Proper Chain Tension On Garage Door Opener

If the tension is too loose the springs that help lift the door are ineffective.

Proper chain tension on garage door opener.

A properly adjusted chain will be above the base of the rail at its midpoint at inch for t rail or inch for square rail. Chain adjusts by shortening the chain itself. Replace the batteries in the door remotes. If it does not open you need to replace the backup battery.

There are only a few ways that the chain can be tightened. Both adjustment types should be done with the door closed and disconnected from the opener using the emergency release. This is true even if you have a garage door opener. By william machin you need proper tension on a garage door to operate the door by hand or with an automatic opener.

Hold the garage door in this position by attaching a c clamp to the track at a point below the lowest door roller wheel. Just because the door is open does not mean that the spring tension is fully released. Use the wrench to loosen the lock nuts and turn the adjustment nut to set the slack in the chain. There may be an adjustment linked to the chain or an adjustment to the length of the door opener track.

Unplug the garage door opener then try to open the door with the wall button. To achieve proper tension be sure to release the door from the opener before making any adjustments.