The following garage door repair video will show proper maintenance and inspection of your extension spring garage door. All lubrication points are covered for springs, rollers, hinges, pulleys, track and locks. Garage doors have many moving parts. It is imperative that proper and regular lubrication is performed on your garage door. Springs, rollers, hinges and pulleys are all critical components to your garage door and they all need lubrication. Rollers both rotate and slide back and forth in the hinge. The garage door track must be lubricated regularly. Hinges will become loose in time and must be tightened. Performing regular maintenance and lubrication on your garage door will save wear on all moving parts. Additionally, while doing maintenance and inspection on your garage door you will recognize any excessive wear or worn parts. Replacing these parts before they completely fail will save you time and money down the road. Always unplug and detach your garage door opener from your garage door before beginning any repair.