起(qi)(qi)(qi)重(zhong)(zhong)機(ji)的(de)(de)(de)(de)(de)(de)定(ding)(ding)wei精度(du)是對起(qi)(qi)(qi)重(zhong)(zhong)機(ji)的(de)(de)(de)(de)(de)(de)重(zhong)(zhong)要要求(qiu)，多數采用(yong)轉角(jiao)碼盤，齒輪鏈，中(zhong)聯重(zhong)(zhong)科起(qi)(qi)(qi)重(zhong)(zhong)機(ji)售后維(wei)修站，激(ji)光頭與鋼板孔帶(dai)來保證，定(ding)(ding)wei精度(du)通(tong)常為(wei)±3㎜，高(gao)于(yu)1mm的(de)(de)(de)(de)(de)(de)精度(du)需(xu)另加定(ding)(ding)位系(xi)(xi)統(tong)(tong)。在(zai)(zai)(zai)起(qi)(qi)(qi)重(zhong)(zhong)機(ji)起(qi)(qi)(qi)升速度(du)和制(zhi)(zhi)動器(qi)方(fang)面(mian)的(de)(de)(de)(de)(de)(de)改進，則(ze)使(shi)用(yong)低速運行的(de)(de)(de)(de)(de)(de)起(qi)(qi)(qi)重(zhong)(zhong)機(ji)吊鉤精que定(ding)(ding)位，起(qi)(qi)(qi)重(zhong)(zhong)機(ji)的(de)(de)(de)(de)(de)(de)剎車(che)系(xi)(xi)統(tong)(tong)也應用(yong)微處(chu)理進行控(kong)(kong)(kong)(kong)制(zhi)(zhi)和監(jian)視工(gong)作(zuo)。 遙控(kong)(kong)(kong)(kong)系(xi)(xi)統(tong)(tong)用(yong)于(yu)汽車(che)式起(qi)(qi)(qi)重(zhong)(zhong)機(ji)及其他移動式起(qi)(qi)(qi)重(zhong)(zhong)機(ji)械，這(zhe)種(zhong)系(xi)(xi)統(tong)(tong)包括(kuo)在(zai)(zai)(zai)控(kong)(kong)(kong)(kong)制(zhi)(zhi)者身(shen)上(shang)的(de)(de)(de)(de)(de)(de)控(kong)(kong)(kong)(kong)制(zhi)(zhi)器(qi)，中(zhong)聯重(zhong)(zhong)科起(qi)(qi)(qi)重(zhong)(zhong)機(ji)，和安裝(zhuang)在(zai)(zai)(zai)起(qi)(qi)(qi)重(zhong)(zhong)機(ji)上(shang)的(de)(de)(de)(de)(de)(de)接收(shou)qi ，控(kong)(kong)(kong)(kong)制(zhi)(zhi)器(qi)具有電(dian)磁輻射(she)發(fa)生器(qi)，接收(shou)qi與作(zuo)用(yong)在(zai)(zai)(zai)起(qi)(qi)(qi)重(zhong)(zhong)機(ji)傳(chuan)動裝(zhuang)置的(de)(de)(de)(de)(de)(de)操縱機(ji)械的(de)(de)(de)(de)(de)(de)轉換部(bu)分相(xiang)連。遙控(kong)(kong)(kong)(kong)器(qi)的(de)(de)(de)(de)(de)(de)使(shi)用(yong)不僅節省人力(li)，提高(gao)工(gong)作(zuo)效率，而且使(shi)操作(zuo)者的(de)(de)(de)(de)(de)(de)工(gong)作(zuo)條件有所(suo)改善(shan)。 起(qi)(qi)(qi)重(zhong)(zhong)機(ji)的(de)(de)(de)(de)(de)(de)距離檢(jian)測防撞裝(zhuang)置，采用(yong)無線電(dian)信號(hao)型(xing)的(de)(de)(de)(de)(de)(de)防撞裝(zhuang)置，防撞系(xi)(xi)統(tong)(tong)由三相(xiang)系(xi)(xi)統(tong)(tong)組成，用(yong)來監(jian)控(kong)(kong)(kong)(kong)起(qi)(qi)(qi)重(zhong)(zhong)機(ji)前(qian)端行使(shi)距離，一般首先發(fa)出信號(hao)警示(shi)，中(zhong)聯重(zhong)(zhong)科起(qi)(qi)(qi)重(zhong)(zhong)機(ji)固(gu)定(ding)(ding)維(wei)修站點，接著將(jiang)大車(che)車(che)速減(jian)小到(dao)50%，后切斷電(dian)機(ji)電(dian)源，將(jiang)大車(che)制(zhi)(zhi)動。

