Aluminium alloy door the window pulley is often broken, then it needs to be changed. So how to change is correct. We summarize the methods and steps of replacing pulleys for aluminum alloy doors and windows.
1. First, lift one end of slide door with one hand perpendicular to the ground, and one hand flick over the lower part of slide door slide *, holding up SLIDE *.
2. Lift the slide door end from the track and put it down.
3. Similarly, hold up the slide * on the other end of the slide door and take out the track.
4. Put down the slide door, then hold both ends of the slide door with both hands and lift up.
5. Move the bottom outward, which makes less and less departments fall into the groove on the upper part of slide door
