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一、发生及现象:一台 S8-12.5A 机器,事故发生时有时突然卸载,但隔2—3分钟又正常,后又完全卸载,观察无油压或油压过低。但逐步上载到2/3时能正常运行,上满后油压明显下降后卸载,空载运行一会儿又能逐步上载到2/3,上满后即又重复以上现象,即只能保持在2/3处运行。二、观察:从机器排水漏斗看冷却水正常,从轴封端看油温也正常约50℃。此机器的油
First, the occurrence and phenomenon: a S8-12.5A machine, the accident sometimes unload suddenly, but every 2-3 minutes and normal, and then completely unloaded, observe no oil pressure or oil pressure is too low. But gradually up to 2/3 to normal operation, the full after the oil pressure dropped significantly after unloading, no-load operation for a while can be gradually uploaded to 2/3, after the full and then repeat the above phenomenon, which can only be maintained at 2 / 3 run. Second, observe: look from the machine drain funnel normal cooling water, the shaft seal from the end of the oil temperature is also normal about 50 ℃. This machine’s oil