4、當吊起(qi)的(de)(de)物件(jian)回(hui)轉(zhuan)(zhuan)到zhi定位(wei)置(zhi)前，應掌握好回(hui)轉(zhuan)(zhuan)慣xing，事(shi)先慢收回(hui)轉(zhuan)(zhuan)操(cao)作手柄以(yi)使(shi)物件(jian)緩慢停(ting)止(zhi)回(hui)轉(zhuan)(zhuan)，避(bi)免突然制動(dong)，以(yi)防物件(jian)因(yin)慣性產(chan)生(sheng)搖擺增加作業(ye)危險。 5、在(zai)(zai)同(tong)一個工(gong)作循(xun)環中，回(hui)轉(zhuan)(zhuan)動(dong)作應在(zai)(zai)伸臂(bei)(bei)(bei)動(dong)作和向下變(bian)幅動(dong)作之前進(jin)行(xing)，而縮臂(bei)(bei)(bei)動(dong)作和向上變(bian)幅動(dong)作則應在(zai)(zai)回(hui)轉(zhuan)(zhuan)之后(hou)完(wan)成(cheng)。 6、在(zai)(zai)起(qi)吊較重的(de)(de)物件(jian)回(hui)轉(zhuan)(zhuan)前，應再次逐個檢查(cha)支(zhi)腿工(gong)況，以(yi)防因(yin)個別支(zhi)腿發(fa)軟(ruan)或地面(mian)不(bu)良(liang)而造成(cheng)翻車(che)(che)事(shi)故(gu)，起(qi)吊較重的(de)(de)物件(jian)后(hou)，必須緩慢回(hui)轉(zhuan)(zhuan)，同(tong)時(shi)在(zai)(zai)物件(jian)兩側系上牽(qian)引繩，防止(zhi)物件(jian)搖擺，質量大(da)的(de)(de)物件(jian)發(fa)生(sheng)搖擺會(hui)使(shi)吊臂(bei)(bei)(bei)受(shou)到很大(da)的(de)(de)橫向 (側向)彎(wan)曲作用，產(chan)生(sheng)很大(da)的(de)(de)橫向彎(wan)矩，嚴重時(shi)會(hui)損壞吊臂(bei)(bei)(bei)，特別是鵝頭式吊臂(bei)(bei)(bei)和長(chang)吊臂(bei)(bei)(bei)更應注意(yi)這種(zhong)危害性。 7、小(xiao)型吊車(che)(che)在(zai)(zai)岸邊、碼頭等處(chu)作業(ye)時(shi)，小(xiao)吊車(che)(che)不(bu)得(de)快速(su)回(hui)轉(zhuan)(zhuan)，以(yi)防因(yin)慣性力作用小(xiao)吊車(che)(che)發(fa)生(sheng)落水(shui)。 8、節(jie)(jie)氣門操(cao)縱(zong)小(xiao)吊車(che)(che)在(zai)(zai)起(qi)重作業(ye)中節(jie)(jie)氣門不(bu)宜過大(da)，否(fou)則容易(yi)損壞液(ye)壓泵，轉(zhuan)(zhuan)速(su)不(bu)應大(da)于 1500r/min。

排(pai)除(chu)(chu)方(fang)(fang)法：檢修(xiu)(xiu)安全閥(fa)各零件(jian)；修(xiu)(xiu)理或(huo)更(geng)換油(you)(you)(you)泵；調整間隙。 3.油(you)(you)(you)泵壓力不(bu)穩定或(huo)振(zhen)動厲(li)害(hai) 原因：油(you)(you)(you)液不(bu)足(zu)或(huo)有(you)(you)空氣吸入；齒(chi)輪(lun)(lun)(lun)(lun)與殼體(ti)(ti)內表面有(you)(you)摩擦。排(pai)除(chu)(chu)方(fang)(fang)法：加(jia)油(you)(you)(you)、消(xiao)除(chu)(chu)漏氣；更(geng)換齒(chi)輪(lun)(lun)(lun)(lun)。 4.液壓油(you)(you)(you)泵供油(you)(you)(you)不(bu)足(zu)或(huo)斷油(you)(you)(you) 原因：泵吸油(you)(you)(you)管變形，通道變小或(huo)堵(du)塞(sai)；軸承(cheng)損(sun)壞，齒(chi)輪(lun)(lun)(lun)(lun)刮泵體(ti)(ti)造成(cheng)間隙過大(da)而內漏嚴重；齒(chi)輪(lun)(lun)(lun)(lun)損(sun)壞，齒(chi)輪(lun)(lun)(lun)(lun)與泵體(ti)(ti)卡死；柱塞(sai)泵柱塞(sai)與缸體(ti)(ti)磨損(sun)嚴重或(huo)配(pei)(pei)油(you)(you)(you)盤密封(feng)區密封(feng)不(bu)良。排(pai)除(chu)(chu)方(fang)(fang)法：清除(chu)(chu)堵(du)塞(sai)污(wu)物，換新管；輕者更(geng)換軸承(cheng)、齒(chi)輪(lun)(lun)(lun)(lun)、配(pei)(pei)對修(xiu)(xiu)磨柱塞(sai)偶件(jian)，嚴重者換泵。