Proper Chain Tension On Garage Door Opener

Unplug the garage door opener then try to open the door with the wall button.

Proper chain tension on garage door opener.

Usually a pair of nuts are associated with the locking mechanism while one is concerned with the adjustment of the chain. Chain adjusts by shortening the chain itself. 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. There may be an adjustment linked to the chain or an adjustment to the length of the door opener track.

Just because the door is open does not mean that the spring tension is fully released. By william machin you need proper tension on a garage door to operate the door by hand or with an automatic opener. On the master link you will see two or three nuts. Replace the batteries in the door remotes.

Both adjustment types should be done with the door closed and disconnected from the opener using the emergency release. Use the wrench to loosen the lock nuts and turn the adjustment nut to set the slack in the chain. To achieve proper tension be sure to release the door from the opener before making any adjustments. If it does not open you need to replace the backup battery.

Hold the garage door in this position by attaching a c clamp to the track at a point below the lowest door roller wheel. Using a screwdriver remove the cover on the garage door opener and then replace the spent battery with a new one.