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我厂有VW－０．４２／７型全无油润滑空压机，为热煤炉提供雾化。空压机每次运行不到５００h，便出现声音异常、排出压力不足现象。经多次开机检查发现，均由于滚针轴承架断裂、滚针脱落、连杆小头间隙增大、滚针轴承松动造成。经过查阅大量资料和现场分析得知：造成这种现象的
I plant VW-0.42 / 7 all-oil-free air compressor, to provide thermal coal stove atomization. Air compressor less than 500h each run, there will be abnormal sound, discharge pressure shortage phenomenon. After several boot check found that both due to needle bearing frame fracture, needle drop, connecting rod head clearance increases, needle roller bearings caused by loosening. After access to a wealth of information and on-site analysis that: causing this phenomenon