1．经验判断法视觉检查首先应在机器不工作状态下进行。用眼观察有无破裂、漏油、松脱、变形、动作缓慢或不均等现象。如有油液渗漏但不严重且难以确定其准确位置时, 可用洁净布将可疑部位擦干,仔细观察找到渗漏点。然后,对在停机状态下不易观察到的故障,可在开机时使故障复现,再进行检查。但必须作好安全防护措施,防止故障加重等。 1. Experience judgments visual inspection should first be carried out in the machine does not work. Eye with or without rupture, oil spills, loose, deformation, slow or unequal movements. If the oil leakage but not serious and difficult to determine the exact location, can be a clean cloth to dry the suspicious area, carefully observed to find the leakage point. Then, in the shutdown state is not easy to observe the fault, the fault can be reproduced at boot time, and then check. However, safety precautions must be taken to prevent the problem from getting worse.