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6. Put the steel wire rope through the pulley on the door frame as shown in Figure 3, so that the steel
wire rope is located on the inner side of the door frame and on the same plane as the pulley, and then
the steel wire rope sags naturally. Keep the length of both sides equal, and naturally sag to the ground.
7. Fix each end of steel wire rope to the hole on bottom bracing tube with steel wire clamps. Make
sure fix it firmly.
8. Put the door bracing tube into the track from the gap at the bottom,from top to bottom.