Properly press the packing gland in case of a little bit wear and replace it in case of too much wear.

填料磨损时可适当压紧填料压盖，若磨损过多应予更换。

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The packing gland not skewed, leakage accords with a requirement, inlet valve open since pressure grouting pump, emptying.

盘车轻快自如无卡涩； 填料压盖不偏斜，渗漏符合要求，入口阀打开自压灌泵、排空。

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