Removal and Installation Tips

For an aluminum patio door normally you must remove all the doors to the out side of the house begining with the stationary door. There should be some clips or brackets on the back of the door and possibly toward the middle where the both doors meet top and bottom of track. Slide the door over toward the middle and lift up and out. Next the sliding door lift up and remove from track. To get to the rollers you must remove the bottom rail of the door. Remove the corner screws on sides of the door. next with a block of wood try to tap off the bottom rail becarefull you don't damage the glass. Take note on some doors to remove the bottom rail you might have to remove the side rails first, but you wont know till you try. After you have removed the bottom rail the rollers should be exposed enough to where you can see they are held in. It could be held in with a screw, some type of clip or a hook.

Yes, I think I know the problem; like Dave said, with door removed take the door frame screws out and knock off the bottom rail to remove wheels. Sounds like you are trying to remove wheels intact in frame, when they might slide out the open end.