You ll need to get a replacement gear set.
How to replace garage door opener gear.
It can be a complicated repair but not impossible to do yourself.
How to change the gear on a liftmaster accessmaster craftsman chain drive garage door opener.
This diy repair guide explains how to replace the gear and sprocket assembly on a chain drive garage door opener.
Garage door opener repair 101.
This was a craftsman model 139 53976srt.
Not a difficult repair and can save you a couple hundred do.
Replacing the main drive gear.
Video overviews how to replace your garage door opener main drive gear on chamberlain sears craftsman and liftmaster garage door openers.
Step 1 unplug opener.
It s one of the most common garage door opener repair problems there is.
If the gear and sprocket assembly breaks the motor runs but the door won t move.
Several components will need to be removed to get at the gear.
Replace the main gear drive if the garage door opener makes a grinding noise but the door doesn t move your main drive gear is probably toast.
Garage door opener won t open all the way fix.
Amazon and other online retailers carry many popular gear kits ranging in price from about 18 to 30.
Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door.
Replacing a garage door opener gear is not a difficult project but does require some care and attention to detail this gear is situated between the belt and the motor drive.
If you are in a bigger hurry you should be able to find a kit at a local garage door opener dealer.
Before doing any work on the garage door opener you must unplug the opener to guard against the possibility of an accident.