These connections are called hand - tight connections 这些接头称为手紧接头。
2.
Reinstall turn indicator assembly . scale retaining ring should be hand - tight do not overtighten 重新安装旋转指示器总成。刻度固定环应该用手紧固。不要过紧。
3.
Reassemble the check module in the reverse order . install the check modules into the valve body hand - tight . replace the cover 按照相反顺序重新组装止回阀模块。将止回阀模块安装进阀体内，用手紧固。重新安装阀盖。
