五秒钟灭火法不足以确定空气滤清器技术状态好坏据调查，近几年经常出现东方红系列链轨拖拉机在新换缸套、活塞后，没用上一个月就发生严重烧机油事故，鉴定缸套、活塞有的竟达到报废尺寸。经过检查分析，确定其原因是空气滤清器内部短路，即部分空气不经过滤而直接进入气... Fire extinguishing method is not enough for five seconds to determine the status of air filter technology is good or bad According to the survey, in recent years, often appear Oriental red series tractor in the new cylinder liner, the piston, the useless last month, serious burning oil accident , Identify the cylinder liner, piston actually reached some scrapped size. After the inspection and analysis to determine the reason is the air filter internal short circuit, that is, part of the air without filtering directly into the gas ...