For the installation of door closers, those who have a little knowledge may be able to do it by themselves. There are many kinds of door closers, so the installation methods of different door closers are also slightly different. Today I share with you the explanation of the installation methods of automatic door closers without brackets. The steps are as follows:
1) When installing the automatic door closer without bracket, first find one or two special tools for climbing operation (chair, herringbone ladder), and the tools found should be safe.
2) When the electric door closer without bracket is used, first assemble eight to thirty supporting rods, and at the same time distinguish how many left leaves and how many right leaves. The regulating valve of the fire door closer is on the right side, and the right leaf (opposite to the hinge) is on the opposite side. After the support rod is separated, the upper side of the vertical fire door closer of the big rod shall be completed, and the small rod shall be placed.
3) At the beginning of the installation of the main body of the fire door closer, the screw holes of the frame belt have already been drilled. Make the regulating valve face the hinge side of the hinge, and install the screw with the big rod facing down (upward for formal installation). The four short screws need not be tightened with one screw. After the four screws are tightened, each part is tightened one by one. The specific supplementary contents are as follows: the screws must be screwed to the bottom, and the screws that cannot be screwed to the bottom should be threaded with a tap to ensure that the screws are tightened, and the automatic door closer for fire doors and windows should rotate properly.
4) After the main structure is installed, the small rod is now installed, and the screw holes on the door frame have also been drilled. First move the small rod onto the leaf, erect the small rod vertical leaf (the door is closed), and install the screws. Bend the big rod to the small rod (the length of the small rod can also be adjusted), adjust the length of the small rod, install the screws after connection, and open and close the door.
5) After installation, try opening and closing the door. The speed of opening and closing the door is 4-6 seconds, and the speed of closing the door is 1 second. If the valve is not adjusted, turn clockwise to decrease the speed and check the lifting speed. Normally, the regulating valve on the left automatic door closer is the closing speed, and the opposite is true for the right door closer.
6) . For single door, the left door is the same as the left door, and the right door is the same as the right door.