The torque converter can automatically change the speed of the turbine according to the load change and improve the driving capacity of the vehicle. It is a very important part of the underground loader. How to maintain it in use?

①每班工作后，应检查井下装载机变矩器有关机件的结合紧固情况，如有松动，应及时拧紧。

① After each shift, check the connection and fastening of relevant parts of torque converter of underground loader. If it is loose, tighten it in time.

②每工作100h后，拧下变矩器盖上的加油螺帽，用油位尺检查油面高度，油面高度应在油位尺上下刻线之间。测量时，拖拉机应处于水平位置。油量不足时应及时添加。

② After every 100h of operation, unscrew the oil filling nut on the torque converter cover, and check the oil level with the oil level gauge, which shall be between the upper and lower scribed lines of the oil level gauge. When measuring, the tractor should be in a horizontal position. When the oil quantity is insufficient, it shall be added in time.

③润滑油为齿轮油，要注意保持井下装载机齿轮油的清洁，油中不应有机械杂质，否则会加速齿轮的磨损。加油时，应注意加油工具和加油口的清洁。

③ The lubricating oil is gear oil. Pay attention to keep the gear oil of underground loader clean. There should be no mechanical impurities in the oil, otherwise the wear of the gear will be accelerated. When refueling, pay attention to the cleanliness of refueling tools and refueling ports.

④井下装载机每工作500h左右应清洗变矩器，更换齿轮油。

④ The torque converter shall be cleaned and the gear oil shall be replaced every 500h of underground loader.

清洗方法如下：装载机工作结束后趁热放出赃油，然后加入适量的清洁柴油，拖拉机前进、倒退数次，然后放出柴油，再加入清洁齿轮油。注意不同季节应选用不同规格的齿轮油，冬季用冬季齿轮油，夏季用夏季齿轮油。

The cleaning method is as follows: after the loader works, release the dirty oil while it is hot, then add an appropriate amount of clean diesel, move the tractor forward and backward several times, then release the diesel, and then add clean gear oil. Note that different specifications of gear oil shall be selected in different seasons. Winter gear oil shall be used in winter and summer gear oil shall be used in summer.