How hardware door and window wheels should be used

Hardware door and window wheels are relatively simple to use, the following is the general installation and replacement steps.

1. Grasp the window with both hands, push upwards, and then follow the trend to do inward "pull" movement, the window is very easy to take down.

2. Use a screwdriver to unscrew the lock of the window sash.

3. Then use a screwdriver to pry down the sealing strip slowly.

4. Then unscrew the screws of the wheels and remove the broken pulleys.

5. Install a new pulley that matches the size of the bad pulley in the pulley groove.

6. After the pulley is replaced, the plastic window back on, by hand, the two windows back and forth a few times, to determine whether the new pulley can be used properly.