The worm gear which attaches to the motor shaft meshes with the drive gear to spin the sprocket and drive the chain to open and close the garage door.
How to replace gear in craftsman garage door opener.
This diy repair guide explains how to replace the drive and worm gears on a chain drive garage door opener.
If the gear and sprocket assembly breaks the motor runs but the door won t move.
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.
1 16 of 240 results for craftsman garage door opener gear replacement for liftmaster 41c4220a gear and sprocket kit fits chamberlain sears craftsman 1 3 and 1 2 hp chain drive models 4 8 out of 5 stars 1 847.
We also stock replacement circuit boards for your craftsman garage door operator and all the.
When problems arise following some basic troubleshooting steps will help diagnose the cause of the problem.
Replace a broken gear and sprocket assembly with the manufacturer approved replacement part.
32 2 heavy duty nylon main drive gears see more product details.
This was a craftsman model 139 53976srt.
If the gears break or strip the door won t move.
Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door.
Most of the features and functions on each model work in the same way.
Shredded plastic gears are a common problem with chain driven garage door openers.
Fortunately the repair is neither difficult nor expensive and it should only take an hour of your time.
Find the best replacement parts for less for your sears craftsman garage door opener at garage door supply company.
Each of the several models of the craftsman 1 2 hp garage door opener is operated by a chain drive.
This is a video on how to change the gear sprockets in a craftsman garage door opener.