Replace Drive Gear Liftmaster Garage Door Opener

If the gears break or strip the door won t move.

Replace drive gear liftmaster garage door opener. Our garage door opener gear part of kit 41a2817 41c4220a is compatible with chain drive and belt drive operators since 1984 current including the following. This turns the chain and moves the door. Liftmaster craftsman chamberlain sears garage master access master master mechanic security estate series raynor formula i whisper drive power drive billion code and. This was a craftsman model 139 53976srt.

Follow the steps in this repair guide and video to replace the gear and sprocket assembly in craftsman chamberlain and liftmaster chain drive garage door openers. This is a video on how to change the gear sprockets in a craftsman garage door opener. In most chamberlain liftmaster and sears openers a motor turns the worm gear and drive shaft inside the opener which rotates the sprocket attached to the top of the drive shaft. Motor unit assembly parts rail assembly parts and installation parts for liftmaster chain drive garage door opener models 1355 1355m 1356 1356m liftmaster 1345 1345m 1346 1346m repair parts list and diagrams.

Replace a broken gear and sprocket assembly with the manufacturer approved replacement part. This diy repair guide explains how to replace the drive and worm gears on a chain drive garage door opener. The most common issue that occurs is when the ridges in the gear wear out because the gear lubrication has evaporated. Ang 20242wgrease drive gear with grease for sears crafsman liftmaster chamberlain garage door openers 1984 current 4 7 out of 5 stars 448 5 45 5.