Three precautions for maintenance of boarding axle

随着社会的快速发展，对于机械化施工企业来说，液压机械的好坏是企业正常生产的直接因素。 在液压驱动的建筑机械的情况下，液压系统的正常操作是其良好技术条件的主要指标。 合格的液压油是液压系统可靠运行的保证。 适当的维护是液压系统可靠运行的基础。 为此，我根据工作实践，对一般工作环境中工程机械液压系统的维护进行了粗略的讨论。

With the rapid development of society, the quality of hydraulic machinery is a direct factor for the normal production of mechanized construction enterprises. In the case of hydraulic driven construction machinery, the normal operation of the hydraulic system is the main indicator of its good technical conditions. Qualified hydraulic oil is the guarantee of reliable operation of hydraulic system. Proper maintenance is the foundation of reliable operation of hydraulic system. Therefore, according to my work practice, I have a rough discussion on the maintenance of the hydraulic system of construction machinery in the general working environment.

1.选择液压油

1. select hydraulic oil

液压油用作液压系统中的压力，润滑，冷却和密封。 液压油选择不良是液压系统早期失效和耐久性的主要原因。 液压油应根据随机“使用说明”中规定的等级进行选择。 在特殊情况下使用替代油时，其性能应与原始等级的性能相同。 不同等级的液压油不能混合，以防止化学反应和液压油的性能变化。 深棕色，乳白色，有气味的液压油是一种变质油，不能使用。

Hydraulic oil is used for pressure, lubrication, cooling and sealing in the hydraulic system. Poor selection of hydraulic oil is the main reason for early failure and durability of hydraulic system. The hydraulic oil shall be selected according to the grade specified in the accompanying "instructions for use". When alternative oil is used under special circumstances, its performance shall be the same as that of the original grade. Different grades of hydraulic oil shall not be mixed to prevent chemical reaction and performance change of hydraulic oil. The dark brown, milky white and odorous hydraulic oil is a deteriorated oil and cannot be used.

2.防止杂质进入

2. prevent impurities from entering

清洁液压油是液压系统的生命。 液压系统中有许多连接部件，有些具有阻尼孔，有些具有间隙。 如果固体杂质侵入，将导致意外的应变，卡片发出，油路堵塞等，这将危及液压系统的运行。 通常，固体杂质侵入液压系统的方式是：液压油是不洁净的; 加油工具是不洁净的; 加油，维修和保养是无意的; 液压元件脱落。 可以防止固体杂质从以下方面侵入系统：

Cleaning hydraulic oil is the life of hydraulic system. There are many connecting parts in the hydraulic system, some with damping holes and some with clearances. If solid impurities invade, it will cause unexpected strain, card issue, oil circuit blockage, etc., which will endanger the operation of the hydraulic system. Generally, the ways in which solid impurities invade the hydraulic system are as follows: the hydraulic oil is unclean; Refueling tools are not clean; Refueling, repair and maintenance are unintentional; Hydraulic components fall off. It can prevent solid impurities from invading the system from the following aspects:

3.液压清洁

3. hydraulic cleaning

清洁油使用与系统相同的液压油。 油温在45到80°C之间。 尽可能使用大流量从系统中去除杂质。 液压系统应清洗三次以上。 每次清洁后，油在热时会从系统中排出。 清洁后，清洁过滤器，更换新过滤器，然后添加新油。

The cleaning oil uses the same hydraulic oil as the system. The oil temperature is between 45 and 80 ° C. Use as much flow as possible to remove impurities from the system. The hydraulic system shall be cleaned more than three times. After each cleaning, the oil will drain from the system when it is hot. After cleaning, clean the filter, replace it with a new one, and then add new oil.

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