fa)(fa)(fa)，通過(guo)旁路(lu)（51）到(dao)行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)電(dian)機(ji)(ji)。 3. 如圖所示的(de)(de)(de)P2泵(beng)(beng)，從前面的(de)(de)(de)直(zhi)(zhi)走(zou)(zou)閥(fa)(fa)(fa)到(dao)行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)電(dian)機(ji)(ji)。 （2）當(dang)變行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)開(kai)(kai)關(guan)的(de)(de)(de)MAX在(zai)(zai)(zai)變行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)線以外時(shi)，關(guan)閉油(you)壓泵(beng)(beng)的(de)(de)(de)流量。當(dang)開(kai)(kai)關(guan)放置(zhi)(zhi)(zhi)在(zai)(zai)(zai)MAX（1~6）之外時(shi)，控(kong)制器(qi)向P1泵(beng)(beng)和P2泵(beng)(beng)的(de)(de)(de)比例閥(fa)(fa)(fa)發(fa)出(chu)(chu)指(zhi)(zhi)令，以減少泵(beng)(beng)的(de)(de)(de)噴射(she)。 （3）防(fang)止行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)偏(pian)(pian)(pian)置(zhi)(zhi)(zhi)電(dian)磁(ci)閥(fa)(fa)(fa)1的(de)(de)(de)開(kai)(kai)關(guan)。 操(cao)作(zuo)雙(shuang)(shuang)向行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)時(shi)，控(kong)制器(qi)給(gei)出(chu)(chu)指(zhi)(zhi)令，防(fang)止行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)偏(pian)(pian)(pian)置(zhi)(zhi)(zhi)電(dian)磁(ci)閥(fa)(fa)(fa)切換.. 2.導(dao)頻壓力作(zuo)用(yong)于直(zhi)(zhi)線行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)，直(zhi)(zhi)線移動用(yong)于行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)閥(fa)(fa)(fa)芯(xin)（307）。 3.因此(ci)，P1泵(beng)(beng)和P2泵(beng)(beng)的(de)(de)(de)部分(fen)傳導(dao)，防(fang)止偏(pian)(pian)(pian)置(zhi)(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)。 和單向行(xing)(xing)(xing)(xing)(xing)(xing)走(zou)(zou)，不切換指(zhi)(zhi)令..