在调节完成后，紧固锁紧螺母，重新安装快速进水手柄帽。
After completing adjustments, tighten the lock nut and replace the fast fill lever cap.
承包商应于接头安装后一周重新拧紧螺母，并就在轨道最终衬砌和整平前再一次拧紧。
The contractor shall retighten the nuts one week after joint installation and a second time just before final lining and leveling of the track.
调整后，拧紧锁紧螺母。
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