我厂于1979年开始按国家建委统型图纸批量生产建设型一吨机动翻斗车。1980年用户反映翻斗车在使用中有二档自动脱档现象,这一问题引起了我们的重视。为此,我们进行了调查。调查结果证明,在使用半年以后,有的翻斗车开始产生二档脱档现象,主要发生在重车爬坡时,自动脱档车的数量约占15%左右。 In 1979, our factory started mass production of a one-ton mobile dump truck according to the unified drawings of the National Construction Committee. In 1980, the user reported that the dump truck had a second-stage automatic shift from being used. This problem has attracted our attention. For this reason, we conducted an investigation. The survey results showed that after half a year’s use, some dump trucks started to produce the second gear shift, which mainly occurred when the heavy vehicles climbed, and the number of automatic vehicle shifts accounted for about 15%.