Lower the grab link until it engages the lifting chain.
将抓钩链环放低，使其啮合到提升链条。
The two is: first, according to the advantages and disadvantages of truck type, the self lifting mechanism of truck for link combination type lifting device.
二是：首先，根据自卸车类型的优缺点，确定了自卸车的举升机构为连杆组合式举升装置。
The two is: first, according to the advantages and disadvantages of truck type, the self lifting mechanism of truck for link combination type lifting device.
二是：首先，根据自卸车类型的优缺点，确定了自卸车的举升机构为连杆组合式举升装置。
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