Analysis of the two common faults -- "leakage" and "overheating" reason:

卷扬机在长时间工作的情况下经常会发生漏油和过热的现象。卷扬机漏油，要注意观察油封部位，检查油封是否有龟裂、内唇口有无开裂或翻边。还要注意“三个检查”：检查油封与主轴结合面有否划伤与缺陷，存在划伤与缺陷的应予更换。检查回油是否畅通，回油不畅使曲轴箱压力过高导致油封漏油或脱落，必须保证回油管最小管径，并且不扭曲、不折弯，回油顺畅。检查油封、箱体配合尺寸，不符合标准的予以更换。

Hoist in long time working conditions often spill and overheating phenomenon. The oil spill, to observe the seal parts, check the oil seal if there is crack, inner lip with or without cracking or flange. Also note that the "three check": check the oil seal combined with the main surface has scratches and defects, there are scratches and defects should be replaced. Check back to the oil flow, poor oil return to the crankcase pressure caused by high seal leak or fall off, must ensure that the minimum diameter of the oil return pipe, and no distortion, no bending, oil return smoothly. Check the oil seal, the box with the size, does not accord with a standard to be replaced.

在卷扬机的日常操作中，会因卷扬机的长时间超负荷运作而出现卷扬机过热故障。常见的发热部位有两处：卷扬机减速机出气口温度过高；运转部位发烫。

In the daily operation of hoist, because of long time hoist overload operation and the emergence of the overheat fault. Heating of common site has two parts: hoist reducer outlet temperature is too high; running parts of hot.