2. Then remove the lock on the window, pry open another sealing edge, unscrew the wheel, and remove the damaged plastic steel door and window pulley.
3. Install the window frames in the reverse order. If both sashes of a window need to change pulleys, the positions must be balanced, otherwise it will affect your future use, or the doors and windows will not be installed, which will bring unnecessary trouble.
4. Lower the sash to a lower position, confirm whether the pulley of the plastic steel door and window is in normal use, and then tap the intact edge with a rubber hammer or hammer. If all the above are done, the new pulley can be used normally.
Plastic steel doors and windows are made of polyvinyl chloride (UPVC) resin as the main raw material, with a certain proportion of stabilizers, colorants, fillers, ultraviolet absorbers and so on. Extruded into profiles, and then cut, welded or screwed to make door and window sash.
Equipped with sealing strip, top, hardware, etc. At the same time, in order to enhance the rigidity of the profile, it is necessary to fill the cavity of the profile with steel lining (reinforcing ribs), so the doors and windows made are called plastic steel doors and windows.
Extended data:
classify
1. According to the opening mode, it can be divided into: fixed window, upper hanging window, middle hanging window, lower hanging window, vertical rotating window, casement window, pulley casement window, sash lower hanging window, sliding door, sliding casement window, folding door, floor spring door, lifting sliding door, sliding folding door and inward sliding door.
2. According to the performance, it is divided into ordinary doors and windows, soundproof doors and windows, and thermal insulation doors and windows.
3. According to the application position, it is divided into: internal doors and windows, external doors and windows.
4. Classification by brand: German Xinlin plastic steel doors and windows, Scott doors and windows, Shide doors and windows, Conch doors and windows, Wu Zhitao doors and windows, Haojiaxi doors and windows.
5. According to the manufacturer's classification: Beijing Gujia doors and windows, Shenghai doors and windows, Aisi Yiou doors and windows, top-notch doors and windows, imperial doors and windows, Hongkailai doors and windows, etc.