1、升降貨梯http://www.jntr168.com/超負(fù)荷作業(yè)危及貨物安全超負(fù)荷時(shí)升降機(jī)處于不穩(wěn)定狀態(tài),，難以控制,，危及人身安全不論發(fā)生機(jī)損或貨損事故，都有可能同時(shí)發(fā)生人身傷亡事故,。
Cargo lift when the lift is in operation endanger the safety of the goods overload overload unstable and difficult to control, endangering personal safety regardless of the occurrence of loss or damage to cargo aircraft accident,personal injury are likely to occur simultaneously.

2,、引起升降貨梯http://www.jntr168.com/超負(fù)荷的結(jié)構(gòu)有輪胎負(fù)荷過(guò)大，變形增大,，容易從胎側(cè)較薄處發(fā)生爆破和輪輞變形,，會(huì)引起車架變形,、鉚釘松動(dòng)甚至斷裂，從而改變總成的相對(duì)位置,，使升降貨梯的正常結(jié)構(gòu)遭到破壞。嚴(yán)重影響升降貨梯性能,，特別是轉(zhuǎn)向和制動(dòng)性能,，由于升降貨梯是后輪轉(zhuǎn)向，超栽時(shí)轉(zhuǎn)向輕飄,，車輪擺動(dòng),，不易控制，且制動(dòng)性能顯著下降,，不利于安全,。超載過(guò)多，容易引起升降貨梯各機(jī)件損壞,，會(huì)造成升降機(jī)顛覆,，貨物摔壞，造成人身傷亡,、升降貨梯損壞和貨物破損等一系列事故,。
Structure causing cargo lifter has overload tire load is too large, deformation increases, blasting and rims deformation will cause frame deformation prone from sidewall thinner at loose rivets and even rupture, thus changing the relative position of the assembly, so that cargo lifter normal structure was damaged. Seriously affect cargo lifter performance, especially steering and braking performance, since cargo lifter is rear-wheel steering, steering buoyant ultra planted, wheel swing, difficult to control and significantly decrease the braking performance, it is not conducive to safety. Overload too much, prone to mechanical damage each cargo lifter, can cause lift subversion, cargo broke,resulting in personal injury, damage and cargo damage cargo lifter and a series of accidents.