The fault of the hydraulic hoist often appear: fault action (such as starting not normal, actuator speed too slow or not under load action, actuator velocity decreased etc.); pressure of fault (such as pressure is not up to the requirements, pressure instability or pressure regulator failure, pressure impact); noise and vibration; temperature high oil pollution.

液压卷扬机产生故障的原因除没计、制造、安装未达到规范要求以及设备长期使用后零部件的正常磨损外，由于操作管理不当引起的故障尤应注意。

Hydraulic hoist failure did not design, manufacturing, installation and removal does not meet the specification requirements and equipment after long-term use parts of the normal wear and tear, because the fault caused by improper operation management, more attention should be paid to.

液压卷扬机经常出现的故障与机械传动、电气传动相比具有多样性和复杂性，且与操作管理密切相关的特点。

Compared with the hydraulic winch frequent faults and mechanical transmission, electrical transmission has the diversity and complexity of operation and management, and related.

液压卷扬机经常是几个故障同时出现并交织在一起，这些故障有的是由某一液压元件失灵引起，有的则是系统中多个液压元件的综合因素造成。

The hydraulic winch is often several faults occur at the same time and intertwined, these faults are caused by a hydraulic component failure, some comprehensive factors of multiple hydraulic component in the system.

液压卷扬机即使是同一故障，产生的原因也不一样。特别是现在的船舶液压设备都是机械、液压、电气以及微型计算机的共同组合体，产生故障的原因更是多方面的。同一原因，也可能引起不同的故障。

Hydraulic hoist even for the same fault, the causes are not the same. Especially the ship hydraulic equipment are now common combination of mechanical, hydraulic, electrical and computer, the reasons of the failures even more aspects. The same reason, may also cause different failure.