Clean the door opening and remove the excess. Make sure both sides of the door opening are vertical.
Install the top shaft part on the door frame.
Use screws or rivets to assemble the three profiles of the door frame.
Install the floor shaft, open a square pit with length of 170mm, width of 120mm and depth of 55mm on the ground, and pour mortar. When fixing the floor shaft, the center line of the top shaft is perpendicular to the center of the bearing of the floor shaft. Fix the floor shaft. After the cement is dried, proceed to the next step.
Install the upper shaft and lower shaft of the door body.
Before installing the door body, attention should be paid to: loosen the anti-theft locking screw of the door leaf; before installing the door leaf, grease the floor shaft to make the door open and close freely and increase the service life.
Adjust the front, back, left, right and up and down directions of the door leaf: loosen the cover plate and use a wrench to adjust the screw of the floor shaft; adjust the lower axis of the door leaf by adjusting the hexagonal screw on the lower axis clockwise, with the door leaf upward, and the door leaf downward.
Tighten the anti-theft card screw.
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