Shield shield tail brush removal and replacement parts segment sequence above the shield tail brush, shield accessories before replacing construction preparation work is completed later can be shield tail brush replacement. When below to replace the shield tail brush, tube sheet capped block K block is located pipe ring 1:00 position as an example, see Figure concrete replacement process. This figure is a shield tail cap replaced to block K block segment located 1:00 as an example of. In addition, you can order replacement → according to K → C B → A1 → A2 → A3 segment in a clockwise direction, can follow K → C → A3 → A2 → A1 → B segment counterclockwise. QQ screenshot 20150526145042.jpg shield tail brush, shield parts, brush seals shield, shield tail wire brush, brush shield tail manufacturers, Shanghai Xiang Shield Machinery Co., Ltd. http://www.shxiangdun.com