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拧松螺钉，并将多余机油排放到机油收集箱中。
Loosen screw and drain off excess oil into an oil collection container.
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调整旋梭时，请卸下针板，拧松旋梭固定螺丝6，然后进行调整。
Remove the throat plate, loosen hook screw 6 and adjust the hook.
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调整旋梭时，请卸下针板，拧松旋梭固定螺丝6，然后进行调整。
Remove the throat plate, loosen hook screw 6 and adjust the hook.
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