When is the weekly inspection of crown block?

The weekly inspection of the crane is on Saturday.

How often should the crown block be maintained? Generally speaking, the crown block in the factory should be inspected once every 1 month, and the brakes should be adjusted. Overhaul once every two years.

The crown block is xi's car carrying the sun in China myths and legends. Li Bai, a poet in the Tang Dynasty, wrote a poem, "Give Pei 17 Zhong Kan Early Autumn": "The southern star becomes a fire, and the heat stays in Danxia. The situation is urgent, and the six dragons turn to the crown block. "

Che (traditional Chinese character: _) is the196th surname in China, with a large population, accounting for about 0.04% of the Han population in China. The invasion of Yi nationality at the end of Song Dynasty and the beginning of Yuan Dynasty led to the situation that Che descendants were all over Fujian and Guangdong. At the beginning of the Ming Dynasty, Shanxi Che family, as one of the surnames of people who moved, moved to Hubei, Hunan, Jiangsu, Shandong, Hebei and other places. From the middle of Ming Dynasty to Qing Dynasty, some taxi drivers moved to Taiwan Province Island and set sail in Southeast Asia. With the arrival of the times when Shandong people went to Guandong, Shanxi people went to the west, Shaanxi people went to Gansu, Henan people moved to Shaanxi, and Huguang people flooded Sichuan, the government forced immigrants and people spontaneously immigrated, and the people surnamed Che took root in the northwest, northeast and southwest.