Fire door closers have become indispensable fire safety equipment in modern buildings. There are fire door closers in every building. Fire door linkage door closers are also installed in buildings with better fire safety awareness. . Among them, fire door closers are mainly divided into normally open fire door closers and normally closed fire door closers. Today I will introduce you how to install normally open fire door closers.
Let's talk about the installation of normally open fire door closers. The installation of normally open fire door closers mainly consists of 10 steps:
1. In general, the door closer will be equipped with an instruction manual, which contains a detailed installation model. We must read the instruction before installing, according to the door opening direction, the size of the closing force, and the door closer body, connecting seat and door hinge The installation size of the room determines the installation location.
2. According to the requirements of the closing force, the closing force of the door closer can be changed by reversing the connecting seat by 180° or changing the connection position between the connecting rod and the connecting seat. When adjusting, generally the greater the distance between the connecting rod and the center line of the door hinge, the smaller the closing force of the normally open fire door closer, and vice versa, the greater the closing force of the door closer.
3. Determine the position of the door closer installation screws according to the position instructions on the installation template, and then drill and tap.
4. Install the body of the normally open fire door closer with screws.
5. Install and fix the connecting seat of the normally open fire door closer.
6. Install the drive plate of the normally open fire door closer with screws.
7. Adjust the adjusting rod to 90° with the door frame, and then connect the connecting rod with the drive plate.
8. Install the plastic cover of the door closer to catch the hydraulic oil leaking from the door closer and prevent the leaked hydraulic oil from contaminating the door closer or fire door.
9. After the door closer is installed, check whether the fixing screws are locked, and there must be no looseness or looseness. Open the door to the maximum door opening position and check whether the hinged arm of the door closer will collide with or rub against the door or door frame.
10. Adjust the closing speed of the door closer as required. Nowadays, many door closers can adjust the speed. Generally speaking, the door closer has two speed adjustments. You can adjust and choose the appropriate closing speed according to the situation.