How Ro Replace Garage Door Chain

The chain got loose and popped off the gear.

How ro replace garage door chain.

Pull the chain cable out of the rail window. There are three phillips screws holding on the garage door opener back cover. The top two only need to be loosened when you take out the bottom screw the cover will slide down. This should give you room to replace the chain drive module.

Use a step ladder to access the garage door opener s power cord and motor unit. How to put a chain back on an automatic garage door opener. Lower the motor unit down. Documenting how i repaired the garage door.

Remove the chain and cable assembly. If the chain on your garage door is rusty you need to apply lubricant into it to loosen the corrosion. You can just let the cover hang by the wires plugged into it. Disconnect the trolley threaded shaft from the chain by removing the master link clip on spring master link cap and master link bar.

To do this put some lubricant on a piece of rag this use the rag to wipe the chain. Disengage the garage door from the opener by pulling down on the emergency pull cord to release the door trolley from the opener carriage. I am not a professional. If your chain is badly corroded you may need to remove the chain from the carriage assembly and soak it in lubricant for a few hours.

Press the wall control button or remote so that the opener completes its close.