Craftsman Garage Door Chain Fell Off

Keep it propped open while you fix the chain.

Craftsman garage door chain fell off.

To reinstall the chain on the sprocket first with the door closed pull the rope hanging down from the trolley on the t bar. Grasp the chain 1 foot from where it connects to the end of the threaded chain anchor. If the gear and sprocket assembly breaks the motor runs but the door won t move. Once you locate where the wheels on the door are jumping.

The chain is attached to a threaded rod that is attached to the trolley. Pull the chain toward the garage door and hold it in position. The chain moves about 6 inches trying to close again and stops. Pull down the trolley cord to release the trolley from the chain arm and lower the door by hand.

If you find that your garage door opener chain falls off the track on which it has been placed you will need to put it back up and then tighten the chain to stop this happening in the future. Disconnect the garage door from the opener. Open the door manually. Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door.

This will release the door from the garage door opener. Press down on the chain with your finger. If you are outside the door when this occurs you will need some assistance to move the door manually. Thread the nut s facing the door clockwise until it meets the bracket then release the chain.

If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch. I have a 4 year old craftsman 1 2 hp garage door opener. Problem is that the door only seems to want to close and it s already closed. In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.

Every time you push the. Replace a broken gear and sprocket assembly with the manufacturer approved replacement part.