Garage Door Chain Gear Broke

This can be easily replaced by a garage door service technician.

Garage door chain gear broke.

To do this put some lubricant on a piece of rag this use the rag to wipe the chain. Thread the nut s facing the door clockwise until it meets the bracket then release the chain. If the chain on your garage door is rusty you need to apply lubricant into it to loosen the corrosion. The gear and sprocket assembly is inside the cover of the garage door opener motor.

Garage door openers. Press down on the chain with your finger. Move the ladder to the outer end of the chain arm near the garage door. The most common cause of a chain being loose and appearing broken is a broken gear and sprocket.

A broken garage door chain will immediately impact your garage door s operation and render its automatic motorized capability effectively useless. Pull the chain toward the garage door and hold it in position. 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. Lay the chain on the garage floor while you complete the repair.

Slide the outer trolley away from the inner trolley. Pull the chain off the motor unit sprocket and out of the chain spreader. Grasp the chain 1 foot from where it connects to the end of the threaded chain anchor. Periodic maintenance of a liftmaster chain driven garage door opener includes lubricating the chain and greasing the chain rail.

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. It will usually run about 200 00 total. The gear will cost about 50 00 with shipping and then the cost of having someone install it. Immediate troubleshooting is required and a new garage door chain will need to be installed in place of the old one.

How to lubricate a liftmaster chain driven garage door opener.