256HC Mast Section Use and maintenance of tower crane swing mechanism
1. The tower crane rotary mechanism shall not be operated or stored in corrosive gas environments such as acids and bases. The working environment temperature is -20 °C to 40 °C. The power continuity of tower crane rotary motor is not more than 40 %; Motor working level M5; The inner bearings of the tower crane rotary motor need to be replaced once every 6 months.
2. Prior to installation, the unit shall fully check the fastening condition of each part of the connection bolt, and whether the electrical line is moving normally after being energized.
3. When the reducer is assembled with the upper turntable, bolt it and ensure that the output gear is engaged in parallel and correctly with the rotary support.
4. The speed reducer uses medium-load industrial gear oil, N100 in winter and N150 in summer. After the first operation for 3 months, the new oil must be replaced. After every 1500 hours of work, the lubricant must be replaced. When the oil is changed, all the old oil in the body must be released, and then cleaned. The cleaning should be strictly kept clean, and then new oil should be added.
5. It is forbidden to use electromagnetic brakes for a long time during operation to avoid damage in advance.
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