• 
    
      <td id="tkmsx"><ins id="tkmsx"><label id="tkmsx"></label></ins></td>
    1. <p id="tkmsx"><ins id="tkmsx"><label id="tkmsx"></label></ins></p>

          1. 三年在线观看视频_久久亚洲成人_丰满人妻久久一区二区三区69_天天躁日日躁狠狠_来一水AV@lysav

            NewsHome > News > Industry dynamics

            What if the drill pipe of rotary drilling rig drops slowly?
            release time:2019-3-28 15:49:54      hit count:1878

            The trouble is that the drill pipe drops slowly after shutdown. The reason may be that the floating solenoid valve is stuck or the brake slips.

            If the floating solenoid valve is stuck, the drill pipe may drop slowly even without stopping the machine. At this time, the floating solenoid valve can be disassembled, the spool can be disassembled and cleaned, or the valve can be replaced.

            After long-term wear and tear of the brake pad, it will not provide enough braking force, which will cause braking failure and slow down of the drill pipe. At this time, the brake pad can be replaced.


            Previous: Secret Record of Maintenance and Maintenance of Grazing Machine
            Next: What is the effect of adding retarder in cement concrete in sliding-form construction?

            Back to list

            News you are interested in
            三年在线观看视频_久久亚洲成人_丰满人妻久久一区二区三区69_天天躁日日躁狠狠_来一水AV@lysav

          2. 
            
              <td id="tkmsx"><ins id="tkmsx"><label id="tkmsx"></label></ins></td>
            1. <p id="tkmsx"><ins id="tkmsx"><label id="tkmsx"></label></ins></p>

                  1. 视频| 永新县| 福清市| 新余市| 横峰县| 鄱阳县| 前郭尔| 灵山县| 松阳县| 河津市| 三江| 正蓝旗| 黔西| 鄂州市| 海阳市| 巨鹿县| 西昌市| 德清县| 澜沧| 和硕县| 高阳县| 合水县| 伊通| 沽源县| 措美县| 澳门| 东安县| 佳木斯市| 浦县| 巧家县| 赤水市| 德庆县| 无棣县| 阜城县| 宜丰县| 张北县| 信丰县| 安仁县| 丹东市| 郴州市| 肃北|