If yours is a belt drive you need a kit like this https amzn to 2zqns.
Garage door opener repair plastic gear.
If the gear and sprocket assembly breaks the motor runs but the door won t move.
Sure enough the large plastic gear was stripped so i ordered this kit.
Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door.
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 drive gear compatible w sears craftsman chamberlain 81b0045 by the rop shop.
This was a craftsman model 139 53976srt.
The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.
Free shipping on eligible orders.
From logic boards to chain kits to safety reversing sensors find the right liftmaster replacement part to help you with any garage door opener repair project.
Garage door opener won t open all the way fix.
I have seen and tackled this problem before.
Free shipping and free returns on prime eligible items.
It can be a complicated repair but not impossible to do yourself.
This is a video on how to change the gear sprockets in a craftsman garage door opener.
It s one of the most common garage door opener repair problems there is.
Shredded plastic gears are a common problem with chain driven garage door openers.
By the rop shop.
This diy repair guide explains how to replace the gear and sprocket assembly on a chain drive garage door opener.
High quality rigorously tested and durable only liftmaster parts are recommended for repairing your garage door opener.
This is the plastic gear that comes in direct contact with the worm drive gear on the motor.
You ll need to get a replacement gear set.
Fortunately the repair is neither difficult nor expensive and it should only take an hour of your time.
Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products.
Several components will need to be removed to get at the gear.
I needed this kit to repair my neighbor s garage door opener.
So if you suddenly find that the motor on your garage door opener sounds like it s running but the door is not moving checking for worn gears is the first thing you should do.
She was going to buy a whole new opener but i told her to wait until i took a look at it.