Pushing the door upward into the top track gives the door enough space to fit into the bottom track.
How to get a closet door back on its hinge.
Unscrew the top hinge from the frame.
Release the door and let it swing gently back to the vertical position.
Unscrew the screws holding the bottom hinge to the door frame using a phillips screwdriver.
Spring loaded hinges are always spread out like a butterfly and mounted flat on the outer frame.
Hold door hinge against cardboard and use utility knife to cut around hinge.
The style shown in the photo requires you to lift the door and drop the pin into a different notch in the bracket.
Insert the door s wheels into the double track inside the upper door jamb lifting it as far as it will go.
Remember to make sure that the top rollers are directly above the top track s hinge when pulling the door downward.
If it is still swinging open on its own repeat this process with the bottom hinge.
Make sure that the top roller properly hinges itself onto the top track and the bottom fits into the bottom track.
Open the door to carefully remove it.
One requires you to loosen a set screw and slide the bracket in or out.
Angle the bottom of the door toward you while you let it down and the wheels should hook right onto the track.
If one is loose remove two or more screws and try driving in longer screws.
Lay the door on a flat surface and unscrew the hinges from the door.
Set two or three cardboard shims in the hinge mortises on the door and jamb then replace the hinge.
If a door binds open it grasp the knob and lift up to see if a hinge is loose.
Adjust the height of the doors by screwing the bottom pin in to lower them or out to raise them.