I've got a sliding patio screen door that doesn't slide right, so I have been trying to adjust it. I've been chasing my tail for 2 days now and am seeking advice. The door has 4 adjusting screws, one for each roller. Two on the top and two on the bottom. The screws raise or lower the up/down length of travel of each roller. Is there a secret to doing this? With the door in place, I can only adjust the front up & down rollers. I can't reach the rear two. So each time I adjust those, I must take the door off the track and quite frankly I am getting totally frustrated. With every turn of the screws, it seems to get worse. Where I'm at now is that instead of sliding, the door wants to tilt up, then the backside binds on the track, so it's a jiggilly/bumpy slide.
Thanks, Joe J.