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1.存在问题AR-250E型吊车是我国上世纪90年代引进的全地形大吨位进口吊车,在油田、矿山的生产作业中发挥了巨大作用,但是在使用维修过程中我们也发现了该车型存在的一些问题,根据对AR-250E型吊车的跟踪观测及使用反馈的信息,我们认为该车的CM300-12型变速
1. Existing Problems AR-250E crane is an all-terrain imported large tonnage crane imported from China in the 1990s and has played a great role in the production of oilfields and mines. However, we also found that the model exists in the course of maintenance Some of the problems, according to the tracking of AR-250E crane and the use of feedback information, we believe that the car’s CM300-12 speed change