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下載手機APP在(zai)通(tong)用(yong)橋(qiao)式(shi)起(qi)重(zhong)機(ji)吊(diao)車(che)維(wei)修(xiu)的(de)操(cao)作(zuo)和(he)使(shi)用(yong)中(zhong)，常(chang)會(hui)出(chu)現(xian)一(yi)些(xie)簡(jian)單(dan)的(de)不(bu)是(shi)故(gu)障(zhang)又(you)不(bu)能(neng)進(jin)行(xing)操(cao)作(zuo)的(de)現(xian)象(xiang)。這(zhe)對(dui)於(yu)新(xin)上(shang)崗(gang)的(de)操(cao)作(zuo)人(ren)員(yuan)，或(huo)沒(mei)有(you)維(wei)修(xiu)人(ren)員的單位，需要了解並掌握一些識別技能，以免等待維修而影響生產。
(1)某單位一台10 tshuangliangqiaoshiqizhongji，qidianyuanzhishidengliang，caozongliandongtaizhishidengliang，danquebunengqidong。jingweixiurenyuandaoxianchangjianzha，faxiancongsijishidaozoutaideanquanmenmeiyouguanshang。diaocheweixiudangweixiurenyuanjianganquanmenguanhaohou，qizhongjideyiqiecaozuozhengchang，zhejiushiyizhongjiaguzhang。zaiqizhongjideanquanbaohuzhong，duicangkoumen、司si機ji室shi門men和he檢jian修xiu門men上shang均jun有you一yi個ge門men開kai關guan，當dang起qi重zhong機ji司si機ji或huo維wei修xiu人ren員yuan到dao起qi重zhong機ji上shang進jin行xing檢jian修xiu時shi，必bi須xu打da開kai艙cang口kou門men到dao起qi重zhong機ji走zou台tai上shang，或huo打da開kai檢jian修xiu門men到dao起qi重zhong機ji軌gui道dao梁liang上shang，這zhe時shi打da開kai的de門men上shang電dian器qi開kai關guan的de常chang閉bi觸chu點dian斷duan開kai，電dian氣qi箱xiang的de主zhu接jie觸chu器qi釋shi放fang，進jin而er切qie斷duan起qi重zhong機ji電dian源yuan，使shi起qi重zhong機ji無wu法fa起qi動dong。吊diao車che修xiu理li同tong時shi這zhe種zhong保bao護hu使shi檢jian修xiu人ren員yuan免mian受shou橋qiao架jia上shang小xiao車che滑hua線xian帶dai電dian的de威wei脅xie，也ye可ke防fang止zhi他ta人ren起qi動dong開kai車che傷shang及ji檢jian修xiu人ren員yuan。可ke見jian安an全quan門men開kai關guan的de保bao護hu作zuo用yong非fei常chang必bi要yao。
(2)一台10 t雙shuang梁liang橋qiao式shi起qi重zhong機ji的de供gong電dian正zheng常chang，各ge安an全quan門men關guan閉bi完wan好hao，但dan無wu法fa起qi動dong。經jing維wei修xiu人ren員yuan現xian場chang檢jian查zha，發fa現xian起qi升sheng控kong製zhi凸tu輪lun沒mei有you很hen好hao地di回hui零ling，即ji凸tu輪lun的de零ling點dian標biao誌zhi雖sui在zai零ling的de位wei置zhi上shang，但dan零ling位wei保bao護hu觸chu點dian沒mei有you接jie觸chu上shang。因yin為wei這zhe是shi一yi台tai使shi用yong多duo年nian的de起qi重zhong機ji，其qi觸chu點dian彈dan力li減jian弱ruo，產chan生sheng有you時shi接jie觸chu不bu上shang的de假jia故gu障zhang。