How To Replace Worm Gear On Sears Garage Door Opener

Shredded plastic gears are a common problem with chain driven garage door openers.

How to replace worm gear on sears garage door opener.

Slide the new drive gear onto the drive shaft and line up the mounting hole in the drive gear with the hole in the drive shaft. Use a punch and hammer to drive the roll pin out of the drive shaft. Slide the outer trolley away from the inner trolley. The most common issue that occurs is when the ridges in the gear wear out because the gear lubrication has evaporated.

Step by step garage door opener gear fix. Pull the chain off the motor unit sprocket and out of the chain spreader. Replace the drive gear. How to replace sears liftmaster garage door opener 41c4220a gear and sprocket hd solid ground staging.

Pull the drive gear off the drive shaft. This turns the chain and moves the door. Insert the new roll pin through the gear and drive shaft. 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.

Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley. Lay the chain on the garage floor while you complete the repair. How to change the gears or sprockets in a garage door opener duration. Align the bolt hole with the cover hole on the top of the opener towards the back side closest to the door.