The quality of the beads welded with inverted taper and cylindrical screw pin is poor, only partially jointed or disjointed.

采用倒圆锥形和螺柱形搅拌头焊接的接头焊合不良，质量较差。

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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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Remove one socket pin head screw (c), three socket head bolts (d) and gear operator cover (e).

拆卸一个灯头钉头螺丝(C)，三个套筒头螺栓(d)和齿轮执行机构盖(E)。

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