將jiang觸chu點dian更geng換huan為wei新xin的de，不bu起qi動dong問wen題ti得de到dao解jie決jue。從cong凸tu輪lun控kong製zhi器qi的de結jie構gou可ke知zhi，隻zhi有you在zai各ge控kong製zhi器qi手shou柄bing置zhi於yu零ling位wei時shi，起qi升sheng、小車和大車控製器的零位觸頭才閉合。而在其它任何工作位置(即非零位置)時，都處於斷開位置。吊車修理因此，當任何一控製器手柄不在零位(或零位觸點沒有閉合)時shi，起qi重zhong機ji主zhu回hui路lu就jiu不bu能neng接jie通tong，起qi重zhong機ji也ye無wu法fa起qi動dong。這zhe就jiu防fang止zhi了le由you於yu某mou種zhong原yuan因yin手shou柄bing未wei回hui零ling位wei，而er在zai置zhi於yu工gong作zuo位wei置zhi情qing況kuang下xia重zhong新xin起qi動dong時shi，發fa生sheng機ji構gou突tu然ran動dong作zuo的de危wei險xian事shi故gu。吊diao車che維wei修xiu這zhe就jiu是shi起qi重zhong機ji的de零ling位wei保bao護hu作zuo用yong。
(3)一台10 t雙梁橋式起重機，其電源、安(an)全(quan)門(men)及(ji)操(cao)縱(zong)手(shou)柄(bing)位(wei)置(zhi)都(dou)正(zheng)常(chang)，但(dan)按(an)起(qi)動(dong)電(dian)鈕(niu)不(bu)能(neng)起(qi)動(dong)。維(wei)修(xiu)人(ren)員(yuan)到(dao)現(xian)場(chang)檢(jian)查(zha)，強(qiang)行(xing)對(dui)主(zhu)接(jie)觸(chu)器(qi)起(qi)動(dong)，運(yun)行(xing)正(zheng)常(chang)。但(dan)在(zai)按(an)停(ting)止(zhi)按(an)鈕(niu)時(shi)接(jie)觸(chu)器(qi)不(bu)能(neng)斷(duan)開(kai)，而(er)按(an)起(qi)動(dong)按(an)鈕(niu)時(shi)接(jie)觸(chu)器(qi)卻(que)斷(duan)開(kai)了(le)。吊(diao)車(che)修(xiu)理(li)再(zai)按(an)停(ting)止(zhi)按(an)鈕(niu)，主(zhu)接(jie)觸(chu)器(qi)起(qi)動(dong)正(zheng)常(chang)，說(shuo)明(ming)起(qi)動(dong)按(an)鈕(niu)和(he)停(ting)止(zhi)按(an)鈕(niu)接(jie)反(fan)了(le)。這(zhe)就(jiu)是(shi)維(wei)修(xiu)人(ren)員(yuan)沒(mei)有(you)交(jiao)待(dai)清(qing)楚(chu)所(suo)造(zao)成(cheng)的(de)假(jia)故(gu)障(zhang)。
(4)一台10 t雙梁式起重機，起吊能力下降，隻能吊起5 t多的重物。經幾次維修都認為是電氣部分老化造成的。但檢查電氣部分中，從電源的進戶到控製器，線徑大小符合標準；各接觸器觸點0t重物正常。
對dui此ci故gu障zhang現xian象xiang，一yi般ban檢jian修xiu經jing驗yan多duo在zai電dian氣qi部bu分fen，如ru線xian徑jing不bu夠gou，主zhu觸chu點dian接jie觸chu不bu好hao，電dian阻zu器qi接jie線xian有you誤wu等deng都dou會hui造zao成cheng起qi吊diao能neng力li降jiang低di，所suo以yi多duo次ci檢jian修xiu都dou在zai電dian氣qi部bu分fen著zhe手shou，但dan這zhe個ge假jia故gu障zhang被bei定ding滑hua輪lun防fang護hu罩zhao所suo遮zhe擋dang，使shi檢jian修xiu走zou了le彎wan路lu。吊diao車che修xiu理li這zhe也ye說shuo明ming，起qi重zhong設she備bei是shi機ji電dian一yi體ti的de，電dian氣qi部bu分fen與yu機ji械xie部bu分fen是shi不bu可ke分fen的de，隻zhi要yao細xi心xin檢jian查zha，全quan麵mian觀guan察cha，一yi些xie假jia故gu障zhang是shi能neng識shi別bie。
