The plastic gear on the drive shaft is designed to fail if the garage door gets stuck in the travel tracks protecting the expensive drive motor from damage.
Garage door gear broke.
If the gear and sprocket assembly breaks the motor runs but the door won t move.
Replace a broken gear and sprocket assembly with the manufacturer approved replacement part.
This was a craftsman model 139 53976srt.
This can be easily replaced by a garage door service technician.
Your garage door opener has a gear and sprocket that will eventually fail.
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The spring on my garage door broke and scott replaced the entire spring system with a more up to date design see all shamrock overhead door reviews door depot.
When a spring breaks on a garage door an immense amount of energy is displaced.
The 41c4220a oem liftmaster gear and sprocket assembly is the preferred way to refurbish your garage door opener as it quickly replaces all of the common wear parts in the opener drive system.
Shop menards and save big on replacement extension springs cables rollers brackets and openers for your garage door.
8 27 2020 the spring inside the shaft on my garage door broke i contacted my home warranty company and they contracted your company five star garage doors to do the job.
100 brand new authentic liftmaster chamberlain craftsman part.
Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door.
This is a video on how to change the gear sprockets in a craftsman garage door opener.
The most common cause of a chain being loose and appearing broken is a broken gear and sprocket.
Liftmaster and chamberlain garage door openers are very common for this.
Torsion springs are mounted over the garage door and they have a shaft running through the middle.
When they break the spring unwinds in less than a second and creates a loud noise due to the coils spinning on the shaft.