If there's still some clearance, slightly loosen the adjusting nut (for retraction of the boom).

如果还留有某些间隙，就稍微拧松调整螺母(对于起重臂缩回)。

youdao

If there's still some clearance, slightly loosen the adjusting nut (for retraction of the boom).

如果还留有某些间隙，就稍微拧松调整螺母(对于起重臂缩回)。

youdao