How to Inspect Garage Door Rollers and Brackets

What You'll Need
Adjustable wrench
Pry bar
Axle grease
Wire tool
Crimping tool
Wire clamps

When your garage door does not open and close properly, it may be caused by damaged garage door rollers. The rollers are on a shaft that fits into a bracket or sleeve on your garage door, which in turn slides on a track. Any of these three components could be the cause for mechanical issues, if the door closed on something, or has jammed, it can apply a heavy amount of back pressure, causing any of these components to snap or break.

Step 1 - Check the Track for Interruptions

The first thing you will want to do is check the entire length of the track and make sure that all the ends come together evenly, where the sections join. Bends or breaks in the track can prevent the door from going up or down, as it can't reach the next track section. If this is the case, use your pliers and attempt to manually bend the track back into place. This happens quite a bit on large garages that have large vehicles backing into them, as they will occasionally hit the corner and split the rails without much effort. The next thing to check is the actual garage door rollers, where they attach to each door panel.

Step 2 - Check the Rollers Connection to the Door

Look carefully at each of your garage door rollers, and where the sleeve or socket is bolted to the door panels. If these are bend or broken, you will need to fix or replace them. The rollers work on a shared load type of system, where each roller maintains the height and stability of its own panel as it moves along the track. If one of these is bent or broken, it will cause that panel to buckle, and the door to snag as it is traveling, which can cause even more damage over time if it's automated.

Step 3 - Check the Roller Wheels

In some cases garage door rollers can become worn or flat on one end, from the wheel actually not spinning, and instead dragging itself up and down the track. Over time it will eat away the metal edge of the wheel and wear it down to the point it is literally being dragged up and down the track. When this occurs, you will want to pop the wheel out of joint and replace it, use your axle grease to lube the track to prevent this issue from happening again. This is generally caused from rust buildup in the wheels or track, causing friction that over time that will eat your garage door components alive. Keeping the track and wheels well lubricated, so that changes in air temperature and humidity do not take a toll on your wheels and track. 

Step 4 - Check the Draw Cable

Your garage door rollers don't work on their own, they are actually pulled along by the remote door cable. This is basically a two way rotating cable that attaches in the remote door opener, and ties off on the door frame at some point. Make sure the cable is not broken or frayed, and if so, you can simply replace it.