Remove one socket pin head screw, three socket head bolts and gear operator cover.

拆卸一个灯头钉头螺丝，三个套筒头螺栓和齿轮执行机构盖。

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After is has been confirmed to meet the requirements, screw down the bolts.

经检查符合要求后将螺栓拧紧。

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After is has been confirmed to meet the requirements, screw down the bolts.

经检查符合要求后将螺栓拧紧。

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