The first line of defense is to lubricate the moving parts. As shown at right, apply any light weight oil (WD40 or spray oil is easiest) to all rollers and hinges at least once a year. There are end hinges which hold the rollers in the track, as well as center hinges which pivot as the door moves. Lubricate all pivot points.
Garage door springs should be coated about once every season. Allow the oil to drip down and coat the cables on the sides of the garage door.
While lubricating, you should also check the garage door hardware parts. With repeated use, the hardware on the garage door wil tend to loosen over time. If you notice any loose screws, bolts, or nuts, tighten them so hardware parts won’t fall out of adjustment.
To prevent binding, the tracks should be properly aligned to guide the garage door rollers. If one or both of the tracks needs adjustment, loosen the mounting bolt(s) and use a hammer and a wood block to persuade it in the proper direction. Once the track is realigned, re-tighten the bolt.