1. External door top door closer is the most common way of installation. The main feature is that the installation is convenient and simple. The door does not need slotting, and the door closing speed is convenient. It can be used in schools, hospitals, office buildings and hotels and other doors. (1) installation steps Step 1: installing the body closer installed in the upper part of the door leaf near the hinge side, one end of the screw speed, body oriented hinge, otherwise, the goalkeeper cannot open, if forced open, then the door closer, the door and the door frame will be destroyed. The body is fixed with four screws on the door leaf, then the main arm set into the gear shaft is arranged on the other end cap and tighten the fastening screws.
Step two: use the two screws connecting rod, the connecting rod is fixed on the doorframe and door frame. A connecting rod at right angles. Loosening the lock nut, adjusting rod to proper length, gently in the main arm, the main arm pin is inserted into the end of the connecting rod and connecting rod hole, check the door frame at right angles. The washer, with countersunk head screws fastening. The installation is complete the lock nut. Step three: adjust the speed of closing the door closing speed is ready to adjust, if you need to change the speed, the clockwise rotation is counterclockwise for deceleration, acceleration.
(2) Note A mounted door closers is not suitable for the two-way opening door. B speed regulation switch speed control gate. Screw clockwise to slow counterclockwise rotation. C counterclockwise rotation, speed regulating valve is not out over the surface of the shell, and to prevent leakage.
2. door closer embedded in the top of the door (1) Embedded door closers is embedded in the top of the door closers have opened the doors and groove will open good groove sliding into the door frame. The embedded door closers is installed in the door and the door frame groove, so when the door is closed without affecting the appearance of the door. It is suitable for high speed the hotel room door.
(2) Hydraulic buffer spring rod to a restoring torque, the connecting rod to rotate away from the hinge direction, so as to drive the slide in the slideway and move away from the direction of the door hinge, reach the purpose. (3) A installation points in the frame, the fan should be in place before the first slot is arranged at the bottom of the door sill and door frame at the top of the corresponding good on the B. Then at the door before the installation of the door closer is buried in the groove of the slide with the screw groove. The door frame C frame, fan installed and fixed with nut connecting rod fixed on the spring shaft.D can also be such as the door frame and the door are fixed after repeated B C action
3. Intelligent linkage door closers installation in < > in the company of Fulda is available in the video!