Garage Door Chain Gear Broke

Thread the nut s facing the door clockwise until it meets the bracket then release the chain.

Garage door chain gear broke.

The gear and sprocket assembly is inside the cover of the garage door opener motor. Garage door openers. Periodic maintenance of a liftmaster chain driven garage door opener includes lubricating the chain and greasing the chain rail. Pull the chain toward the garage door and hold it in position.

If the chain on your garage door is rusty you need to apply lubricant into it to loosen the corrosion. Move the ladder to the outer end of the chain arm near the garage door. To do this put some lubricant on a piece of rag this use the rag to wipe the chain. Pull the chain off the motor unit sprocket and out of the chain spreader.

This can be easily replaced by a garage door service technician. A new garage door open start around 130 00 plus installation. I hope this will help. Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley.

Immediate troubleshooting is required and a new garage door chain will need to be installed in place of the old one. Slide the outer trolley away from the inner trolley. The gear will cost about 50 00 with shipping and then the cost of having someone install it. Press down on the chain with your finger.

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. How to lubricate a liftmaster chain driven garage door opener. 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. Grasp the chain 1 foot from where it connects to the end of the threaded chain anchor.

It will usually run about 200 00 total.