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一、黃油胡亂塗抹
黃huang油you的de主zhu要yao作zuo用yong是shi潤run滑hua和he密mi封feng。所suo以yi，有you的de修xiu理li工gong在zai維wei修xiu的de過guo程cheng當dang中zhong，就jiu會hui在zai汽qi缸gang墊dian上shang塗tu抹mo黃huang油you，認ren為wei這zhe樣yang可ke以yi增zeng加jia柴chai油you發fa動dong機ji的de密mi封feng性xing能neng。可ke是shi，這zhe確que實shi大da錯cuo特te錯cuo的de。因yin為wei，如ru果guo在zai汽qi缸gang墊dian上shang塗tu抹mo黃huang油you，當dang汽qi缸gang螺luo栓shuan擰ning緊jin時shi，必bi然ran會hui有you一yi部bu分fen黃huang油you流liu入ru到dao氣qi缸gang當dang中zhong。剩sheng下xia的de在zai外wai部bu的de黃huang油you在zai受shou到dao高gao溫wen影ying響xiang之zhi後hou還hai會hui造zao成cheng缸gang墊dian、缸蓋與機體平麵之間發生一定的縫隙，這樣反倒是降低了缸墊原本的密封性。
二、從不換機油
jiyouzaigongchengjixiedangzhongdezuoyongyouweijuda，henduoxiuligongduicidouhenzhongshi。tamenwanquananzhaobiaozhunyaoqiujinxingtianjia。danshi，henduodexiuligongquewangjileduijiyouzhiliangjianzhahetuibianjiyoudegenghuan。changqidezhishitianjiaerbugenghuanjiyou，jiuhuishidefadongjidehenduobujianzairunhuajiaochadehuanjingxiagongzuo，suozaochengdemosunyuanchaozhengchangzhuangtai。erqie，chaiyoujizaiyunzhuandeguochengdangzhong，henduodewuwuyehuijinrudaojiyoudangzhong，ruguodingqibugenghuanjiyou，henrongyiyinfashaowa、抱軸等意外事故。
三、缸套和活塞產品不進行組合即安裝
henduoxiuligongzaiweixiudeshihou，renweixinpindouyinggaishiguifanjian。suoyi，zaimianduixindegangtaohehuosaichanpindeshihouwangwangshibukanjutichicun。zheyangjiuhuizaochenghenduoshihougangtaohehuosaichanpinbupeitaodeqingkuang，dangzuidachicundeqigangpeishangzuixiaochicundehuosai，jiuhuishierzhejianxiguoda，yasuowuli。
四、采用明火加溫活塞
zaianzhuanghuosaixiaodeguochengdangzhong，yinggaixianranghuosaishourepengzhang。henduodeweixiurenyuanweiletantufangbian，zhijiejiangqifangzaiminghuoshangjinxingjiare。danshi，yinweihuosaigebuweidebohoushibujunyunde，fangzaiminghuoshangjiarejiuhuizaochengqishourebujun，zuihourongyiyinfabianxing。suoyi，zhengquedejiarefangshi，shiyinggaijianghuosaifangrudaoreyoudangzhongjinxingjiare。
五、砂布打磨軸瓦
刮(gua)瓦(wa)是(shi)工(gong)程(cheng)機(ji)械(xie)維(wei)修(xiu)當(dang)中(zhong)技(ji)術(shu)含(han)量(liang)相(xiang)對(dui)較(jiao)高(gao)的(de)一(yi)項(xiang)工(gong)作(zuo)，很(hen)多(duo)的(de)修(xiu)理(li)工(gong)因(yin)為(wei)自(zi)身(shen)的(de)技(ji)術(shu)不(bu)過(guo)關(guan)，就(jiu)會(hui)在(zai)進(jin)行(xing)刮(gua)瓦(wa)的(de)過(guo)程(cheng)當(dang)中(zhong)直(zhi)接(jie)用(yong)砂(sha)布(bu)進(jin)行(xing)打(da)磨(mo)。但(dan)是(shi)，在(zai)采(cai)用(yong)砂(sha)布(bu)進(jin)行(xing)打(da)磨(mo)的(de)過(guo)程(cheng)當(dang)中(zhong)砂(sha)布(bu)上(shang)的(de)沙(sha)粒(li)極(ji)其(qi)容(rong)易(yi)嵌(qian)入(ru)到(dao)合(he)金(jin)當(dang)中(zhong)，加(jia)速(su)柴(chai)油(you)機(ji)軸(zhou)頸(jing)的(de)磨(mo)損(sun)。
六、螺栓拚命擰緊
在(zai)工(gong)程(cheng)機(ji)械(xie)維(wei)修(xiu)的(de)過(guo)程(cheng)當(dang)中(zhong)，其(qi)實(shi)並(bing)不(bu)是(shi)螺(luo)栓(shuan)擰(ning)的(de)越(yue)緊(jin)越(yue)安(an)全(quan)的(de)。這(zhe)主(zhu)要(yao)是(shi)因(yin)為(wei)很(hen)多(duo)部(bu)位(wei)針(zhen)對(dui)於(yu)螺(luo)栓(shuan)的(de)轉(zhuan)矩(ju)都(dou)是(shi)有(you)要(yao)求(qiu)的(de)。但(dan)是(shi)，很(hen)多(duo)的(de)修(xiu)理(li)工(gong)並(bing)不(bu)這(zhe)麼(me)認(ren)為(wei)，他(ta)們(men)會(hui)盡(jin)可(ke)能(neng)的(de)將(jiang)其(qi)擰(ning)到(dao)最(zui)緊(jin)，這(zhe)就(jiu)容(rong)易(yi)造(zao)成(cheng)螺(luo)栓(shuan)擰(ning)斷(duan)或(huo)者(zhe)是(shi)螺(luo)紋(wen)滑(hua)扣(kou)。
七、輪胎氣壓太高
再給輪胎進行充氣的過程當中，很多的修理工並不注意輪胎氣壓的問題。這就容易造成夏季工程車輛爆胎的狀況發生。
八、水箱開鍋加冷水
在發動機超負荷作業、散san熱re不bu好hao等deng情qing況kuang都dou會hui造zao成cheng水shui箱xiang開kai鍋guo的de狀zhuang況kuang。很hen多duo修xiu理li工gong的de第di一yi反fan應ying是shi加jia水shui。但dan是shi，如ru果guo這zhe個ge時shi候hou加jia冷leng水shui就jiu會hui造zao成cheng缸gang蓋gai和he缸gang體ti炸zha裂lie，所suo以yi這zhe個ge時shi候hou應ying該gai先xian停ting止zhi發fa動dong機ji，等deng其qi自zi然ran冷leng卻que之zhi後hou在zai進jin行xing加jia水shui。
九、氣缸間測量不準
celiangqigangjianxi，yinggaizaihuosaiqunbuchuizhiyuhuosaixiaokongdefangxiangceliang。danshi，henduodexiuligongzaiceliangdeshihou，jiuhuiyinweiyishibuzhuyizaiqitafangxiangjinxingceliang。danshi，yinweiqiqunbuduanmianweituoyuanxing，suoyi，qigangjianxibingbuxiangdeng。
