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1.故障现象1台PY160C型平地机使用中突然发生缺挡故障,该故障表现为:将变速杆推至Ⅱ挡位置时,平地机既不能前进也不能后退,高、低速挡位结合正常。将变速杆推至Ⅰ挡位置时,平地机前进及后退正常,高、低速挡位接合也正常。2.工作原理PY160C型平地机采用Z304型动力换挡变速器。该型变速器由4个换挡离合器(Ⅰ挡和Ⅱ挡离合器,前进和后退离合器)、1套机械式
1. Symptom 1 PY160C grader suddenly lost the use of the fault, the fault performance: the gear lever into the second gear position, the grader can neither forward nor back, high and low gear with normal. When the shift lever is pushed to the first gear position, the grader forwards and backs normally, and the engagement of the high gear and the low gear is normal. 2. Working Principle PY160C grader using Z304-type power shift transmission. This type of transmission consists of four shift clutches (Ⅰ block and Ⅱ block clutch, forward and reverse clutch), a set of mechanical