Joe, there is no procedure on chains or belts, sicne the roof is moved by gears. There is a procedure on Sunroof Window Height and Opening Fit Adjustment, for the glass. Is that what you need? Other information just says inspect for binding or mechanical binding by removing the headliner. Maybe you could remove the rubber trim around the opening to see what you need too, not sure. There also is info on if it does not close, or open properly and is all electrical diagnosis information. Let me know what you think you may need and I'll make a PDF of it and then email it. Just give me an email address.