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廠家介紹,挖掘機(ji)(ji)(ji)如果出(chu)(chu)(chu)(chu)現(xian)(xian)(xian)冒(mao)(mao)(mao)黑煙的現(xian)(xian)(xian)象(xiang)(xiang),可能是(shi)(shi)燃(ran)(ran)(ran)(ran)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)在(zai)(zai)缸內燃(ran)(ran)(ran)(ran)燒(shao)不(bu)充分(fen)(fen)的外在(zai)(zai)表現(xian)(xian)(xian)。應從三個方面入(ru)手(shou)(shou)(shou):1、進(jin)(jin)氣(qi)不(bu)夠(gou)(gou):檢(jian)(jian)查(cha)進(jin)(jin)氣(qi)門間隙是(shi)(shi)否(fou)(fou)在(zai)(zai)合理范圍內,氣(qi)門間隙不(bu)對等會(hui)造成進(jin)(jin)氣(qi)壓(ya)(ya)(ya)(ya)力(li)和(he)量(liang)不(bu)夠(gou)(gou);空氣(qi)濾(lv)(lv)芯是(shi)(shi)否(fou)(fou)有(you)堵塞。增(zeng)壓(ya)(ya)(ya)(ya)器(qi)(qi)損(sun)壞(huai),造成進(jin)(jin)氣(qi)壓(ya)(ya)(ya)(ya)力(li)不(bu)足;2、柴(chai)(chai)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)質量(liang)不(bu)佳,柴(chai)(chai)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)泵(beng)(beng)(beng)和(he)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)嘴(zui)磨損(sun);3、噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)射器(qi)(qi)磨損(sun):噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)過多,導(dao)致燃(ran)(ran)(ran)(ran)燒(shao)不(bu)充分(fen)(fen)。需(xu)請服務(wu)人員進(jin)(jin)行發動(dong)機(ji)(ji)(ji)斷缸實(shi)驗,檢(jian)(jian)查(cha)是(shi)(shi)否(fou)(fou)是(shi)(shi)由(you)于(yu)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)嘴(zui)磨損(sun)所致。故障排(pai)查(cha)將回轉電磁(ci)閥(fa)插頭安(an)裝(zhuang)(zhuang)在(zai)(zai)合、分(fen)(fen)流電磁(ci)閥(fa)上,以(yi)將液(ye)(ye)壓(ya)(ya)(ya)(ya)系統(tong)主泵(beng)(beng)(beng)強制(zhi)(zhi)卸(xie)(xie)壓(ya)(ya)(ya)(ya)。再(zai)將柴(chai)(chai)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)機(ji)(ji)(ji)轉速調至(zhi)高怠速狀態,檢(jian)(jian)測(ce)出(chu)(chu)(chu)(chu)液(ye)(ye)壓(ya)(ya)(ya)(ya)系統(tong)卸(xie)(xie)荷壓(ya)(ya)(ya)(ya)力(li)正(zheng)常(3.9MPa),由(you)此(ci)說(shuo)(shuo)明操(cao)縱桿(gan)置于(yu)中位時(shi)(shi),柴(chai)(chai)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)機(ji)(ji)(ji)沒有(you)負荷,不(bu)會(hui)出(chu)(chu)(chu)(chu)現(xian)(xian)(xian)“憋(bie)車(che)(che)(che)(che)”現(xian)(xian)(xian)象(xiang)(xiang)。在(zai)(zai)燃(ran)(ran)(ran)(ran)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)細濾(lv)(lv)器(qi)(qi)輸(shu)出(chu)(chu)(chu)(chu)端安(an)裝(zhuang)(zhuang)1支(zhi)測(ce)壓(ya)(ya)(ya)(ya)范圍為0~0.6MPa壓(ya)(ya)(ya)(ya)力(li)表,用手(shou)(shou)(shou)動(dong)泵(beng)(beng)(beng)泵(beng)(beng)(beng)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)時(shi)(shi)測(ce)量(liang)泵(beng)(beng)(beng)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)壓(ya)(ya)(ya)(ya)力(li)正(zheng)常(0.22MPa),由(you)此(ci)說(shuo)(shuo)明燃(ran)(ran)(ran)(ran)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)細濾(lv)(lv)芯沒有(you)堵塞。在(zai)(zai)渦輪增(zeng)壓(ya)(ya)(ya)(ya)器(qi)(qi)出(chu)(chu)(chu)(chu)口端安(an)裝(zhuang)(zhuang)1支(zhi)0~0.6MPa壓(ya)(ya)(ya)(ya)力(li)表,在(zai)(zai)柴(chai)(chai)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)機(ji)(ji)(ji)高怠速時(shi)(shi)測(ce)量(liang)進(jin)(jin)氣(qi)增(zeng)壓(ya)(ya)(ya)(ya)壓(ya)(ya)(ya)(ya)力(li)正(zheng)常(0.03MPa)。操(cao)縱挖掘機(ji)(ji)(ji)使斗(dou)桿(gan)挖掘,并使液(ye)(ye)壓(ya)(ya)(ya)(ya)系統(tong)“憋(bie)壓(ya)(ya)(ya)(ya)”至(zhi)溢流狀態,進(jin)(jin)氣(qi)增(zeng)壓(ya)(ya)(ya)(ya)壓(ya)(ya)(ya)(ya)力(li)升高至(zhi)0.11MPa,燃(ran)(ran)(ran)(ran)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)細濾(lv)(lv)器(qi)(qi)輸(shu)出(chu)(chu)(chu)(chu)端壓(ya)(ya)(ya)(ya)力(li)降至(zhi)0.06~0.16MPa。由(you)此(ci)說(shuo)(shuo)明增(zeng)壓(ya)(ya)(ya)(ya)器(qi)(qi)工作正(zheng)常。拆卸(xie)(xie)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)泵(beng)(beng)(beng)高壓(ya)(ya)(ya)(ya)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)管,將油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)門控(kong)制(zhi)(zhi)桿(gan)置于(yu)高速位置,用手(shou)(shou)(shou)動(dong)泵(beng)(beng)(beng)快速泵(beng)(beng)(beng)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you),燃(ran)(ran)(ran)(ran)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)細濾(lv)(lv)器(qi)(qi)端壓(ya)(ya)(ya)(ya)力(li)表壓(ya)(ya)(ya)(ya)力(li)達(da)到(dao)0.225MPa時(shi)(shi),從噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)泵(beng)(beng)(beng)高壓(ya)(ya)(ya)(ya)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)(you)處出(chu)(chu)(chu)(chu)油(you)(you)(you)(you)(you)(you)(you)(you)(you)(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