近日，我们在路检路查中发现有不少机手为了多装载而私自改造拖拉机拖斗，这在运输中潜伏着很大的事故隐患，对交通安全构成了严重威胁。 一是任意改造拖拉机挂车。其挂车高度尺寸超出车头十几厘米甚至更多；二是严重超出核定的载重量，如核定１．５ｔ的拖拉机竟装载５～６ｔ； In the past few days, we found on the road inspection that many of the trainees who improvise tractor trailers for multi-loading have lurked a great potential hazard in transport and pose a serious threat to traffic safety. First, any transformation tractor trailer. Its trailer height exceeds the front ten centimeters or more; second is seriously beyond the approved load, such as the approved 1.5t tractor actually loaded 5 ~ 6t;