Spacer washers limit door side travel, keeps panels from contacting track and help cables wind properly. They are placed at top joint , and bottom joint roller shafts only. Each of these 4 points should have 3 spacer washers. Side seals should be mounted between face and post. The uniformly contact door and seal out dirt and moisture.
Top panels have adjustable roller brackets.
Panel position should be nearly vertical, sealing at the sides as well as across the entire top. A properly adjusted door should slowly creep open when lock is unlatched, and come to rest in the fully open position. Check cables with door in fully open position. Both cables should be wound onto their cable drum in a uniform pattern. No grooves are to be skipped.