Assure both mounting base of gear operator ( 3 ) and valve top flange ( 6 ) are clean and dry 确保齿轮操作机构( 3 )和阀门顶部法兰( 6 )的安装基座清洁并且干燥。
2.
The contractor shall provide a concrete pump - mounting base for each pump as shown in the plans 根据说明书的要求，承包商应该负责为每台泵配置一个混凝土泵安装基座。
3.
The height of the base shall be sufficient so that the centerline of the suction elbow lines up with the centerline of the suction piping and shall include an allowance for grouting between the concrete base and the pump mounting pedestal in accordance with the pump manufacturer ' s recommendations 根据泵制造商的建议，泵基座应该有足够的高度，使得吸入弯头的中心线能够与吸入管道中心线连接起来，混凝土基座与泵安装基座之间有足够的空间用于灌浆。
