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内蒙古大兴安岭森林采伐、造材多数使用GJ85型油锯，该锯配套动力为E40F二行程汽油机。GJ85型油锯在使用中会出现各种故障，据多年经验对常见的故障现象进行了分析、判断，并提出了具体的处理方法。
Daxinganling forest harvesting in Inner Mongolia, the majority of timber used GJ85 chain saw, the saw supporting power for the E40F two-stroke gasoline engine. GJ85 chain saw in use there will be a variety of failures, according to many years of experience on the common phenomenon of failure were analyzed to determine and put forward a specific approach.