Garage Door Chain Gear Broke

Periodic maintenance of a liftmaster chain driven garage door opener includes lubricating the chain and greasing the chain rail.

Garage door chain gear broke.

Lay the chain on the garage floor while you complete the repair. Grasp the chain 1 foot from where it connects to the end of the threaded chain anchor. This can be easily replaced by a garage door service technician. Pull the chain toward the garage door and hold it in position.

I hope this will help. Immediate troubleshooting is required and a new garage door chain will need to be installed in place of the old one. Loosen the bolts on the chain pulley that s attached at the top of the arm and slide the pulley one inch toward the motor. The most common cause of a chain being loose and appearing broken is a broken gear and sprocket.

Pull the chain off the motor unit sprocket and out of the chain spreader. Garage door openers. Slide the outer trolley away from the inner trolley. If the chain on your garage door is rusty you need to apply lubricant into it to loosen the corrosion.

A new garage door open start around 130 00 plus installation. It will usually run about 200 00 total. Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley. Thread the nut s facing the door clockwise until it meets the bracket then release the chain.

Move the ladder to the outer end of the chain arm near the garage door. A broken garage door chain will immediately impact your garage door s operation and render its automatic motorized capability effectively useless. To do this put some lubricant on a piece of rag this use the rag to wipe the chain. How to lubricate a liftmaster chain driven garage door opener.

Press down on the chain with your finger.