Garage Door Chain Gear Broke

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.

Garage door chain gear broke.

It will usually run about 200 00 total. Thread the nut s facing the door clockwise until it meets the bracket then release the chain. How to lubricate a liftmaster chain driven garage door opener. Pull the chain off the motor unit sprocket and out of the chain spreader.

Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley. Pull the chain toward the garage door and hold it in position. This can be easily replaced by a garage door service technician. Immediate troubleshooting is required and a new garage door chain will need to be installed in place of the old one.

A new garage door open start around 130 00 plus installation. 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. If the chain on your garage door is rusty you need to apply lubricant into it to loosen the corrosion.

Press down on the chain with your finger. The gear and sprocket assembly is inside the cover of the garage door opener motor. I hope this will help. Periodic maintenance of a liftmaster chain driven garage door opener includes lubricating the chain and greasing the chain rail.

Lay the chain on the garage floor while you complete the repair. 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. 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.

A broken garage door chain will immediately impact your garage door s operation and render its automatic motorized capability effectively useless.